5 results about "Fluid pipe" patented technology

The utility model relates to fluid jet device technical field especially relates to a nozzle device of adjustable flow, including device body, device body includes spout subassembly, nozzle body and flow regulating mechanism, spout subassembly and nozzle body are provided with snap spring between, spout subassembly is detachably connected in the front end of nozzle body through snap spring, the rear end of nozzle body is provided with joint, the inside of joint is provided with screw thread, flow regulating mechanism is connected with joint through screw thread, flow regulating mechanism includes connecting casing, handle adjusting assembly and connecting fastening nut, the front end of connecting casing is connected with joint, handle adjusting assembly is embedded in the middle part of connecting casing, is used for adjusting the flow of fluid into nozzle body, connecting fastening nut is installed in the rear end of connecting casing, is used for accessing fluid pipeline, the utility model structure is simple, flow regulation is convenient, and dismounting is flexible and easy to maintain and sealed reliably, can be widely applied to the scene that needs flexible regulation jet flow.

A device (10a; 10b; 30) for measuring a first pressure (PO) in a first fluid and a second pressure (PW) in a second fluid, at a location in a hydrocarbon zone (ZO) in a subterranean formation (9) comprises a water-filled system with a pressure-sensitive chamber (8a; 8b), a ceramic member (3), and a fluid conduit (7) fluidly connecting the pressure-sensitive chamber and the ceramic member, and a flow control device (5; 6; 12, 14; 41, 40) arranged in the fluid conduit at a location between the ceramic member and the pressure-sensitive chamber. A pressure sensor (4) is arranged between the ceramic member and the flow control device and configured and arranged for measuring the pressure (PM) in the fluid conduit. The flow control device is operable to allow displacement of water through the ceramic member and towards at portion of the formation the outside the device. The invention comprises a dual pressure measurement system built around one pressure sensor. The invented apparatus uses one and same pressure sensor to measure two individual pressures in a subterranean reservoir at a given sensor location.

The present invention relates to devices for detecting the possibility of rupture in a fluid pipe 1. The device according to the invention comprises means for detecting, on at least a portion 2 of the pipe 1, a deformation of the wall of that portion of the pipe, these means essentially consisting of means for detecting variations in the length of the outer perimeter of a cross-section of the portion of the pipe 2. Figure 1

The present invention relates to devices for detecting the possibility of rupture of a fluid pipe 1. The device according to the invention comprises means for detecting, on at least a portion 2 of the pipe 1, a deformation of the wall of that portion of the pipe.

The present application relates to the technical fields of fluid pipe network control, and discloses an opening control system and control method of an intelligent temperature control valve, comprising a reference calibration module for controlling a driving motor to perform a reciprocating stroke to generate a static friction reference value; a state acquisition module for acquiring a target opening instruction, fluid temperature and phase current sequence; a threshold calculation module for purifying a current signal and combining a water supply temperature and the static friction reference value to reconstruct a dynamic critical threshold value; a friction determination module for comparing a real-time distortion rate with the dynamic critical threshold value to generate a locking or sliding state; an envelope generation module for identifying a thermal time constant and calculating a flutter amplitude reference; and a composite driving module for outputting a composite driving signal of a conventional PWM or a superimposed flutter waveform according to the corresponding state. Through adaptive dynamic threshold reconstruction and flutter waveform intervention, the present application overcomes the dead zone sticking error caused by temperature drift, eliminates the step mutation and hydraulic overshoot during fine tuning, and realizes smooth and accurate flow regulation.