349 results about "Insulated pipe" patented technology

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.

The utility model relates to production equipment for spraying and winding a thermal insulation pipe. The production equipment comprises a rack, a pipeline supporting assembly, a pipeline conveying assembly and a pipeline cutting assembly, the pipeline supporting assembly is used for supporting the heat preservation pipe and comprises at least two electric rollers, and the two electric rollers are arranged in a spaced mode and supported on the two sides of the heat preservation pipe correspondingly. The pipeline conveying assembly is used for conveying heat preservation pipes and comprises a supporting plate, the supporting plate is horizontally arranged between the two electric rollers, and a plurality of conveying driving mechanisms are arranged on the lower side of the supporting plate. Each conveying driving mechanism comprises a crank, a connecting rod and second driving equipment, the crank is rotationally mounted on the rack, one end of the connecting rod is hinged to the crank, and the connecting position deviates from the rotation center of the crank; the other end of the connecting rod is fixedly connected with the supporting plate; the second driving device is in transmission connection with the crank and drives the crank to rotate around the rotation center of the crank. The pipeline cutting assembly is used for cutting off the heat preservation pipe. Conveying of the heat preservation pipe is achieved, abrasion is not prone to occurring, and the stability of equipment is ensured.

The invention relates to the technical field of disassembling tools for insulating water pipes in cylinder sleeves on low-speed diesel engines, and discloses a tool for pulling out an insulating pipe of a marine low-speed engine cylinder sleeve, which comprises an assembly block, trapezoidal pull rods, an opening rod, an assembly arm, a screw rod, a screw sleeve, an impact block and a limiting block, the trapezoidal pull rod is connected with the interior of the assembly block through a first spring, the opening rod and the impact block are in threaded connection with each other, the limiting block is inserted into the left side of the impact block, the assembly block comprises a threaded cylinder, the bottom of the threaded cylinder is in threaded connection with a bottom cover, and a limiting column is assembled at the top of the bottom cover and connected with the first spring. According to the tool for pulling out the insulating pipe of the cylinder sleeve of the marine low-speed machine, the elastic pin can be conveniently disassembled, and the situation that a rust remover is directly sprayed into a pipeline, consequently, the rust remover cannot be completely sprayed to the outer portion of the elastic pin, and the rust remover is wasted is avoided.

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.

The invention belongs to the field of ammonia cracking hydrogen production devices, and particularly relates to an ammonia catalytic cracking hydrogen production device based on engine exhaust waste heat utilization, a control system and a control method.The ammonia catalytic cracking hydrogen production device comprises an ammonia catalytic cracking hydrogen production system, a nitrogen-hydrogen separation system and a working condition control system; the ammonia catalytic cracking hydrogen production system comprises an exhaust pipe, and an ammonia gas cracking pipe and a heat insulation pipe which sequentially wrap the outer wall of the exhaust pipe; the ammonia gas cracking pipe comprises an ammonia gas inlet and a cracking mixed gas outlet, and a gap is reserved between the inner wall of the ammonia gas cracking pipe and the outer wall of the exhaust pipe and used for circulation and cracking of ammonia gas; the nitrogen-hydrogen separation system comprises a hydrogen separation unit, a nitrogen separation unit and an ammonia gas recovery unit; the cracking mixed gas outlet is connected with the hydrogen separation unit; the ammonia gas recovery unit comprises an ammonia water heating bin, and the exhaust pipe penetrates through the ammonia water heating bin. Ammonia gas cracking and nitrogen-hydrogen separation are completed by fully utilizing engine tail gas waste heat, the cost and energy consumption are remarkably reduced, and hydrogen supply for promoting efficient and reliable combustion of the ammonia engine can be obtained.

A water injection pipe column and a steam injection heat insulation pipe are installed in a casing pipe in parallel, a horn opening is formed in the bottom of the water injection pipe column, and an oil pipe centralizer is arranged between the water injection pipe column and the outer wall of the steam injection heat insulation pipe; a double-pipe packer is arranged among the inner wall of the casing pipe, the outer wall of the water injection tubular column and the outer wall of the steam injection heat insulation pipe, an eccentric packer is arranged between the outer wall of the steam injection heat insulation pipe and the inner wall of the casing pipe, the bottom of the steam injection heat insulation pipe is connected with a rod type pump seat, and a pen point is installed at the bottom of the rod type pump seat. A sucker rod is installed in the steam injection heat insulation pipe, the bottom of the sucker rod is connected with a rod pump, and the rod pump is installed on a rod pump base. Water injection is carried out on a thin oil layer, steam huff and puff is carried out on a thick oil layer, then rotary pumping production is carried out, the well spacing number is reduced, and the block oil extraction speed is increased. Meanwhile, the tubular column further has the functions of negative pressure oil extraction and strong oil pipe righting, liquid production of an oil well is improved, and oil pipe winding is prevented.

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.

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.

The embodiment of the invention provides a prefabricated heat preservation pipeline, and relates to the field of heat preservation pipes. The prefabricated heat preservation pipeline comprises a working steel pipe, the outer side of the working steel pipe is sleeved with an outer sleeve steel pipe, supporting bases are arranged at the two ends of the working steel pipe, and the working steel pipe supporting bases and the outer sleeve steel pipe form a closed bin. The ultra-fine glass wool felt with the thickness of 250 mm is used, the heat preservation interlayer is subjected to gas replacement, air is replaced with carbon dioxide, the heat preservation effect is remarkably improved, glass wool is adopted as a heat preservation material, cost is saved, the supporting seats made of hard polyurethane foam are arranged at the two ends of the pipeline, and the heat preservation effect is improved. And a sealing bin is formed among the outer sleeve steel pipe, the supporting seat and the working steel pipe, so that the stability and the sealing performance of the structure are enhanced.

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.

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.

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.

The utility model discloses an anti-freezing device for water conservancy and hydropower equipment. The water conservancy and hydropower equipment anti-freezing device comprises a water pipe, a heat insulation pipe is installed outside the water pipe in a sleeving mode, a closed installation cavity is formed between the heat insulation pipe and the water pipe, a heating rod is installed in the installation cavity, anti-freezing liquid is injected into the installation cavity, and a heat insulation layer is installed on the outer ring of the heat insulation pipe. According to the anti-freezing device for the water conservancy and hydropower equipment, the water pipe, the heat insulation pipe and the heating rod are arranged, anti-freezing liquid is injected between the heat insulation pipe and the water pipe, the anti-freezing liquid can be conveniently heated through the heating rod, the water pipe is heated through heat transfer of the anti-freezing liquid, and the water pipe is prevented from being frozen; heat loss can be effectively reduced, and the effects of saving energy and reducing consumption are achieved.

The utility model discloses a core pipeline for a middle-deep geothermal well, and belongs to the technical field of geothermal well pipelines. The pipeline adopts a segmented assembly structure and comprises a high-temperature section pipeline with the applicable temperature higher than 100 DEG C, a medium-temperature section pipeline with the applicable temperature ranging from 40 DEG C to 80 DEG C and a low-temperature section pipeline with the applicable temperature lower than 40 DEG C, and the pipelines are sequentially arranged and fixedly connected through connecting sections to form a complete assembly pipeline; and the lengths of the high-temperature section pipeline, the medium-temperature section pipeline and the low-temperature section pipeline correspond to the depths of all temperature sections in the geothermal well. The pipeline adopts a segmented assembly structure, the high-temperature section adopts the high-temperature-resistant pipe, and the wall thickness of the pipe is small, so that heat exchange between water and high-temperature geology can be enhanced, and the temperature of the water is increased; the medium-temperature section is large in wall thickness and high in strength, and can be used for a long time in the temperature section; the medium-temperature section pipeline is made of a heat-insulating pipe which is large in wall thickness and high in strength; the low-temperature section is large in wall thickness, high in strength and good in heat preservation effect.

To capture carbon dioxide from ambient air, a housing having at least five openings and one cooling route for a coolant from a base station to circulate within the housing may be used. The housing may include five openings: one for ambient air to enter the housing, one for the coolant to enter the housing, one for the coolant to exit the housing, one for air to exit the housing and one, the below most, for a carbon dioxide to exit the housing. The cooling route is between the openings for the coolant, formed by at least one partially insulated pipe with an uninsulated pipe surface portion. The housing further includes at least one disc made of a solid carbon dioxide sorbent material for capturing carbon dioxide and being arranged within the cooling route with a direct physical contact to the un-insulated pipe surface portion.

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.

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.

The utility model relates to the technical field of THDS equipment snow melting, and discloses a THDS equipment snow melting device, which comprises a shell, a THDS equipment main body is arranged in the shell, two probes are arranged at the front end of the THDS equipment main body, a heating assembly is arranged between the outer surface of the THDS equipment main body and the interior of the shell, and the THDS equipment main body is arranged in the shell. The heating assembly comprises an observation hole, a heat insulation shell, a heat conduction sheet, a heat insulation pipe sleeve, a heating sheet, a weakening groove, a temperature control switch, a temperature sensor and a wireless PLC. According to the snow melting device for the THDS equipment, through the heat insulation shell and the heat insulation pipe sleeve, a heating component in the shell is isolated from the THDS equipment and other structures, negative interference caused by the temperature in the temperature rising process to measurement, operation monitoring and other operations of the THDS equipment is avoided, meanwhile, a wireless PLC is used for enabling a user to remotely control operation of the heating structure, the convenience in use is improved, and the practicability is high. And the heating temperature of the heating sheet is limited not to exceed 45 DEG C, so that false alarm of a hot shaft is prevented.

The invention relates to an insulating rod testing tool for a safety tool. An insulating pipe is fixedly arranged on a bottom support seat through a connecting fixing frame. A rectangular through hole is arranged on one side of the insulating pipe. A pushing block is arranged outside the rectangular through hole. A front fixing ring is arranged on the pushing block. The front fixing ring is arranged in an insulating channel through the rectangular through hole. A wire is fixedly connected to an ammeter through a wire limiting block. A rear fixing ring is arranged inside the other side of the insulating pipe. The rear fixing ring is fixedly connected to the bottom support seat through a rear fixing frame. The front fixing ring and the rear fixing ring are on the same horizontal plane. An arc-shaped protrusion and an arc-shaped inner groove baffle are respectively arranged on the front and rear side walls of the bottom support seat. The arc-shaped protrusion is a longitudinally cut columnar structure. A circular through hole is vertically arranged in the center of the arc-shaped protrusion. A lower thread is arranged at the bottom of the circular through hole. The arc-shaped inner groove baffle matches the arc-shaped protrusion structure. The invention has the advantages of good withstand voltage test effect, convenient use for outdoor operation and high safety level.

The utility model discloses a street lamp heat dissipation structure, which belongs to the technical field of illumination, and comprises a mounting plate mounted in a lampshade, heat dissipation fins and a secondary heat dissipation assembly, the lampshade comprises a first installation area and a second installation area, the installation plate is installed in the first installation area, the lamp panel is installed on the bottom face of the installation plate, and the cooling fins are installed on the top face of the installation plate. The secondary heat dissipation assembly comprises a water tank, a refrigerator and a cooling water pipe, the water tank is installed in the second installation area of the lampshade, the refrigerator is installed on the side wall, in the second installation area, of the lampshade, the hot end of the refrigerator is located outside the lampshade, the cold end of the refrigerator is located in the lampshade, and the cold end of the refrigerator is connected with the water tank through a heat insulation pipe. The cooling water pipe penetrates through the side wall of the second installation area to be installed on the top face of the installation plate. Water in the water tank is refrigerated through the refrigerator, cooling water cools the mounting plate and the lamp panel through the cooling water pipe, heat dissipation of the lamp panel is accelerated, and therefore the service life of the lamp panel is prolonged.

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.

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

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.

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.

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.

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.

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.

The present invention discloses an aerosol generating device that generates uniform smoke, comprising a shell, the top of which is provided with an insertion port for inserting a consumable containing a smokeable material, a heater for heating the smokeable material in the consumable provided in the shell, an insulating tube is sleeved on the outer side of the heater, the length of the insulating tube is greater than the length of the heater, and the axial centers of the heating tube and the insulating tube do not coincide; the present invention also discloses an aerosol generating system comprising the above-mentioned aerosol generating device and consumables. In the present invention, the axial centers of the heating tube and the insulating tube do not coincide, and this asymmetric arrangement can change the thermal field distribution inside the heating tube during use, so that the smoke generated by the smokeable material during use is more uniform.

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.

The utility model discloses an insulated pipe clamp hanging device, which relates to the technical field of pipe clamp hanging, and comprises a hanging device body, the bottom end of the hanging device body is in threaded connection with a hanging ring, the bottom end of the hanging ring is fixedly connected with a supporting plate, the bottom end of the supporting plate is in threaded connection with a limiting plate, and the bottom end of the limiting plate is rotatably connected with a rotating shaft. By the adoption of the structure, when the pipe clamp is used, the first pipe clamp, the second pipe clamp and the pipe body can be hoisted together through the hoisting device body, and before the fixed shell is hoisted, a user can rotate the fixed shell through the rotating shaft to adjust the pipe body to the angle where the pipe body is convenient to disassemble and assemble; and then the limiting columns are inserted into the corresponding first inserting holes and second inserting holes, so that the angle of the pipe body can be effectively limited, meanwhile, the supporting columns can conduct secondary limiting supporting on the top end of the fixing shell without hindering adjustment of the angle of the fixing shell, and therefore the stability of angle adjustment of the pipe body can be effectively improved.