CN207685815U - Compression-type refrigerating system for preventing Permafrost Degeneration - Google Patents
Compression-type refrigerating system for preventing Permafrost Degeneration Download PDFInfo
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- CN207685815U CN207685815U CN201721590728.XU CN201721590728U CN207685815U CN 207685815 U CN207685815 U CN 207685815U CN 201721590728 U CN201721590728 U CN 201721590728U CN 207685815 U CN207685815 U CN 207685815U
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Abstract
The utility model discloses a kind of compression-type refrigerating systems for preventing Permafrost Degeneration, are related to permafrost degradation Prevention Technique field, including refrigeration unit, temperature signal collection unit, centralized control unit, power supply unit；The output end of the input terminal connection centralized control unit of refrigeration unit, regulates and controls the temperature of frozen soil；Temperature signal collection unit connects an input terminal of centralized control unit, the temperature signal for acquiring frozen soil, and the temperature signal of frozen soil is sent to centralized control unit；Centralized control unit controls being turned on and off for refrigeration unit according to the temperature signal of frozen soil；Another input terminal of the output end connection centralized control unit of power supply unit, centered on control unit and refrigeration unit power supply is provided.The utility model is compact-sized, and floor space is small, is driven using solar energy, wind power generation, energy conservation and environmental protection, can realize and carry out reliable and stable intelligent control to frozen soils temperature in real time, overcomes the Seasonal limitation of permafrost degradation prevention.
Description
Technical field
The utility model is related to permafrost degradation Prevention Technique fields, and in particular to a kind of for preventing Permafrost Degeneration
Compression-type refrigerating system.
Background technology
China's frozen soil distribution area is huge, ever-frozen ground be mainly distributed on the northern big Xiaoxinanlin Mountains in northeast, Altai Mountain and
Altai Mountains and Qinghai-Tibet Platean account for about the 22.4% of national territorial area.With the extensive development of China's infrastructure construction, road work
Journey is increasingly becoming the important component of Permafrost Area development ＆ construction.In Permafrost Area during road construction, frozen soil
This special geobody is the research object for needing to consider first.Frozen soil is a kind of material extremely sensitive to temperature, especially right
In temperature less than the frozen soil within the scope of 1~2 DEG C of ice water phase transition temperature, temperature change can cause the cementing strength of ice crystal in frozen soil with
And significant changes occur for unfrozen water content, and then produce serious influence to its physico-mechanical properties.Due to construction disturbance and right
The change of original natural surface condition, roadbed will be carried out inevitably with lower contacts ever-frozen ground during construction and operation
Heat exchange simultaneously influences each other.Under the coupling of the environmental loads such as water, heat, power, ever-frozen ground is susceptible to temperature and increases, melts
The degradation phenomenas such as change, and then roadbed is caused the heat evil such as depression, slump occur.
In the case where engineering specifications is certain, temperature be lead to the key factor of subgrade defect, and ensure it is all anti-
Control measure effectively but disease still remain in the case of unique controllable factor.Therefore, frozen soil engineering circle builds the phase in Qinghai-Tibet Railway
Between propose to pass through high temperature permafrost area using the method for active cooling roadbed.Currently, development and application mainly include slabstone,
Block stone air cooling structure, ventilation duct radiator structure and heat pipe.The working mechanism of above-mentioned measure is based on the passive of natural temperature differential driving
Diabatic process just can carry out cooling cold-storage when mainly temperature is less than formation temperature in winter to ever-frozen ground, and melt sternly in heat
The warm season cooling effect of weight is limited.Block/crushed stone, ventilation duct mainly adjust heat-transfer effect by geometric parameter, optimize phase
To difficulty.Even the highest heat pipe of cooling efficiency, which remains on, belongs to passive type heat transfer element, phase is driven by ground vapour temperature difference
Become heat exchange cycle.Due to the invertibity of direction of heat flow, heat pipe can only be in cold season by storing up or feeding cold in advance to the protection of frozen soil
Realize, into warm season after must be stopped.Ventilation duct is buried in frozen soil foundation utilizes environment temperature regulation subgrade frozen soil
Temperature, but it is unable to active control cold, subgrade stability regulation and control are affected by environment, are unable to ensure subgrade stability.
With the more massive transport development planning of the Climate Evolution trend of global warming and China, existing area road for many years
Base thermal stability maintenance measure has been unable to meet application requirement.Therefore, it is necessary to research and develop, season matching is good, heat transfer efficiency higher
Roadbed active refrigeration method and device.
Refrigerating method and technology are a time-honored subjects, include mainly steam compression type, thermoelectric (al) type, thermal drivers formula
(absorption, absorption type) must all have the compensation process, including electric energy, mechanical energy and thermal energy etc. of consumption energy in principle.Its
In, vapour compression refrigeration consumes electrical energy drive steam compression type refrigeration cycle, and compression refrigeration is the refrigeration side being most widely used
Formula, technology maturation is reliable, and coefficient of refrigerating performance has big, efficient, compact-sized, reliable operation of refrigerating capacity etc. significantly up to 5.0 or more
Advantage.
Permafrost Area roadbed heat evil has many special characters such as dispersibility is strong, distributed depth is big, therefore Refrigeration Technique
Not only to meet the requirement of general subgrade maintenance technology applied to subgrade engineering, also to meet the system integration and miniaturization, minimum system
The Refrigeration Techniques requirement such as cold temperature and independent easily drive energy supply.In particular, one along the line project of Permafrost Area
As infrastructure fall behind, by along grid-connected supply of electric power roadbed long range compression-type refrigeration application obviously it is unrealistic.Luckily
Ground is, on the one hand, compression refrigeration equipment is ripe in integrated and miniaturization technology in recent years；On the other hand, all kinds of
New energy use technology continues to develop, including photovoltaic generation, wind-power electricity generation and earth source heat pump, solar energy heating etc., widely
Applied to fields such as supply of electric power, living environment's adjustings.Especially in terms of power generation, solar-wind energy complemental power-generation technology is
One of focus on research direction of new energy field.
China Permafrost Area is mainly distributed on Qinghai-Tibet Platean, and Qinghai-Tibet Platean be China's solar energy and wind energy distribution the most
The region of enrichment.Over Qinghai-xizang Plateau clean and it is thin, transparency is good；Sunshine-duration is long, year sunshine time be 3200~
3300h/a；Low latitudes, sun altitude is big, and intensity of solar radiation is up to 2558 kWh/m2.a, is only second to the Sahara great Sha
Desert, occupies second place of the world, and Solar use is with favourable conditions.Simultaneously as plateau climate, Qinghai-Tibet wind speed is high, wind energy resources
Same abundant, the wind speed whole year accumulation greater than, equal to 3m/s reaches 6500h, and effective wind energy density is between 150~200W/m2.It can
To find out, China's ever-frozen ground and solar energy, wind energy have good repeatability on geographical location.
Therefore, for the thermal stability maintenance needs for covering frozen soil foundation under the subgrade engineering of Permafrost Area, it is based on solar energy
Photovoltaic generation and the steam compression type refrigeration of wind-power electricity generation joint driving have good application conditions and development potentiality.
Utility model content
The purpose of this utility model is to provide one kind can auto-control frozen soils temperature, ensure ever-frozen ground stable structure
Property for preventing the compression-type refrigerating system of permafrost degradation, to solve to utilize environment temperature regulation subgrade in above-mentioned background technology
Frozen soils temperature, but it is unable to active control cold, subgrade stability regulation and control are affected by environment larger, are unable to ensure roadbed frozen earth stable
The technical issues of property.
To achieve the goals above, the utility model takes following technical solution：
A kind of compression-type refrigerating system for preventing Permafrost Degeneration, including refrigeration unit, temperature signal collection list
Member, centralized control unit, power supply unit；
The input terminal of the refrigeration unit connects the output end of the centralized control unit, for the temperature to the frozen soil
Regulated and controled；The temperature signal collection unit connects an input terminal of the centralized control unit, for acquiring the frozen soil
Temperature signal, and the temperature signal of the frozen soil is sent to the centralized control unit；The centralized control unit is used for
Being turned on and off for the refrigeration unit is controlled according to the temperature signal of the frozen soil；The output end of the power supply unit connects institute
Another input terminal for stating centralized control unit, for providing power supply for the centralized control unit and the refrigeration unit.
Further, the refrigeration unit includes compressor, condenser, refrigerator pipes, device for drying and filtering, capillary, described
The outlet of compressor connects the entrance of the condenser, and the entrance of the entrance connection device for drying and filtering of the condenser is described dry
The outlet of dry filter connects the entrance of the refrigerator pipes by capillary, and the outlet of the refrigerator pipes connects the compressor
Entrance；
The temperature signal collection unit includes temperature sensor, and the temperature sensor is set in the frozen soil；It is described
Centralized control unit includes intelligent temperature controller, and the output end of the temperature sensor connects an input of the intelligent temperature controller
One output end at end, the intelligent temperature controller connects the compressor.
Further, the power supply unit includes a photovoltaic wind power generating set, the photovoltaic wind power generating set
Output end is connected with a Power Controller, and an output end of the Power Controller is connected with an inverter, the inverter
Output end is connected with kilowatt-hour meter, and the output end of the kilowatt-hour meter connects another input terminal of the intelligent temperature controller.
Further, another output end of the Power Controller is connected with accumulator, and the output end of the accumulator connects
Connect an input terminal of the Power Controller.
Further, another output end of the intelligent temperature controller is also associated with cooling blower.
Further, the compressor, the condenser, the device for drying and filtering, the cooling blower, the capillary
It manages, be mounted in a mounting bracket, the compressor is fixed on the lower part of the mounting bracket, the condenser, described dry
Dry filter is fixed on the top of the mounting bracket, and the device for drying and filtering and the capillary are respectively positioned on the condenser
Left side, the cooling blower are located at the rear side of the condenser.
Further, the outside of the mounting bracket is equipped with protective shell, corresponds to the cooling blower on the protective shell
Position be equipped with vent, the intelligent temperature controller and the kilowatt-hour meter are set on the protective shell.
Further, the mounting bracket is fixed on the ground of the frozen soil, is fixed with below the mounting bracket
Support tube, the support tube are set in the frozen soil, and the refrigerator pipes coiled coil is on the support tube.
Further, the refrigerator pipes are made of copper product, and the support tube is made of PVC material.
The utility model advantageous effect：Compact-sized, floor space is small, is driven using day sun energy, wind power generation, section
Can be environmentally friendly, it can realize and the reliable intelligent control of real-time stabilization is carried out to frozen soils temperature, avoid Permafrost Degeneration prevention
Seasonal limits, and reduces the influence of ambient temperature.The utility model advantageous effect specifically can also be by following
Several aspects illustrate：
1, the utility model uses the compression-type refrigeration method of electrical energy drive, and the year round cooling to ever-frozen ground may be implemented
Protection, especially in the serious warm season of Permafrost Degeneration, the heat transfer that can in real time absorb ever-frozen ground returns big compression ring
Border, compensates for the blank that existing Permafrost Area roadbed cooling provision can not effectively work in summer, and season matching is good.
2, the power supply of the utility model uses solar-wind energy complementary power generation system, using green energy resource, energy conservation and environmental protection,
Solar energy and wind energy have good complementarity on Annual distribution, on the one hand, daytime, sunlight intensity was big and wind is small, at night without day
According to, and wind energy is enhanced；On the other hand, warm season sunlight intensity is big and wind is small, and cold season sunlight intensity is small and wind is big.Cause
This, system power supply stability is good.
It 3, can be axial by adjusting the copper pipe of screw type copper coil pipe according to the depth distribution range of Permafrost Degeneration
Spacing changes sweat cooling section height, and the refrigeration depth bounds of device are flexibly controllable, the full model to ever-frozen ground may be implemented
It encloses and closely protects.
4, the utility model is compact-sized, small, and floor space is small, and integrated installing is convenient, does not interfere with road
Base normal operation, power consumption is small, can be driven by photovoltaic-wind generator system, not need mating supply line, can unmanned value
It keeps, can be used for covering the Permafrost Degeneration of ground under prevention Permafrost Area roadbed and heat melts disease.
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the compression-type refrigerating system principle frame for preventing Permafrost Degeneration described in the utility model embodiment
Figure.
Fig. 2 is the use of the compression-type refrigerating system for preventing Permafrost Degeneration described in the utility model embodiment
Status diagram.
Fig. 3 is the coiling of the compression-type refrigerating system for preventing Permafrost Degeneration described in the utility model embodiment
There is the support tube top cross-sectional view of refrigerator pipes.
Fig. 4 is the protection of the compression-type refrigerating system for preventing Permafrost Degeneration described in the utility model embodiment
Shell right view.
Wherein：100- refrigeration units；200- temperature signal collection units；300- centralized control units；400- power supply lists
Member；500- frozen soil；1- compressors；2- condensers；3- refrigerator pipes；4- devices for drying and filtering；5- capillaries；6- temperature sensors；7-
Intelligent temperature controller；8- photovoltaic wind power generating sets；9- Power Controllers；10- inverters；11- kilowatt-hour meters；12- accumulators；13-
Cooling blower；14- mounting brackets；15- protective shells；16- support tubes；17- vents；18- refrigerants.
Specific implementation mode
The embodiment of the utility model is described in detail below, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
The embodiment for crossing attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being used in the specification of the utility model
Wording " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or
Other one or more features of addition, integer, step, operation, element and/or their group.It should be understood that used herein
" connection " or " coupling " may include being wirelessly connected or coupling, and the wording "and/or" used includes one or more associated
List items any cell and all combine.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the meaning of idealization or too formal.
The utility model for ease of understanding is below in conjunction with the accompanying drawings further explained the utility model with specific embodiment
Illustrate, and specific embodiment does not constitute the restriction to the utility model embodiment.
Fig. 1 is the compression-type refrigerating system principle frame for preventing Permafrost Degeneration described in the utility model embodiment
Figure, Fig. 2 are the use state of the compression-type refrigerating system for preventing Permafrost Degeneration described in the utility model embodiment
Schematic diagram, Fig. 3 are the coiling of the compression-type refrigerating system for preventing Permafrost Degeneration described in the utility model embodiment
It is described in the utility model embodiment for preventing Permafrost Degeneration to have the support tube top cross-sectional view of refrigerator pipes, Fig. 4
The protective shell right view of compression-type refrigerating system.
It should be appreciated by those skilled in the art that attached drawing is the schematic diagram of embodiment, the component in attached drawing is not necessarily
Implement necessary to the utility model.
As shown in Figures 1 to 4, the utility model embodiment provides a kind of compression for preventing Permafrost Degeneration
Refrigeration system, including refrigeration unit 100, temperature signal collection unit 200, centralized control unit 300, power supply unit 400；
The input terminal of the refrigeration unit 100 connects the output end of the centralized control unit 300, for the frozen soil
500 temperature is regulated and controled；The temperature signal collection unit 200 connects an input terminal of the centralized control unit 300,
Temperature signal for acquiring the frozen soil 500, and the temperature signal of the frozen soil 500 is sent to the centralized control unit
300；The centralized control unit 300 is used to control opening for the refrigeration unit 100 according to the temperature signal of the frozen soil 500
It opens or closes；The output end of the power supply unit 400 connects another input terminal of the centralized control unit 300, is used for as institute
It states centralized control unit 300 and the refrigeration unit 100 provides power supply.
In a specific embodiment of the utility model, the refrigeration unit 100 includes compressor 1, condenser 2, system
Cold pipe 3, device for drying and filtering 4, capillary 5, the outlet of the compressor 1 connect the entrance of the condenser 2, the condenser 2
Entrance connection device for drying and filtering 4 entrance, the outlet of the device for drying and filtering 4 connects the refrigerator pipes 3 by capillary 5
Entrance, the outlet of the refrigerator pipes 3 connect the entrance of the compressor 1；
The temperature signal collection unit 200 includes temperature sensor 6, and the temperature sensor 6 is set to the frozen soil 500
It is interior；The centralized control unit 300 includes intelligent temperature controller 7, and the output end of the temperature sensor 6 connects the intelligent temperature control
One output end of one input terminal of device 7, the intelligent temperature controller 7 connects the compressor 1.
In a specific embodiment of the utility model, the power supply unit 400 includes a photovoltaic wind-driven generator
Group 8, the output end of the photovoltaic wind power generating set 8 is connected with a Power Controller 9, an output of the Power Controller 9
End is connected with an inverter 10, and the output end of the inverter 10 is connected with kilowatt-hour meter 11, and the output end of the kilowatt-hour meter 11 connects
Connect another input terminal of the intelligent temperature controller 7.
In a specific embodiment of the utility model, another output end of the Power Controller 9 is connected with electric power storage
The output end in pond 12, the accumulator 12 connects an input terminal of the Power Controller 9.
In a specific embodiment of the utility model, another output end of the intelligent temperature controller 7 is also associated with cold
But wind turbine 13.
In a specific embodiment of the utility model, the compressor 1, the condenser 2, the device for drying and filtering
4, the cooling blower 13, the capillary 5, be mounted in a mounting bracket 14, the compressor 1 is fixed on the installation
The lower part of holder 14, the condenser 2, the device for drying and filtering 4 are fixed on the top of the mounting bracket 14, described dried
Filter 4 and the capillary 5 are respectively positioned on the left side of the condenser 2, after the cooling blower 13 is located at the condenser 2
Side.
In a specific embodiment of the utility model, the outside of the mounting bracket is equipped with protective shell 15, the guarantor
On protective case 15 vent 17, the intelligent temperature controller 7 and the kilowatt-hour meter 11 are equipped with corresponding to the position of the cooling blower 13
It is set on the protective shell 15.
In a specific embodiment of the utility model, the mounting bracket 14 is fixed on the ground of the frozen soil 500
On, the lower section of the mounting bracket 14 is fixed with support tube 16, and the support tube 16 is set in the frozen soil 500, the refrigeration
For 3 coiled coil of pipe on the support tube 16, spiral spacing of the refrigerator pipes 3 on the support tube 16 can be according to practical feelings
Condition is rationally arranged.
In practical applications, the utility model embodiment does not limit to the setting on the support tube 16 of above-mentioned refrigerator pipes 3
Mode is set, the refrigerator pipes 3 also can be side by side vertically arranged by a manifold on the support tube 16, then total by one
Pipe connects the entrance of the compressor 1, and the spread length between the refrigerator pipes 3 can be arranged according to actual conditions, above-mentioned system
Any rational set-up mode of the cold pipe 3 on the support tube 16 is all in the protection domain of the utility model embodiment.
In a specific embodiment of the utility model, the refrigerator pipes 3 are made of copper product, the support tube 16 by
PVC material is made.
In practical applications, the utility model embodiment does not limit to the making material of the refrigerator pipes 3, the refrigerator pipes
3 can also be made of the metal material of other other than copper removal, or are made of the preferable other materials of other heat transfer efficiencys；The branch
The making material of stay tube 16 is not limited to PVC material, other cold-resistant hard materials can also be used for making the support tube 16, on
All rational making materials of support tube 16 and refrigerator pipes 3 are stated in the protection domain of the utility model embodiment.
When specifically used, the compression-type refrigerating system for preventing Permafrost Degeneration includes the utility model
Steam compression type refrigeration cycle subsystem and solar-wind energy complemental power-generation subsystem.Steam compression type refrigeration cycle
System includes refrigeration unit 100, and the refrigeration unit 100 includes the sweat cooling section being embedded in permanent frozen soil foundation, and
It is positioned over compressor 1, condenser 2, device for drying and filtering 4, capillary 5 and the cooling blower 13 of earth's surface or more, the evaporation system
Cold section for by 3 coiled coil of refrigerator pipes in the spiral-shaped structure of the vertical type columnar formed on support tube 16, specifically by a fixed length
The copper pipe of degree is process along the winding of PVC base tubes.The entrance of the refrigerator pipes 3 is connected with the outlet of capillary 5, passes through capillary
The liquid refrigerant 18 that pipe 5 is fed is evaporated to gaseous state, to absorb the heat of object to be cooled, generates refrigeration effect.The compression
Machine 1 is the core component of vapor-compression refrigerant cycle subsystem, and 1 entrance of compressor is connected with the outlet of refrigerator pipes 3, effect be by
Gaseous refrigerant sucking from refrigerator pipes 3, and gaseous refrigerant boil down to high pressure gaseous is freezed by mechanical work
Agent, and reach condensing pressure.The condenser 2 is a heat exchanger, and the entrance of condenser 2 is connected with the outlet of compressor 1,
Effect is will to be cooled down from the high temperature and high pressure gaseous refrigerant of compressor 1, and be condensed into liquid.Pacify at the back side of the condenser 2
A cooling wind 13 is filled, effect is to force air flow through the appearance of condenser 2, reinforces high-temperature high-pressure refrigerant gas in condenser 2
The radiating efficiency of body heat content.The entrance of the device for drying and filtering 4 is connected with the outlet of condenser 2, for excluding in refrigeration cycle
Moisture and dirt, such as greasy dirt, iron filings etc., prevent it and invade compressor 1 or be condensed into ice and passage.The capillary
Pipe 5 is used as throttle mechanism, the entrance of capillary 5 to be connected with the outlet of device for drying and filtering 4, and effect is by the pressure of liquid refrigerant
Evaporating pressure is reduced to by condensing pressure, a part of liquid refrigerant is converted into steam.
The centralized control unit 300 includes an intelligent temperature controller 7, and the intelligent temperature controller 7 is between solar energy-wind energy
Between complementary power generation system and the refrigeration unit 100, effect is adjusted by the control temperature and return difference temperature of default refrigeration
Save supply of electric power, the i.e. startup and shutdown of compressor 1 and cooling blower 13.
The temperature collecting cell 200 include a temperature sensor 6, when temperature sensing 6 monitor a certain position for many years
The temperature value of frozen soil 500 reach control temperature when, intelligent temperature controller 7 can cut off the power supply allow compressor 1 shut down, wait for temperature increase
When adding to return difference temperature, intelligent temperature controller 7, which can restore power supply supply, to be allowed compressor 1 to be again started up to freeze, will for many years freeze
The temperature regulation and control of soil 500 are in the reasonable scope.
The solar-wind energy complementary power generation system is a set of independent off-network electricity generation system, as power supply unit 400,
Including photovoltaic wind power generating set 8, accumulator 12, inverter 10, Power Controller 9.The photovoltaic wind power generating set 8 is distinguished
Convert solar radiation and wind energy to electric power energy.The accumulator 12 is by the electric power from photovoltaic wind power generating set 8
Energy storage gets up, and adjusts and balances the load for electric energy.The Power Controller 9 is according to generated energy and load situation of change pair
The working condition of accumulator 12 is switched over and is adjusted, and is protected accumulator 12 not overcharged and crossed and is put.The inverter 10 will store
The DC conversion that battery 12 exports is alternating current, and power supply is provided for refrigeration unit 100 and centralized control unit 300.It is described inverse
Kilowatt-hour meter 11 can be connected with by becoming between device 10 and the intelligent temperature controller 7, for real-time statistics vapour compression refrigeration system
Power consumption.The accumulator 12, inverter 10, Power Controller 9, intelligent temperature controller 7 and kilowatt-hour meter 11 can integrated installation in
In one power supply box, the power supply box is set between protective shell 15 and the mounting bracket 14.
The refrigeration cycle mechanism of the utility model is：(a) compression process, electricity of the compressor 1 in photovoltaic wind power generating set 8
Under power supply, the gaseous refrigerant 18 generated in sucking refrigerator pipes 3 carries out adiabatic compression, by gaseous state system to gaseous refrigerant 18
Cryogen 18 becomes the superheated vapor of high temperature and pressure；(b) condensation process, superheated vapor enter condenser 2, in the gas of cooling blower 13
Heat is distributed to atmospheric environment under stream effect, and is condensed into liquid refrigerant；(c) throttling process, saturated liquid refrigerant is through hair
5 adiabatic throttling of tubule, the saturation damp steam state for the gas-liquid two-phase mixing that cools down, is depressurized to；(d) evaporation process is saturated damp steam
It finally enters back into the refrigerator pipes 3 in ever-frozen ground 500, by evaporation endothermic process, realizes to 3 surrounding frozen soil of refrigerator pipes
500 refrigeration, and it is evaporated to steam, it returns to compressor 1 and completes refrigeration cycle.Pass through steam compression type refrigeration cycle subsystem
Circularly cooling is realized and is protected to the real-time refrigeration of ever-frozen ground 500.
The making step of steam compression type refrigeration subsystem described in the utility model includes：
(a) processing of sweat cooling section.The copper pipe of certain length and diameter is coiled along PVC base tubes with a determining deviation,
Form the screw type coil pipe of vertical type columnar；Wherein, copper pipe is as refrigerator pipes 3, and PVC base tubes are as support tube 16；
(b) double-deck steel mounting bracket 14 is built, condenser 2,2 side of condenser peace are installed in the upper layer of mounting bracket 14
Cooling blower 13 is filled, compressor 1 is installed by the lower layer of mounting bracket 14, and condenser 2 and compressor 1 are all made of bolt and are fixed on peace
It fills on holder 14, support tube 16 is bolted on the bottom end of mounting bracket 14；
(c) refrigerator pipes 3 are connected with the entrance of compressor 1, with one section between the outlet and the entrance of condenser 2 of compressor 1
Copper pipe is connected, and is connected with one section of copper pipe between the outlet and the entrance of device for drying and filtering 4 of condenser 2, the outlet of device for drying and filtering 4
It is connected with the entrance of capillary 5, the outlet of capillary 5 is connected with the inlet of refrigerator pipes 3 with copper pipe, and connected position is all made of weldering
Connect sealing；
(d) closed system processed in step (c) is vacuumized, refrigerant is perfused to compressor 1 using system vacuum
18；
(e) protective shell 15 is installed in the outside of mounting bracket 14, ventilation hole is drilled on a side of protection shell 15
17, and intelligent temperature controller 7 and kilowatt-hour meter 11 are installed；
(f) one section of power lead parallel connection, the power lead and intelligent temperature control are passed through by compressor 1 and cooling blower 13
The power output end of device 7 is connected by one section of power lead, the output end of the power input and kilowatt-hour meter 11 of intelligent temperature controller 7
It is connected by one section of power lead, the input terminal of kilowatt-hour meter 11 is connect with the output end of inverter 10 by one section of power lead.
The installation method of the solar-wind energy complemental power-generation subsystem is：By solar energy photovoltaic panel and wind-driven generator
Group is connected in parallel composition photovoltaic generation unit 8 by one section of power lead, and photovoltaic wind power generating set 8 is led by one section of power supply
Line is connect with the input terminal of Power Controller 9, and a side ports and the accumulator 12 of Power Controller 9 are connected by one section of power lead
It connects, the other side output end of Power Controller 9 is connect with the input terminal of inverter 10 by one section of power lead, inverter 10
Output end is connect with the input terminal of kilowatt-hour meter 11 by one section of power lead.
When the refrigerator pipes 3 are laid in the Permafrost Area subgrade engineering in the presence of heat evil, applying step includes：
(a) the heat evil range that permafrost is covered under roadbed is determined
In warm season the liter of ever-frozen ground 500 is determined in conjunction with geology radar survey by laying the measurement method of thermometer hole
Warm layer depth and the seasonal active layer upper limit；
(b) thermal physical property parameter and refrigeration duty on 500 stratum of ever-frozen ground are measured
It is tested by geo-thermal response test, determines that the thermal physical property parameters such as thermal capacity and the thermal coefficient on stratum, setting freeze for many years
The modification scope of soil temperature degree calculates the summer refrigeration duty of subgrade in permafrost soil zone；
(c) design parameters such as the depth of burying, diameter and the laying spacing of refrigerator pipes are determined
According to the heat evil depth bounds and refrigeration duty of subgrade in permafrost soil zone, determine compression-type refrigeration pipe 3 installation position and
Refrigeration range, the diameter and height of determining sweat cooling section 3, and lay spacing；
(d) drilling construction installs refrigerator pipes 3
It is drilled with hole by no-dig technique mechanical hole building mode, the evaporation system that coiling is made of the support tube 16 of refrigerator pipes 3
Cold section and temperature sensor 6 are embedded in pore-forming, and the backfill of hole gap is closely knit after the completion of laying, while by photovoltaic wind power generating set
8 are fixed on the void spaces for being nearby convenient for daylighting；
(e) device debugging is run with startup
The whole debugging of carry out system, setting control temperature and return difference temperature, then start fortune on intelligent temperature controller 7
Row.
In conclusion the operational effect of the utility model is, photovoltaic wind power generating set 8 is produced under sunshine and wind-force effect
Raw direct current energy, by the adjusting of Power Controller 9, a part of electric energy is converted into alternating current by inverter 10, passes through power supply
Conducting wire provides supply of electric power, dump energy storage for compressor 1 and cooling blower 13 operation of steam compression type refrigeration subsystem
In accumulator 12.When the generated energy of photovoltaic wind power generating set 8 is unsatisfactory for the power consumption requirements of vapour compression refrigeration system,
Power Controller 9 gives the electrical energy transportation of 12 inner storage of accumulator to steam compression type refrigeration subsystem.Steam compression type refrigeration
System persistently carries out vapor-compression refrigerant cycle process, including refrigerant 18 is in compressor 1 under the driving of compressor 1
Adiabatic compression, the exothermic condensation in condenser 2, the adiabatic throttling in capillary 5, the heat absorption evaporation in refrigerator pipes 3, i.e.,
Gas-liquid two-phase cyclic process.In refrigerative circle system, after refrigerant 18 liquefies in condenser 2, pass through dry filter first
After the purification of device 4, capillary 5 is entered back into.Condenser 2 passes through the condensation heat release of refrigerant 18 under the effect of cooling blower 13
The ventilation hole 17 of protective shell 15 is transferred to atmospheric environment.Refrigerator pipes 3 constantly absorb surrounding by the evaporation of refrigerant 18 and freeze for many years
The heat of soil layer, and it is transferred to atmospheric environment, thus generate the refrigeration effect to ever-frozen ground.Meanwhile the temperature in frozen soil stratum
Sensor 6 is spent by temperature sensor lead in real time by the temperature feedback of frozen soil 500 to intelligent temperature controller 7, intelligent temperature controller 7
Cryogenic temperature is set in a fixed range by the startup and shutdown for adjusting compressor 1 in real time according to temperature signal with this.
One of ordinary skill in the art will appreciate that：The component in device in the utility model embodiment can be according to reality
The description for applying example is distributed in the device of embodiment, can also carry out respective change positioned at one or more different from the present embodiment
In a device.The component of above-described embodiment can be merged into a component, can also be further split into multiple subassemblies.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (9)
1. a kind of compression-type refrigerating system for preventing Permafrost Degeneration, it is characterised in that：Including refrigeration unit (100),
Temperature signal collection unit (200), centralized control unit (300), power supply unit (400)；
The input terminal of the refrigeration unit (100) connects the output end of the centralized control unit (300), for the frozen soil
(500) temperature is regulated and controled；The one of temperature signal collection unit (200) connection centralized control unit (300) is defeated
Enter end, the temperature signal for acquiring the frozen soil (500), and by the temperature signal of the frozen soil (500) be sent to it is described in
Heart control unit (300)；The centralized control unit (300) is used for according to described in the control of the temperature signal of the frozen soil (500)
Refrigeration unit (100) are turned on and off；The output end of the power supply unit (400) connects the centralized control unit (300)
Another input terminal, for providing power supply for the centralized control unit (300) and the refrigeration unit (100).
2. the compression-type refrigerating system according to claim 1 for preventing Permafrost Degeneration, it is characterised in that：It is described
Refrigeration unit (100) includes compressor (1), condenser (2), refrigerator pipes (3), device for drying and filtering (4), capillary (5), the pressure
The outlet of contracting machine (1) connects the entrance of the condenser (2), and entrance connection device for drying and filtering (4) of the condenser (2) enters
Mouthful, the outlet of the device for drying and filtering (4) connects the entrance of the refrigerator pipes (3), the refrigerator pipes (3) by capillary (5)
Outlet connect the entrance of the compressor (1)；
The temperature signal collection unit (200) includes temperature sensor (6), and the temperature sensor (6) is set to the frozen soil
(500) in；The centralized control unit (300) includes intelligent temperature controller (7), the output end connection of the temperature sensor (6)
One output end of one input terminal of the intelligent temperature controller (7), the intelligent temperature controller (7) connects the compressor (1).
3. the compression-type refrigerating system according to claim 2 for preventing Permafrost Degeneration, it is characterised in that：It is described
Power supply unit (400) includes a photovoltaic wind power generating set (8), the output end connection of the photovoltaic wind power generating set (8)
There are a Power Controller (9), an output end of the Power Controller (9) to be connected with an inverter (10), the inverter
(10) output end is connected with kilowatt-hour meter (11), and the output end of the kilowatt-hour meter (11) connects the institute of the intelligent temperature controller (7)
State another input terminal.
4. the compression-type refrigerating system according to claim 3 for preventing Permafrost Degeneration, it is characterised in that：It is described
Another output end of Power Controller (9) is connected with accumulator (12), and the output end of the accumulator (12) connects the electric energy
One input terminal of controller (9).
5. the compression-type refrigerating system according to claim 4 for preventing Permafrost Degeneration, it is characterised in that：It is described
Another output end of intelligent temperature controller (7) is also associated with cooling blower (13).
6. the compression-type refrigerating system according to claim 5 for preventing Permafrost Degeneration, it is characterised in that：It is described
Compressor (1), the device for drying and filtering (4), the cooling blower (13), the capillary (5), is pacified at the condenser (2)
Loaded in a mounting bracket (14), the compressor (1) is fixed on the lower part of the mounting bracket (14), the condenser (2),
The device for drying and filtering (4) is fixed on the top of the mounting bracket (14), the device for drying and filtering (4) and the capillary
(5) it is respectively positioned on the left side of the condenser (2), the cooling blower (13) is located at the rear side of the condenser (2).
7. the compression-type refrigerating system according to claim 6 for preventing Permafrost Degeneration, it is characterised in that：It is described
The outside of mounting bracket is equipped with protective shell (15), and the position that the cooling blower (13) is corresponded on the protective shell (15) is equipped with
Vent (17), the intelligent temperature controller (7) and the kilowatt-hour meter (11) are set on the protective shell (15).
8. the compression-type refrigerating system according to claim 7 for preventing Permafrost Degeneration, it is characterised in that：It is described
Mounting bracket (14) is fixed on the ground of the frozen soil (500), and support tube is fixed with below the mounting bracket (14)
(16), the support tube (16) is set in the frozen soil (500), and refrigerator pipes (3) coiled coil is in the support tube (16)
On.
9. the compression-type refrigerating system according to claim 8 for preventing Permafrost Degeneration, it is characterised in that：It is described
Refrigerator pipes (3) are made of copper product, and the support tube (16) is made of PVC material.
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| CN201721590728.XU CN207685815U (en) | 2017-11-24 | 2017-11-24 | Compression-type refrigerating system for preventing Permafrost Degeneration |
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| CN201721590728.XU CN207685815U (en) | 2017-11-24 | 2017-11-24 | Compression-type refrigerating system for preventing Permafrost Degeneration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724377A (en) * | 2017-11-24 | 2018-02-23 | 北京交通大学 | For preventing and treating the compression-type refrigerating system of Permafrost Degeneration |
| RU2748086C1 (en) * | 2020-10-07 | 2021-05-19 | Елизавета Сергеевна Шараборова | Method of thermal stabilization of permafrost soils |
| CN114561932A (en) * | 2022-03-23 | 2022-05-31 | 西安建筑科技大学 | Temperature control equipment for frozen soil foundation |
| RU2779706C1 (en) * | 2022-03-14 | 2022-09-12 | Общество С Ограниченной Ответственностью "Пермафрост" | Soil thermal stabilization method due to year-round regulation of heat transfer |
-
2017
- 2017-11-24 CN CN201721590728.XU patent/CN207685815U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724377A (en) * | 2017-11-24 | 2018-02-23 | 北京交通大学 | For preventing and treating the compression-type refrigerating system of Permafrost Degeneration |
| RU2748086C1 (en) * | 2020-10-07 | 2021-05-19 | Елизавета Сергеевна Шараборова | Method of thermal stabilization of permafrost soils |
| WO2022075889A1 (en) * | 2020-10-07 | 2022-04-14 | Общество С Ограниченной Ответственностью "Пермафрост" | Method for thermally stabilizing permafrost soils |
| RU2795010C2 (en) * | 2021-05-17 | 2023-04-27 | Федеральное государственное автономное образовательное учреждение высшего образования "Севастопольский государственный университет" | Soil freezing method and device for its implementation |
| RU2779706C1 (en) * | 2022-03-14 | 2022-09-12 | Общество С Ограниченной Ответственностью "Пермафрост" | Soil thermal stabilization method due to year-round regulation of heat transfer |
| CN114561932A (en) * | 2022-03-23 | 2022-05-31 | 西安建筑科技大学 | Temperature control equipment for frozen soil foundation |
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