68 results about "Fluid pipe" patented technology

A downhole pumping system for subsea use is provided. The pumping system is designed such that all fluid conduits and electrical signal conduits are internalized within the pumping assembly. This design provides a substantially constant and elongated profile for the pumping assembly. The pumping assembly includes a housing containing the power assembly, a power actuator assembly operably linked to the production fluid assembly, and a central bore extending through the pumping assembly to provide fluid communication between the power assembly and a first end of the pumping assembly. The pumping system also includes a flow distributor / connector at the first end or the pump head for providing fluid communication between the pump head and a delivery system extending from the surface to the pumping system. The communicating fluids include a high pressure power hydraulic fluid, a low pressure discharge hydraulic fluid, and a pressurized production wellbore fluid.

Fluid meter, namely heat quantity meter (1) for recording the quantity of cold and / or heat of a fluid, for installation in a supply line (20) or return line (21) of a fluid piping system, comprising - a connection housing (2), - a measuring arrangement for determining flow rates, - a control and evaluation unit (3) as well as - a first temperature sensor (4) which is intended for installation in the flow line (20) and is intended there for determining the temperature in the flow line (20), - a second temperature sensor (5), which is intended for installation in the return line (21) and is intended there for determining the temperature in the return line (21), - wherein a means for determining the temperature of the connection housing (2) of the fluid meter is provided, - wherein a temperature difference between the temperature of the connection housing (2) of the fluid meter and at least one of the temperatures of the first (4) and second temperature sensor (5) can be determined, wherein the control and evaluation unit (3) determines, on the basis of the determined temperature difference between the temperature of the fluid meter and at least one of the temperatures of the first and second temperature sensors (4, 5), which of the temperature sensors (4, 5) is installed in the supply line (20) or return line (21), wherein the measuring arrangement for determining the flow rate is provided as a means for determining the temperature of the connection housing (2) of the fluid meter, where the temperature sensors (4, 5) are automatically assigned to the flow (20) or return (21), wherein the temperature of the connection housing (2) of the fluid meter is determined on the basis of a temperature-dependent transit time of an ultrasonic signal in the fluid, and wherein a look-up table is provided in which the transit times of the ultrasonic signal in the fluid are stored as a function of the corresponding temperature of the fluid and / or the connection housing (2) of the fluid meter and the temperature to be determined of the connection housing (2) of the fluid meter can be derived from the transit time of the ultrasonic signal and the look-up table.

The invention relates to a compressor arrangement comprising a compressor (2) for compressing a process gas (13) from a suction region (21) towards a pressure region (22), a mechanical seal arrangement (3) for sealing against an atmosphere (6) on a shaft (5) of the compressor (2), wherein the mechanical seal arrangement comprises a mechanical seal (4) having a stationary slide ring (41) with a first sliding surface (41a) and a rotating slide ring (42) with a second sliding surface (42a), which define a sealing gap (42a) between the sliding surfaces (41a, 42a), and a barrier fluid supply (7) with a barrier fluid line (70) which extends from the pressure region (22) of the compressor (2) to the mechanical seal (4) and through which process gas is branched off from the pressure region, the stationary slide ring (41) having a through opening (8), which extends from a rear side (41b) of the stationary slide ring (41) to an orifice at the first sliding surface (41a) of the stationary slide ring to supply process gas from the barrier fluid line (70) through the stationary slide ring (41) to the sealing gap (40).

This disclosure presents methods and systems of controlling a counter flow double pipe heat exchanger (DPHE) that includes a hot fluid pipe and a cold fluid pipe. In a method, a temperature error between a reference temperature and a temperature at an outlet of the hot fluid pipe of the counter flow DPHE is determined. A cold fluid mass flow rate is determined from an output of a proportional-integral-derivative (PID) controller based on the temperature error being input to the PID controller. The cold fluid mass flow rate is used for a cold fluid in the cold fluid pipe of the counter flow DPHE. The temperature error is controlled within a predefined range by utilizing parameters of the PID controller that are set by using a harmony search algorithm (HSA) to obtain a minimization of a cost function.

To restrain a force applied to a fluid pipe from propagating to a water heat exchanger.SOLUTION: An opening part (70a) is formed in a casing (70). A compressor (30) and a water heat exchanger (15) are arranged in an internal space (S1) of the casing (70). A fluid pipe (17) is inserted into the opening part (70a) of the casing (70), and connected to the water heat exchanger (15). A supporting part (18) is arranged in the internal space (S1) of the casing (70), and supports the fluid pipe (17).SELECTED DRAWING: Figure 4

A method of barrier testing a subsea system 300 for carbon dioxide injection to a subterrain reservoir 400 with a main injection line 200, the system comprising: a fluid line 330 between a set of two

Leakage sensor (1) for a heat pump (2) for detecting a leak leading to the ingress of gas into a fluid circuit (3) defined at least partially by a fluid line, wherein the leakage sensor (1) has at least one structure-borne sound sensor (12) which is designed to detect structure-borne sound transmitted through the fluid and / or through the fluid line, and includes an evaluation unit (13) which is designed to evaluate the structure-borne sound detected by the structure-borne sound sensor (12) for the detection of a gas penetrating the fluid line through the leakage.

To provide a disclosure capable of transferring following obstacles to an optimum site for maintenance and inspection by an easy Venturi effect [0019], the obstacles being that: mixed gas present when pipeline-pumping a fluid conventionally; and there has been a risk of causing instrument breakage, a flow rate decrease, occasionally a physical injury, therefore, it has been obligated to mount a gas-water separator necessarily in a pipeline-pumping facility [0016]; the gas-water separator has been set physically to a piping uppermost part and has been installed over a center of a river in a case of traversing the river and over a center of a rail track ditch in a place of traversing over a railroad line [0017]; and naturally, a safe path for maintaining and inspecting the gas-water separator is required, and a weight of the path and a painting work of the path have been a burden [0018].SELECTED DRAWING: Figure 1

The invention relates to a device (1) for receiving an expanding volume of a fluid in a pipe, having at least one fluid-pipe portion (2), and having at least one receiving region (7), the fluid-pipe portion (2) and the receiving region being in fluid communication with one another, the receiving region (7) being formed by a spatially delimited chamber, and at least one spatial dimension of the receiving region (7) being variable by moving a boundary.

To provide a flow rate measurement device capable of accurately grasping the flow rate of fluid used for cleaning the interior of a fluid pipe, and improving the management and operation of the fluid use amount.SOLUTION: A flow rate measurement device 1 for measuring the flow rate of fluid discharged from a nozzle 62 (discharge port) of a fire hydrant 60 as a flow channel constitution member, includes at least: a connection part 11 which is connected to the nozzle 62; and an extension pipe part 12 which communicates with the connection part 11 and extends substantially vertically upward. A measurement device 14 as a measurement unit to measure the flow rate of the internal fluid is provided in a specific region E1 of the extension pipe part 12 where the internal fluid forms the steady flow.SELECTED DRAWING: Figure 1

Provided is a proportioner having one or more proportioner inlets to receive a common concentrated proppant fluid comprising a proppant, two or more flow lines fluidly connected to the one or more proportioner inlets, two or more proportioner outlets, each of the two or more proportioner outlets associated with one of the two or more flow lines, one or more fluid inlets, each of the one or more fluid inlets for introducing a proppant-free fluid to the proportioner, and a metering system associated with at least one of the two or more flow lines. Each metering system is positioned upstream of the proportioner outlet of the flow line with which it is associated and is fluidly connected with at least one of the one or more fluid inlets for proportioning one of the proppant-free fluids into the associated flow line at an injection point.

To provide a thermoacoustic device with improved efficiency.SOLUTION: The thermoacoustic device 1a includes a fluid pipe 2 filled with a working fluid and including a pipe body part 21 and a pipe large diameter part 22 having an inside diameter larger than that of the pipe body part 21, a thermoacoustic converting part 3 disposed inside the pipe large diameter part 22, and an orifice part 4 disposed inside the fluid pipe 2. In the thermoacoustic device 4a, the orifice part 4 includes a through-hole 4a through which the working fluid flows, and a small orifice diameter part 4b in which an inside diametrical size of the through-hole 4b is smaller than other parts, and the small orifice diameter part 1a is arranged in a boundary part 23 between the pipe body part 21 and the large pipe diameter part 22.SELECTED DRAWING: Figure 1

The invention discloses a quick-release ring suitable for a wide-temperature-range fluid pipeline. The quick-release ring comprises a rear section, a strap, a screw A, a nut B, a double-end bolt, a clamping ring, a labyrinth sealing structure and a hoop. When fluid with different temperatures circulates in the pipeline front section and the pipeline rear section, the labyrinth sealing structure provides sealing at the position of the outer diameter face of the rear installation edge and the inner diameter face of the front installation edge, the spacing distance between the shaft end faces of the front installation edge and the rear installation edge provides an axial size changing space, and the problem that in the prior art, the axial size changing sealing performance of the pipeline cannot be achieved is solved.

The present invention relates to a compensation element (1, 10-16) for actively damping oscillations of a medium (24), in particular a fluid. The compensation element comprises a hollow body (20) having an internal volume (23), in which a compensation volume (41) is formed, the hollow body (20) further having at least two openings (21, 22) connecting the compensation volume (41) to fluid lines (51, 52) used for the supply and discharge of the medium (24), the compensation element (1, 10-16) being non-destructively removable from the fluid lines (51, 52), and at least one actuator (30) capable of enlarging or reducing the compensation volume (41) during operation.

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.

The application discloses a kind of abrasive water jet tunneling surrounding rock damage real-time imaging method and system, comprising: obtaining the real-time space coordinates of nozzle end in roadway three-dimensional coordinate system, and collecting water pressure data in high-pressure fluid pipeline system;Vibration response signal is collected by acceleration sensor and acoustic emission sensor fixed on nozzle;The vibration response signal is band-pass filtered and denoised and water pressure nonlinear normalization correction;Wavelet packet decomposition is carried out to the corrected signal, and the characteristic vector including signal energy gravity frequency, vibration amplitude root-mean-square value, wavelet packet energy entropy and each frequency band energy proportion is extracted;Mahalanobis distance of characteristic vector is calculated based on reference lithology characteristic library, and surrounding rock damage is judged in combination with high-frequency band energy proportion drop trend, and damage index is calculated;Damage index is associated with space coordinates, and the three-dimensional damage thermodynamic diagram of roadway surrounding rock is generated.The application realizes the real-time perception and imaging of surrounding rock damage under non-contact condition.

To detect water leakage whose location may be discovered with high accuracy.SOLUTION: A computing device comprises: a data acquisition section for acquiring a plurality of items of measured waveform data measured in different time zones by a vibration sensor installed in a fluid pipeline network; a water leakage determination section for calculating a plurality of time-series autocorrelation coefficients from the plurality of items of measured waveform data, calculating a water leakage score representing a relationship between the plurality of time-series autocorrelation coefficients, and executing water leakage determination processing for determining the presence or absence of a water leakage on the basis of the water leakage score; a discoverability determination section for acquiring a vibration intensity equal to or less than a predetermined value for each frequency from the plurality of items of measured waveform data, calculating a feature quantity of the vibration intensity equal to or less than the predetermined value for each frequency, and executing discoverability determination processing for determining discoverability of water leakage on the basis of the feature quantity; and an output section for outputting at least one of a result of the water leakage determination processing and a result of the discoverability determination processing.SELECTED DRAWING: Figure 3

An apparatus for acoustic inspection of a fluid conduit comprises: a robot configured to move through a fluid conduit; a speaker on the robot configured to emit an acoustic excitation signal; an acoustic sensor array on the robot configured to receive reflections of the acoustic excitation signal from the conduit as the robot is moving through the fluid conduit; and a processor, configured to determine the location of an artefact in the fluid conduit from the detected reflections of the emitted acoustic excitation signal. A method comprises: positioning the robot in the conduit, emitting acoustic signals from the speaker, detecting at the sensor array reflections of the signal as the robot is moved through the conduit, and determining the location of an artefact in the conduit from the detected reflections of the emitted acoustic signal.

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 invention relates to the technical field of convective heat transfer coefficient measurement, in particular to a system and a method for measuring a convective heat transfer coefficient in a low-temperature fluid pipe. The system comprises a convective heat transfer coefficient measuring device, the measuring device comprises a first middle pipeline, two first heating electrodes and a plurality of first temperature sensors, and the two first heating electrodes are arranged at the two ends of the first middle pipeline; the plurality of first temperature sensors are used for measuring the wall surface temperature of the first middle pipeline between the two first heating electrodes; based on the mass flow of the low-temperature fluid flowing through the first middle pipeline, the change function of the specific heat of the low-temperature fluid along with the temperature, the length of the first middle pipeline between the two first heating electrodes, the inner diameter of the first middle pipeline, the heating power of the two first heating electrodes and the wall surface temperature measured by the multiple first temperature sensors, the temperature of the low-temperature fluid is measured. And the convective heat transfer coefficient in the low-temperature fluid pipe is determined. According to the scheme, the convective heat transfer coefficient of low-temperature fluid such as liquid hydrogen can be effectively measured.

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

This invention provides a numerical simulation method and system for cavitation turbulence based on gas-liquid slip velocity correction, belonging to the field of cavitation numerical simulation technology. It obtains the gas phase volume fraction distribution and liquid phase velocity field distribution in a fluid pipe, establishes the density gradient field of the gas-liquid interface region, constructs a dynamic characteristic function of the gas-liquid interface including a coupled expression of interface curvature and local vorticity terms, and uses an adaptive gas-liquid slip velocity correction model to correct the relative gas-liquid velocities, solving for the turbulent characteristic parameters and pressure field distribution in the cavitation flow field. This significantly improves the accuracy and refinement of the gas-liquid interface dynamics description, enhances the adaptability of the slip velocity correction model to the nonlinear characteristics of the interface, and helps to more accurately simulate cavitation turbulence behavior, thereby improving the accuracy and reliability of cavitation turbulence numerical simulation and providing more scientific and effective technical support for cavitation prediction and control in complex engineering fields.

A sensing apparatus on a fluid pipe, the sensing apparatus comprising a pipe entry / exit flanged fitting cap with at least one sensor mounted thereto for insertion and removal of the at least one sensor within the fluid pipe.

TITLE: DEVICE FOR STOPPING A LEAK FLOW ON A FLUID PIPELINE The device (30) for stopping excess flow of a leak on a fluid pipeline comprises: - a seal holder comprising a tubular channel, - a lip seal sealed against the fluid circulating in the pipeline, - a shutter (35) facing the upstream end of the tubular channel, - an anchoring means configured to anchor the seal holder in the predetermined pipeline, and - a shutter seat (34) mounted on the seal holder and having lateral openings for the passage of fluid towards the head (351) of the shutter and towards the upstream end of the seal holder.The head of the shutter extends a body (353) movable in a guide (32) comprising the return means (33) and in which, the shutter seat and the guide have, on the outer surface, a flow deflector (323, 342) configured to reduce the drag of the fluid on the head of the shutter, this flow deflector being carried by the shutter guide and by the shutter seat and having a conical shape whose apex is located in the shutter guide. (Figure for the abstract: figure 4).

A water cooling device and its current collector. The water cooling device includes a first current collector, a second current collector, and a plurality of fluid pipes. The first current collector includes a receiving cavity and a plurality of rectifying cavities. The receiving cavity has an inlet for receiving a working fluid. Each rectifying cavity includes a first wall portion and a second wall portion, and the second wall portion is opposite to the first wall portion. The first wall portion has an opening connected to the receiving cavity, and the second wall portion has an outlet. One ends of the fluid pipes are respectively connected to the outlets of the rectifying cavities, and the other ends of the fluid pipes communicate with the second current collector.