35 results about "Coupling (piping)" patented technology

The invention relates to a piping test device of seepage corrosion stress coupling, wherein a leakage groove is arranged in the base, a pressure chamber is installed on the upper part of the base and a top cover is installed on the upper part of the pressure chamber; one end of the water outlet tube is connected with the bottom outlet of the base and the other end is extended into a measuring pot; a sample is installed in the pressure chamber on the base; a porous steel plate is installed between the sample and the base; a shrinkable tube is closely wrapped on the outside of the sample and a cover cap is arranged at the top part of the sample; a scree filter layer is filled in the cover cap; one end of the axial pressurizing rod is penetrated through the top cover to contact with the cover cap and the other end is connected with an axial pressurizer; a photoelectric sensor is installed on the body of the water outlet tube; a resistance strain gage is installed on the shrinkable tube. The invention researches a piping development process of the soil body under a complex stress state from the seepage corrosion stress coupling aspect, provides a new aspect for the comprehensive understanding of the soil body piping developmental mechanism and also provides an important theoretical basis and a technical support for the prediction and the effective treatment of the dam piping dangerous case.

Disclosed is a connecting device for piping for connecting a pipe to another pipe or to another part for piping. The connecting device includes an adapter and a pipe nipple configured to be threadedly engaged with the adapter. The pipe nipple is fixed to an end of a pipe, and an end of another pipe is inserted into the adapter. The adapter includes a hollow adapter body, a cap coupled to the adapter body, a grip ring configured to fix the pipe introduced into the adapter body, a body-sealing member configured to provide a seal between the adapter body and the pipe, a sleeve disposed between the grip ring and the body-sealing member, and a metal sealing member configured to provide a seal between the adapter body and the pipe nipple.

The invention relates to a piping test device of seepage corrosion stress coupling, wherein a leakage groove is arranged in the base, a pressure chamber is installed on the upper part of the base and a top cover is installed on the upper part of the pressure chamber; one end of the water outlet tube is connected with the bottom outlet of the base and the other end is extended into a measuring pot; a sample is installed in the pressure chamber on the base; a porous steel plate is installed between the sample and the base; a shrinkable tube is closely wrapped on the outside of the sample and a cover cap is arranged at the top part of the sample; a scree filter layer is filled in the cover cap; one end of the axial pressurizing rod is penetrated through the top cover to contact with the cover cap and the other end is connected with an axial pressurizer; a photoelectric sensor is installed on the body of the water outlet tube; a resistance strain gage is installed on the shrinkable tube. The invention researches a piping development process of the soil body under a complex stress state from the seepage corrosion stress coupling aspect, provides a new aspect for the comprehensive understanding of the soil body piping developmental mechanism and also provides an important theoretical basis and a technical support for the prediction and the effective treatment of the dam piping dangerous case.

A modular, aerogel-based vacuum insulated pipe section comprising an outer conduit; an inner conduit concentrically disposed within the outer conduit with aerogel insulation and a condensable gas being disposed in the insulation space between the concentric conduits. As a stand-alone pipe section, the insulation space is at a pressure within the range of from about 100 microns Hg to about 1000 microns Hg. However, in operation, when a cryogenic fluid is traversing the inner conduit, the condensable gas condenses and the pressure within the insulation space is further reduced to range of from about 1 microns Hg to about 5 microns Hg. The vacuum insulated pipe section further includes a coupling arrangement disposed on a first end of the inner conduit and a second end of the inner conduit, the coupling arrangement configured to engage or mate with a corresponding end of another modular vacuum insulated pipe section.

There is disclosed an equal strength hose connector clip and its manufacture method. The clip includes a clip body and ear-seats at both ends of the clip body. The manufacture method includes the following steps of setting the thickness of the clip in equal strength proportions; rolling the steel band blanks; cutting out the steel band blank of the corresponding length; milling the blank into the ring body using the roller mould under the condition of normal temperature and then being separated into half-round clip bodies to be made the inventive clip after welding the ear-seats.

An apparatus and system for in-situ electropolishing and / or for in-situ electroforming a structural or functional reinforcement layer such as a sleeve of a selected metallic material on the internal surfaces of metallic tubular conduits are described. The apparatus and system can be employed on straight tubes, tube joints to different diameter tubes or face plates, tube elbows and other complex shapes encountered in piping systems. The apparatus includes components which can be independently manipulated and assembled on or near a degraded site and, after secured in place, form an electrolytic cell within the workpiece. The apparatus contains counter-electrodes which can be moved relative to the workpiece surface during the electroplating and / or electropolishing operation to provide flexibility in selecting and employing electropolishing process parameters and electroplating process parameters to design and optimize the surface roughness as well as the size, shape and properties of the electrodeposited reinforcing layer(s).

A thermally conductive cover improves workability of attachment and detachment. The thermally conductive cover includes a first thermal conductor on which a coupling hole is formed and a second thermal conductor on which a coupling hole is formed. The thermally conductive cover further includes a coupling member having a first inserted part to be inserted into the coupling hole and a second inserted part to be inserted into the coupling hole. At least one of the inserted parts is elastically deformable in a direction perpendicular to an inserting direction of the coupling member.

A piping joint connects a resin tube to a connection pipe having a protrusion formed on an outer peripheral surface of a distal end portion of the connection pipe. The piping joint includes a housing press-fitted into the resin tube and an elastically extendable and contractible seal member into which the connection pipe is inserted such that sealing is performed between the connection pipe and the seal member. The housing has a first housing portion positioned in one end portion and having an outer peripheral surface side press-fitted into the resin tube and a second housing portion positioned in the other end portion. The seal member has a first seal portion inserted on an inner peripheral surface side of the second housing portion.

There is provided a pipe part joint structure, including: a first member formed with a first hole; a second member including a pipe part coupled to the first member by being inserted into the first hole; and a third member coupled through the joint part on the second component. The second member has an inclined surface formed at a front end portion of the piping portion. When the inclined surface is pressed by the first member when the piping portion of the second member is inserted into the first hole of the first member in a state where the second member and the third member are coupled, the joint portion , a force is applied from the second member in a direction opposite to the direction in which the second member separates from the third member.

A kit for fusing piping includes a plurality of couplings, each coupling having a susceptor layer concentric with a weld zone. A control unit provides a current to a wand with a handle for gripping by a user. The handle has opposing jaws mounted on the distal end, each jaw including an arcuate conductor such that the arcuate conductors form a circular inner diameter when the jaws make contact. A lever system couples to the distal end for opening and closing the jaws. The lever system includes a spring for selectively biasing the lever system in a latched position with jaws closed and an open position with the jaws open. Each coupling is sized such that the jaws will only close about the weld zone. The arcuate conductors create a fuse zone about the susceptor layer and the spring is outside the fuse zone.

The present invention relates to a cleaning tool, a cleaning method, and a liquid supply device for better cleaning a coupling with a cleaning liquid in a short time. The piping of the cover part, by inserting the piping into the interior of the liquid storage body, the liquid stored in the interior can be taken out through the piping, and the cleaning tool has: a container with an opening into which the piping can be inserted; An internal space for accommodating the piping via the opening, and a holding portion installed near the opening of the container for holding the coupler detached from the liquid storage body; The space communicates with the interior of the piping to clean the piping, and the interstitial space is formed between the inner surface of the container and the outer surface of the piping in which the piping is housed in the internal space. Space.

The invention discloses a device for avoiding acoustic resonance of a piping system, which includes a vibration sensor, acquisition and processing control equipment, and heating equipment. The vibration sensor is fixedly installed on the surface of the main pipeline, the heating equipment is installed on the branch pipeline, and the vibration sensor The sensor is electrically connected to the collection and processing control equipment, and the collection and processing control equipment is electrically connected to the heating equipment. In the present invention, by configuring the vibration sensor on the main pipeline, the vibration sensor monitors the vibration signal of the amplified vibration after the fluid passes through the tee of the main pipeline due to the coupling of the vortex shedding frequency and the acoustic frequency of the branch pipe, and controls the change of the fluid temperature of the branch pipe through the heat removal equipment Acoustic frequency, so as to avoid the occurrence of acoustic resonance; starting from the mechanism of acoustic resonance coupling, the device adopts changing temperature to decouple the frequency of vortex shedding in the main pipeline from the acoustic frequency of the branch pipe, eliminating the excessive stress or fatigue of the pipeline caused by acoustic resonance, and improving the safety of the piping system.

The invention discloses a catheter welding shrinkage control device, which belongs to the technical field of precision manufacturing of aviation welding catheters. It includes a digital control device and a pipe marking device. The digital control device includes a casing positioner, a pipe support and a digital measuring device. A connection plate is provided at one end of the casing positioner. The joints are coaxially connected, and the pipe support is used to support the casing positioner; the digital measuring device is rotatably connected to the casing positioner, and rotating the digital measuring device can drive the casing positioner to slide in the pipe support; The scriber is fixed on the connection plate, and is used to draw a circle of welding seam line at the junction of the conduit and the pipe joint. In the present invention, the digital control device and the pipe marking device are used in conjunction with each other, the welding shrinkage variable is obtained by the digital control device, and transmitted to the pipe marking device, and the position of the weld seam before welding is obtained by the pipe marking device, so that there is no gap Welding requires technical support.

A non-welded type branch piping reinforcement apparatus capable of preventing damage to a branch pipe system by increasing the strength of the branch pipe system by covering and protecting the branch pipe system connected to a header pipe, by a joint clamp, a connection pipe clamp, and a valve clamp includes: a joint clamp arranged to cover the branch pipe joint and the connection pipe and having an arc-shaped cross section; a connection pipe clamp arranged to cover the connection pipe and having an arc-shaped cross section; and a valve clamp arranged to cover the connection pipe and the valve and having an arc-shaped cross section, wherein one end of the connection pipe clamp is connected to the joint clamp and the other end of the connection pipe clamp is connected to the valve clamp.

The invention discloses a pipeline development prediction and early warning method based on dynamic tomographic scanning, comprising the following steps: interpreting the progressive erosion mechanism of aquifers and the dynamic response law of seepage field; establishing a fluid-solid coupling model of progressive erosion of aquifers; arranging monitoring wells to collect data Monitoring data; establishing a multi-source monitoring data interpretation model for progressive erosion of aquifers; calculating the current seepage field; calculating the erosion situation with the piping fluid-solid coupling model; updating the seepage field and iteratively calculated to the step size requirement. The method of the invention combines the characteristics of the piping fluid-solid coupling model and the advantages of the hydraulic tomography scanning to characterize the heterogeneous aquifer, and predicts the dynamic development of the piping channel. Real-time feedback and precise positioning have been greatly improved.