35results about How to "Control water pressure" patented technology

The invention provides a green crab aquaculture system, which belongs to the technical field of aquaculture, and solves the technical problems of low survival rate of green crabs and the like of the existing green crab aquaculture system. The green crab aquaculture system comprises a seawater purification device, a seawater heating device and a sewage treatment unit, wherein the seawater purification device is communicated with the seawater heating device, the aquaculture system further comprises a box bracket, a plurality of aquaculture boxes which can accommodate at least one green crab are arranged on the box bracket, water inlets and water outlets are arranged on the aquaculture boxes, the water inlets are connected with the seawater heating device through water inlet pipelines, the water outlets are communicated with the sewage treatment unit through drainage pipelines, and crab taking ports are arranged on the aquaculture boxes. The invention has the advantages of high survival rate of the green crabs, high aquaculture efficiency, high utilization rate of aquaculture facilities, obvious aquaculture benefit, convenience in monitoring and the like.

The invention relates to an energy storage and flow increasing device for air energy heating and cooling projects, and relates to the field of air energy cooling and heating projects, in particular tothe technical field of energy storage and flow increasing devices for the air energy cooling and heating projects. The main technical problem to be solved is that when air energy heating and coolingequipment is connected to an indoor fan, floor heating or finned radiators, pipes often need to exhaust air, working conditions such as insufficient water flow, temperature difference protection, highpressure protection and temperature deviation protection often happen, the working effect is poor, a compressor is started frequently, and energy is wasted. In order to solve the problem, it is necessary to invent the energy storage and flow increasing device for the air energy heating and cooling projects. A main method to solve the problem is that an intelligent electric water supply valve effectively controls the water pressure in an expansion water tank, air in a waterway system is exhausted through an exhaust valve, a balanced rectifier valve controls the water flow to be uniform and stable, and the insufficient water flow and starting of temperature difference protection, high pressure protection and temperature deviation protection and the like due to often exhausting and unstablewater flow of the system are effectively avoided; and through the energy storage effect of the amount of water stored in the expansion tank, the water flow is increased, and the equipment working efficiency is improved.

The invention relates to a double-vortex drainage type water pool floating object clearing device based on cloud diagram. The clearing device comprises a first water pumping pipe, a second water pumping pipe, a first water pump machine, a second water pump machine, a net cover, a first controller, a second controller and controllable visual monitors, wherein a water inlet of the first water pumping pipe and a water inlet of the second water pumping pipe formed in the bottom of a water pool and are formed upwards, propellers and filter screens are arranged at the water inlet of the first waterpumping pipe and the water inlet of the second water pumping pipe from top to bottom, a water outlet of the first water pumping pipe communicates with the water inlet of the first water pump machine,a water outlet of the second water pumping pipe communicates with the water inlet of the second water pump machine, water guns are connected to a water outlet of the first water pump machine and a water outlet of the second water pump machine, the water guns and the net cover are arranged on the circumferential wall of the water pool, and the controllable visual monitors are arranged on the periphery of the water pool and are connected to the input end of the first controller and the input end of the second controller. The clearing device has the advantages that automatic clearing of the waterpool can be realized, the efficiency is high, the clearing effect is good.

The invention discloses a method and a device for a water-impact-resistant test on a building element after a fire-resistant test. The method comprises the following steps of: impacting the surface of a high-temperature test piece after the fire-resistant test via a high-pressure water column, controlling the pressure of the water column by a controller, so as to obtain an evaluation of the water-impact-resistant performance of the test piece after the fire-resistant test according to the pressure of the high-pressure water column, the impacting time of the water column, and the states of the test piece after the test. The device comprises a water tank, a water pump, a frequency converter, a PID (proportion integration differentiation) controller, a pressure sensor and a water gun, wherein the water pump is used for pumping water in the water tank to the water gun, the pressure sensor is arranged on a downstream pipeline of the water pump, and the pressure sensor is connected with the PID controller; the PID controller is connected with the frequency converter; and the frequency converter is connected with the water pump. According to the method and the device disclosed by the invention, the water-impact-resistant performance test on the building element after the fire-resistant test is performed, so that the fire safety performance of the building element can be comprehensively evaluated, and the water-impact-resistant performance test is extremely high in theoretical research and practical application value; and moreover, a PID control technology is used for control, so that the test is accurate.

The invention provides an output voltage control method for a booster pump. The method comprises the steps of detecting the operation parameters of the booster pump; adjusting the output voltage of the booster pump according to the operation parameters of the booster pump. The invention further provides an output voltage control device for the booster pump. Because change of the output voltage of the booster pump causes change of the rotation speed of the booster pump and change of the rotation speed of the booster pump causes change of the water output pressure of the booster pump, the water output pressure of the booster pump can be effectively adjusted and can be controlled by adjusting the output voltage of the booster pump.

The invention relates to a battery production process, and discloses a cast welding process for the ultra-large busbar of a nuclear 1E-grade lead-acid storage battery. The cast welding process comprises the following steps: cast-welding is carried out by adopting a cast-welding machine, and the temperature of a lead pan is set to be 440-470 DEG C and the temperature of a mold core to be 140-160 DEG C in the cast-welding process; a lead pan of the cast-welding machine is heated to 440-470 DEG C; the lead liquid enters a mold cavity; after the mold cavity is filled with the lead liquid, the tabs are inserted into the busbars of the mold, and the tabs are combined with the busbars; when a temperature probe detects that the temperature of the mold core rises to 140-160 DEG C, water enters a cooling water channel for cooling, and cooling is stopped until the temperature of the mold core falls back to 140-160 DEG C; and demolding is carried out. The cast welding process can be suitable for cast welding of a large lead-acid battery, the cooling starting point and the cooling ending point are well controlled through the temperature, the cooling effect of the busbar is controllable, meanwhile, the cooling speed conforms to the shrinkage speed during alloy cooling, and shrinkage cavities are completely eradicated; and the heat for cast welding of each busbar each time can be ensured to be consistent, and the cast welding effect consistency is good.

The invention relates to a battery production process, and discloses a casting and welding process for a super-large busbar of a nuclear 1E-level lead-acid battery, which includes using a casting welding machine to perform casting welding. The core temperature is 140‑160℃; the lead pot of the casting and welding machine is heated to 440‑470℃; the lead liquid enters the mold cavity; after the lead liquid in the mold cavity is filled, the tabs are inserted into the busbars of the mold, and the tabs are connected to the busbars. When the temperature probe detects that the temperature of the mold core rises to 140-160°C, the cooling water channel enters the water for cooling until the temperature of the mold core drops to 140-160°C, and then stops cooling; demoulding. The invention can be applied to the casting and welding of large lead-acid batteries, and the cooling start point and end point of the cooling can be controlled by the temperature, so that the cooling effect of the busbar can be controlled, and the cooling speed can meet the shrinkage speed of the alloy when it is cooled, so as to prevent the occurrence of shrinkage holes; The heat of each busbar is consistent in each casting and welding, and the consistency of casting and welding effect is better.

The invention discloses a machining center built-in flushing gun capable of conveniently adjusting the angle. The machining center built-in flushing gun comprises a base. The bottom of the base is fixedly connected with two bolts which are symmetrical left and right. The bottom of the base is fixedly connected with a connecting rod positioned between the two bolts. According to the machining center built-in flushing gun capable of conveniently adjusting the angle, a screw sliding rail, sliding blocks and connecting holes are arranged so as to play a role that the sliding blocks can slide on the outer surface of the screw sliding rail, so that the left and right positions and the front and rear positions of the sliding blocks are directly changed while sliding, and the positions of water guns are driven to change, so that the flushing angles of the water guns are greatly convenient to adjust, the front and rear positions can be adjusted instead of a single adjustment on the same plane,and the adjustment of the angle is more ideal, so that the flushing of workpieces in the processing process is more thorough, the cooling and lubricating effects are better, the processing quality ofthe workpieces is ensured, and the effect of improving the processing quality is achieved.

The invention relates to a double-vortex drainage type water pool floating object clearing device based on cloud diagram. The clearing device comprises a first water pumping pipe, a second water pumping pipe, a first water pump machine, a second water pump machine, a net cover, a first controller, a second controller and controllable visual monitors, wherein a water inlet of the first water pumping pipe and a water inlet of the second water pumping pipe formed in the bottom of a water pool and are formed upwards, propellers and filter screens are arranged at the water inlet of the first waterpumping pipe and the water inlet of the second water pumping pipe from top to bottom, a water outlet of the first water pumping pipe communicates with the water inlet of the first water pump machine,a water outlet of the second water pumping pipe communicates with the water inlet of the second water pump machine, water guns are connected to a water outlet of the first water pump machine and a water outlet of the second water pump machine, the water guns and the net cover are arranged on the circumferential wall of the water pool, and the controllable visual monitors are arranged on the periphery of the water pool and are connected to the input end of the first controller and the input end of the second controller. The clearing device has the advantages that automatic clearing of the waterpool can be realized, the efficiency is high, the clearing effect is good.

The invention belongs to the field of heat treatment of metal plates and strips, and discloses a water spray system and a control method for the heat treatment of metal plates and strips. The system includes diversion water collector, diversion water supply pipeline, control valve group, and control system. The control method includes water pressure adjustment method and water flow adjustment method. Constant pressure water supply, three control valve group configuration modes are designed according to the variety and specification of metal plate and strip material, production rhythm and heat treatment process, and the double closed-loop control of water pressure and water flow is realized. The invention satisfies the requirement of precise control of the water flow, water pressure and cooling path of the water spray system with multiple varieties, variable specifications, complex heat treatment process and production rhythm, and has fast adjustment speed, good stability, water saving and energy saving, high degree of automation, and realizes High flatness, high uniformity and high efficiency heat treatment of metal plate and strip.

The invention discloses a loading system for drilling high pressure water pressure test. The loading system includes a test chamber and a water reservoir located in the test observation hole; the test chamber and the water reservoir are connected through a water inlet pipe, and a high-pressure water pump group is housed on the water inlet pipe; the connection between the test chamber and the high-pressure water pump group A water return pipe is connected between the water inlet ends, and a pressure gauge is installed on the water return pipe. The invention improves the pipeline connection mode of the drilling high-pressure water test loading system, adds a return water pipe, and forms a double pipeline connection mode with the water inlet pipe. Adjust the pressure at the return pipe to control the water pressure value of the test chamber. When the pressure sensor is connected to test the water pressure of the test chamber, it will not be affected by the flow state of the water inlet pipe, and the loss of the water head in the pipeline is small; It is relatively safe for the drilling high-pressure water test of the design pressure value.

The invention provides a flow regulating and pressure regulating valve, and belongs to the field of valves. The flow regulating and pressure regulating valve comprises a valve body, wherein the valvebody is at least divided into two parts, namely a left valve body and a right valve body; a water inlet is formed in the left side of the left valve body, the left valve body is internally provided with a flow guide cylinder which is integrally connected with the left valve body, and a water flow channel is formed between the flow guide cylinder and the valve body; the right end of the right valvebody is provided with a water outlet, the side wall of the right valve body is provided with a sewage outlet, the sewage outlet is close to the water outlet, a piston is arranged at the water outlet,the piston and the contact surface of the water outlet is tightly attached, and the piston is rotationally connected with a rocker arm through a connecting rod; the rocker arm is connected to a rotating shaft in a sleeving mode, the rotating shaft penetrates through the side wall of the left valve body, the end, extending out the side wall, of the rotating shaft is connected with a driving device, and the rotating shaft drives the piston to linearly move through the driving device. The flow regulating and pressure regulating valve has the advantages that the water flow size is automatically adjusted, the pipeline impact force is reduced, the pipeline pressure is reduced, and the flow regulating and pressure regulating valve is flexible and reliable.

A measurement system and method for a falling head permeability coefficient, relating to the technical field of rock seepage experiments, solving the technical problem of long time consumed by a permeability test, eliminating the impact of temperature and pressure changes on permeability coefficient measurement. The system comprises a liquid storage system (1), a test system (2), a control system (3), and a data processing system (4); the liquid storage system (1) comprises a water storage barrel (11), a sealing cover (12), and an adaption box (13); a water injection opening (121) and an air inlet (122) are provided on the sealing cover (12); the test system (2) comprises a test bench (21), a water guide pipe (22), and a test barrel (23); the water guide pipe (22) is connected to the test barrel (23); the control system (3) comprises an automatic control valve (31), a heating rod (32), an air inlet pipe (34), a high-pressure gas tank (35), and a pressure reducing valve (36); the automatic control valve (31) is connected to the adaption box (13); the high-pressure gas tank (35) is communicated with the air inlet (122); the data processing system (4) comprises a signal acquisition device (41) and a computer (42). Also disclosed is a method for determining a permeability coefficient by means of instantaneous Darcy's law and the system. The present system and method have the beneficial effects of high degree of automation, short test period, and more accurate measurement.

The invention provides a modular intelligent in-situ active purification system for underground water of a uranium tailing pond. The purification system comprises an underground purification unit andan overground control unit, the underground purification unit comprises a plurality of modular purification columns which are perpendicular to the water flow direction and are arranged in the purification area; the overground control unit comprises a plurality of water suction pumps connected with the modular purification columns and an Internet of Things information console connected with the water suction pumps; and the Internet of Things information console regulates and controls the water pressure in the modular purification columns by controlling the operation of the water suction pumps.In this way, the service life of the purification system can be effectively prolonged, and meanwhile the operation cost is greatly reduced; and the operation state of the water suction pump is controlled through the Internet of Things console, intelligent regulation and control over the water pressure in the modular purification column are achieved, then active purification of underground water isachieved so as to adapt to complex underground water conditions, the utilization efficiency of filler is improved, and high practical application value is achieved.