504results about How to "Extended flow path" patented technology

Methods of stimulating production of coalbed methane from a coal-bearing formation are described, one method involving providing a perforation charge comprising a standard charge portion and a charge additive able to produce localized temporary oxidizing environments in perforations; perforating a coal-bearing formation with the perforation charge to form initial perforations defined by carbonaceous material, the initial perforations having localized temporary oxidizing environments in them, and initiating combustion of the carbonaceous material using the oxidizing environments, thus enlarging the initial perforations. Other methods involve perforating the coal-bearing formation with a standard perforation charge, thereby creating perforations; and treating the perforations with a composition creating temporary local oxidizing environments involving an oxidant in the perforations, and initiating combustion of carbonaceous material using the excess oxidant, thus enlarging the perforations.

The invention provides a force measuring method of a ventilation model under the condition of a free jet wind tunnel test. The force measuring method of the ventilation model under the condition of the free jet wind tunnel test comprises the following steps that a ventilation model force measuring device is designed, specifically, the ventilation model, a measurement balance, a base, a tail support rod and a hot air flow blocking assembly are included, wherein the measurement balance is arranged in the ventilation model and used for measuring the aerodynamic performance of the ventilation model; the tail support rod realizes the supporting of the ventilation model in a tail support mode, one end of the tail support rod is arranged on the base, the other end of the tail support rod is connected with the measurement balance, and the tail support rod is not in contact with the inner wall of the ventilation model; the hot air flow blocking assembly is arranged between the tail support rodand the inner wall of the ventilation model, so that the tail support rod and the inner wall of the ventilation model are not in contact, and the hot air flow blocking assembly is used for reducing the flow velocity of hot air flow entering the tail of the ventilation model in the ventilation model; the ventilation model force measuring device is placed in a free jet wind tunnel; and the wind tunnel test is carried out to obtain effective force measuring data. According to the force measuring method of the ventilation model under the condition of the free jet wind tunnel test, the technical problems such as the inaccuracy of the model force measuring due to the inability to completely simulate the real flight environment of an aircraft in a conventional wind tunnel in the prior art can besolved.

In a supercharger (10) with an electric motor in accordance with the present invention, the electric motor (20) is arranged at a position adjacent to a compressor impeller (6), a center housing (14) has a cooling fluid flow path (34) formed in such a manner as to surround the electric motor (20) and be adjacent to a diffuser portion (25). A first cooling structure portion (38) is formed at a position in the electric motor (20) side in the cooling fluid flow path (34), a second cooling structure portion (39) is formed at a position in the diffuser portion (25) side in the cooling fluid flow path (34). The electric motor (20) is cooled by the first cooling structure portion (38). The diffuser portion (25) is cooled by the second cooling structure portion (39).

The invention provides an OLED display panel and a display device. A retaining wall of the OLED display panel comprises a substrate retaining wall layer, an inorganic retaining wall layer and an organic retaining wall layer which are stacked, an inorganic retaining wall film and the cross section of the substrate retaining wall layer form an undercut shape, and the substrate retaining wall layer comprises a second flexible substrate. The inorganic retaining wall layer comprises an inorganic layer in the driving circuit layer, and the organic retaining wall layer comprises at least one of a planarization layer, a pixel definition layer and a supporting column. Based on the retaining wall structure, the retaining wall height is increased, the organic materials can be better prevented from flowing, and the distance between the retaining wall and the display area is reduced. Meanwhile, the undercut shape between the retaining wall and the display area can also increase the flow path of theorganic materials, so that the distance between the retaining wall and the display area can be further reduced. Moreover, the cutting cracks can be prevented from extending to the display area alongthe inorganic layer and the substrate, so that the size of a frame can be further reduced to a greater extent.

The invention relates to a hydraulic oil tank, which comprises an oil tank body and an isolating component arranged in the oil tank body, wherein the oil tank body is provided with an oil return opening and an oil suction opening; the isolating component comprises at least two clapboards which divide the cavity of the oil tank body into three or more than three oil chambers; the oil return opening and the oil suction opening are positioned in two different oil chambers; all the clapboards are provided with meshes for allowing oil to pass through, so that the oil which enters the oil tank body by way of the oil return opening can pass through all the oil chambers in the oil tank body and then enters the oil suction opening; the size of each through hole which forms the mesh is big enough for the effect that air in the oil can be removed when the oil passes through the through holes. According to the hydraulic oil tank provided by the invention, effects of heat radiation, air separation and impurity precipitation are good, and bubbles in the hydraulic oil can be well removed.

The invention discloses an overflowing-type axial turnover outlet water sterilizing apparatus and a water purifying device. The overflowing-type axial turnover outlet water sterilizing apparatus comprises a first water pipe, a second water pipe, a deep-ultraviolet LED lamp assembly and an overflowing pipe assembly; the overflowing pipe assembly comprises a first transparent pipe, a second transparent pipe and a reflecting sleeve, an aluminum vacuum coated film is formed on the inner wall of the reflecting sleeve, the second transparent pipe sleeves the first transparent pipe, an overturning runner is formed between the second transparent pipe and the first transparent pipe, and the overturning runner is communicated with the first transparent pipe by virtue of a pipe; the first transparent pipe and the second transparent pipe are arranged in the reflecting sleeve; the first water pipe is communicated with the first transparent pipe, and the overturning runner is communicated with the second water pipe; and ultraviolet light generated by the deep-ultraviolet LED lamp assembly shines on a sterilizing space formed by the reflecting sleeve. By adopting the overflowing-type axial turnover outlet water sterilizing apparatus, the sterilizing efficiency is improved, the service life is prolonged, and the reliability and the safety of the drinking water and domestic water.

The invention discloses a gas-liquid type intercooler which comprises a housing and a heat exchange pipe which is arranged inside the housing, wherein a spoiler element is arranged inside the heat exchange pipe, the spoiler element is a spiral type spoiler piece, the outer spiral edge of the spiral spoiler piece is connected with the inner wall of the heat exchange pipe, and the spiral spoiler piece is provided with a flow channel which is through along the axial direction of the heat exchange pipe. Under the guidance of the spiral spoiler piece, part of high temperature compressed air performs spiral flow along the spiral spoiler piece inside the heat exchange pipe; simultaneously part of high temperature compressed air flows along the axial flow channel on the spiral spoiler piece; and spiral airflow and axial airflow perform mutual disturbance and produce continuous vortex to be mixed fully; and accordingly the effect of heat transfer is greatly improved. Furthermore, neither a flow dead angle nor an abrupt change position of a cross section is formed in a spiral flow path, so that the flow resistance is reduced.

The invention provides a coaxial filter rod with double permeability. The coaxial filter rod is sequentially provided with external-layer forming paper, external-layer trench cellulose paper, an external-layer cellulose acetate fiber filter core, internal-layer forming paper, internal-layer trench cellulose paper and an internal-layer cellulose acetate fiber filter core. An internal core and an external core are made by adoption of cellulose acetate tows having different fiber specifications / different numbers of fibers such that smoke pressure drop of the internal core is smaller than that of the external core. The internal core adopts the specification / number of cellulose acetate fibers of 11Y / 15000. The external core adopts the specification / number of cellulose acetate fibers of 7.5Y / 16000 or 7.5 / 16000.The coaxial filter rod with double permeability has following beneficial effects: a large amount of smoke flows through the internal core; bidirectional flow between internal and external layers of tows and trench cellulose paper is generated, thereby increasing a smoke flow path and a filtering area; and as a result, much more smoke particulates are intercepted so that tar amount and CO emission quantity of an cigarette are effectively decreased.

The invention discloses a temperature difference power generation device which comprises a tail gas tank, a cooling water tank assembly, a temperature difference power generation module assembly and a clamping plate. The two ends of the tail gas tank are provided with an intake manifold and an exhaust manifold respectively, and the tail gas tank comprises a gas tank body, a shunt fin, a flow guide fin and an afflux fin; the two ends of the cooling water tank assembly are provided with a water inlet manifold and a water outlet manifold respectively, the cooling water tank assembly comprises multiple cooling water tanks, and each cooling water tank comprises a water tank body and a flow guide plate; the hot end of the temperature difference power generation module assembly is attached to the two sides of the tail gas tank, the cold end of the temperature difference power generation module assembly is attached to one side of the cooling water tank assembly, and the temperature difference power generation module assembly comprises multiple temperature difference power generation modules; the clamping plate is arranged outside the cooling water tank assembly, and the two ends of the clamping plate are locked through bolts. The structure of the temperature difference power generation device is optimized and improved, power generation efficiency is improved, and the aim of improving the energy utilization rate is achieved.

The invention discloses a bipolar plate and a flow battery. The bipolar plate comprises a body and first flow blocking parts, wherein first electrolyte guide grooves are formed in the first surface of the body; the first flow blocking parts are arranged on the groove walls of the first electrolyte guide grooves. Since the first flow blocking parts are arranged on the groove walls of the first electrolyte guide grooves of the bipolar plate, vortexes are generated when the electrolyte flows in the first electrolyte guide grooves, and the flow path of the electrolyte is prolonged, so that the contact time of the electrolyte and the electrodes is prolonged, the electrolyte is permeated into the electrodes more sufficiently and the reaction between the electrolyte and the electrodes is more complete; the flow path of the electrolyte is effectively planned, so that the flowing dead space can be avoided effectively, and thus, the guide reliability of the bipolar plate is ensured, the performance of the flow battery is improved and the service life of the flow battery is prolonged.

Airway components, a liquid container, a humidifier and a ventilator. The airway components mentioned above consists of a air outlet tube which is provided with a air intake port and a air outlet port and a guided tube which is provided with a communicating port that is connected with the air outlet port of the air outlet tube mentioned above and multiple gas circulation ports that is connected with the communication port mentioned above. The airway components are installed in a humidifier liquid storage chamber during use and connect the air outlet port of the air outlet tube of the airway components to a air outlet port of the liquid storage chamber, which can solve a problem of patients choking water caused by air outlet port overflowing to some extent.

A manufacturing device of a silicon carbide single crystal includes: a reaction chamber; a seed crystal arranged in the reaction chamber; and a heating chamber. The seed crystal is disposed on an upper side of the reaction chamber, and the gas is supplied from an under side of the reaction chamber. The heating chamber is disposed on an upstream side of a flowing passage of the gas from the reaction chamber. The heating chamber includes a hollow cylindrical member, a raw material gas inlet, a raw material gas supply nozzle and multiple baffle plates. The inlet introduces the gas into the hollow cylindrical member. The nozzle discharges the gas from the hollow cylindrical member to the reaction chamber. The baffle plates are arranged on the flowing passage of the gas between the inlet and the nozzle.

The invention discloses a CO2 electroreduction electrolysis tank. A solution flow field plate in the electrolysis tank is provided with flow channels penetrating through a first insulating surface anda second insulating surface, and the flow channels cooperate with a cathode gas diffusion electrode and an electrolyte supporting layer to form an electrolyte cavity for a reaction of CO2 with an electrolyte. The first insulating surface of the solution flow field plate is provided with a groove, and the electrolyte supporting layer is embedded in the groove to make the solution flow field platein close fit with the electrolyte supporting layer. A feeding groove communicated with the electrolyte cavity is arranged at one end of the electrolyte cavity, the feeding groove is communicated witha material channel, a discharge groove communicated with the electrolyte cavity is arranged at the opposite end of the electrolyte cavity, and the discharge groove is communicated with the material channel. The flow channels increase the flow paths of reactants in the electrolyte cavity, so the reaction degree of the reactants is increased, and the attenuation rate of the CO2 electrical reductionability is reduced, thereby the stability of the CO2 electrical reduction ability in the long-time reaction process is increased, and the stability of the product yield is ensured.

The invention belongs to the technical field of aero-engine turbine cooling, and relates to a turbine blade trailing edge slit cooling structure adopting wavy partition ribs. The trailing edge slit cooling structure comprises a hollow turbine blade, an inner cavity cool gas channel, trailing edge exhaust slit channels and the trailing edge slit partition ribs, wherein an inner cavity cool gas channel is formed inside the hollow turbine blade, a wavy trailing edge exhaust slit is formed in the trailing edge of the hollow turbine blade in the chordwise direction, the plurality of wavy trailing edge slit partition ribs are evenly arranged inside the wavy trailing edge exhaust slit, and are arranged side by side to form the discrete trailing edge exhaust slit channels so as to allow cool gas to be exhausted out of the blade. Through the structure of the trailing edge slit partition ribs, the structural strength of the trailing edge of the blade can be improved, the internal heat exchange area of the blade can be increased, and meanwhile, the cool gas in an inner cavity of the blade is guided, and the flowing direction of the cool gas is turned; and according to the trailing edge slit cooling structure, a cool gas flowing path is lengthened favorably, so that the cool gas is utilized more fully, the convective heat exchange area is increased, boundary layers are restrained, and theheat exchange effect is enhanced.

Belonging to the technical field of sewage recycling treatment, the invention relates to an integrated device and method for efficient magnesium ammonium phosphate crystallization and solid-liquid separation. A mixed reaction crystallization zone is connected to water intake pumps; a solid-liquid separation zone is disposed between an inner cylinder and an outer cylinder; a buffer zone is under the mixed reaction crystallization zone; an MAP sludge zone is disposed in a cone at the bottom of a reactor, and the bottom is connected to a large aperture valve; a water outlet zone is arranged at the top of the reactor, and employs an overflow water discharge way. The reactor operation includes crystallization reaction and solid-liquid separation processes. The reactor device adopts rapid mechanical stirring way to accelerate crystallization reaction, thus improving the reactor treatment capacity; at the same time, a baffled continuous flow treatment way with the same inflow and outlet waterdirection is employed to prolong the flow path of materials in the reactor, so that the crystallization reaction and solid-liquid separation process can be more complete; by setting an inclined platein the solid-liquid separation zone, efficient solid-liquid separation can be achieved, and MAP loss and secondary pollution can be avoided during water discharge.

The invention relates to a heat exchanger device, in particular to an efficient drum type heat exchanger which comprises an outer drum, wherein an inner drum is arranged in the middle of the outer drum, and the interior of the inner drum is communicated with the exterior of the inner drum. At least one coil pipe set is arranged between the inner wall of the outer drum and the outer wall of the inner drum, and the coil pipe set coils the inner drum in a spiral mode. The coil pipe set comprises a first spiral coil pipe and a second spiral coil pipe, wherein the first spiral coil pipe and the second spiral coil pipe are in the same structure. Each spiral coil pipe is divided into two segments with different coiling diameters, and one end, with a small coiling diameter, of the second spiral coil pipe screws in from one end, with a large coil diameter, of the first spiral coiling pipe, and one end, with a large coiling diameter, of the second spiral coil pipe is coiled on the outer side of one end, with a small coiling diameter, of the first spiral coil pipe. The efficient drum type heat exchanger has the advantages of being capable of effectively improving heat exchange efficiency, strengthening heat exchange effect, and the like.

The invention discloses a continuous conveying double-face air drying device for eel roasting. The continuous conveying double-face air drying device comprises a conveying device, an air blowing device, an air drying bin and a filtering device; the conveying device is used for feeding eels needing to be subjected to air drying into the air dying bin, and hot air blown out from the air blowing device conducts air drying treatment on the eels in the air drying bin after being filtered by the filtering device; the air drying bin comprises an air purifying and filtering bin and an air drying mainbin; the filtering device is arranged in the air purifying and filtering bin and comprises a feeding roller, a filter felt and a winding roller; and the air drying main bin is internally provided witha gear ring, a planet gear, a center shaft and a connection rod, the planet gear is provided with a protrusion, and the protrusion can rotate into guide grooves of a four-corner rotation piece and drive the four-corner rotation piece to do angular motion. The invention further discloses an eel air drying method. The continuous conveying double-face air drying device for eel roasting and the eel air drying method have the advantages that feeding is conducted, the air drying continuity is high, automatic turning over can be achieved, and the air drying cleanliness is high.

The invention relates to a power supply cooling unit which comprises at least two plates (a first plate (1) and a second plate (2)) which are arranged in a laminated mode, wherein the peripheries of the plates are fixedly connected in a hermetic mode; a coolant flow channel is arranged between every two plates; the central heat exchange region of at least one plate in every two adjacent plates is provided with a surface pattern and a barrier section (6); the length of the barrier section (6) is less than that of the plate; after the adjacent plates are fixedly connected in a hermetic mode, the barrier sections (6) of the adjacent plates mutually compact and contact, or the barrier section (6) on one plate and the other plate mutually compact and contact, so that the coolant flow channel is intercepted into a U-shaped route by the barrier section; and the surface pattern sinks to the inside of the coolant flow channel, and is arranged approximately along the U-shaped flow route of the coolant, thereby maximally prolonging the flow time of the coolant in the cooling unit.

The invention discloses a rotary cutting, crushing and grinding equipment of Gastrodia elata, comprising a crushing cylinder, a rotating blade, a material storage box, a movable grinding roller and a rotary cutting blade. A rotating shaft is directly installed, the top of the rotating shaft is welded with a rotary cutting blade, the rotating shaft above the rotary cutting blade is welded with several rotating blades, and the lower side of the rotating blade is provided with staggered fixed blades; the rotating shaft below the rotating blade is installed on the rotating shaft There are moving grinding rollers, fixed grinding rollers are installed in the grinding cylinder outside the moving grinding rollers, and the fixed grinding rollers are fixed on the inner wall of the grinding cylinder, which is convenient for adding the wild Gastrodia to be ground, and prolonging the operation between the fixed grinding roller and the moving grinding roller. It can improve the effect of fully grinding Gastrodia elata, and improve the efficiency and effect of rotary cutting, crushing, grinding and discharging of Gastrodia elata.

The invention provides a micro-channel heat exchanger with multiple flow path interconnection structures and a method for manufacturing the micro-channel heat exchanger. The micro-channel heat exchanger comprises a metal micro-channel substrate. The substrate is provided with a plurality of open circular ring structures which are parallelly arranged along the flow direction of cooling liquid and are distributed to form arrays, each open circular ring structure comprises four outer first arc-shaped fins and two inner second arc-shaped fins, the four first arc-shaped fins of each open circular ring structure are circumferentially uniformly arranged at intervals, and the two second arc-shaped fins of each open circular ring structure are symmetrically arranged, so that large open circular rings and small open circular rings which are nested in the large open circular rings can be formed. A front slit, a rear slit, an upper slit and a lower slit are respectively formed by each large open circular ring in the directions parallel and perpendicular to the flow direction of the cooling liquid, a front slit and a rear slit are formed by each small circular ring in the directions parallel to the flow direction of the cooling liquid, and multiple flow path interconnection channels are formed by the slits. The method includes processing multiple flow path interconnection micro-channel structures by the aid of laser milling technologies; packaging upper cover plates by the aid of heat-resistant glass to obtain the micro-channel heat exchanger. The micro-channel heat exchanger and the method have the advantages that processes for manufacturing the micro-channel heat exchanger are simple, the micro-channel heat exchanger and the method are low in cost, and boundary layers can be destructed, so that micro-channel heat exchange can be enhanced.

The invention discloses a novel lower-pressure-drop distribution plate applicable to a multilayered bed. The novel lower-pressure-drop distribution plate comprises sieve holes (1), an overflowing weir (2), a material dropping hole (3), large-hole nozzles (4) and matched air caps (5) thereof, a flange edge (6) and flange holes (7), wherein the distribution plate is an incomplete round plate and a notch is the material dropping hole (3); the overflowing weir (2) vertical to the distribution plate is arranged at the edge of the notch; the large-hole nozzles (4) are uniformly distributed on the plate and are matched with the air caps (5); air cap small holes (18) are uniformly distributed in the air caps (5); the sieve holes (1) are formed among the large-hole nozzles at intervals; and the edge of the distribution plate is the flange edge (6) and is provided with the flange holes (7). With the adoption of the novel lower-pressure-drop distribution plate, the pressure drop of the multilayered bed can be effectively reduced, and gas-liquid flowing is disordered; the contact area between flue gas and a solid purifying agent is large, and a gas flowing path is long, so that enough gas retention time is guaranteed; and the flue gas is in sufficient reaction with the solid purifying agent, and the novel lower-pressure-drop distribution plate has operational flexibility.

The invention relates to the technical field of turning, and discloses a blade drilling device for an electric fan. The blade drilling device comprises a frame, a cooling box, a worktable, a work chamber and a fixture box, a drilling device positioned on the upper portion of the worktable is arranged on the frame, the cooling box is communicated with a liquid outlet pipe, the drilling device is fixedly connected with a fixing block, the work chamber and the fixture box are positioned on the lower portion and the upper portion of the worktable, the upper surface of the work chamber is providedwith a collection opening, a first piston plate is vertically and slidably connected into the work chamber, a first connecting rod is fixedly connected between the first piston plate and the fixing block, a second piston plate is vertically and slidably connected into the fixture box, the side wall of the fixture box is fixedly connected with a heating device, a pressing block is vertically and slidably connected onto the frame, a second connecting rod is fixedly connected between the pressing block and the second piston plate, a second one-way liquid outlet valve is arranged on the side wallof the work chamber, and a cooling pipe is communicated between the second one-way liquid outlet valve and the cooling box. The blade drilling device is used for drilling fan blades, and cooling liquid can be timely supplemented.

The invention discloses a cooling device for a numerical control fan, and belongs to the technical field of fan cooling. The cooling device comprises a casing. An impeller is arranged inside the casing. An air inlet is formed in the surface, corresponding to the position of the impeller, of the casing. The surface, corresponding to the air inlet, of the casing is detachably connected with a purification device. Through the effective coordination of the designed purification device, spiral tubes, refrigeration fins, coolant and a noise reduction shield, impurities can be prevented from adheringto a bearing box, so as to not only prevent the impurities from increasing the friction between a spindle and a bearing in the bearing box, but also ensure the cooling effect of air flowing in an airchannel on cooling water or lubricating oil flowing in the cooling channel. A motor can be cooled. To a certain extent, the cooling device can reduce the heat generated by the motor during operationand is transmitted to the bearing in the bearing box through the spindle, so that the bearing in the bearing box can be further protected and the stability of the bearing in the bearing box can be ensured.

The invention discloses an artificial wetland sewage treatment system, which comprises a sedimentation tank, an aeration tank, a microelectrolysis packing drum, a first reaction tank, a second reaction tank, a third reaction tank, a water collection tank and a control system in sequential arrangement from left to right. The first reaction tank, the second reaction tank, the third reaction tank andthe water collection tank are arranged sequentially from left to right; each of the first reaction tank, the second reaction tank and the third reaction tank comprises a heat insulation layer, a gravel packing layer, a mud-free grit packing layer, a zeolite base material layer, a coal ash base material layer, lower partition plates, an anti-permeation membrane and upper partition plates. The artificial wetland sewage treatment system has advantages that quick discharging of precipitates and segmental combined treatment can be realized, and excellent nitrogen and phosphorus removal effects areachieved.

The invention relates to an exhaust bearing pedestal, a screw compressor and an air conditioning unit. An exhaust opening is formed in the exhaust bearing pedestal; an opening of the exhaust opening is designed as follows: under a condition that the exhaust bearing pedestal is covered in a shell, gas exhausted by the exhaust opening is provided with a component which does rotational flowing along the inner wall of the shell around the axial line of the shell. The exhaust opening is formed in the exhaust bearing pedestal disclosed by the invention, so that air can be guided to do rotational flow along the inner wall surface of the shell around the axial line of the shell; therefore, the flowing path of air in the shell is lengthened, and noise caused by air pulse is reduced.

The invention relates to a multifunctional spiral plate dephlegmator and a working method thereof. The multifunctional spiral plate dephlegmator comprises a dephlegmator barrel body and a fluid baffle, a cone spiral separating unit, a spiral plate heat exchange device and a fluid collection device which are successively arranged from top to bottom inside the dephlegmator barrel body. The spiral plate heat exchange device is composed of a coil plate 1, a coil plate 2, a connection reinforcing plate, a side blocking plate, an end blocking plate, a circulating water feeding port and a circulatingwater outlet, which together form a spiral circulating water channel and a mixed steam channel communicated with the inner space of the dephlegmator barrel body. Octagonal cloud-shaped bulges are arranged in the circulating water channel, and spiral bulges and octagonal cloud-shaped bulges are disposed in the mixed steam channel. These bulges have functions of self-supporting, turbulence, condensation, fluid collection, etc., thus increasing heat exchange area and improving heat transfer efficiency. Through multiple times of gas-liquid separation, a condensate is captured to a greater extentto prevent the water vapor from being taken away and avoid from affecting the subsequent process.

The invention provides an integrated structure of a drive controller and a direct current converter. The integrated structure comprises a drive controller shell, an upper cover plate, a direct current converter shell and a lower cover plate, wherein the direct current converter shell is fastened with the drive controller shell in a vertical direction, the bottom wall of the drive controller shell is provided with an upper surface and a lower surface, the upper surface is provided with a first grooved water channel which is provided with a water inlet and a backwater inlet, the first water channel is covered with a heating module in the drive controller, the lower surface is provided with a second grooved water channel, the second water channel is covered with the direct current converter shell, the water inlet and backwater inlet of the first water channel are communicated with the second water channel to enable all or part of the cooling liquid flowing in the second water channel to enter into the first water channel through the water inlet and flow back into the second water channel through the backwater inlet. The integrated structure of the driving controller and the direct current converter has the advantages of higher integration level and better cooling effect.

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

The invention relates to a water cooling system of an ironmaking furnace top distributing gear. The distributing gear comprises a rotary mechanism consisting of an upper rotary cylinder (4) and a lower rotary cylinder (6). At least one stage of platform (6-1) is arranged on the lower rotary cylinder (6). The water cooling system also comprises a water inlet pipe (2) and a water outlet pipe (10); the key of the water cooling system is that the water inlet pipe (2) penetrates through a distributing gear box (1) to be communicated with a rotary water tank (3) which is fixed at the rotary mechanism of the distributing gear. The water outlet pipe (10) is communicated with a fixed water tank (8) which is arranged at the outer side of the lower rotary cylinder (6) and is separated from the lower rotary cylinder (6). The lower part of the rotary water tank (3) is provided with a hole (3-1). The rotary water tank (3) is communicated with the fixed water tank (8) by the hole (3-1). The water cooling system has good cooling effect, convenient installation and maintenance and long service life and can be applied to various distributing gears of ironmaking furnace engineering.

The invention relates to the technical field of purification equipment, and especially relates to waste gas emission treatment equipment. By purifying waste gas, the purity of the waste gas can be effectively improved, the content of impurities in the waste gas can be reduced, harmful substances in the waste gas can be fully adsorbed and separated conveniently, the waste gas is prevented from being discharged to the outside and damaging the environment, meanwhile, the waste gas is prevented from damaging a human body after entering the human body, and practicability and reliability are improved. The equipment comprises a treatment bin, four sets of supporting legs, a gas pump, a first gas pipe, a second gas pipe and a gas dispersing bin, the four sets of supporting legs are evenly installed at the bottom of the treatment bin, a storage tank communicates with the lower right side in the treatment bin, a filtering device is arranged on the left side of the top of the treatment bin, and the gas pump is installed on the right side of the filtering device.