17results about How to "Accurate flow adjustment" patented technology

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The invention discloses an automatic water-cooled power supply host system with independent partitions, and belongs to the technical field of power electronics, and the system is characterized in that the system comprises a host body, the host body is internally provided with a partition shelf, and the partition shelf is internally provided with a cavity. Each cavity is provided with an independent cooling coil, when a heating element corresponding to a certain cavity works to generate heat, a liquid pump sucks cooling liquid from an inlet pipe, the cooling liquid is accurately distributed through a flow dividing pipe and a flow control structure and then enters the cooling coil of the cavity, and by means of the independent cooling mode, when one cavity breaks down, the cooling liquid can be cooled by the liquid pump. The cooling liquid circulation is only influenced in the loop of the cavity, other cavities can still work normally, the reliability of the system is greatly improved, the overall downtime caused by local faults is shortened, and meanwhile, due to the design of the independent cavities, workers can quickly position fault points conveniently, and only the fault cavity is maintained and repaired.

This utility model discloses a tunnel fire-fighting foam liquid filling system, belonging to the field of fire-fighting equipment technology. It includes several fire boxes, a foam liquid filling vehicle, and a monitoring center. Both the fire boxes and the foam liquid filling vehicle are networked with the monitoring center to achieve data exchange. Specifically, each fire box contains a foam liquid storage tank and a first control device. The foam liquid storage tank is equipped with a first liquid level sensor, a solenoid valve, a variable frequency delivery pump, and a first flow meter. A flow regulating valve and a second flow meter are installed on the pressure water pipe. All components are connected to the first control device. The foam liquid filling vehicle contains a foam liquid storage tank, a variable frequency high-pressure pump, a battery, a third flow meter, and a second control device. Both the first and second control devices are connected to the monitoring center. This utility model provides a highly efficient, intelligent, and easy-to-maintain tunnel fire-fighting foam liquid filling system.

The utility model relates to the technical field of three -way joint, specifically disclose a joint that flow three -way adjustable, including three -way body, the left and right two ends of three -way body are all linked with connecting barrel, the left and right sides in three -way body inside all slide and connect with the movable cylinder in connecting barrel inside, two the upper and lower sides of movable cylinder outer wall all are equipped with through -hole, the inside penetration of three -way body is rotatably connected with first rotation axis, the outer wall of first rotation axis is fixedly connected with gear, the outer wall of gear is engaged with two straight racks, two straight rack other end is fixedly connected with two movable cylinders respectively, the lower end surface of first rotation axis is fixedly connected with carousel, through second rotation axis, worm, worm wheel, carousel, first rotation axis, gear, straight rack, movable cylinder and connecting barrel cooperation, can adjust the degree of closure of multiple through -hole, to accurate regulation the flow of liquid that flows out from through -hole, has the characteristics such as simple adjustment, control accurate.

The utility model discloses a locking structure of butterfly valve handle, including the connecting frame of fixed in the top of butterfly valve, one side of connecting frame top is provided with rotating mechanism, and the other side of connecting frame top is provided with the bayonet lock mechanism, the bayonet lock mechanism includes the mount pad of fixed on the outer wall of connecting frame top, and the inside of mount pad is slidably provided with the bolt, and one side of bolt is fixedly connected with connecting rod no.

The invention provides an automatic temperature control explosion-proof device and method without external force driving, and the device comprises a first main pipeline, a second main pipeline which is connected in series with the first main pipeline and is communicated with the first main pipeline, and a remote control integrated circuit board which is used for detecting the operation states of the first main pipeline and the second main pipeline. The first main pipeline and the second main pipeline are connected to a steam pipeline in series, a first check valve and a pressure reducing valve are sequentially connected to the first main pipeline in series, two first auxiliary pipelines communicated with the first main pipeline are arranged between the first check valve and the first main pipeline, a pressure release valve is installed in one auxiliary pipeline, and a pressure reducing valve is installed in the other auxiliary pipeline. A first electric ball valve and a first manual ball valve are installed in the other auxiliary pipeline, the first electric ball valve and the first manual ball valve are connected in parallel in the auxiliary pipeline, temperature and pressure changes in the pipeline can be monitored in real time through a pressure sensor, a thermometer and an electric actuator, and when the temperature and the pressure exceed set values, the first electric ball valve and the first manual ball valve are switched off. And a response is quickly made to carry out pressure reduction and temperature reduction treatment.

The utility model relates to phosphor copper brazing filler metal production equipment technical field especially relates to a kind of phosphor copper brazing filler metal production crystallizer flow regulating structure, including machine body, machine body is opened in crystallization cavity, and the through-hole is opened in axial two ends, the top of crystallization cavity is fixedly connected with feed pipe, the top of feed pipe is fixedly connected with adjusting pipe, the inner ring surface of adjusting pipe is fixedly connected with circular column, one end of circular column towards feed pipe is opened with moving groove, slidingly connected with sliding cylinder in moving groove, the outer ring surface of sliding cylinder is opened with multiple evenly distributed filter holes, flow sensor can real-time monitoring the flow condition of phosphor copper liquid, realize stable movement under the cooperation of guide column, to accurately adjust the flow of feed pipe, filter hole on sliding cylinder can intercept metal impurities, reduce equipment cost, simultaneously, the structure realizes the automatic regulation of flow, without manual intervention, reduce the error and hysteresis brought by human operation, and then improve the production quality and efficiency of phosphor copper brazing filler metal.

The present invention discloses an adjustable segmented reverse osmosis membrane detection system, comprising a raw water tank, a produced water tank, a concentrated water tank and an electronic control device, as well as a first reverse osmosis membrane device, a second reverse osmosis membrane device, a third reverse osmosis membrane device and a fourth reverse osmosis membrane device connected in parallel. The system is equipped with four sets of reverse osmosis membrane devices, and can realize four operation modes of one or more operation through valve adjustment; it is equipped with a raw water tank, a produced water tank and a concentrated water tank, and can realize the switching between continuous self-circulation operation and non-self-circulation operation of the system through valve adjustment.

The utility model relates to the technical field of spraying machines, and discloses a spraying flow-adjustable spraying machine which comprises a movable supporting frame, a supporting plate is fixedly installed at the top of the movable supporting frame, a pressure pump is fixedly installed at the top of the supporting plate, a pressurizing chamber is arranged at the top of the pressure pump, and a flow adjusting mechanism is arranged outside the pressurizing chamber. An auxiliary spraying mechanism is arranged at the top of the supporting plate, a threaded rod rotates, a pressing disc downwards extrudes spraying paint into a pressurizing chamber, the flow of the spraying paint is adjusted, then the interior of the pressurizing chamber is pressurized through a pressurizing pump, the internal shielding area of a fixing ring is adjusted by unfolding a shielding block, flow adjustment is achieved, and the flow of the spraying paint is accurately adjusted through two-position adjustment; and a rotating rod is driven by a second motor to rotate, so that a rotating block slides in a cam groove of the rotating rod, a lifting plate reciprocates outside a limiting column, a handheld spraying head uniformly sprays to a target position, and the practicability of the device is improved.

The utility model provides plasma machine medicament feeding equipment, which belongs to the technical field of plasma, and comprises a supporting assembly, a bottom plate, a stand column fixedly connected to the upper end of the bottom plate, a supporting plate inserted at the end part of the stand column, a supporting column fixedly connected to the side wall of the end part of the supporting plate, and a bracket inserted at the end part of the supporting column, the feeding assembly comprises a hopper fixedly connected to the end of the support, a base fixedly connected to the side wall of the bottom plate, a rotating disc rotationally installed at the upper end of the base, and a material box fixedly connected to the middle of the rotating disc. The feeding device has the advantages that the supporting assembly and the feeding assembly are used in cooperation, so that the material box can evenly receive chemicals, feeding precision is improved, the flow of the chemicals can be accurately adjusted, the working requirements of different plasma machines are met, the chemicals are effectively prevented from being blocked in the hopper, continuous operation of the feeding device is guaranteed, and production efficiency is improved. And the reliability of the equipment is improved.

The utility model relates to the technical field of electroplating liquid supplementing, in particular to an automobile part electroplating liquid supplementing device which comprises a liquid storage tank and a reset assembly, an installation piece is arranged on the liquid storage tank, a transmission piece is arranged on the installation piece, a sealing piece is arranged on the transmission piece and arranged on the outer wall of the liquid storage tank, a liquid outlet hole is formed in the bottom end of the liquid storage tank, and the reset assembly is arranged in the liquid storage tank. A blocking piece is arranged on one side of the liquid outlet hole of the liquid storage box, the sealing piece is in contact connection with the blocking piece and arranged at the liquid outlet hole of the liquid storage box, and the reset assembly is arranged on the transmission piece and connected with the installation piece in a matched mode. The driving assembly is arranged on the liquid storage tank, and the driving assembly is used for driving the sealing piece to rotate by the transmission piece; the liquid supplementing amount is convenient to control, and operation is convenient.

The invention relates to the technical field of geothermal energy development, and discloses a wellhead device for a medium-deep geothermal underground heat exchange well, which comprises a wellhead main body, one side of the wellhead main body is provided with a petroleum casing pipe, and the other side of the wellhead main body is connected with a sealing gland; a heat exchange inner pipe is arranged in the petroleum casing pipe, and the heat exchange inner pipe is communicated with the water supply pipeline through a flange connecting disc; the elastic sealing ring is used for being deformed after being extruded to fill a gap between the sealing gland and the wellhead main body; the supporting device is arranged on one face of the sealing gland, and the vertical face of the supporting device makes contact with the water supply pipeline; and the water return pipeline communicates with the wellhead main body and is used for guiding the heat exchange water to flow out. The outer wall of the water supply pipeline is supported by the vertical surface of the supporting device, so that the fixing and supporting stability of the water supply pipeline and the heat exchange pipe can be enhanced, the possibility of deformation or damage of the heat exchange pipe caused by gravity or external force can be reduced, the service life of the heat exchange pipe is prolonged, and the long-term stability of the heat exchange effect is ensured.

A large-particle solder feeder, with a barrel installed on the upper part of the shell, the nozzle of the barrel extends into the shell, a conveyor belt and a flow regulating mechanism are arranged in the shell, the main and auxiliary material outlets are arranged at the bottom, a driving device is arranged on the outside, a chamber shell is arranged on the outside of the bottom of the shell, a feed hole, an auxiliary material chamber and an auxiliary material hole are arranged in the chamber shell, the feed hole is connected with the main material outlet, the auxiliary material chamber is connected with the auxiliary material outlet and the auxiliary material hole at the bottom; one end of the conveyor belt is below the nozzle, and the other end is above the main material outlet, driven by the driving device; the flow regulating mechanism is arranged above the main material outlet, with two blocks and a fixed block fixed in the shell, the blocks are connected side by side to one side of the fixed block to form a U-shaped structure with the opening aligned with the end of the conveyor belt, the gap is aligned with the main material outlet and the spacing of the gap is adjustable. The present invention can accurately control the flow of solder by adjusting the distance between the nozzle and the conveyor belt, the speed of the conveyor belt and the flow regulating mechanism, and at the same time, the large-particle solder is not crushed or crushed.

The invention relates to the technical field of thermal management of fuel cells, and discloses a low-energy-consumption thermal management system and method for energy efficiency of a hydrogen fuel stack, and the system comprises a liquid hydrogen storage tank, a hydrogen generator, a waste heat and waste heat exchanger, an anode reactant pipeline, a fuel cell stack and a cathode reactant pipeline, according to the invention, the liquid hydrogen is used as a reactant and a coolant at the same time, thermal management is carried out on the hydrogen fuel cell stack through low-temperature hydrogen generated by heating the liquid hydrogen, and the generated hydrogen is directly used as a reactant to be fed into the anode of the stack, so that the system configuration of three loops of the traditional fuel stack is simplified; and the energy utilization efficiency of the hydrogen fuel cell is improved by utilizing the waste heat of the electric pile, and the energy consumption of the whole system is effectively reduced.

This utility model discloses a bread dough fermentation device, relating to the field of bread production technology. It aims to overcome the shortcomings of existing equipment, such as uneven temperature and humidity, uncontrollable exhaust flow, poor condensate drainage, and inconvenient monitoring and operation. The device includes a cabinet with a hinged door at the front, featuring a sealing gasket and observation window. Inside the cabinet, on both sides, are air inlet chambers and exhaust chambers. An air inlet pipe is connected to the bottom of the air inlet chamber, and an exhaust pipe is connected to the top of the exhaust chamber. These chambers are separated into multiple fermentation compartments by multiple sets of partitions. Each air inlet chamber has an air inlet with a guide hood and air inlet grille corresponding to its fermentation compartment, and each exhaust chamber has an exhaust outlet with an exhaust grille corresponding to its exhaust compartment. A telescopic cylinder drives a pull rod on the top of the cabinet, which in turn drives a baffle to control the exhaust flow. Each fermentation compartment contains a support frame, temperature and humidity sensors, and drain pipes are installed at the bottom of both the air inlet and exhaust chambers. This device achieves uniform temperature and humidity distribution, precise exhaust flow adjustment, convenient condensate drainage, and is easy to observe and monitor, making it suitable for bread production.

The utility model discloses a stainless steel fast-assembly butterfly valve convenient to adjust flow, which comprises a stainless steel butterfly valve body and an adjusting mechanism, flange plates are fixedly arranged on the front side and the rear side of the stainless steel butterfly valve body, and an anti-corrosion sealing ring is arranged on the inner side of the stainless steel butterfly valve body. A support is fixedly installed at the upper end of the stainless steel butterfly valve body, a valve seat is installed on the upper surface of the support, the rotating mechanism comprises a push rod, a gear ring, a fixing rod and a gear, the adjusting mechanism comprises a push rod, a connecting rod and a fixing plate, and the fixing plate is installed at the upper end of the connecting rod. According to the stainless steel fast-assembly butterfly valve convenient to adjust the flow, the rotating mechanism can assist the valve rod to drive the butterfly plate to rotate, manpower is saved, operation is convenient, the adjusting mechanism is arranged to conveniently adjust the flow of the butterfly valve, the fixing assembly can fix the adjusting mechanism, the flow can be accurately adjusted, and the reinforcing assembly is arranged to prevent the butterfly plate from being impacted and damaged by too large water flow; the service life is prolonged.

The utility model relates to the technical field of agricultural planting, and discloses a precise hybrid pollination tool for watermelons and melons, which comprises a shell, a pipeline is fixedly connected in the shell, an adjusting mechanism is arranged in the pipeline, an air bag is arranged outside the shell, a liquid storage tank is fixedly connected at the rear end of the pipeline, and the liquid storage tank is connected with a water pump. A dismounting mechanism is arranged outside the shell; and the adjusting mechanism comprises a limiting block, the exterior of the limiting block is fixedly connected to the interior of the pipeline, a sliding ring is slidably connected to the exterior of the limiting block, a transmission rod is rotatably connected to the front end of the sliding ring, and a second rotating rod is rotatably connected to the front end of the transmission rod. According to the pollination device, the rotating rod pushes the sliding ring to slide in the limiting block through the transmission rod, the circulation range of the circulation groove is adjusted, accurate adjustment of the flow of pollination liquid is achieved, the requirements of flowers of different watermelon varieties for the pollen amount are met, the pollination success rate is increased, and pollen waste is avoided.