810results about "Pipe heating/cooling" patented technology

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.

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.

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 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.

This invention discloses an electric heat tracing laying device and its usage method for marine fuel oil pipelines, belonging to the field of electric heat tracing technology. The electric heat tracing laying device for marine fuel oil pipelines includes a traveling frame, and further includes: a traveling assembly mounted on the traveling frame for driving the traveling frame to move axially along the pipeline; the bottom of the traveling frame has an opening for the pipeline to enter; a rotating seat rotatably mounted on the traveling frame, on which an electric heating tape shell is mounted, and the electric heating tape shell releases the electric heat tracing tape outward through a discharge port; and a driving unit mounted on the traveling frame and connected to the traveling assembly. This invention replaces manual labor with mechanical automation, realizing the entire process of spiral winding of the electric heating tape, laying of the aluminum foil tape heat-conducting layer, and segmented fixing of the pressure-sensitive tape, solving the problems of low efficiency and insecure fixing in traditional methods, and significantly improving the safety and maintenance efficiency of marine fuel oil pipelines in low-temperature environments.

A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline includes a pipeline data monitoring terminal, a current and an electric pulse control terminal, a land console, an electric heating terminal, a wiring flange, an oil and gas transportation pipeline, a valve structure. The system monitors the state of the pipeline in real time by the pipeline data monitoring terminal, and transmits the monitoring data to the current and electric pulse control terminal in real time, the current and electric pulse control terminal produces different thermal responses to the electric heating terminal according to the state in the tube, raises the temperature inside the tube by generating a continuous current, unblocks pipeline by generating high power electric pulse, so as to realize real-time monitoring and local temperature dynamic control of oil and gas transportation pipeline.

This application provides a liquid-source gas-phase transport system and method, relating to the semiconductor field. The liquid-source gas-phase transport system includes a storage device, a reaction device, and a transport pipeline. The storage device includes a container and a container heating assembly, which heats the container to vaporize the liquid raw material within it. The transport pipeline connects the container and the reaction chamber of the reaction device. The transport pipeline includes an inner tube, an outer tube sleeved around the inner tube, and a pipeline heating assembly disposed outside the outer tube. A protective gas is filled between the outer and inner tubes, and the interior of the inner tube is used to transport the gaseous raw material. The liquid-source gas-phase transport system and method provided in this application can uniformly heat the raw material, reducing the likelihood of condensation and particulate contamination. Furthermore, the liquid-source gas-phase transport system and method offer superior safety.

The utility model provides an auxiliary device for installing a pipeline in a narrow space, belongs to the technical field of building construction, and provides the following technical scheme mainly aiming at the problem that the pipeline is difficult to be heated uniformly when the existing water pipeline is heated, softened and butted. Comprising two sets of mounting frames, sliding through grooves are formed in one sides of the two sets of mounting frames, two sets of clamping jaws are slidably mounted in the two sets of sliding through grooves correspondingly, a first mounting groove is formed in the top of one set of clamping jaws, a heater is mounted in the first mounting groove, one side of the heater makes contact with a vapor chamber, and the other side of the heater makes contact with the vapor chamber. By combining the heater with the clamping jaw, the auxiliary device for installing the pipeline in the narrow space can uniformly heat and soften the water pipe, can also adapt to water pipes of different sizes, and solves the problems that when an existing water pipe is heated, it is difficult to ensure that the pipeline is uniformly heated, and the pipeline is not uniform in heating. And construction by operators is not convenient.

The utility model relates to the technical field of conveying pipeline protection, and discloses a pipeline external protection mechanism in an extreme environment, which comprises a pipeline, two groups of mounting flanges and a protection component. According to the pipeline external protection mechanism in the extreme environment, the outer side of the pipeline is sleeved with a set of sleeves, the two ends of the sleeves achieve sealing of the contact portions of the pipeline and the sleeves through sealing assemblies, temperature loss caused by air convection is reduced, meanwhile, through the multiple sets of annular pipes in the pipeline and argon filled in the annular pipes and the heat preservation cavity, the temperature loss caused by air convection is reduced; meanwhile, through supporting and shaping of the annular pipe, it is guaranteed that the whole sleeve is not prone to deformation, the annular groove formed in the outer side of the sleeve can guide rain and snow accumulated at the top end of the sleeve to flow downwards, the rain and snow are prevented from being accumulated at the top of the pipeline, and the service life of the sleeve is prolonged. And therefore, the safe use performance of the whole pipeline under extreme climate conditions is improved.

According to the technical scheme, the composite seamless nickel alloy pipe comprises an alloy pipe and a graphene heating belt, a heating groove is formed in the portion, close to the inner surface, of the interior of the alloy pipe, the graphene heating belt is installed in the heating groove, and heat preservation tinfoil is arranged on the portion, located on the outer surface of the graphene heating belt, of the interior of the heating groove. A heat preservation groove is formed in the alloy pipe close to the outer surface, a vacuum groove A is formed in the alloy pipe and located in a gap between the heating groove and the heat preservation groove, and a vacuum groove B is formed in the alloy pipe and located at the top of the vacuum groove A. The composite seamless nickel alloy pipe for petroleum transportation solves the problems that when an existing seamless steel pipe for petroleum transportation is used in a low-temperature environment, petroleum is prone to being supercooled under the influence of external cold air, the viscosity of the petroleum is increased, and the petroleum transportation efficiency is reduced, the condensation probability of the petroleum is reduced, and therefore normal transportation of the petroleum is guaranteed.

To provide a medical tube for a humidification system for respiration.SOLUTION: A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may include a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may include a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may include a connector that comprises a printed circuit board to which the one or more wires are attached. The connector may include features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.SELECTED DRAWING: Figure 1

The invention relates to the technical field of air purification, and provides a forest fresh air compression and release device which comprises a base, the top of the base is fixedly connected with an air storage tank, the top of the air storage tank is fixedly connected with a mounting frame, one end of the top of the mounting frame is fixedly provided with a compressor body, and the other end of the top of the mounting frame is fixedly provided with a motor. An output shaft of the motor is fixedly connected with a transmission belt wheel, a rotating screw of the compressor body is coaxially and fixedly connected with an inner fan impeller, an air inlet of the compressor body is fixedly connected with an air inlet pipe, the inlet end of the air inlet pipe is fixedly connected with a filter, an air outlet of the compressor body is connected with a cooling mechanism, and an air outlet of the cooling mechanism is communicated with the interior of the air storage tank. A water supply mechanism is arranged on the base. And the compressed air is cooled through the cooling mechanism, so that severe air pressure fluctuation caused by thermal expansion and cold contraction is avoided, and the air storage safety and the release uniformity are guaranteed.

An apparatus capable of heating a liquid may provide a valve assembly configured to receive an incoming liquid from a bulk source. The valve assembly may control the flow of the liquid to a source vessel via a pipe system. The pipe system includes a first pipe directly connected to the valve assembly and a second pipe downstream from the first pipe and connected between the first pipe and the source valve. The second pipe is heated with a heating system that surrounds the second pipe, and the second pipe has a larger diameter than that of the first pipe.

The utility model relates to gas conveying pipeline anti -icing heating device technical field especially relates to a kind of gas conveying pipeline anti -icing heating device.A kind of gas conveying pipeline anti -icing heating device, including gas pipe, flange, heating belt, clamping device, fixed bolt, sleeve and fixer, two gas pipes are close to the center end and are fixedly connected with flange, several heating belts are slidably contacted between the surface of two gas pipes and two flanges, clamping device is equipped in the upper and lower sides between two gas pipes, four fixed bolts are threadedly connected between two clamping devices, multiple sleeves are slidably connected in the left and right sides of two clamping devices, and each sleeve is slidably connected with fixer close to the center end.The utility model is by adopting sleeve and fixer sliding fit, and the structure of the pressure force exerted by combination telescopic spring, so that fixer can automatically compress heating belt, avoid the problem that traditional adhesive tape or metal cable tie is fixed and easy to loosen, aging, corrosion or scratch heating belt insulating layer.

The invention relates to a valve device (46a-c), in particular a drain valve device for a fuel cell system, with a supply line unit (10a-c) which is formed at least partially, in particular largely, from a material that conducts heat well, in particular metallic, and which forms at least partially, in particular largely, a valve inlet channel (14a-c) which can be selectively closed by actuating a valve element (12a-c) and is provided for skimming off liquids, in particular water from a water separator of the fuel cell system, and with at least one heating unit (16a-c) which is at least partially integrated into the supply line unit (10a-c) and which is provided for heating at least one channel wall (18a-c) of the valve inlet channel (14a-c). It is proposed that the valve device (46a-c) has a casing unit (20a-c) which surrounds at least a large part of the supply unit (10a-c) at least in the circumferential direction and which is made of a material, in particular a plastic, which has a significantly lower thermal conductivity than the highly thermally conductive material of the supply unit (10a-c).

The application relates to a multi-stage electric heating intelligent unblocking device and method for complex frozen blockage of a CO2 flooding waxy crude oil gathering pipeline, wherein the multi-stage electric heating intelligent unblocking device for complex frozen blockage of the CO2 flooding waxy crude oil gathering pipeline comprises a dredging system, an outer framework and an intelligent control system; the outer framework is a bionic flexible guide pipe which is composed of multiple body segment units connected through expansion joints; the dredging system integrates a first-stage global heating system, a second-stage local heating system and a dosing system; a flexible electric heating pipe is embedded in the bionic flexible guide pipe to form a uniform heating body; the bionic flexible guide pipe is provided with a temperature sensor; the second-stage local heating system is an intelligent composite drill bit which can autonomously heat; the intelligent composite drill bit comprises a motor system, a drill bit shell, an electric heating rod, a drill bit and a miniature night vision camera; the dosing system comprises an inhibitor storage tank and multiple nozzles. The application can quickly break the frozen blockage area and realize intelligent operation.

The application belongs to the technical field of control system, and particularly relates to a composite heating method and system for starting and running of a molten salt pipeline, which comprises a resistance electric heat tracing band evenly laid along the outer wall of a pipeline to be heated, and an electromagnetic induction heat tracing device arranged on a set pipe section of the outer wall of the pipeline at a specific interval; when the pipeline is in an empty pipe state, the resistance electric heat tracing band is started, and the whole pipeline is heated to a first preset temperature higher than a solidification point of molten salt according to a pipe wall temperature; when the whole pipeline temperature reaches the first preset temperature and is maintained for a set time, and the temperature field stability condition and the heat preservation duration condition are met, molten salt is injected into the pipeline, then the resistance electric heat tracing band is turned off, and the electromagnetic induction heat tracing device is started; at this time, the molten salt medium temperature at the outlet of the pipeline is taken as a control target, and the temperature of the molten salt in the pipeline is maintained at a higher second preset temperature by independently adjusting the power of each distributed electromagnetic induction heat tracing device. Through coupling of the heating mode and the medium state, a balance is achieved among safety, energy consumption and temperature control.

The utility model discloses pipeline anti-freezing central water purification equipment with a solar heat tracing band, which comprises an equipment main body, and a water inlet, a raw water tank, a pretreatment system, a membrane filtration system, a water purification tank, a water supply pipe network and a water outlet are arranged in the equipment main body. The water supply pipe network is composed of a water supply pipeline, a temperature sensor and a pipeline heat preservation device. A heat tracing band and a power supply system are arranged in the pipeline heat preservation device, and the power supply system is composed of a solar cell panel, a photovoltaic controller, a storage battery, an AC / DC converter, a mains supply and an inverter. Solar energy can be preferentially used for supplying power to the heat tracing band in the pipeline heat preservation device, meanwhile, the mains supply is adopted as an emergency power supply, and when solar energy is insufficient, the mains supply is switched to supply power to the heat tracing band. The system not only reduces the electric power cost, but also realizes the utilization of clean energy, promotes the development of the energy-saving and environment-friendly cause in China, and promotes the construction of a resource-saving and environment-friendly society.

The invention discloses a heat preservation and deicing device for a diffusion system in the power generation industry and a using method thereof.The heat preservation and deicing device comprises a mounting plate, fixing plates are fixedly connected to the front end and the rear end of the top of the mounting plate correspondingly, two-way screws are rotationally connected between the front fixing plate and the rear fixing plate correspondingly, and threaded plates are in threaded connection to the front sides and the rear sides of the peripheries of the two-way screws correspondingly; clamping blocks are fixedly connected to the tops of the threaded plates, electric heating plates are arranged on the side walls, close to each other, of the front clamping block and the rear clamping block, and connecting plates are fixedly connected to the middles between the adjacent clamping blocks on the left side and the right side. According to the heat preservation and deicing device for the diffusing system in the power generation industry and the use method of the heat preservation and deicing device, when a diffusing pipe needs to be subjected to deicing treatment, a mounting plate is moved to a deicing position to enable the diffusing pipe to be located between two sets of clamping blocks, and then a crank is rotated to enable two-way screws on the two sides to rotate; in the rotating process of the two-way screw, the threaded plates on the two sides are close to the clamping blocks, the deicing mechanism is installed after the electric heating plate is attached to the outer wall of the bleeder, and the installation difficulty of the deicing mechanism is lowered.

The utility model relates to the technical field of pipelines, and discloses a winter pipeline emergency auxiliary heating mechanism which comprises a first protective cover and a second protective cover, a pipeline body is arranged between the first protective cover and the second protective cover, and a positioning block is fixedly installed on the outer surface of the pipeline body. Positioning grooves are formed in the faces, close to the pipeline body, of the first protective cover and the second protective cover. According to the emergency auxiliary heating mechanism for the pipeline in winter, through the design of the sealing ring, in rainy days, rainwater is prevented from making contact with an electric tracing band through a connecting gap between the first protective cover and the second protective cover, the electric tracing band is prevented from being damaged, normal use is affected, a certain heat preservation effect is achieved, in winter, heat loss is reduced, the sealing performance is high, and the service life is long. Through the design of the three sealing rings, the overall sealing performance is further improved, through the design of the heat preservation cotton, in winter, heat loss of the heated pipeline body is reduced, and the heat preservation and energy saving effects are achieved.

The invention relates to the technical field of nuclear facility pipeline heating. The invention provides a pipeline heating device and an in-reactor test facility. The pipeline heating device comprises a magnetic conduction layer, a heat conduction layer, a heat preservation layer and an electromagnetic induction coil, the magnetic conduction layer is made of a magnetic alloy material, and the magnetic conduction layer is enclosed and internally forms a heating area used for containing a pipeline; the heat conduction layer is located on the side, facing the heating area, of the magnetic conduction layer and used for transmitting heat of the magnetic conduction layer to the pipeline. The heat preservation layer wraps the side, away from the heating area, of the magnetic conduction layer. The electromagnetic induction coil is wound around the side, away from the heating area, of the heat preservation layer. The magnetic conductive layer made of the magnetic alloy material serves as a main absorption and conversion carrier of magnetic field energy, the eddy current effect can be remarkably enhanced, the problem that the heating efficiency is insufficient due to low magnetic conductivity of the austenitic stainless steel pipeline is solved, and the heating efficiency is greatly improved. The arrangement of the magnetic conductive layer can fundamentally avoid material microscopic damage caused by direct action of a magnetic field, and the safety is higher.

The utility model provides a protection type safety pipeline heating device which comprises two arc-shaped connecting covers, the two connecting covers are in butt joint and fixed to form a tubular structure, each connecting cover comprises an arc-shaped connecting plate and an arc-shaped cover plate arranged on the outer side of the connecting plate, a heating bin is arranged between the connecting plate and the cover plate, and a heating pipe is arranged in the heating bin. The pipeline heating device has the advantages that the two connecting covers are in butt joint together to form a tubular structure, the pipeline is wrapped in the tubular structure, heating is conducted through the heating pipes in the connecting covers, it is guaranteed that flowing materials in the pipeline cannot be solidified, the temperature of the heating pipes can be set according to the melting point of the conveyed materials, and the temperature can be conveniently adjusted and controlled.

The application discloses a kind of hydrogen station gas pressurization process temperature comprehensive management system and method, it is related to new energy technology field, hydrogen station gas pressurization process temperature comprehensive management system includes the data acquisition unit for gathering compressor temperature information and gas pressure information, data storage unit for storing gas reference temperature and various correlation, data processing unit for receiving and processing various gas information and heat exchange regulating component for adjusting gas temperature before and after compression, by setting the temperature adjusting device of two places of inlet gas, outlet gas, double regulation control is carried out to gas temperature, by collecting the temperature, pressure and other signals of gas, comprehensive control two temperature adjusting devices, the accurate control of gas temperature after compression is realized, by hydrogen station gas pressurization process temperature comprehensive management method, in the harsh use scene of different external environment temperature, temperature difference is larger, can output constant reference temperature, reference pressure compressed gas, increase the environmental adaptability of compressor.

The utility model discloses a safe pressurization system for air-light hydrocarbon mixed fuel gas. The device at least comprises a fuel gas buffer tank and a gas storage tank, the buffer tank is used for buffering the air-light hydrocarbon mixed gas; a primary compressor; the pressurizing device is used for pressurizing the fuel gas output by the fuel gas buffer tank to 0.15 MPa; the first-stage cooler is used for cooling the fuel gas output by the first-stage compressor for the first time; the secondary cooler is used for cooling the fuel gas again; and the second-stage compressor is used for pressurizing the fuel gas cooled by the first-stage cooler to 0.3 MPa. By means of two-stage pressurization and two-stage cooling, pressurization safety control of large-flow 6000 Nm < 3 > / h pentane air-mixed fuel gas is well achieved.

The invention discloses a liquid oxygen circulation supercooling system, and relates to the technical field of liquid oxygen storage management, liquid oxygen is stored in a liquid oxygen storage tank, the liquid oxygen enters a self-pressurization vaporizer from a vaporization liquid inlet pipe to be vaporized, oxygen generated by vaporization enters the liquid oxygen storage tank from a vaporization steam exhaust pipe, so that the pressure in the liquid oxygen storage tank is increased, and the liquid oxygen is discharged into a pipe needing to be cooled after being increased; the supercooling process is realized when the liquid oxygen in the pipe needing to be cooled flows through the cooler, and the liquid oxygen flows back to the liquid oxygen storage tank again after being supercooled; the device is applied before a launching task starts, liquid oxygen in the liquid oxygen storage tank is supercooled through continuous liquid oxygen circulating flow, compared with supercooling when liquid oxygen is injected into a rocket, supercooling is conducted in advance in the storage stage, injection peak flow does not need to be matched, the size of the device is smaller, and the manufacturing cost is lower.

The invention relates to the technical field of train pipeline anti-freezing assemblies, and discloses a plateau train pipeline anti-freezing and cold-resistant device which comprises a pipeline body, a protection assembly is fixedly connected to the center of the pipeline body, jackets are fixedly connected to the left side and the right side of the protection assembly correspondingly, and the pipeline body is arranged in the jackets; movable plates are movably connected to the top side and the bottom side of the interior of the pipeline body, the ends, close to the symmetrical faces of the movable plates, of the movable plates are arc-shaped, a phase-change material is loaded between the two movable plates, the phase-change material is particularly an eutectic mixture, and the phase-change temperature of the eutectic mixture is 3-5 DEG C. Sealing rings are movably connected to the left side and the right side of the clamping sleeve correspondingly. An auxiliary assembly is fixedly connected to the rear end of the protection assembly, a mounting plate is fixedly connected to the center of the interior of the auxiliary assembly, two connecting bases are fixedly connected to the rear sides of the top and the bottom of the auxiliary assembly correspondingly, and the device has the advantages that the heat preservation effect of the device on a pipeline during heat tracing cable maintenance is improved, and a user can use the device conveniently.

The utility model relates to the technical field of pipelines, and provides a liquid lead conveying pipe which comprises a pipeline body, a protective shell and an electromagnetic induction coil, the pipeline body is arranged in the protective shell, the two ends of the pipeline body penetrate out of the protective shell, a heat preservation layer is arranged outside the pipeline body, and the electromagnetic induction coil is arranged in the protective shell. And the electromagnetic induction coil is wound on the thermal insulation layer. The pipeline body is heated in an electromagnetic heating mode, accurate control over the heating temperature can be achieved, the liquidity and temperature stability of lead liquid are guaranteed through online heating of the pipeline body, the production efficiency is improved, heat loss can be reduced through the arrangement of the heat preservation layer, and the heating efficiency is improved; and the electromagnetic induction coil and the pipeline body can be protected through the arrangement of the protective shell, and therefore the service life of the electromagnetic induction coil and the service life of the pipeline body can be prolonged.

The invention relates to a process for removing an obstruction (13) caused by gas hydrates or water ice from the tubing (12) of a hydrocarbon production or injection well or a riser. The process comprises passing a microwave generating and emitting tool (5) on wireline (8) down the tubing (12) and supplying electrical power to the tool via the wireline (8) or from a battery to produce microwave energy and direct it to the gas hydrate and / or water ice deposit (13), thereby melting deposit and unblocking the well.

Provided is a heater device that covers and heats an object to be heated, the heater device having a more durable lead-out part where lead wires and / or the like of a heating element are led out of the device. This heater device covers and heats an object to be heated by means of a heater body having at least an inner skin material in contact with the object to be heated, an outer skin material, and a heating element surrounded by the inner skin material and the outer skin material. The heater device is characterized in that the heating element has a heater wire that generates heat when energized and a plurality of insulator-covered lead wires that are connected to the heater wire and supply power, a reinforcing sheet is secured to a lead-out part of the outer skin material where the plurality of lead wires are led out to the outside, and the plurality of lead wires are led out to the outside by passing through the outer skin material and the reinforcing sheet.