2results about How to "Simplify pipeline structure" patented technology

The utility model discloses an electric water heater, including water bladder, phase change bladder, water supply line and circulating pipeline, and phase change bladder includes heat exchanger, and circulating pipeline is used to communicate the water bladder and heat exchanger, and one side of water supply line can be communicated with water source, and the switch device is provided on circulating pipeline, and the switch device has first state and second state, when the switch device is in first state, the water in water bladder can circulate and flow between water bladder and heat exchanger, when the switch device is in second state, the water in water bladder can not circulate and flow between water bladder and heat exchanger, and the water in water supply line can flow into heat exchanger, water bladder in proper order, or, can flow into water bladder, heat exchanger in proper order. The electric water heater provided in the application embodiment, through the reasonable and ingenious waterway design, can not only guarantee efficient energy storage, but also can realize stable and comfortable water supply to the water terminal.

The application provides a wet grinding and polishing device and a polishing control system, and belongs to the technical field of polishing devices. The polishing device comprises a polishing table, a polishing piece and a control assembly. The polishing piece has a working surface and a first channel, and the first channel is in communication with the control assembly. The control assembly comprises a control chamber and a movable block. The control chamber has a negative pressure port, an atmospheric pressure port, a cleaning port and a connecting port in communication with the first channel. The movable block is movably installed in the control chamber and has a second channel. One end of the second channel is in communication with the connecting port, and the other end is a butt joint end. In the case that the butt joint end is in communication with the atmospheric pressure port, the movable block can respond to the negative pressure port to realize the communication between the butt joint end and the negative pressure port, or the movable block can respond to the cleaning port to realize the communication between the butt joint end and the cleaning port. The application realizes the switching of the polishing device state under the driving of the negative pressure source and the cleaning assembly by setting the movement of the movable block, and simplifies the pipeline structure of the polishing device.