15results about How to "Guaranteed flow rate" patented technology

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 belongs to the technical field of flame guns, and particularly relates to a flame gun head which comprises a gun body and a preheating piece, one end of the gun body is provided with a connecting portion used for being connected with an air source, and the other end of the gun body is provided with a gun barrel. The preheating part is connected to the side, close to the gun barrel, of the gun body and comprises a flow guide pipe, and the flow guide pipe is used for enabling fuel fluid entering the gun body to surround the inner wall of the gun head by a circle and then enter the gun barrel; according to the design, fuel fluid is guided into the gun barrel after being subjected to heat transfer at the gun head to eliminate tiny liquid beads, potential safety hazards caused by the fact that the tiny liquid beads enter the gun barrel are effectively avoided, the flow guide pipe surrounds the inner wall of the gun head by a circle, the heat transfer effect on the fuel fluid can be improved, and it is guaranteed that the tiny liquid beads possibly existing in airflow are vaporized; and the use safety and reliability of the flame gun are improved.

A winding pipe type heat exchanger for reforming equipment comprises a vertically-arranged shell pass barrel, a gas phase inlet connecting pipe and a liquid phase inlet connecting pipe are arranged on the side wall of the lower portion of the shell pass barrel, and a lower pipe plate is arranged at the bottom of the shell pass barrel; the heat exchange tubes are vertically arranged in the shell pass barrel and spirally wound into a multi-layer spiral tube from inside to outside, and the lower end of each heat exchange tube is supported on the lower tube plate; the guide cylinder is vertically arranged in the lower space of the shell pass cylinder and sleeves the periphery of the outermost layer of spiral pipe, an annular cavity with the gas phase inlet connecting pipe is formed between the cylinder wall of the guide cylinder and the corresponding side wall of the shell pass cylinder, and the annular cavity is communicated with the inner space of the guide cylinder through a communication port arranged in the circumferential direction; the annular spraying pipe is arranged in the inner space of the guide cylinder in the circumferential direction, the spraying pipe is communicated with the liquid phase inlet connecting pipe, a plurality of spraying holes are formed in the spraying pipe in the circumferential direction at intervals, and the spraying holes are located above the communicating port.

The application relates to the technical field of mechanical manufacturing, in particular to a transfer manipulator of an injection molding machine, which comprises a mechanical arm, a vacuum control assembly is arranged on the mechanical arm, the vacuum control assembly is a shell structure provided with an air inlet, a vacuum pipe, a cavity and an exhaust pipe, a gas supply source is connected to the air inlet, a suction disc is arranged at the lower end of the vacuum pipe, and the suction disc is provided with a gas guide groove in the axial direction. The injection molding product surface is cleaned before the transfer manipulator of the injection molding machine transfers the injection molding product by utilizing the reversible air channel and the elastic element to cooperate with the gas inertia to make the gas generate a short recoil movement and impact the injection molding product surface, the injection molding product is transferred after the cleaning is completed, the surface cleanliness of the injection molding product is ensured, and the working stability of the transfer manipulator of the injection molding machine is improved.

This invention discloses a waste heat recovery device for flue gas from a thermal oil aluminum melting furnace, relating to the field of baking furnace technology. The device includes a furnace, with a support rod fixedly connected to the outer wall of the furnace and an exhaust pipe fixedly connected to the top of the furnace. A furnace opening and closing door is provided on the front of the exhaust pipe, and a waste heat recovery mechanism is installed inside the exhaust pipe. By setting up the waste heat recovery mechanism, while heat is exchanged through inclined heat-conducting plates, the rotation of the inclined heat-conducting plates dynamically disturbs and redistributes the uneven heat distribution of the high-temperature flue gas within the exhaust pipe, continuously reconstructing the flue gas flow field. Through the continuous rotation of each inclined heat-conducting plate within the exhaust pipe, it is ensured that each inclined heat-conducting plate uniformly contacts and exchanges heat with the flue gas at all locations within the exhaust pipe, significantly improving the overall heat transfer efficiency and waste heat recovery rate.

This invention belongs to the field of water circulation technology, and particularly relates to a non-discharge cold-point water-for-injection circulation system, comprising: a water storage tank for storing water for injection; and a circulating water pump installed on one side of the water storage tank. The circulating water pump, after being cooled by a heat exchange structure, is returned to the main pipeline via a branch pipe and then flows back into the water storage tank through a connecting pipe, avoiding direct discharge of low-temperature water for injection. This solves the problem of water loss in traditional discharge schemes, reduces the production costs of pharmaceutical companies, and forms a closed loop between the main pipeline and the water storage tank. The branch pipe is connected to the main pipeline through a heat exchange structure, and all return water from the usage points returns to the main pipeline. At the same time, the circulating water pump drives the water flow circulation, ensuring that the flow velocity in the main pipeline meets the subsequent turbulence requirements, inhibiting microbial growth. Several cooling points are set up to support the simultaneous use of single or multiple cooling points, adapting to the room temperature or low temperature water-for-injection needs of different scenarios such as bottle washing machines, ultrafiltration, and disinfectant preparation, thus improving the system's versatility.

The application discloses a water tunnel experimental device, system and method based on an ejecting principle, and belongs to the technical research field of hydrodynamic experiments; the experimental device comprises a front return flow section, an experimental section, a static section, a rear return flow section, a bottom fairing section and a power system; the front return flow section, the experimental section, the rear return flow section and the bottom fairing section are sequentially connected through flanges to form a closed water tunnel; the static section is a pipeline with open ends and is connected in parallel with the experimental section, one end of the static section is connected to an outlet end of the front return flow section, and the other end of the static section is connected to an inlet end of the rear return flow section; the power system is used for moving fluid; when high-speed fluid flowing from the front return flow section enters the experimental section, the high-speed fluid is in contact with fluid in the static section to generate momentum exchange; the high-speed fluid drives low-speed fluid in the static section to move, so that a low Reynolds number flow space is formed in the experimental section.

The invention relates to the technical field of medical instruments, and discloses a flow limiting device of an infusion apparatus, which comprises a stroke rod, a thread is arranged at the position, close to the top, of the inner wall of the stroke rod, an adjusting bolt is mounted in a thread fit manner, and an extrusion spring is arranged at the top of the adjusting bolt. The bottom of the extrusion spring is in contact with the top of the extrusion cover, and the adjusting bolt rotates to be screwed under the action of thread fit, so that the extrusion spring is extruded to improve the pressure applied by the extrusion spring to the top of the extrusion cover. The adjusting bolt can be disassembled by reversely rotating the adjusting bolt, the extrusion cover can be lifted up and disassembled after the adjusting bolt is separated, and at the moment, the side hole can be removed from the outer side of the heating device, so that the separation of the side hole and the device is realized, and a flow limiting device in a traditional infusion device cannot be disassembled; and after being used, the device can only be discarded along with the side hole, so that waste is caused, the problem is well avoided, and the practicability of the device is improved.

This invention relates to the field of exhaust gas cooling technology and discloses a high-reliability exhaust gas recirculation cooler, comprising a shell and inlet and outlet main plates installed on both sides of the shell. A heat dissipation tube assembly is provided inside the shell, comprising several evenly spaced, dotted heat dissipation tubes. The inlet and outlet main plates have square holes equal in number to the dotted heat dissipation tubes. The top and bottom ends of the heat dissipation tube assembly do not have dotted heat dissipation tubes. A tube bundle fixing member is provided on the shell near the outer outlet to constrain the dotted heat dissipation tubes. The cross-section of the tube bundle fixing member is the same as the outer contour of the heat dissipation tube assembly, and the long and short sides of the outermost ring of dotted heat dissipation tubes are in close contact with the inner edge of the tube bundle fixing member. This invention provides a high-reliability exhaust gas recirculation cooler with high thermal shock resistance life, improved vibration resistance while ensuring heat exchange capacity and boiling resistance, resulting in high reliability.

The utility model provides a continuous production device for EDTA (Ethylene Diamine Tetraacetic Acid) condensation reaction, which belongs to the technical field of chemical equipment and comprises a reaction deamination tower, a first heat exchanger, a second heat exchanger and a blender, a tubular heat exchanger is arranged at the top of the reaction deamination tower, and an ammonia discharge pipe is arranged at the top of the tubular heat exchanger; the materials subjected to heat exchange by the second heat exchanger and the materials subjected to heat exchange by the first heat exchanger are mixed in the blender; and the mixer is communicated with the reaction deamination tower through a mixture feeding pipe. An extraction pipe is arranged at the bottom of the reaction deamination tower, part of high-temperature reaction liquid extracted from the bottom of the reaction deamination tower by a ramming circulating pump on the extraction pipe enters the first heat exchanger and the second heat exchanger for heat exchange, and part of the high-temperature reaction liquid enters the blender through a circulating communicating pipe for material mixing. By utilizing the device, the ammonia discharge effect and the ammonia discharge timeliness can be improved, the product quality after the EDTA condensation reaction can be improved, the land can be saved, and the production cost, the energy consumption and the labor intensity can be reduced.

The utility model relates to the technical field of drainage ditches, and discloses a resin drainage ditch with a filtering function, which comprises a U-shaped ditch body and an auxiliary ditch body, the outer walls of the front ends of the U-shaped ditch body and the auxiliary ditch body are respectively provided with a positioning groove I, and the rear ends of the outer walls of the U-shaped ditch body and the auxiliary ditch body are respectively and fixedly connected with a positioning block I; cover plates are arranged on the upper surfaces of the U-shaped ditch body and the auxiliary ditch body, and a plurality of circulation holes are evenly formed in the two sides of the upper surface of each cover plate. According to the resin drainage ditch, when the resin drainage ditch is used, the first filter screen is made of stainless steel and firstly makes contact with circulating rainwater, large impurities can be effectively prevented from flowing into the surface of the circulation plate, the circulation plate is an inclined plate, and therefore the rainwater can flow in an accelerated mode under the gravity effect and keep a certain flow speed; impurities are prevented from being deposited and accumulated due to slow water flow, and silt carried in the rainwater can be filtered through the second filter screen which is a polyester fiber filter screen.

The utility model relates to portable oxygen generator field especially, it is an oxygen inhalation nozzle that realizes fast oxygen inhalation, the oxygen inhalation nozzle is integrated in hand -held oxygen generator, and the oxygen inhalation nozzle is used for contacting mouth or nose to guide oxygen, including cover body, be equipped with the oxygen inhalation portion that extends to the outside side on the cover body, and the oxygen inhalation portion sets up the oxygen outlet, including branch air pipe, the branch air pipe includes the main air pipe for connecting hand -held oxygen generator and respectively extends to the branch pipe of oxygen outlet, and the main air pipe inner diameter of main air pipe is greater than the branch pipe inner diameter of branch pipe, the utility model is especially applicable to in hand -held oxygen generator.

The application relates to an air inflation supercharging device, and relates to the technical field of air inflation devices. The air inflation supercharging device comprises a handle, a tubular structure with a bottom end closed, an air inlet hole arranged at the bottom end of the outer wall of the handle in a circumferential direction, a motor arranged in the handle and fixedly connected with the handle, a fan blade arranged in the handle and coaxially fixedly connected with the output shaft of the motor, used for discharging the gas entering through the air inlet hole from the top end of the handle, an outer cylinder fixedly connected with the top end of the handle and communicated with the handle, an inner cylinder inserted into the outer cylinder, the end of the inner cylinder fixedly connected with the outer cylinder and in a closed state, and the handle connected with the end of the outer cylinder, and an air inflation pipe fixedly connected with the start end of the outer cylinder and communicated with the outer cylinder. The application has the effects of high air inflation efficiency and good use stability.

The application discloses a heat storage device for geothermal multi-stage use, and relates to the technical field of geothermal heat storage. The heat storage device comprises a cold tank and a conveying pipeline. The surface of the cold tank is fixed with a connecting seat. The surface of the conveying pipeline is provided with a moving sleeve. The inner wall of the moving sleeve is provided with rotating grooves. The surface of the conveying pipeline is fixed with guide blocks. The inner wall of the moving sleeve is provided with multiple groups of sealing plates. The surface of the sealing plates is provided with expansion cleaning assemblies. The side end of the connecting seat is installed with a rotating seat. The inner wall of the rotating seat is connected with a clockwork. The end of the rotating seat is provided with multiple groups of limiting grooves. The symmetrical limiting grooves in the side wall cavity of the connecting seat are symmetrically and slidingly installed with two limiting blocks. The other end of the rotating seat is installed with multiple groups of sealing blocks. The side end of the rotating seat is fixed with two groups of electric telescopic rods. The extending end of the electric telescopic rods is fixed with heat absorbing blocks. The connecting seat, the moving sleeve, the sealing plates and the expansion cleaning assemblies guarantee the flow rate of the conveying pipeline and realize the self-cleaning of the connecting port between the conveying pipeline and the cold tank.

A liquid inlet pipe is arranged on one side of the upper portion of a shell, a first copper pipe and a second copper pipe are both arranged on the upper portion in the shell, one end of the first copper pipe and one end of the second copper pipe located on the top are connected with the liquid inlet pipe, and a third copper pipe is arranged on the lower portion in the shell. All the first copper pipes are sequentially connected through first elbows, all the second copper pipes are sequentially connected through second elbows, all the third copper pipes are sequentially connected through third elbows, and the first copper pipe and the second copper pipe located at the bottom are connected with a three-way copper pipe connector. The three-way copper pipe joint is reasonable in structure, on one hand, the pressure when the three-way copper pipe joint leaves a condenser is increased, so that the flow speed of post circulation is guaranteed, the heat exchange efficiency is improved, on the other hand, the first copper pipe and the second copper pipe are arranged in a staggered mode, the heat exchange area of the cross section is increased, and the heat exchange effect is improved.