524results about How to "Improve atomization effect" patented technology

The invention discloses rapid die casting equipment for aluminum alloy die castings, and relates to the technical field of metal die casting. A first channel is formed in a die plate and an ejector rod, and a spray hole communicating with the first channel is formed in the ejector rod; according to the device, the mold release agent can be sprayed to the relatively-closed die-casting cavity in a mold closing state, the comprehensive uniformity of the mold release agent during adhesion is improved, the demolding effect after a die casting is formed is improved, the mold release agent is sprayed in the relatively-closed die-casting cavity, and the mold release effect is improved. According to the die-casting mold core, the release agent can be prevented from escaping outwards, the surrounding environment can be protected easily, waste of the release agent can be avoided, energy-saving, environment-friendly, green and efficient die-casting production is achieved, meanwhile, the spraying holes are formed in the cylindrical face of the end of the ejector rod, the spraying holes cannot be exposed when the ejector rod retracts into the die core, and the die-casting mold core is more environment-friendly. And interference to die-casting production due to the fact that the spraying holes are exposed in the die-casting cavity can be avoided.

The invention relates to the technical field of temperature and pressure reduction, and provides a temperature and pressure reducer provided with a rapid limiting structure and convenient to install, which comprises a valve body, a temperature and pressure reducing mechanism, a temperature and pressure reducing mechanism, a pressure reducing mechanism and a pressure reducing mechanism, and is characterized in that the valve body comprises a main valve module and a pilot valve module; the main valve clack rotates and moves up and down according to the pressure, the number of the throttling holes facing the steam inlet is changed, the size of the throttling holes facing the steam inlet is adjusted, and output steam is more stable and more accurate; desuperheating water is input into the main valve clack through the flow guide pipe through the booster pump and sprayed into high-pressure steam flowing in from the steam inlet through the spray head, so that the desuperheating water and the high-pressure steam are mixed more evenly, and the atomization effect is improved. The sliding sleeve is driven by the main valve clack to move downwards, the nozzle area of the spray head is reduced, and therefore the amount of attemperation water is rapidly reduced, rapid limiting is achieved, and the situation that due to excessive attemperation water, evaporation is incomplete, temperature adjustment is inaccurate, and the attemperation effect is affected is prevented.

The invention provides a cold starting method of an engine and a vehicle, the method is applied to the field of vehicles, the engine comprises a direct injection nozzle and an air channel injection nozzle, and the method comprises the steps that the current temperature of cooling liquid in the engine of the vehicle is obtained; under the condition that the current temperature is smaller than or equal to a preset temperature threshold value, the current rotating speed of the engine is obtained, and based on the current temperature of the cooling liquid and the current rotating speed of the engine, the first target fuel injection quantity proportion between fuel injection quantities of a direct injection nozzle and an air channel injection nozzle of the engine during fuel injection is determined; and controlling the direct injection nozzle and the air passage injection nozzle to perform fuel injection according to the first target fuel injection quantity proportion so as to control the cold start of the engine. The method can help the engine complete cold starting as soon as possible, and the success rate of cold starting of the engine is increased.

The utility model belongs to the technical field of atomizers, and discloses an atomizing nozzle and an atomizer, the atomizing nozzle comprises a nozzle shell and a nozzle main body, the nozzle shell is provided with an atomizing cavity, an atomizing hole communicated with the atomizing cavity and the outside, and a vent hole communicated with the atomizing cavity and an air source; the first end of the nozzle body is arranged in the atomization cavity, a flow channel penetrating through the nozzle body is formed in the nozzle body, a liquid outlet of the flow channel is formed in the first end of the nozzle body and right faces the atomization hole, and a plurality of flow guide grooves are formed in the first end of the nozzle body at intervals in the circumferential direction. The multiple flow guide grooves extend to the first end face of the nozzle body, the extension lines of the flow guide grooves intersect at a point a, the first end face of the nozzle body is matched with the inner surface of the nozzle shell to form flow guide gaps, and the extension lines of the flow guide gaps intersect at a point b. The point a and the point b are not overlapped. The atomizing nozzle can atomize a medium for three times, and the atomizing effect is good.

The invention relates to the technical field of dust falling devices, and discloses a building construction dust prevention and falling device convenient to move, which comprises a base, a push rod is fixedly connected to the top of the base, a water tank is fixedly connected to the top of the base, a water pump is fixedly mounted at the top of the water tank, and a connecting shaft is rotatably connected to the inner wall of a fixing plate. Before humidification, a worker can rotate a rotary disc to adjust a sprayer, the humidification and dust falling range of the sprayer is enlarged, the contact opportunity of particles and water mist is increased, the dust falling effect is improved, and the practicability is high. When moving humidification is carried out, the reciprocating sliding groove drives the sprayer to move and spray, the spraying range is larger, the situation that dust falling is not carried out in too many blind areas is avoided, the efficiency and quality of dust falling operation are improved, it is guaranteed that water mist is evenly covered, and resources are saved.

The invention relates to the field of motor vehicle exhaust purification, and particularly discloses an environment-friendly low-temperature vehicle tail gas treatment fluid and a preparation method thereof. The environment-friendly low-temperature vehicle tail gas treatment liquid is prepared from the following raw materials in percentage by weight: 32.5% of vehicle-grade high-purity urea, 3 to 5% of polyethylene glycol, 2 to 3.5% of glycerol, 5 to 6.5% of octadecanol polyoxyethylene ether, 6.5 to 10% of bacterial cellulose aerogel nano powder and the balance of ultrapure water. The tail gas treatment liquid is safe to use, lower in freezing point, suitable for being used in winter in northern cold regions and better in tail gas treatment effect.

The invention discloses an atomization dust falling device for construction engineering construction, and relates to the technical field of atomization dust falling, and the atomization dust falling device comprises a moving base, a water tank and a water pump are arranged in the moving base, four damping wheels are arranged at the bottom of the moving base, and a rotating mechanism is fixedly connected to the upper portion of the moving base; according to the atomization device, the oscillation cavity is formed in the atomization nozzle, the atomization nozzle can utilize the oscillation effect generated when high-pressure water passes through the oscillation cavity to refine water into smaller fog drops, and therefore the atomization effect is effectively improved; and a second adjusting mechanism is further arranged on one side of the atomizing nozzle, the atomizing nozzle can be driven to rotate through the second adjusting mechanism, and therefore the spraying angle of the atomizing nozzle is adjusted to form conical water mist to surround the dust, and the purpose of efficiently restraining the dust is achieved.

The utility model relates to the technical field of condensers, in particular to a condenser water replenishing system which comprises a condenser water replenishing pipeline (4), a condenser (2), a heat supply network water return pipeline (5) and a water-water heat exchanger (1). A water outlet of the heat supply network water return pipeline (5) is connected with a shell side water inlet of the water-water heat exchanger (1); a water outlet of the condenser water replenishing pipeline (4) is connected with a pipe side water inlet of the water-water heat exchanger (1); a pipe side water outlet of the water-water heat exchanger (1) is connected with a throat part of the condenser (2); heat supply network return water on the shell side of the water-water heat exchanger (1) exchanges heat with condenser replenished water on the pipe side of the water-water heat exchanger (1) so as to heat the condenser replenished water. According to the water supplementing system for the condenser, the temperature of supplemented water of the condenser is increased through heat supply network return water, precipitation of the dissolved oxygen effect is enhanced, the dissolved oxygen content in condensed water is reduced, and corrosion to pipelines and equipment is greatly reduced.

The invention discloses a double-adsorption type solid-liquid two-phase flow dust removal device, belongs to the technical field of wet spraying dust removal, and aims to solve the problems of high water consumption, low dust removal efficiency and poor dust removal effect of coal in the prior art. The device comprises a magnetite powder suspension atomization unit, a water spraying nozzle, a dust removal microporous membrane, an electromagnet pore plate and an axial flow fan which are sequentially arranged in the flowing direction of dust airflow. The water spraying direction of the water spraying nozzle faces the dust removal microporous membrane, and spraying water sprayed by the water spraying nozzle forms a water membrane on the dust removal microporous membrane; in the dust removal process, the electromagnet pore plate is electrified, so that magnetite powder is adsorbed on the surface, back to the electromagnet pore plate, of the dust removal microporous membrane; after dust removal is completed, the electromagnet pore plate is powered off, so that the magnetite powder is separated from the surface, back to the electromagnet pore plate, of the dust removal microporous membrane. The device can be used for coal dust removal.

The invention discloses an intelligent air circulation fan, and relates to the technical field of circulation fans, the intelligent air circulation fan comprises an outer cylinder mechanism, the outer cylinder mechanism comprises an outer cylinder, one port of the outer cylinder is expanded outwards, the lower side of the outer cylinder is provided with a support assembly, the other port of the outer cylinder is in butt joint with a main cylinder mechanism, the main cylinder mechanism comprises a main cylinder, and the main cylinder is fixedly connected with the outer cylinder through a flange; an impeller assembly is arranged in the main cylinder mechanism, a framework assembly is arranged in an externally-expanded port of the outer cylinder and comprises a hollow water bin, bin columns used for supporting are evenly and fixedly connected between the outer side of one end of the water bin and the outer cylinder at equal intervals, and the outer side of the other end of the water bin is fixedly sleeved with a cover cylinder; the two sides of the lower inner wall of the cover cylinder are fixedly connected with bottom tables correspondingly, motors fixedly connected with the bottom tables are embedded and inserted into the cover cylinder, the impeller assembly comprises a shaft cylinder mechanism and a fan mechanism, and according to the intelligent air circulation fan, the atomization effect is improved, and the air wetting effect is remarkably improved.

The utility model discloses a circulating fluidized bed boiler furnace outlet horizontal flue ash removal device which comprises a furnace, a horizontal flue, a cyclone separator, a high-temperature superheater, a low-temperature superheater, a coal economizer and an ash removal device, one end of the ash removal device is arranged at the bottom of the horizontal flue, and the other end of the ash removal device is arranged at the lower end of the coal economizer. The ash removal device comprises a primary air pre-heater, a conveying air pipe, a conveying air branch pipe and an ash removal module, and the ash removal module is arranged at the bottom in the horizontal flue and comprises a main air pipe, a branch air pipe, a connecting rod and a small air cap. A small part of primary air is led to the bottom of the horizontal flue at the hearth outlet through the bypass pipeline of the primary air pre-heater and enters the ash removal device, accumulated ash accumulated at the horizontal flue at the hearth outlet is loosened and fluidized through the small air cap and then enters the cyclone separator along with flue gas, and therefore the purpose of removing the accumulated ash in the horizontal flue at the hearth outlet is achieved. After accumulated ash is cleaned, the smoke flow speed of a hearth outlet is reduced, and the efficiency of the boiler is improved.

The invention provides a livestock and poultry breeding medicine atomization device, and belongs to the technical field of atomization devices.The livestock and poultry breeding medicine atomization device comprises an installation support, a water tank, a booster pump, a pipeline and a sprayer, the sprayer comprises an atomization pipe, a nozzle, a water inlet connector, a water outlet connector and a fixing frame, and the livestock and poultry breeding medicine atomization device is characterized by further comprising a flow stabilizing mechanism, an adjusting mechanism and a rotating mechanism; through the arrangement of the flow stabilizing mechanism, when the pipeline leaks water and releases pressure due to cracks caused by aging or other factors, the impact force of water flow is reduced, the first elastic piece elastically resets, the bottoms of the elastic plate and the movable plate integrally move in the direction away from the inner wall of the connecting ring, the cross section is reduced, and therefore the flow speed of liquid is increased; the liquid flow rate is kept stable, uneven fog drops formed by spraying liquid when the flow rate is too low are avoided, and the spraying uniformity is improved.

The utility model discloses an electrostatic atomization soilless culture device which comprises a water storage tank (1), an electrostatic atomization device (4), a water pump (5), a liquid medicine tank (6), a high-voltage power supply device (7), a temperature and humidity sensor (8), a main body (9), a filter screen (10), an electronic controller (11), a magnetic field generating device (13) and a top cover (14). An electrostatic atomization device, a water pump, a liquid medicine box, a high-voltage power supply device, a high-voltage generator and an electronic controller are installed on the top cover, the water pump is connected with the water storage tank and the liquid medicine box through water pipes, a temperature and humidity sensor and a magnetic field generating device are installed in the body, a filter screen is installed on the lower portion in the body, and a plurality of channel openings are formed in the side wall of the body. The device is used for storing plants. The electrostatic atomization technology is used for atomizing liquid into charged tiny liquid drops, absorption of plant rhizomes is promoted, the growth environment needed by plants is detected, water and liquid medicine are provided in time, and the growth efficiency of the plants is improved.

The invention relates to an andrographolide nanocrystal suspension, preparation thereof and application of the andrographolide nanocrystal suspension in preparation of an andrographolide nanocrystal dry powder inhaler with an anti-inflammatory effect. The andrographolide nanocrystal suspension contains a) an active component andrographolide nanocrystal; b) a stabilizer; wherein the content of andrographolide in the suspension is 0.1%-30%, and the content of the stabilizer is 0.1%-5%. According to the andrographolide nanocrystal dry powder inhalant and the preparation method thereof, andrographolide nanocrystals are prepared into micro powder by adopting a spray drying technology, and auxiliary material addition and a preparation process are optimized, so that the andrographolide nanocrystal dry powder inhalant with good inhalation performance is successfully prepared and directly acts on the respiratory tract through a pulmonary drug delivery system, the administration dosage is reduced, and the inhalation effect is improved. Higher lung local concentration is obtained, the first-pass effect of the liver is avoided, meanwhile, the efflux effect of p-glycoprotein is avoided as much as possible, and then the bioavailability is improved; the technical problem that the bioavailability is poor due to the fact that andrographolide is excreted through p-glycoprotein and rapidly absorbed and metabolized in the intestinal tract is solved.

The invention discloses a water vector high-efficiency energy-saving cooling tower control method and system, and relates to the technical field of water vector high-efficiency energy-saving cooling towers, and the method comprises the following steps: uniformly arranging a plurality of humidity monitoring points in a surrounding influence environment of a water vector high-efficiency energy-saving cooling tower, and monitoring the humidity change around the cooling tower in real time; real-time data are collected through humidity monitoring points. Humidity monitoring points are evenly arranged around the water vector efficient energy-saving cooling tower, humidity change can be monitored in real time, the condition of large-amplitude humidity change can be recognized in time, after the large-amplitude humidity change is recognized, the regulation and control frequency of the rotation rate of the water vector machine core is intelligently regulated and controlled through the humidity change frequency, and the water vector machine core is controlled to rotate. The response capability and adaptability of the cooling tower are improved, the rotation rate of the water vector machine core is further dynamically adjusted based on the humidity value obtained in real time, and it can be ensured that the cooling tower always keeps the optimal cooling effect under various environmental conditions.

The invention provides a dust falling device, which comprises a water supply pipeline, a dust falling device, a dust removal device, a dust removal device, a dust removal device, a dust removal device and a dust removal device, and is characterized in that the water supply pipeline is provided with a first water inlet and a water outlet; the air supply pipeline is provided with a first air inlet and an air outlet, and a plurality of second branch pipes are arranged at the air outlet; and each spray head communicates with one first branch pipe and one second branch pipe, resonators are arranged in the spray heads, and the resonators can mix liquid in the first branch pipes and gas in the second branch pipes to form water mist and spray the water mist out. According to the technical scheme, the problem that in the prior art, no air source exists in a dust falling device, and the atomization effect of the dust falling device is poor, so that the dust falling effect is poor can be solved.

The invention relates to the technical field of diesel generator control, in particular to a diesel generator set fuel injection control method based on self-adaptive control, which comprises the following steps: acquiring working condition data of a diesel generator set; according to the collected compression pressure fluctuation data, a compression fluctuation model is established, and the compression fluctuation model identifies fluctuation amplitude characteristics, frequency characteristics and wave crest moment characteristics in the compression process in real time; preliminarily calculating the oil injection time, and generating a preliminary oil injection time control signal; and adjusting the preliminarily calculated oil injection time in real time, so that the oil injection time is matched with the optimal stage of the compression fluctuation, and the oil injection time is matched and optimized with the wave peak time characteristics. According to the method, fuel injection control under different rotating speeds and load conditions is effectively improved, the fuel utilization efficiency of the diesel engine is improved, emission is reduced, and the service life of the engine is prolonged.

The invention provides an anti-surge and temperature-regulating system for a propylene compressor. The anti-surge and temperature-regulating system comprises the propylene compressor, a first-section inlet separator, a second-section inlet separator, a propylene condenser, a propylene receiving tank, a propylene flash tank, a propylene subcooler, an acid gas removal unit, two anti-surge valves and two temperature-regulating valves, and the propylene compressor is communicated with the first-section inlet separator, the second-section inlet separator and the propylene condenser. According to the temperature adjusting valve, the propylene atomization effect is optimized through the efficient spiral nozzles which are arranged up and down, and the optimal spraying amount of liquid-phase propylene under different pressures, flows and liquid level heights is ensured. The propylene refrigeration and low-temperature methanol washing linkage driving mode guarantees the suction flow and pressure of the inlet of the first section of the propylene compressor, reduces the opening degree of an anti-surge valve, and ensures the stable operation of the propylene compressor. And the design reduces the start-up feeding time, reduces the methanol loss and steam consumption, and improves the economic benefit and operation efficiency of the system.

The invention relates to the technical field of atomization, in particular to a composite atomization core and a preparation method thereof. Comprising a porous ceramic core material and an inorganic fiber aerogel layer coating the outer side of the porous ceramic core material. The composite atomizing core has super-strong tar locking performance, tobacco tar leakage can be avoided, and the atomizing effect is improved. Meanwhile, the composite atomizing core has excellent high-temperature stability and chemical stability, is not prone to oxidation, corrosion and core pasting, and can effectively solve the problems that a traditional atomizing core is poor in heat resistance and chemical stability. Meanwhile, the composite atomizing core is high in mechanical strength and not prone to deformation.

The invention relates to the technical field of atomization devices, and discloses carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure, the carbonyl iron powder atomization pyrolysis equipment comprises a collector, the collector is located at the bottom end of the inner wall of a pyrolysis machine and used for collecting iron powder particles, and an atomization nozzle is located above the collector. According to the invention, by arranging the adjusting piece and the blades, high-speed airflow rotates to form a special flow field, liquid hydroxyl iron is more fully mixed with gas under the action of centrifugal force and the rotating airflow after entering the flow field, and the gas can more uniformly apply acting force to liquid due to the full mixing of the gas and the liquid, so that liquid drops are further refined, and the atomization quality is improved; the edge effect that liquid drops are distributed unevenly may occur during spraying in the edge area, the liquid drops in the edge area can be distributed more evenly through rotating airflow generated by the blades, the difference between the spraying amount and the liquid drop distribution of the edge area and the center area is reduced by adjusting the motion trails of the airflow and the liquid drops, and the overall spraying uniformity is improved.

The invention belongs to the technical field of medical instruments, and discloses a handheld atomizer which comprises a main machine, an atomizing cup, an atomizing sheet assembly and an atomizing cover, the bottom of the atomizing cup is provided with a first matching structure, and the atomizing cup can be detachably matched with the top of the main machine through the first matching structure; the atomizing cup is provided with a liquid medicine containing cavity, a liquid medicine inlet and a liquid medicine outlet, the liquid medicine inlet and the liquid medicine outlet are communicated with the liquid medicine containing cavity, the liquid medicine outlet can be closed by the atomizing piece assembly, the spraying cover is provided with a mist outlet nozzle and a cover shell part, the cover shell part is provided with a second matching structure, and the spraying cover can be detachably matched with the atomizing cup through the second matching structure. On one hand, when the atomizing sheet assembly is replaced, the atomizing cover is taken down to reduce the operation steps of replacing the atomizing sheet by a user, and on the other hand, the atomizing cover can also perform dust prevention and protection on the atomizing sheet assembly to increase the cleanliness of the atomizing sheet assembly, reduce the replacement frequency of the atomizing sheet assembly and improve the use experience of the user.

The invention belongs to the technical field of fluid magnetization, and particularly relates to a fluid magnetization treatment method and system.The fluid magnetization treatment system comprises a controller and a processor, the processor comprises a shell, two connectors are installed on one side of the shell, an adapter is installed on the other side of the shell, a coil bin is formed in the inner wall of the shell, and a coil is arranged in the coil bin; the coil is electrically connected with a controller through an adapter, a U-shaped oil way pipe is installed in the shell, and fuel flows in the oil way pipe. Fuel oil is magnetized through an alternating magnetic field, fuel oil molecules are attracted to vibrate along with alternating of the magnetic field, the internal energy of the fuel oil molecules is improved, the fuel oil molecules are in a quasi-excitation state, and therefore the combustion efficiency and the combustion degree of the fuel oil are improved, meanwhile, the distance between the fuel oil molecules in high-frequency vibration is increased, atomization is more sufficient during atomization, combustion is facilitated, and the fuel oil is more environmentally friendly. And the combustion efficiency of the fuel is further improved.

The invention discloses an aero-engine fuel nozzle flow channel liquid abrasive flow finishing machining method which comprises the following steps that S1, a fuel nozzle is installed in an abrasive flow clamp, an upper flow equalizing grinding core is arranged in an inner hole of the fuel nozzle, and a lower flow equalizing grinding core is arranged at the lower end of the fuel nozzle; s2, liquid abrasive particle flow is used for machining the fuel nozzle, and the machining time is 40-60 s; the processing pressure is 7-8 MPa; s3, part cleaning is conducted, specifically, ultrasonic cleaning is conducted for 45-50 min, and the equipment frequency is 50-60 Hz; and S4, performance testing is conducted on the machined part. The liquid abrasive particle proportion and machining parameters suitable for the nozzle of the fuel nozzle are greatly improved, the surface quality of the nozzle and the performance of the fuel nozzle are greatly improved, the percent of pass of the spray cone angle of the fuel nozzle reaches 100%, the percent of pass of distribution unevenness is improved to 60% from 0, the surface smoothness consistency is good, and the product quality is improved. The atomization effect of the fuel nozzle is effectively improved, and the ignition performance of the fuel nozzle is guaranteed.

The utility model discloses a spray drying device for white carbon black processing, and relates to the technical field of white carbon black processing devices. The device comprises a drying cylinder, a feeding atomization mechanism is arranged on the upper side of the drying cylinder, an exhaust pipe is fixedly installed on the side wall of the drying cylinder, a conical discharging pipe is fixedly installed at the lower end of the drying cylinder, a supporting mechanism is fixedly installed on the side wall of the drying cylinder, and a discharging control mechanism is arranged on the supporting mechanism. And one side of the discharging control mechanism is arranged in the conical discharging pipe, a hot air inlet mechanism is arranged on one side of the drying cylinder, a stirring rotating shaft is rotationally installed on the drying cylinder, and a driving motor is arranged on the upper side of the drying cylinder. According to the utility model, moisture in the accumulated white carbon black is turned out again, so that the white carbon black particles are continuously dried by hot air, and the drying effect of the white carbon black particles obtained after spray drying is further ensured and improved.

The invention provides a device for controlling and collecting flying dust during cutting of plates on a construction site. The device comprises a three-way tank body, a hedging mechanism and an atomizing mechanism, a transverse air inlet is formed in the three-way tank body; the hedging mechanism comprises a partition plate, an air flow pipe and a hedging jet head, and the partition plate is fixedly arranged at the air inlet; when flying dust airflow enters from the air inlet, the flying dust airflow can enter the upper side air opening structure and the lower side air opening structure, the flying dust airflow entering the lower side air opening structure can be transmitted to the hedging jet head through the airflow pipe, and the airflow exhausted by the hedging jet head collides with the flying dust airflow flowing into the upper side air opening structure. And then the upper spraying head and the lower spraying head conduct spraying again to adsorb the flying dust airflow, due to the fact that the flowing speed of the flying dust airflow is slowed down, the atomization particles can better adsorb flying dust particles in the flying dust airflow, the atomization effect is improved, and the purpose of improving the flying dust treatment effect is achieved.

The utility model relates to the field of atomization degerming, and discloses an atomization degerming module suitable for a cleaning machine, which comprises a power assembly, a water tank assembly and an atomization head, an atomization channel, a water flow channel and an airflow channel are arranged in the atomization head, one end of the atomization channel is communicated with the outside, and the other end of the atomization channel is communicated with the water tank assembly. The other end of the air inlet is communicated with the water flow channel and the air flow channel; the water tank assembly comprises a tank body, a water way two-way component is arranged in the tank body, and an inner cavity of the tank body is communicated with the water flow channel through the water way two-way component. The power assembly comprises a main shell, a power source is installed in the main shell, and the output end of the power source communicates with an inner cavity of the box body and the airflow channel through an air path three-way component. The two air paths are used for pressurizing the water tank and forming high-speed airflow to blow away liquid, and the atomization device has the advantages that the atomization efficiency is improved, the atomization stability is guaranteed, and the use convenience is improved.

This utility model relates to a spray gun capable of multi-stage atomization, belonging to the technical field of multi-stage atomization spray guns. The multi-stage atomization spray gun includes: a spray pipe with a nozzle threadedly connected to its inner wall; and an anti-backflow mechanism, comprising two sealing gaskets slidably connected to the inner wall of the nozzle, and two mounting blocks fixedly connected to the inner wall of the nozzle, with the surface of the sealing gaskets slidably connected to the inner wall of the mounting blocks. Through the cooperation of springs, sealing gaskets, and mounting blocks, unidirectional limiting of the air holes within the nozzle is achieved, thereby preventing the solution inside the nozzle cavity from flowing into the air holes, ensuring the air intake of the nozzle cavity, and thus guaranteeing the atomization effect. The cooperation of a first sealing ring and a second sealing ring seals the connection between the nozzle and the spray pipe, preventing leakage at the connection and improving the atomization effect of the spray gun.

The aviation kerosene self-preheating type rotor engine cooling structure comprises a rear end cover, an air cylinder body and a front end cover, the rear end cover and the front end cover are arranged on the two sides of the air cylinder body respectively, the air cylinder body is provided with an air cylinder body, a cooling oil channel is formed in an interlayer of the inner wall of the air cylinder body, and the cooling oil channel is arranged in a hot arc area of the air cylinder body. The hot arc area of the cylinder block body is in an arc shape, an oil inlet and an oil outlet are formed in the two ends of the cooling oil channel respectively, the oil inlet is communicated with a fuel tank through a first oil pipe, and the oil outlet is communicated with a fuel pump through a second oil pipe. Serious quality problems of sealing failure, cylinder score and the like caused by overhigh thermal load and large temperature difference between a hot arc region and a cold arc region of the air-cooled rotor engine are effectively solved, and the service life of the air-cooled rotor engine is prolonged.

The invention discloses a combustion chamber with a centrifugal ignition nozzle, which comprises a casing shell, one end of the casing shell is provided with an air inlet convenient for introducing high-pressure air, the other end of the casing shell is connected with the tail end of a high-pressure turbine guider, and a flame tube is connected in the casing shell. The head end of the high-pressure turbine guider is arranged in the cartridge receiver shell and connected with the flame tube, an ignition nozzle extending into the flame tube is connected to the cartridge receiver shell and comprises a nozzle mounting seat fixedly connected to the outer side of the cartridge receiver shell, a nozzle rod is fixed to the nozzle mounting seat, one end of the nozzle rod is arranged outside the cartridge receiver shell, and the other end of the nozzle rod is connected with the flame tube. The other end of the nozzle rod extends into the cartridge receiver shell and is connected with the flame tube, the other end of the nozzle rod is connected with a nozzle head, fuel oil is sprayed out from an oil spraying hole of the nozzle head, and the end, away from the nozzle rod, of the nozzle head enters the flame tube; the atomization effect is good in the engine starting state, and the ignition performance of the engine in the starting state is improved.

The invention discloses a nozzle and an electronic atomization device.The nozzle comprises a mixer and an adapter, the mixer comprises a mixing cavity, a gas gathering cavity and a gas inlet channel, and the gas inlet channel communicates with the gas gathering cavity and is used for inputting external gas into the gas gathering cavity; the mixing cavity is provided with a first air inlet, a second air outlet and a second air inlet, the first air inlet is used for communicating with the atomization mechanism, and the second air inlet is arranged around the first air inlet; the gas gathering cavity is communicated with the first gas inlet and the second gas inlet, aerosol enters the mixing cavity from the first gas inlet, and external gas enters the mixing cavity through the first gas inlet and the second gas inlet and flows to the second gas outlet after being mixed with the aerosol; the adapter comprises a third air inlet and a nose inlet which are oppositely arranged, and the third air inlet is communicated with the second air outlet. By means of the arrangement, the problem that in the prior art, aerosol cannot flow to the air outlet of the nozzle smoothly easily is solved, the aerosol and external air are mixed more sufficiently in the adapter, and waste caused by the fact that a user inhales the aerosol in time is avoided.