3360 results about "Phase-change material" patented technology

The invention relates to the technical field of heat exchange modules, and discloses a temperature field analysis method of a heat exchange module. The method comprises the following steps: carrying out multi-source data acquisition on a micro-channel double-phase precise phase-change heat exchange module to obtain temperature field acquisition data, pressure data, flow data and phase-change material characteristic data; carrying out dimensionless number analysis calculation to obtain a flow pattern criterion value, and calculating gas-liquid two-phase flow heat exchange coefficient distribution data; performing coupling calculation to obtain heat transfer characteristic data of the phase change area; performing conjugate gradient iterative calculation to obtain temperature field reconstruction data; inputting the temperature field reconstruction data into a temperature field evolution prediction model for temperature field evolution prediction to obtain temperature field prediction data; according to the temperature field prediction data, a dual-objective optimization function containing the heat exchange efficiency and the energy consumption is established, the heat exchanger control parameters are solved, the heat exchange performance prediction accuracy is improved, and meanwhile the optimal control parameters giving consideration to the heat exchange efficiency and the energy consumption are obtained.

The invention discloses a freezing and thawing stratum grouting numerical analysis modeling method and system, particularly relates to the technical field of hydraulic engineering numerical simulation, and is used for solving the problem of grouting parameter prediction inaccuracy caused by neglecting the dynamic coupling relationship between the thermodynamic behavior of a phase-change material and a seepage field and a damage field in an existing grouting model. A dynamic correlation system of phase change energy storage performance parameters and seepage field-damage evolution is established, a slurry diffusion path priority channel weight is corrected based on a freeze-thaw interface migration track, a bidirectional iteration equation of a seepage field and a diffusion migration field is coupled, and multi-physical field spatial-temporal scale cooperative solution is realized through a separated iteration algorithm; through multi-dimensional coupling of thermodynamic characteristics of the phase-change material, heterogeneous evolution of seepage paths and damage mechanical response, the prediction precision of the mechanical characteristics of the grouting stone body and the slurry diffusion range under the action of freeze-thaw cycle is remarkably improved, and the leakage and structural instability risks are effectively reduced.

The invention discloses an efficient cross-season energy storage energy pile, and relates to the technical field of new energy and energy conservation. The problems that in an existing energy storage system, the thermal load prediction error is large, underground thermal diffusion attenuation is caused, the heat exchange capacity is lowered, and the geological adaptability is insufficient are solved. According to the scheme, an LA mixed time sequence prediction model is adopted to optimize load prediction, a distributed optical fiber temperature measurement array and a finite element inversion algorithm are combined to accurately reconstruct a stratum temperature field, and the geological type is identified based on a support vector machine classifier to realize self-adaptive regulation and control of heat exchange parameters; meanwhile, the heat pump power, the circulating pump frequency and the heat charging and discharging rate of the phase change material are optimized through a depth deterministic strategy gradient algorithm and a gradient heat release strategy; the heat exchange efficiency, the long-term stability and the complex environment adaptability of the cross-season energy storage system are remarkably improved, and the energy-saving effect of a building energy supply system is improved.

Disclosed in the present application are a server, and an aerodynamic-noise and heat-dissipation optimization control system therefor. The system comprises a heat dissipation fan, a temperature measurement module, a noise measurement module, a power consumption measurement module, a controller and a phase-change air guide cover, wherein the aerodynamic area of the heat dissipation fan is adjustable; the temperature measurement module is used for measuring the temperature of a case; the noise measurement module is used for measuring the noise inside the case; the power consumption measurement module is used for acquiring a load requirement of a program currently running in a server; and the controller is used for adjusting the working condition of the heat dissipation fan, analyzing the lowest operating power of each server assembly on the basis of the load requirement when internal noise reaches a preset threshold value, and adjusting the current power of each server assembly on the basis of the lowest operating power. The phase-change air guide cover is used for guiding air and absorbing heat by means of a phase-change material.

The invention provides a steam extraction energy storage and heat energy storage integrated regulation control method and system, and relates to the technical field, and the method comprises the steps: building a digital twinborn model of a steam extraction energy storage and heat energy storage integrated system, and respectively obtaining corresponding data; establishing a multi-objective optimization model based on the collected data; solving the multi-objective optimization model by using an improved multi-objective differential evolution algorithm in combination with an adaptive variation strategy and a non-dominated sorting mechanism to obtain an optimal adjustment strategy; on the basis of the optimal adjusting strategy, the opening degree of a steam extraction valve of each stage of steam extraction point is adjusted in real time through a distributed control system, and the steam extraction flow is controlled; the inflation power and the deflation power of the compressed air energy storage unit are dynamically adjusted, and meanwhile the charging and discharging power of the flywheel energy storage unit is controlled; the heat charging and discharging rate of the phase change material heat storage unit is adjusted in a self-adaptive mode, and meanwhile the heat charging and discharging flow of the fused salt heat storage unit is controlled.

The invention discloses a semiconductor power device high-efficiency heat dissipation structure based on a micro-channel liquid cooling technology, which comprises a thermoelectric refrigeration module, a phase change material layer, a micro-channel liquid cooling module, a bionic micro-channel structure, an intelligent regulation and control module and a full-packaging module, and is characterized in that the thermoelectric refrigeration module is arranged on the surface of a hot spot area of a power device, and the periphery of the thermoelectric refrigeration module is coated with the phase change material layer; the micro-channel liquid cooling module is embedded into the packaging substrate and matched with the bionic micro-channel structure, the intelligent regulation and control module collects data in real time through the sensor group and dynamically adjusts heat dissipation parameters, and the full-packaging module achieves integrated packaging. The problems that an existing heat dissipation technology is low in efficiency, uneven in temperature distribution, insufficient in intelligent degree and the like are solved, and a more reliable and efficient heat dissipation scheme is provided for high-power-density devices.

The invention relates to a composite phase-change film based on liquid metal and PBO fiber and a preparation method thereof, and belongs to the technical field of phase-change material preparation, and the preparation method comprises the following steps: the composite phase-change film comprises a poly (p-phenylbenzobisoxazole) fiber (PBO) base material, a phase-change material and a heat-conducting filler, the phase-change material is composed of phase-change microcapsules (PM) which are prepared by taking polyurethane (PU) as a wall material and organic solid-liquid phase-change materials (OPCMs) as a core material through a Pickering emulsion polymerization method. The prepared PM has a core-shell structure, and leakage of OPCMs is effectively prevented. The PM and the PBO fiber network are combined, so that the dual packaging of the OPCMs is realized, and the leakage of the OPCMs is further prevented. Meanwhile, dispersion and interaction of the OPCMs in a PBO matrix are optimized, and formation of a network structure with a limited domain is promoted. The composite phase change film prepared by the invention has relatively high mechanical properties, remarkable heat conductivity, excellent and stable flexibility and excellent heat storage capacity.

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The invention belongs to the technical field of solid-liquid phase change heat dissipation, and discloses a memory alloy-based phase change expansion buffer structure, which comprises an elastic structure, a supporting structure, a thin wall, a cavity, a flaring, an electronic device, a heat sink, fins, a connecting structure and a phase change material, the thin wall is made of shape memory alloy and separates the internal cavity and the external phase-change material, the internal cavity is communicated with the external environment through the flaring, and in the flying process of the aerospace vehicle, external airflow flows into the flaring to take away heat stored by the phase-change material continuously. Based on the shape memory function of the memory alloy, additional space expansion buffering can be provided for the phase change material when the temperature changes, and stress damage caused by phase change expansion is avoided. The memory alloy thin wall and the elastic supporting structure are combined, the structure is simple, no moving part exists, circulating work in the high-temperature environment and the low-temperature environment can be achieved, local hot spots caused by internal gap movement of the phase change material in the circulating phase change process are reduced, and heat transfer deterioration is avoided.

The invention relates to the technical field of photovoltaic power generation. The invention provides a photovoltaic module cooling method, system and device and a storage medium, and the method comprises the steps: collecting the working condition parameter data of a photovoltaic module and the environment parameter data in a corresponding range of the photovoltaic module in real time, and obtaining a basic data set; based on the basic data set, a relation model between the working condition parameters and the environmental parameters of the photovoltaic module is established, the relation model is utilized to predict the temperature change trend and the output power change condition of the photovoltaic module under different environmental conditions, and a prediction result is obtained; and starting a liquid cooling, air cooling and phase change material collaborative cooling mechanism according to the prediction result, continuously monitoring the working condition parameters of the photovoltaic module in the cooling process, and dynamically adjusting and optimizing the cooling mode and the corresponding parameters according to the monitoring result. The problems that an existing photovoltaic module lacks an effective temperature adjusting means, the output power is obviously reduced when the working temperature rises, and the overall efficiency and economic benefits of a photovoltaic power generation system are reduced are solved.

The invention relates to the technical field of new energy ships, in particular to a new energy ship power battery cabin cooling system which comprises a cooling box body, the cooling box body wraps a power battery, a fluid cavity channel used for cooling liquid circulation is formed in the cooling box body, and a water cooling system comprises a water pump and a pipeline connected with the cooling box body. The water pump pumps a cooling water source from the water tank and circulates through the fluid cavity channel to take away heat generated by the power battery, the phase change material module is arranged in the cooling box body, and a phase change material absorbs the heat and generates phase change when the temperature of the battery reaches a preset value so as to reduce the temperature generated by the battery; the intelligent control system comprises a temperature sensor, a flow sensor and a central control unit, monitors temperature and flow data of the power battery and the cooling system in real time, and dynamically adjusts operation of the water pump, the flow of cooling water and the working state of the heat energy recovery module. The cooling efficiency and the energy utilization rate of the system are comprehensively improved.

The invention discloses a multifunctional electronic product screen protective film and a preparation method thereof. The protective film comprises a modified base film and a multifunctional composite layer compounded on the surface of the modified base film, the multifunctional composite layer comprises an elastic buffer layer and a self-repairing layer which are sequentially arranged from inside to outside; wherein the elastic buffer layer is an elastic buffer layer with gradient density; the elastic buffer layer comprises the following components in parts by weight: 100 parts of a thermoplastic polyurethane elastomer, 15-25 parts of hollow glass microspheres, 10-15 parts of polyethylene glycol and 3-6 parts of an isocyanate cross-linking agent; the self-repairing layer comprises the following components in parts by weight: 100 parts of a dynamic reversible covalent bond polymer, 30-40 parts of phase change material microcapsules, 10-15 parts of nano cellulose, 5-8 parts of a near-infrared photosensitive initiator and 2-4 parts of an antioxidant. Compared with the prior art, the protective film provided by the invention has excellent scratch self-repairing performance, good adhesion and high anti-explosion screen performance.

The invention provides a tunable micro-nano laser based on a perovskite phase change material and a preparation method thereof, and belongs to the technical field of micro-nano photoelectron, the tunable micro-nano laser comprises a substrate, and a distributed Bragg reflector, a gain dielectric layer and a reflector which are sequentially arranged on the substrate from bottom to top; wherein the gain medium is a perovskite material with a crystal phase transition characteristic. The substrate is made of a material which is transparent or low in loss to pump light and emitted light; the distributed Bragg reflector is formed by alternately arranging high-refractive-index layers and low-refractive-index layers; the gain dielectric layer is a perovskite thin film layer with a crystal phase transition characteristic, and a perovskite material has a spectrum tuning function in the laser resonant cavity; the reflecting mirror is composed of a metal film. According to the invention, the perovskite material is used as a gain medium and a phase change material at the same time, the wide-range tuning of laser wavelength is realized, and the tuning range can reach several nanometers or even wider; the energy utilization efficiency can be improved, the stability is high, and the method is suitable for various types of tunable micro-nano laser applications.

The embodiment of the invention provides a heat management device and an energy storage cabinet. The heat management device is used for the energy storage cabinet and comprises a first loop unit, a second loop unit, a multi-way valve and a phase change heat storage unit. The first loop unit comprises a first heat exchange pipeline, and the first heat exchange pipeline is used for exchanging heat with an energy storage device of the energy storage cabinet; the second loop unit comprises a second heat exchange pipeline; the phase change heat storage unit comprises a first flow channel, a second flow channel and a phase change part, the first flow channel can selectively communicate with the first heat exchange pipeline through a multi-way valve, and the second flow channel directly communicates with the second heat exchange pipeline; the phase change part is in heat conduction contact with the first flow channel and the second flow channel. The heat management device is arranged, and the phase change part is in heat conduction contact with the flow channel, so that efficient heat exchange between the phase change material and the cooling liquid in the flow channel can be realized. When the temperature of the cooling liquid in the flow channel rises, the phase change material absorbs heat and generates phase change, and vice versa, so that the temperature fluctuation in the flow channel is balanced.

The invention provides a composite material with excellent heat insulation performance, which relates to the field of fireproof heat insulation structures, and sequentially comprises a fireproof layer, a transition layer, a first protection layer, a first heat insulation layer, a second heat insulation layer and a second protection layer, wherein the fireproof layer adopts an intumescent fireproof coating, the transition layer adopts a primer, the first protection layer and the second protection layer adopt metal titanium foils, the first heat insulation layer adopts an aerogel felt, the second heat insulation layer adopts a phase change material, the phase change material is formed by compounding a phase change raw material and a base material, and the phase change raw material is microcapsules. A packaging material of the microcapsule is a mixture of melamine, formaldehyde and urea, and a phase change inner core of the microcapsule is paraffin; the base material is epoxy resin. The composite material not only has the characteristics of excellent fireproof and heat-insulating performance, thin thickness, light weight, good long-term stability and the like, but also has the advantages of simple structure, convenience in installation, wide application range and the like.

The present invention relates to the field of semiconductor technology, and particularly relates to an optoelectronic chip packaging structure, comprising: a substrate, on the upper surface of which a signal transmission layer is provided, and on the signal transmission layer a signal processing layer is provided; the signal transmission layer includes: a first electrical chip, which has a first surface and a second surface, and the first surface faces the substrate, and the second surface faces the signal processing layer; the signal processing layer includes: a signal conversion area and a data storage area; a photonic chip is correspondingly arranged in the signal conversion area, and the photonic chip includes: N*M photon computing units, and each photon computing unit includes: an optical waveguide layer, and a modulation layer located on the optical waveguide layer, and the modulation layer is a phase change material layer or the modulation layer includes a phase change material layer; a second electrical chip is correspondingly arranged in the data storage area, which is used for receiving and storing calculation data. The present invention solves the problems of high preparation difficulty and poor heat dissipation performance of the existing packaging structure.

A metasurface structure including an array of sub-wavelength structures including a phase change material (PCM), encoded with different holographic images based on different phases of the PCM, the different phases including a first phase and a second phase. Phase transition between the first phase and the second phase occurs when the metasurface structure is thermally tuned. Each sub-wavelength structure in the array has a distinctive phase difference between the first phase and the second phase of the PCM.

The invention relates to a liquid cooling pipeline and phase change material compounded novel energy storage system and method, which are mainly applied to the field of battery energy storage in an extremely cold environment. The system comprises a liquid cooling unit, a liquid cooling pipeline system, a battery cluster, a phase change module, a multi-stage bypass system, a valve system and a circulating pump. Through cooperative work of the liquid cooling unit and the phase change module, the system can recover the heat of the cooling liquid after the battery is heated and store the heat in the phase change module, and the heat stored in the phase change module is preferentially used for heating when the temperature of the battery is relatively low, so that the energy consumption of the liquid cooling unit is reduced, and the energy efficiency of the system is improved.

The invention discloses an intelligent temperature control system of an aluminum alloy plate punch forming die, which relates to the field of aluminum alloy plate processing and comprises a temperature acquisition module, a data transmission module, an analysis processing module, a control decision module and a heating and cooling execution module. Various sensors and self-adaptive layout are used for temperature acquisition, so that data accuracy is guaranteed; data transmission is combined with multiple technologies and block chain authentication to ensure stability; analyzing and processing introduced quantum neural network and causal analysis mining features; the control decision is combined with multiple algorithms and multiple parameters are considered, so that intelligent decision making is realized; a novel device and a phase-change material are adopted for heating and cooling, and the temperature is accurately controlled by combining an advanced control strategy. According to the invention, accurate temperature acquisition, multi-technology guarantee data transmission and quantum calculation are realized to improve the analysis decision ability, and accurate temperature control is realized by the novel device and the control strategy; the die state can be monitored, faults can be diagnosed, stamping quality and efficiency are improved, the service life of the die is prolonged, and cost is reduced.

The invention discloses a phase change microcapsule modification method which comprises the following steps: S1, selecting a paraffin phase change material or a hydrated salt phase change material, and adding 0.5-1.5 wt% of a chemical stabilizer to modify the thermal stability of the phase change material; s2, compounding a microcapsule wall material by using polyurethane (PU) and nano silicon dioxide (SiO2), and adding 1wt% of carbon nanotubes (CNT) and 0.5-2wt% of nano silicon dioxide (SiO2); s3, the microcapsule wall material is subjected to surface hydrophobic coating treatment, polymethyl methacrylate (PMMA) is sprayed to form a waterproof isolation layer, the modified microcapsule phase change material is obtained, and in the step S1, 0.5-1.5 wt% of graphene oxide (GO) is added for modification when the paraffin phase change material is selected. The preparation method is reasonable in design, energy storage, heat preservation and mechanical properties of PCM-UHPC are remarkably improved through multi-layer composite modification of the PCM microcapsules and the nano-enhancement technology of the UHPC matrix, and the preparation method is suitable for the fields of energy-saving buildings, temperature control infrastructures and the like and has wide application prospects.

A heating and cooling system including a heat pump system and a thermal energy storage (TES) and retrieval system. The TES and retrieval system includes a Phase Change Material (PCM) unit housing a PCM and a first refrigerant line at least partially immersed in the PCM or embedded within the PCM unit for the PCM to exchange heat with refrigerant in flow through the first refrigerant line, the refrigerant directed from a compressor of the reversible heat pump system to the first refrigerant line and back to the reversible heat pump system after the first refrigerant line. The TES and retrieval system further includes a first water line at least partially immersed in the PCM or embedded within the PCM unit for the PCM to exchange heat with water in the first water line.

The invention provides a variable-stiffness anti-fatigue flexible cable, and relates to the technical field of cables, and the flexible cable comprises a heat conduction channel which is arranged along the axial direction of the cable in a penetrating manner, a conductor which is spirally arranged around the heat conduction channel, a filling layer which wraps the heat conduction channel and the conductor, a shielding layer of which the inner side is provided with a storage cavity, and an adjusting layer which comprises a plurality of rigid adjusting units. Wherein heat conduction liquid is arranged in the heat conduction channel, a heat conduction pipe is embedded in the filling layer, the heat conduction pipe is provided with a valve port, the heat conduction pipe is communicated with the storage cavity, and each rigid adjusting unit is a flexible bag filled with a phase change material. Liquid heat triggers the phase-change material to expand through the shielding layer, so that the rigidity adjusting unit extends to enhance local rigidity, the effect of inhibiting excessive bending is achieved, the short-time hardness of a bending part is higher than that of a peripheral area due to expansion retention of the phase-change material, and the purpose of dynamically transferring a bending stress point is achieved.

The invention relates to the technical field of refrigeration material preparation, in particular to an efficient passive radiation refrigeration material suitable for a sub-super environment and a preparation method and application of the efficient passive radiation refrigeration material. The method comprises the following steps: uniformly mixing thermoplastic polyurethane, sunlight high-reflection inorganic particles and a phase change material in a solvent; after a chemical foaming agent is added, the obtained suspension liquid is heated and foamed in a confinement mold, and wet gel is formed; and finally, carrying out freeze drying treatment to obtain the composite porous aerogel. The prepared material has a micro-nano porous skeleton formed by TPU, and inorganic particles and PCM are uniformly dispersed in the skeleton wall. Through component cooperation and a special porous structure, the material has extremely high sunlight reflectivity and mid-infrared emissivity, self-adaptive temperature regulation and control are achieved through PCM phase change, the problem that refrigeration of a traditional material fails in the sub-environment such as the vertical surface is effectively solved, and efficient sub-super-environment heat management is achieved.

The invention discloses a photo-thermal phase change fiber material with a core-shell structure and a preparation method of the photo-thermal phase change fiber material. The method comprises the following steps: performing coaxial electrostatic spinning on a shell layer spinning solution and a core layer spinning solution to obtain core-shell structure nanofibers; soaking the core-shell structure nanofiber in the hydrophobic modification solution; and heating and drying the soaked fibers to obtain the photo-thermal phase change fiber material with the core-shell structure. The material can enhance adsorption of marine leaked crude oil through solar heating, can cope with complex weather conditions through heat storage of the phase change material, and has the advantages of simple preparation method, strong crude oil adsorption performance, environmental protection, harmlessness and the like.

A system for dissipating heat from a component includes a heat pipe assembly and an adsorption bed. The heat pipe assembly may include a pair of walls defining an inter-wall volume between opposing faces of the pair of walls. The heat pipe assembly may be configured to be thermally coupled to the component such that the pair of walls extends away from the component. The adsorption bed may at least partially occupy the inter-wall volume. The adsorption bed may include an adsorbent medium and a phase change material. The phase change material is configured to dissipate heat away from the component by a phase change from a first phase to a second phase.

The invention relates to the technical field of lasers, in particular to a laser heat management device and a control method thereof, the laser heat management device comprises a cooling substrate, the cooling substrate is internally provided with a micro-channel, the micro-channel comprises a main channel and a branch channel, and the main channel is used for circulating cooling water; the cooling substrate is provided with a detection control area, the detection control area is located at the joint of the branch channel and the main channel, the detection control area is provided with a phase change micro-valve and a detection assembly, the detection assembly is used for collecting temperature data, the phase change micro-valve comprises a phase change material and a flexible separation blade, and after the valve is opened, the phase change material generating phase change pushes the flexible separation blade, and the phase change micro-valve is connected with the detection assembly. The communication state of the main channel and the branch channel is controlled; the main controller is used for receiving the temperature data of all the detection control areas and controlling the valves of the corresponding detection control areas to be opened or closed according to the deviation between the temperature data and the target temperature. The temperature gradient of the laser can be reduced at least so as to ensure that the laser realizes a long-term stable working state.

A method of reducing lost circulation includes introducing into a subsurface formation a wellbore fluid containing an encapsulated lost circulation material having a core including an elastomer and a disintegrating agent, and the disintegrating agent including at least one of the phase change material or a gas-producing material, and a shell encapsulating the core; heating the disintegrating agent to cause the phase change material to expand, or to cause the gas-producing material to produce a gas, or a combination thereof to break the shell; and releasing the elastomer from the encapsulated lost circulation material; expanding the elastomer; and filling a void or fracture of the subsurface formation with the expanded elastomer to reduce fluid loss.

The invention discloses a composite cylindrical battery thermal management system which comprises a single battery, the single battery is nested in a sleeve, a plurality of transverse fins are uniformly distributed on the outer side of the sleeve, a shell is arranged on the outer sides of the sleeve and the transverse fins, phase change materials are filled among the sleeve, the transverse fins and the shell, and the transverse fins are in contact with the sleeve and the shell respectively; one part of heat generated by the single batteries is transmitted to the phase-change material and is absorbed by the phase-change material through the transmission of the sleeves, the transverse fins and the shell, and the other part of heat is transmitted to the external environment through the shell. By using the sleeve, a high-thermal-conductivity network can be formed to accelerate heat transfer, the problem of large temperature difference of the battery caused by traditional transverse fins is solved, the temperature uniformity of the battery is improved, the thermal conductivity of the phase-change material is improved, heat dissipation is enhanced, the defect of insufficient thermal conductivity of the phase-change material is overcome, and safe and efficient operation of the battery at high charge-discharge rate is ensured.

Thermal management systems include a vapor cycle and a liquid cycle sharing a common working fluid. The vapor cycle includes, along a vapor cycle flow path, a compressor and a condenser. The liquid cycle includes, along a liquid cycle flow path, a fluid driver, a load, a regulator valve, and a phase change material heat exchanger. A cold sink is thermally coupled to a heat load. A separator is configured to separate liquid and vapor portions of the working fluid and direct the liquid into the liquid cycle and the vapor into the vapor cycle. The separator is part of both the vapor cycle and the liquid cycle. The regulator valve controls a temperature of the working fluid within the liquid cycle at a location upstream of the phase change material heat exchanger to control a mode of operation of the phase change material heat exchanger.

The invention provides a temperature control method and system for an organic fertilizer fermentation bin and a medium, and relates to the technical field of temperature control, and the method specifically comprises the steps: obtaining the environmental parameters and corresponding control parameters of the fermentation bin at a plurality of historical moments, obtaining the environmental parameters of the fermentation bin at the current moment, and calculating the comprehensive gas concentration and environmental state index; setting a target temperature, calculating the deviation between the current temperature and the target temperature, analyzing the correlation among a temperature deviation value, an environment state index and a control parameter by using a Pearson's correlation coefficient, and calculating the control parameter; and adjusting the heater and the ventilation equipment according to the control parameters. By obtaining and analyzing various key parameters in the fermentation bin in real time, comprehensive evaluation of the environment state is achieved, the accuracy of temperature control is improved, correlation analysis among temperature deviation, environment state indexes and control parameters is effectively integrated, operation of heating and ventilation equipment is dynamically adjusted in combination with a phase change material, and the temperature control accuracy is improved. The stability of the fermentation process is improved.