CN109520148A - A kind of solar refrigerating device for manual pipe jacking rich water broken ground - Google Patents
A kind of solar refrigerating device for manual pipe jacking rich water broken ground Download PDFInfo
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- CN109520148A CN109520148A CN201811541624.9A CN201811541624A CN109520148A CN 109520148 A CN109520148 A CN 109520148A CN 201811541624 A CN201811541624 A CN 201811541624A CN 109520148 A CN109520148 A CN 109520148A
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- pipe
- generator
- condenser
- rich water
- evaporator
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Classifications
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- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to a kind of solar refrigerating devices for manual pipe jacking rich water soft foundation, including collecting system and steam jet refrigeration system.Collecting system includes all-glass vacuum thermal-collecting tube and generator, and it is between the two closed thermal medium that tubular thermal-collecting tube, which embeds column generator,；Steam jet refrigeration system uses circulation system, including the components such as the evaporator being embedded in rich water broken ground and the condenser, throttle valve, vapor steam blaster, the check valve that are placed in earth's surface.The device is vertical refrigerating all-in-one machine, solar thermal energy and gravitional force joint driving refrigerant circulation, and movement-less part, reliable for operation without the consumption of electric energy and mechanical energy, the service life is long.The present invention can be used for reinforcing the weak cementing, macrovoid encountered in the engineerings such as excavating, passing through, fill, rich in the caving ground of water, and the heat for being particularly suitable for rich ice ground in the linear engineering such as prevention and treatment Permafrost Area long range railway, highway and transmission line of electricity melts disease.
Description
Technical field
The present invention is related to manual pipe jacking and applies technical field more particularly to Permafrost Area engineering heat linear over long distances melting ground
The thermal stability protection technology field of base, especially a kind of solar refrigerating device for manual pipe jacking rich water soft foundation.
Background technique
It is weak it is cementing, macroporous rock-soil material General Mechanics intensity is low, good water permeability, poor from steady and bearing capacity.At this
When the engineering constructions such as being passed through, excavated, being filled in the stratum of class material, under external loads or groundwater effect, Rock And Soil
Mechanical property is easy further reduction, and the deflection for the structures for leading to Rock And Soil and contacting is larger.Therefore, soft granular
The waterproof and Deformation control on stratum are a kind of important technical problems of current engineering field.
When Rock And Soil is in rich water state, liquid pore water can gradually congeal into ice under the conditions of subzero temperature, volume expansion,
Reduce the hole of material；With certain intensity (uniaxial compressive strength is 3.92~8.04MPa) after water congeals into ice, improve
The integral strength of Rock And Soil；The contraction distortion at low temperature of ground particle, soil skeleton expand to be formed additional in freezing soil and answer
It is further shunk under the action of power, density increases.Therefore, the universal plasticity of rock-soil material after freezing weakens, and mechanical strength increases,
Enhanced from steady and bearing capacity.Simultaneously as Rock And Soil pore water, crevice water congeal into ice, stratum water passage quilt
Obstruction, may also function as waterproof action.Improve the principle of Rock And Soil engineering properties based on water in Frozen Soil, geotechnical engineering circle proposes
Manual pipe jacking construction method, and apply in the engineering construction of the multiple fields such as mine, subterranean tunnel and subway.
Currently, the long-distance lines shape engineering such as railway, highway, power grid, oil-gas pipeline is largely built in Permafrost Area.On
Engineering is stated while changing ground heat dissipation characteristics and seasonal melt layer hydro-thermal transports feature, also changes original earth's surface
Thermal and hydric environment feature.When solid ice liquefies in ever-frozen ground, it will lead to the softening of frozen soil argillization and rheology, weaken ground
Bearing capacity and stability.Due to the influence of the factors such as climate warming, artificial disturbance, traffic load, in ever-frozen ground stratum
Roadbed, power tower, pipeline ground are faced with Permafrost Thermal extensively and melt the diseases such as the depression of induction, slump, therefore using actively cold
But measure keeps and restores the frozen state of ever-frozen ground along route extremely necessary.But due to line project distance, along the line
Infrastructure falls behind relatively, and especially power supply is difficult, and the engineerings such as no image of Buddha mine, tunnel and subway are in the field of limited areal
Using concentration compression-type refrigeration, the defeated cold manual pipe jacking construction method of salting liquid divergent cyclical in ground.
Summary of the invention
0 DEG C or less cooling capacity can continuously be prepared the technical problem to be solved in the present invention is to provide one kind and do not need power consumption,
The solar refrigerating device for manual pipe jacking rich water soft foundation of movement-less part.
To achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of solar refrigerating device of manual pipe jacking rich water soft foundation, including collecting system and steam jet refrigeration system
System, wherein collecting system includes all-glass vacuum thermal-collecting tube and generator, and the generator is that diameter is true less than the full glass
Empty set heat pipe and the column being built in the all-glass vacuum thermal-collecting tube, the generator and all glass vacuum heat collecting
Thermal medium is closed and is full of in gap between pipe, is marked with refrigeration working medium in the generator；
Wherein steam jet refrigeration system include evaporator, gas-liquid separator, throttle valve, check valve, vapor steam blaster and
Condenser, the vapor steam blaster are made of suction chamber, mixing chamber and diffusion room；
The evaporator is cylindrical and is embedded in rich water broken ground, and thermal-arrest is successively vertically arranged with more than earth's surface
The outlet of system, vapor steam blaster, gas-liquid separator and condenser, the evaporator passes through low-pressure steam pipe and the suction chamber
Connection；
The outlet of the generator is connected to by high pressure steam pipe with the gas-liquid separator, and the gas-liquid separator passes through
High pressure steam pipe is connected to the suction chamber, and the tube body top that the high pressure steam pipe gos deep into suction chamber is equipped with nozzle；
The entrance of the condenser is connected to by mixed vapour pipe with the diffusion room, and the mixed vapour pipe stretches to cold
At the top of condenser；
The outlet of the condenser is connected with liquid refrigerant pipe, and the liquid refrigerant pipe is divided into two branch pipes, a branch pipe
The base of evaporator is protruded into through throttle valve, another branch pipe protrudes into the generator through check valve；
The gas-liquid separator bottom is equipped with the communicating pipe connecting with through throttle valve branch pipe；
From the relative altitude between the condenser bottom according to different refrigeration duty values at the top of the generator.
Positioning card is equipped between the generator and the all-glass vacuum thermal-collecting tube.
Regenerator is equipped between the vapor steam blaster and the condenser.
Forecooler is equipped between the evaporator and the collecting system.
The refrigeration working medium uses alcohols or alkanes refrigeration working medium.
The present invention is due to using above-mentioned structure, and compared with prior art, acquired technological progress is:
1, the present invention drives refrigerant circulation using low-grade solar thermal energy, economic and environment-friendly.Using all-glass vacuum collection
Heat pipe absorbs the radiations heat energy of sunlight, and collecting efficiency is high.All-glass vacuum thermal-collecting tube is inside and outside nested with generator, contact area
Greatly, heat exchange efficiency is high, and refrigeration cycle starting is rapid.
2, present invention layout is novel, and there are the liquid refrigerations that relative relief, condenser come out between condenser and generator
Agent returns in generator by resulting gravity, and not needing setting circulating pump can be completed refrigerant circulation, device
Entirety does not need external power supply.
3, the present invention uses alcohols and alkanes refrigerant, as methanol, hexane can be run at 0 DEG C or less.Utilize refrigerant
The physical property that variation is generated with pressure, temperature variation is freezed by the evaporation of refrigerant, is freezed around evaporator 7
Aqueous water in a certain range in rich water broken ground.For ever-frozen ground stratum, melts depression in prevention and treatment ever-frozen ground, increase
Add stratum dynamics intensity；Freeze to effectively reduce the driving force that moisture is migrated to freezing zone by continuous temperature control, to inhibit
The fractional condensation frost heave of frozen soil.
4, regenerator is equipped in the present invention, the mixed vapour for the high temperature for allowing vapor steam blaster to flow out flows out low with condenser
The liquid refrigerant of temperature carries out heat exchange, reduces the temperature that mixed vapour enters generator；Equipped with forecooler, evaporator is allowed to come out
Cryogenic refrigeration steam and condenser liquid refrigerant exchange heat, and improve the temperature that refrigerant vapor enters injector.Two components can be reduced
Sensible heat loss improves the performance of device.
5, the present invention does not have mechanical moving element, because of the consumption without electric energy and mechanical energy, so that operation is more stable
Reliably.Apparatus structure is compact, small in size, and occupied area is small, and integrated installing is convenient, does not need mating power supply line, can
It is unattended, it can be used for manual pipe jacking rich water soft foundation, be particularly suitable for prevention and treatment Permafrost Area long distance line engineering and freeze
The heat of soil base melts disease.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is all-glass vacuum thermal-collecting tube structure principle chart in device.
Fig. 3 is vapor steam blaster structure principle chart in device.
In figure: 1- condenser, 2- regenerator, 3- liquid refrigerant pipe, 4- throttle valve, 5- check valve, 6- communicating pipe, 7- steam
Send out device, 8- forecooler, 9- collecting system, 91- generator, 92- all-glass vacuum thermal-collecting tube, 93- positioning card, 10- low-pressure steam
Pipe, 11- gas-liquid separator, 12- high pressure steam pipe, 13- vapor steam blaster, 131- suction chamber, 132- mixing chamber, 133- diffusion
Room, 134- nozzle, 14- mixed vapour pipe.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.It should be appreciated that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Referring to Fig.1-3, a kind of solar refrigerating device of manual pipe jacking rich water soft foundation, including collecting system 9 and steaming
Gas jet refrigeration system, wherein collecting system includes all-glass vacuum thermal-collecting tube 92 and generator 91, and the generator 91 is straight
The column that diameter is less than the all-glass vacuum thermal-collecting tube 92 and is built in the all-glass vacuum thermal-collecting tube 92, the generation
Thermal medium is closed and is full of in gap between device 91 and the all-glass vacuum thermal-collecting tube 92, is marked with system in the generator 91
Cold working medium；
Wherein steam jet refrigeration system includes evaporator 7, gas-liquid separator 11, throttle valve 4, check valve 5, vapour injection
Device 13 and condenser 1, the vapor steam blaster 13 are made of suction chamber 131, mixing chamber 132 and diffusion room 133；
The evaporator 7 is cylindrical and is embedded in rich water broken ground, and collection is successively vertically arranged with more than earth's surface
The outlet of hot systems 9, vapor steam blaster 13, gas-liquid separator 11 and condenser 1, the evaporator 7 passes through low-pressure steam pipe 10
It is connected to the suction chamber 131；
The outlet of the generator 91 is connected to by high pressure steam pipe 12 with the gas-liquid separator 11, the gas-liquid separation
Device 11 is connected to by high pressure steam pipe 12 with the suction chamber 131, and the high pressure steam pipe 12 gos deep into the tube body top of suction chamber 131
End is equipped with nozzle 134；
The entrance of the condenser 1 is connected to by mixed vapour pipe 14 with the diffusion room 133, the mixed vapour pipe 14
Stretch to 1 top of condenser；
The outlet of the condenser 1 is connected with liquid refrigerant pipe 3, and the liquid refrigerant pipe 3 is divided to for two branch pipes, a branch
Pipe protrudes into 7 bottom of evaporator through throttle valve 4, and another branch pipe protrudes into the generator 91 through check valve 5；
11 bottom of gas-liquid separator is equipped with the communicating pipe 6 connecting with through 4 branch pipe of throttle valve；
91 top of generator is from the relative altitude between 1 bottom of condenser according to different refrigeration duty values.
Positioning card 93 is equipped between the generator 91 and the all-glass vacuum thermal-collecting tube 92.
Regenerator 2 is equipped between the vapor steam blaster 13 and the condenser 1.
Forecooler 8 is equipped between the evaporator 7 and the collecting system 9.
The refrigeration working medium uses alcohols or alkanes refrigeration working medium.
The present invention is laid on rich water soft foundation in vertical assembled, and evaporator 7 is embedded in rich water soft foundation, is risen cold
But frozen ground acts on.Evaporator 7 is generally using cylinder, by installing after non-excavation type machinery drilling and forming hole.To prevent harnessing the river,
Corrosive elements in soil make evaporator 7 generate corrosion, need to do the anti-corrosion measures such as paint on its surface layer.
In the design freezing zone of rich water soft foundation, first according to engineering characteristics, soil body thermal conduction characteristic, moisture content and
Other correlated conditions, determination freeze pitch of holes, determine hole depth (7 length of column evaporator) according to caving ground influence depth,
Then the refrigeration working medium and the top of generator 91 and condenser 1 in aperture and selection are determined according to the refrigeration duty of single freezing plant
Relative altitude value between bottom.
In use, sun-drenched daytime at all seasons, all-glass vacuum thermal-collecting tube 92 absorbs solar thermal energy and generates
High temperature thermal medium, the refrigeration working medium in generator 91 are heated as high pressure steam, 91 outer wall both ends of generator by thermal medium
Four positioning cards are placed between 92 inner glass tube inner wall of all-glass vacuum thermal-collecting tube, so that in entire generator 91 and vacuum tube
Wall keeps certain uniform spacing, and the buoyancy lift for overcoming generator 91 suffered in thermal medium, maintains refrigerant and hair
Good heat convection between raw 91 surrounding thermal medium of device.High pressure steam is introduced into gas-liquid separator through high pressure steam pipe 12
11, the refrigeration working medium of liquid is back to generator 91 by the liquid refrigerant pipe 3 connected communicating pipe 6 in gas-liquid separator 11
Interior, high pressure steam enters the suction chamber 131 of vapor steam blaster 13 through high pressure steam pipe 12, and high pressure steam carries out absolutely through nozzle 134
Thermal expansion becomes high velocity, low pressure steam, and the liquid refrigerant low-pressure steam that absorption refrigeration generates under low pressure is through low in evaporator 7
Pressure steam pipe 10 is inhaled into the suction chamber 131 of injector, mixing chamber 132 and nozzle of the low voltage refrigeration steam in vapor steam blaster 13
The 134 high velocity, low pressure steam mixing generated, mixed vapour is by the kinetic energy of high velocity, low pressure steam through the diffusion of vapor steam blaster 13
Then boost in pressure to condensing pressure is entered condenser 1 through mixed vapour pipe 14 by room 133, mixed vapour is released in condenser 1
It is condensed into refrigeration working medium after a large amount of sensible heats and the latent heat of vaporization, a part of refrigeration working medium is through liquid refrigerant pipe 3 and throttle valve 4
Enter evaporator 7 after being depressurized to evaporating pressure, another part refrigeration working medium is under the gravity that relative elevation generates through liquid
Working medium tube 3 and check valve 5 enter generator 91, complete the circulation of entire cooling flow.So circulation is freezed in cycles,
Play the role of lasting cooling stratum, frozen water content.
Another implementation is equipped with forecooler 8, the pre-cooled device 8 of refrigeration working medium between evaporator 7 and collecting system 9
Processing, the cryogenic refrigeration steam and 1 liquid refrigerant of condenser for allowing evaporator 7 to come out exchange heat, and improve refrigerant vapor and enter steam spray
The temperature of emitter 13；Regenerator 2 is equipped between vapor steam blaster 13 and condenser 1, the high temperature for allowing vapor steam blaster 13 to flow out
The liquid refrigerant for the low temperature that mixed vapour and condenser 1 flow out carries out heat exchange, reduces the temperature that mixed vapour enters generator 91
Degree.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in power of the present invention
Within the scope of benefit is claimed.
Claims (5)
1. a kind of solar refrigerating device of manual pipe jacking rich water soft foundation, it is characterised in that: including collecting system and steam
Injection refrigerating system, wherein collecting system includes all-glass vacuum thermal-collecting tube and generator, and the generator is less than institute for diameter
The column stating all-glass vacuum thermal-collecting tube and being built in the all-glass vacuum thermal-collecting tube, the generator and the full glass
Thermal medium is closed and is full of in gap between glass evacuated collector tube, is marked with refrigeration working medium in the generator；
Wherein steam jet refrigeration system includes evaporator, gas-liquid separator, throttle valve, check valve, vapor steam blaster and condensation
Device, the vapor steam blaster are made of suction chamber, mixing chamber and diffusion room；
The evaporator is cylindrical and is embedded in rich water broken ground, and thermal-arrest system is successively vertically arranged with more than earth's surface
The outlet of system, vapor steam blaster, gas-liquid separator and condenser, the evaporator is connected by low-pressure steam pipe and the suction chamber
It is logical；
The outlet of the generator is connected to by high pressure steam pipe with the gas-liquid separator, and the gas-liquid separator passes through high pressure
Steam pipe is connected to the suction chamber, and the tube body top that the high pressure steam pipe gos deep into suction chamber is equipped with nozzle；
The entrance of the condenser is connected to by mixed vapour pipe with the diffusion room, and the mixed vapour pipe stretches to condenser
Top；
The outlet of the condenser is connected with liquid refrigerant pipe, and the liquid refrigerant pipe is divided into two branch pipes, a branch pipe warp knuckle
Stream valve protrudes into the base of evaporator, and another branch pipe protrudes into the generator through check valve；
The gas-liquid separator bottom is equipped with the communicating pipe connecting with through throttle valve branch pipe；
From the relative altitude between the condenser bottom according to different refrigeration duty values at the top of the generator.
2. the solar refrigerating device of manual pipe jacking rich water soft foundation according to claim 1, it is characterised in that: described
Positioning card is equipped between generator and the all-glass vacuum thermal-collecting tube.
3. the solar refrigerating device of manual pipe jacking rich water soft foundation according to claim 1, it is characterised in that: described
Regenerator is equipped between vapor steam blaster and the condenser.
4. the solar refrigerating device of manual pipe jacking rich water soft foundation according to claim 1,2 or 3, feature exist
In: forecooler is equipped between the evaporator and the collecting system.
5. the solar refrigerating device of manual pipe jacking rich water soft foundation according to claim 1, it is characterised in that: described
Refrigeration working medium uses alcohols or alkanes refrigeration working medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541624.9A CN109520148A (en) | 2018-12-17 | 2018-12-17 | A kind of solar refrigerating device for manual pipe jacking rich water broken ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541624.9A CN109520148A (en) | 2018-12-17 | 2018-12-17 | A kind of solar refrigerating device for manual pipe jacking rich water broken ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520148A true CN109520148A (en) | 2019-03-26 |
Family
ID=65795710
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811541624.9A Withdrawn CN109520148A (en) | 2018-12-17 | 2018-12-17 | A kind of solar refrigerating device for manual pipe jacking rich water broken ground |
Country Status (1)
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| CN (1) | CN109520148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305763A (en) * | 2022-08-26 | 2022-11-08 | 中国路桥工程有限责任公司 | High-altitude area road roadbed structure and construction method thereof |
-
2018
- 2018-12-17 CN CN201811541624.9A patent/CN109520148A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305763A (en) * | 2022-08-26 | 2022-11-08 | 中国路桥工程有限责任公司 | High-altitude area road roadbed structure and construction method thereof |
| CN115305763B (en) * | 2022-08-26 | 2023-05-02 | 中国路桥工程有限责任公司 | Road subgrade structure in high-altitude area and construction method thereof |
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