77results about How to "Liquid level stability" patented technology

The invention belongs to the technical field of water quality detection, and discloses a real-time monitoring system and method based on microsampling. The real-time monitoring system based on micro-sampling comprises a water storage tank, a sampling device, a detection and recognition module and a driving part, the water storage tank is provided with a water inlet, a water outlet and a sampling port, a first water baffle and a second water baffle are arranged in the water storage tank and divide the water storage tank into three cavities which are communicated with one another, and the driving part is connected with the detection and recognition module. The water inlet, the water outlet and the sampling port are respectively communicated with the three cavities; the sampling device comprises a structural part and a sampling rod, the sampling rod is detachably connected to the structural part, and when the structural part drives the sampling rod to be inserted into the water storage tank from the sampling opening for sampling, the structural part can seal the sampling opening; the detection and identification module can detect the water quality of the sampled water; the driving part is used for driving the sampling device to switch sampling and sample dropping between the water storage tank and the detection and identification module. The water quality detection efficiency and precision are improved.

The utility model relates to a coating buffer tank which comprises a tank body and a feed liquid buffer structure, and the tank body is provided with a feed port and a feed liquid stirring cavity arranged in the tank body; the feed liquid temporary storage structure is arranged in the tank body, a feed liquid temporary storage space and at least one communicating hole used for keeping static pressure balance in the cavity are formed in the feed liquid temporary storage structure, the feed liquid temporary storage space is communicated with the feed inlet, and the at least one communicating hole is communicated with the feed liquid temporary storage space and the feed liquid stirring cavity; and the feed liquid which enters the feed liquid buffer space from the feed port is supplemented into the feed liquid stirring cavity. During feeding, feed liquid enters the feed liquid buffer space from the feed inlet, the feed liquid in the feed liquid buffer space is supplemented to the feed liquid stirring cavity through the communication hole at the time of stopping feeding, and the liquid level in the feed liquid buffer space is reduced slowly, so that the stability of the liquid level and the stability of static pressure in the feed liquid stirring cavity are ensured; meanwhile, the opening and closing frequency of the feeding electromagnetic valve and the feeding screw pump is reduced, and the stability of the feeding system is guaranteed.

The invention provides a circuit board electroplating device which comprises a conveying assembly, and the conveying assembly comprises a rack, an electroplating bath, a connecting column, a mounting cylinder, a synchronous electric cylinder, a connecting base, a mounting frame, a sliding block, a driving motor, a driving screw, a threaded hole, a mounting plate and a controller. According to the invention, the slot on the mounting plate is matched with the slidable adjusting rod, and the position of the adjusting rod can be accurately locked through the limiting screw hole and the limiting screw, so that the cathode clamp can be flexibly adjusted according to the size of the circuit board, and the cathode clamp clamping the circuit board is ensured to be completely immersed into an electroplating solution in an electroplating bath; meanwhile, the adjusting rod and the connecting block are quickly connected and separated through structures such as a pin rod and a spring, and a proper cathode clamp is conveniently replaced according to the specification of the circuit board, so that the adaptability is improved, the synchronous electric cylinder and the driving motor are uniformly regulated and controlled through the controller, accurate movement of the circuit board in the vertical direction and the horizontal direction is achieved, and the production efficiency is improved. All links from installation to electroplating are completed, manual intervention is reduced, and efficiency and accuracy are improved.

The utility model discloses a rotary compressor and refrigeration equipment, relates to compressor technical field, rotary compressor includes shell and set up motor subassembly, crankshaft, support subassembly and oil-gas separation piece in the shell inner cavity, motor subassembly includes stator and rotor, stator and shell connection, rotor and crankshaft fixed connection, crankshaft protrudes upwards the rotor, and the oil-gas separation piece is located in the shell inner cavity. The supporting assembly is located above the motor assembly and comprises a support and a motor bearing, the support is fixedly connected with the shell, the motor bearing is installed on the support, the oil-gas separation part is fixedly installed on the rotor, and stirring plates of the oil-gas separation part are arranged around the crankshaft and extend towards the support. According to the rotary compressor, the oil-gas separation effect can be enhanced, the oil spitting amount is reduced, and the liquid level of the oil pool is stable.

The utility model discloses a heat source water segmented cooling type two-stage two-class absorption heat pump, and belongs to the technical field of heat exchange equipment. Comprising a first-stage condenser, a second-stage condenser, a first-stage regenerator, a second-stage regenerator, a low-pressure evaporator, a low-pressure absorber, a high-pressure evaporator, a high-pressure absorber, a low-temperature heat exchanger, a high-temperature heat exchanger, a solution pump, a first-stage refrigerant feeding pump, a second-stage refrigerant feeding pump, a refrigerant circulating pump and a flash tank. The structure and process of heat source water segmented cooling and two-stage absorption and evaporation are adopted, refrigerant water circulation is conducted in a low-pressure absorber pipe, solution circulation is conducted outside the low-pressure absorber pipe, no heat transfer pipe is arranged in a high-pressure evaporator, the high-pressure evaporator conducts heat exchange in a refrigerant water flash evaporation mode, and refrigerant water flows through gravity and density difference; power devices such as a circulating pump do not need to be configured, the unit cost is reduced, heat source water cascade efficient utilization is achieved, the output grade and output of steam are improved, the heat exchange efficiency of the unit is improved, energy waste is avoided, and meanwhile stable operation of the unit can be guaranteed.

The invention belongs to the technical field of evaporation equipment, and particularly relates to a falling film evaporator which is characterized in that the lower end of a shell pass cylinder A is connected with a lower tube plate, the upper end of a shell pass cylinder B is connected with an upper tube plate, and the shell pass cylinder A is connected with the shell pass cylinder B through an expansion joint; the two ends of the heat exchange tube are connected with the upper tube plate and the lower tube plate respectively, the heat exchange tube penetrates through the baffle plate, and the baffle plate is fixed through a pull rod, a pipe spacer and a nut. The shell pass cylinder A is provided with a condensate water outlet, and the shell pass cylinder B is provided with a steam inlet; the lower tube box is connected with the lower tube plate through a lower tube box flange assembly; a liquid outlet is formed in the bottom of the lower tube box; the upper tube box A is connected with the upper tube plate, the upper tube box A is provided with a liquid inlet, the upper tube box B is provided with a gas outlet, the upper tube box A and the upper tube box B are connected through a flange assembly, an outer cover and an inner ring weir are arranged in the upper tube box, and a film distributor is arranged at the upper end of the heat exchange tube. The device is simple in structure, uniform in liquid distribution, high in evaporation efficiency, convenient to disassemble, clean and replace, and low in maintenance cost and technical difficulty.

The invention relates to the technical field of water-cooling copper mold pouring, and particularly discloses a liquid level stable bottom pouring type water-cooling copper mold aluminum alloy cast ingot preparation device and method.The liquid level stable bottom pouring type water-cooling copper mold aluminum alloy cast ingot preparation device comprises two water-cooling copper molds and a pouring cup, handles are fixedly connected to the two sides of the pouring cup, and a pouring opening and a forming cavity are formed in one side of each water-cooling copper mold; the two sprue gates and the forming cavity are correspondingly arranged; according to the cooling device disclosed by the invention, cooling water in the cooling cavity can be stirred up and down under the action of forming a plurality of flowing holes in the arc-shaped net plate, so that the cooling water sufficiently flows, the water flow speed can be increased by stirring, and the residence time of the cooling water and the inner wall surface of the cooling cavity is shortened; therefore, the cooling efficiency of the cooling water on the mold liquid in the sprue gate and the forming cavity is improved, the mold liquid can be rapidly cooled and formed under the action of the cooling water, the defects of oxide inclusion, air holes and the like in a cast ingot are avoided, the liquid level of the mold liquid is more stable during pouring, and the metallurgical quality of the alloy cast ingot is improved.

The invention discloses a method for adding rare earth into a low-alloy high-strength steel crystallizer, which belongs to the technical field of application of rare earth in steel, and is mainly characterized in that rare earth is added in a manner of symmetrically feeding rare earth wires on two sides of a slab casting machine single-flow crystallizer by adopting a double-pipe wire feeder at a position which is 1 / 2 of the thickness and is 100mm away from a water gap in the width direction; the rare earth wires are 65% Ce-35% La mixed rare earth wires with the diameter being 2.5 mm and wrapped with iron sheets. According to the method for adding the rare earth into the low-alloy high-strength steel crystallizer, the liquid level of the crystallizer is stable in the whole wire feeding process, the storage amount of the rare earth in the steel is increased, water gap flocculation is avoided, the rare earth is evenly distributed on the whole section of a casting blank, the internal quality of the casting blank is improved, and reference can be provided for development of rare earth steel with the high storage amount of the rare earth.

The utility model relates to the technical field of coal dressing, in particular to a magnetic separator tailing overflow self-circulation water replenishing device which comprises a magnetic separator, a feeding port of the magnetic separator is connected with a dilute medium barrel through a feeding pipe, a water pump is arranged on the feeding pipe, a water inlet of the dilute medium barrel is connected with a water replenishing pipeline, and an overflow pipe of the magnetic separator is located above an opening of the dilute medium barrel. An overflow pipe of the magnetic separator is connected with one end of a backflow pipeline, the other end of the backflow pipeline is located above the dilute medium barrel and close to an opening of the dilute medium barrel, and water overflowing from the overflow pipe of the magnetic separator flows into the dilute medium barrel through the backflow pipeline under the action of gravity. According to the utility model, water overflowing from the overflow pipeline of the magnetic separator can automatically flow to the dilute medium barrel to be used as replenished water, so that the circulation of water resources in the coal dressing system is realized, the use of external water is reduced, additional equipment is not needed, and unnecessary power consumption is effectively reduced, energy is saved and consumption is reduced while the production process is stabilized.

The utility model provides a slag rake cooling water temperature and liquid level self-adjusting device, which relates to the technical field of steelmaking converters and comprises a cold water inlet pipe leading to the inside of a cooling water tank and a hot water discharge pipe arranged below the side wall of the cooling water tank and communicated with the inside of the cooling water tank, a water inlet valve is arranged on the cold water inlet pipe, and a water discharge valve is arranged on the hot water discharge pipe. The first support is provided with a liquid level sensor, the second support is provided with a thermodetector, the outer wall of the cooling water pool is provided with a control box, and the water inlet valve, the water drainage valve, the liquid level sensor and the thermodetector are all electrically connected with the control box. The cold water inlet pipe is provided with the water inlet valve, the hot water discharge pipe is provided with the water discharge valve, the liquid level sensor is arranged to measure the liquid level, and the thermometer is arranged to measure the temperature of pool water, so that the water inlet valve and the water discharge valve can be automatically controlled by the control box to act, and automatic cold water filling and hot water discharge are realized; and the water level and the water temperature in the cooling water tank are kept stable.

This utility model discloses a liquid baffle with foam suppression function for electrolytic cells, including a liquid baffle body. Vertical plates are fixedly connected to the top four sides of the liquid baffle body. A drive motor is bolted to the outer side of each vertical plate. A threaded rod is fixedly connected to the output end of the drive motor, and a movable plate is threadedly connected to the surface of the threaded rod. This utility model utilizes the synergistic action of a stirring motor, a rotating disc, a crushing rod, a vibrating motor, a vibrating rod, crushing blocks, and spikes to treat foam from multiple aspects, including stirring, crushing, and vibrating. Compared to traditional liquid baffles, it improves foam suppression efficiency, effectively maintains stable liquid levels in the electrolytic cell, and reduces the adverse effects of foam overflow. The lifting structure composed of the drive motor, threaded rod, and movable plate can flexibly adjust the position of the crushing components according to the height and distribution of foam in the electrolytic cell, ensuring good foam suppression effects under different operating conditions.

This invention discloses a low-level protection device for a turbine lubricating oil tank, comprising a vent pipe, an oil suction pipe, and an oil outlet pipe. The vent pipe and the oil suction pipe are connected by an intermediate pipe. The upper opening of the vent pipe is higher than the maximum shutdown level, and the lower opening of the oil suction pipe is lower than the low-low level. The oil outlet pipe connects to the intermediate pipe and the oil suction pipe at the junction via a horizontal pipe with a perforated plate, forming a low-suction oil path. The oil outlet pipe extends horizontally out of the tank side plate. A horizontal pipe is connected at the junction of the vent pipe and the intermediate pipe, and the other end of the horizontal pipe connects to the oil outlet pipe via a downcomer, forming a high-suction oil path. The horizontal pipe is parallel to the horizontal pipe with a perforated plate. The highest point of the inner wall of the horizontal pipe is flush with the low level. The lowest point of the perforation in the horizontal pipe with a perforated plate is flush with the low-low level. This invention has a simple structure and effectively avoids rapid leakage of lubricating oil from the oil suction interface of the lubricating oil tank side plate, thus protecting the lubricating oil tank from low levels.

The utility model discloses a kind of slurry flow control system for shield machine and shield machine with it, comprising: the slurry cabin of being laid in the shield body of shield machine, and the transition cabin, grouting system and slurry discharge system of being laid outside shield machine, and air pressure control system. Transition cabin is equipped with liquid level detector for detecting the liquid level in it and first pressure detector for detecting the pressure in it, and transition cabin is connected with air pressure control system to adjust the air pressure in it, and transition cabin is also connected with slurry cabin, to control slurry cabin pressure by slurry pressure and air pressure in transition cabin, and then make slurry cabin pressure match face water and soil pressure. Transition cabin and slurry cabin are also connected with grouting system to inject slurry respectively, and slurry cabin is also connected with slurry discharge system to discharge slurry outward. The new system can ensure the stability of liquid level and air pressure in transition cabin, and then control the stability of slurry cabin pressure, so that slurry cabin pressure matches face water and soil pressure.

The invention belongs to the field of chemical synthesis, and discloses a gas-liquid mixing reactor, a production system and application of the gas-liquid mixing reactor in acetic acid synthesis. The gas-liquid mixing reactor comprises a shell, a gas feeding pipe, a liquid feeding pipe, a gas distributor, a liquid distributor, a guide plate, a gas-liquid separator, a gas outlet and a liquid outlet. The production system provided by the invention comprises the gas-liquid mixing reactor provided by the invention. The gas-liquid mixing reactor and the production system can be used for acetic acid synthesis. The gas-liquid mixing reactor is free of mechanical stirring, good in gas-liquid mixing effect, beneficial to improvement of reaction efficiency and conversion rate and suitable for acetic acid synthesis.

A composite on-site flow meter calibration method is disclosed. This method allows for measurement of individual instruments using standard instruments, and can switch between standard instruments and volumetric measuring devices for simultaneous measurement, as well as between standard instruments and gravimetric measuring devices for simultaneous measurement. Therefore, it enables free switching between various measuring devices for comparison of measurement values, solving the problem of large measurement errors caused by single measurement methods and greatly improving the accuracy of instrument calibration. Furthermore, the instrument clamping device in this calibration method can simultaneously clamp multiple instruments in series for measurement, resulting in high efficiency and allowing for easy adjustment of the clamping quantity as needed, demonstrating strong adaptability. The gravimetric measuring device in this calibration method can accommodate the efficient alternation of two weighing devices while ensuring a relatively stable liquid level in the oil tank, which is beneficial for flow stability during the weighing process.

The utility model discloses a centrifugal vacuum degasser liquid level automatic regulating device, including valve body shell, float ball, valve core, outer exhaust joint, inner suction joint and outer suction joint. The valve core is arranged in the valve body shell, is equipped with a plurality of communicating holes on it, wherein the hole that communicates with the outer exhaust joint is long hole to guarantee that the outer exhaust joint always keeps communicating, the hole distance design of the hole that communicates with the inner suction joint and the outer suction joint is when the inner suction joint is completely connected, the outer suction joint is completely closed, and vice versa. The lower end of valve core is connected with float ball through connecting rod, and float ball drives valve core to move up and down under the buoyancy effect of float ball, thereby realizes the alternate switching of inner suction joint and outer suction joint. Through the design, the utility model can automatically adjust the air extraction amount according to the liquid level change, avoids vacuum pump reverse suction or evacuation, realizes the automatic stable control of centrifugal vacuum degasser liquid level, and has the advantages of simple structure, reliable operation, high degassing efficiency and the like.

An efficient recovery type second-class absorption heat pump belongs to the technical field of heat exchange equipment and comprises a condenser, a regenerator, a low-pressure evaporator, a low-pressure absorber, a high-pressure evaporator, a high-pressure absorber, a low-temperature heat exchanger, a high-temperature heat exchanger, a refrigerant heating heat exchanger, a solution pump, a refrigerant feeding pump and a flash tank. Refrigerant water circulation is achieved in a low-pressure absorber pipe, solution circulation is achieved outside the low-pressure absorber pipe, a heat transfer pipe is not arranged in a high-pressure evaporator, the high-pressure evaporator conducts heat exchange in a refrigerant water flash evaporation mode, a solution heat recovery heat exchanger is arranged on a solution circulation pipeline, the solution flash evaporation amount is reduced, and a refrigerant heating heat exchanger is arranged on a refrigerant water pipeline. The temperature of refrigerant water sent to the low-pressure evaporator and the high-pressure evaporator is increased, the internal heat exchange loss is reduced, the heat exchange efficiency of the unit is improved, energy waste is avoided, meanwhile, the liquid level in the flash tank is kept stable through effective control, and stable operation of the unit is guaranteed.

The invention provides an automatic liquid level control method and system for an after-condenser of a liquefied natural gas receiving station. The automatic liquid level control method for the after-condenser of the liquefied natural gas receiving station comprises the steps that S1, the bottom pressure of the after-condenser is kept stable, and the bottom pressure of the after-condenser is obtained; s2, according to the bottom pressure of the after-condenser, the set operation temperature of the after-condenser is calculated; s3, obtaining a plurality of parameter values and BOG mass flow which influence the liquid-gas ratio R value for controlling the recondenser to operate at the set operation temperature; s4, according to the set operation temperature of the recondenser and the multiple parameter values, the liquid-gas ratio R value required by the set operation temperature of the recondenser is calculated; s5, according to the liquid-gas ratio R value required by the re-condenser at the set operating temperature and the BOG mass flow, the LNG mass flow required by feeding of the re-condenser is calculated; and S6, feeding according to the LNG mass flow rate required by feeding of the re-condenser.

The utility model relates to the technical field of petrochemical engineering, in particular to a water supply surge tank water replenishing device which comprises a water surge tank and an automatic water replenishing device, the automatic water replenishing device comprises a water storage tank, a liquid level meter, a balance pipe and a water replenishing pipe, the liquid level meter is fixedly installed on the water storage tank, one end of the balance pipe is fixedly installed on the water storage tank, and the other end of the balance pipe is fixedly installed on the water replenishing pipe. The water supplementing pipe is fixedly installed on a bottom opening of the water storage tank. After the automatic water replenishing device is additionally arranged, the liquid level in the water pressure stabilizing tank is kept stable, the liquid level in the pressure stabilizing tank can be kept stable all the time, the pressure and the flow of sample gas are more stable after the sample gas is treated by the water pressure stabilizing unit, more accurate and stable analysis data are provided for production, and the manual maintenance amount is reduced.

The utility model discloses an acid inlet balance barrel suitable for a high-speed continuous spinning machine, which belongs to the technical field of viscose filament continuous spinning equipment, and comprises an acid bath pipe provided with a baffle plate, an inner barrel and an outer barrel, the outer barrel is provided with an overflow discharge port, the acid bath pipe is provided with an inlet end, an outlet end and a connector end, the connector end is fixedly connected with the outer barrel relatively, and the inner barrel is provided with an overflow discharge port. The inner cylinder arranged on the inner side of the outer cylinder is movably connected with the connector end, the relative height of the inner cylinder and the acid bath pipe is adjustable, an exhaust pipe is arranged in the acid bath pipe, the bottom of the exhaust pipe is arranged at the baffle plate and the outlet end, and an outlet of the exhaust pipe extends out of the inner cylinder. And bubbles generated in the flowing process of the acid bath are still discharged from the acid bath and then enter each position of rear-end production, so that the spinning forming process is influenced.

The utility model discloses a primer box and a slurry circulation feeding system, the primer box comprises a material box body, the bottom of the material box body is provided with a feeding port, the feeding port is provided with a flow guide block, the bottom of the material box body is provided with a backflow step, the backflow step is provided with a material return port, and the material return port is provided with a material outlet. And the height of the material returning opening is higher than that of the feeding opening. The slurry circulating feeding system comprises the primer box, a slurry tank and a circulating assembly, and a feeding channel and a backflow channel are formed among the slurry tank, the circulating assembly and the primer box, so that the slurry is recycled. The device has the advantages that the precipitation degree of the slurry in the primer box is effectively reduced, the uniform solid content of the slurry is ensured, the liquid level height in the primer box is stably kept, the slurry is recycled, and the material and labor cost is effectively reduced.

The utility model discloses an activation stirrer system, which relates to the technical field of stirrers and comprises a front stirrer and a vertical activation stirrer, and a slurry detecting and adjusting part used for monitoring and adjusting concentration and flow is arranged between the front stirrer and the vertical activation stirrer. The vertical activation stirrer comprises a stirring barrel and a stirring piece arranged in the stirring barrel, a driving mechanism is arranged at the top of the stirring barrel, the stirring piece comprises a stirring shaft and a stirring rod arranged on the outer side of the stirring shaft, and the stirring shaft is detachably connected with the driving mechanism; the side wall of the top and the side wall of the bottom of the stirring barrel are each provided with a material opening, and the front stirring machine is connected with one material opening through a slurry detecting and adjusting part. According to the activation stirrer system disclosed by the utility model, secondary stirring can be carried out after dry powder and fine aggregate slurry are stirred, so that the homogenization degree of the dry powder is improved.

The present invention relates to the field of separation reflux extraction devices, and in particular to reflux extraction devices and extraction tubes. The reflux extraction device comprises an extraction bottle, an extraction tube located above the extraction bottle and sealed with the extraction bottle, a condenser located above the extraction tube and sealed with the extraction tube, a partition layer inside the extraction tube body, a sand core built into the lower part of the extraction tube above the partition and capable of limiting flow, and a steam pipe and an extraction siphon on the side of the extraction tube. Compared with the existing reflux extraction device, the present invention solves the problem of low extraction efficiency and long extraction time caused by the fact that the solid sample is not always in a state of being immersed and extracted during extraction.

This utility model discloses an automatic coating machine for biodegradable adhesives used in environmentally friendly cardboard boxes, relating to the field of environmentally friendly cardboard box production technology. It includes an adhesive shell and a coating roller. The coating roller is disposed inside the upper side of the adhesive shell. A first rotating rod is fixedly sleeved on the middle of the coating roller, and both ends of the first rotating rod are rotatably connected to the inner wall of the corresponding adhesive shell. A first motor is fixedly disposed on one outer wall of the adhesive shell, and the output end of the first motor is fixedly connected to one end of the first rotating rod. A limiting roller is arranged parallel above the coating roller. Vertical plates are fixedly disposed on the upper surface of the adhesive shell on both sides of the limiting roller. An adjustment mechanism for moving the limiting roller is disposed inside the two vertical plates. A piston plate is slidably abutted inside the adhesive shell. This utility model can automatically lift the adhesive, maintaining a stable adhesive level and eliminating the need for frequent adhesive replenishment.

The present invention relates to a sway-suppressing circulating liquid storage tank for a vehicle hydrogen and oxygen generator, comprising a circulating liquid storage tank body, wherein a plurality of circulating liquid storage tank compartment partitions are arranged from left to right in the inner cavity of the circulating liquid storage tank body, wherein the plurality of circulating liquid storage tank compartment partitions divide the inner cavity of the circulating liquid storage tank body into a plurality of circulating liquid storage tank liquid storage chambers, wherein the lower section of the circulating liquid storage tank compartment partition is provided with a circulating liquid storage tank connecting port, wherein the inner wall of the circulating liquid storage chamber on the left or right side is provided with a plurality of first sway-suppressing partition wings of the circulating liquid storage tank from bottom to top, and the lower sections of the inner walls of the remaining circulating liquid storage chambers are all provided with a layer of second sway-suppressing partition wings of the circulating liquid storage tank, and a plurality of spaced circulating liquid storage tank mesh partitions are arranged above the second sway-suppressing partition wings of the circulating liquid storage tank. The sway-suppressing circulating liquid storage tank for a vehicle hydrogen and oxygen generator of the present invention has the advantages of preventing the swaying of the liquid in the tank, the fluctuation of the liquid level, and avoiding detection errors.

The invention discloses a feed liquid conveying device and a high-level discharge feed liquid treatment system, and relates to the technical field of nuclear industry. The feed liquid conveying device comprises a feed tank used for loading target feed liquid; the buffer tank is communicated with the feeding groove through a first lifting pipeline; the first air lifting device is arranged on the first lifting pipeline; the measurement supply tank is communicated with the buffer tank through a second lifting pipeline and is higher than the buffer tank; the second air lifting device is arranged on the second lifting pipeline; the on-line measuring device is used for measuring the target material liquid in the measuring supply tank, the first end of the on-line measuring device is communicated with the measuring supply tank, and the position of the first end is lower than the lowest point of the measuring supply tank, so that the height difference exists between the first end of the on-line measuring device and the outlet of the measuring supply tank. According to the embodiment of the invention, the device can improve or solve the problem of difficult inclined feeding of a feed liquid conveying device.

The utility model discloses a nitrogen sealing device for a hazardous chemical substance storage tank, and relates to the related technical field of hazardous chemical substance storage. The device comprises a tank body, a partition plate, a transparent window and an upper through pipe, the partition plate is fixed in the middle of the inner wall of the tank body, a communicating pipe is fixed in the center of the bottom of the partition plate, the transparent window is fixed on the periphery of the tank body below the partition plate in a penetrating mode, and a waste gas pipe and an air inlet pipe are fixedly communicated with the periphery of the tank body and symmetrical to the transparent window. The end, away from the tank body, of the gas inlet pipe fixedly communicates with a second pressure one-way valve, and the end, away from the tank body, of the waste gas pipe fixedly communicates with a first pressure one-way valve. Through the arrangement of the tank body, the partition plate, the transparent window and the upper through pipe, the problems that in the using process of the nitrogen sealing device, nitrogen needing to be discharged due to the air pressure change of the storage tank is directly conveyed into treatment equipment, leakage is likely to be caused, and when the steam pressure of hazardous chemical substances in the storage tank is too large in work, leakage is likely to happen are solved. And the hazardous chemical substances are easy to break through the sealing of the sealing liquid.

The utility model discloses a dephosphorization agent distribution device for a sewage treatment plant, which comprises a support frame and a distribution box body arranged on the support frame, the top surface of the distribution box body is opened, and a cover body is arranged on the top surface of the distribution box body; a steady flow plate and an overflow plate are arranged in the distribution box body, and the steady flow plate and the overflow plate are arranged in parallel at an interval so as to divide the distribution box body into a medicine inlet cavity, a steady flow cavity and a distribution cavity; a medicine inlet is formed in one side wall, corresponding to the medicine inlet cavity, of the distribution box body; a plurality of flow stabilizing holes are uniformly distributed in the lower part of the flow stabilizing plate; a plurality of partition plates are arranged in the distribution cavity, all the partition plates are arranged in parallel at intervals and are perpendicular to the overflow plate so as to divide the distribution cavity into a plurality of distribution grooves, meanwhile, a plurality of V-shaped overflow grooves are formed in the overflow plate, the number of the V-shaped overflow grooves corresponding to the distribution grooves is equal, and a medicine outlet is formed in the position, corresponding to the bottom of each distribution groove, of the bottom of the distribution box body. According to the dephosphorization device, the dephosphorization agent can be uniformly distributed, a good dephosphorization effect can be obtained under the condition that the dosage is small, and the equipment investment is reduced.

The invention discloses a distribution channel of a glass kiln, which comprises a kiln tank and an upper space structure, the kiln tank comprises an inlet area and a distribution area, the kiln tank also comprises a feed inlet and a plurality of discharge ports, the feed inlet is communicated with the inlet area, and the discharge ports are communicated with the distribution area; the liquid depth of the inlet area is larger than that of the distribution area, the inlet area and the distribution area are connected through a transition brick, and the transition brick comprises an inclined face. According to the invention, the depth of the molten glass in the furnace tank is set to be stepped, the depth of the molten glass at the inlet is large, and when the molten glass enters the distribution area from the inlet area, a glass bottle needs to climb, and impurities in the molten glass are left at a low position by utilizing the climbing process, so that the quality of the molten glass is improved; and the transition bricks adopt inclined transition, so that the erosion of molten glass to the bottom of the furnace tank can be slowed down.

This invention proposes a liquid supply device and a substrate cleaning method. The liquid supply device includes a nozzle, the liquid inlet of which can adopt a tangential liquid inlet to promote gas-liquid separation using centrifugal force; a plate-shaped separation section or a cylindrical separation section can be provided above the liquid outlet of the nozzle to suppress the discharge of air bubbles from the liquid outlet; the nozzle can have an upper and lower chamber structure, with exhaust ports in both chambers to achieve secondary exhaust; both chambers can also be equipped with liquid inlets to allow the processing liquid to be mixed twice, which reduces the amount and rate of gas generation compared to single mixing; it also includes a control unit and a liquid level sensor. The control unit adjusts the opening of the regulating valve on the exhaust line of the nozzle based on the liquid level detection signal obtained by the liquid level sensor, so as to maintain a stable liquid level in the nozzle, which helps to reduce the flow fluctuation when the nozzle supplies liquid to the substrate and improves the uniformity and reliability of liquid treatment.