293 results about "Condenser (heat transfer)" patented technology

The invention discloses a microchannel condenser flow distribution global simulation method and system, and relates to the field of microchannel condenser flow distribution calculation. The method comprises the following steps: firstly, constructing a heat transfer and resistance model and forming a single-channel model by combining the size and structure of a parallel channel of the condenser and working medium flow heat exchange characteristics, and constructing a shunting and converging numerical model according to an inlet and outlet area structure of the condenser; secondly, numerical simulation is conducted on the division and convergence numerical model, and stable initial field distribution is obtained; then, determining the mass flow rate of each channel based on the shunting initial field, calculating the back pressure of the channel by taking the mass flow rate as the inlet boundary condition of a confluence model, calculating the inlet pressure of the channel through a single-channel model, and updating the outlet boundary of the shunting model; and finally, iterating the process until the channel mass flow error is smaller than a limit value, obtaining the distribution of the sub-confluence three-dimensional physical field and the one-dimensional flow heat exchange parameters and the heat exchange amount of the parallel channels, and checking whether the heat exchange amount meets the design requirements or not. The method gives consideration to calculation efficiency and precision, can provide support for structure optimization of the micro-channel condenser, and is suitable for micro-channel condenser design in the fields of refrigeration equipment, air conditioning systems and the like.

The invention relates to the technical field of thermal power generation, in particular to a direct air cooling condenser fouling thermal resistance estimation method combined with a scaling mechanism, and aims to realize stable and accurate real-time estimation of the fouling thermal resistance of a condenser. The method includes the steps that operation parameters of the direct air cooling unit are collected and preprocessed to form a continuous time sequence; calculating multiple groups of cleaning total heat transfer coefficients based on the cleaning period operation parameters, training a machine learning model based on the cleaning total heat transfer coefficients, and establishing a cleaning heat transfer coefficient reference model; calculating an actual total heat transfer coefficient based on the current operation parameters, inputting the reference model to obtain a corresponding cleaning coefficient, and calculating initial fouling thermal resistance according to the cleaning coefficient; and establishing a discrete linear recursion physical filtering model based on a dirt deposition-denudation mechanism, identifying model parameters on line by taking the initial dirt thermal resistance as an observed quantity, performing physical constraint filtering on the model parameters, and outputting a final dirt thermal resistance online estimated value.

The invention relates to a process for extracting alcohols from an initial mixture (1) comprising alcohols in aqueous phase, with:a distillative separation by an isopropanol-butanol distillation column (III) equipped at the top with a condenser (c3), intended for separating said mixture into a water-isopropanol azeotrope stream (6) at the top and into a water-butanol azeotrope stream (7) at the bottom,a distillative separation intended for separating the water-butanol azeotrope stream into water and butanol, by a hetero-azeotropic distillation system comprising at least one water-recovering water column (IV) and at least one butanol (9)-recovering butanol column (V) equipped with a reboiler (r5),such that a heat transfer is performed from the top water-isopropanol azeotrope stream (6) entering the condenser of the isopropanol-butanol distillation column (III), to the stream entering the reboiler of the butanol column (V).

Provided are an air separation device and an air separation method that have high argon yield without increasing the heat transfer area of a deoxidized argon condenser that generates reflux liquid in an argon tower generating deoxidized argon to be used as a raw material in a high-purity argon tower. Specifically provided is an air separation device comprising: an argon tower (700) that distills argon-containing oxygen drawn from a low-pressure tower (600) and generates deoxidized argon from which oxygen has been removed; a deoxidized argon condenser (400) that generates reflux liquid in the argon tower (700); a high-purity argon tower (800) that distills deoxidized argon and extracts pure argon from which nitrogen has been removed; a high-purity argon condenser (900) that generates reflux liquid for the top portion of the high-purity argon tower (800); a high-purity argon evaporator (910) that generates ascending gas for the bottom portion of the high-purity argon tower (800); a pipeline (622) that sends liquid nitrogen to the high-purity argon condenser (900) as a cooling medium; and a pipeline (42) that sends liquid derived from a high-pressure tower (500) to the high-purity argon evaporator (910) as a heating medium.

The invention discloses an evaporator and cold drink equipment, the evaporator comprises an evaporation cylinder, an air return pipe and a communicating pipe, the air return pipe and the communicating pipe are communicated with the evaporation cylinder, an evaporation cavity is arranged in the evaporation cylinder, the air return pipe is communicated with an external compressor, an air return section of the air return pipe is connected with the evaporation cylinder and is communicated with the evaporation cavity, and the communicating pipe is communicated with the communicating pipe. The communicating pipe is communicated with an external condenser or a throttling component, a spraying section of the communicating pipe is connected with the air return section and communicated with the evaporation cavity, an oil return part is arranged in the evaporation barrel, the outlet end of the oil return part can be communicated with the air return section, the inlet end of the oil return part is close to the inner side wall of the evaporation barrel, and the oil return part is communicated with the oil return part. And the oil return piece can rotate along with the evaporation cylinder. The cold drink equipment comprises the evaporator. By adopting the oil return device, oil can be effectively returned, and the oil return efficiency is improved, so that the normal operation of the compressor and the heat transfer efficiency of the evaporator are ensured, and the external space of the evaporator is not occupied.

The invention relates to a liquid cooling heat dissipation system based on double-circulation dynamic switching and a control method, and belongs to the technical field of data center heat dissipation. The liquid cooling heat dissipation system comprises a server cabinet, an indoor CDU and an outdoor heat dissipation unit; the outdoor composite heat dissipation unit comprises a multi-channel condenser; the multi-channel condenser is provided with a plurality of independent flow channels, and the independent flow channels are opened or closed according to different temperatures. According to the invention, through innovative pipeline architecture and thermal path design, collaborative optimization of heat dissipation efficiency and space utilization rate of the high-density data cabinet is realized. The system adopts a graded tandem type heat transfer mode, chip-level high-heat-flux heat dissipation and cabinet-level low-grade waste heat recovery are integrated into the same circulating system, meanwhile, the heat dissipation requirements of different seasons and external temperatures are met through dynamic flow path switching of an outdoor module, the energy efficiency is remarkably improved, and equipment redundancy is reduced.

The invention relates to the technical field of heat exchangers, and discloses a shell-and-tube condenser capable of automatically removing a liquid film, which comprises a shell, one end of the shell is provided with a cold water inlet, the other end of the shell is provided with a cold water outlet, the upper end of the shell is provided with an air inlet, and the lower end of the shell is connected with a liquid outlet pipe; a plurality of air uniformizing holes are formed in the air uniformizing cover, the air uniformizing cover divides an inner cavity of the shell into a first cavity body and a second cavity body, a second finned tube is arranged in the first cavity body, a first finned tube is arranged in the second cavity body, and liquid guide fins are arranged on the outer wall of the first finned tube. The finned tube I is arranged, and the liquid guide fins are additionally arranged on the finned tube I, so that the continuity of a liquid film is actively destroyed, the liquid film does not accumulate and grow outside the tube, but accumulates in the liquid guide fins to drop in a liquid drop form, and the problem of thermal resistance caused by liquid film coverage is effectively solved; and the heat transfer efficiency of the whole equipment is obviously improved.

A thermal management system for electric construction machinery, the thermal management system comprising a battery pack (1), a first liquid storage tank (2), a first liquid pump (3), a plurality of first air-conditioning units (4) arranged in parallel, a heat dissipation group (5) and a first controller (6), wherein the battery pack provides a driving force; the first liquid storage tank stores a circulating medium; the first liquid pump is in communication with the first liquid storage tank; the first liquid pump is connected to the battery pack to form a first circulating loop (100); the first liquid pump drives the circulating medium to flow through the battery pack, such that the circulating medium exchanges heat with the battery pack; each first air-conditioning unit comprises a compressor (41), a condenser (42), a first throttling device (43) and a first evaporator (44), and the first air-conditioning units reduce the temperature of the circulating medium in the first circulating loop; the heat dissipation group dissipates heat from the condensers in the first air-conditioning units and / or reduces the temperature of the circulating medium flowing through the battery pack; and the first controller controls, on the basis of the temperature of the battery pack, the plurality of first air-conditioning units and the heat dissipation group to start and stop. The thermal management system effectively reduces the number of heat dissipation groups, thereby facilitating an improvement in the heat transfer efficiency of the system, and improving the energy consumption of a whole vehicle. In addition, further disclosed are a control method and electric construction machinery.

The invention discloses a water chilling unit multi-component coupling modeling and dynamic simulation method based on Simscape, and belongs to the technical field of heating ventilation air conditioners, multi-physical field simulation models of a compressor, a condenser, an evaporator and a thermostatic expansion valve are constructed in a modular mode, and four main stages are achieved in a system level. State evolution and thermal conversion of compression, condensation, throttling and evaporation; the modeling process is combined with thermodynamics, fluid mechanics and heat transfer theory principles, and adjustable modeling is carried out on internal thermophysical property equations, structural parameters and flow boundaries of all assemblies by utilizing a Matlab / Simscape language, so that a complete closed-loop dynamic simulation system is formed. By adopting the Simscape-based multi-component coupling modeling and dynamic simulation method for the water chilling unit, the integration of component-level modeling, system-level coupling, adjustable parameter setting and simulation checking can be realized, and the accuracy, universality and engineering adaptability of the model are improved.

Thermodynamic water heater and water heating method implementing it The invention relates to a thermodynamic water heater (1) comprising a heating device (2) and a tank (3) with a container (3') for the water to be heated / heated, the tank (3) also comprising a condenser circuit (4) supplied by the heating device (2) forming a closed loop of heat transfer fluid circulation, and with an upper inlet end (4') and a lower outlet end (4'').A water heater characterized in that said condenser circuit (4) comprises a main hot heat transfer fluid supply inlet (5) and another secondary hot heat transfer fluid supply inlet (51), said secondary supply inlet (51) corresponding to an intermediate connection point (PR) of said condenser circuit (4), located between its upper inlet end (4') and its lower outlet end (4'') and defining two portions of the condenser circuit (4) corresponding respectively to two superimposed volumetric zones (Z1 and Z2) within the internal volume of the container (3'), and in that each of the hot heat transfer fluid supply lines (6, 61) connecting the heating device (2) to the supply inlets (5, 51) comprises a control valve (7, 71). Figure to be published with the abbreviation: Fig. 1.

The present application relates to the field of new energy vehicle thermal management technology, provide a kind of heat management system of waste heat utilization, including waste heat source, first heat exchanger, condenser and evaporator, first heat exchanger is connected with waste heat source, for absorbing the heat transferred by waste heat source;Condenser and first heat exchanger are connected with first injection line and second injection line in parallel, first injection line is provided with first injector, and second injection line is provided with second injector;Evaporator and condenser are connected with heat absorption line, for absorbing the heat of evaporator, and heat recovery line is arranged between evaporator and condenser, for returning the heat of evaporator to condenser;The heat management system provided by the present application utilizes double-injector coupling to carry out the heat conversion of waste heat, converts thermal energy into kinetic energy, improves refrigeration effect, and realizes the step-by-step utilization of energy.

The utility model discloses large-capacity plastic garbage pyrolysis equipment, and relates to the technical field of garbage recovery and treatment equipment. The plastic garbage pyrolysis equipment comprises a feeding bin, a pyrolysis pipe, a gas-solid separation bin, a slag bin, a condenser, an oil-water separator and a steam generator, the pyrolysis pipe is provided with a garbage input end, a steam input end and a pyrolysis material output end. According to the plastic garbage pyrolysis equipment disclosed by the utility model, garbage is directly blown through high-temperature steam, so that the heat transfer efficiency is greatly improved, the pyrolysis speed is greatly accelerated, high-speed large-capacity garbage treatment can be realized, and the problems of low treatment capacity and low heat efficiency of the existing garbage pyrolysis equipment are solved; and the pyrolysis pipe is adopted for pyrolysis, and the inner wall of the pyrolysis pipe is difficult to form wall adhesion and coking under strong blowing of steam and oil gas, so that the problem that the existing garbage pyrolysis equipment is easy to adhere to the wall is solved.

A climate-controlled transport unit's transport climate control system includes a main heat transfer circuit and a cooler heat transfer circuit. The main heat transfer circuit includes a compressor, a condenser, a main expansion valve, a main evaporator, a cooler expansion valve, and a cooler evaporator. The main evaporator and the cooler evaporator are arranged parallel to each other downstream of the condenser. A working fluid and a second process fluid flow through the main evaporator. The working fluid and a third process fluid flow through the cooler evaporator. The cooler heat transfer circuit includes the cooler evaporator, and the third process fluid is configured to provide auxiliary cooling. Methods of operating the climate-controlled transport unit's transport climate control system include operating in HVACR and cooler mode, operating in HVACR mode, and operating in cooler mode.

A refrigeration cycle apparatus includes a refrigerant circuit in which at least a compressor, a condenser, a first pressure reducer, and an evaporator are connected by pipes. The condenser includes a plurality of heat transfer tubes extending in an up-and-down direction, a first header having a tubular outer wall into which first ends of the plurality of heat transfer tubes are inserted, and a partition plate that is provided from a first end to a second end of the first header in a longitudinal direction, partitions an internal space of the first header into a high-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are disposed and a low-pressure refrigerant passage where the first ends of the plurality of heat transfer tubes are not disposed, and is configured to exchange heat between high-pressure refrigerant and low-pressure refrigerant in the first header.

Safety container cooling system (10) comprising a sealed safety container (12) of a nuclear facility, - with a heat exchanger for heat transfer between a medium to be cooled and a cooling medium, - with first means to extract the medium to be cooled from the safety vessel (12) in a first cooling circuit and supply it to the heat exchanger and, after it has flowed through the heat exchanger, return it to the safety vessel (12), wherein the first means comprise a first pumping device (38) to pump the medium, now cooled by the heat exchanger, back into the safety vessel (12), - with second means to supply the recoolant from a coolant reservoir to the heat exchanger and to return it to the coolant reservoir after it has passed through the heat exchanger, wherein the second means comprise a second pumping device located outside the safety vessel (12) to set the recoolant in motion, wherein the second means comprise a turbine (40) which is driven by the flow of the cooling medium, wherein the first pump device (38) is coupled to the turbine (40) in such a way that it is driven by it, characterized by the fact that the first pumping device (38) and the turbine (40) are arranged outside the safety container (12), that the heat exchanger is a condenser (30) arranged outside the safety container (12), that the first means have a withdrawal device (24) in the safety container (12) for withdrawing the medium to be cooled from the safety container (12), which has a steam component and an air component, and at least the steam component is directed to the condenser (30), that the steam component is condensed to water by the condenser (30), that the water is pumped back into the safety container (12) as a cooled medium by the first pumping device (38).

The invention discloses a condenser heat transfer tube fatigue behavior analysis method and device, and the method comprises the steps: constructing a three-dimensional geometric model of a condenser heat transfer tube, and carrying out the bidirectional fluid-solid coupling analysis, and obtaining time-varying stress-strain time history data; determining a fatigue type of the stress concentration area based on the time-varying stress-strain time history data, and extracting a fatigue parameter according to the fatigue type; carrying out crack source positioning based on the fatigue parameters, determining a crack propagation starting point and carrying out crack propagation simulation to obtain a crack propagation increment and a crack propagation direction; performing crack path tracking based on the starting point, the crack propagation increment and the crack propagation direction to obtain a crack morphology; performing crack initiation life prediction and crack propagation life prediction based on the crack morphology to obtain the crack initiation life and the crack propagation life; and evaluating the fatigue behavior of the heat transfer tube according to the crack initiation life and the crack propagation life. The accuracy of fatigue life evaluation can be remarkably improved, and the fatigue behavior of the condenser heat transfer tube can be accurately identified.

The utility model relates to the technical field of condenser equipment, and discloses an efficient heat exchange device of a condenser of a rectifying tower, which comprises a condensing shell, a plurality of spiral heat exchange pipes are assembled in the condensing shell, a steam inlet is arranged on one side of the top of the condensing shell, an exhaust pipe is arranged on the other side of the top of the condensing shell, and a steam outlet is arranged on the other side of the top of the condensing shell. A filtering assembly is mounted at the top of the exhaust pipe and is used for discharging and filtering non-condensable harmful gas; the filter assembly comprises an activated carbon filter cylinder and a mounting cylinder, and the activated carbon filter cylinder is located in the mounting cylinder. According to the heat exchanger, the design that the multiple layers of spiral coils are matched with the spoilers is adopted, the contact area of steam and cooling media is increased, and the heat exchange efficiency is improved. The special coating on the surface of the coil accelerates discharge of condensate, and heat exchange is prevented from being affected by accumulated liquid. And the temperature control device adjusts the cooling water flow in real time. And the filtering assembly can effectively remove non-condensable toxic gas.

The present application discloses a kind of sewage pipe network dredging sludge treatment device, and the present application relates to sludge treatment technical field.The sewage pipe network dredging sludge treatment device, by being provided with first processing box, first motor, heating wire stirring shaft, scraper and stirring rod, the function of treating sludge is realized, heating wire in first processing box directly heats sludge, cooperates with the continuous overturning of stirring shaft and stirring rod, effectively prevent sludge accumulation and caking, improve drying uniformity, scraper rotates with stirring shaft, real-time remove the sludge adhered to the inner wall of box, avoid long-term scale influence heat transfer efficiency;By being provided with second processing box, first connecting pipe, condenser pipe, activated carbon plate and drying plate, the function of treating water vapor and gas generated in drying process is realized, after gas is condensed, residual moisture is absorbed by drying plate, ensure that emission gas is dry, activated carbon plate absorbs hydrogen sulfide, ammonia and other odor components in gas, avoid secondary pollution.

The utility model provides an improved efficient cooling device of a screw compressor, which relates to the technical field of screw compressors and comprises a filtering mechanism, the top of the filtering mechanism is fixedly connected with a collecting mechanism, the filtering mechanism comprises a bottom plate, and the top of the bottom plate is fixedly connected with a screw compressor main body. A connecting pipe is fixedly connected to one side of the outer wall of the screw compressor body, a condenser is fixedly connected to one end of the connecting pipe, a supporting frame is fixedly connected to the top of the bottom plate, a shell is arranged on the inner surface wall of the supporting frame, two nanofiltration membranes are arranged on the inner surface wall of the shell, and a sealing cover is movably connected to the top of the shell. The top of the sealing cover is fixedly connected with a first water conveying pipe. According to the mechanism, cooling water is filtered, the quality of the cooling water is improved, the hardness and impurities are reduced, a nanofiltration membrane can be replaced, water scale in a cooling system is reduced, the heat transfer efficiency is improved, and the cooling effect is better.

The utility model provides a horizontal condenser for producing ethylene carbonate, which relates to the technical field of horizontal condensers and comprises a condensing tank and an air inlet component, the air inlet component comprises an air inlet pipe fixedly connected onto the condensing tank, a flow shielding ring is fixedly connected inside the air inlet pipe, and a shielding opening is formed inside the flow shielding ring; the turbulent flow assembly comprises a front-side turbulent flow plate fixedly connected to the interior of the condensation tank, and a rear-side turbulent flow plate is fixedly connected to the end, away from the front-side turbulent flow plate, of the interior of the front-side turbulent flow plate; a liquid phase equilibrium assembly; according to the design, the conical shielding opening is matched with the spoiler, high-speed jet flow at an inlet is converted into low-speed uniform flow, local scouring and short circuit are avoided, the gas-liquid contact efficiency is improved, the turbulence degree is increased through the S-shaped flow channel, the liquid film thickness is reduced, the heat transfer coefficient is increased, and the condensation efficiency is remarkably improved. And finally, the liquid phase balance assembly ensures that the condensate is discharged in time through height difference drainage and pressure balance design, and heat exchange is prevented from being affected by accumulated liquid.

The application relates to a new energy automobile "three-electricity" thermal control system based on a loop heat pipe in the technical field of new energy automobile thermal management, which comprises three-electricity components and a loop heat pipe; the three-electricity components comprise an electric drive, an electric control and a battery pack; the loop heat pipe comprises an evaporator assembly, a main condenser, a secondary condenser, a cold plate assembly, a pipeline system and a stop valve; the cold plate assembly comprises an electric control cold plate group and a battery pack cold plate group. The loop heat pipe in the application forms a self-adapting passive phase change heat transfer two-phase fluid loop in the three-electricity components, does not need to provide additional power consumption by a pump, has better energy-saving effect, only needs to control the temperature of a liquid accumulator, and has simple control logic; the system thermal resistance is small, and the temperature uniformity can be guaranteed to be within 1 DEG C.

This invention discloses a dual-cycle, installation-free, energy-saving air conditioner that recovers waste heat for refrigeration, belonging to the field of air conditioning and refrigeration technology. It incorporates a compression refrigeration system and an adsorption refrigeration system within the casing. A sealed phase-change heat transfer coupler is fitted onto the outer wall of the compressor's high-pressure pipe. The inner sleeve of the coupler, along with the outer sleeve wound around the generator's outer wall, forms a vacuum phase-change loop via a steam riser and a liquid return pipe, transferring compressed waste heat across the system to the generator. A double-layer jacket for condensation heat recovery is fitted onto the outer wall of the second condenser, connected to an auxiliary heating coil via an electronic flow control valve, an intermediate heat exchanger, and a circulating pump. This auxiliary heating coil, alternately wound around the generator with the outer sleeve, forms a dual heat source compensation. The insulation box is divided into a desorption chamber and a cold air chamber. Cold air from the cold air chamber is guided to the compressor and the second condenser for secondary cooling via an electric air valve and a duct. The control unit coordinates and regulates each actuator based on multiple temperature thresholds. This invention achieves dynamic coupling of dual-cycle waste heat recovery and cold source reuse, eliminating the need for an outdoor unit and improving the overall system energy efficiency.

A refrigeration cycle is connected to a supercritical carbon dioxide (sCO2) power cycle by incorporating a CO2 condenser which is also the refrigeration cycle evaporator. The heat rejected by the carbon dioxide is absorbed by the refrigerant in the CO2 condenser. Work is done on the refrigerant to raise its temperature above the local ambient temperature. The heat absorbed from the power cycle and the work required to raise the refrigerant temperature is rejected to the ambient environment, which may be either air, earth, or water. This results in improved efficiencies in carbon dioxide power cycles without regard to the ambient temperature by forcing a transcritical phase change even when ambient temperatures are above the carbon dioxide critical point. A two-phase heat transfer on both sides of the CO2 condenser further improves efficiency of the sCO2 power cycle.

The application discloses a solar energy, air energy and phase change energy storage coupled heat pump unit which comprises a heat supply pipeline, a circulating heating mechanism and an integrated evaporator, a compressor, a condenser and an expansion valve which are sequentially installed on the heat supply pipeline; the integrated evaporator comprises an insulation shell, a heat absorption glass plate, a lower header tank, an upper header tank and an energy storage heat collecting pipe; the energy storage heat collecting pipe comprises a heat collecting sleeve pipe, an inner heat transfer pipe, a water inlet ring pipe, an upper sealing piston, a lower sealing piston and a limiting piece; air inlets are formed in opposite two side walls of the insulation shell; and the circulating heating mechanism comprises a circulating return pipe, a circulating water supply pipe, a heating water tank and a circulating pump. The heat energy is extracted from the solar energy, the air energy and the phase change energy storage, and is coupled with a water source heat energy unit to provide heating for buildings, so that the sustainable development of energy can be realized; when the water in the heat collecting sleeve pipe is completely frozen, the ice in the heat collecting sleeve pipe is discharged from the heat collecting sleeve pipe, so that the ice melting energy consumption can be reduced, and the subsequent rapid heating for the heat user is facilitated.

Disclosed herein is a heat transfer apparatus comprising a heat absorbing panel having first and second main faces containing plural passages for conveying a working fluid in both liquid and gaseous states around an interior portion of the panel, wherein the first main face is opposite the second main face and the first main face is configured to contact a body to be cooled; a condenser in fluid communication with the heat-absorbing panel, wherein the heat absorbing panel and the condenser form a hermetically sealed system configured to allow the working fluid to circulate between the heat-absorbing panel and the condenser without a compressor; and a chimney, comprising a lower opening, an upper opening, and an air channel extending from the lower opening to the upper opening; wherein the apparatus is configured such that the condenser is disposed within the air channel.

This utility model relates to the field of lubricating oil processing technology, specifically to a lubricating oil hydrorefining device. It includes a tank containing a heating component. A circulation component is connected to the lower end of the tank, allowing the lubricating oil in the lower part of the tank to circulate through the heating component. Above the heating component, the tank contains, from bottom to top, a hydrodemetallizing agent chamber, a hydroprotecting agent chamber, and an adsorbent chamber. Above the adsorbent chamber, a hydrotreating device is located in the tank. Above the hydrotreating device, a mixing component is located in the tank. The upper end of the tank is connected to a condenser via a pipeline, and the condenser's exhaust port is connected to an exhaust gas treatment pipeline. This utility model's heating component combined with the circulation component achieves uniform and efficient heat transfer to the lubricating oil, ensuring even heating of the oil. The hydrotreating device accelerates the hydrogenation reaction and simultaneously promotes the conversion of low-boiling compounds such as sulfur-based and amino groups into easily treatable H₂S, NH₃, and HCl gases, reducing impurity residue at the source.

A vapor compression heat transfer system includes a compressor configured to compress a refrigerant and a condenser coupled to an outlet of the compressor and configured to receive air flow from a space, the condenser including an inlet air temperature sensor and an outlet air temperature sensor. One or more electronic expansion valves (EXVs) coupled to the outlet of the condenser. One or more heat exchangers are coupled to outlets of the one or more EXVs. A controller is configured to calculate (418) a heat load of the condenser according to current heat transfer from the condenser to the space and an amount of heat transfer calculated to change an output of the outlet air temperature sensor to a target air temperature at a target rate. The controller at least partially controls (424) a speed of the compressor to achieve the heat load at the condenser. Feedback control (430) is also used to control the speed of the compressor, such as based on sensed temperature of the refrigerant, air in the passenger space of a vehicle, or other temperature.

The application discloses a heat pipe condensing section anti-particle deposition system and relates to the fields of energy sources including nuclear energy and mechanical equipment, and solves the technical problem of particle deposition in a heat pipe and influence on heat exchange efficiency, and the technical scheme is as follows: the main part of the heat pipe is a condensing section, further comprising an evaporating section and an adiabatic section between the condensing section and the evaporating section; a wick is arranged in the pipe body, and a working medium is filled and circulated in the pipe body. A special structure is designed on the inner and outer surfaces of the condensing section, the flow rate of the fluid can be changed, the fluid is disturbed, the fine particles in the fluid collide, the deposition rate of the fine particles is reduced, and the heat transfer outside the pipe is enhanced. The application is suitable for heat pipe systems related to energy sources including mobile small reactors, and can be widely applied to the fields of space, deep sea, medical emergency energy and the like.

The utility model belongs to the technical field of thermoelectric conversion, and particularly relates to a separation type heat pipe power generation and thermal control system which comprises an evaporator, a condenser and a generator, the evaporator is connected with the condenser through a steam pipe, the condenser is connected with the evaporator through a liquid return pipe, and the generator comprises a rotor part and a stator part. The rotor part is rotatably arranged in the steam pipe through a support, a gap for steam to flow is arranged between the side face of the rotor part and the inner wall of the steam pipe and / or on the support, blades are arranged at the end, facing the evaporator, of the rotor part, and the stator part is arranged outside the steam pipe and corresponds to the rotor part in position. The energy utilization of steam in the separated heat pipe is more sufficient, the energy waste is reduced, the utilization rate is improved, the heat transfer performance of the separated heat pipe is improved, the service life of the separated heat pipe is prolonged, and the operation reliability of the system is higher.

The utility model discloses a freon natural circulation cooling system for turbine, including evaporimeter, condenser, evaporimeter is linked with condenser, and evaporimeter is located below condenser, and evaporimeter is used for converting freon from liquid state into gaseous state, the condenser be used for converting freon gaseous state into liquid state, and the shell of condenser is equipped with first heat transfer structure, and the shell of evaporimeter is equipped with second heat transfer structure.