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 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.