59results about How to "Improve flow" patented technology

The application discloses a mold stripping mode, which comprises three steps of positioning, pre-tightening and mold stripping; through the positioning, the first arm and the second arm of a manipulator can cooperate to clamp a sand mold; through the pre-tightening, jacking working pieces press against the manipulator and a bottom plate to overcome the gap between the arms and the sand box in the Z direction; the synchronous action of all the jacking working pieces is favorable for the sand mold to integrally separate from the bottom plate in a relatively horizontal stable state; after the sand mold separates from the bottom plate, the sand mold and a wooden mold are separated, and the sand mold can be easily and quickly lifted by the upward movement of the manipulator. The application also provides a mold stripping device for realizing the mold stripping mode; the mold stripping device comprises a manipulator, the manipulator comprises a hanging beam, a first arm, a second arm, a first support, a second support and jacking working pieces; the jacking working pieces can realize the reliable separation of the sand mold and the bottom plate through pre-tightening and synchronous force; after the manipulator lifts the sand mold, the first support and the second support cooperate to overturn the sand mold, so as to facilitate flow coating, mold closing and other operations.

This application provides a heat dissipation device and electronic device, including: a condenser having an internally vacuumed and sealed cavity; a liquid pipe containing a liquid working fluid, one end of which is connected to the condenser; a compensation chamber having an internally vacuumed and sealed cavity, through which the liquid pipe passes and communicates with the compensation chamber, and a liquid-absorbing core covering the surface of the liquid pipe within the compensation chamber; an evaporator having an internally vacuumed and sealed cylindrical structure, comprising a vapor channel, a first capillary core, and a second capillary core stacked sequentially from the outer wall surface of the cylindrical structure to the central axis, the other end of which penetrates a portion of the evaporator, and the second capillary core covering a portion of the surface of the liquid pipe; a gas pipe, one end of which is connected to the vapor channel, and the other end of which is connected to the condenser; and a heat-conducting plate covering the outer surface of the evaporator. The heat dissipation device and electronic device provided in this application embodiment at least improve the heat dissipation efficiency of electronic devices.

The utility model discloses a semi-automatic desalting device adopting a peristaltic pump, which comprises a desalting device, the desalting device is composed of a desalting pond, a transmission mechanism, a peristaltic pump mechanism and a filtering mechanism, a base is arranged at the bottom end of the desalting pond, the peristaltic pump mechanism and the filtering mechanism are arranged on the upper side of the base, and the peristaltic pump mechanism and the filtering mechanism are arranged on the base. One end of the filtering mechanism is connected with one side of the bottom end of the desalting pond through a guide pipe, the peristaltic pump mechanism is connected with the filtering mechanism through a guide pipe, the conveying mechanism is composed of a frame, a shaft rod, a motor and a grid conveying belt, the shaft rod is rotationally installed on one side of the bottom end of the desalting pond and at the upper end of the frame, and the grid conveying belt wraps the outer side of the shaft rod. The cleaned and soaked materials can be conveyed upwards along the conveying mechanism, meanwhile, in the soaking process, liquid leading-out and water leading-in are conducted at the same time through the peristaltic pump mechanism, an aqueous solution is driven to flow circularly, and the cleaning effect of the aqueous solution in the desalting pond on the materials is guaranteed.

The application relates to the technical field of vehicle exhaust treatment, and provides an exhaust treatment system and a vehicle. The exhaust treatment system comprises a particle trap and a regeneration device, the regeneration device comprises an oil-gas mixing part, a gas path assembly and an oil path assembly, and a fluid driving part connected between the oil-gas mixing part and the particle trap, and the fluid driving part can drive an oil-gas mixture in the oil-gas mixing part to flow into the particle trap. The exhaust treatment system provided by the application sets one fluid driving part, which can facilitate the smooth flow of exhaust gas and fuel into the oil-gas mixing part, the exhaust treatment system has a simple structure, and the oil-gas mixture can smoothly flow to the downstream, which is helpful for the combustion regeneration of the particle trap, has a good exhaust treatment effect, and can reduce the emission of pollutants.

This utility model relates to the field of bearing cage technology, and provides a high-speed, high-temperature resistant nylon cage for deep groove ball bearings, including a high-temperature resistant cage body; pockets equally spaced at the top of the high-temperature resistant cage body, with oil reservoirs equally spaced on the inner wall of the pockets, the three oil reservoirs being interconnected by connecting grooves, and a ball bearing rotatably connected to one end of the inner wall of each oil reservoir; symmetrically arranged oil injection holes on both sides of the bottom of the high-temperature resistant cage body, the top of each oil injection hole communicating with the interior of one of the oil reservoirs; and a sealing assembly assembled inside the oil injection holes. The high-speed, high-temperature resistant nylon cage for deep groove ball bearings provided by this solution utilizes rolling balls to change the contact between the bearing rollers and the inner wall of the pockets from surface contact to multi-point contact, reducing contact friction. Simultaneously, the oil reservoirs store a certain amount of lubricating oil, thus providing long-term effective lubrication of the bearing rollers and further reducing rotational friction.

The utility model relates to the technical field of roof greening, in particular to a self-drainage integrated roof greening module which comprises a plurality of assembly plates, the two sides of the top faces of the assembly plates incline downwards, a plurality of planting grooves are formed in the two sides of the top faces of the assembly plates, the top faces of the planting grooves are flush with each other, water channels are installed at the low positions of the two sides of the assembly plates, and the water channels are communicated with the planting grooves. Clamping grooves and plugs are arranged on the two sides of the outer portions of the water channels respectively, a plurality of first holes are formed in the side walls of the water channels, a plurality of second holes are formed in the side walls of the planting grooves, and the positions of the second holes correspond to the positions of the first holes respectively. The utility model has the advantages that the two sides of the top surface of the assembly plate are inclined downwards so as to facilitate the flowing of accumulated water, the water channels are arranged on the two sides of the assembly plate, the accumulated water flowing down from the assembly plate is gathered into the water channels for uniform drainage, the accumulation of sewage is avoided, and a plurality of placing grooves which are uniformly arrayed are arranged on the two sides of the top surface of the assembly plate.

The utility model relates to the technical field of lime kilns, in particular to a double-chamber lime kiln with good smoke discharge capacity, which comprises a lime kiln body, a gas pipeline, a smoke pipeline and an air pipeline, the gas inlet end of the gas pipeline is connected with the side wall of the lime kiln body, and the smoke pipeline connecting end of the smoke pipeline is connected with the side wall of the lime kiln body. The air inlet end of the air pipeline is connected with the side wall of the lime kiln body, the smoke pipeline connecting end is higher than the coal gas inlet end, and the air inlet end is lower than the coal gas inlet end. According to the utility model, through the position design of each pipeline on the lime kiln body, the gas inlet end is positioned above the air inlet end, so that the uniform mixing of gas and air is facilitated, the phenomenon of insufficient local combustion is reduced, better mixing of air and gas can be realized, and the combustion efficiency is improved; meanwhile, the flue gas pipeline connecting end is higher than the coal gas inlet end, so that flue gas can be smoothly discharged, and flue gas backflow is reduced.

The invention relates to the technical field of fuel cells, and discloses a fuel cell humidifier with a novel structure, the fuel cell humidifier comprises a main body shell and a bundling shell, the bundling shell is assembled on an internal end plate of the main body shell, and the bundling shell is provided with an internal slide block structure; the internal sliding block structure is in sliding fit with an end plate in the main body shell so as to adjust the size of the bundling shell, a hollow fiber membrane tube is arranged in the bundling shell, the hollow fiber membrane tube is fixed with the main body shell through a pouring sealant surface, two ends of the main body shell are detachably connected with end covers, and the end covers are used for being connected with a dry gas path. A pressure regulating valve is installed on the main body shell and used for balancing the pressure difference of a dry path and a wet path, and a connector sliding block is arranged at a connector of the main body shell and is in sliding connection with the connector of the main body shell so as to adjust the direction of the connector of the wet path. The humidifier is used for solving the problems that an existing humidifier is insufficient in anti-compression and anti-impact strength, poor in plasticity and limited in adaptability, and the use stability is affected by differential pressure fluctuation of a dry path and a wet path.

The invention provides an exotesta removing device, and relates to the technical field of suaeda heteroptera exotesta removing. The driving assembly is mounted at the top of the mounting assembly; the elastic pressing assembly is mounted on the driving assembly; the testa removing assembly is mounted on the elastic pressing assembly; the second mounting plate block is arranged on the right side of the first mounting plate block, a positioning groove is formed in the left side of the second mounting plate block, and two second bolt mounting holes are further formed in the second mounting plate block; the circular mounting shaft is rotationally mounted in the mounting plate I; according to the suaeda heteroptera seed coat removing device, the grinding effect on the suaeda heteroptera outer seed coat is achieved, automatic falling of the suaeda heteroptera outer seed coat is achieved, a hollow removing cylinder makes elastic contact with suaeda heteroptera seeds under the action of two second reset springs, suaeda heteroptera seeds are prevented from being damaged, and the suaeda heteroptera outer seed coat removing effect is improved; the problem that the suaeda heteroptera seeds are easily damaged due to the fact that the manual beating or grinding force is not easy to control is solved.

The utility model discloses an electric steamer which comprises a base, a steamer assembly and an external water tank, the steamer assembly and the external water tank are arranged on the base, the base comprises a water storage cavity, a steam generation cavity and a heating piece arranged at the bottom of the steam generation cavity, and a separation rib is arranged between the water storage cavity and the steam generation cavity. The external water tank comprises a water supplementing cavity, a two-way water passing channel is arranged between the water storage cavity and the water supplementing cavity, and a one-way water passing channel allowing water flow to flow from the water supplementing cavity to the steam generating cavity is arranged between the water supplementing cavity and the steam generating cavity. A floater is arranged in the one-way water passing channel and floats along with the water level so as to control on-off of the one-way water passing channel. According to the electric steamer, pollutants entering the one-way water passing channel can be effectively reduced, so that the influence of the pollutants on the floating of the floater is reduced, and the service life of the floater is effectively prolonged.

The utility model provides a kind of temporary storage device of cream, belong to cream storage technical field, including storage box, connection box is provided on the side surface of storage box, stirring mechanism is provided on storage box and connection box, stirring mechanism includes transmission part, spiral piece for realizing lifting feeding is provided on transmission part, it is also provided with for stirring cream mixing frame, transmission part is used to realize the rotation of spiral piece and mixing frame, the utility model can guarantee the full mixing of cream, avoid the situation that bottom adhesion appears, guarantee the storage quality of cream.

The utility model relates to the technical field of injection molding equipment, and discloses a double-color mold co-injection hot nozzle valve needle structure which comprises a hot runner plate, the upper surface of the hot runner plate is fixedly connected with a splitter plate, the upper surface of the splitter plate is fixedly connected with a panel, the upper surface of the panel is fixedly connected with a main nozzle, and the upper surface of the main nozzle is fixedly connected with a hot runner. A hot nozzle piece is arranged at the bottom of the hot runner plate, a threaded cylinder is in threaded connection with the bottom of the hot nozzle piece, a discharging nozzle is fixedly connected with the bottom of the threaded cylinder, an electric heating wire is fixedly connected into the inner wall of the discharging nozzle, a front filter disc is fixedly connected into the discharging nozzle, and a rear filter disc is arranged below the front filter disc. According to the hot nozzle piece, the threaded cylinder, the discharging nozzle, the electric heating wire, the front filter disc, the rear filter disc and the flow guide unit are matched, so that materials passing through the hot nozzle piece can be subjected to flow guide extrusion, the mixing uniformity of the materials is further improved, and the problem that the production quality of products is affected due to the fact that the plastic materials are mixed uniformly is solved.

This utility model belongs to the field of helmet technology, and specifically relates to a helmet, including a main body and an outer shell covering the outside of the main body. The main body has an inner cavity. The front side of the outer shell has a first air inlet, and the front side of the main body has a second air inlet communicating with the first air inlet. Air can enter the inner cavity through the first and second air inlets. A support frame is provided at the top of the inner cavity, and a cushioning pad is provided on the support frame. The support frame and / or the cushioning pad can rest against the top of the user's head, thereby forming an airflow channel between the top of the inner cavity and the user's head. The purpose of this utility model is to provide a helmet with a simple structure, good heat dissipation, and good comfort.

A method for coproducing hydrofluorocarbons, the method involving preheating a mixture of a chlorinated alkene and hydrogen fluoride and then introducing the mixture into the top of a reactor, while also introducing 1,1,1,2,3,3-hexafluoropropylene and dichloromethane into the middle portion of the reactor for a reaction to obtain a reaction product at an outlet of the reactor, wherein the reactor is divided into three to six sections, each of which is filled with a catalyst; and separating the reaction product to obtain a plurality of hydrofluorocarbon products, respectively. The method has advantages such as a high yield, a good selectivity, and a low energy consumption.

The present application belongs to the technical field of water pump, and relates to a pump capable of increasing flow and pressure, comprising a pump body, a water inlet and a water outlet arranged on the pump body, an impeller and a water outlet cover arranged in the pump body and used for guiding pressurized fluid to the pump cavity, the water inlet and the inlet of the impeller being communicated through a flow channel body, the flow channel body comprising a throat pipe and a nozzle, the water outlet and the nozzle being respectively communicated with the pump cavity, the outer side of the nozzle being provided with a conversion turbine driven by a power device in two directions, the water pump being in a flow-increasing mode and a pressure-increasing mode respectively when the conversion turbine rotates in different directions, the conversion turbine driving fluid to flow in the opposite direction of the nozzle in the flow-increasing mode, and the conversion turbine driving fluid to flow in the direction of the nozzle in the pressure-increasing mode. The pump capable of increasing flow and pressure can select a high-flow mode or a high-lift mode according to actual requirements.

This invention discloses a gas-liquid separator and separation method suitable for high-pressure air. The gas-liquid separator mainly consists of a hydrocyclone blade assembly, an inlet pipe, a left shell, a right shell, a water-blocking ring, an outlet pipe, an intermediate pipe, and a drain nozzle. The hydrocyclone blade assembly consists of a stator hydrocyclone blade, a moving hydrocyclone blade, a bearing, a bushing, and a nut. The moving hydrocyclone blade is mounted on the shaft of the stator hydrocyclone blade via the bearing and bushing. After the high-pressure humid air passes through the hydrocyclone blade assembly, the saturated droplets are thrown to the wall of the inlet pipe by the swirling action, and then discharged through the drain nozzle after passing through the labyrinthine path between the inlet pipe and the shell. The dry air after liquid separation is discharged through the outlet pipe. This invention generates secondary swirling through the moving hydrocyclone blade in the hydrocyclone blade assembly, which causes secondary separation of droplets in the air that were not separated. The labyrinthine path makes it difficult for the separated droplets to flow back, and the dry air improves its original flow direction after secondary swirling, resulting in less air leakage and achieving high dehumidification and separation efficiency.

The utility model discloses a vacuum paper tape filter for automobile coating degreasing liquid pretreatment, including the box, be provided with the steel mesh motor on the box, drive the steel mesh drive mechanism on the steel mesh motor, the steel mesh drive mechanism is used for the conveying operation of paper tape. The utility model discloses through the sewage into the inside of sewage diversion box, can be dispersed in the above steel mesh drive mechanism, and the sewage is dumped on the paper tape, through the vacuum fan suction air in the box, make the pressure reduction of box inside, accelerate the liquid flow of filter cloth on the box, and the negative pressure can greatly improve the delivery volume of medium, and through the formation of a large number of filter cake, thereby improve the use ratio of filter medium, and the filter cake formed constitutes an additional, high -quality filter layer, thereby improved the filtering capacity, promote the filtering efficiency, and the hot air of vacuum fan can make the contaminated filter cloth get dry, and the contaminated particle that sticks on the filter cloth can fall off, thereby fall in the collection box inside and get effective collection.

Embodiments of the present application provide a high-altitude operation hydraulic control system and a high-altitude operation platform, and relate to the field of high-altitude operation equipment. The high-altitude operation hydraulic control system provided by the present application comprises an oil tank, an oil pump, a load end, a proportional reversing valve and a flow valve. The load end has a first inlet and outlet and a second inlet and outlet, and comprises a jib cylinder and a swing cylinder arranged in parallel. The proportional reversing valve is fluidly connected between the load end and the oil pump, and is used to control the on-off of the oil circuit between the jib cylinder, the swing cylinder and the oil pump. The inlet end of the flow valve is connected between the proportional reversing valve and the load end, and the outlet end is connected to the oil tank. The flow capacity of the proportional reversing valve is greater than the working flow of the load end, and the excess flow returns to the oil tank through the flow valve. The high-altitude operation platform provided by the present application comprises the above hydraulic control system. The present application can improve the problem of low control accuracy of the hydraulic control system caused by the hysteresis error of the proportional reversing valve.

The utility model provides a vehicle-mounted umbrella storage device belongs to the technical field of automobile products, the vehicle-mounted umbrella storage device includes heating spare, sealing cover, ventilation spare, shell. In the utility model, the folding umbrella in the first preset state is passed through first inlet and is placed in the shell, water can flow into the shell, avoids the water flow into the car door and pollutes the car door, the ventilation spare blows to the folding umbrella, accelerates the rainwater to flow down from the folding umbrella, can solve the difficult pain point problem of the folding umbrella storage in the car in the rainy day.

The utility model relates to punch press technical field, the utility model provides a kind of high-strength fastener punch press with quick die changing function, it includes: punch press, the top of the punch press is provided with hydraulic punching, the side of the punch press is provided with quick die changing cooling circulation heat dissipation assembly, the quick die changing cooling circulation heat dissipation assembly includes placement table, the placement table is set in the top of punch press.The side of the punch press is provided with anti-blocking component, the anti-blocking component includes cross bar, by above-mentioned technical scheme, the technical problem that the punch press cannot be solved in prior art easily die is installed on placement table and ensures that punch press is kept in the temperature range of proper is solved.

The invention discloses a construction method and application of an engineering bacterium for increasing the yield of alpha-ketoglutaric acid. Wild E.coli.W3110 serves as a chassis strain, lactic dehydrogenase ldhA, pyruvate dehydrogenase poxB and formic acid C-acetyltransferase pflB are knocked out firstly, and the flow direction of pyruvic acid to lactic acid, acetic acid and formic acid is blocked; meanwhile, the promoter PBBaJ23109 is used for replacing a natural promoter of the sucA gene, so that alpha-ketoglutaric acid dehydrogenase is weakened, and the decomposition way of alpha-ketoglutaric acid is weakened; the phosphoenolpyruvate carboxylase ppc is overexpressed, and the flow direction of phosphoenolpyruvate to oxaloacetic acid is enhanced; isocitrate dehydrogenase icd from escherichia coli is overexpressed, so that synthesis of a product is promoted; besides, pyruvate dehydrogenase derived from saccharomyces cerevisiae is introduced and coded by genes PDB1, PDA1 and LAT1, so that an important precursor, namely pyruvic acid, is promoted to flow to acetyl coenzyme A; the engineering strain with high yield of alpha-ketoglutaric acid is finally obtained, the yield of 75.1 g / L can be achieved in a 5L fermentation tank through a fed-batch fermentation method for 40 hours, and the conversion rate is 39.6%.

The invention provides an atomization assembly, an atomizer and an aerosol generating device, and belongs to the field of aerosol generating devices. The atomization assembly comprises a first liquid guide part, a second liquid guide part and an atomization core structure, the first liquid guide part is provided with a first through hole, the second liquid guide part is tubular and is inserted into the first through hole, the atomization core structure is inserted into the second liquid guide part, and the density of the second liquid guide part is larger than that of the first liquid guide part. When the atomization assembly is used, the aerosol generating matrix can be absorbed by the first liquid guide part, permeates into the second liquid guide part through the first liquid guide part, and is supplied to the atomization core structure through the second liquid guide part. Due to the fact that the density of the second liquid guide part is larger than that of the first liquid guide part, capillary force generated by the second liquid guide part is higher, the aerosol generating matrix in the first liquid guide part can be siphoned by the second liquid guide part, and the aerosol generating matrix in the first liquid guide part can be promoted to flow to the atomizing core structure. And the residue of the aerosol generating substrate in the atomizer is reduced.

This invention relates to the field of active power filter cabinet technology, and proposes a heat dissipation system for an active power filter cabinet, including a cabinet body. A top air outlet is fixed in the middle of the top surface of the cabinet body, and an air guide frame is fixed in the middle of the top surface of the inner side of the cabinet body. The air guide frame is connected to the inner side of the top air outlet, and a rotating hole is provided in the middle of the top surface of the top air outlet. After the drive motor of this invention drives the cooling fan to rotate, the external cold airflow enters the cabinet body through the bottom air inlet frame for heat dissipation, and then enters the top air outlet through the air guide frame, and is discharged through multiple air outlet slots, carrying away the heat inside the cabinet body. A first filter screen is connected to the air guide frame through a first mounting frame, and a second filter screen is connected to the bottom air inlet frame through a second mounting frame, which can prevent dust from entering the cabinet body and protect the internal equipment from dust. The first and second mounting frames are easy to disassemble and assemble, facilitating the cleaning or replacement of the first and second filters and maintaining efficient heat dissipation capacity.

The invention discloses an evaporation ice tray, an ice tray assembly and an ice maker, the evaporation ice tray comprises a main frame body and a spacer, the main frame body comprises a bottom wall and an enclosure wall which are connected, the bottom wall and the enclosure wall define an inner concave cavity, the enclosure wall comprises a first end and a second end which are oppositely arranged, and the direction of the first end towards the second end is defined as a first direction; the spacer is arranged in the inner concave cavity and divides the inner concave cavity into at least two grids. Each grid comprises a first wall face and a second wall face which are spaced in the first direction, the first wall faces are obliquely arranged in the direction away from the second wall faces relative to the bottom wall, and the second wall faces are obliquely arranged in the direction away from the first wall faces relative to the bottom wall. Thus, under the action of the Coanda effect and the guidance of the first wall surface, more liquid flows to the bottom wall, the risk that local parts in the grids lack liquid is reduced, more ice is formed on the surface of the bottom wall during icing, meanwhile, the liquid flowing on the surface of the bottom wall can assist in discharging gas generated in the phase change process, and the phase change effect is improved. And the freezing quality is prevented from being influenced by gas retention in the freezing process.

The utility model provides a kind of fixed-point intervention injection needle, including the handle of needle connected with syringe, and the needle head connected with handle of needle, handle of needle and needle head are connected by sliding assembly, to make needle head limitedly slide in handle of needle along axial direction, needle head includes the needle stem connected with sliding assembly, and the needle tip integrally made with needle stem, needle tip is the rotating body structure being set along axial direction, needle stem and needle tip are provided with the flow channel for drug liquid inflow, needle tip is provided with the injection hole being communicated with flow channel and outside, the edge of injection hole near flow channel side is set as bevel angle, bevel angle is set as bevel angle from the edge of injection hole to the center of injection hole, from inside to outside, injection hole edge near outside side is set as round angle, the utility model can reduce the damage of conventional needle head to blood vessel tissue, and more portable adjustment needle head length, to cope with different projects.

The utility model discloses a reinforced concrete outer wall connecting structure relates to building engineering technical field, the utility model discloses a grouting sleeve one side below is connected with first outer tube through grouting mouth, and first outer tube one side top is connected with grouting joint, and first outer tube inside below places the spring, and spring top place has the push frame, and the push frame top place has the sealing bead, and first outer tube inner ring is connected with the guide ring, the utility model discloses a grouting sleeve one side top is connected with second outer tube through the row of grout mouth. The utility model discloses the setting of first outer tube, spring, sealing bead and guide ring, when grouting operation, the slurry is guided after the top slope of guide ring, and the pressure concentrated effect is in sealing bead, and the sealing bead is driven to move down and drives the push frame compression spring, after stopping grouting, the spring releases the force storage drive push frame and moves up, makes sealing bead and guide ring bottom slope accurate adhesion and blocks, effectively reduces the slurry reflux phenomenon, and the filling fullness of grouting sleeve inside slurry is promoted with the help.

The application provides a machining device for compressor crank structure, comprising a crank; the crank is composed of a disc, a cam and a central shaft, the top surface of the disc is fixedly connected with the cam, the top surface of the cam is provided with a mounting hole, one end of the mounting hole penetrates through the disc, the bottom surface of the disc is provided with a positioning groove, the middle part of the bottom surface of the disc is fixedly connected with the central shaft, and the bottom surface of the central shaft is fixedly connected with a driving shaft; comprising a workbench, the top surface of the workbench is respectively provided at both ends with a forming assembly and a punching assembly, the top surface of the workbench is provided at one side with a cooling assembly, the top surface of the workbench is fixedly connected with an L-shaped plate, one side of the L-shaped plate is provided with a clamping assembly, the bottom surface of the L-shaped plate is fixedly connected with a hydraulic rod, and the output end of the hydraulic rod is fixedly connected with a laying plate. Through the cooperation of the forming assembly, the punching assembly, the cooling assembly and the clamping assembly, the continuous production of the crank is realized.

This invention provides a bottom-supported discharge structure for a reactor, belonging to the field of mechanical technology. It solves the problem that the support structure and discharge port of existing reactors are separately and independently configured. The reactor includes a vessel body with a mounting hole at the bottom. The discharge support structure includes a support base located in the mounting hole and sealed and fixedly connected to the vessel body. The top of the support base has a support part for supporting the reactor's stirring shaft, and the bottom of the support base has a fixing part for fixing a discharge valve. The support base has a discharge hole for connecting the inner cavity of the reactor body to the discharge valve. This bottom-supported discharge structure for the reactor has the advantages of integrating the support structure and discharge port into one unit and facilitating the installation of the discharge support structure.

The utility model discloses a kind of range hood, including shell and the fan system being set in shell, the axis of fan system extends in front-back direction, the fan system includes backward first suction inlet;The first ventilation component for receiving oil dropped by fan system is provided in shell or the bottom of shell, and the first ventilation component includes the first ventilation component body being set corresponding to the position below fan system, the first ventilation component body includes first part and second part, first ventilation hole is opened in the first part, the second part has the ridge portion that is upwardly protruding relative to first part and the side portion located in the left and right sides of ridge portion, the side portion gradually inclines downward in the direction away from ridge portion, and first ventilation hole is at least distributed in the left and right sides of second part;In horizontal plane projection, the distance between ridge portion and the axis of fan system is d4, and satisfy d4≤D / 2, wherein D is the diameter of first suction inlet.