113results about How to "Reduce reflux" patented technology

The invention relates to the technical field of automatic dust removal equipment, and discloses safe-filtering electrical automatic dust removal equipment which comprises a main body, a partition plate is fixedly connected to the interior of the main body, an adsorption pump is fixedly connected to the top of the partition plate, an outlet bin is fixedly connected to the bottom of the main body, and a rotating ring is arranged at the end, away from the adsorption pump, of the partition plate; the end, close to the adsorption pump, of the connecting disc is in bolted connection with the partition plate. The spiral structure in the arc-shaped vertebral plate can guide gas sprayed out through the hollow ring, so that the gas flows in a downward spiral flowing mode when being sprayed out, and dust on the surface of the filter layer is sprayed downwards to be cleaned; the dust collector has the advantages that stronger impact force and downward traction force can be generated on dust on the surface of the dust collector, so that the dust is more effectively cleaned, the dust is prevented from being accumulated on the surface of the dust collector, and a filtering layer is prevented from being blocked.

The invention provides an oil baffle structure, a rotor assembly, a motor and a compressor, the oil baffle structure is used for cooperating with a rotor core for use, and the rotor core is provided with a circulation hole which partially generates backflow when operating at a first rotating speed; the oil blocking structure comprises a movable blocking piece, and the movable blocking piece is used for being connected with the rotor iron core so as to be driven by the rotor iron core to rotate together and move to a first position relative to the rotor iron core when the rotor iron core operates at a first rotating speed. At the first position, the movable blocking piece blocks at least part of the circulation holes where backflow occurs. According to the technical scheme of the invention, as the movable blocking piece can block the circulation hole where backflow occurs when the rotor iron core operates at the first rotating speed such as high speed, the circulation area of the backflow circulation hole can be reduced, backflow is reduced, and the oil spitting rate of the compressor is reduced.

The improved high-performance fire pump comprises a centrifugal impeller, a volute, a rotating shaft and a motor, the centrifugal impeller comprises a rear disc, a front disc and blades, and the inner side of the rear disc is provided with a first plane; the impeller is characterized in that the blade comprises a main blade part and a small blade part which are integrally formed, the main blade part is provided with a main blade front edge, the rear edge of the small blade part is repeated with the main blade front edge, and an included angle a is formed between the top edge of the small blade part and the first plane; the included angles a between at least more than 50% of the top edges in the plurality of small blade parts and the first plane are not equal, and the included angles a are equal to 1-15 degrees. Through the design of the small blade part, turbulent flow or backflow and secondary flow at the blade inlet in the impeller cavity can be reduced, the anti-cavitation performance of the fire pump can be improved, and therefore the hydraulic performance and efficiency of the fire pump can be improved.

The invention relates to a wind tunnel PIV tracer particle rapid and uniform cooling and mixing device, and the device comprises a mixing channel section which is internally provided with a mixing channel, and the mixing channel is cylindrical; the first airflow inlets are formed in the end face of the inlet end of the mixing channel section and are annularly distributed along the end face of the inlet end of the mixing channel section; the center of the ring where the first airflow inlet is located coincides with the axis of the end face of the inlet end of the mixing channel; the second airflow inlet is formed in the end face of the inlet end of the mixing channel section and is formed in the axis of the end face of the inlet end of the mixing channel; the third airflow inlet is formed in the inlet end of the mixing channel section, and the third airflow inlet is formed in the tangential direction of the radial section of the mixing channel; the airflow outlet is formed in the outlet end of the mixing channel section; the first, second and third airflow inlets are in communication with the mixing channel. The device has the advantages of being simple in structure and low in cost, rapid mixing heat transfer of wind tunnel PIV tracer water particles can be achieved, and large-proportion collision in the mixing process is avoided.

The invention provides an intelligent sewage treatment HPB-MBR system and a control method. The sewage treatment device comprises a biochemical pool, a multi-stage rotational flow concentration mechanism and an MBR (Membrane Bioreactor) pool which are communicated in sequence, the biochemical tank comprises an anaerobic tank, an anoxic tank and an aerobic tank which are communicated in sequence. The multi-stage rotational flow concentration mechanism is communicated with the aerobic tank and comprises 2-3 stages of rotational flow concentration mechanisms which are connected in series. And the MBR tank is communicated with an overflow discharge hole of the first-stage cyclone concentrator. And the MBR tank is provided with a backflow pipeline and a drainage pipeline. And the return pipeline is communicated with the aerobic tank. The number of stages of the multi-stage rotational flow concentration mechanism is proper, so that sludge with relatively large specific gravity can be relatively thoroughly separated and flows back to the anoxic tank and / or the aerobic tank through the first reflux. Thus, the flow of the first reflux is relatively small, the concentration of sludge entering the MBR tank is low, the flow of the MBR tank for the second reflux is also small, the energy consumption is reduced, and the degree of influence of the second reflux on dissolved oxygen of the aerobic zone is reduced.

The utility model relates to a vibrating MBR membrane device and a vibrating MBR membrane sewage treatment system, which are characterized in that the vibrating MBR membrane sewage treatment system comprises an anaerobic tank, an anoxic tank, an aerobic tank, an MBR membrane tank and a clear water tank which are sequentially arranged according to a water flow sequence, the anaerobic tank is provided with a water inlet, the clear water tank is provided with a clear water discharge pipe, and the anoxic tank is provided with a water outlet. A vibrating MBR membrane device is arranged in the MBR membrane tank and comprises a rack, a moving frame which is erected at the top of the rack and slides along the rack, an MBR membrane assembly arranged on the moving frame and a crankshaft driving mechanism for driving the moving frame to do reciprocating linear motion. And the MBR membrane tank is also communicated with the anoxic tank through a steam stripping return pipe, and the anoxic tank is communicated with the anaerobic tank through a steam stripping return pipe. According to the utility model, not only is the sewage treatment effect greatly improved, but also the service life of the MBR membrane is prolonged, and the energy consumption is saved.

The continuous flow sludge rapid granulation system based on particle size separation comprises a micro-aerobic tank, an aerobic tank, a precipitation device and a particle size separation device, the micro-aerobic tank is communicated with the aerobic tank, the precipitation device and the particle size separation device are both installed on the upper portion of the aerobic tank, the bottoms of the precipitation device and the particle size separation device are both communicated with the aerobic tank, the micro-aerobic tank is communicated with the precipitation device, and the particle size separation device is communicated with the precipitation device. And the precipitation device is communicated with the particle size separation device. Wherein the particle size separation device realizes screening and enrichment of granular sludge, and a continuous flow aerobic granular sludge system with a high granulation ratio is rapidly formed; the precipitation device can accelerate the formation of the granular sludge, and long-term stable operation of the granular sludge is ensured by coexistence of the precipitation device and the granular sludge; the outer-layer aerobic and inner-layer anoxic / anaerobic microenvironment can be used for synchronously removing phosphorus by nitrification and denitrification. The continuous flow aerobic granular sludge which operates stably for a long time and has good carbon, nitrogen and phosphorus removal performance can be rapidly cultured, in addition, investment is small, compatibility is easy, the occupied area and operation energy consumption are saved, and the method has good application prospects.

The invention discloses an immunoregulation drug delivery system for specifically targeting focus MDSC cells as well as a preparation method and application of the immunoregulation drug delivery system. The delivery system is of a double-layer vesicle structure, an inner-layer vesicle is a polymer vesicle of an antibody targeting MDSC cell surface marker, the outer wall of the inner-layer vesicle is positively charged and loads an immunoregulation therapeutic gene, and a therapeutic drug is loaded in the inner-layer vesicle; the outer-layer vesicle is an enzyme substrate polypeptide-PEG (Polyethylene Glycol) modified liposomal vesicle which can be disintegrated in a targeted manner under the action of a placenta interstitial fluid high-expression enzyme. The delivery system provided by the invention can realize regulation and control of MDSC in the placenta and regulation and control of immunity in the placenta, avoids influence on functions of other cells in the placenta, can effectively reduce medicine leakage through maternal and fetal barriers, and reduces toxicity to fetuses and maternal bodies.

The invention discloses a folic acid-polylactic acid double-layer vesicle delivery system for targeting MDSC cells in a focus and a preparation method and application of the folic acid-polylactic acid double-layer vesicle delivery system, the folic acid-polylactic acid double-layer vesicle delivery system comprises an inner-layer vesicle and an outer-layer vesicle, and a contrast agent is contained between the inner-layer vesicle and the outer-layer vesicle; the inner-layer vesicle is formed by self-assembling two block polymers, the outer wall of the inner-layer vesicle is positively charged, the inner-layer vesicle is compounded with an immunoregulation therapeutic gene through electrostatic interaction, the surface of the inner-layer vesicle is modified by an antibody targeting an MDSC cell surface marker, and a therapeutic drug is loaded in the inner-layer vesicle; the outer vesicle is formed by a liposome modified by targeted disintegration enzyme substrate polypeptide-PEG (Polyethylene Glycol). According to the double-layer vesicle delivery system, the delivery regulation range of the COX-2 inhibitor and folic acid targeted immunotherapy can be limited to local lesion placenta, the toxicity of immune drugs to pregnant women is effectively reduced, effective immunotherapy of placental diseases is made possible, the current situation that no treatment means are provided for placental dysfunction diseases is remarkably improved, and the application prospect is wide. A new thought is provided for effective immunotherapy of placenta dysfunction diseases.

A centrifugal fan comprises a volute, an impeller arranged in the volute and a volute tongue arranged at an outlet of the volute, the volute is provided with a volute ring wall, a flow channel is formed between the volute ring wall and the impeller, and an air inlet is formed in the volute ring wall. The air guide interface comprises a mounting frame and at least two air guide blades mounted in the mounting frame, the mounting frame is fixed on the annular wall of the volute, the air guide blades are distributed at intervals along the flowing direction of the air flow, and the air guide blades are used for guiding the air flow outside the fan into the flow channel. Compared with the prior art, the centrifugal fan has the advantages that the air guide interface is arranged at the air inlet of the volute annular wall, and the air guide interface is provided with the at least two air guide sheets which are distributed at intervals along the flowing direction of the air flow, so that the air flow outside the fan can be more effectively guided into the flow channel by the air guide sheets; and therefore, the efficiency of the fan is improved, and the working noise of the fan is reduced.

The invention discloses a reciprocating pultruder suitable for a glass fiber reinforced plastic bridge, and the invention relates to the technical field of pultruders. The invention comprises an extruder, the extruder is fixedly connected to the side of the support plate away from the bottom plate, the winding box is fixedly connected to the top of the bottom plate, the winding assembly is slidably connected to the inside of the winding box, the impregnation shell is fixedly connected to the top of the bottom plate, the impregnation assembly is slidably connected to the inner wall of the impregnation shell, the extrusion assembly is fixedly connected to the top of the bottom plate, one side of the winding box is fixedly connected to the side of the threading plate away from the extruder, and the remaining two threading plates are slidably connected to the inside of the impregnation shell, the number of threading plates is set to three, the three threading plates gradually become smaller, and the glass fiber yarns inserted into the three threading plates gradually come together to form a dense structure, which is conducive to improving the strength of the glass fiber reinforced plastic bridge after forming, and the glass fiber yarns unwound from the winding box are far apart, and each fiber is clearly distinguished when punching, and it is not easy to pierce the wrong hole.

The utility model belongs to the technical field of medical instruments, and particularly discloses a novel aortic valve support and an artificial valve. The novel aortic valve stent is made of memory metal wires, is of a grid cylindrical structure and comprises an inflow end stent, a connecting part stent and an outflow end stent. The connecting part bracket comprises an interval side bracket, an interval opposite side bracket and other side wall brackets; the grid area and the metal wire width of the interval side support and the interval opposite side support are larger than those of the other side wall supports, and the metal wire thickness and the deformation amount compliance are smaller than those of the other side wall supports. The artificial valve comprises a novel aortic valve support, axial positioning metal, valve leaflets and an anti-regurgitation skirt edge, wherein the valve leaflets and the anti-regurgitation skirt edge are made of polymer materials. The problems of perivalvular regurgitation, abnormal heart conduction and short service life of the existing artificial valve can be solved.

The invention provides an LED chip and a manufacturing method thereof. The LED chip comprises a substrate; the first type semiconductor layer, the active layer, the second type semiconductor layer, the first passivation layer, the reflecting layer and the second passivation layer are arranged on the surface of one side of the substrate and are sequentially arranged in the first direction; the first direction is perpendicular to the substrate and points to the active layer from the substrate; a plurality of grooves arranged in an array are formed in one side, close to the first passivation layer, of the reflecting layer, the opening of each groove faces the first passivation layer, and the groove wall of each groove is a curved surface, so that light entering the grooves is shaped and collected and then is reflected to the light emitting surface; a first electrode electrically connected to the first type semiconductor layer; and a second electrode electrically connected with the second type semiconductor layer. According to the LED chip, the incident angle of light on the light emitting surface of the LED chip can be reduced, so that the probability that the light is totally reflected is reduced, and the light extraction efficiency is improved.

The invention discloses a drug system for regulating and controlling oxidation reduction in immune cells through ion delivery as well as a preparation method and application of the drug system. The drug system comprises polymer vesicles on the inner layer and liposome vesicles on the outer layer, the polymer vesicles are formed by self-assembly of diblock polymers PEI-b-PLA or PEI-b-PLA, and the surfaces of the polymer vesicles are modified by antibodies targeting MDSC cell surface markers. The outer wall of the polymer vesicle is positively charged and is compounded with a therapeutic gene with a cell redox regulation function through electrostatic interaction, and an iron ion therapeutic drug capable of realizing cell redox regulation is loaded in the polymer vesicle; the liposomal vesicles are modified with a targeted disintegrating enzyme substrate polypeptide-PEG. According to the medicine system, regulation and control of MDSC in the placenta and regulation and control of immunity in the placenta can be achieved, influences on functions of other cells in the placenta are avoided, the situation that medicine leaks through a maternal-fetal barrier can be effectively reduced, toxicity to a fetus and a maternal body is reduced, and a new thought is provided for effective immunotherapy of placenta dysfunction diseases.

The invention relates to the technical field of thermal management of power devices, and discloses a heat dissipation method and system based on a Tesla valve, and the method comprises the steps: providing a heat dissipation system, pumping cooling liquid into a heat exchange assembly through a liquid supply structure, obtaining the temperature of the cooling liquid in an initial circulation state, and cooling the cooling liquid in the initial circulation state; real-time temperature values of multiple points of the heat exchange assembly are obtained respectively, whether the temperature variance is larger than a preset target threshold value or not is judged, if yes, the volume of the wing-shaped flow choking area is reduced, and if not, the volume of the wing-shaped flow choking area is increased; under the condition that the cooling requirement is high, the volume of the wing-shaped flow choking area is adjusted to be reduced, cooling liquid can rapidly flow back to the liquid supply structure to be replaced, under the condition that the cooling requirement is low, the volume of the wing-shaped flow choking area is adjusted to be increased, liquid flow circulates between the heat exchange assembly and the adjustable Tesla valve in an accelerated mode, the heat dissipation uniformity is optimized, and the heat dissipation efficiency is improved. And the effect of uniform heat dissipation can be achieved under different load conditions and under the condition that the cooling requirement is greatly changed.

The invention discloses a drug delivery system for metabolism regulation of specific immune cells and a preparation method and application thereof.The drug delivery system is of a double-layer vesicle structure and comprises inner vesicles and outer vesicles, the inner vesicles are polymer vesicles formed by self-assembly of diblock polymers PEI-b-PLA or PEI-b-PLA, and the outer vesicles are polymer vesicles formed by self-assembly of diblock polymers PEI-b-PLA or PEI-b-PLA. The outer wall of the inner-layer vesicle is positively charged and is loaded with a therapeutic gene for immunoregulation of Arginase-1, the surface of the inner-layer vesicle is modified by an antibody targeting an MDSC cell surface marker, and a biguanide therapeutic drug is loaded in the inner-layer vesicle; the outer-layer vesicle is a liposome-like vesicle modified by angiotensin converting enzyme substrate polypeptide-PEG (Polyethylene Glycol) which is disintegrated in a targeted manner. The drug delivery system designed by the invention can effectively avoid influence on immune cells outside a focus, and further performs specific drug delivery and function regulation and control on immune cells such as immune microenvironment MDSC in the focus, so that effective immunotherapy of placental diseases becomes possible.

The invention discloses a high-efficiency optical parametric oscillator, and belongs to the technical field of lasers, the high-efficiency optical parametric oscillator comprises a pumping source output assembly, a coupling system, a first resonant cavity mirror and a nonlinear crystal which are sequentially arranged along the direction of an optical path, a dispersion prism is arranged at a light outlet of the nonlinear crystal, and the dispersion prism can divide light into signal light and idler frequency light; the dispersion prism and the light source are transmitted along a first light path and a second light path respectively, a second resonant cavity mirror is arranged on the first light path, an optical parameter adjusting assembly is arranged between the dispersion prism and the second resonant cavity mirror, and a third resonant cavity mirror is arranged on the second light path. According to the high-efficiency optical parametric oscillator provided by the invention, the light-light conversion efficiency and high light beam quality of parametric light can be simultaneously obtained under different power pumps under the conditions of not changing a cavity type structure and not needing to be reassembled and adjusted under the different power pumps.

The utility model discloses an intelligent infusion support capable of changing medicine automatically, which is specifically applied to infusion management of a medical clinical front line and aims to improve the efficiency and safety of infusion treatment. The device is composed of a frame body, an infusion apparatus inserting and pulling part, a rotary medicine changing part and a medicine bottle hanging part. According to the rotary medicine changing part, a 57 stepping motor drives a medicine placing rotary disc to rotate. The medicine bottle hanging part is composed of a hook barrel, an infusion bottle hook, a hook limiting clamp and a limiting clamp spring. Four infusion bottle hooks can be installed in the hook barrel, the infusion bottle hooks can slide up and down in the hook barrel, the height of the infusion bottle hooks can be locked through the limiting clamps, and therefore the device can hang four bottles of liquid medicine at a time and is suitable for infusion bottles or bags of various types and specifications. The device can autonomously complete the whole process from infusion completion to medicine bottle replacement through a series of actions of automatically detecting the flow rate, pulling and inserting the infusion apparatus head, rotating and changing medicine and the like, so that the continuity and the stability of infusion treatment are ensured.

The application discloses a liquid seasoning adding device, which belongs to the field of cooking machines. The liquid seasoning adding device comprises a liquid seasoning storage structure, a pump body structure, a liquid conveying pipeline and a dropping assembly. The liquid conveying pipeline is sequentially connected with the liquid seasoning storage structure and the pump body structure, and the liquid outlet end of the liquid conveying pipeline is connected with the dropping assembly. The dropping assembly is arranged above a frying pot body. The dropping assembly comprises a mounting shell, an interface plate and a rotary driving structure. A through groove is formed in the mounting shell, and the through groove is used for butt joint with an opening of the frying pot body. A seasoning adding opening is arranged on the side surface of the mounting shell, and the interface plate is arranged at the seasoning adding opening. The driving structure drives the interface plate to switch positions between the interface plate being located in the through groove and being located outside the through groove.

The utility model relates to a thrombus aspiration device, and relates to the technical field of medical instruments, the thrombus aspiration device comprises a aspiration assembly, the aspiration assembly comprises an aspiration shell, a blood storage cavity is formed in the aspiration shell, a core rod is arranged on the aspiration shell, the core rod slides in the blood storage cavity, and along with the sliding of the core rod, the blood storage cavity is communicated with the blood storage cavity; negative pressure is formed in the blood storage cavity; the filtering assembly comprises a filtering shell, an outlet and an inlet are formed in the filtering shell, the outlet is communicated with the blood containing cavity, and the inlet is communicated with blood vessels of a patient; and the recovery assembly is communicated with the blood storage cavity, and the recovery assembly is used for recovering the sucked blood of the patient. According to the thrombus aspirator, the situation of excessive blood loss of a patient in the thrombus aspiration process is prevented.

The present invention discloses an axial flow cooling fan assembly structure, which includes an impeller, a hood connection mechanism and a motor, wherein the impeller is assembled in the hood connection mechanism through the motor; the impeller includes a hub, blades and a wind shield, the root of the blade is connected to the hub, and the top is connected to the wind shield; the hood connection mechanism includes a wind shield, ribs and a motor connection cover; the root of the ribs is connected to the motor connection cover, and the top is connected to the wind shield; the ribs include a plurality of airflow guiding ribs, the cross section of the airflow guiding ribs is an airfoil shape, and has a twisted structure relative to the radial direction; the rear end of the motor is installed in the motor connection cover, and the front end of the motor's rotating shaft is coaxially connected to the hub. The axial flow cooling assembly structure of the present invention has many advantages such as large flow rate, good heat dissipation effect and sound quality.

The invention discloses a fresh air assembly and an air conditioner, the fresh air assembly comprises a shell and a wind wheel, and a worm wheel cavity is formed in the shell; the wind wheel is rotatably arranged in the worm wheel cavity; wherein an installation groove in the thickness direction of the wind wheel is formed in the shell, a ventilation opening penetrating in the thickness direction is formed in the bottom wall of the installation groove, and at least part of the wind wheel is contained in the installation groove. According to the fresh air assembly, the mounting groove is formed, and at least part of the wind wheel is arranged in the mounting groove, so that the thickness of the wind wheel can be increased, the air outlet amount can be increased, backflow of airflow is reduced, and the air outlet efficiency is improved.

The utility model discloses a printing and dyeing pre-wetting device which comprises a pre-wetting shell, a cloth inlet and a cloth outlet are formed in the left end and the right end of the pre-wetting shell respectively, cloth roller sets are arranged at the cloth inlet and the cloth outlet respectively, a pre-wetting device body is arranged in the pre-wetting shell, and the pre-wetting device body comprises a pre-wetting roller set, a water filtering assembly, a first water pump and a water return connecting pipe. The pre-wetting shell is designed in a segmented mode and comprises the material cloth cavity and the pre-wetting cavity, the inner diameter of a channel is reduced, water backflow is reduced, the washing effect is enhanced, and the coloring quality is improved. And a reverse osmosis water filter is used, so that the cleanliness of pre-wetting water is ensured. The first water pump is added to accelerate the filtering process and improve the efficiency. Filtered water flows in from the top through the design of the water return connecting pipe, and the pre-wetting effect is improved. The three-way electric control valve and the water replenishing pipe facilitate water replenishing, and continuity and stability of the pre-wetting process are guaranteed.

This utility model belongs to the field of machining, specifically a cutting fluid circulation filtration device, including a circulation tank; a feed inlet is fixedly connected to the top of the circulation tank; multiple sets of filter plates are fixedly connected to the inner side wall of the circulation tank; the filter plates are arranged in an array on the inner side wall of the circulation tank; multiple sets of linear motors are fixedly connected to the side wall of the circulation tank; the linear motors are located at the bottom of the filter plates; a first support rod is slidably connected to the side wall of the linear motor; a water pipe is fixedly connected to the side wall of the first support rod; a push plate is slidably connected to the side wall of the circulation tank; the push plate is located at the top of the filter plates; the sprayed liquid connected through the water pipe backwashes the filter plates, and the push rod drives the push plate to push away debris, which can effectively remove the debris accumulated on the surface of the filter plates, reduce the decrease in filtration efficiency caused by the clogging of the filter plate surface, and further increase the effect of circulation filtration.

The utility model discloses a cross-flow fan volute, and relates to the technical field of fan volutes, the cross-flow fan volute comprises a fan shell, the fan shell is a cavity which is enclosed by a left side plate, a right side plate and a volute together and is provided with an upward opening, and an impeller is arranged in the cavity; a space between the left side plate and the right side plate forms an air inlet duct of the fan, and an air inlet is formed above the air inlet duct; the volute comprises a left volute and a right volute, the lower portion of the left side plate is connected with the left volute, the left volute is connected with the lower side plate, the lower portion of the right side plate is connected with the right volute, and the right volute is sequentially connected with the volute tongue and the upper side plate. The upper side plate and the lower side plate jointly form an air outlet channel on the lower right side of the fan shell, and an air outlet is formed in the tail end of the air outlet channel. The molded lines of the left side volute and the right side volute are logarithmic spiral lines, the initial radius of each molded line is R2, the outlet airflow angle is alpha, the polar angle is phi, and the equation of the logarithmic spiral lines is x = R2 * em.tan alpha cos phi, and y = R2 * em.tan alpha sin phi; the volute tongue structure can reduce airflow resistance, reduce backflow at the bottom of the volute tongue, and reduce vibration and noise of a fan.

The utility model relates to the technical field of bogies, in particular to a dynamic seal oil leakage prevention structure suitable for a rail transit bogie gearbox, which comprises an oil collecting structure and an oil backflow structure. The oil collecting structure comprises a shaft sleeve arranged on the side wall of the gear box body, a plurality of sealing ring grooves and at least one oil collecting ring groove are formed in the movable sealing face, matched with the axle, of the shaft sleeve, the oil collecting ring groove is formed among the sealing ring grooves, and the width of the oil collecting ring groove is larger than that of the sealing ring groove. The oil liquid backflow structure comprises an oil liquid backflow flow channel, and the oil liquid backflow flow channel communicates with the bottom of the oil collecting ring groove and the interior of the gear box body. The gear box has the advantages that the oil collecting ring groove is formed in the shaft sleeve, so that leaked oil is collected by the oil collecting ring groove, the oil collected by the oil collecting ring groove finally returns to the interior of the gear box body through the oil backflow channel, the oil is prevented from leaking from the gear box body, and the lubricating reliability of the gear box in the long-term operation process is guaranteed.

The utility model discloses a flexible hoist, including middle part double channel shell, the bottom fixed connection base shell is connected below the middle part double channel shell, the top fixed connection of middle part double channel shell is discharged casing, the top fixed of discharge casing is equipped with the upper cover, the motor is fixed and is equipped with on the discharge casing, the motor is connected the driving gear through the belt, the base shell, discharge casing and the upper cover are equipped with a plurality of guide gear, the driving gear and the guide gear are engaged and are connected chain, the chain fixed connection hopper, the hopper is in each position opening at different positions, to reach the whole process of feeding, hoist, pour material, the whole process, transportation is stable, and the transportation process does not exist backflow, and soft pour, to reach the purpose of reducing backflow, reducing the broken rate.

The application discloses a kind of membrane separation concentrated water processing equipment, and the application relates to sewage treatment technical field.The membrane separation concentrated water processing equipment, including processing tank, agitating mechanism, impurity removal mechanism, agitating mechanism includes shaft and servo motor, the outer cylindrical surface of shaft and the top position of processing tank inner cavity close installation have defoaming assembly, the outer cylindrical surface of shaft and the bottom position of processing tank inner cavity close fixedly connected with stirring plate, impurity removal mechanism includes conical screen and collection component, conical screen surface middle is fixedly connected with lower conical extension ring, the surface of conical screen and the top position close fixedly connected with upper conical extension ring, the surface of lower conical extension ring and the surface of upper conical extension ring are all fixedly installed with guide vane, the middle of upper conical extension ring surface is fixedly installed with stirring tooth, reaches the purpose of impurity removal, can remove particulate impurities, and pharmaceutical and concentrated water are uniformly mixed, effectively treat sewage, safe and reliable.

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.

An air conditioning system oil-gas separator with an auxiliary heating gasification function comprises a shell, the interior of the shell is hollow to form a separation cavity, the top of the shell is provided with a mixed fluid inlet and a gaseous refrigerant outlet, the bottom of the shell is provided with an oil return opening, the shell is made of ferromagnetic materials, and the surface of the shell is coated with a heat preservation layer. And an electromagnetic heating coil is sleeved outside the heat preservation layer and is connected with an electromagnetic heating controller, and the electromagnetic heating controller drives the electromagnetic heating coil to work to heat the shell to enable the shell to rise in temperature, so that the gasification speed of the liquid refrigerant in the separation cavity is accelerated. The oil-gas separator has the advantages that the electromagnetic heating coil is arranged on the surface of the outer shell of the oil-gas separator, the electromagnetic heating controller controls the electromagnetic heating coil to work, and the outer shell is heated. In this way, the temperature in the oil-gas separation cavity is increased, and therefore the gasification speed of the liquid refrigerant is increased.