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75 results about "Ground temperature" patented technology

Ground source heat pump buried pipe partition layout and cold and heat balance control method

The invention relates to the technical field of ground source heat pumps, and discloses a ground source heat pump buried pipe zoning layout and cold and heat balance control method which comprises the following steps that the current three-dimensional ground temperature field state of the area where a ground source heat pump buried pipe is located is obtained; predicting a future state sequence of the ground temperature field under different control strategies in a future prediction time domain; solving to obtain an optimal control sequence based on a multi-objective optimization function which aims at minimizing the comprehensive operation cost of the system in the prediction time domain; the multi-objective optimization function at least comprises an energy consumption item representing system short-term operation energy consumption and a balance item representing a ground temperature long-term balance state; and executing the first control action in the optimal control sequence. The prediction model constructed by the invention can combine a physical rule with a data residual continuously learned from actual operation, and ensures that prediction information on which a control decision depends always keeps high fidelity in long-term operation of the system.
Owner:SHANDONG FANGYA GSHP TECH

Method for evaluating rock mass fracture freeze-thaw fracture risk based on surface temperature

The invention discloses a method for evaluating rock mass fracture freeze-thaw fracture damage risk based on surface temperature, which comprises the following steps: S1, carrying out data acquisition on a target area based on a multi-source sensor carried by an unmanned aerial vehicle platform, and obtaining fracture geometric parameters, daily surface minimum temperature, daily surface maximum temperature, daily temperature difference and fracture moisture conditions; s2, on the basis of the geometric parameters of the crack, constructing a crack frost heaving force analytical model; obtaining a quantitative relation between the stress intensity factor and the environment temperature; s3, the I-type fracture toughness of the target rock mass is measured, and the critical crack initiation temperature of the rock mass is determined; determining the number of critical freezing and thawing cycles; s4, on the basis of the daily earth surface minimum temperature, the daily temperature difference, the fracture moisture condition and the critical crack initiation temperature, the annual accumulated effective freezing and thawing cycle number is obtained; and calculating a freeze-thaw damage ratio, and carrying out risk quantification and grading. According to the invention, the problem of inaccurate evaluation caused by limitation to local monitoring and lack of an environment factor and material parameter integrated evaluation framework in the prior art is solved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

A design method for rigid pile composite foundation structure in a region with deep melting interlayer

PendingCN122113209Aunderstanding physicsUnderstand mechanicsGeometric CADDesign optimisation/simulationFreeze thawingGround temperature
The application discloses a kind of deep melting interlayer development area rigid pile composite foundation structure design method, it is related to rigid pile composite foundation field, including the following steps: step one, in the existing rigid pile bearing capacity calculation process, front-end increase subgrade-ground temperature field analysis;Step two, increase groundwater analysis;Step three, determine the compression modulus of the soil layer of seasonal freeze-thaw layer, (water-rich) melting interlayer, permafrost layer, bearing capacity characteristic value, check the single pile bearing capacity characteristic value of different positions in the cross section of roadbed using different pile length, pile diameter, pile body stiffness material;Step four, carry out zoned unequal design, adjust pile length, pile diameter, pile body stiffness, so that the range of all pile single pile bearing capacity characteristic values in cross section is lower than design allowable value.The application effectively optimizes pile foundation design, reduces material waste, reduces engineering cost, while ensuring the safety and stability of structure.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

A method and system for non-contact passability estimation of a Mars rover based on thermal inertia

The application belongs to the technical field of data processing, and discloses a Mars rover non-contact passability prediction method and system based on thermal inertia, which comprises the following steps: obtaining the ground temperature time sequence and environmental parameters of a target area; constructing a thermal inertia estimation model, inputting the ground temperature time sequence and environmental parameters into the thermal inertia estimation model, and obtaining the thermal inertia estimation value of the soil; constructing a thermal inertia and passability index relationship model, inputting the thermal inertia estimation value of the soil into the thermal inertia and passability index relationship model, and outputting a predicted passability index; determining the passability state level according to the predicted passability index, and generating a navigation control suggestion, so that the Mars rover passes the target area according to the navigation control suggestion of the Mars rover. The application can effectively improve the evaluation accuracy of the Mars rover passing the target area by extracting the thermal inertia estimation value of the soil of the target area to predict the passability index of the Mars rover, and ensures the driving safety of the Mars rover.
Owner:JILIN UNIVERSITY

A method for remote sensing of surface temperature-based near-surface geotemperature

The application provides a surface temperature-based surface ground temperature remote sensing measurement method, which comprises the following steps: expanding radiation terms of bare soil and vegetation at a target pixel into Taylor series at a remote sensing surface temperature respectively, establishing a remote sensing radiation equation of the remote sensing surface temperature by taking remote sensing vegetation coverage as a weight; solving remote sensing bare soil temperature and remote sensing vegetation temperature at the target pixel by combining the remote sensing radiation equation, a relationship equation of the remote sensing surface temperature and a remote sensing component temperature; expanding radiation terms of bare soil and vegetation at a simulation grid into Taylor series at a simulation surface temperature respectively, establishing a simulation radiation equation of the simulation surface temperature by taking simulation resolution vegetation coverage as a weight; solving simulation bare soil temperature and simulation vegetation temperature at the simulation grid by combining the simulation radiation equation, a relationship equation of the simulation surface temperature and a simulation component temperature; and estimating average surface ground temperature by using a correlation model between the simulation bare soil temperature and simulation surface ground temperature and the remote sensing bare soil temperature.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Verifiable novel ground temperature measurement system and method

The invention discloses a novel verifiable ground temperature measurement system and method, and the method comprises the steps: employing three temperature sensors, placing the three temperature sensors in a thermostatic bath before starting, taking feature points for calibration, recording three temperature reference difference values, building a difference value database, enabling the three sensors to synchronously collect real-time temperature values per second, carrying out the real-time comparison of a current difference value with the reference difference values, and obtaining a temperature difference value database; judging and confirming fault sensors exceeding the deviation range, when only one fault sensor exists, obtaining a reckoning temperature value according to the reference difference value corresponding to the fault sensor and the other two real-time temperature values, taking an average value as a measurement result, and when two fault sensors exist, directly taking the measurement value of the first sensor as the measurement result. According to the invention, three core problems of precision control, fault tolerance and maintenance cost can be solved, and continuity and reliability of ground temperature monitoring are guaranteed.
Owner:SHANGHAI DI MINE ENG KANCHA CO LTD

Method, device and equipment for predicting influence of swamp vegetation change on surface temperature

The invention provides a method, a device and equipment for predicting influence of marsh vegetation change on surface temperature, and belongs to the technical field of ecological remote sensing and climate effect evaluation. The method comprises the following steps: firstly, determining vegetation pixel distribution as a research area range in an unchanged marsh wetland distribution range; a year-by-year and multi-year average growth season data set is constructed through a maximum value synthesis and arithmetic mean method; in the grid units, the pixels are divided into a high value group and a low value group according to the multi-year average growth season leaf area indexes, the difference value between the multi-year average growth season leaf area indexes of all the pixels in the high value group and the low value group and the average surface temperature value is calculated, and then the surface temperature change degree caused by the marsh wetland vegetation coverage change is quantified; and finally, realizing accurate prediction of future surface temperature influence in combination with a vegetation change trend on a pixel scale.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Water delivery tunnel maintenance ventilation numerical simulation method considering high ground temperature and biological fouling

The invention discloses a water delivery tunnel maintenance ventilation numerical simulation method considering high ground temperature and biofouling, which comprises the following steps: carrying out a biologic putrefying gas release characteristic experiment in a high ground temperature environment, fitting a biologic putrefying gas release rate equation in the high ground temperature environment, calculating the required air quantity considering biologic putrefying gas pollution in the high ground temperature environment, and calculating the ventilation quantity of the water delivery tunnel maintenance ventilation numerical simulation method considering biologic putrefying gas pollution in the high ground temperature environment. And ventilation numerical simulation of the deeply-buried water conveyance tunnel in the overhaul period. According to the method, the emission amount and the emission rule of biological decay gas pollutants including organic gas TVOC in the deeply-buried water delivery tunnel in the high-ground-temperature environment are clearly considered; determining the air volume required for purifying biological decay gas pollutants including organic gas TVOC in the deeply-buried water delivery tunnel in the high-ground-temperature environment; biological decay gas release and ventilation numerical simulation of the deeply-buried water delivery tunnel in the overhaul period under the high ground temperature environment are comprehensively considered, the development condition of an air flow field in the tunnel and the migration and distribution rule of harmful gas under the high ground temperature and biological fouling coupling condition are determined, and the method has important significance for guaranteeing ventilation safety of the complex water delivery tunnel.
Owner:GUANGDONG WATER ENGINEERING RESEARCH CENTER OF WATER RESOURCE (GUANGDONG) CO LTD +4

Method for vegetation restoration in high-altitude permafrost engineering disturbance area

The application discloses a kind of high altitude permafrost engineering disturbance area's vegetation recovery method, comprising the following steps: to meet sowing time period, turn over, supplement grass seed, sowing time period is: deep 0 cm place consecutive 10 days daily average ground temperature value is not less than first preset temperature value and deep 50~60 cm place consecutive 12 daily average ground temperature value is not less than second preset temperature value after the deadline 3~10 days;Cover multilayer covering net, until deep 0 cm place consecutive 8 days average ground temperature value is not less than third preset temperature value, remove part of covering net, only remain a layer of covering net;When grass seedling grows to 5~8 cm, remove last layer of covering net.The application is limited by the daily average ground temperature value of deep 0 cm in frozen soil disturbance area and deep 50~60 cm in frozen soil disturbance area, which helps to keep the endosperm cells inside active after seed sowing, increases the germination rate of grass seeds, and has good vegetation recovery effect.
Owner:SINOHYDRO BUREAU 6 CO LTD

Multi-layer ground temperature measuring device

ActiveCN223664129UThermometer detailsThermometer applicationsGround temperatureBody temperature measurement
The utility model discloses a multilayer ground temperature measuring device, which relates to the technical field of ground temperature measurement, and comprises a measurer body, a temperature measuring rod body fixedly connected to the bottom of the measurer body, and a temperature measuring fixing mechanism used for fixing the measurer body when the measurer body and the temperature measuring rod body are used for measuring temperature, through the arrangement of the temperature measurement fixing mechanism, when the measurer body and the temperature measurement rod body carry out temperature measurement work, the measurer body can be fixed through the arrangement of a first insertion column and a second insertion column, the friction force between the measurer body and the ground during use is improved, and temperature measurement errors caused by movement of a measured object can be eliminated through stable fixation; and meanwhile, the temperature measurement fixing mechanism is arranged, so that an operator can more conveniently carry out temperature measurement work, and the stability of a measured object does not need to be ensured by spending extra time and energy. The working efficiency can be improved, and the operation difficulty is reduced.
Owner:ANHUI PROVINCIAL GEOLOGICAL EXPLORATION BUREAU NO 1 INST OF HYDROLOGIC ENG GEOLOGY

Method for planting plant using heat-shielding plate capable of suppressing increase in ground temperature and evaporation of ground moisture

PCT designated stageWO2026147071A1Porous substrateGround temperature
The present invention provides a method for planting a plant using a heat-shielding plate, the method comprising the steps of: preparing a heat-shielding plate by applying a polymethyl methacrylate (PMMA)-based heat shielding paint containing a heat-treated mineral-derived powder to at least one surface of a porous substrate; cutting the heat-shielding plate; forming an excavated surface by performing excavation at a location where a plant is to be planted where a plant is to be planted; arranging the heat-shielding plate around the excavated surface such that the excavated surface is exposed; and fixing the heat-shielding plate to the ground. According to the method, solar radiant heat is reflected to reduce the ground temperature, suppress evaporation of moisture, and maintain air permeability, thereby creating an environment favorable to plant growth.
Owner:JS CHEM CORP

Wing hot air de-icing control system and in-flight de-icing pressure control method

The present application provides a wing hot air anti-icing control system and an air anti-icing pressure control method. The system comprises a wing anti-icing valve, a wing anti-icing pressure sensor, a wing anti-icing temperature sensor, a wing anti-icing ground temperature monitoring sensor, a wing anti-icing monitoring pressure sensor, a wing anti-icing controller, a bleed air fan valve and a flute type pipe. The wing anti-icing controller comprises independent control channels and monitoring channels, and the wing anti-icing valve comprises independent valve shutdown circuits and valve adjustment circuits. The present application can realize ground and air anti-icing, and the anti-icing is more accurate according to the wing anti-icing pressure sensor than the anti-icing according to the reference upstream bleed air temperature. In the case of single-engine bleed air anti-icing, bleed air failure or performance decline, etc., the anti-icing or maximum anti-icing can still be performed under the condition of ensuring the optimal aircraft. Therefore, the present application can not only effectively reduce energy consumption, improve economy and safety, but also has good anti-icing effect and good universality.
Owner:COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1

Leaf accumulation device

In recent years, global warming has caused the temperature of the earth's surface to rise, resulting in the loss of vegetation covering the surface. As the exposed ground temperature rises, the surface comes into direct contact with the hot air, causing moisture to evaporate and resulting in the loss of moisture on the surface. [Solution] The leaf collection device of the present invention solves the above problem by comprising a leaf collection device having multiple rows of rectangular introduction holes in the horizontal and vertical directions that introduce fallen leaves using multiple vertical pieces arranged at predetermined intervals in the horizontal direction and multiple horizontal pieces arranged at predetermined intervals in the vertical direction that intersect the vertical pieces.
Owner:MORISHO LLC

Ground temperature loading method for aircraft thermal structure

The invention provides an aircraft thermal structure on-orbit circulation and reentry atmosphere mission profile ground temperature loading method, a three-cabin intercommunicated temperature test device is established, three temperature loading environments can be provided, a test piece can be transferred among the three test cabins through a guide rail, rapid heating and cooling required by a test are provided, and the test efficiency is improved. A temperature load environment for providing on-orbit temperature circulation and reentry atmosphere aerodynamic heat for a test piece can be simulated, and engineering requirements are met.
Owner:BEIJING INST OF STRUCTURE & ENVIRONMENT ENG

A method for predicting original rock temperature of deep buried tunnel

The application provides a deep-buried tunnel original rock temperature prediction method, which utilizes field drilling measured data, tunnel surrounding rock measured temperature and data provided by a ground temperature database to obtain the original rock temperature of the whole tunnel through Akima spline interpolation method, wherein the ground temperature database is obtained through the following steps: collecting measured data of published ground temperature drilling in a certain area, pre-processing the measured data, and then performing spatial interpolation in the area by using a general Kriging method. The method solves the problems of great difficulty, long time consumption and high drilling cost in original rock temperature prediction of deep-buried tunnels, reduces the workload and calculation time on the basis of scientifically predicting the original rock temperature of deep-buried tunnels, is more suitable, is more in line with the actual engineering conditions, and improves the accuracy of the prediction result.
Owner:CHONGQING UNIV

Anti-condensation ground temperature adjusting water tank

The ground temperature adjusting water tank comprises a first tank body, a second tank body and a third tank body, the top of the first tank body is communicated with a main machine water supply pipeline, a tail end water supply opening is formed in one side of the main machine water supply pipeline, and a main machine water outlet is formed in the other side of the main machine water supply pipeline; a one-way differential pressure valve is arranged at the communication position of the first tank body and the main machine water supply pipeline, a sewage draining exit is formed in one side of the first tank body, and a main machine water return opening is formed in the bottom of the first tank body. Through the unique structural design of the first tank body, the second tank body and the third tank body, low-temperature water and high-temperature water are respectively supplied during refrigeration in summer, the water flow direction is changed by controlling the three-way valve, dew-point water temperature control of the high-temperature water is realized by utilizing inertia of mixed water in the water tank, and the refrigeration efficiency is improved. Proportional adjustment is replaced with a simple mechanical control method, and the equipment cost and the failure rate are greatly reduced.
Owner:SICHUAN QIANBAIFANG TECH CO LTD

Osmotic pressure and temperature coupling simulation device and method based on true triaxial electromagnetic loading

The invention relates to the technical field of rock mechanics engineering, and discloses a true triaxial electromagnetic loading-based osmotic pressure and temperature coupling simulation device and method.The true triaxial electromagnetic loading-based osmotic pressure and temperature coupling simulation device comprises a triaxial electromagnetic loading assembly, a test box, six dynamic sealing assemblies, an osmotic pressure assembly, a heating assembly and an acquisition assembly, the six surface openings are matched with the waveguide rod; the six groups of dynamic sealing assemblies seal gaps between the openings and the waveguide rod to form a sealed cavity; the osmotic pressure assembly is communicated with the sealed cavity, the heating assembly is arranged in the test box, and the acquisition assembly acquires experimental data; according to the structure, three-axis six-direction synchronous dynamic loading can be realized, the osmotic pressure and the temperature in the sealed cavity can be synchronously and accurately regulated and controlled in dynamic loading, and the problem that a traditional device only performs single-axis dynamic loading and cannot cooperatively simulate a multi-field coupling environment is solved; and the occurrence environment of high ground stress, high ground temperature and high osmotic pressure of deep rock mass and multi-axis and multi-direction power disturbance coupling is truly restored.
Owner:SHENZHEN UNIV

Visual automatic rod connecting and disconnecting device and method of use

The present application belongs to the technical field of mining drill rods, and particularly relates to a visual automatic rod connecting and dismounting operation device and a use method. The remote visual automatic rod connecting and dismounting operation device and operation process provided by the present application solve the problem of high ground temperature being not suitable for manual field operation, and realize rock drilling operation in an on-ground centralized control room through remote control operation, without the need of underground operation. The remote visual automatic rod connecting and dismounting operation device and operation process provided by the present application solve the technical problem of repeated ineffective rod connecting or dismounting caused by the dim light in a mining roadway and the inability of an operator to closely observe the accurate positions of a drill rod and a drill bit tail of a rock drill, a drill rod and a grab rod assembly, a drill rod and a clamping rod assembly, etc. during rock drilling, and improve work efficiency. The visual automatic rod connecting and dismounting operation device and operation process provided by the present application are operated in a ground remote centralized control room, without the need of an operator being located underground for close operation, thereby reducing the safety hazards of a mining rock drilling jumbo operator.
Owner:HUNAN SFORDMAIDEN INTELLIGENT EQUIPMENT CO LTD +1

Device and method for simulating deep ground high temperature-three-dimensional ground stress coupling environment through prestressed steel strand

The invention belongs to the technical field of deep ground environment mechanical testing, and discloses a device and method for simulating a deep ground high temperature-three-dimensional ground stress coupling environment through a prestressed steel strand. The device comprises a test piece main body system, a prestress applying system, a positioning reinforcing system and a monitoring feedback system. The core of the method is that based on a thermal stress formula under three-dimensional complete constraint in thermoelastic mechanics, additional thermal stress caused by ground temperature rise is calculated, and the additional thermal stress and target three-dimensional ground stress are superposed; and through a post-tensioning pre-stress technology, the superposed total stress is accurately and stably applied to an internal test piece for a long time by utilizing a retard-bonded pre-stress steel strand system and a high-strength concrete transfer medium, so that a deep high-ground-temperature and high-ground-stress coupled mechanical environment is constructed. The problems that a traditional coupling test device is high in cost, difficult to control and difficult to stabilize for a long time are solved, and accurate simulation of the deep ground high temperature-three-dimensional stress coupling environment is achieved.
Owner:NORTHEASTERN UNIV CHINA

Forest fire monitoring method and monitoring system based on three-temperature model

The invention relates to a forest fire monitoring method and monitoring system based on a three-temperature model, and the method comprises the steps: S1, extracting an initial surface temperature feature, an initial canopy temperature feature and an initial atmospheric temperature feature according to a radiation feature, and obtaining a standard three-temperature feature set; s2, generating a temperature weight distribution parameter based on the standard three-temperature feature set, and obtaining an evapotranspiration prediction value according to the temperature weight distribution parameter; and S3, comparing the evapotranspiration prediction value with a preset fire danger threshold interval, and outputting a visual fire danger distribution map as a forest fire monitoring result. In a forest fire monitoring scene, an existing monitoring method has significant limitation; on the basis of the scheme, the regional evapotranspiration can be accurately predicted in real time in a complex and changeable forest ecological system, so that a reliable basis is provided for fire risk assessment and early warning.
Owner:SHENZHEN YIJIAN SPACE TECH CO LTD +2

A road waterlogging risk assessment method based on unmanned aerial vehicle perception

The application discloses a road waterlogging risk assessment method based on unmanned aerial vehicle sensing, and belongs to the technical field of traffic safety risk assessment. In order to solve the problems of high-precision, sustainable road waterlogging monitoring and auxiliary decision-making, a conversion model of image pixels and actual length is constructed, a relationship model of pixel gray scale of an infrared image obtained by an infrared thermal imager and ground temperature is established, waterlogging depth is calculated by using the infrared image obtained by the infrared thermal imager, a waterlogging mask mark is generated, the area and volume of a waterlogging region are estimated, the influence of waterlogging depth on the friction between a road and a tire is considered, the friction coefficient under a wet and slippery condition is calculated, the friction coefficient under the wet and slippery condition is corrected by introducing shear stress to obtain the friction coefficient of shear effect, then the recommended vehicle speed is calculated based on the current friction level of the road and the change rate of waterlogging, and a traffic comprehensive risk score model of the road under the waterlogging state is established to assess the road waterlogging risk.
Owner:SHENZHEN URBAN TRANSPORT PLANNING CENT CO LTD

A cold storage temperature adjustment ventilation roadbed system and method suitable for high ground temperature amplitude permafrost regions

The application discloses a cold storage temperature adjustment ventilation roadbed system and method suitable for high-temperature-amplitude permafrost regions and belongs to the technical field of permafrost engineering. The system comprises a roadbed body, a ventilation pipeline system, a cold storage unit conveying system and a valve control device. The cold storage unit conveying system comprises a track structure and a cold storage unit movable along the track structure. The ventilation pipeline system is a three-section structure, three-section ventilation pipelines are sequentially connected through a corner circular pipe, and an overall "S" shape ventilation path is formed. The track structure guides the cold storage unit to reciprocate between the external environment and the roadbed interior in the ventilation pipeline system along the track structure. The valve control device selectively opens or closes the ventilation pipeline system according to the difference between the external environment temperature and the roadbed interior temperature, and realizes ventilation heat dissipation or closed heat preservation working condition switching. The application realizes passive regulation and control of the roadbed temperature through the synergistic effect of ventilation heat exchange and cold storage temperature adjustment, improves the utilization efficiency of low-temperature resources, slows down permafrost degradation, and improves the stability of the permafrost roadbed.
Owner:ZHEJIANG INST OF COMM CO LTD

Novel method for promoting early maturation of large cherries

The invention provides a novel method for promoting early maturation of large cherries, and relates to the technical field of fruit tree cultivation. The greenhouse cherry planting device solves the problem that heat is wasted due to the fact that greenhouse cherries planted in a greenhouse do not need to be cooled through ventilation instead of being too high in room temperature. Generally, the room temperature of a greenhouse can reach or exceed 35 DEG C in sunny weather in winter. Ground temperature is increased, rising and falling of the ground temperature and the room temperature tend to be synchronous, rising of the ground temperature in the greenhouse is promoted, and therefore overground and underground physiological synchronization of tree bodies is promoted. The phenomenon that the overground part of the cherries germinates and is high in activity is avoided, and the underground part of the cherries is still in a semi-dormancy and weak-activity state under the limitation of low temperature; and an underground ventilation heating facility is additionally arranged, no extra direct heating facility is needed, energy is saved, and the cost is low. The new facility ensures that no open fire or high-temperature equipment exists in the greenhouse, the operation is safe, and no fire risk exists. And moisture in air in the greenhouse can be condensed in the ventilation pipe, so that the humidity in the greenhouse is reduced, and diseases are reduced.
Owner:HEBEI NORMAL UNIVERSITY OF SCIENCE & TECHNOLOGY

A method for planting morel high ridge

The present application relates to the Morel planting technical field, specifically to a kind of Morel high ridge planting method, including early cooling, mid-term heat preservation and late warming measures, also including the following steps: by constructing high ridge structure, utilize the characteristics of slow change of ground temperature, create long-term stable growth environment for Morel, specifically including cooling treatment after sowing to before mushroom induction, warming treatment after mushroom induction to harvesting period;Beneficial effect is: increase the mushroom area.Planting according to the method, the mushroom area is equivalent to 1.2-2.2 times of traditional planting method, with the increase of the proportion of soil ridge height;Create the best survival conditions and space of Morel.The mushroom position is on ridge slope, and ground heat line or "underground water heat exchange pipe belt" can be laid in ridge ditch, and ridge top is covered with grass mat and other coverings, which plays the role of warming, heat preservation, moisture retention and ventilation, creates stable and most suitable growth environment for Morel growth, realizes stable yield.
Owner:洛阳薯乡薯业科创园有限公司

A phase change energy storage differentiated configuration method suitable for highway subgrade of permafrost and seasonal frozen soil

PendingCN122634994AGround temperatureSoil type
The application belongs to the field of cold region road engineering design method and frost damage prevention and control technology, and proposes a phase change energy storage differentiation configuration method suitable for permafrost and seasonal frozen soil highway subgrade types. The method first determines the frozen soil type according to the ground temperature field and freezing depth and other indexes, then combines different engineering goals required for permafrost thawing and thermal stability and seasonal frozen soil thawing and freezing depth control, realizes the systematic matching of phase change energy storage materials, structure configuration and key parameters through the steps of temperature zone matching, configuration selection, parameter combination, verification iteration and other steps, establishes the ternary mapping relationship of frozen soil type-engineering goal-technical route, improves the applicability and stability of the phase change energy storage temperature control measures under different frozen soil types, and the configuration scheme can be replicated and verified, which is conducive to the standardization of design and popularization, and can effectively improve the comprehensive effect of subgrade thermal stability and deformation control.
Owner:INNER MONGOLIA UNIVERSITY +1

Thermal-fluid-solid coupling partition loading test device and method

The invention discloses a heat-fluid-solid coupling partition loading test device and method, and relates to the technical field of deep mines and engineering. The device comprises an outer shell with the front portion and the rear portion closed and an inner shell placed in the outer shell, a three-way pressurizing device and a counter-force frame are arranged between the outer shell and the inner shell, a coal rock test piece is placed in the inner shell, a plurality of multifunctional measuring pipes are arranged in the inner shell, an inflation hole is formed in the outer shell, a groove is formed in the counter-force frame, and a sensor hole is formed in the groove; the test method comprises the following steps: loading a coal rock test piece, heating the multifunctional measuring tube in a partitioned manner to simulate a ground temperature gradient, inflating step by step to construct partitioned gas pressure, and applying stress to the three-way oil cylinder to simulate field stress distribution, so as to realize coupled partitioned loading of ground temperature, gas and stress. According to the invention, the complex occurrence environment of the deep non-uniform stratum can be truly restored, the problem that the existing device cannot simulate the zoning temperature and pressure stress characteristics is solved, and a scientific and reliable test platform is provided for deep coal mine dynamic disaster mechanism research.
Owner:CHINA UNIV OF MINING & TECH

High ground temperature tunnel sprayed concrete performance monitoring device

The invention belongs to the technical field of concrete performance monitoring, and particularly relates to a high-ground-temperature tunnel sprayed concrete performance monitoring device which comprises a high-temperature drying oven, an air pump is fixedly connected to the side face of the high-temperature drying oven, and a connecting plate is fixedly connected to the air outlet end of the air pump. The first fixing frame and the second fixing frame move downwards and are inserted into the concrete, then the first fixing frame and the second fixing frame are rotated, the concrete is stirred, the temperature difference between the outer-layer concrete and the inner-layer concrete is reduced, and therefore the accuracy of the detection result can be improved; the cohesiveness of the concrete after being heated is detected according to the difficulty degree of rotation of the first fixing frame and the second fixing frame in the concrete, the mechanical property of the concrete after being heated is detected according to the change of the detected numerical value in the process that the pressure sensor is inserted into the concrete, the monitoring steps are simple, and the detection accuracy is high. And the monitoring accuracy is relatively ideal.
Owner:SOUTHWEST JIAOTONG UNIV

Air conditioner energy-saving operation system based on ground temperature assistance

The invention discloses an air conditioner energy-saving operation system based on ground temperature assistance, and belongs to the technical field of energy-saving devices. Comprising an outdoor unit body, a condenser is arranged on the rear surface of the outdoor unit body, a spraying mechanism is arranged behind the outdoor unit body, and a collecting mechanism is arranged below the spraying mechanism; when a motor is controlled to drive two first reciprocating lead screws to rotate synchronously, a first nut plate reciprocates up and down along the first reciprocating lead screws to drive a connecting rod and a moving plate to move up and down synchronously, meanwhile, a shifting gear on the connecting rod is in meshing transmission with a tooth block on a vertical plate, the connecting rod drives the moving plate to swing up and down synchronously in the up-down moving process, and the moving plate is driven to move up and down synchronously. Therefore, the spraying range of the spray head is expanded, all-directional spraying can be achieved according to the heating conditions of different areas of the condenser, the heat dissipation efficiency of the condenser is remarkably improved, and the operation load of an air conditioner compressor is further reduced in cooperation with a main circulating pipeline for ground temperature auxiliary heat exchange.
Owner:JINAN THERMAL POWER GRP CO LTD +1

Artificial Turf System for Park Golf

ActiveKR102993429B1YarnGround temperature
The present invention relates to an artificial turf system for park golf with improved isotropic ball rolling performance, which provides uniform resistance regardless of the direction of impact through infrared blocking and a surface embossing structure for reducing ground temperature, heat dissipation through a C-shaped or omega (Ω)-shaped cross-sectional structure, and 1:1 synchronization of weaving spacing. Specifically, the artificial turf system for park golf comprises a turf yarn that dissipates heat by having an embossing groove formed on its surface and a C-shaped or omega (Ω)-shaped cross-sectional shape, and a turf yarn that penetrates and is planted, and a support layer coated on one side and a turf yarn, and a different type of filler formed of a plurality of particles with different particle shapes and sizes.
Owner:JMCGR CO LTD