CN116067038A - Solar energy refrigeration hot rod system - Google Patents
Solar energy refrigeration hot rod system Download PDFInfo
- Publication number
- CN116067038A CN116067038A CN202310080982.9A CN202310080982A CN116067038A CN 116067038 A CN116067038 A CN 116067038A CN 202310080982 A CN202310080982 A CN 202310080982A CN 116067038 A CN116067038 A CN 116067038A
- Authority
- CN
- China
- Prior art keywords
- heat
- power
- compressor
- electric energy
- refrigeration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a solar heating and cooling rod system, which comprises a heating rod, a refrigerating system and a power generation system. The hot rod is arranged in a frozen soil area, heat of frozen soil is transmitted to the outside, the refrigerating system generates cold energy, the cold energy is transmitted to the hot rod, and the power generation system supplies power to the refrigerating system based on wind-solar power generation. The invention can drive the refrigerating system based on solar energy and wind energy, and the cold quantity generated by the refrigerating system assists the hot rod to refrigerate, so that the hot rod can have good heat conduction effect on frozen soil in warm seasons, and the full-season protection on the frozen soil is realized. The solar refrigerating and heating rod system in the embodiment can be widely applied to the field of roadbed and pile foundation engineering in permafrost regions, and has important significance for engineering construction in cold regions. The invention is widely applied to the technical field of frozen soil treatment.
Description
Technical Field
The invention relates to the technical field of frozen soil treatment, in particular to a solar refrigerating and heating rod system.
Background
Frozen soil refers to various rocks and soils containing ice at a temperature below zero degrees celsius. Generally, it can be classified into short-time frozen soil (hours/days to half months)/season frozen soil (half months to months) and permafrost soil (also called permanent frozen soil, refers to a frozen and unmelted soil layer lasting for two or more years). The permafrost region is also divided into a high-temperature extremely unstable region, a high-temperature unstable frozen soil, a low-temperature basic stable region and a ground temperature stable region according to the frozen soil temperature.
Frozen soil has rheological properties, and its long-term strength is far lower than that of instant strength. Frozen soil is extremely sensitive to temperature, and thermodynamic properties and engineering stability properties are closely related to temperature. Because of these characteristics, construction of engineering structures in frozen soil areas must face two major hazards: frost heaving and thawing. Engineering activities such as railway construction, expressway construction and transmission line construction are carried out on the frozen soil, and factors such as strong heat absorption of asphalt pavement, hydration heat disturbance of concrete pile foundation and the like can cause adverse effects on the frozen soil. On the other hand, frozen soil is also continuously degraded by global warming. Therefore, there is a need for protection of frozen earth, especially permafrost.
The related art currently uses a hot bar for frozen soil protection. The heat bar is a high-efficiency unidirectional heat transfer device, and is applied to railway, highway, power transmission tower foundation, oil pipeline and cold region tunnel engineering in the past. When the ambient temperature is lower than the frozen soil temperature, the refrigerant (liquid ammonia) in the hot rod absorbs heat in the evaporator to evaporate, and the steam is liquefied by heat release in the condenser and flows back to the evaporator, so that the refrigerant is circulated repeatedly, and the effect of cooling the frozen soil for many years is achieved. However, since the hot bar must function with an environmental temperature lower than the frozen soil temperature, i.e., it can function only in cold seasons, and the warm season cannot perform the refrigerating effect, the overall protection effect of the frozen soil by the current hot bar technology needs to be improved.
Disclosure of Invention
Aiming at the technical problems of narrow application area and the like of the conventional frozen soil protection technology based on a hot rod, the invention aims to provide a solar refrigeration hot rod system. The solar refrigeration hot bar system comprises:
a heat bar; the hot rod is used for being arranged in a frozen soil area and conveying heat of frozen soil to the outside;
a refrigeration system; the refrigerating system is used for generating cold energy and conveying the cold energy to the hot rod;
a power generation system; the power generation system is used for supplying power to the refrigeration system based on wind-solar power generation.
Further, the hot rod comprises carbon seamless steel pipes, fins, heat insulation materials and refrigerants;
the carbon seamless steel pipe comprises a condensing section, a reinforcing section and an evaporating section, wherein the condensing section is a part exposed to air, and the evaporating section is a part buried in frozen soil;
the fins are arranged outside the condensation section, and the heat insulation material is wrapped outside the reinforcement section.
The refrigerant is arranged in the carbon seamless steel tube.
Further, the refrigeration system comprises a compressor, an air-cooled condenser, a capillary tube and a spiral copper tube;
the compressor, the air-cooled condenser, the capillary tube and the spiral copper tube form a refrigeration closed circuit;
the spiral copper pipe is wound outside the strengthening section.
Further, the power generation system comprises a fan, a photovoltaic panel, an electric energy controller and a storage battery;
the electric energy controller is respectively connected with the fan, the photovoltaic panel and the storage battery;
the electric energy controller is connected with the compressor;
the electric energy controller is used for unidirectionally acquiring electric energy from the fan and the photovoltaic panel, carrying out bidirectional electric energy transmission with the storage battery and supplying the acquired electric energy to the compressor and the condenser cooling fan.
Further, the electric energy controller is used for working in a first operation mode, a second operation mode, a third operation mode or a fourth operation mode;
in the first operation mode, the electric energy controller acquires electric energy from the fan and/or the photovoltaic panel, supplies electric energy to the compressor at not lower than rated power, and transmits the remaining electric energy to the storage battery;
in the second operation mode, the electric power controller obtains electric power from the storage battery to supply electric power to the compressor at not lower than a rated power;
in the third mode of operation, the electrical energy controller obtains electrical energy from the fan and/or the photovoltaic panel, supplies electrical energy to the compressor at less than rated power, and delivers remaining electrical energy to the battery;
in the fourth mode of operation, the electrical energy controller draws electrical energy from the battery to supply electrical energy to the compressor at less than rated power.
Further, the electric energy controller is used for acquiring environmental parameters and controlling the power for supplying electric energy to the compressor according to the environmental parameters.
Further, the controlling the power of supplying the electric energy to the compressor according to the environmental parameter includes:
calculating a cooling load Q according to the formula q=cvΔt; wherein C is the volume heat capacity of the soil body, V is the volume of the soil body, and DeltaT is the temperature rise amplitude of frozen soil;
the annual average refrigerating capacity Q of the hot rod is calculated according to the following formula T ；
Q T ＝∫qdt
eh＝2.75+1.51v 0.2
Wherein q is the refrigerating power of the hot rod, T is the refrigerating time of the hot rod, and T s Is the soil temperature, T a Is the air temperature, R f R is the surface thermal resistance of the condenser s For the thermal resistance of soil around the evaporation section, A s The heat dissipation area of the condenser is eh, the surface heat exchange coefficient of the condenser, lambda is the heat conduction coefficient of the soil body of the evaporation section, z is the length of the evaporation section, and v is the average air speed of the atmosphere;
according to formula Q c ＝Q-Q T Calculating the compression refrigerating capacity Q c ；
According to the formula p=q c The/t compression refrigeration determines the compressor power P.
Further, the electric energy controller is provided with a local storage space, the power generation system further comprises a first temperature sensor and a second temperature sensor, the first temperature sensor is installed at the condensation section, and the second temperature sensor is installed at the evaporation section.
Further, the acquiring the environmental parameter includes:
reading the volume heat capacity C of the soil body, the volume V of the soil body, the refrigerating power q of a heat rod, the refrigerating time t of the heat rod and the surface thermal resistance R of a condenser from the local storage space f Thermal resistance R of soil around evaporation section s Heat radiating area A of condenser s The surface heat exchange coefficient eh of the condenser, the soil body heat conduction coefficient lambda of the evaporation section and the length z of the evaporation section;
measuring the air temperature T by the first temperature sensor a The soil temperature T is measured by the second temperature sensor s And the temperature rise amplitude delta T of frozen soil;
and measuring the average atmospheric wind speed v by the fan.
Further, the measuring of the average wind speed v of the atmosphere by the fan includes:
detecting the power generation voltage and/or power generation current of the fan;
the atmospheric average wind speed v is determined from the generated voltage and/or the generated current.
The beneficial effects of the invention are as follows: the solar refrigeration hot rod system in the embodiment can drive the refrigeration system based on solar energy and wind energy, and the cold quantity generated by the refrigeration system assists the hot rod to refrigerate, so that the hot rod can have good heat conduction effect on frozen soil in warm seasons, and full-season protection on the frozen soil is realized.
Drawings
Fig. 1 is a block diagram of a solar refrigeration heat bar system in an embodiment.
Detailed Description
In this embodiment, referring to fig. 1, the solar heating hot bar system includes a power generation system S1, a cooling system S2, and a hot bar S3.
Referring to fig. 1, the heat rod S1 comprises a carbon seamless steel pipe, which is divided into a condensation section 10, a reinforcement section 12 and an evaporation section 14 from top to bottom, and a layer of heat insulation material 13 is wrapped outside the reinforcement section 12. In the case of using the hot rod, the carbon seamless steel pipe is inserted in the frozen soil region in which the condensing section 10 is exposed to the air, the evaporating section 14 is buried in the frozen soil, and most of the reinforcing section 12 is buried in the frozen soil. Fins 11 are installed outside the condensing section 10 to increase the contact area with air. The refrigerant 15 is contained in the carbon seamless steel tube, and specifically, the refrigerant 15 may be ammonia.
In this embodiment, when the heat rod S1 is installed in the frozen soil area, the refrigerant 15 can absorb the heat of the frozen soil in the evaporation section 14 and transfer the heat to the condensation section 10, and the condensation section 10 releases the heat into the air, so as to avoid the serious temperature rise caused by the accumulation of the heat in the frozen soil.
Referring to fig. 1, a power generation system S1 includes a blower fan 1, a photovoltaic panel 2, a power controller 3, and a battery 4. The fan 1 is connected with an electric energy receiving end of the electric energy controller 3, so that electric energy generated by wind power generation of the fan 1 can flow into the electric energy controller 3 in one direction; the photovoltaic panel 2 is connected with the electric energy receiving end of the electric energy controller 3, so that electric energy generated by photovoltaic power generation of the photovoltaic panel 2 can flow into the electric energy controller 3 in one direction; the storage battery 4 is connected with the discharging and charging dual-purpose end of the electric energy controller 3, the electric energy controller 3 controls the electric energy flow direction of the discharging and charging dual-purpose end through an internal switching device, and when the electric energy of the electric energy controller 3 is insufficient and the electric energy of the storage battery 4 is sufficient, the electric energy can be discharged by the storage battery 4 and flows from the storage battery 4 to the electric energy controller 3; when the electric power controller 3 has surplus electric power and the storage battery 4 is not fully charged, the electric power controller 3 may output electric power to the storage battery 4 to charge the storage battery 4.
Referring to fig. 1, the refrigeration system S2 includes a compressor 5, a condenser heat dissipation fan 6, an air-cooled condenser 7, a capillary tube 8, and a spiral copper tube 9. The output end of the compressor 5 is connected with the input end of the air-cooled condenser 7, the output end of the air-cooled condenser 7 is connected with the input end of the capillary tube 8, the output end of the capillary tube 8 is connected with the input end of the spiral copper tube 9, and the output end of the spiral copper tube 9 is connected with the input end of the compressor 5, so that a refrigeration closed circuit is formed. The condenser heat radiation fan 6 performs blowing heat radiation to the air-cooled condenser 7.
The electric energy output end of the electric energy controller 3 is connected with the compressor 5 and the condenser cooling fan 6, and provides electric energy required by work for the compressor 5 and the condenser cooling fan 6.
In this embodiment, the compressor 5 may be driven using a dc variable frequency motor, thereby achieving an efficient energy-saving effect. An ac motor may be used to drive the compressor 5, and an inverter may be provided to invert the dc power supplied from the power controller 3 into ac power. The motor used for the condenser heat dissipation fan 6 may be a direct-current variable-frequency motor or an alternating-current motor.
When the refrigeration system S2 is operated, the refrigerant flows in the refrigeration circuit, thereby generating cold in the coil copper pipe 9. The spiral copper pipe 9 is wound outside the strengthening section 12 of the carbon seamless steel pipe, so that cold energy is transmitted to the hot rod S3, the hot rod S3 can superimpose the cold energy transmitted by the refrigerating system S2 on the basis of the heat conduction capacity of the refrigerant, and the capacity of the hot rod S3 for absorbing heat from frozen soil is enhanced.
In summary, the solar refrigeration hot rod system in this embodiment can drive the refrigeration system based on solar energy and wind energy, and assist the hot rod to refrigerate through the cold energy generated by the refrigeration system, so that the hot rod can also have a good heat conduction effect on frozen soil in warm seasons, and full-season protection on the frozen soil is realized. The solar refrigerating and heating rod system in the embodiment can be widely applied to the field of roadbed and pile foundation engineering in permafrost regions, and has important significance for engineering construction in cold regions.
In this embodiment, the electric energy controller includes a control device having functions of detection, control, data processing, and the like, in addition to a switching device for performing electric energy flow direction control. Specifically, the control device may be a single-chip microcomputer. The control device can work in different operation modes such as a first operation mode, a second operation mode, a third operation mode or a fourth operation mode, and the like, and in each operation mode, the control device respectively sends corresponding control signals to the switching device so as to control the flow direction of electric energy.
(1) When the power generation system can normally generate power in the daytime in warm seasons, the control device can work in a first operation mode, and the electric energy generated by the fan and the photovoltaic panel is supplied to the compressor by the electric energy controller at the moment so as to be not lower than the rated power of the compressor in the refrigeration system, and therefore the electric energy generated by the fan and the photovoltaic panel is preferentially supplied to the refrigeration system to work to generate cold energy supplied to the hot rod; the control device transmits the remaining electric energy to the storage battery to charge the storage battery. Thus, the first mode of operation may be referred to as a wind-solar direct drive compressed high frequency cooling mode.
(2) When the power supply of the power generation system is insufficient in special days such as at night or in overcast and rainy days in warm seasons, the control device can work in a second operation mode, the storage battery discharges at the moment, generated electric energy enters the control device, and the control device supplies electric energy to the compressor at the rated power which is not lower than the rated power of the compressor in the refrigeration system, so that the electric energy generated by the storage battery is supplied to the refrigeration system to work to generate cold energy supplied to the hot rod. Thus, the second mode of operation may be referred to as a battery-driven compression low frequency cooling mode.
(3) When the ambient temperature is lower than the frozen soil temperature in cold seasons and the wind-solar power generation system generates enough power in daytime, the control device can work in a third operation mode, the heat rod has a strong heat conduction function, the electric energy generated by the fan and the photovoltaic panel is supplied to the compressor by the electric energy controller with rated power lower than that of the compressor in the refrigerating system, the cold energy supplied to the heat rod is generated, the heat in the frozen soil can be dredged by superposition of the cold energy of the heat rod and the heat conduction function of the heat rod, and the control device conveys the residual electric energy to the storage battery to charge the storage battery. Therefore, the third operation mode may be referred to as a wind-solar power generation direct-drive compression high-frequency refrigeration and thermosiphon refrigeration parallel operation mode.
(4) When the wind-solar power generation system is insufficient in power generation in cold seasons or in special days such as snowfall, the control device can work in a fourth operation mode, the hot rod has a strong heat conduction function, the storage battery discharges to generate electric energy, the electric energy controller supplies electric energy to the compressor at the rated power lower than that of the compressor in the refrigerating system to generate cold energy supplied to the hot rod, and the heat in frozen soil can be dredged by superposition of the cold energy of the hot rod and the heat conduction function of the hot rod. Thus, the fourth mode of operation may be referred to as a battery-driven compression low frequency refrigeration and thermosiphon refrigeration parallel mode of operation.
In this embodiment, the power controller may control the amount of power supplied to the compressor in addition to supplying the power satisfying the rated power to the compressor or stopping the supply of the power to the compressor.
In the embodiment, the electric energy controller is provided with an internal storage space, and the volume heat capacity C and the volume V of the soil body in the frozen soil area, the refrigeration power q of the heat rod, the refrigeration time t of the heat rod and the surface thermal resistance R of the condenser can be obtained by on-site investigation and measurement and product parameter inquiry f Thermal resistance R of soil around evaporation section s Heat radiating area A of condenser s The parameters of the condenser surface heat exchange coefficient eh, the evaporation section soil body heat conduction coefficient lambda, the evaporation section length z and the like. These parameters are stored in an internal memory space of the power controller.
In this embodiment, the power generation system is provided with a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged at the condensing section of the hot rod and can measure the air temperature T a The method comprises the steps of carrying out a first treatment on the surface of the The second temperature sensor is arranged at the evaporation section of the hot rod and can measure the soil temperature T s . The first temperature sensor will measure the air temperature T a Sending the soil temperature T to an electric energy controller, wherein the second temperature sensor is used for measuring the soil temperature T s And sending the data to the electric energy controller.
In this embodiment, when the wind turbine transmits electric energy generated by wind power generation to the electric energy controller, the electric energy controller measures a power generation voltage and/or a power generation current of the wind turbine, queries to obtain a wind turbine rotational speed according to a corresponding relationship between the power generation voltage and/or the power generation current and the wind turbine rotational speed, and queries to obtain an atmospheric average wind speed v according to a corresponding relationship between the wind turbine rotational speed and the atmospheric average wind speed.
In this embodiment, parameters such as the volumetric heat capacity C of the soil body obtained by the electric energy controller are related to the environment, and may be collectively referred to as environmental parameters.
After obtaining the environmental parameters, the power controller performs the following steps:
s1, calculating a cooling load Q according to a formula Q=CV delta T; wherein C is the volume heat capacity of the soil body, V is the volume of the soil body, and DeltaT is the temperature rise amplitude of frozen soil;
s2, calculating the annual average refrigerating capacity Q of the hot rod according to the following formula T ；
Q T ＝∫qdt
eh＝2.75+1.51v 0.2
Wherein q is the refrigerating power of the hot rod, T is the refrigerating time of the hot rod, and T s Is the soil temperature, T a Is the air temperature, R f R is the surface thermal resistance of the condenser s For the thermal resistance of soil around the evaporation section, A s The heat dissipation area of the condenser is eh, the surface heat exchange coefficient of the condenser, lambda is the heat conduction coefficient of the soil body of the evaporation section, z is the length of the evaporation section, and v is the average air speed of the atmosphere;
s3, according to a formula Q c ＝Q-Q T Calculating the compression refrigerating capacity Q c ；
S4. according to formula p=q c The/t compression refrigeration determines the compressor power P.
By executing the steps S1-S4, the electric energy controller calculates the cold quantity which is required to be output by the refrigerating system in order to meet the requirement of good heat conduction of the hot rod on the frozen soil under the current environmental parameters, and the power P which is required to be transmitted to a compressor in the refrigerating system is required. The electrical energy controller delivers electrical energy of power P to a compressor in the refrigeration system. When the power generation power of the power generation system is larger than P, the electric energy controller supplies power to the storage battery by using the residual power; when the generated power of the power generation system is smaller than P, the storage battery discharges to complement the power P.
By executing the steps S1-S4, the dynamic control of the power of the refrigerating system can be realized, so that the cooling capacity generated by the refrigerating system and the heat conduction effect of the hot rod are overlapped, the heat dissipation requirement of frozen soil can be met, the full utilization of the power generated by the power generation system and the discharge power of the storage battery is realized, and the outdoor continuous working capacity of the solar refrigerating and heating rod system is ensured.
In summary, the solar refrigeration hot bar system in the embodiment has the following advantages:
(1) The new energy utilization technology and the refrigeration technology are combined, wind power and photovoltaic hybrid power generation is adopted, and instability of power generation by simply relying on wind power or photovoltaic is relieved;
(2) Clean energy sources such as abundant solar energy and wind energy in the field, especially in plateau areas can be fully utilized, and green refrigeration is realized;
(3) The intelligent electric energy controller and the direct-current variable-frequency compressor are adopted, so that the operation stability of the compression refrigeration system is greatly improved.
(4) Solar refrigeration and hot rod phase change refrigeration are combined, and all-weather 24-hour continuous refrigeration can be realized.
(5) The solar refrigeration and heating rod has simple structure, and other parts of the compression refrigeration system except the spiral copper pipe can be independently packaged, so that the transportation and the field installation are convenient.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this disclosure in the drawings. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be appreciated that embodiments of the invention may be implemented or realized by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer readable storage medium configured with a computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, in accordance with the methods and drawings described in the specific embodiments. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Furthermore, the operations of the processes described in the present embodiments may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes (or variations and/or combinations thereof) described in this embodiment may be performed under control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications), by hardware, or combinations thereof, that collectively execute on one or more processors. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable computing platform, including, but not limited to, a personal computer, mini-computer, mainframe, workstation, network or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and so forth. Aspects of the invention may be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and/or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, which when read by a computer, is operable to configure and operate the computer to perform the processes described herein. Further, the machine readable code, or portions thereof, may be transmitted over a wired or wireless network. When such media includes instructions or programs that, in conjunction with a microprocessor or other data processor, implement the steps described above, the invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media. The invention also includes the computer itself when programmed according to the methods and techniques of the present invention.
The computer program can be applied to the input data to perform the functions described in this embodiment, thereby converting the input data to generate output data that is stored to the non-volatile memory. The output information may also be applied to one or more output devices such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.
Claims (10)
1. A solar refrigeration and heating rod system, characterized in that the solar refrigeration and heating rod system comprises:
a heat bar; the hot rod is used for being arranged in a frozen soil area and conveying heat of frozen soil to the outside;
a refrigeration system; the refrigerating system is used for generating cold energy and conveying the cold energy to the hot rod;
a power generation system; the power generation system is used for supplying power to the refrigeration system based on wind-solar power generation.
2. The solar refrigeration heat bar system of claim 1, wherein the heat bar comprises carbon seamless steel tubes, fins, insulation material and coolant;
the carbon seamless steel pipe sequentially comprises a condensation section, a strengthening section and an evaporation section from top to bottom, wherein the condensation section is a part exposed to air, the strengthening section is an active refrigeration area of the refrigeration system, and the evaporation section is a part buried in frozen soil;
the fins are arranged outside the condensing section, and the heat insulation material is wrapped outside the spiral copper pipe of the reinforcing section.
The refrigerant is arranged in the carbon seamless steel tube.
3. The solar refrigeration heat bar system of claim 2 wherein the refrigeration system comprises a compressor, an air-cooled condenser, a capillary tube, and a spiral copper tube;
the compressor, the air-cooled condenser, the capillary tube and the spiral copper tube form a refrigeration closed circuit;
the spiral copper pipe is wound outside the strengthening section.
4. The solar refrigeration heat bar system of claim 3 wherein the power generation system comprises a blower, a photovoltaic panel, an electrical energy controller, and a battery;
the electric energy controller is respectively connected with the fan, the photovoltaic panel and the storage battery;
the electric energy controller is connected with the compressor;
the electric energy controller is used for unidirectionally acquiring electric energy from the fan and the photovoltaic panel, carrying out bidirectional electric energy transmission with the storage battery and supplying the acquired electric energy to the compressor and the condenser cooling fan.
5. The solar refrigeration heat bar system of claim 4, wherein the electrical energy controller is configured to operate in a first mode of operation, a second mode of operation, a third mode of operation, or a fourth mode of operation;
in the first operation mode, the electric energy controller acquires electric energy from the fan and/or the photovoltaic panel, supplies electric energy to the compressor at not lower than rated power, and transmits the remaining electric energy to the storage battery;
in the second operation mode, the electric power controller obtains electric power from the storage battery to supply electric power to the compressor at not lower than a rated power;
in the third mode of operation, the electrical energy controller obtains electrical energy from the fan and/or the photovoltaic panel, supplies electrical energy to the compressor at less than rated power, and delivers remaining electrical energy to the battery;
in the fourth mode of operation, the electrical energy controller draws electrical energy from the battery to supply electrical energy to the compressor at less than rated power.
6. The solar refrigeration heat bar system of claim 4 wherein the electrical energy controller is configured to obtain an environmental parameter and to control the power of the electrical energy supplied to the compressor in accordance with the environmental parameter.
7. The solar refrigeration heat bar system of claim 6 wherein the controlling the power of the supply of electrical energy to the compressor in accordance with the environmental parameter comprises:
calculating a cooling load Q according to the formula q=cvΔt; wherein C is the volume heat capacity of the soil body, V is the volume of the soil body, and DeltaT is the temperature rise amplitude of frozen soil;
the annual average refrigerating capacity Q of the hot rod is calculated according to the following formula T ；
Q T ＝∫qdt
eh＝2.75+1.51v 0.2
Wherein q is the refrigerating power of the hot rod, T is the refrigerating time of the hot rod, and T s Is the soil temperature, T a Is the air temperature, R f R is the surface thermal resistance of the condenser s For the thermal resistance of soil around the evaporation section, A s For the heat dissipation area of the condenser, eh is the heat exchange coefficient of the surface of the condenser, lambda is the heat conduction coefficient of the soil body of the evaporation section, and z isThe length of the evaporation section, v is the average air speed of the atmosphere;
according to formula Q c ＝Q-Q T Calculating the compression refrigerating capacity Q c ；
According to the formula p=q c The/t compression refrigeration determines the compressor power P.
8. The solar refrigeration heat bar system of claim 6 or 7 wherein the electrical energy controller is provided with a local storage space, the power generation system further comprising a first temperature sensor mounted to the condensing section and a second temperature sensor mounted to the evaporating section.
9. The solar refrigeration heat bar system of claim 8, wherein the obtaining environmental parameters comprises:
reading the volume heat capacity C of the soil body, the volume V of the soil body, the refrigerating power q of a heat rod, the refrigerating time t of the heat rod and the surface thermal resistance R of a condenser from the local storage space f Thermal resistance R of soil around evaporation section s Heat radiating area A of condenser s The surface heat exchange coefficient eh of the condenser, the soil body heat conduction coefficient lambda of the evaporation section and the length z of the evaporation section;
measuring the air temperature T by the first temperature sensor a The soil temperature T is measured by the second temperature sensor s And the temperature rise amplitude delta T of frozen soil;
and measuring the average atmospheric wind speed v by the fan.
10. The solar refrigeration heat bar system of claim 9, wherein the measuring of the average atmospheric wind velocity v by the blower comprises:
detecting the power generation voltage and/or power generation current of the fan;
the atmospheric average wind speed v is determined from the generated voltage and/or the generated current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080982.9A CN116067038A (en) | 2023-01-17 | 2023-01-17 | Solar energy refrigeration hot rod system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080982.9A CN116067038A (en) | 2023-01-17 | 2023-01-17 | Solar energy refrigeration hot rod system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116067038A true CN116067038A (en) | 2023-05-05 |
Family
ID=86176596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310080982.9A Pending CN116067038A (en) | 2023-01-17 | 2023-01-17 | Solar energy refrigeration hot rod system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116067038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739547A (en) * | 2023-12-18 | 2024-03-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel all Ji Re rod refrigerating device for permafrost region and construction method |
-
2023
- 2023-01-17 CN CN202310080982.9A patent/CN116067038A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739547A (en) * | 2023-12-18 | 2024-03-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel all Ji Re rod refrigerating device for permafrost region and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107724377B (en) | Compression refrigeration system for preventing permafrost degradation | |
| Yan et al. | A seasonal cold storage system based on separate type heat pipe for sustainable building cooling | |
| Li et al. | Experimental investigation on the performance of a solar powered lithium bromide–water absorption cooling system | |
| Yu et al. | Experimental assessment of solar absorption-subcooled compression hybrid cooling system | |
| KR101535384B1 (en) | Heating system of heat pump using solar energy and underground heat storage | |
| CN101275782B (en) | Heat pump air conditioning water supply machine | |
| CN116067038A (en) | Solar energy refrigeration hot rod system | |
| Hu et al. | Design and experimental study of a solar compression refrigeration apparatus (SCRA) for embankment engineering in permafrost regions | |
| Liu et al. | Experimental research on the property of water source gas engine-driven heat pump system with chilled and hot water in summer | |
| CN101769654B (en) | Heating system for compression heat pump and heating method thereof | |
| Lu et al. | Experimental research on the vapor injected photovoltaic-thermal heat pump for heating, power generation and refrigeration | |
| Hu et al. | Proposed application of a geothermal heat pump technique to address frost damage of embankments in cold regions | |
| JP2015117918A (en) | Heat accumulation system and heat accumulation system control method | |
| CN207685815U (en) | Compression-type refrigerating system for preventing Permafrost Degeneration | |
| CN110285635A (en) | A kind of constant temperature fresh-keeping base station based on natural energy resources operation | |
| Sun et al. | Design and cooling performance analysis of the temperature-controlled pile (TCP) in permafrost regions | |
| CN202149554U (en) | Ground-coupled system for processing fresh air and supplying domestic hot water | |
| CN105650781A (en) | Cold and heat energy storage air conditioner system utilizing season transition | |
| Sun et al. | Field test study of a novel solar refrigeration pile in permafrost regions | |
| KR20190043337A (en) | Geothemal energy-heating and cooling system using collaborative control | |
| CN204179179U (en) | The small-sized heat pump heat management system of lithium ion battery | |
| CN208419040U (en) | A kind of cold supply system that heat pipe is coupled with ground heat exchanger and solar panel | |
| JPH1038347A (en) | Heat accumulative type air conditioner | |
| CN206683297U (en) | A kind of new off-grid type solar domestic refrigerator | |
| CN107843048A (en) | It is a kind of to freeze passive car refrigerator with the energy storage plate that thaws rapidly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |