213 results about "Hot stick" patented technology

Method and apparatus for protecting wildlife from contact with an energized fuse assembly known as a “cutout”, also known as a “disconnect”. The cutout is shrouded from above and three sides. One side is left open to facilitate installation or removal of a fuse holder assembly. The shroud is formed to allow the use of a hot-stick for installation and removal of a fuse holder assembly into a fuse receptacle formed by upper and lower contact assemblies held in opposition to each other by an insulator. The shroud provides a slot enabling installation when a wire is connected to the upper contact assembly. A pin is used to hold the shrouding in place.

The present invention relates to a phase change thermal storage tester, and consists of a water bath, a voltage stabilizer, a solid state relay, a power converter, a temperature detector, a data acquisition instrument and a computer. The water bath consists of an internal heating barrel, an electric heating rod and an external insulating barrel. One end of the voltage stabilizer is connected with a power supply, and the other end is connected with the electric heating rod and used for providing electricity for the electric heating rod. The solid state relay, the data acquisition instrument and the computer together form the monitoring and controlling part of the whole testing process. The data collected by the data acquisition instrument is used for judging whether the heating needs stopping or starting. The computer transmits commands to connect or disconnect the solid state relay. Aiming at the defect in the existing experimental method of researching or testing phase change materials for construction, the device can heat the water bath with the phase change materials for construction, measure the temperature by the temperature sensor, map the real-time temperature curve, control the starting and stopping of the heating device, and calculate the stored heat of the phase change materials for construction according to the test data.

Disclosed are a method and a device for measuring contact heat transfer coefficient on the solid interface. The method comprises connecting heating bar 12, the first sample 13, thin slice 14, the second sample 15, cold-trim bar 9, centring steel ball 16, pressure device 3 in sequence; adding corresponding thin slice 14 between the contacting surface of the two samples; increasing the number of contacting surface and enlarging temperature difference of the contacting surface; connecting the input terminals of thermal couple 4 and temperature control meter 5, and parallel the output terminal of the temperature control meter 5 with the industrial control machine 7 via the RS232 converter; heating the heating bar 12 with the heating stove 11, adding an asbestos heat insulating layer 10 around the sample to insulate heat; the industrial control machine 7 collecting temperature signal via the temperature control meter 5, displaying and analyzing.

The invention discloses a method for testing heat storage performance of a building material and a tester. The tester mainly comprises a heat insulation barrel, an environment chamber, a D / C converter, an A / D converter, temperature sensors, an electric quantity sensor and a computer. The temperature sensors are arranged in the heat insulation barrel and the environment chamber respectively for measuring the temperatures of the material, the environment chamber and the inner and outer walls of the heat insulation barrel; the computer controls the heating power of a heating rod through the electric quantity sensor and the D / C converter; and temperature signals are monitored and recorded by the computer through the temperature sensors and the A / D converter. A computer program can calculate the heat storage performance of the material through a temperature curve of heating and heat release processes. Aiming at the condition that the conventional method for testing the heat storage performance of the material in the search of the building material, particularly a building phase change material, is insufficient, the method of the invention simply and quickly tests the heat storage performance of the material during change at a certain temperature interval, has the characteristics of high detection precision, strong reliability, low cost and the like, and can realize automation of the test process at the same time.

The invention relates to a testing device and method for hydrogen constant-volume compression ignition, belonging to the technical field of combustion of internal combustion engines. The device comprises a body, transverse clapboards, groove tents, visible view windows and heating sticks, wherein the two visible view windows are packaged at the two ends of the body respectively and are fixed together through a fastening bolt; a plurality of the heating sticks are arranged in heating stick installation through holes of the body; during research of the compression ignition characteristic of hydrogen, the transverse clapboards are arranged in a first groove or a second groove of the body or in the two grooves simultaneously; and during research of the spreading process of hydrogen and oxygen flames close to a near wall face, the groove tents are arranged in the first groove and the second groove. The testing method comprises a volume bullet heating method, a transverse clapboard fire retardance ventilation method and a combustion waste gas exhausting method. Due to the adoption of the device and the method, the volume bullet heating is quick, the heating efficiency is high, the temperature rise is high, the heating performance is reliable, the appearance of a system is not influenced, internal hot points are avoided, and the sealing performance is high.

Heat transfer test assemblies for monitoring and recording fouling of aqueous systems are disclosed. The heat transfer test assemblies include an outer tube member, a heating rod positioned within the outer tube member, a ribbed tube sleeve fitted over the heating rod and thermocouples for sensing the wall temperature of heating rod. The disclosed heat transfer test assemblies enable improved monitoring of systems employing enhanced heat exchanger tubes. Monitoring and recording apparatuses including the heat transfer test assemblies are also disclosed.

An apparatus for measuring phase angle difference between two conductors uses a hot stick, a field unit, and reference unit. Voltage is sensed at a conductor, and the voltage is passed through an automatic gain control which adjusts the voltage input to a voltage detector to a level which prevents saturation of the voltage detector. Non-saturation of the voltage detector enables detection of all of the data in a detected sine wave. Pulse width modulation and pulse width modulation RF transmission are used to provide for data transmission from a hot stick to a field unit.

A remote control tool assembly for use in live line environments having an insulated pole (often termed a “hot stick”) with a tool at one end that generally includes a power supply so that the tool is fully isolatable at the end of the insulated pole. At the other end, a tool control transmitter is positioned which is configured to communicate wirelessly with the tool. Thus, the user can operate the tool remotely from the tool controller, which is particularly useful in a live line environment. A tool body assembly and a tool having a tool body assembly is disclosed.

A connector assembly for joining bare or insulated conductors includes a first member and a second member which cooperate to act as clamps. The first member has two beams connected by a body and tabs extending from the center of the body substantially parallel to the two beams. The distal end of the beams each have a receptacle for receiving a conductor. The cross-section of the first member may be Sigma- or E-shaped. The second member has two contact planes, each facing a receptacle, and has a body facing surface that complements the shape of the inner surface of the body that it engages, including a groove for receiving the tabs. The second member is guided by the tabs of the first member when moved by operation of a fastener from an unloaded position, where the second member engages the body, to a loaded position in which the second member is pushed away from the body and holds the conductors securely in place in the receptacles. This connector assembly is adaptable for hot stick applications.

The invention relates to a method of reducing the concrete hydration heat of a cast-in-place pile in a permafrost region. The method comprises the following steps of (1) constructing in the permafrost region, and digging a foundation pit for the cast-in-place pile according to a design requirement; (2) computing the hydration heat release of concrete needed by the cast-in-place pile according to a routine method, and computing the various needed parameters of a hot stick according to the routine method; (3) binding a reinforcement cage according to the design requirement, and fixedly arranging a sleeve at a required design position in the reinforcement cage after the binding is completed; (4) arranging the hot stick in the sleeve, and hoisting the reinforcement cage into the foundation pit for the cast-in-place pile after fixed arranging of the hot stick is completed according to a confirmed hot stick embedding length; (5) preparing and stirring the concrete which is mixed with an anti-freezing agent according to design grade requirements, pouring the concrete in the foundation pit for the cast-in-place pile, immediately covering with a thin film after the pouring is completed, and then covering with a straw curtain or heat preservation materials for heat preservation; (6) pulling out the hot stick and carrying out follow-up construction according to the routine method. According to the method of reducing the concrete hydration heat of the cast-in-place pile in the permafrost region, disclosed by the invention, the refreezing time of frozen soil can be reduced, and the construction is simple and convenient.

The invention provides a device and method for a high temperature melt growth choking experiment. The device comprises a heating oven which comprises an oven body made of zirconia with a cylindrical structure. A ring of a high temperature heat insulation layer is placed in the oven body around the inner wall. The side wall of the oven body is provided with several transparent windows in which thermal couples are installed. Several test bars are placed vertically at the center of the oven body. Each test bar comprises a tungsten rhenium heating bar located in the center. The outer side of the tungsten rhenium heating bar is an alumina layer. The outer side of the alumina layer is a zirconium 4 alloy layer. A transformer is mounted below the heating oven, and is connected with the tungsten rhenium heating bars. Through the implementation of electrical heating to the tungsten rhenium heating bars, the fuel rod decay heat can be simulated. The maximum heating temperature during experiment can reach 2000 DEG C, therefore, the faithful simulation of the melting of core material and the migration and choking characteristics of the high temperature melts of over 2000 DEG C are achieved. The arrangement of several visualization transparent windows at the side of the oven body can dynamically expound the behavioral mechanism of the melting of core material and the migration of melt.

A remote control tool assembly for use in live line environments having an insulated pole (often termed a “hot stick”) with a tool at one end that generally includes a power supply so that the tool is fully isolatable at the end of the insulated pole. At the other end, a tool control transmitter is positioned which is configured to communicate wirelessly with the tool. Thus, the user can operate the tool remotely from the tool controller, which is particularly useful in a live line environment.

Cable clamps configured to be installed from the ground with an extendable reach tool, such as a hot stick, are provided. Initial spring tension temporarily holds a drop cable in a drop cable section of the clamp, and a main span cable can be guided into a main span section of the clamp and tightened.

A hot stick power analyzer includes a housing mounted on a pole and a channel for a power line. A ground line extends from the housing and there is a power line conductive contact. A voltage sensor includes voltage sensing circuitry connected to the power line conductive contact and the ground line. There is a high voltage capacitance between the ground line and the voltage sensing circuitry. A current sensor includes windings about and spaced from the power line. A processing subsystem is responsive to the voltage sensing circuitry and to the current sensor and is configured to compute power analysis metrics.

The invention discloses an electrical heating rod device, and relates to the technical field of reactor thermohydraulics experiments and reactor in-pile electric auxiliary heating. The electrical heating rod device comprises one electrical heating rod or a plurality of electrical heating rods arranged in parallel. Each electrical heating rod comprises a plurality of sections of heating tubes, a plurality of intermediate transition connectors and two end connectors, wherein the plurality of section of hating tubes are used for transforming electric currents passing through the heating tubes into heat energy, the plurality of intermediate transition connector are connected between two adjacent sections of heating tubes and used for achieving the electrical connection of two adjacent sections of heating tubes, and the two end connectors are respectively arranged at one ends of two sections of heating tubes arranged at two ends, and used for guiding electrical currents into the heating tubes. The electrical heating rod device adapts to the requirements of the external diameters, the length, the pitches and the like of various heating rods, and is high in heat flow density, simple in structure, reliable and low in cost.

The invention relates to a hot-pressing sizing device. The hot-pressing sizing device comprises a base, a first heat insulation piece, a second heat insulation piece, a heating lower die, a cooling lower die, a pressing base, a third heat insulation piece, a fourth heat insulation piece, a heating upper die, a cooling upper die, a plurality of guiding columns and buffer springs, wherein the heating lower die and the cooling lower die are arranged in the first heat insulation piece and the second heat insulation piece in an inlaid mode respectively; the heating upper die is arranged in the third heat insulation piece in an inlaid mode; the cooling upper die is arranged in the fourth heat insulation piece in an inlaid mode; the multiple guiding columns are fixed to the pressing base and sleeved with the buffer springs. Heating rods are arranged in the heating lower die and / or the heating upper die. The cooling lower die and / or the cooling upper die are provided with water inlets, water outlets and pipelines which are communicated with the water inlets and the water outlets. A cell phone middle frame is clamped between the heating lower die and the heating upper die, the cell phone middle frame is deformed at a preset high temperature through the heating rods, and the flatness is restored. Then the cell phone middle frame which is affected at the preset high temperature is taken out and clamped between the cooling lower die and the cooling upper die, and the cell phone middle frame can be cooled and sized rapidly by pouring circulating water flow. According to the hot-pressing sizing device, the sizing effect is good, and the production cost is reduced.

The invention discloses a thermohydrocoupling migration model testing device, which comprises the following parts: heating rod, soil sample box, thermostatic circulating tank, porous permeable board, martensitic bottle, thermometric probe, water testing probe, foam plastic board, wherein the porous permeable board is set on the bottom of the soil sample box, which is welded with four walls of soil sample box; the valve and vent valve are set on two sides opposite to the lower face of porous permeable board and soil sample box; the valve connects martensitic bottle through pipe; the temperature-testing element is set in the inner wall of the heating rod; a steel baffle is set at two sides of the front and back of soil sample box separately; the bottom, left and right sides of steel baffle is welded with inner sides of soil sample box and lateral board; the foam plastic board is cushioned on the inner side of steel baffle. The invention has reasonable structure, simple and convenient operation, which realizes heat and wet transmission of soil.

The invention relates to a soft measurement method based on variable-boundary segmentation energy balance, a multifunctional wet steam measuring needle and a wet steam heat absorption measurement and control device. The multifunctional wet steam measuring needle is characterized by consisting of an electric heating rod, an electric heating rod sleeve with uniform and screw pitch-equal convex spiral ribs, a multifunctional wet steam measuring needle outer wall tube, a front sensor seat and a rear sensor seat. The wet steam heat absorption measurement and control device consists of an isothermal sleeve, temperature measuring points distributed on the inner wall and the outer wall of the isothermal sleeve at equal distances and computer online measurement and control equipment. The multifunctional wet steam measuring needle is put in the wet steam heat absorption measurement and control device and is wholly pressed and fixed by an outer sleeve, an outer sleeve flange cover and an outer sleeve flange disc; based on the flowing and heating process mechanism analysis of wet steam in the structure, a soft measurement model and an online calibration model of measurement results are established; and the whole equipment is simple in structure and is suitable for various measurement fields in relation to wet steam two-phase flow, in particular to the measurement of exhaust steam humidity of a condensing turbine.

A cutout cover includes an arcuate top portion covering an insulator having a closed top and an open bottom with a slit extending therebetween. A midsection can connect the top portion to an open end adapted to access the cutout. The top portion is bell-shaped with an upper and lower dome, two opposing sides, and a slit between the sides. A fastener mechanism is attached to the two opposing sides with an aperture disposed on each of the sides for receiving a fastener.

A remote adapter for use with a lineman's hot stick that enables the lineman to mount a wide variety of power tools onto the far end of the hot stick for tasks involving high voltage equipment. The remote adapter allows the power tool to be actuated by pulling on an insulating pull-rope. The remote adapter includes a body for supporting the power tool, the body including: at least one slot for receiving at least one strap configured to strap the power tool to the body, at least one pivot hole for receiving a pivot pin, and a splined universal connector for attachment to a hot stick. The remote adapter also includes a lever arm that is pivotable with respect to the body. The lever arm includes a hole for receiving a trigger pin which actuates the power tool trigger when the insulating rope attached to an attachment feature is pulled.

Cable clamps configured to be installed from the ground with an extendable reach tool, such as a hot stick, are provided. Initial spring tension temporarily holds a drop cable in a drop cable section of the clamp, and a main span cable can be guided into a main span section of the clamp and tightened.

A hot stick switch head for a lineman's tool for safely and expeditiously removing and installing fuseholders having a tubular body and a mounting assembly from an overhead mounting comprising a base member having a downwardly depending attachment device for attachment to the end of a hot stick and an elevated slot member on the opposite end thereof for receiving an element of said mounting assembly, and a fusebody-receiving notch. A laterally projecting arm engages a fusebody anywhere along the length thereof an guides the fusebody into the fusebody-receiving notch in the base member. The notch and slot are shaped and juxtaposed relative to each other so that on vertical elevation of the lineman's tool, the fusebody is securely retained thereon while the fusebody is lifted out of the fusebody mounting.

The invention discloses a permafrost region buried pipeline thaw collapse control method and device with combination of hot sticks and coarse-grained soil and relates to the technical field of pipeline systems. The permafrost region buried pipeline thaw collapse control method is characterized in that silty clay with strong thaw collapse property around a buried pipeline (1) is replaced by the coarse-grained soil with weak thaw collapse frost heaving property, namely, a layer of pebbles (4) without sharp corner angles are paved on the bottom layer, and sand (3) in an inverted trapezoidal shape or sand bags filled with the sand (3) is or are paved above the pebbles (4) and around the buried pipeline (1). After filling replacement is completed, the hot sticks (5) are arranged on the two sides of the buried pipeline (1) vertically. The permafrost region buried pipeline thaw collapse control device is free of movement parts and maintenance and good in reliability, and does not consume electricity.

The invention relates to a device and method capable of simultaneously measuring multiple thermoelectric parameters of a material. The device comprises electrodes, a heating power source and a data acquisition device, wherein the electrodes comprise an upper end electrode, a middle electrode and a lower end electrode, thermocouples for measuring the temperatures of the corresponding electrodes arearranged in the upper end electrode, the middle electrode and the lower end electrode; a heating rod is further arranged in the middle electrode, the heating power source is electrically connected with the heating rod, the thermocouples in the upper end electrode, the middle electrode and the lower end electrode are all electrically connected with the data acquisition device, the upper end electrode and the middle electrode are used for clamping a to-be-detected sample at the upper end, and the lower end electrode and the middle electrode are used for clamping a to-be-detected sample at the lower end. According to the invention, the Seebeck coefficient, the resistivity and the thermal conductivity of the material can be measured at the same time, the performance consistency of all performance parameters of the to-be-measured sample is ensured, the contrastive analysis of data is facilitated, the integration level of the system is high, the test time is short, the efficiency is high, and the investment cost is reduced at the same time.

A hot stick switch head is described and shown in the specification and drawings having a body, a jaw assembly attached to the top end of the body, and a base attached to the bottom end of the body. The base is adapted to be attached to an insulated pole or “hot stick.” The body has a channel extending longitudinally along at least a portion of the body. The jaw assembly has an open position and a closed position for securing high-voltage fuses, fuse barrel assemblies, or other similar or related devices during removal and installation.

The invention discloses a precision forging process for a fan-shaped forged piece. The fan-shaped forged piece is a fan-shaped worm gear which is one of parts in a high-voltage switch operating mechanism. The precision forging process comprises a step of preparing a bar stock; a step of heating the bar stock to 760 to 900 DEG C; a step of placing the bar stock into a pre-forming die, and forming pre-formed blank; a step of heating the pre-formed blank to 760 to 900 DEG C; and a step of placing the pre-formed blank into a final forming die, and forming a finally formed blank fan-shaped worm gear with an outer-circle flange and a center hole. The invention also discloses a large-angle fan-shaped worm gear and a small-angle fan-shaped worm gear, which are forged by the process, wherein the large-angle fan-shaped worm gear has a sector angle of 135 degrees, and the small-angle fan-shaped worm gear has a sector angle of 120 degrees. The fan-shaped worm gear is manufactured according to an actual operation fixing working angle of the worm gear, so that the material consumption of the precision forging process is remarkably reduced compared with that of the conventional integral round worm gear; and a product forged by the process is high in material density, neat and attractive in appearance, free of burr and flashing, low in machining allowance, material-saving and favorable for machining.

The invention discloses an energy-saving tempering furnace. The furnace comprises a casing, the top portions of left and right sides of an inner wall of the casing are fixedly connected with first heating rod bodies, the bottom of the inner wall of the casing is fixedly connected with a second heating rod body, and a stabilizer plate is fixedly connected to the inner wall of the casing and above the second heating rod body. Through the mutual cooperation of a rotating electric machine, a rotating shaft, a driving gear, a first rolling bearing, a forward rotating threaded rod, a second rollingbearing, a reverse threaded rod, a driven gear, a thread block, a movable block, a sliding groove, a sliding block, a sliding rod, a sliding plate, a counterweight, a pulley, a through groove, a steelwire rope, a stable motor, a stable rotating shaft, a fixed sleeve and fan blades, the furnace achieves the effect of high heating efficiency, solves the problem of low heating efficiency of the energy-saving tempering furnace, makes air circulate inside a tempering furnace body, greatly improves the work efficiency, reduces the time and effort of workers, and brings great convenience to a user.

The invention discloses a living body sampling device for the digestive system department. The device comprises a cannula, an instrument bin and a handle, the side wall of the cannula is of a sandwichstructure, the interlayer structure of the side wall of the cannula is filled with heat-conducting silica gel, the instrument bin is fixedly mounted at one end of the cannula, a liquid storage box isfixedly mounted in the instrument bin, heat insulation blocks are symmetrically arranged in the instrument bin, a heating rod is fixedly installed between the two heat insulation blocks, a heat conduction ring is arranged on the heating rod, a heat conduction wire is connected to the heat conduction ring, a liquid guide pipe is arranged in the cannula, a suction pump is arranged on the liquid guide pipe, a fixed block is fixedly installed in the cannula, a telescopic rod is fixedly installed on the fixed block, and a sampling needle is fixedly connected to one end, away from the fixed block,of the telescopic rod, the handle is fixedly installed at the end, away from the cannula, of the instrument bin, and the handle is provided with a control button used for controlling the device. The device is adjustable in temperature, more comfortable for a patient to use, and capable of effectively removing hydrops in human tissues, facilitates more accurate observation and sampling for medicalpersonnel, and is simple in structure, convenient and practical.