4results about How to "Increase water flow area" patented technology

The application provides a water distribution lane structure of a mine underground drainage pump house, belongs to the technical field of mine underground drainage, and is characterized in that: a first water distribution well and a second water distribution well which are independently arranged are respectively connected with a water sump and a water distribution lane, and a shared intermediate water distribution lane is further connected between the first water distribution well and the second water distribution well; each water distribution lane is respectively connected with a water suction well, and at least one water distribution gate valve is arranged at the connection between the first water distribution well, the second water distribution well, the water sump and the intermediate water distribution lane; the application can ensure the operation of the mine underground drainage system when any water sump is cleaned under normal water inflow, can facilitate cleaning and reduce the labor intensity of workers, and can reduce the engineering quantity.

The utility model discloses a water outlet device, including flow channel subassembly, switch valve and casing, flow channel subassembly is located in the casing, switch valve is inserted with flow channel subassembly, and flow channel subassembly has water inlet flow channel, first water flow channel and second water flow channel, and switch valve is used for changing the communication relation of water inlet flow channel and first water flow channel and second water flow channel, and the circumferential side wall of casing is provided with the gap, water outlet device still includes water outlet control assembly, and water outlet control assembly sets up in the water outlet end of first water flow channel, and water outlet control assembly includes first water flow channel and second water flow channel, and part circumferential side wall of water outlet control assembly is exposed from the gap, when rotating or moving water outlet control assembly through the gap, first water flow channel is communicated with first water flow channel or second water flow channel. The utility model can satisfy the demand of different flow of user under different use scene, and can satisfy the demand of various water flower of user to water outlet device, and the water outlet function of water outlet device is enriched.

This invention discloses a nucleogranulation device and its operating method, comprising an annular water distribution pipe installed below a tank, a sludge pipe installed on the tank at the bottom of the annular water distribution pipe, and a granulation reaction zone, a concentration zone, a separation zone, an inclined plate clarification zone, and an overflow trough arranged sequentially from bottom to top above the annular water distribution pipe. A packing device is installed in the separation zone; a drain outlet is provided on the overflow trough; a hollow barrel is located at the center of the granulation reaction zone, and an axial flow pump is installed inside the hollow barrel. The axial flow pump is used to pump part of the water in the concentration zone into the central hollow barrel and transport it to the center of the annular water distribution pipe, with the hollow barrel located directly above the annular water distribution pipe. A water flow disperser is installed at the bottom of the annular water distribution pipe. This invention can increase the operating load, increase the treatment depth, effectively improve the operating load and sludge concentration effect, and the discharged sludge can be directly dewatered, thus improving the effluent quality.

The utility model discloses a throttle valve and water purification equipment, and belongs to the technical field of throttle valve devices. At least two stages of flow limiting holes are formed in the throttling valve, and the water passing area of the adjacent second-stage flow limiting hole in the at least two stages of flow limiting holes is larger than that of the first-stage flow limiting hole. The water passing area of the first-stage flow limiting hole closest to the liquid inlet hole is set to be minimum, the water passing area of the flow limiting holes is increased step by step subsequently, the pressure difference between the front portions and the rear portions of the flow limiting holes is reduced, the flow speed of jet water flow is reduced after liquid enters the throttling valve through the liquid inlet hole, noise of the throttling valve is effectively reduced, and the use experience feeling of a user is improved. For example, the pressure difference before and after the second-stage flow limiting hole is smaller than the pressure difference before and after the first-stage flow limiting hole.