CN109944626A - Tunnel phase change cold-storage cooling system - Google Patents
Tunnel phase change cold-storage cooling system Download PDFInfo
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- CN109944626A CN109944626A CN201910275251.3A CN201910275251A CN109944626A CN 109944626 A CN109944626 A CN 109944626A CN 201910275251 A CN201910275251 A CN 201910275251A CN 109944626 A CN109944626 A CN 109944626A
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Abstract
The present invention provides a kind of tunnel phase change cold-storage cooling system, including cold-storage section and temperature descending section, cold-storage section be by tunnel ground temperature energy heat exchanger, water pump, distributive pipe, collector pipe and the indoor phase change cold-storage board group of cold-storage cave at closed cycle system；Phase change cold-storage plate first completes cold-storage in cold-storage chamber, the temperature descending section close to constructing tunnel face is transported along tunnel, temperature descending section includes cooling construction trolley, thermal insulation layer, removal shield door, outer circulation ventilation and interior circulating ventilation, and thermal insulation layer forms closing insulated space at tunnel excavation face rear with removal shield door；Temperature-reducing tablet and water pump, distributive pipe, collector pipe and phase change cold-storage plate in the construction trolley that cools down form closed circulation cooling system, combine cooling to closing insulated space with outer circulation ventilation and interior circulating ventilation.The present invention compares existing artificial ice making cooling method, has the significant progress such as construction is convenient, efficiency is high, renewable, operating cost is low.
Description
Technical field
The present invention relates to a kind of safe-guard systems of constructing tunnel, and in particular to a kind of cold for tunnel using phase-change material
But the system to cool down.
Background technique
By taking the tunnel railway Sang Zhuling of Sichuan-Tibet as an example, tunnel overall length 16449m, maximum buried depth about 1347m are current China
Railway tunnel build in the highest rock temperature tunnel that encounters, rock temperature reaches 81.9 DEG C in tunnel." railway tunnel construction specification "
Temperature is not greater than 28 DEG C in TB10120-2002 regulation Tunnel, and tunnel highland warm calamity causes construction personnel's labour capacity to drop
Low, mechanical equipment fault rate significantly increases, and seriously reduces construction efficiency；It is larger to construction personnel's health effect, altitude sickness morbidity
Rate increases, and jeopardizes construction personnel's life security.The cooling of High-geotemperature constructing tunnel is mainly using reinforcement ventilation, heat-insulated, cold water (ice
Block) cooling and mechanical refrigeration ventilation etc..+ spraying+reinforcement ventilated synthetic cooling skill that the tunnel Sang Zhuling is using cellular concrete+ice cube
Art has dropped 10-20 DEG C in Tunnel at a temperature of environment, environment temperature controls within 45 DEG C, but still not up to as defined in specification
Requirement within 28 DEG C.Analyze itself the reason is as follows that: (1) the blower cold consumption of Super Long Tunnel is big, and energy consumption is high, and operating cost
It is high；(2) cool down 3-5 DEG C within the scope of 3m around ice cube, cool down inefficient；(3) gunite concrete for adding air entraining agent will be in hole
Temperature reduces 2-3 DEG C, and heat insulation is limited.
Through retrieving, Chinese patent literature CN109209466A discloses a kind of shield tunnel construction cooling device and cooling side
Method arranges refrigeration system and air cooling system in tunnel, and shield circulation is arranged outside tunnel；By refrigeration system
It is connected with air cooling system, provides cold source for air cooling system；The natural wind that air cooling system and ground are sent into carries out
Cold and hot exchange, cools down natural wind；Shield circulation is connected with refrigeration system, for carrying out to refrigeration system
Radiating and cooling.
Tunnel is linear structure, passes through stratum and the geological structural belt of different buried depth, edpth of tunnel variation and geothermal anomaly
Geological structural belt, which will lead in tunnel, has significant " the temperature difference ", how to be used for the antifreeze heating of tunnel in cold area, uses simultaneously
Cooling down in High-geotemperature tunnel, raising efficiency+enhancing is heat-insulated+energy conservation and environmental protection, just become and solves the prominent of Super Long Tunnel highland warm calamity
Cut.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention will be low using tunnel ground temperature energy heat exchanger
The country rock ground temperature of ground temperature section can be stored in phase change plate, substitute traditional artificial ice making, for empty in the hole of High-geotemperature section
Gas cooling, reaches the purpose of cooling is high-efficient, environmentally protective and at low cost.
Technical solution: in order to solve the above technical problems, phase change cold-storage cooling system in tunnel provided by the invention, including cold-storage
System and cooling system.
Wherein, cold accumulation system is by tunnel ground temperature energy heat exchanger, water pump, distributive pipe, collector pipe and the indoor phase of cold-storage cave
Become the closed cycle system of hold-over plate composition；The phase change cold-storage plate first completes cold-storage in cold-storage chamber, transports along tunnel
Cooling system is simultaneously attached thereto.
Cooling system close to constructing tunnel face arrange, including cooling construction trolley, thermal insulation layer, removal shield door, follow outside
Ring ventilation, interior circulating ventilation and ambient intelligence monitoring system；Thermal insulation layer and removal shield door are at tunnel excavation face rear
Form closing insulated space；Temperature-reducing tablet and water pump, distributive pipe, collector pipe and phase change cold-storage plate in the construction trolley that cools down are formed and are sealed
Closed loop cooling system, using cooling construction trolley, outer circulation ventilation and interior circulating ventilation to closing insulated space joint cooling.
Specifically, the tunnel ground temperature energy heat exchanger includes several groups heat exchange pipe, and the heat exchange pipe is laid in
Just between lining and splash guard, in hollow bolt and above tunnel inverted arch.
Specifically, the cooling construction trolley includes construction trolley, bracket, temperature-reducing tablet, distributive pipe and collector pipe.
Specifically, the ambient intelligence monitoring system is adopted by temperature sensor, air velocity transducer, humidity sensor, data
Storage and analysis process system control the working condition of outer circulation ventilation and interior circulating ventilation according to construction environment monitoring data.
Present invention simultaneously provides the operational methods for using above system being the cooling of constructing tunnel face, comprising the following steps:
Step 1, before performing two linings, positions are laid with heat exchange in the tunnel surface Chu Chen, hollow bolt and above inverted arch etc.
Heat exchange pipe is pierced by two lining concrete sidewalls via longitudinal drainage pipe lower section when pouring two lining concrete by pipeline；
Step 2, connect respectively with the inlet and outlet of heat exchange pipe by distributive pipe, collector pipe, and be located at cold-storage
The water outlet of the indoor phase change cold-storage plate of cave, water inlet connection, are driven using water circulating pump, form closed circulation cold storage pipe
Road；
Step 3, the first lining hole wall surface at tunnel construction tunnel face rear performs thermal insulation layer, and movement is installed in tunnel cross section
Shield door constitutes closed construction space；
Step 4, phase change cold-storage plate is transported in closure construction space, by distributive pipe, collector pipe respectively and on cooling trolley
Temperature-reducing tablet connection, driven using water circulating pump, form closed circulation temperature lowering pipeline；
Step 5, in closed construction space, lay in circulating fan, outer circulation blower air supply duct, temperature sensor, wet
Spend sensor, air velocity transducer；
Step 6, the draft type and ventilation quantity of ambient intelligence monitoring system intelligent control blower are utilized.
In use, tunnel phase change cold-storage cooling system by tunnel ground temperature energy heat exchanger, phase change cold-storage plate, water pump, distributive pipe,
Collector pipe, cold-storage chamber, cooling construction trolley, thermal insulation layer, removal shield door, outer circulation ventilation, interior circulating ventilation and environment
Intelligent monitor system composition；Phase change cold-storage plate is formed by water pump, distributive pipe and collector pipe and tunnel ground temperature energy heat exchanger and is closed
Circulation cold storage system, phase change cold-storage plate are placed in cold-storage chamber, after the completion of phase change cold-storage plate cold-storage, are transported in hole and are used for
The cooling of area surface construction；Thermal insulation layer and removal shield door are formed at tunnel excavation face rear closes insulated space；Cooling
Construction trolley forms closed circulation cooling system by water pump, distributive pipe and collector pipe and phase change cold-storage plate, is constructed using cooling
Trolley, outer circulation ventilation and interior circulating ventilation are to closing insulated space joint cooling；
Inventive principle: between the first lining and splash guard of tunnel low land temperature section, the positions such as above in hollow bolt and tunnel inverted arch
The heat exchange pipe for locating arrangement, with the heat exchange pipe in phase change cold-storage plate, connection forms closed circulation line, utilizes circulation
Low temperature ground temperature in tunnel surrounding can be stored in phase change cold-storage plate by the heat transfer cycle medium in pipeline.Haulage vehicle is by phase transformation
Hold-over plate is transported to High-geotemperature section in hole, connect by water pump, distributive pipe and collector pipe with the temperature lowering board in cooling construction trolley,
Closed circulation line is formed, using the heat transfer cycle medium in circulation line to cooling Plate supplying cooling capacity, is realized to temperature lowering board
The air cooling-down of surrounding.
The utility model has the advantages that reproducible ground temperature energy resource of the present invention using the low land warm area section in tunnel, to High-geotemperature section
Hole in air cooling-down, replace traditional artificial ice making falling temperature technique, have the advantages that environmentally protective, operating cost is low etc., than pass
Artificial 80% or more the ice making falling temperature technique energy conservation of system.And in heat-insulated enclosure space, pass through inside and outside circulating fan and cooling
The temperature-reducing tablet of three-dimensional dispersed placement on trolley combines cooling, has many advantages, such as that good heat-insulation effect, cooling are high-efficient.Temperature-reducing tablet benefit
It is fixed in construction trolley with bracket, forms integrated cooling device with construction trolley, by dividing, catchment pipeline and phase change cold-storage
Plate connection has the advantages that easy to operate without loading, unloading temperature-reducing tablet repeatedly.
Except it is above-described present invention solves the technical problem that, constitute technical solution technical characteristic and by these technologies
Outside advantage brought by the technical characteristic of scheme.To keep the object of the invention, technical scheme and beneficial effects clearer, below will
In conjunction with the attached drawing in the embodiment of the present invention, to other for including in the other technologies problem of the invention that can solve, technical solution
The advantages of technical characteristic and these technical characteristics are brought does apparent, complete description, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Detailed description of the invention
Fig. 1 is tunnel phase change cold-storage cooling working principle diagram；
Fig. 2 is heat-exchange tube arrangement cross-sectional view；
Fig. 3 is cold-storage chamber plan view；
Fig. 4 is cooling pipeline arrangement cross-sectional view；
In figure: 1 is just lining；2 be heat-exchange tube；3 be inverted arch；4 be two linings；5 be cold-storage chamber；6 be phase change cold-storage plate；7 be point
Water pipe；8 be collector pipe；9 be thermal insulation layer；10 be removal shield door；11 be interior circulating fan；12 be outer circulation blower；13 are
Cool down construction trolley；14 be bracket；15 be temperature-reducing tablet；16 be water pump；17 be face；18 be country rock；19 be transport vehicle.
Specific embodiment
Embodiment:
The tunnel cold accumulation cooling-down system of the present embodiment is as shown in Figure 1, phase change cold-storage plate 6 passes through circulating pump, distributive pipe 7 and collector pipe
8 form closed circulation cold accumulation system with tunnel ground temperature energy heat exchanger (being mainly made of heat-exchange tube 2), and the cold accumulation system is by cooling capacity
It is transmitted to the phase change cold-storage plate 6 for being packed into closed cold-storage chamber 5, the phase change cold-storage plate 6 for completing cold-storage is transported to by transport vehicle 19
Cool down in hole for area surface construction；It is specifically rectangular after tunnel excavation face with thermal insulation layer 9 and removal shield door 10
At closing insulated space；Temperature-reducing tablet 15 is arranged in the construction trolley 13 that cools down, temperature-reducing tablet 15 is by water pump 16 and circulation line and phase
Become hold-over plate 6 and forms closed circulation cooling system, it is right using cooling construction trolley 13, outer circulation ventilation 12 and interior circulating ventilation 11
Close insulated space joint cooling.
As shown in Fig. 2, tunnel ground temperature energy heat exchanger includes multiple groups heat-exchange tube 2, heat-exchange tube can be laid in just lining and prevent
Between water plate, in hollow bolt and above tunnel inverted arch etc. at positions, each group heat-exchange tube 2 is connected through distributive pipe 7 and collector pipe 8
Into cold-storage chamber 5 as shown in Figure 3, cooling capacity is transmitted in phase change cold-storage plate 6 using circulation line.
As shown in figure 4, cooling pipe routing be mounted on cooling construction trolley 13 bracket 14 on temperature-reducing tablet 15, distributive pipe 7,
The circulation line that collector pipe 8, water pump 15 and the phase change cold-storage plate 6 shipped are connected to form utilizes the cooling capacity of exchange phase change cold-storage plate 6
For construction space cooling.
Ambient intelligence monitoring system is by temperature sensor, air velocity transducer, humidity sensor, data collector and analysis
Reason system composition controls the working condition of outer circulation ventilation and interior circulating ventilation according to construction environment monitoring data.
In use, implementation process is as follows:
(1) before performing two linings, positions are laid with heat-exchange tube in the tunnel surface Chu Chen, hollow bolt and above inverted arch etc.
Heat exchange pipe is pierced by two lining concrete sidewalls via longitudinal drainage pipe lower section when pouring two lining concrete by road；
(2) connect respectively with the inlet and outlet of heat exchange pipe by distributive pipe, collector pipe, and with positioned at cold-storage chamber
The water outlet of interior phase change cold-storage plate, water inlet connection, are driven using water circulating pump, form closed circulation cold storage pipeline；
(3) the first lining hole wall surface at tunnel construction tunnel face rear performs thermal insulation layer, and mobile screen is installed in tunnel cross section
Door is covered, closed construction space is constituted；
(4) phase change cold-storage plate is transported in closure construction space, by distributive pipe, collector pipe respectively with cooling trolley on drop
Warm piece connection, is driven using water circulating pump, forms closed circulation temperature lowering pipeline；
(5) in closed construction space, interior circulating fan, outer circulation blower air supply duct, temperature sensor, humidity is laid and is passed
Sensor, air velocity transducer；
(6) draft type and ventilation quantity of ambient intelligence monitoring system intelligent control blower are utilized.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
The present invention provides a kind of completely new thinking and method for constructing tunnel cooling, implements the side of the technical solution
There are many method and approach, and the above is only the preferred embodiments provided in an illustrative manner.Those skilled in the art can be not inclined
Many changes are expected in the case where from the present invention, are changed and are substituted.It should be appreciated that can be used during practicing the present invention
To the various alternative solutions of embodiments of the invention described herein.Appended claims are intended to limit the scope of the invention,
And therefore cover the method and structure in the range of these claims and its equivalent item.Each composition being not known in the present embodiment
The available prior art in part is realized.
Claims (5)
1. a kind of tunnel phase change cold-storage cooling system, including cold-storage section and temperature descending section, it is characterised in that:
The cold-storage section is by tunnel ground temperature energy heat exchanger, water pump, distributive pipe, collector pipe and the indoor phase change cold-storage plate of cold-storage cave
The closed cycle system of composition；The phase change cold-storage plate first completes cold-storage in cold-storage chamber, transports temperature descending section simultaneously along tunnel
It is attached thereto；
The temperature descending section is arranged close to constructing tunnel face, including cooling construction trolley, thermal insulation layer, removal shield door, outer circulation
Ventilation, interior circulating ventilation and ambient intelligence monitoring system；Thermal insulation layer is rectangular after tunnel excavation face with removal shield door
At closing insulated space；Temperature-reducing tablet and water pump, distributive pipe, collector pipe and phase change cold-storage plate in the construction trolley that cools down are formed and are closed
Circulation temperature lowering system, using cooling construction trolley, outer circulation ventilation and interior circulating ventilation to closing insulated space joint cooling.
2. phase change cold-storage cooling system in tunnel according to claim 1, it is characterised in that: the tunnel ground temperature energy heat exchanger
Including several groups heat exchange pipe, the heat exchange pipe, which is laid in, just to be served as a contrast between splash guard, faces upward in hollow bolt with tunnel
Arch top.
3. phase change cold-storage cooling system in tunnel according to claim 2, it is characterised in that: the cooling construction trolley includes
Bracket, temperature-reducing tablet, distributive pipe and collector pipe.
4. phase change cold-storage cooling system in tunnel according to claim 3, it is characterised in that: the ambient intelligence monitoring system
By temperature sensor, air velocity transducer, humidity sensor, data collector and analysis process system, monitored according to construction environment
Data, the working condition of control outer circulation ventilation and interior circulating ventilation.
5. it is the operational method of constructing tunnel face cooling using tunnel phase change cold-storage cooling system described in claim 1, it is special
Sign be the following steps are included:
Step 1, before performing two linings, positions are laid with heat exchange in the tunnel surface Chu Chen, hollow bolt and above inverted arch etc.
Heat exchange pipe is pierced by two lining concrete sidewalls via longitudinal drainage pipe lower section when pouring two lining concrete by pipeline；
Step 2, connect respectively with the inlet and outlet of heat exchange pipe by distributive pipe, collector pipe, and be located at cold-storage
The water outlet of the indoor phase change cold-storage plate of cave, water inlet connection, are driven using water circulating pump, form closed circulation cold storage pipe
Road；
Step 3, the first lining hole wall surface at tunnel construction tunnel face rear performs thermal insulation layer, and movement is installed in tunnel cross section
Shield door constitutes closed construction space；
Step 4, phase change cold-storage plate is transported in closure construction space, by distributive pipe, collector pipe respectively and on cooling trolley
Temperature-reducing tablet connection, driven using water circulating pump, form closed circulation temperature lowering pipeline；
Step 5, in closed construction space, lay in circulating fan, outer circulation blower air supply duct, temperature sensor, wet
Spend sensor, air velocity transducer；
Step 6, the draft type and ventilation quantity of ambient intelligence monitoring system intelligent control blower are utilized.
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| CN201910275251.3A CN109944626B (en) | 2019-04-08 | 2019-04-08 | Tunnel phase change cold accumulation cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275251.3A CN109944626B (en) | 2019-04-08 | 2019-04-08 | Tunnel phase change cold accumulation cooling system |
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| CN109944626A true CN109944626A (en) | 2019-06-28 |
| CN109944626B CN109944626B (en) | 2020-12-29 |
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Cited By (2)
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| CN110905581A (en) * | 2019-12-13 | 2020-03-24 | 湖南工程学院 | Movable type excavation roadway cooling equipment |
| CN113431634A (en) * | 2021-08-03 | 2021-09-24 | 中铁高新工业股份有限公司 | Special thermal-insulated platform truck of underground space construction |
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| CN109944626B (en) | 2020-12-29 |
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