46 results about "Fluid pipe" patented technology

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.

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.

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.

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 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.

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 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.

The invention provides a cavitation turbulence numerical simulation method and system based on gas-liquid slippage velocity correction, and relates to the technical field of cavitation numerical simulation. Gas phase volume fraction distribution and liquid phase velocity field distribution in a fluid pipeline are obtained, and a density gradient field of a gas-liquid two-phase interface area is established; and constructing a gas-liquid interface dynamic characteristic function containing coupling expression of an interface curvature item and a local vorticity item, correcting the gas-liquid relative velocity by adopting a self-adaptive gas-liquid slippage velocity correction model, and solving turbulence characteristic parameters and pressure field distribution in the cavitation flow field. Thus, the accuracy and the refinement degree of gas-liquid interface dynamic description can be remarkably improved, the adaptability of a slip velocity correction model to interface nonlinear characteristics is enhanced, cavitation turbulence behaviors can be simulated more accurately, and therefore the accuracy and the reliability of cavitation turbulence numerical simulation are improved; and a more scientific and effective technical support is provided for cavitation prediction and control in the complex engineering field.

The present invention relates to a connection placement device for making a rigid connection with at least one tube in a fluid line. The connection placement device comprises an adapter body and a mating block, the adapter body having at least two outlets and a passage bore forming at least one fluid channel. The mating block has at least one longitudinal channel for receiving the adapter body and a cavity. The adapter body is overmolded onto the mating block such that the adapter body is rigidly held to the mating block. Furthermore, at least one tube is inserted into one of the at least two outlets and rigidly joined to the adapter body.

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

The invention relates to a connection system for connecting at least two cables to or from a floating energy converter device. The system comprising at least two cables, a. lower connection structure and an upper connection structure, at least one longitudinal element joining the lower connection structure and the upper connection structure. The at least two cables run through the lower connection structure and each of the cables are connected to the upper connection structure and each comprises a connectable end at the upper connection structure, wherein the system is non-buoyant, and the at least one longitudinal element is a flexible longitudinal element.

Connector seal pack spacers and assemblies are used for fluid line quick connectors, for example, in automotive applications. The spacers are placed next to the O-rings during installation within the fluid line quick connector. The spacers are designed and configured with angled surfaces that function to maintain the intended position of the O-rings within the fluid line quick connectors upon insertion of the spigot into the fluid line quick connector. Thus, undesired misalignment and dislodgement of the O-rings are minimized, and in some cases eliminated entirely.

The present application belongs to the technical field of flow seismic wave prediction, and particularly relates to a method for predicting macro-micro double-scale flow dispersion and attenuation, which comprises the following steps: S1: geometric model construction: constructing a digital model according to the size of a rock sample; S2: grid division: a. fine grid at positions representing fluid pipelines; b. coarse grid at other positions; S3: control equation: combining the pore elasticity theory of Zimmerman with the equivalent medium model of micro-scale to construct a control equation for describing macro-micro scale flow; S4: boundary condition: the side boundary and the cross-section position except the pipeline of the entire rock sample are free of fluid outflow, and the cross-section of the fluid pipeline at the upper and lower boundaries of the rock has fluid outflow. The present application can overcome the shortcoming that the low-frequency limit of the traditional method BISQ does not satisfy the Gassmann equation, directly couples the micro mechanism in the macro mechanism, and provides a simple method for describing the double-scale flow dispersion mechanism.

The application discloses a novel gas-blocking and liquid-diffusing device, which comprises a fluid pipeline, a reverse conical pipeline is installed through the bottom end of the fluid pipeline, small balls are placed in the reverse conical pipeline, a plurality of intersecting curve grooves are formed on the surface of the small balls, a venturi is installed through the middle of the bottom end of the reverse conical pipeline, and a complete flow channel is formed among the fluid pipeline, the reverse conical pipeline and the venturi. In the application, when gas is introduced into the fluid pipeline, the gas has a great resistance when passing through the curve grooves and the venturi due to the pressure difference and the capillary phenomenon, and the device can prevent the gas from passing through due to the blockage of the small balls; when liquid passes through the fluid pipeline, the liquid has a small resistance when passing through the curve grooves and the venturi, and the surface of the small balls is densely provided with the curve grooves, so that the liquid can flow into the venturi through the curve grooves, and the small balls float up to make the liquid more smoothly flow into an external container or pipeline through the venturi.

The invention relates to a device (1) for regulating the flow in a fluid circuit and distributing a fluid, in particular a refrigerant in a refrigerant circuit. The device (1) has a housing (2) with fluid connections (2a, 2b, 2c) for connection to a fluid line, each of which is connected via at least one through-opening to an internal volume of the housing (2) formed as a valve chamber (3), and a valve element (4) arranged in the valve chamber (3), and having a drive element (5) for moving the valve element (4) relative to the housing (2).

To provide a connection device for connecting a fluid line to a connection boody.SOLUTION: In a connection device 1 for connecting a fluid line 2 to a connection body 4, the connection device 1 incudes a foundation body 3 insertable to a connection opening 5 of the connection body 4 by a connecting portion 21 by means of forcible fitting and / or shape fitting methods, the foundation body 3 includes a through opening 16 for receiving a terminal end portion of the fluid line 2 in a longitudinal direction L, fastening means 7 designed to retain the fluid line 2 in the foundation body 3 is disposed in the through opening 16, first spacer means 9 and first seal means 10 disposed in adjacent to the fastening means 7 in the longitudinal direction L are pressed on the terminal end portion of the fluid line 2, and closing means 8 having an insertion opening 19 for the fluid line 2 is disposed on a closing part 22 of the foundation body 3 facing a direction separating from the connection body 4.SELECTED DRAWING: Figure 1

To provide a flow control method using a flow control device that allows for the attachment and detachment of a control fluid while maintaining an appropriate fluid pressure environment inside the enclosure. [Solution] A flow control device 1A is used to switch a flow path, comprising a housing 3 that is sealed and fitted onto a fluid pipe 2 constituting a flow path, a control fluid 4 that is detachably installed inside the housing 3 and blocks the flow path, and storage sections 50, 90a that can accommodate the control fluid 4 removed from the housing 3. The method involves sealing the housing 3 onto the fluid pipe 2, cutting the fluid pipe 2 inside the housing 3, and installing the control fluid 4 inside the housing 3 to block the flow path, making the primary and secondary sides of the blocked flow path connected by the control fluid 4 to equalize the pressure, making the inside of the housing 3 and the storage sections 50, 90a the same pressure, and then removing the control fluid 4 from the housing 3 to open the flow path.

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.