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256 results about "Insulated pipe" patented technology

Insulated pipes (called also preinsulated pipes or bonded pipe ) are widely used for district heating and hot water supply in Europe. They consist of a steel pipe, an insulating layer, and an outer casing. The main purpose of such pipes is to maintain the temperature of the fluid in the pipes. A common application is the hot water from district heating plants. Most commonly used are single insulated pipes, but more recently in Europe it is becoming popular to use two pipes insulated within the same casing. By using insulated pipe supports, direct heat transfer between pipes and their supports are prevented.

Thermal insulation pipe bracket overall strength displacement overload testing device and method

The invention relates to the technical field of pipe bracket testing, in particular to a thermal insulation pipe bracket overall strength displacement overload testing device and method.The thermal insulation pipe bracket overall strength displacement overload testing device comprises a bearing base and further comprises a pipe bracket base arranged on the upper side of the bearing base, a connecting pipe bracket is installed at the upper end of the pipe bracket base, a clamping plate is clamped to the upper side of the bearing base, and a rotating shaft is arranged on the clamping plate in a penetrating mode; the bottom end of the rotating shaft is clamped and connected with a connecting gear, and an annular groove is formed in the edge of the upper side of the bearing base. According to the invention, the axial and radial strength of the pipe bracket can be tested in the displacement overload test process, the use limitation is low, the automation degree is high, the test efficiency of the heat insulation pipe bracket is obviously improved, the situation that the pipe bracket is broken to injure people due to broken objects in the displacement overload test process of the pipe bracket can be avoided, and the test efficiency is improved. The displacement overload test structure has a good safety protection function, is high in use safety, and also realizes a step-by-step disassembly function of the displacement overload test structure, so that barrier-free maintenance of the test structure is facilitated.
Owner:JIANGSU TENGSHENG PIPELINE EQUIP CO LTD

Electric heating fusion welding machine for thermal insulation pipeline joint

The invention relates to the technical field of thermal insulation pipe hot melting welding, and particularly provides an electric hot melting welding machine for a thermal insulation pipeline joint. Comprising a hot melting welding machine and a welding auxiliary frame matched with the hot melting welding machine. Two circular rail frames; the two rotating rings are coaxially and rotatably mounted on the two circular rail frames in a one-to-one correspondence manner; the compression roller mechanism comprises four driving assemblies; a plurality of compression roller pieces are horizontally and rotationally mounted between the two driving assemblies at opposite positions on the two rotating rings; the two fastening mechanisms are assembled on the two circular rail frames in a one-to-one correspondence manner; the two groups of hot-air blowers are assembled on the two rotating rings in a one-to-one correspondence manner; the welding auxiliary frame matched with the hot melting welding machine is provided, the welding auxiliary frame has high integration, various operations before and after hot melting welding of the outer protective layer of the heat preservation pipe are met, operation is convenient and fast, standardization and normalization of welding operation of the heat preservation pipe can be improved, and the quality uniformity is improved while the welding forming quality is guaranteed.
Owner:TIANJIN JINENG PIPE

Steel-sleeved-steel heat preservation directly-buried pipe

The utility model relates to the technical field of heat preservation directly-buried pipes, and discloses a steel-in-steel heat preservation directly-buried pipe which comprises a pipe body, and a plurality of sets of sliding grooves are formed in the pipe body. The lead screw is arranged in the middle of the pipe body, and the lead screw is fixedly connected with the pipe body; the cleaning assembly is arranged between the pipe body and the screw rod, the cleaning assembly is used for cleaning the inner wall of the pipe body, the cleaning assembly comprises a cleaning plate and a transmission block, the cleaning plate abuts against the inner wall of the pipe body, the cleaning plate is in threaded connection with the screw rod, the transmission block is arranged in the pipe body, and the transmission block is in transmission connection with the screw rod; the cleaning plate is elastically connected with the transmission block, the telescopic motor drives the sliding sleeve to rotate, the sliding sleeve slides on the lead screw through threaded transmission, the transmission block pushes the cleaning plate to slide, the cleaning plate is in threaded transmission with the lead screw when sliding, the cleaning plate rotates on the lead screw when sliding, and the cleaning plate rotates while sliding and rubs with the inner wall of the pipe body. Impurities, incrustation and the like on the inner wall of the pipe body are removed through friction between the cleaning plate and the inner wall of the pipe body.
Owner:CHANGCHUN JIAYE INSULATION MATERIALS CO LTD

Vacuum heat insulation pipe regulation and control method based on self-adaptive heat flow prediction algorithm

The invention relates to the technical field of vacuum heat insulation pipes, in particular to a vacuum heat insulation pipe regulation and control method based on a self-adaptive heat flow prediction algorithm, and the method comprises the steps: S1, collecting the temperature, vacuum degree, flow and other synchronous data of a partition; s2, calculating physical quantities such as partition heat flux density; s3, constructing feature vectors and recursively updating parameters; s4, establishing a heat flow prediction model and a vacuum conduction prediction model; s5, performing joint normalization on the thermal mode residual error and the vacuum mode residual error; s6, a target partition is determined through sparse inversion, and a partition regulation and control instruction is generated; s7, cooperatively setting air exhaust, air supply, bypass and heating under the constraint; and S8, recursive least square is matched with a forgetting factor to update model parameters online. According to the method, real-time positioning is achieved under the condition that conveying is not stopped, partition abnormity is restrained, and the vacuum degree of the partition interlayer cavity and the temperature of the outer wall of the inner pipe are stably maintained in a preset working condition window.
Owner:PANJIN LIAOHE OIL FIELD JINHUAN IND CO LTD

High-temperature-resistant Raman probe

The high-temperature-resistant Raman probe comprises a shell, an optical assembly, an air chamber and a heat insulation pipe, the optical assembly comprises a signal transmitter, a signal receiver and a diaphragm, and the signal transmitter and the signal receiver are arranged in the shell; the gas chamber is arranged on one side of the shell and is provided with a cavity for introducing gas to be detected, and the cavity extends in the first direction; the heat insulation pipe is detachably installed between the shell and the air chamber, one end of the heat insulation pipe is fixed to the air chamber, right faces the window piece and is made of reinforced composite materials, and the window piece is detachably arranged at the end, close to the heat insulation pipe, of the cavity or the end, close to the cavity, of the heat insulation pipe. In this way, when high-temperature gas is detected, heat insulation is achieved through the heat insulation pipe, and the optical element is prevented from being heated and damaged; meanwhile, the heat insulation pipe and the air chamber can be quickly disassembled, pollutants attached to the surface of the window piece are wiped, the detection accuracy is guaranteed, and the heat insulation pipe is convenient to replace when damaged.
Owner:WUHAN CUBIC OPTOELECTRONICS CO LTD

Plastic sleeve steel thermal insulation pipe production management method and system

The invention relates to the technical field of intelligent manufacturing, in particular to a plastic sleeve steel thermal insulation pipe production management method and system, and the method comprises the following steps: extracting thermal insulation pipe multi-parameter evaluation sensitivity, dynamically adjusting material injection parameters, monitoring molding data, identifying molding abnormity, outputting a control instruction, recording execution deviation, optimizing a configuration table, and generating a management record. According to the method, the thermal insulation pipe wall thickness fluctuation, the bubble body structure size and the center offset data are extracted, the response degree of each specification to the material injection parameter change is determined, the sensitive level configuration is established, the parameter adjustment precision is improved, the real-time data are collected, the change trend is calculated in combination with the target value, and the forming state is dynamically mastered; abnormal paragraphs are recognized based on time sequences and trend clustering, accurate recognition under multi-source interference is achieved, an adjustment instruction is generated in combination with deviation direction and frequency information, the material injection rhythm matching performance is improved, a dynamic regulation and control mechanism based on trend calculation and mode recognition is integrally formed, and the forming consistency and the abnormity coping efficiency are effectively enhanced.
Owner:SHANDONG JUNENG PIPE IND CO LTD

Biomass horizontal carbonization furnace waste heat recovery device and method thereof

The invention discloses a biomass horizontal carbonization furnace waste heat recovery device and method, and relates to the technical field of carbonization furnaces, the biomass horizontal carbonization furnace waste heat recovery device comprises a horizontal carbonization furnace and a cooling bin, a heat insulation pipeline is fixedly installed on the surface of the horizontal carbonization furnace, a material conveying bin is fixedly installed at the other end of the heat insulation pipeline, and a feeding hopper is fixedly installed at the top of the material conveying bin; a spiral blade rotatably penetrates through one surface, far away from the heat insulation pipeline, of the material conveying bin, and comprises a three-way pipe, the three-way pipe fixedly penetrates through the inner wall and the outer wall of the horizontal carbonization furnace, a valve and a hollow frame are arranged on the three-way pipe, the hollow frame is fixedly mounted on the circumferential surface of the material conveying bin, and the hollow frame is fixedly connected with the three-way pipe; moisture in biomass raw materials is evaporated through the preheating device, it is ensured that the carbonization process of the raw materials is more sufficient, the temperature in the material conveying bin is controlled, and the situation that the raw materials are coked too early, and generated kerosene adheres to the interior of the material conveying bin is prevented.
Owner:SHAANXI XINNENG BIOMASS TECH DEV CO LTD +1

Armored heat insulation pipe for flexible cable

The utility model relates to the technical field of cables and cable assemblies, in particular to a flexible cable armored heat insulation pipe. The heat insulation pipeline is used for wrapping a cable, and the flanges are arranged at the two ends of the heat insulation pipeline. The heat insulation pipeline wraps an inner layer stainless steel corrugated pipe arranged on the outer surface of the cable in an attached mode. The outer-layer stainless steel corrugated pipe and the inner-layer stainless steel corrugated pipe are coaxially arranged, the outer-layer stainless steel corrugated pipe is arranged outside the inner-layer stainless steel corrugated pipe, and the heat insulation filling material is arranged between the inner-layer stainless steel corrugated pipe and the outer-layer stainless steel corrugated pipe and is silicon dioxide gel. The beneficial effects of the utility model are that the technical scheme realizes an armoring function through the stainless steel outer sleeve with a flexible structure, so that the flexible cable is protected, and the silicon dioxide gel is filled in the stainless steel outer sleeve, so that the cable can be adaptively used in a high-temperature or low-temperature environment, and the effect of isolation protection is achieved.
Owner:JIANGSU ANSHENGDA AEROSPACE TECH CO LTD

Integrated coating heat insulation material of heat insulation pipe

The utility model discloses an integrated coating heat insulation material of a heat insulation pipe and belongs to the technical field of heat insulation materials. Which comprises a heat insulation body which is of a multi-layer attached layered structure, and is characterized in that the heat insulation body comprises at least one reflecting layer and at least one heat insulation layer, and further comprises a fixing piece used for fixing the layered structure into a whole. According to the integrated cladding heat insulation material of the heat insulation pipe, the layered structures are fixed into a whole through the fixing pieces, so that the problems of deviation, staggered layers and the like between the layered structures cannot occur during cladding, and the performance of the heat insulation body is ensured as the problem of deviation between the layered structures of the heat insulation body cannot occur. The technical mistakes of manufacturers of the heat insulation pipes and suppliers of the heat insulation materials for solving the heat insulation material coating problem in the heat insulation pipe manufacturing field are solved, and for the heat insulation pipe manufacturing field, the heat insulation materials can exert the performance to the maximum degree with the minimum cost.
Owner:ZIBO FURUITE THERMAL ENERGY TECH CO LTD

Method and device for heat preservation and decoration of outer wall of building

The invention discloses a method and a device for heat preservation and decoration of an outer wall of a building. The method comprises the following steps: providing a plurality of first pipes which extend in parallel along a first direction and are fixed on the outer wall of the building, wherein the first direction is the height direction of the building; a plurality of second pipes which are connected to the first pipes in the second direction perpendicular to the first direction and fixed to the outer wall of the building are provided, so that the first pipes and the second pipes form a square frame on the outer wall of the building, and the heat preservation material is laid in the square frame to form a heat preservation layer so as to conduct heat preservation on the outer wall of the building; a hanging plate is provided, the hanging plate covers and is fixed to the square frame, and the first pipe and the second pipe are heat insulation pipes with hollow cavities. While heat preservation of the building outer wall is ensured, rain and snow water is prevented from permeating into the heat preservation layer of the building outer wall from the outside through cracks formed by cracking of the outer facade of the heat preservation layer, and cracking of the outer facade of the heat preservation layer caused by leakage and frost heaving of the heat preservation layer is further avoided.
Owner:马肃领

Vacuum-insulated pipe assembly

A vacuum insulated pipe assembly 100 comprises first and second pipe sections. Each pipe section has an outer wall 120, 220 and an inner wall 110, 210 within the outer wall. The outer and inner walls
Owner:AIRBUS OPERATIONS LTD +1

Insulated pipe fitting with anti-skid structure

ActiveCN224550961UPipe fittingSlide plate
The utility model discloses the heat -preserving pipe spare with anti -skidding structure relates to pipe fitting technical field, including heat -preserving pipe main part and support, heat -preserving pipe main part is located the just above of support, heat -preserving pipe main part outside installation has anti -skidding subassembly. The utility model can effectively avoid the problem that heat -preserving pipe spare slips with using and causes interface to come off, promotes anti -skidding subassembly to slide outside heat -preserving pipe main part, makes anti -skidding subassembly move a distance, and the movable end of turnover screw rod is made into the avoidance groove, then twists screw rod and makes it along with the thread cooperation's connecting ring movement, because the position of connecting ring is restricted again and cannot produce relative movement with mounting groove, and the movable end of two mounting rings will be pulled and close to each other, then the inside clamping tooth of two is clamped into the corresponding clamping groove of two limit strips respectively, thus, mounting ring will be restricted, cannot produce relative movement with heat -preserving pipe main part, finally will be prevented the board of two mounting ring outside and is sleeved in the outside of support.
Owner:YUNNAN ZHIREN ENERGY SAVING & ENVIRONMENTAL PROTECTION ENG CO LTD

Energy-saving heat exchange device of refrigerating unit

The utility model discloses an energy-saving heat exchange device of a refrigerating unit, which relates to the technical field of refrigerating equipment and comprises a first tube box, a cold fluid inlet, a cold fluid outlet and a partition plate, the upper end face of the first tube box is in circulating connection with the cold fluid inlet, and the lower end face of the first tube box is in circulating connection with the cold fluid outlet. A partition plate is welded to the middle of the first tube box, and one side of the first tube box is in bolted connection with a fixing flange. According to the energy-saving heat exchange device of the refrigerating unit, the two sides of the shell are coated with the first heat insulation pipe and the second heat insulation pipe correspondingly, the heat insulation pipes are fixed to the shell through cooperation of the first clamping plate, the second clamping plate and the fastening screw, heat loss is reduced, the energy utilization efficiency is improved, and the second pipe box on one side of the shell is in threaded fastening connection with the shell through the connecting flange; the overall sealing performance and stability of the device are guaranteed, it is ensured that the heat exchange process is efficiently carried out, then the energy-saving heat exchange function of the refrigerating unit can be effectively achieved, and the refrigerating efficiency is improved.
Owner:XIAN SECCO TRADING CO LTD

An intake assembly, a compressor

This invention provides an intake assembly and a compressor. The intake assembly includes an intake pipe disposed on a stationary plate, a heat insulation pipe sleeved on the intake pipe, a gap between the intake pipe and the heat insulation pipe, one end of the heat insulation pipe being disposed on the stationary plate, and the other end of the heat insulation pipe extending outside the compressor housing. According to this invention, the technical problem of overheating during intake due to the intake pipe being exposed to the high-pressure chamber gas in the prior art can be solved.
Owner:ZHUHAI LANDA COMPRESSOR +1

Wire bonder and gas pipe connector therefor

A connector for connecting a gas pipe and a heating component of a wire bonder includes a first connection end for connecting the connector to the heating component, and a second connection end for connecting the connector to the gas pipe. A heat-insulation tube is connected between the first connection end and the second connection end. The heat-insulation tube is made of a heat-insulation material and configured to insulate or reduce heat transfer between the first connection end and the second connection end. The connector may further include a first fastening sleeve for fastening the connection between the first connection end and the heat-insulation tube, and a second fastening sleeve for fastening the connection between the second connection end and the heat-insulation tube.
Owner:DIODES TECH CHENGDU +3

An automatic candle and candle system

The utility model belongs to mechanical equipment technical field, concretely relates to an automatic candle and candle system, the automatic candle, include: candle body, high -voltage generator, metal pipe and insulating heat -proof pipe, the high -voltage generator is located in the candle body, the high -voltage generator is equipped with first electrode and second electrode, the metal pipe is located in the candle body, the top end of metal pipe protrudes the top of candle body, the metal pipe is used as gas supply line and its bottom end is connected with the first electrode of high -voltage generator, the insulating heat -proof pipe is sleeved in the metal pipe outside, the second electrode of high -voltage generator is set up in the outside of insulating heat -proof pipe, the utility model discloses through high -voltage generator, metal pipe and so on structure design, has realized the automatic ignition function of candle, need not manual use lighter or match, has improved the convenience and security of use.
Owner:YANTAI QISEN AUTOMATION EQUIPMENT CO LTD

A system and method for detecting leaks in a vacuum insulated pipe line of a test station

The present application relates to a kind of detection systems for detecting the leak of the inner tube of vacuum insulated pipeline of test station, including the vacuum insulated pipeline for transmitting the low-temperature liquid generated by cryogenic refrigerator to distribution valve box, the vacuum insulated pipeline is connected with at least one helium mass spectrometer leak detector;Wherein, the vacuum insulated pipeline is welded by several prefabricated sections through corresponding transition section, each prefabricated section includes internal pipeline, external pipeline and vacuum interlayer between internal pipeline and external pipeline, vacuum safety plug is arranged on the external pipeline of each prefabricated section, and at least one prefabricated section is connected with an auxiliary evacuation system.The present application also relates to a kind of detection method for detecting the leak of the inner tube of vacuum insulated pipeline of test station.The present application realizes the detection of the inner tube of vacuum insulated pipeline section by section, can accurately and quickly determine the inner tube with leak, and quickly and accurately locate the leak range, improve detection efficiency and detection accuracy.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Vacuum heat preservation conveying pipe device and pipeline conveying system

The invention discloses a vacuum heat preservation conveying pipe device and a pipeline conveying system, the pipeline conveying system comprises two conveying pipe devices, a pump and a control unit, each conveying pipe device comprises an inner pipe, an outer pipe and an electric heating structure, each inner pipe is arranged in the corresponding outer pipe, and each outer pipe is arranged in the corresponding electric heating structure. A closed cavity is formed between each inner pipe and each outer pipe, each electric heating structure surrounds each inner pipe, each inner pipe is connected and communicated, the pump pumps air in each cavity to enable each cavity to be in a vacuum state, the control unit controls the operation states of each electric heating structure and the pump, heat energy transmitted outwards through each outer pipe is reduced, and the heat energy utilization rate is improved. The inner pipe is easily kept at a default temperature, and the electric energy consumption of each electric heating structure is reduced.
Owner:DIRECTLYTEK TECHNOLOGY CO LTD

Device and method for detecting folding-resistant on-off stability of FPC (Flexible Printed Circuit) flat cable

The invention discloses a device and method for detecting the folding-resistant on-off stability of an FPC flat cable, and the device comprises a guide support frame which is provided with a plurality of first flat memory alloy tubes, a plurality of flat heat insulation tubes and a plurality of second flat memory alloy tubes, wherein the ports of the first flat memory alloy tubes, the flat heat insulation tubes and the second flat memory alloy tubes are sequentially and fixedly butted at intervals. The port of the first flat memory alloy pipe at one end is fixedly butted with a cold and hot air assembly for switching supply of cold and hot air; wherein two detachable resistance test interfaces are installed on the top surfaces of the two flat heat insulation pipes, and a pressing rod is installed over the second flat memory alloy pipe. According to the invention, the problems of incomplete detection coverage, low efficiency, unreal environment simulation and poor driving stability of an existing FPC flat cable folding resistance on-off stability detection device are solved.
Owner:HUNAN HONGYU TECHNOLOGY CO LTD

Thermal insulation pipeline bearing device

The utility model discloses a heat preservation pipeline bearing device which comprises a bottom plate, a cushioning assembly is arranged at the top of the bottom plate, and an installation assembly is installed at the top of the cushioning assembly. The cushioning assembly comprises a cushioning base, the bottom of the cushioning base is fixedly connected with the top of the bottom plate, a damper is fixedly mounted at the top of the cushioning base, the top of the damper is fixedly connected with the bottom of the mounting assembly, a movable block is slidably connected into the cushioning base, and a connecting column is fixedly connected to the top of the movable block. The top end of the connecting column is fixedly connected with the bottom of the mounting assembly, the bottom of the movable block is fixedly connected with a spring, the bottom end of the spring is fixedly connected with a buffer pad, and the buffer pad is fixedly mounted in the cushioning base. According to the scheme, the bottom plate, the cushioning assembly and the mounting assembly are arranged, through the structure, vibration generated when a medium in the heat preservation pipeline circulates is relieved, and the effects of reducing noise and preventing parts of the bearing device from loosening are achieved.
Owner:HEBEI HUABAO ANTICORROSIVE INSULATION PIPE MFG CO LTD

Shield tunneling ground butt attitude auxiliary control synchronous grouting device

The utility model relates to a shield constructs grouting device technical field especially is shield ground butt joint posture auxiliary control synchronous grouting device, including many grouting pipes, the grouting pipe end connection, one end of one grouting pipe is connected with grouting pump, the surface of many grouting pipes all is equipped with two heat insulation pipes, and the side contact of adjacent two heat insulation pipes, the surface of heat insulation pipe and grouting pipe surface contact is equipped with the heat conduction long hole of surface, and the both ends of two heat insulation pipes are connected through a plurality of fixed agencies, and the inside of a plurality of heat insulation pipes all is equipped with two heat medium delivery pipes, this scheme through two spliced on the grouting pipe surface heat insulation pipe, when disassembling two heat insulation pipes, need to operate fixed agency and separate between two heat insulation pipes, and convenient staff will disassemble heat insulation pipe from the grouting pipe, do not need to disassemble grouting pipe, improve the convenience of operation.
Owner:INNER MONGOLIA UNIVERSITY

Gas-liquid separation device

PendingCN122650574AMechanicsInsulated pipe
The application relates to a gas-liquid separation device, which comprises a pipe component and a heat insulation assembly. The pipe component comprises a heat exchange pipe and a flow pipe. The heat exchange pipe has a first flow channel. The flow pipe is sleeved on the outer periphery of at least part of the heat exchange pipe. The flow pipe and the heat exchange pipe have a second flow channel therebetween. The heat insulation assembly comprises a heat insulation pipe. The heat insulation pipe is sleeved on the outer periphery of at least part of the flow pipe. The heat insulation pipe and the flow pipe have a heat insulation cavity therebetween. The gas-liquid separation device has a containing cavity. The wall forming the containing cavity comprises the outer peripheral wall of at least part of the heat insulation pipe. The heat insulation assembly comprises a first sealing piece and a second sealing piece. The first sealing piece can seal one end of the heat insulation cavity. The second sealing piece can seal the other end of the heat insulation cavity. In this way, the heat exchange effect can be improved.
Owner:SHAOXING SANHUA AUTOMOTIVE THERMAL MANAGEMENT TECHNOLOGY CO LTD

Vacuum-insulated pipe assembly

A vacuum-insulated pipe assembly comprises an outer pipe 120 and an inner pipe 110, concentric along a common central axis 150 to define an annular space, the space evacuated to define a vacuum. The o
Owner:AIRBUS OPERATIONS LTD

Prediction of corrosion under insulation in pipes

PendingUS20260016129A1Pipeline systemsInsulation layerCorrosion under insulation
A system for predicting corrosion under insulation for a network of insulated pipes, vessels, and tanks includes a corrosion modeling engine operable to receive sensor data and generate predicted rates of corrosion. The corrosion modeling engine includes a corrosion rate calculation module operable to compare an operating temperature of an insulated component to a dew point temperature of a surrounding environment to generate a predicted rate of corrosion, and a remaining life prediction module operable to generate a predicted remaining lifetime of the insulated component using the predicted rates of corrosion and on-stream inspection data. The system further includes an alarm communicatively coupled to the corrosion modeling engine and operable to alert an operator that the predicted rate of corrosion, the predicted remaining lifetime, or a combination thereof is within a pre-determined threshold.
Owner:SAUDI ARABIAN OIL CO

An eccentric evaporator

The present invention belongs to the field of evaporators and proposes an eccentric evaporator, comprising a tank body, a discharge hopper, legs, a tank cover, a secondary steam outlet, a sensor connection port, a steam inlet, a condensate interface, a feed port, a discharge port, a control instrument, and a steam heating assembly. The discharge port is eccentrically arranged at the bottom of the discharge hopper. The steam heating assembly includes a heating well corresponding to the discharge port above and below. The exterior of the heating well is provided with a special-shaped wall sleeve that cooperates with the inner wall of the tank body. The special-shaped wall sleeve includes a cylindrical section and a fin plate group. The fin plate group includes a plurality of hollow fin plates distributed around the heating well. A condensation port is provided at one end of the hollow fin plate facing the center of the heating well. A condensate outlet pipe, an insulation pipe, and a drainage pipe are provided on the outlet side of the condensate outlet. The output end of the drainage pipe is connected to the condensate interface. The present invention has a reasonable design, a simple structure, can make the material flow in a sheet film, is conducive to improving heat transfer efficiency, has a good discharge effect, and has a high comprehensive utilization rate. It is suitable for large-scale promotion.
Owner:SHANDONG JIRONG THERMAL TECH CO LTD

Method of forming a longitudinal slot in pre-insulated piping

A method and apparatus for forming a longitudinal channel in a pre-insulated pipe. The pipe is insulated by spraying a foam as the pipe is being transported in a longitudinal direction while simultaneously being rotated about the pipe's longitudinal axis. The longitudinal channel is formed in the insulation by a cutter that rotates around the perimeter of the pipe while the pipe is being rotated around the pipe's longitudinal axis. The channel houses a heat tracing cable that is subsequently covered with a layer of film and a further layer of foam.
Owner:GF PIPING SYST CANADA LTD

Core holder and experimental method for thermal stress fracturing experiment

This invention discloses a core holder and experimental method for thermal stress fracturing experiments, comprising: an insulated pipe kit having a through cavity; a heating device at one end of the insulated pipe kit, and an insulation layer in the area outside the heating device; a first temperature sensor on the upper side of the area opposite the insulation layer, and a transparent glass-encased steel container on the lower side of the area opposite the insulation layer; a second temperature sensor on the heating device; a clamping device for clamping the insulated pipe kit; a piston kit disposed on the clamping device for introducing gas or liquid into the cavity of the insulated pipe kit; and a device for clamping the experimental core placed in the cavity of the insulated pipe kit. This experimental apparatus, in addition to thermal stress fracturing displacement experiments, can also meet the equipment requirements of conventional body experiments, exhibiting strong functionality.
Owner:SOUTHWEST PETROLEUM UNIV

Heat preservation and insulation pipeline joint sealing connection structure

The utility model discloses a heat preservation and insulation pipeline joint sealing connection structure which comprises a polyurethane heat preservation pipeline, sealing connection assemblies are arranged at the two ends of the polyurethane heat preservation pipeline, and the outer sides of the sealing connection assemblies are wrapped with buckling type heat preservation assemblies. After the ends of the adjacent polyurethane heat preservation pipelines are centered, the sealing gasket and the pressing ring are installed in place, the flange plate on one side is rotated so that the flange plates on the two sides can be aligned, the flange plates on the two sides are fixedly connected through the bolt connecting piece, and in the fastening process of the bolt connecting piece, the annular sleeve seat extrudes the rubber sealing gasket and the limiting ring seat; therefore, the pressing ring is in close contact with the sealing gasket, the mechanical sealing effect of the pipeline joint position is achieved, the buckling type heat preservation assembly wraps the outer portion of the connecting position, and the heat preservation and heat insulation effect of the combination position between the polyurethane heat preservation pipelines can be further improved.
Owner:PANJIN LIAOHE OIL FIELD JINHUAN IND CO LTD

A polyurethane insulated pipe with a pipe support

This utility model provides a polyurethane insulated pipe with pipe supports, belonging to the field of insulated pipe technology. It addresses the problem that existing polyurethane insulated pipes with pipe supports require disassembly and repositioning of the pipe supports when their installation position is incorrect, which is cumbersome and inefficient. The new design includes two fixed uprights, both fixedly connected to the upper surface of a base; two sliding uprights, each slidably connected to the inner side of the two fixed uprights; a fixed pipe support fixedly connected to the upper end of the two sliding uprights; a hinged pipe support hinged to the upper end of the fixed pipe support; and an insulation sleeve positioned on the upper end of the fixed pipe support. This design enables easy installation and adjustment of the pipe support, improving adaptability and reliability, and reducing the labor intensity of construction workers.
Owner:QINGDAO DONGHUA ENERGY SOURCE EQUIP MFG CO LTD