1816results about "Pipe heating/cooling" patented technology

A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

The present application belongs to the technical field of mass concrete construction, and aims to solve the problem of high thermal resistance and slow heat dissipation of traditional cooling pipe laminar bottom layer, and discloses a gravity dam construction cooling water pipe based on destruction of laminar bottom layer and a method thereof. The cooling water pipe comprises a plurality of series water pipe units, each water pipe unit comprises a steel pipe, a flexible spring hose is arranged in the steel pipe, and the spring hose forms a spiral protruding turbulence structure along the inner wall of the steel pipe; the hose is fixed by pointwise anchoring and outer wall surface bonding with glue, and a ring is arranged at both ends for limiting and assisting turbulence. The present application breaks through the thermal resistance of laminar bottom layer, greatly improves the hydration heat conduction efficiency, is convenient to construct and has durable structure, and is suitable for mass concrete temperature control requirements.

A medical treatment system, such as a peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, the peritoneal dialysis system may include a control system that can adjust a volume of fluid infused into a peritoneal cavity to prevent intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle of the one or more therapy cycles to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting a next therapy cycle of the one or more therapy cycles. The control system may also adjust a dwell time of the fluid within the peritoneal cavity during the one or more therapy cycles in order to complete a therapy within a scheduled time period. A cycler may also be configured to have a heater control system that monitors both a temperature of a heating tray and a temperature of a bag of dialysis fluid in order to bring a temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

Pipe apparatus can include a coupling device with a seal circumscribing a central axis. The seal further includes a first circumferential pocket at least partially defined by a first and second circumferential flange. A fluid guide device positioned at least partially within the first circumferential pocket includes a plurality of segments that are radially arranged to circumscribe the central axis. The fluid guide device at least partially defines a fluid path. Methods can include using the coupling device to couple a first end portion of a first pipe segment to a second end portion of a second pipe segment. Methods of using the pipe apparatus can include passing fluid through the fluid path to cool the seal.

The invention discloses an efficient anti-freezing and anti-blocking integrated induction heating system and method for an oil and gas pipeline, belongs to the technical field of anti-freezing and anti-blocking of oil and gas pipelines, and aims at solving the problems that in the prior art, heating efficiency is low, energy consumption is huge, heating uniformity and adaptability are poor, the system integration degree is low, and the intelligent degree is insufficient. Comprising the steps of S1, induction heating unit arrangement and power management; s2, real-time temperature monitoring and data acquisition; s3, intelligent data analysis and precise heat management; the electromagnetic induction heating principle is adopted, the induction coil directly heats the pipeline and the internal medium, heat conduction loss and heat energy radiation loss of heating modes such as traditional resistance wires and heat tracing bands are reduced, the intelligent power management module can optimize power supply and power adjustment, and the self-adaptive environment and load adjustment strategy is combined, so that the self-adaptive load adjustment is achieved. The heating power can be automatically adjusted according to the environment temperature and the pipeline load, the anti-freezing and anti-blocking effect is guaranteed, meanwhile, energy consumption is remarkably reduced, and the burden of an electric power supply system is relieved.

The invention discloses a hydrogen storage and transportation system under a wind-solar hydrogen production project and a control method. The hydrogen storage and transportation system at least comprises a hydrogen flowing pipeline and a water flowing pipeline, the hydrogen flowing pipeline at least comprises a first compressor, a low-pressure hydrogen storage container, a third compressor and a second heat exchanger which are connected in sequence; the first compressor is further sequentially connected with a second compressor, a high-pressure hydrogen storage tank, an eighth valve connected with the pressure reducing valve in parallel and a third compressor; the second compressor, the high-pressure hydrogen storage tank and the low-pressure hydrogen storage container are connected in parallel; the high-pressure hydrogen storage tank is connected with the pressure reducing valve through a ninth valve connected with the third compressor in parallel; the first compressor pressure is smaller than the third compressor pressure and smaller than the second compressor pressure; the water flow pipeline at least comprises a first heat exchanger, a first water pump and a second water pump which are sequentially arranged in the water flow direction. The second water pump is in fluid communication with the second heat exchanger; the first heat exchanger is arranged on the cooling water pipeline corresponding to the compressor. The multi-aspect requirements of stable output, efficient storage, energy conservation, environmental protection and the like can be met.

This invention provides a jacketed multi-way plunger device and its application, belonging to the field of pipeline engineering design. The jacketed multi-way plunger device includes a first plunger valve and a second plunger valve; a first pipeline is vertically connected to the end of the first plunger valve, and a second pipeline is obliquely connected to the first plunger valve; a third pipeline is vertically connected to the end of the second plunger valve, and the first pipeline and the second plunger valve are obliquely connected. This invention integrates the first and second plunger valves into one unit through the pipeline arrangement, achieving both pipeline shut-off and flow functions, while simultaneously enabling continuous material feeding.

The invention belongs to the technical field of gravity dam construction, and provides an assembled concrete cooling pipe structure and method for gravity dam construction. The cooling pipe is composed of a plurality of pipe body units connected in series, and lining pieces are arranged in metal pipes of the pipe body units. The lining piece and the elastic steel sheets form a criss-cross cage type structure through the strip-shaped plates, the strip-shaped plates are provided with pitted surfaces and notches, the steel sheets can stretch out and draw back to achieve variable-diameter adjustment, and water flow can be forced to generate turbulent flow to damage the laminar flow bottom layer. The method comprises the steps of raw material pretreatment, notch and pitted surface machining, lining piece assembling, metal pipe assembling and fixing and pipe body unit series connection. The structure is stable, manufacturing is convenient, boundary layer thermal resistance can be reduced, heat transfer efficiency is improved, concrete temperature cracks are reduced, and the gravity dam construction requirement is met.

The invention relates to the technical field of thermal insulation pipes, in particular to a prefabricated directly-buried thermal insulation pipe which comprises a pipe body, the outer wall of the pipe body is sleeved with a pair of mounting flanges, a plurality of mounting holes are formed in the pair of mounting flanges, and the outer wall of the pipe body is sleeved with a plurality of supporting sleeve frames; a pair of connecting side frames is fixedly connected between the outer walls of the multiple supporting sleeve frames, a lateral supporting mechanism is arranged between the multiple supporting sleeve frames, and a longitudinal supporting mechanism and a movable heat release mechanism are arranged in the pair of connecting side frames correspondingly. By arranging the lateral supporting mechanism and the longitudinal supporting mechanism, the pipeline body can be supported and fixed in the lateral direction and the longitudinal direction, the supporting strength of the pipeline body is guaranteed, the pipeline body is kept stable, and the pipeline body is not prone to shaking due to the influence of external factors in the subsequent using process.

The invention relates to the technical field of pipeline electromagnetic heating, in particular to a three-phase mixed transportation glass fiber reinforced plastic pipeline electromagnetic heating device which comprises a glass fiber reinforced plastic pipeline, a control module and a plurality of heating plates fixedly installed on the inner side of the lower portion of the glass fiber reinforced plastic pipeline at intervals in the length direction. A plurality of electromagnetic coils are fixedly mounted at intervals below the glass fiber reinforced plastic pipeline corresponding to the positions of the heating plates in the length direction, and each electromagnetic coil is wound by a plurality of circles. The heating device is reasonable and compact in structure, alternating current can be provided for the electromagnetic coil by arranging the control module, the power of the electromagnetic coil can be controlled, and after the electromagnetic coil is electrified, the alternating current generates an alternating magnetic field to act on the wavy heating plate, so that fluid in the glass fiber reinforced plastic pipeline is heated; compared with a traditional method that an electromagnetic coil is spirally wound on the outer side of the pipeline, the installation mode is simpler, the installation cost is low, meanwhile, the distance between the electromagnetic coil and the heating plate is closer, the heating effect is better, and the electromagnetic heating efficiency is improved.

The invention discloses a variable stiffness pipe and a continuum robot variable stiffness module, and relates to the technical field of continuum robotics.The variable stiffness pipe comprises a flexible inner pipe and a flexible outer pipe arranged outside the flexible inner pipe in a sleeving mode, and a phase change material and a flexible heat exchange device are arranged between the flexible inner pipe and the flexible outer pipe; the heat exchange device can exchange heat with the phase-change material and enable the phase-change material to be changed from a solid phase to a liquid phase, a flexible pipe is further arranged in the filling space, a plurality of hollow groove sets are formed in the pipe wall of the flexible pipe in a penetrating mode, the hollow grooves are filled with the phase-change material, the flexible pipe can be freely bent when the phase-change material is in the liquid phase, and the flexible pipe can be bent when the phase-change material is in the solid phase. According to the variable-stiffness continuum robot, the shear modulus resisting shear deformation under the shear stress is converted into the compression modulus resisting compression deformation under the compression stress, the stiffness of the variable-stiffness pipe can be improved, the variable-stiffness continuum robot comprises the variable-stiffness pipe and a control mechanism, and the variable-stiffness continuum robot can be controlled by controlling the stiffness of the variable-stiffness pipe to change. And the motion control module is matched to move towards the target position and control the surgical tool.

The utility model relates to the technical field of pipeline systems, in particular to a pipeline heat treatment device which comprises a cylindrical heater, the heater comprises two detachable semicircular cylinders which are symmetrically arranged, and heating wires are arranged on the semicircular cylinders; the heater is a straight cylinder or a bent cylinder which is the same as the heated pipeline section in shape, and the length of the heater is slightly larger than that of the heated pipeline section; sealing plates are arranged at the two ends of the semicircular cylinder, and semicircular through holes allowing pipelines to pass through are formed in the sealing plates; when the pipeline heat treatment device heats the pipeline, heating is more uniform, and the heating effect is better.

The invention provides a pipeline gas cooling sleeve device and a using method, and belongs to the technical field of pipeline gas cooling, the pipeline gas cooling sleeve device comprises an upper shell and a lower shell, the upper shell and the lower shell are arranged on the outer side of a gas outlet pipeline in a sleeving mode, a cooling cavity is formed between the upper shell and the lower shell, and a cold water inlet pipe and a cold water outlet pipe are arranged at the top of the upper shell; the cold water inlet pipe and the cold water outlet pipe are both communicated with the cooling cavity; a plurality of buckle assemblies are arranged on the two sides of the upper shell, locking assemblies are arranged on the two sides of the lower shell, the upper shell and the lower shell are connected through the buckle assemblies and the locking assemblies, and a sealing assembly is arranged between the upper shell and the lower shell. Stable connection of the cooling sleeve can be achieved, looseness caused by vibration or thermal deformation is avoided, and meanwhile the sealing performance of the cooling sleeve is guaranteed.

The utility model relates to the technical field of pipeline installation, in particular to a heat insulation type pipeline cabin penetration framework which comprises a cabin wall, a cooling assembly and an installation assembly, a casing pipe is arranged on the cabin wall, a high-temperature pipeline is arranged in the casing pipe, the high-temperature pipeline penetrates through the casing pipe, the casing pipe is provided with the cooling assembly corresponding to the high-temperature pipeline, and the casing pipe is provided with a fixing plate. A connecting plate is arranged on the high-temperature pipeline, and the rear end of the connecting plate is attached to the fixing plate. When the device is used, the motor is started to drive the rotating shaft and the first gear to rotate, the first gear drives the first gear ring to rotate, the first gear ring drives the second gears to rotate, and the second gears drive the rotating rod and the fan blades to rotate, so that the speed of air between the sleeve and the high-temperature pipeline is increased conveniently; cooling between the sleeve and the high-temperature pipeline is facilitated, heat of the high-temperature pipeline is prevented from being transmitted to a hull structure, and the heat insulation effect between the high-temperature pipeline and the hull bulkhead is improved.

The present invention provides a temperature control method and system for a gas-liquid separation device of a distributed flow calorimeter, the method comprising: starting from the gas pipeline inlet of the gas-liquid separation device, building a gas pipeline in an adiabatic environment; obtaining temperature data of the gas pipeline inlet and outlet and the pipeline surface; dynamically compensating the voltage signal to reduce the measurement value deviation; fitting a polynomial about temperature and heating power to obtain a functional relationship between the difference between the current temperature and the target temperature and the required heating power; adjusting the heating power according to the functional relationship to ensure that the overall temperature of the gas pipeline remains constant. The present invention can well protect the normal use of the gas pipeline, avoid affecting the normal operation of the device when the gas expands and absorbs heat, and make the collected gas products more stable and easy to collect and store; it can also more accurately deduce the relationship between the thermophysical parameters and physicochemical changes of the gas products, which is conducive to further research on the composition and characteristics.

This specification describes a fluid heating device and its uses. The fluid heating device can solve problems of conventional fluid heating devices. For example, the fluid heating device can efficiently support carbon neutrality. The fluid heating device can transfer precisely controlled heat to the fluid within a short period of time, for example, when heating a large amount of fluid. This specification also describes a method of heating a fluid using the fluid heating device.

The invention relates to an electric heat tracing type liquid cargo conveying hose which is composed of an inner layer, an outer layer and an electric heat tracing layer between the inner layer and the outer layer, the inner layer is composed of an inner rubber layer, a pressure-bearing framework and a static electricity conducting copper wire, the pressure-bearing framework is arranged between the inner rubber layer and the electric heat tracing layer, and the static electricity conducting copper wire is arranged on the pressure-bearing framework; the electric heat tracing layer is composed of heat tracing cables and filler, the heat tracing cables are spirally wound in the pipe body, and the filler is filled between the heat tracing cables after the heat tracing cables are wound and fixed; the outer layer is composed of a protective adhesive tape layer and an outer adhesive layer arranged outside the protective adhesive tape layer. The constant-power heat tracing cable is wound in the pipe wall, when liquid is conveyed, the hose is heated through the heat tracing cable, a certain temperature is kept in the pipeline, and the condensation phenomenon occurring when the liquid is conveyed in a low-temperature environment is prevented.

Provided is an oil conveying system, comprising: a first pipeline (201), which is used for conveying crude oil (202); a second pipeline, which is sleeved outside of the first pipeline (201) and forms a gas conveying channel (206) with the first pipeline (201), wherein the temperature and pressure of a gas are greater than the temperature and pressure of the crude oil (202); and a plurality of gas bag units, which are arranged on the first pipeline (201) in the extension direction of the first pipeline (201), each gas bag unit comprising a gas bag (207) and a three-way valve (208), wherein the gas bags (207) are arranged on an inner wall of the first pipeline (201); the three-way valves (208) are embedded in the body of the first pipeline (201), with first ports (209) of the three-way valves (208) being in communication with the gas conveying channel (206), second ports (210) thereof being in communication with inflation and deflation ports of the gas bags (207), and third ports (211) thereof being in communication with the first pipeline (201); when the first ports (209) are in communication with the second ports (210), the gas is filled into the gas bags (207) from the gas conveying channel (206) so as to heat the crude oil (202); and when the second ports (210) are in communication with the third ports (211), the gas is discharged from the gas bags (207) into the first pipeline (201), so as to reduce the viscous resistance between the crude oil (202) and the inner wall of the first pipeline (201) and heat the crude oil (202).

The invention discloses a deep sea polymetallic nodule boiling type lifting system which comprises a collecting platform on the sea surface and a relay station suspending in the sea, the relay station is communicated with the collecting platform through a pipeline, the pipeline comprises a plurality of sections of lifting vertical pipes, and every two adjacent sections of lifting vertical pipes are connected through a boiling type heating device. The boiling type heating devices are the same in structure. The lifting system disclosed by the invention integrates the technical characteristics of the existing pipeline conveying technology, and is simple in structure and high in reliability. Liquid phase vaporization is used as a gas phase source in a pipeline, a boiling type heating device with a metal heating pipe and a heat insulation layer is directly connected with a lifting vertical pipe, and meanwhile, a plurality of sections of boiling type heating devices are arranged in the pipeline, so that the stability of providing gas phase power is ensured.

A plural component dispensing system includes a first heated hose, a second heated hose, a controller, and a dispensing device. The first heated hose and the second heated hose include electrical wires that supply heat to the first and second heated hoses to heat fluid components within the first and second heated hoses. The first and second heated hoses are electrically coupled to the controller and are fluidly coupled to the dispensing device. The controller is configured to control and alternate the electrical power supplied to the first heated hose and the second heated hose to heat the first heated hose independent of the second heated hose.

The invention discloses a device for heating a crude oil pipeline through graphene heating oil, and relates to the technical field of crude oil pipelines, the device comprises a pipeline main body, a graphene nano film is arranged in the pipeline main body, through heating of the graphene nano film, the viscosity of crude oil is reduced, the flow resistance and the head loss are reduced, and the crude oil conveying efficiency is improved; and a folding framework is fixed on the outer side of the graphene nano-film. The graphene nano film is arranged in the pipeline body, the crude oil conveying efficiency is improved through graphene heating, crude oil viscosity reduction, flow resistance reduction and head loss reduction, the temperature of the pipeline body is maintained through the heat preservation layer and graphene heating, and natural gas hydrate is prevented from being generated; the situation that the safety of a pipeline body is affected by pressure rise in the pipeline due to hydrate is avoided, meanwhile, by means of acoustic property change of graphene, the hydrate generation position can be accurately positioned through acoustic logging, and measures can be conveniently taken in time for treatment.

The invention relates to the technical field of metal expansion joint assistance, and discloses a metal expansion joint for a low-temperature environment, which comprises a metal expansion joint component, overcompensation protection components which are uniformly distributed are fixedly mounted outside the metal expansion joint component, and a cooling component is fixedly mounted at the bottom end of the metal expansion joint component. The metal expansion joint assembly is used for connecting pipelines at the two ends and conducting length compensation on the pipelines through the deformation function of the metal expansion joint assembly, the overcompensation protection assembly is used for providing an overcompensation protection function adapting to the pressure intensity of fluid in the pipelines, the cooling assembly is used for conducting cooling protection on the metal expansion joint assembly, and the metal expansion joint assembly comprises an upper flange plate. An upper flange plate is arranged below the pipeline, a lower flange plate is arranged below the upper flange plate, the upper flange plate and the lower flange plate are vertically symmetrical, threaded holes which are uniformly distributed are formed in the upper flange plate and the lower flange plate, and the device has an over-compensation protection function adaptive to the pressure intensity of fluid in the pipeline and has a function of cooling the temperature of the fluid in the pipeline.

The invention relates to the technical field of waste oil heating, in particular to an electromagnetic heating system of a waste oil conveying pipeline, and aims to solve the problem that in the prior art, the heating temperature of waste oil is not uniform, and coking is easily generated in the pipeline. Comprising an oil reservoir; the oil delivery pipe is communicated with the oil storage pool, and the bottom of the oil delivery pipe is communicated with an oil discharge pipe; a heating coil; the decoking mechanism is coaxially arranged in the oil conveying pipe, and the end, away from the oil storage pool, of the decoking mechanism is connected with a driving mechanism; wherein the heating coil is used for uniformly heating the oil conveying pipe, and the driving mechanism is used for driving the decoking mechanism to reciprocate along the axis direction of the oil conveying pipe or driving the decoking mechanism to rotate along the circumferential direction of the oil conveying pipe. The heating coil wound on the peripheral wall of the oil conveying pipe can uniformly heat oil in the oil conveying pipe, coking caused by local overheating is avoided, meanwhile, the decoking mechanism can continuously enable the oil in the oil conveying pipe to flow, and coking caused by the fact that the oil stays in a certain area for a long time is avoided.

The present invention is a cover body configured to cover an object, including: an inner layer part disposed on a side closer to the object; an outer layer part disposed on a side further from the object; an inner-layer-side heat insulating member disposed on an outer layer part side of the inner layer part; an outer-layer-side heat insulating member disposed on an inner layer part side of the outer layer part; a heat generating element disposed between the inner-layer-side heat insulating member and the outer-layer-side heat insulating member; a sheet configured to provide a stepped part on a side further closer to the object of the inner layer part; and a thermocouple provided on a side further closer to the object of the stepped part.

The invention discloses a fireproof structure for a smoke prevention and exhaust air pipe and an installation method of the fireproof structure, and belongs to the technical field of fire fighting equipment. The fireproof structure comprises an upper fireproof plate, a lower fireproof plate and two vertical fireproof plates, and the periphery of the smoke prevention and exhaust air pipe is jointly sleeved with the upper fireproof plate, the lower fireproof plate and the two vertical fireproof plates; a water storage tank with a heat conduction function is arranged at the top end of the upper fireproof plate, the top end of the water storage tank is communicated with an air discharging pipe with an electromagnetic valve and a water adding pipe, the periphery of the middle of the water storage tank is communicated with two communicating pipes with electromagnetic valves, and one communicating pipe is communicated with a corrugated pipe. The top end of the water adding pipe, the side face of the corrugated pipe and the side face of the other communicating pipe are fixedly connected with flanges facilitating combination and connection, and the side face of the water storage tank is further communicated with a sewer pipe with an electromagnetic valve. According to the fireproof structure for the smoke prevention and exhaust air pipe and the mounting method of the fireproof structure, the good fireproof and heat insulation effects are achieved, the upper portion can be cooled, and the fireproof effect is further improved.

A thermal disinfection system, and related of method of use and manufacture, is implemented with a liquid-carrying conduit associated with a given plumbing system applicable with a given environment. The thermal disinfection system may include a heating device configured for thermal contact with at least a portion of the liquid-carrying conduit, thereby defining a thermal contact region of the liquid-carrying conduit. Additionally, a thermal insulating layer may disposed on the heating device. The heating device may be configured to heat (or heat and dry) a lumen defined by the liquid-carrying conduit along the thermal contact region (in whole or in part) to a specified temperature to prevent (e.g., suppress) or inhibit (e.g., reduce) microbial activity from advancing through the lumen defined by the liquid-carrying conduit.

The utility model discloses a pipeline anti-freezing and anti-blocking device for a device for obtaining high-purity krypton and xenon gas from liquid oxygen, and belongs to the technical field of gas purification. The anti-freezing and anti-blocking device comprises an electric tracing band, two groups of fixing frames and two groups of fixing mechanisms. The electric tracing band is wound and attached to the periphery of the pipeline through the aluminum foil band, when production is finished or paused, the pipeline is heated through the electric tracing band, and the phenomenon that the interior of the pipeline is frozen and blocked when flow is low is prevented. The two fixing frames are detachably and fixedly arranged at the two ends of the pipeline. The fixing mechanisms are detachably and oppositely installed between the two sets of fixing frames, and the fixing mechanisms are used for fixing the electric tracing band between the two sets of fixing frames, so that the electric tracing band does not loosen or fall off in the using process, and the optimal heating effect is achieved.

The present invention provides a monitoring system comprising: a sensor which is provided in a pipe for connecting a demand end and a supply end of a fluid and which collects sensing information related to the pipe; a receiving unit which is connected to the sensor and which receives sensing information from the sensor; a control unit for outputting a temperature value of the fluid by using the sensing information through calibration; a heating cable which is provided in the pipe, and which heats the pipe on the basis of the temperature value of the fluid; an HMI module, which uses a graphic model related to a pipe system including a plurality of pipes, so as to display the temperature value of the fluid and a change, due to heating, in the temperature value of the fluid; and a display for outputting the graphic model. According to the present invention, the temperature of the fluid can be controlled using the heating cable through monitoring of heat tracing based on an optical fiber sensor.

The utility model discloses an alkane storage tank precooling system which comprises a normal-temperature pressure storage tank and a low-temperature normal-pressure storage tank which are communicated through a conveying pipeline, the conveying pipeline leads to the low-temperature normal-pressure storage tank from the normal-temperature pressure storage tank, a decompression flash evaporation device is arranged on the conveying pipeline, and a tank inlet pipeline in the conveying pipeline after decompression is a precooling pipeline. A spray head is arranged at an output port of the pre-cooling pipeline and is arranged above an inner tank of the low-temperature normal-pressure storage tank. Low-temperature propane / low-temperature butane gas is not received from the transport ship to carry out gas-phase precooling on the low-temperature propane / butane normal-pressure storage tank, low-temperature liquid-phase propane / low-temperature liquid-phase butane is not output by a cabin sweeping pump to carry out liquid-phase precooling on the low-temperature propane / butane normal-pressure storage tank, and precooling of the low-temperature propane / butane normal-pressure storage tank is completed before the overseas transport ship berths. The pre-cooling process is not influenced by weather, tide and other environmental factors, and operation is more stable; the outer wheel parking cost is not generated, wharfs are not involved in the pre-cooling process, dispatching and operation are limited to a reservoir area, and if emergencies are small in wave range, processing is more timely.

The utility model discloses a water-cooling joint with a rotating structure, which relates to the technical field of water-cooling joints and comprises an inner water-cooling box. The outer side of the inner water cooling box is sleeved with an outer cooling box, the outer cooling box is connected with a corrugated hose in a matched mode, the corrugated hose extends to the inner water cooling box, and then the other end of the corrugated hose is installed on a rotating connector in a matched mode; an output pipe is further installed on the inner water cooling box in a matched mode, and the output pipe is further welded to the outer cooling box. The corrugated hose can be bent, the conveying angle can be changed, the rotary connector at the other end of the corrugated hose can rotate for conveying, use is more convenient, cold water can enter the outer cooling box, circulating water cooling can be conducted on the inner water cooling box on the inner side, and therefore materials conveyed by the inner water cooling box can be cooled, and the cooling effect is better.