284results about How to "Reduce flow rate" patented technology

The utility model relates to a reaction kettle which comprises a kettle body and a driving mechanism arranged on the kettle body, a guide cylinder and a stirrer linked with the driving mechanism are arranged in the kettle body, a plurality of transverse baffle rings are arranged on the inner circumferential wall of the guide cylinder, and a plurality of openings positioned on the lower side of each transverse baffle ring are formed in the circumferential wall of the guide cylinder. An annular frame linked with the driving mechanism is further rotatably arranged on the peripheral wall of the flow guide cylinder, a plurality of arc-shaped plates capable of covering the openings are arranged on the annular frame, the number of the arc-shaped plates corresponds to that of the openings, and when the annular frame rotates, the arc-shaped plates alternately open or close the openings, so that the flow in the flow guide cylinder flows from top to bottom under the action of the stirrer, and the flow in the flow guide cylinder is uniform. The flowing sectional area of the fluid at each transverse baffle ring is shrunk and expanded, so that the fluid is accelerated and then decelerated, and multi-stage shearing and turbulent flow are generated; meanwhile, the opening circulation on the guide cylinder is opened and closed, so that the dynamic change of the flow field structure between multi-stage shunting circulation and single bottom return is realized, and the mixing efficiency of the reaction kettle is improved.

The utility model provides a discharge tower for salt production, which comprises a feeder, a drying roller, a discharge tower and a heat source area, the feeder for feeding wet materials and the discharge tower for discharging dry materials are respectively arranged at the head end and the tail end of the drying roller, and the head end of the drying roller is communicated with the heat source area positioned obliquely below the drying roller; the discharging tower comprises a three-way valve, an air pipe, a discharging port, a tower body, a first air outlet and a second air outlet. Cold air and hot air in the cold air area and the hot air area are used as media, when the temperature of the tower body is high, the cold air enters the air pipe for cooling, and when the temperature of the tower body is too low, the hot air enters the air pipe for heating, so that the temperature of the tower body is maintained at 55-100 DEG C, dried edible salt particles cannot be damped, and the temperature of the edible salt particles is gradually reduced.

The utility model belongs to the technical field of waste heat utilization equipment, and particularly relates to a waste heat boiler which comprises a waste heat boiler body and supporting legs, a waste heat recovery structure is arranged above the waste heat boiler body and comprises a filtering mechanism and a recovery mechanism, and the filtering mechanism comprises a supporting plate, a gas guide pipe, an installation plate, a fixing plate and a rotating rod. The top of the supporting plate is connected with the bottom of the recycling box, one end of the waste heat boiler communicates with one end of the gas guide pipe, and the two ends of the mounting plate are connected with the inner wall of the recycling box. According to the waste heat boiler, after flue gas enters the recycling bin, the flow speed is reduced, the retention time is prolonged, the filter screen can effectively intercept solid impurities in the flue gas, pollutant emission is reduced, environmental pollution is avoided, impurities accumulated on the surface of the filter screen can be automatically removed, blocking is prevented, and the filtering efficiency is maintained; and meanwhile, the filter screen can be quickly and conveniently disassembled and assembled, and the working efficiency of the waste heat boiler is improved.

This invention relates to the field of waste gas treatment technology, and discloses a centralized waste gas purification device and process for industrial smelting production. The centralized waste gas purification device for industrial smelting production includes a settling chamber shell. A rectangular frame is arranged above the dust collection hopper of the settling chamber shell. Multiple dust collection plates are horizontally and linearly distributed at equal intervals within the rectangular frame. A movable plate is arranged between adjacent dust collection plates. Multiple air guides are vertically arranged at equal intervals on both sides of the movable plate. Driving components are installed on both sides of the settling chamber shell. The inclined air guides forcibly change the airflow direction and extend the flow path. On the one hand, this increases the residence time of particles, which is beneficial for large particles to escape the airflow and fall into the dust collection hopper. On the other hand, it drives small dust particles to move to the vicinity of the dust collection plates, where the electret material of the dust collection plates can adsorb the small dust particles.

The utility model relates to the technical field of side slope protection, especially relates to a soil intercepting device of road side slope. Including side plate, baffle, support beam and mounting plate etc. have left and right two, the side plate is connected with two baffles before and after between side plate, the baffle is connected with left and right two support beams between baffle, the side plate is connected with a plurality of mounting plate between side plate, and the mounting plate is all connected with support beam. The utility model discloses when rainwater flows to the water baffle, the water flow is dispersed to both sides through the water baffle, and then is guided to the downward through the flow guide plate, so that the rainwater flows out downward through the baffle, reaches the effect that can disperse and guide the water flow, slows down the flow velocity of the water flow, reduces the scouring effect of the water flow to the side slope.

The utility model belongs to the field of ore dressing relates to a kind of flotation machine ore separation box, including T-shaped partition, the T-shaped partition is installed in the ore separation box, and the ore separation box is divided into two parts of feed tank and distribution tank;The T-shaped partition includes vertical plate perpendicular to the bottom surface of the ore separation box and horizontal plate parallel to the bottom surface of the ore separation box and fixed on the top of the vertical plate;The length of the vertical plate is equivalent to the length of the ore separation box, the height of the vertical plate is not more than 1 / 2 of the height of the ore separation box;The length of the horizontal plate is equivalent to the length of the ore separation box.The technical scheme of the application can delay the flow rate of ore pulp, which is beneficial to uniform ore separation and improves the flotation effect;At the same time, the ore can be ground, and the bottom plate after modification will not be impacted by the ore pulp.

The utility model relates to the technical field of new energy batteries, and discloses a single battery and a battery pack, the single battery comprises: a housing having an accommodating cavity; the electrode assembly is arranged in the accommodating cavity; the cover plate comprises a top cover piece and lower plastic, and the top cover piece is provided with a liquid injection hole; the lower plastic comprises a body and an abutting table, the abutting table comprises a side plate and a bottom plate connected with the side plate, the body is fixedly connected with the side plate, the bottom plate abuts against the electrode assembly in the first direction, a slow flow cavity is defined by the side plate, the bottom plate and the top cover piece, the slow flow cavity is communicated with the liquid injection hole, the liquid injection hole and the bottom plate are oppositely arranged in the first direction, and the side plate is further provided with an opening. The opening communicates with the slow flow cavity and the containing cavity. When the electrolyte is injected, the electrolyte impacts the bottom plate in the first direction, slows down in the slow flow cavity and then enters the containing cavity through the opening, and the electrolyte is prevented from directly impacting the electrode assembly; the bottom plate abuts against the electrode assembly in the first direction, enough electrolyte buffer space can be guaranteed, and the phenomenon of liquid overflow is avoided.

The application discloses a hot water boiler based on a porous medium burner, which comprises a hot water boiler shell, wherein the hot water boiler shell comprises a boiler barrel, the outer side of the boiler barrel is provided with a water jacket for storing water, and the inside of the boiler barrel is fixedly provided with a porous medium burner; the inner cavity of the porous medium burner comprises a combustion reaction zone, the two ends of the combustion reaction zone are provided with anti-backfire areas, the two ends of the porous medium burner are provided with mixed gas inlets, the mixed gas inlets are connected with mixed gas input pipelines, one end of the mixed gas input pipelines extends out of the hot water boiler shell and is connected with a gas fuel supply device; the porous medium burner is internally provided with an ignition device, mixed gas flows into the combustion reaction zone from the mixed gas input pipelines and is ignited by the ignition device, heat generated by combustion of the mixed gas heats water in the water jacket, flue gas is discharged from the combustion reaction zone through the pores of the porous medium of the porous medium burner and is discharged into a flue gas treatment mechanism connected with the hot water boiler shell, the gas utilization rate is improved, and the heat diffusion speed is slowed down.

The utility model relates to the technical field of valves, in particular to a butterfly valve which comprises a valve body, a butterfly plate, a valve seat, a valve rod and an executing mechanism, the valve seat is arranged on the side, close to an outlet flow channel, of the butterfly plate, an overflowing assembly is further arranged on the side, corresponding to the valve seat, of the inner wall of the valve body, and the overflowing assembly comprises a first annular hole plate. At least one first overflowing hole for a medium to pass through is formed in the first annular pore plate, and the first overflowing hole is located in the end, close to the sealing matching position of the butterfly plate and the valve seat, of the first annular pore plate. The overflowing assembly is arranged on the side, close to the outlet flow channel, of the valve seat, and the flowing speed of the medium can be reduced through the overflowing assembly; the cavitation phenomenon of a medium is restrained, damage to a pipeline is reduced, and the service life of the butterfly valve is prolonged.

The utility model relates to water quality detection technical field discloses a pH electrode protection device for water quality detection, including water pipe, protection shell and baffle, water pipe includes electrode connection pipe department, water inlet pipe department and water outlet pipe department of integral intercommunication, electrode connection pipe department is used for supplying the measurement part of pH electrode to penetrate, water inlet pipe department and water outlet pipe department are all used for connecting pipeline, and the filter screen is equipped in water inlet pipe department, is used for filtering the big granular object in the water body of measurement, protection shell is detachably established on electrode connection pipe department, and the positioning groove is equipped in protection shell, is used for accommodating and positioning the main part of pH electrode, the baffle is fixedly established on protection shell, and is located between water inlet pipe department and the measurement part of pH electrode, and the baffle is uniformly equipped with a plurality of water passing holes, and the water passing hole is used for filtering the small granular object in the water body of measurement, the utility model can solve how to reduce the problem of the friction, scouring and impact effect of high -speed water flow and granular object in pipeline to pH electrode, and protect pH electrode.

The utility model provides commercial gas noodle cooking equipment, which belongs to the technical field of noodle cooking furnaces and comprises a water storage structure, the water storage structure comprises a concave container and a heating mechanism, the heating mechanism can spray high-temperature airflow outwards, an air inlet pipe is arranged at an air outlet of the heating mechanism, the end of the air inlet pipe penetrates through the outer wall of the concave container, and a heating cavity is arranged at the end of the air inlet pipe. High-temperature air flow of the heating mechanism can enter the heating cavity through the air inlet pipe, so that the heating cavity heats the liquid in the concave container; an exhaust assembly is arranged on one side of the heating cavity and can exhaust high-temperature gas in the heating cavity, and meanwhile liquid in the concave container cannot enter the heating cavity; the heating source is not limited to the bottom of the water tank by heating from the inside of the water tank, so that the heating area of the water source is enlarged, water in the water tank can be heated more quickly, and the heating efficiency is improved.

The utility model provides a slope runoff buffering water and soil conservation device, and aims to solve the problem of slope water and soil loss. The device is mainly composed of a slope buffering water and soil retaining plate and a flexible intercepting belt plate component. Flexible band plate radian adjusting pneumatic cylinders are arranged on the linkage plates on the two sides of the flexible interception band plate top plate, and the radian of the flexible band plate radian adjusting pneumatic cylinders can be adjusted through flexible band plate radian adjusting pneumatic rods and radian adjusting pneumatic rod tripods. The outer plate of the slope surface buffering water and soil conservation plate is provided with a buffering intercepting grating frame, the outer edge of the flexible intercepting belt plate is connected with a slope bottom arc-shaped grating frame, and buffering adjusting gratings with buffering strips are arranged on both the buffering intercepting grating frame and the slope bottom arc-shaped grating frame. In addition, a grid frame adjusting pneumatic cylinder and an arc-shaped grid frame adjusting pneumatic cylinder are arranged on the buffering and intercepting grid frame and the flexible intercepting belt plate correspondingly, and the position of the buffering and adjusting grid can be adjusted. The device can flexibly adapt to different slope runoff conditions, effectively buffer and intercept runoff and reduce water and soil loss, and has a good water and soil conservation effect and wide applicability.

The utility model provides a gas-liquid separation structure and a coffee brewing machine. The gas-liquid separation structure is used for being installed and fixed in a machine body of the coffee brewing machine and comprises a shell and a flow blocking assembly. The shell is used for being installed and fixed in a machine body, a gas-liquid separation cavity is formed in the shell, and a liquid inlet, a liquid outlet and an exhaust port which are communicated with the gas-liquid separation cavity are further formed in the shell; the flow blocking assembly is fixedly installed in the gas-liquid separation cavity and arranged opposite to the liquid inlet, the flow blocking assembly divides the gas-liquid separation cavity into a first slow flow area, a second slow flow area and a third slow flow area which are sequentially communicated, the first slow flow area is located at the first end of the shell and communicated with the liquid inlet and the second slow flow area, and the third slow flow area is located at the second end of the shell and communicated with the liquid inlet and the third slow flow area. The third slow flow area is located at the second end of the shell and communicated with the liquid outlet and the second slow flow area, and the second slow flow area is located between the first slow flow area and the third slow flow area. The gas-liquid separation structure can effectively improve the brewing effect of coffee.

The application provides a kind of wisdom gas terminal energy-saving control Internet of Things system and method, it is related to Internet of Things technical field, this method is based on the wisdom gas management platform of wisdom gas terminal energy-saving control Internet of Things execution, including: by wisdom gas object platform obtains the gas use data and gas image data of target user;Based on gas use data, gas image data determines combustion state distribution;In response to the combustion state distribution meets preset condition, based on combustion state distribution determines energy-saving parameter;And based on energy-saving parameter determines energy-saving instruction and driven adjustment instruction, to adjust the valve opening of valve control device based on energy-saving instruction and driven adjustment instruction.The combustion state is evaluated, and the energy-saving parameter is adjusted according to the state of combustion, so as to appropriately reduce the gas flow rate, in the case of ensuring that the provided gas flow rate meets the user demand, the effect of energy saving and environmental protection is achieved.

The utility model discloses a sand core structure for casting a casting through hole, which belongs to the technical field of casting processing, and is technically characterized by comprising a first casting box and a second casting box arranged above the first casting box, and the first casting box is connected with the second casting box through bolts; the flowing path of a metal solution is prolonged through the design of the snakelike groove, the flowing speed is remarkably reduced, the gas entrainment risk caused by turbulent flow is reduced, the angle of the first positioning shell and the position of the discharging hopper can be rapidly adjusted through the arrangement of the sliding rail, the adjustable first supporting rod and the adjustable second supporting rod and the linkage design of the multiple clamping grooves, and the working efficiency is improved. The feeding port of the sand core body is accurately matched, gas in a cavity can be efficiently exhausted through the exhaust hole with the inclined angle and an active exhaust and multi-stage exhaust system of the exhaust fan, air holes are prevented from being formed, and therefore the surface smoothness and the internal compactness of a casting are greatly improved.

This utility model provides a shampoo and hair care ingredient release device, belonging to the technical field of release devices. It includes a storage bottle body and a storage bottle cap. A pump-feeding bottle body is mounted on the storage bottle body, and a piston is installed inside the pump-feeding bottle body. A one-way valve is located at the bottom of the pump-feeding bottle body. A pump head is located above the storage bottle cap, and a pump body is located inside the storage bottle cap. An adjustment knob is located on the top of the pump head, and a flow-limiting head is located below the adjustment knob. A stirring component for stirring is located at the bottom of the storage bottle body. The user can drive the piston inside the pump-feeding bottle body to move, replenishing the hair care ingredients in the pump-feeding bottle body into the shampoo in the storage bottle body through the pump nozzle and the one-way valve. This improves the flexibility of adding hair care ingredients, and the pump head can buffer the pumped shampoo to prevent it from being pumped too far, thus improving the dispensing stability of the device.

The utility model provides a substrate carrier provided with a diversion trench. The substrate carrier comprises a carrier body, a recess, a flow guide groove and a gas uniformizing groove, and a driving gas input channel is arranged in the carrier body; the recess is arranged on the bearing surface of the carrier body and is used for bearing a substrate; the diversion trench is arranged on the inner bottom surface of the recess, and the starting end part of the diversion trench is communicated with the driving gas input channel, so that driving gas flows into the diversion trench and drives the substrate to rotate; the gas uniformizing groove stretches across the extending path of the tail end of the flow guide groove, so that the driving gas escaping from the tail end is buffered through the gas uniformizing groove, and the diffusion range is expanded. According to the application, the problem that the process gas flow field above the substrate is obviously disturbed and the film forming quality is not facilitated due to the fact that impact turbulent flow is generated by the driving gas escaping from the diversion trench in the substrate and a plurality of local areas at the edge of the recess is reduced or avoided.

The utility model relates to pipe hoop formula high pressure exhaust nozzle, including sealing sheet and install the nozzle assembly on sealing sheet, the nozzle assembly includes: pressure relief spare, the medium flow channel is opened in pressure relief spare, and the cap body is rotatoryly arranged outside pressure relief spare, the first export and the second export are opened in cap body, the output direction level of first export, the output direction vertical of second export, the cap body transforms between first state and second state when rotating around pressure relief spare, first state, the medium flow channel is connected first export, second state, the medium flow channel is connected second export, the utility model discloses through setting up rotatable cap body outside pressure relief spare, and the communication state of first export of horizontal direction and second export of vertical direction and medium flow channel is switched with rotation, realizes the flexible adjustment of exhaust direction between side and top, breaks through the limitation of traditional exhaust nozzle fixed exhaust direction.

The invention discloses a transformer capable of reducing loss, and relates to the technical field of transformers, the transformer comprises a shell and an adjusting assembly, a guide plate is arranged at the upper part in the shell, a housing is arranged in the middle of the guide plate, the adjusting assembly is arranged at the inner side of the housing, the adjusting assembly comprises a shaft rod, and the shaft rod is arranged at the inner side of the housing; an adjusting cavity is formed in the lower portion of the shaft rod. When the device is used, the device can be automatically adjusted according to the temperature change in the transformer, so that when the temperature rises, the circulating flowing speed of oil liquid is increased, heat dissipation is accelerated, the heat dissipation efficiency of the device is positively correlated to be matched with the temperature change of the device, it is guaranteed that the device can dissipate heat in time, and the service life of the device is prolonged. According to the device, the temperature of the oil liquid is increased, additional loss increase caused by too high temperature is avoided, oil sludge mingled in the oil liquid can be separated and removed when the oil liquid is circulated, and the situation that the oil sludge adheres to the device, the heat dissipation performance of the device is reduced or the additional loss of the device is increased is avoided.

The application discloses an oil level gauge conduit and a forming equipment thereof, relates to the technical field of engine lubricating systems, and aims to solve the technical problem that traditional oil level gauge conduits are difficult to balance the sealing performance and the installation convenience, and comprises an oil level gauge conduit body, a mounting pipe and a sealing ring. The application improves the contact area with the oil pan opening by setting the sealing ring, thereby improving the sealing performance. Through the structural design of the mounting pipe, the nut is moved relative to the thread groove by rotating the wrench, the mounting pipe is inserted into the sealing ring, the support rod provides axial support for the sealing ring, the axial folding of the sealing ring is prevented, and when the mounting pipe is completely inserted into the sealing ring, the sealing ring is expanded and tightly contacts with the oil pan opening. The installation mode is more time-saving and labor-saving compared with the traditional direct hard insertion mode, and the technical problem that the traditional oil level gauge conduit is difficult to balance the sealing performance and the installation convenience is solved.

The utility model relates to the technical field of adhesive mixing, specifically is a kind of adhesive mixing ratio graduated cylinder, including exhaust component and liquid outlet component, the exhaust component is by measuring cylinder, ladder piece, exhaust cover, rubber airbag and one-way valve constitute, the inside wall of measuring cylinder is fixedly connected with ladder piece, the top of measuring cylinder is clamped with exhaust cover, the inner wall one end of exhaust cover is fixedly connected with rubber airbag.This adhesive mixing ratio graduated cylinder is provided with measuring cylinder, ladder piece, exhaust cover, rubber airbag and one-way valve, when using, staff pours adhesive mixing stock solution into measuring cylinder, stock solution continuously passes ladder piece on the inner wall of measuring cylinder to slow down its flow rate (the reduction of flow rate can reduce bubble in source), when there is still bubble in it, staff can clamp exhaust cover into measuring cylinder, and finger is pressed on the top of exhaust cover.

This utility model relates to the field of sedimentation separator technology, and discloses a high-efficiency sedimentation separator for purifying ferrous sulfate byproducts from titanium dioxide waste. It includes a separation tank, with a separation mechanism fixedly connected to the middle of the inner wall of the tank. This separation mechanism is used to thoroughly remove internal contaminants. A sealing mechanism is fixedly connected to the top of the outer wall of the separation mechanism to seal the separator. An inspection mechanism is fixedly connected to one side of the outer wall of the separation tank. The separation mechanism includes a feed pipe, which is fixedly connected to the top of the outer wall of the separation tank. In this utility model, the ferrous sulfate byproduct solution from titanium dioxide waste enters through the feed pipe, and the reagent is introduced through the discharge pipe and the diversion pipe. A motor drives the stirring blades to rotate, preventing leakage and the entry of impurities. The clarified liquid is discharged from the discharge pipe, and a portion can be returned through the diversion pipe. The inspection mechanism is used to monitor the liquid level, water quality, and equipment status to ensure operational effectiveness.

This application relates to the field of vacuum pumps, and more particularly to a vacuum pump drainage device, comprising a vacuum pump, a return water pump, and a return water well. The vacuum pump, the return water pump, and the return water well are sequentially connected via a return water pipe. Multiple vacuum pumps are provided, and at least one water collection tank is provided between each vacuum pump and the return water pump. The end of the water collection tank closest to the vacuum pump is open, and the height difference between the bottoms of two adjacent water collection tanks is 10-20 cm. This application has the effect of ensuring smooth water return from the vacuum pump and eliminating air trapped in the return water pipe.

The utility model relates to electronic cigarette smoking set accessory technical field, concretely relates to a multilayer precision filter screen support for tobacco tar filtering, the utility model provides a multilayer precision filter screen support for tobacco tar filtering, including the support main part of cylindrical, its top is equipped with the oil inlet, and the bottom is equipped with the oil outlet, the inside of support main part is successively coaxially provided with three layers filter screen units along the direction of tobacco tar flow, the mesh count of filter screen unit gradually increases along the direction of oil inlet to oil outlet, forms gradient filtering channel, the edge of filter screen unit is fixed with the inner wall of support main body through the fusion of flange and is fused, through 80-120 mesh (coarse filter) 150-200 mesh (medium efficiency) 300-500 mesh (fine filter) three -level gradient mesh count design, can intercept big, medium, small particle size impurities gradually, avoid the problem that single -layer filter screen is blocked fast because of impurity accumulation, significantly improves the impurity separation efficiency.

The invention relates to the technical field of gynecological medical instruments, in particular to a medicine auxiliary device for treating vagina inflammation. The medicine taking auxiliary device for treating vagina inflammation comprises a box body, a controller, universal wheels, a handle, a medicine discharging mechanism and a medicine applying mechanism, the controller is installed at the top of the box body, the handle is connected to the top of the box body, the universal wheels are installed at the four corners of the bottom of the box body, and the medicine discharging mechanism and the medicine applying mechanism are arranged in the box body. Liquid medicine in the medicine cylinder is pumped out through the liquid pump, the liquid medicine flows through the medicine applying grab handle through a pipeline and then flows into the medicine applicator, then the first motor drives the transmission gear to rotate and the medicine applicator to rotate, and the liquid medicine flows out of the uniform medicine outlets in the medicine applicator and is uniformly applied to the vagina of a patient; the medicine liquid in the vagina of a patient is uniformly applied through the spiral convex lines on the applicator, so that the medicine liquid can play a better role, and the treatment effect is improved.

The utility model relates to the technical field of thin oil pipelines, in particular to an efficient flushing and filtering device for a thin oil pipeline. Comprising a main pipe, an oil inlet connector, an oil outlet connector, a cooling structure and a filter screen. The oil inlet connector and the oil outlet connector are fixedly connected to the two ends of the main pipe respectively, the oil inlet connector is connected with the oil outlet pipe, and the oil outlet connector is connected with an oil return opening pipeline of the oil tank. The cooling structure is installed on the outer wall of the main pipe and cools liquid in the main pipe. First to N stages of filter screens are sequentially arranged between the oil inlet connector end and the cooling structure, N is larger than or equal to 3, and more than N stages of filter screens are arranged between the cooling structure and the oil outlet connector. A thin oil pipeline, especially a thin oil pipeline with a certain length, can be efficiently flushed and filtered; the structure is simple, use is easy, and cost is greatly saved.

The present application belongs to the field of metallurgy, and particularly relates to a method for stopping blast furnace and lowering material surface, comprising the following contents: (1) adjusting the furnace operation before stopping; (2) adjusting the stopping material and optimizing the material distribution matrix; (3) pre-turbine, replacing the tuyere small sleeve and controlling the furnace top temperature; (4) stopping and lowering the material surface: 1. increasing the ratio of top pressure and hot blast pressure: the ratio of top pressure and hot blast pressure is increased to 0.68-0.75; 2. taking different degrees of control on the top temperature when the material surface is at different positions of the blast furnace: (1) when the material surface is above 1 / 2 of the bosh, the top temperature is controlled at 320-350 DEG C; (2) when the material surface is below 1 / 2 of the bosh, the top temperature is controlled at 280-300 DEG C; 3. spraying coal powder, oxygen enrichment, increasing and continuously maintaining the nitrogen gas injection of the tuyere after stopping the coal injection; 4. controlling the gas composition; 5. controlling the [Si] of the molten iron. The method can avoid the blast furnace explosion in the process of stopping and lowering the material surface, prolong the coal gas recovery time, shorten the time of stopping and lowering the material surface, save the coke consumption and reduce the cost.

The utility model relates to a water depth measuring device with an underwater protection function, and relates to the technical field of underwater measurement. The water depth measuring device with the underwater protection function comprises a main body, and the main body is used for being placed on a measuring platform above a riverbed; the first connecting piece is connected with the main body, and the lower end of the first connecting piece extends into water and is connected with a first probe; the first connecting piece is connected with the main body, the second connecting piece is connected with the main body, the second connecting piece and the first connecting piece are spaced, the lower end of the second connecting piece extends into water and is connected with a flow disturbing piece, the flow disturbing piece is located on the incoming flow side of the first probe, and the flow disturbing piece is used for disturbing water flow flowing to the first probe. The impact of water flow on the first connecting piece and the first probe is reduced, and the service life of the first probe is prolonged.

The utility model relates to the technical field of refrigeration equipment, in particular to an air conditioner refrigeration throttling device. The pipe body is composed of a liquid inlet section, a throttling section and a liquid outlet section, the inlet of the liquid inlet section is provided with a filter screen, the middle of the liquid inlet section is provided with a throttling core for controlling flow, the throttling section comprises a throttling piece for accurately adjusting the flow, the inner diameter of the liquid outlet section is gradually increased, the flow velocity of fluid can be reduced, and pressure loss can be reduced; the tail end separating plate is provided with separating holes and liquid discharging grooves for further separating gas and liquid, buffering cavities are formed between the spiral blades and the separating plates, and connector threads are formed in the two ends of the pipe body. According to the device, through the gradually-expanding design of the inner diameter of the liquid outlet section and the synergistic effect of the flow guide blades, the spiral blades and the separation plates in the liquid outlet section, the effects of reducing the flow speed of a refrigerant and enhancing gas-liquid separation are achieved, and the overall efficiency and stability of a refrigerating system and the heat exchange efficiency of an evaporator are improved; the stable and efficient operation of the equipment is ensured; and the service life is prolonged.

The invention discloses a hydrogen storage tank body and a hydrogen storage device. The invention discloses the hydrogen storage tank body and the hydrogen storage device. The hydrogen storage tank body comprises a hydrogen inlet, a heat exchange medium inlet, a heat exchange medium outlet and a central heat exchange structure, the central heat exchange structure comprises a double-spiral pipe and a straight pipe, the double-spiral pipe relieves the phenomenon that local heat concentration exists on the edge of the structure, and the straight pipe is additionally arranged in the center of the spiral pipe, so that the heat dissipation performance of the central part is improved. The hydrogen storage device comprises a hydrogen storage device body, a plate heat exchanger, a water pump, a hydrogen pipeline system and a circulating water pipeline system, the hydrogen storage device body is mainly composed of twelve hydrogen storage tank bodies, a water inlet, a water outlet, an outer frame and inclined supporting partition plates, and the inclined supporting partition plates can prolong the residence time of water flow in the device. And blocking of water flow in the device is reduced, so that the reduction degree of the flow speed is reduced.