53 results about "Diffusion chamber" patented technology

This application relates to the field of swimming pool disinfection equipment technology, and in particular to a portable swimming pool disinfection dispenser, which includes a feeding assembly, a spraying assembly, a buoyancy device, a drive device, and a direction-changing assembly. The medicine storage tank is equipped with a dosing channel, and the buoyancy device surrounds the medicine storage tank to ensure buoyancy. The spraying assembly uses wind power via a guide vane to rotate the diffusion chamber, achieving uniform dispersion of the disinfectant. This application enhances stability and uniform dispersion of the disinfectant through the design of a rotary bearing, sealing ring, and regulating valve. Simultaneously, the use of wind power to drive the guide vane and rotate the diffusion chamber enables rotation control and convenient operation. This application solves the problems of complexity and high cost of existing equipment, providing a lightweight and economical swimming pool disinfection solution suitable for home and small swimming pool scenarios.

The invention discloses a monovalent cation selective separation membrane and a preparation method thereof, and belongs to the technical field of ion exchange membranes. The preparation method comprises the following steps: respectively dissolving a diamine monomer and an acyl chloride monomer in water and n-hexane to respectively obtain a water-phase solution and an oil-phase solution; fixing the porous base membrane in the middle of a central channel of a diffusion device, respectively pouring the water-phase solution and the oil-phase solution into diffusion chambers on the upper side and the lower side of the central channel, carrying out diffusion interface polymerization, taking out the membrane, washing with n-hexane, and drying to obtain the monovalent cation selective separation membrane. The preparation method of the monovalent cation selective separation membrane provided by the invention has the advantages of cheap raw materials, mild preparation conditions, simple operation and the like, so that the membrane preparation cost can be greatly reduced, and the existence of chloromethyl on the membrane makes the polyamide structure more stable. Meanwhile, the electrodialysis Na < + > / Me4N < + > and K < + > / Me4N < + > separation of the prepared monovalent cation selective separation membrane shows performance superior to that of a commercial CIMS membrane, and the monovalent cation selective separation membrane has wide application prospects in the fields of electronic-grade TMAH purification preparation and the like.

The present invention discloses a micro-nano bubble generating connector, comprising: a jet component, the jet component is provided with a gas-liquid access channel, a jet channel and a diffusion chamber connected in sequence, the gas-liquid access channel is provided with a first gas-liquid inlet for inputting a gas-liquid mixed fluid at one end away from the jet channel; the cross-sectional area of ​​the jet channel is smaller than the cross-sectional area of ​​the gas-liquid access channel and the diffusion chamber; and a bubbler, comprising at least one bubble channel, one end of the bubble channel is a second gas-liquid inlet, the other end is a gas-liquid outlet, the second gas-liquid inlet is connected to the diffusion chamber, and the cross-sectional area of ​​the bubble channel gradually increases from the second gas-liquid inlet to the gas-liquid outlet; a gas-liquid outlet joint is provided with a gas-liquid collecting chamber and a terminal connecting portion for connecting to a water outlet terminal, the gas-liquid collecting chamber is connected to the gas-liquid outlet. The micro-nano bubble generating connector can be conveniently connected to the water outlet terminal, does not require major adjustments to the cleaning equipment, is more convenient to use, and generates micro-nano bubbles with high efficiency and large quantity.

The invention discloses a high-flux micro-nano bubble generation system, comprising: a gas-liquid mixer, comprising an air inlet, a liquid inlet and a mixing channel, wherein the liquid inlet is connected to a liquid supply pipe and a shutoff valve is provided between the two; a small-flux booster pump, connected to a first gas-liquid outlet; a bubble generation device, comprising a jet component and a bubbler; the jet component is provided with a gas-liquid access channel, a jet channel and a diffusion chamber, and the gas-liquid access channel is provided with a first gas-liquid inlet connected to the small-flux booster pump; the bubbler comprises at least one bubble channel, which is connected to the diffusion chamber; and a shunt pipe, one end of which is connected to the liquid supply pipe and the connection is located in front of the shutoff valve, and the other end is connected to the first gas-liquid inlet; the flow rate of the shunt pipe is greater than the flow rate of the small-flux booster pump. The high-flux micro-nano bubble generation system can produce water containing a large number of micro-nano bubbles after multiple gas-liquid mixing, with high bubble concentration, large flux and relatively low cost.

The utility model discloses a cascade large-pressure-rise ejector, and relates to the technical field of ejectors, the cascade large-pressure-rise ejector comprises a high-pressure cavity, a high-pressure fluid inlet is formed in the high-pressure cavity, a first mixing chamber is arranged in the high-pressure cavity, a low-pressure fluid nozzle is arranged at the head end of the high-pressure cavity, the tail end of the low-pressure fluid nozzle is located in the head end of the first mixing chamber, and the tail end of the low-pressure fluid nozzle is located in the head end of the second mixing chamber; a second mixing chamber is arranged at the tail end of the high-pressure cavity, the tail end of the first mixing chamber is located in the head end of the second mixing chamber, and a diffusion chamber is arranged at the tail end of the second mixing chamber. Therefore, the problems existing in a two-stage series connection mode are solved, meaningless kinetic energy loss caused by speed reduction boosting and then pressure reduction acceleration under the condition that the two ejectors are split is avoided, and the ejection capacity is improved.

The utility model discloses a transdermal diffusion experiment device which comprises a base, an anti-rotation limiting gasket and a pressing ring. A diffusion chamber is formed in the base, and a circle of step surface is arranged on the inner side wall of the base. The anti-rotation limiting gasket is arranged on the step face in a non-relative-rotation mode. The pressing ring is detachably installed above the anti-rotation limiting gasket. A liquid channel and an exhaust channel which are communicated with the diffusion cavity are formed in the outer wall of the base at intervals, the liquid channel extends to one side of the diffusion cavity from the outer wall of the base, and the bottom wall of the part, close to the diffusion cavity, of the liquid channel is flush with the bottom wall of the diffusion cavity. The exhaust channel extends to the outer wall of the base from the other side of the diffusion cavity, and the top wall of the part, close to the diffusion cavity, of the exhaust channel is flush with the top opening of the diffusion cavity. And a transdermal test membrane is detachably clamped between the opposite surfaces of the step surface and the anti-rotation limiting gasket. The transdermal diffusion experiment device disclosed by the utility model has the advantages of small volume of the diffusion chamber and convenience in use.

The utility model relates to water body oxygenation technical field especially, more particularly to a fan circulating water oxygenation equipment. Its technical scheme includes: pedestal, suction chamber and suction pipe, be equipped with the nozzle on the pedestal, be equipped with the suction chamber on the nozzle, the other end of suction chamber is equipped with the mixing chamber, the other end of mixing chamber is equipped with the diffusion chamber, the mixing chamber, nozzle, suction chamber and diffusion chamber constitute the jet structure, jet structure is used for gas water mixture, increases water body oxygen content, the bottom end suction inlet of suction chamber is equipped with suction pipe, the bottom end of suction pipe is equipped with the impurity removal structure, and the impurity removal structure is used for removing the impurity that suction pipe orifice filters. The utility model discloses through the jet structure and carries out the water body oxygenation circulation of lasting, has improved water body dissolved oxygen content, the impurity that automatic cleaning filter plate surface adheres, ensures the filtering effect of filter plate sustained and stable, avoids the equipment performance decline caused by the impurity blockage or accumulation.

An in vitro trans-dermal diffusion apparatus for gas exposure, including: a gas generator, an exposure chamber, an exhaust treating device, a sampling arm, a diffusion chamber, a liquid replenishment tank, and a sample bottle rack. The in vitro trans-dermal diffusion apparatus for gas exposure supports multiple diffusion chambers conducting gas exposure experiments simultaneously. The sampling port and replenishing port of the diffusion chamber are separated, enabling the rapid replenishment of fluids through a replenishment tank after sampling, which reduces the time the skin membrane is separated from the receptor fluid. The sampling arm of the in vitro trans-dermal diffusion apparatus for gas exposure, combined with a telescoping rod, allows the sampling needle to be inserted into the sampling port for sampling and can also be extended into a sample bottle to release the sample, minimizing the contact between the sample liquid and the air.

The utility model discloses a self-pressurization defoaming device, which belongs to the technical field of auxiliary equipment for mineral flotation, and comprises a nozzle for injecting pressurization defoaming water, the nozzle comprises a water injection chamber, a first pressurization chamber, a conical chamber and a diffusion chamber which are sequentially and coaxially arranged and communicate with one another. The conical cavity is in a truncated cone shape, and the end, with the large bottom face area, of the conical cavity communicates with the columnar first pressurization cavity. The diameter of the end face, communicated with the first pressurizing chamber, of the conical chamber is larger than that of the first pressurizing chamber, and the diameter of the end face, communicated with the diffusion chamber, of the conical chamber is smaller than that of the first pressurizing chamber. The device is simple in overall structure and convenient to operate and use, and has a good defoaming effect on traditional and unbreakable foams.

The present invention discloses a micro-nano bubble generation system, comprising: a gas-liquid mixer, which includes an air inlet channel, a liquid inlet channel and a mixing channel. One end of the mixing channel is connected to the air inlet channel and the liquid inlet channel, and the other end is a first gas-liquid outlet; a pump body, which is connected to the first gas-liquid outlet; and a bubble generation device, which includes a jet member and a bubbler. The jet member is provided with a gas-liquid access channel, a jet channel and a diffusion chamber. The gas-liquid access channel is provided with a first gas-liquid inlet connected to the pump body. The cross-sectional area of the jet channel is smaller than the cross-sectional areas of the gas-liquid access channel and the diffusion chamber. The bubbler includes at least one bubbling channel. One end of the bubbling channel is a second gas-liquid inlet, and the other end is a second gas-liquid outlet. The second gas-liquid inlet is communicated with the diffusion chamber, and the cross-sectional area of the bubbling channel gradually increases from the second gas-liquid inlet to the second gas-liquid outlet. In this micro-nano bubble generation system, through multiple gas-liquid mixing, it can generate water containing a large number of micro-nano bubbles, with a high bubble concentration and good effects.

To provide improved methods and compositions for treating cancers using antisense.SOLUTION: The present disclosure relates to compositions and methods for treating cancers using antisense (AS) nucleic acids directed against Insulin-like Growth Factor 1 Receptor (IGF-1R). The AS may be administered to the patients systemically, or may be used to produce an autologous cancer cell vaccine. The AS is provided in an implantable irradiated biodiffusion chamber comprising tumor cells and an effective amount of the AS. The chambers are irradiated and implanted in the abdomen of subjects and stimulate an immune response that attacks tumors distally. The compositions and methods disclosed herein may be used to treat many different kinds of cancer, e.g., glioblastoma.SELECTED DRAWING: None

The present invention discloses a system and method for measuring the in-situ gas diffusion coefficient and permeability of rocks. The measurement system includes: a diffusion and permeability measurement unit, which includes: a gas cylinder assembly, including a first target gas cylinder, a reference gas cylinder and a second target gas cylinder connected in parallel with each other; a first diffusion chamber and a second diffusion chamber, the first end of the first diffusion chamber is connected to the first output node, and the second end of the first diffusion chamber is connected to the input port of the high-temperature and high-pressure reactor; the first end of the second diffusion chamber is connected to the second output node, and the second end of the second diffusion chamber is connected to the output port of the high-temperature and high-pressure reactor; a gas chromatograph, configured to detect the gas content and composition information connected thereto; and a pressure difference sensor, configured to detect the pressure difference between a fourth common node and a fifth common node.

The invention discloses a rock in-situ gas diffusion coefficient and permeability determination system and method, and the determination system comprises a diffusion and permeability determination unit which comprises a gas cylinder assembly which comprises a first target gas cylinder, a reference gas cylinder and a second target gas cylinder which are connected in parallel; the first end of the first diffusion chamber is communicated with the first output node, and the second end of the first diffusion chamber is communicated with the input port of the high-temperature and high-pressure reaction kettle; the first end of the second diffusion chamber is communicated with the second output node, and the second end of the second diffusion chamber is communicated with the output port of the high-temperature and high-pressure reaction kettle; the gas chromatograph is configured to be used for detecting the content and component information of gas communicated with the gas chromatograph; and a pressure difference sensor configured to detect a pressure difference between the fourth common node and the fifth common node.

The embodiment of the utility model provides an ejector which comprises an ejector shell, and the ejector shell defines a negative pressure generation chamber and a diffusion chamber. The diameter of the negative pressure generating chamber decreases in the flowing direction, the diameter of the diffusion chamber increases in the flowing direction, the inner surface of the negative pressure generating chamber is formed by rotating a first generatrix around a transverse central axis, and the inner surface of the diffusion chamber is formed by rotating a second generatrix around the transverse central axis. At least one of the first bus bar and the second bus bar is an arc line protruding toward the transverse central axis. The ejector provided by the embodiment of the utility model can effectively eject the target fluid when the working fluid is high in flow or low in flow.

The invention relates to a low-pressure wide gas-liquid two-phase atomizing nozzle and a design method. The low-pressure wide gas-liquid two-phase atomizing nozzle is composed of an outer wall, a radial gas-phase inlet, a split liquid-phase inlet, a mixing cavity, a contraction accelerating cavity, a diffusion cavity and a nozzle outlet, and gas and liquid phases can be mixed in the nozzle and atomized to form fine mist spray to be sprayed out. According to the design method of the low-pressure wide-width gas-liquid two-phase atomizing nozzle, the optimal flow channel curved surface of the shrinkage acceleration cavity, the distribution angle of the shrinkage flow channel of the five-flow-channel diffusion cavity and the pressure working condition of the low-pressure wide-width gas-liquid two-phase atomizing nozzle under the given condition can be calculated. The gas-liquid two-phase atomizing nozzle has the advantages that liquid phase atomization is efficient and fine, the spraying flow and the fogdrop particle size are independently adjusted according to different operation scenes, the requirement for atomization pressure is low, atomization power consumption is low, atomization cost is low, and compared with a common gas-liquid two-phase atomizing nozzle, the number of the nozzles can be remarkably reduced.

The invention discloses a transdermal diffusion experiment device. The device comprises a base, an anti-rotation limiting gasket and a pressing ring. A diffusion chamber is formed in the base, and a circle of step surface is arranged on the inner side wall of the base. The anti-rotation limiting gasket is arranged on the step face in a non-relative-rotation mode. The pressing ring is detachably installed above the anti-rotation limiting gasket. A liquid channel and an exhaust channel which are communicated with the diffusion cavity are formed in the outer wall of the base at intervals, the liquid channel extends to one side of the diffusion cavity from the outer wall of the base, and the bottom wall of the part, close to the diffusion cavity, of the liquid channel is flush with the bottom wall of the diffusion cavity. The exhaust channel extends to the outer wall of the base from the other side of the diffusion cavity, and the top wall of the part, close to the diffusion cavity, of the exhaust channel is flush with the top opening of the diffusion cavity. And a transdermal test membrane is detachably clamped between the opposite surfaces of the step surface and the anti-rotation limiting gasket. The transdermal diffusion experiment device disclosed by the invention has the advantages of small volume of the diffusion chamber and convenience in use.

The invention relates to the technical field of geological survey, and provides a method for quantitatively evaluating the diffusivity of gas in rock, which comprises the following steps: under the conditions of target temperature and pressure, introducing a gas a with a preset molar weight into a first diffusion chamber positioned on one side of a rock sample, introducing a gas b with a preset molar weight into a second diffusion chamber positioned on the other side of the rock sample, at least one of the gas a and the gas b is gas to be detected; detecting the molar weight of the gas b diffused into the first diffusion chamber and the molar weight of the gas a diffused into the second diffusion chamber at set time intervals; and determining the diffusion index of the to-be-detected gas based on a pre-constructed diffusion index model and the molar concentration change condition of the gas a and the gas b between the first diffusion chamber and the second diffusion chamber. According to the technical scheme, the diffusivity of the gas in the rock can be more objectively, scientifically and quantitatively represented, and reliable geological theoretical data is provided for the sealing performance of a cover layer in a resource gas reservoir and gas storage medium evaluation.

The invention relates to a preheating module (10) comprising a dispersion chamber (11) and a diffusion chamber (12), the dispersion chamber comprising a unit (20) for distributing a gas mixture, the unit comprising an inlet (25) at a lower edge (17) and a plurality of inner walls (22) forming a flow path (21) for the gas mixture; the diffusion chamber is located downstream of and arranged above the dispersion chamber (11) and forms a stack together with the dispersion chamber. The flow path (21) of the gas mixture extends predominantly along a longitudinal axis (Y) and a transverse axis (Z) orthogonal to the stack axis (X), the dimension of the diffusion chamber (12) along the stack axis (X) differing by no more than 20% relative to the dimension of the dispersion chamber (11) along which stack axis.

The utility model discloses a cascade backflow ejector, and relates to the technical field of ejectors, the cascade backflow ejector comprises a nozzle, a first mixing chamber, a second mixing chamber, a diffusion chamber and a mixing outlet pipe which are sequentially arranged in the fluid flowing direction; the nozzle is located in the head end of the first mixing chamber, the tail end of the first mixing chamber is located in the head end of the second mixing chamber, the diffusion chamber is connected with the tail end of the second mixing chamber, the head end of the mixing outlet pipe is located in the tail end of the diffusion chamber, and water flows out of the tail end of the diffusion chamber. Mixed fluid which does not enter the mixed outlet pipe flows back into the first mixing chamber from a gap between the nozzle and the head end of the first mixing chamber, and low-pressure fluid enters the second mixing chamber from a gap between the tail end of the first mixing chamber and the head end of the second mixing chamber. Therefore, the problem that an existing ejector is poor in ejection effect is solved, the purposes of increasing the pressure-rise ratio and reducing the area ratio can be achieved, two stages are combined into a whole, the large-ejection-ratio ejection effect is achieved, kinetic energy loss is reduced, and efficiency is improved.

A device for determining radon concentration is provided. The device includes a diffusion chamber, that includes a number of openings that allow radon gas to enter and exit, and a radon sensing arrangement. The radon sensing arrangement includes at least one processing device and one or more detectors, arranged inside the diffusion chamber in such a way that no part of the diffusion chamber is located at a distance, perpendicular to the detector, of more than 20 mm from the closest part of a detector. The at least one processing device is arranged to determine the radon concentration by analyzing and processing the energy spectrum of alpha particles detected by the one or more detectors.

The invention relates to the related technical field of candle aromatherapy, and discloses intelligent candle aromatherapy capable of improving the diffusion effect and a preparation process thereof.The intelligent candle aromatherapy capable of improving the diffusion effect comprises a base, the base is covered with a shell, a candle aromatherapy body is placed on the upper side of the base, a protective cover is installed on the upper side of the base, and two diffusion cavities are formed in the shell; the sides, away from each other, of the two diffusion cavities are each provided with two through openings, and a diffusion assembly is arranged in the shell. The two piston plates can alternately move up and down in the two diffusion cavities, so that fragrance in the protective cover can be alternately sucked into the two diffusion cavities, the fragrance in the two diffusion cavities is alternately discharged through the two through openings, and therefore the fragrance in the protective cover can be continuously diffused and discharged; and one end of an L-shaped rod is in sliding contact with one side of a guide plate to be matched with the guide plate, one side of the guide plate is of an uneven structure, under the elastic action of two arc-shaped elastic pieces, a first shifting plate swings back and forth, and the gas flowing efficiency is improved.

To provide technology that enables the deactivation of a radicalized gas to be suppressed.SOLUTION: A shower head comprises a structure, a first diffusion chamber, a second diffusion chamber, and a plurality of cylindrical parts. The shower head further includes a plurality of first discharge openings provided on a discharge plane of the structure, communicating with the first diffusion chamber and discharging a first gas, and a plurality of second discharge openings which are provided at a position different form the first discharge openings regarding the discharge plane, and which communicate with the communicating holes of the plurality of cylindrical parts and discharge a second gas. The shower head further includes a middle supply chamber provided in the middle in a direction orthogonal to the thickness direction of the structure separately from the first and the second diffusion chambers, for circulating a radicalized third gas, and one or more third discharge openings provided at the center of the discharge plane, for communicating with the middle supply chamber and discharging the third gas.SELECTED DRAWING: Figure 1

The plasma generating device comprises: a device body, which forms a reaction chamber for plasmatizing a processing gas; at least one exhaust passage connected to the reaction chamber; a diffusion chamber connected to the at least one exhaust passage; and a plurality of ejection passages connected to the diffusion chamber and ejecting the plasma gas that has been plasmatized in the reaction chamber, wherein at least one of the plurality of ejection passages has a tapered surface formed at its opening toward the diffusion chamber.

The present invention relates to the technical field of perforation completion and reservoir transformation, and in particular to a self-anchored deep-penetration sandblasting perforation and unblocking integrated device and a method of use. The technical scheme is as follows: an upper leather cup and a lower anchoring leather cup are provided on the middle and lower outer walls of the outer tube of the pump body, a hydraulic self-anchor is provided between the upper leather cup and the lower anchoring leather cup, a perforation nozzle is provided on the lower side of the lower anchoring leather cup, and a return sand liquid inlet is provided at the bottom of the outer tube of the pump body; a sand filter flow divider is provided on the top of the central tube assembly, the middle of the central tube assembly is connected to the outer tube of the pump body through a bridge-type flow guide, a nozzle, a diffusion chamber and a mixed liquid discharge flow channel are formed between the pump core and the inner wall of the central tube assembly, and the lower end of the mixed liquid discharge flow channel is connected to the mixed liquid outlet. The beneficial effects are: not only can the anti-creep function during sandblasting perforation be realized, but also deep-penetration sandblasting perforation can be realized, and the ejected hole wall surface is smooth and regular to avoid damaging the casing; it is easy to operate, simple and reliable in construction, and economical and efficient.

This invention discloses a device and method for efficient co-extraction of vanadium and chromium from vanadium slag, comprising a mixing tank, a slurry pump, a slurry processor, a slurry distributor, a heater, and a reactor connected in sequence. The slurry processor includes a cavity, a slurry inlet, a guide vane ring, a power nozzle, an air intake pipe, and a diffusion chamber nozzle. The cavity, from front to back, consists of a buffer chamber, a mixing chamber, and a diffusion chamber. The slurry inlet is located in the buffer chamber, and the air intake pipe is inserted into the mixing chamber. The guide vane ring and the power nozzle are connected from front to back and located between the buffer chamber and the mixing chamber, while the diffusion chamber nozzle is located between the mixing chamber and the diffusion chamber. The slurry pump is connected to the slurry inlet, the slurry distributor is connected to the diffusion chamber, and the air intake pipe is connected to a high-temperature air source. This invention's device and method achieve efficient co-extraction of vanadium and chromium at low temperature and under normal pressure, with a vanadium leaching rate of over 98% and a chromium leaching rate of over 95%.

The application discloses a monovalent cation selective separation membrane and a preparation method thereof, and belongs to the technical field of ion exchange membranes. A bisamine monomer and an acyl chloride monomer are respectively dissolved in water and n-hexane to obtain an aqueous solution and an oil solution. A porous base film is fixed in the middle part of a central channel of a diffusion device, the aqueous solution and the oil solution are respectively poured into diffusion chambers on the upper and lower sides of the central channel, interfacial polymerization is carried out, then the membrane is taken out, washed with n-hexane, dried, and a monovalent cation selective separation membrane is obtained. The preparation method of the monovalent cation selective separation membrane has the advantages of low raw material cost, mild preparation conditions and simple operation, so that the membrane preparation cost can be greatly reduced, and the existence of chloromethyl on the membrane makes the polyamide structure more stable. Meanwhile, the electrodialysis Na + / Me4N + , K + / Me4N + Separation performance of the prepared monovalent cation selective separation membrane is superior to that of a commercial CIMS membrane, and has a wide application prospect in the fields of electronic-grade TMAH purification preparation and the like.

The invention discloses a device and a method for determining a gas diffusion coefficient in rock, and belongs to the technical field of rock performance determination. The device comprises a core holder, sampling mechanisms, a gas analyzer, a gas source and a pressure gauge, a rock sample is clamped in the middle of the core holder, the two sampling mechanisms are symmetrically arranged at the two ends of the rock sample respectively, and each sampling mechanism comprises a first blind pipe, a cylinder, a second blind pipe and a sampling cavity. The opening end of the first blind pipe directly faces the rock sample and is hermetically connected with the end face of the rock sample to form a diffusion chamber. According to the device for measuring the diffusion coefficient of the gas in the rock, the single sampling cavity can be isolated from the diffusion chamber, the pressure of the diffusion chamber is not influenced in the isolation process, undisturbed sampling can be realized, the influence on the pressure of the diffusion chamber is reduced, and the accuracy of a test result is improved.

The utility model discloses a coal mine ventilation device relates to mine ventilation technical field, including the front and rear arrangement's air intake head and air outlet head, and the air intake head and air outlet head are connected with the air distribution pipe, and the air intake head is connected coal mine downhole pressure system through the pipeline, provides high pressure air, and the air outlet head is connected return air lane through the pipeline, and exhausts mixed gas, and the air distribution pipe includes suction chamber, throat and diffusion chamber, and suction chamber, throat and diffusion chamber constitute venturi effect, and the entrance position of suction chamber is provided with the nozzle, and the nozzle is opposite the throat jet, and the diffusion chamber includes gradually expanding section and export section who sets gradually from front to back, and the cross section area of gradually expanding section is increasing along the flow direction, and extends to export section, and the top of suction chamber is provided with the air inlet, and the air inlet communicates outside and suction chamber. Through high pressure jet flow produces the negative pressure, and the initiative suction blind lane dirty air, need not mechanical rotating part, fundamentally eliminates the explosion risk, improves ventilation efficiency and reduces energy consumption simultaneously.

The present invention discloses a gas diffusion plate, an assembly and a device, wherein the gas diffusion plate comprises a plate body, wherein the plate body is selectively concave on one side to form a diffusion structure, and the other side is a closed portion for forming the diffusion structure, and the diffusion structure comprises: a plurality of gas distribution holes connected in sequence, each for providing gas to a primary diffusion chamber; a primary diffusion chamber, comprising a first main chamber and a first chamber adapted to the gas distribution holes; a first isolation plate with a plurality of primary injection ports; a secondary diffusion chamber, comprising a second main chamber; a second isolation plate with a plurality of secondary injection ports; and a tertiary diffusion chamber connected to the diffusion port. The present invention effectively improves the distribution stability of gas phase material distribution, flow rate and pressure on the entire spray disk surface by optimizing the design of the diffusion structure of the gas shower head, and the gas uniformity at the gas outlet end of the disk surface is good, and the uniformity of thin film deposition is good.

The present application relates to oil and gas field and coal bed gas field drainage technology field, especially relates to a kind of floating pump core ring jet flow pump and use method.The technical scheme is: install low-density floating pump core in the inner cavity of pump barrel, form annular gap between low-density floating pump core and the inner wall of pump barrel, the lower side of annular gap is equipped with formation liquid suction port, the lower side of formation liquid suction port is annular throat, the lower side of annular throat is equipped with diffusion chamber, the bottom of diffusion chamber is equipped with pump core support seat, the lower side of diffusion chamber is equipped with mixed liquid outlet, diffusion chamber is communicated with mixed liquid discharge chamber.The beneficial effect is: because adjustment reduces the overall density of low-density floating pump core, the power hydraulic pressure and the amount of low-density floating pump core can be reduced, and the operation cost is reduced;In addition, the structure of the low-density floating pump core of the present application is simple, and the annular jet flow structure is formed between the pump barrel, which not only increases the drainage liquid volume, but also makes the working condition of the suction medium more extensive, and the manufacturing cost is also lower.