CN102494383A - Method for ventilating and dehumidifying underground garage - Google Patents
Method for ventilating and dehumidifying underground garage Download PDFInfo
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- CN102494383A CN102494383A CN2011104296400A CN201110429640A CN102494383A CN 102494383 A CN102494383 A CN 102494383A CN 2011104296400 A CN2011104296400 A CN 2011104296400A CN 201110429640 A CN201110429640 A CN 201110429640A CN 102494383 A CN102494383 A CN 102494383A
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Abstract
The invention provides a method for ventilating and dehumidifying an underground garage. On the one hand, a plurality of sunken daylighting vents and vertical exhaust passages are separately arranged at proper positions of an outer wall of the underground garage and a carrier plate of the garage; on the other hand, the heat is respectively transferred to and stored in the soil inside, outside and around the underground garage through a cooling circulation system by means of condensation heat generated by concentrated refrigeration of a building in a high-temperature season, so that the temperature of the underground garage body and the temperature in the underground garage rise; and the underground garage is ventilated and dehumidified under common action of wind pressure and heat pressure.
Description
Technical field
The present invention relates to underground structure weather control, belong to heating and ventilation and building field, more specifically, the present invention relates to be used for the weather control of underground garage inner space.
Background technology
At present, urban highway traffic is crowded, and the parking stall, ground is nervous, build below the building large-scale underground garage solve stop very general; In addition, the underground civil air defense constructions and installations that grassroot project must the auxiliary construction some, peacetime these underground civil air defense constructions and installations majorities also use as underground garage.In the many areas of China; The underground garage high temperature season that has built up exists ventilate difference and serious moist problem; The moist main cause of underground garage in summer, gravity-flow ventilation is poor in the storehouse, temperature is low, and the above temperature in ground is high, the air water capacity is big; After hot and humid air gets into underground garage, meet cold junction and reveal.
Existing solution generally is in underground garage, to establish force ventilation or dehumidifier, and this measure consumed power is higher, does not meet requirements of saving energy, and effect on moisture extraction is also undesirable; For power saving, the force ventilation or the dehumidifier of most underground garages are seldom opened, and not only cause the air pollution in the underground garage, and the ground dewfall are very serious in the garage in, cause the vehicle incident that does not live car and pedestrian's tumble injury of stopping to occur repeatedly because of ground is wet and slippery.
Summary of the invention
The present invention aims to provide a kind of underground garage ventilation drying method; It is through establishing several sunk type ventilation and lighting wells along the underground garage exterior wall; Strengthen gravity-flow ventilation in the garage, the condensation heat that the central refrigerating of high temperature season building is produced is transferred in the underground garage, progressively improve temperature in the garage; After the normal operation in garage, high temperature season has the function of ventilation drying.For solving the problems of the technologies described above, the present invention adopts following technical scheme to be achieved:
A kind of underground garage ventilation drying method is characterized in that comprising the steps:
A, establish several ventilating openings and several sunk type ventilation and lighting wells, on shed deckhead, establish several hole to be provideds along the underground garage exterior wall;
B, the condensation heat that the central refrigerating of high temperature season building is produced shift respectively in the soil that is stored into (outward) and periphery in the underground garage body.
Further, also comprise in the said A step: the vertical exhaust duct of establishing several straight-through buildings or structures tops at shed deckhead hole to be provided place; Be provided with the gutter with ventilation and lighting well corresponding section on the ground of said underground garage, said gutter is stretched in the sump of underground garage; Said ventilation and lighting downhole end is joined through an inclined plane and said base plate, and ventilation and lighting well inwall posts reflective membrane; Said ventilating opening inside front is equipped with fire resisting shutter, and place, ground, fire resisting shutter below is provided with closed pockets, is used for the concrete groove of member shutoff when establishing the converting from wartime to peacetime production and vice versa of people's air defense underground garage on the outer side-lower ground; Said exhaust duct lower end is established fire resisting damper.
Control procedure comprises in the said B2 step:
The higher limit of B21, the inside and outside loop backwater of the said underground garage of setting terminal temperature sensor is a 32 degrees celsius;
The backwater terminal temperature sensor of B22, said garage inner ring road reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to radiating and cooling in the said garage outer ring;
The higher limit of the backwater terminal temperature sensor of B23, said garage outer ring reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to the second outdoor loop radiating and cooling.
Compared with prior art, advantage of the present invention and good effect are following:
Establish several large-scale ventilating openings and sunk type ventilation ventilation and lighting well on the one hand along the appropriate location of underground garage exterior wall, go up box out at one deck floor (or interlayer floor or shed deckhead); Making full use of high temperature season on the other hand is the condensation heat that the building central refrigerating is produced; Through cool cycles water pipe, water collecting and diversifying device and floor heating pipe; Above-mentioned heat is at first shifted the subsurface that is stored in the underground garage; Directly in the garage, dispel the heat through ground, and the redundance of above-mentioned heat shifted be close in the backfill soil and garage sole plate body and following concrete cushion of exterior wall below being stored into neighboring, garage-2 meter, after heating the garage body, in the garage, dispel the heat indirectly; Through directly with indirectly the garage is constantly heated, make temperature in the underground garage slightly high or equal surface air temperature; Take the measure of above-mentioned two aspects, under the acting in conjunction of blast and hot pressing, can not only realize the ventilation drying of high temperature season underground garage, other, unpowered ventilation of underground garage also can realize basically in season.
Description of drawings
Fig. 1 ventilation and lighting well construction sketch map;
Fig. 2 is the earth-source hot-pump system structural representation;
Fig. 3 wears the water string sketch map for garage outer ring pipeline;
Among Fig. 1: 100, ventilation and lighting well; 101, the borehole wall; 102, inclined plane; 103, reflective membrane; 104, barrier; 105,2 meters of ﹣ armored concrete cover sheet; 106, outdoor ground level;
300, underground garage; 301 underground garage exterior walls; 302, underground garage top board; 303, ventilating opening; 304, curtain rolling shaft; 305, fire resisting shutter; 306, gutter; 307, ground; 308, high building; 309, make up the blocking concrete groove; 310, fire resisting shutter closed pockets; 311, the underground floor heating pipe in the underground garage; 312, the floor heating pipe of laying in the concrete cushion below the underground garage sole plate; 313, floor heating pipe in the backfill soil below the underground garage neighboring-2 meter; 314, exhaust duct;
Among Fig. 2: 1, indoor loop; 2, refrigerant loop; 3, outdoor loop; 31, garage outer ring; 32, garage inner ring road; 33, other mode loops; 34, flatly pipe laying or vertically pipe laying loop; 4, plate type heat exchanger; 5, evaporimeter; 6, throttle mechanism; 7, condenser; 8, refrigeration compressor; 9, user; 10, water circulating pump; V1-V16, valve; T, temperature sensor; T1, measurement and control of temperature point;
Among Fig. 3: 105,2 meters of ﹣ armored concrete cover sheet; 306, gutter; 311, the underground floor heating pipe in the underground garage; 312, the floor heating pipe of laying in the concrete cushion below the underground garage sole plate; 313, floor heating pipe in the backfill soil below the underground garage neighboring-2 meter; 315, pre-buried water string through walls; 316, terminal water collector; 317, terminal water knockout drum; 318, the pre-buried base plate water string of wearing; 319, recirculated water return pipe; 320, recirculated water feed pipe; 321, connect the recirculated water feed pipe outlet of the outer terminal water knockout drum of wall; 322, the recirculated water return pipe inlet that connects the outer terminal water collector of wall.
The specific embodiment
General design idea of the present invention is following:
The present invention along the garage periphery establish several large-scale ventilating openings and sunk type ventilation and lighting well, regardless of the ground upwind, the ventilating opening of diverse location; All between different malleations or negative pressuren zone; Under the acting in conjunction of positive negative pressure, ground air gets in the garage and flows, when forming gravity-flow ventilation; Also dwindled the temperature difference of the above air of air and ground in the storehouse; Also can go up box out, extend to the exhaust duct by conventional design in the above building of garage floor in the underground garage, perhaps the vertical air channel of the several straight-through roofs of new as required design at one deck floor (or interlayer floor or shed deckhead).
In addition; It is the condensation heat that the building central refrigerating is produced that the present invention makes full use of high temperature season; Through cool cycles water pipe, water collecting and diversifying device and floor heating pipe; Above-mentioned heat is shifted respectively in the backfill soil and the earth below the garage sole plate below the subsurface that is stored in the underground garage, neighboring, garage-2 meter, make temperature in the underground garage slightly high or equal surface air temperature.Southern area is thought in case of necessity; Can between refrigeration plant, set up one group of recirculated water bypass; Guaranteeing under the prerequisite that refrigeration plant runs well directly from condenser front end heat-obtaining; The supply water temperature that gets into the garage inner ring road is controlled between the 37-45 degree Celsius, guarantees that simultaneously the higher limit of inner ring road return water temperature (condenser is gone in fingering) is no more than 32 degrees celsius.Like this, the present invention is directly dispelled the heat in the garage through ground, progressively improves temperature in the garage, and the temperature in the garage is close to or higher than surface temperature, and dewfall just is difficult to take place, and adds the effect of gravity-flow ventilation, and the problem of underground garage ventilation drying has just solved.
Need to prove that the shed deckhead box out establishes vertical exhaust duct; Can only can be regarded as supplementary means; Be to ventilate and establish in order to realize and to strengthen hot pressing in a organized way; Because the temperature in the garage is above the ground level behind the temperature, even do not establish special vertical exhaust duct, thermal current also can through inorganizations such as staircase, piping shaft hoist mobile.
It is following that the condensation heat that the present invention is produced the central refrigerating of high temperature season building shifts in the soil that is stored into (outward) in the underground garage body and periphery concrete grammar respectively:
In the backfill soil below B1, the subsurface in underground garage, underground garage neighboring-2 meter, lay floor heating pipe in the concrete cushion below the underground garage sole plate; Wherein, connect the vertical duct of the terminal water collecting and diversifying device of subsurface in the underground garage, before the ground concrete pouring, should accomplish pressure testing, fix and take necessary safeguard measure; The pipeline that connects terminal water collecting and diversifying device in meter following backfill soil of underground garage neighboring-2 is followed intermittence of backfill soil construction successively, in time passes exterior wall and reserves water string and get in the garage, and accomplish all constructions such as pressure testing, fixing, waterproof shutoff simultaneously; The pipeline that connects terminal water collecting and diversifying device in the following concrete cushion of underground garage sole plate has been accomplished hot melt and has been connected and pressure testing before the sole plate reinforcing bar binding, pass water string and extend to the above and secure fixation of design of surface absolute altitude in the garage; This step also comprises, accomplish the debugging that is connected of pipelines at different levels, temperature sensor, switch valve, electric control circuit etc. and refrigerant loop, and above-mentioned all technological means can follow all the construction and the HVAC construction that must take place to implement to accomplish.
B2, the heat that earth-source hot-pump system is gathered from the indoor user loop; Be stored in the above-mentioned floor heating pipe through the cooling circulating water transfer; Said earth-source hot-pump system comprises indoor user loop, refrigerant loop, the first outdoor loop and the second outdoor loop, and the said first outdoor loop is claimed the special chamber outer ring again, and it mainly plays direct heat radiation and thermolysis indirectly; The second outdoor loop is claimed common outdoor loop again, and its heat radiation heat accumulation mode is conventional; Said special outdoor loop comprises garage inner ring road and garage outer ring, and said garage inner ring road comprises and is arranged on underground floor heating pipe, water collecting and diversifying device and the ground connection pipeline at different levels that matches in the underground garage; Said garage outer ring comprises two parts; A part is the connection pipelines at different levels in floor heating pipe, water collecting and diversifying device and the garage that matches in the backfill soil below the underground garage neighboring-2 meter, and another part is floor heating pipe, the water collecting and diversifying device laid in the concrete cushion below the underground garage sole plate and the connection pipelines at different levels in the garage that matches; Said common outdoor loop comprises two parts, and a part is the outdoor loop of standard, i.e. level or vertically pipe laying loop, and another part is natural water source loops such as the cooling tower that is connected through plate type heat exchanger or rivers,lakes and seas.
Control procedure is following in this step:
The higher limit of B21, the setting inside and outside loop return water temperature of said underground garage (condenser is gone in fingering) is 32 degrees celsius;
The backwater terminal temperature sensor of B22, said garage inner ring road reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to radiating and cooling in the said garage outer ring;
The backwater terminal temperature sensor of B23, said garage outer ring reaches 32 when spending, and the whole of recirculated water or a part are wherein switched to common outdoor loop radiating and cooling;
Above-mentioned handoff procedure according to the temperature upper control limit of setting in advance, is opened the confession backwater valve of waiting the system that cuts simultaneously, and then is slowly closed the confession backwater valve of waiting the system that cuts off, to keep whole system even running in handoff procedure.
Introduce in detail in the face of the earth-source hot-pump system that has the special chamber outer ring among ventilation and lighting well, air discharging structure and the present invention down.
(1) structure of ventilation and lighting well:
Like Fig. 1; Cardinal wind with reference to local summer; Stay in pairs to establish along the underground garage exterior wall and can form cross-ventilated ventilating opening 303 and ventilation and lighting well 100; In addition; Extend to respectively at two ends, underground garage garage main channel the garage exterior wall position, the corresponding wall face of underground garage levels ramp of coming in and going out over against automobile, do not influencing appropriate location below the traffic above-ground high building, helping the underground garage ventilation by forced draft and not influencing other position of traffic above-ground, ventilating opening 303 and ventilation and lighting well 100 can be set; In a word; Be regarded as a complete system to underground garage, regardless of surface wind direction, the windward side is a malleation; Lee face is that the rule of negative pressure is an objective reality; Under positive action of negative pressure, ground air-flow is flowed in the space of underground garage, the air on ground is exchanged with the interior air generation of underground garage to greatest extent.As shown in Figure 1; Present embodiment is established some sunk type ventilation and lighting wells 100 to (specifically can decide according to the area and the shape in garage) straight-through underground garage base plate in the side of every high building outside the garage; High building 308 outdoor units inlet should be avoided in the position of ventilation and lighting well 100; It is spacious that ventilation and lighting well 100 goes out the above ground portion standard-sized sheet, establishes stainless steel barrier 104 anti-personnels and fall.Ventilating opening 303 open with the sidewall of sinking ventilation and lighting well 100 correspondence position underground garages on; There is 15-20 square metre approximately; The inner wall surface of the borehole wall 101 all adopts rough reflectorized material in the sinking ventilation and lighting well, and present embodiment pastes reflective membrane 103, like this; The ventilation and lighting well also plays the effect of daylighting daytime when solving ventilation.
The fire resisting shutter 305 that fire endurance was not less than 3 hours is established in the top of ventilating opening 303; Curtain rolling shaft 304 is fixed on outside the garage on the inner wall; 305 vertical ground places establish a closed pockets 310 with fire resisting shutter; When fire took place, fire resisting shutter and fire-fighting centralized-control center were realized interlock, and fire resisting shutter falls rapidly to satisfy the fire safety rules requirement.For guaranteeing the ventilation effect in the garage; Generally the suitable four seasons of fire resisting shutter open wide, and consider that China's each department vast in territory temperature difference is big, and frost region is arranged; Freezing season then according to the insulation requirement, take fire resisting shutter 305 complete shut-downs or only be closed to a certain degree.
On people's air defense underground garage ventilating opening 303 outside garage floors 307, establish and make up blocking concrete groove 309, its groove depth and groove width are larger than the insertion portion of plug members; The length overall of groove can be greater than hole length overall 10-20 centimetre; Accomplish during the ground concrete construction, shutoff designs by corresponding standard with prefabricated components, must satisfy the force request of ventilation and lighting well with the sand backfill; And should prefabricated completion before completion of works, to satisfy the rapid shutoff during the converting from wartime to peacetime production and vice versa.
Ventilation and lighting well 100 should carry out with the construction of garage body construction synchronously, bottom and garage sole plate oblique, and promptly the ventilation and lighting downhole end is joined with the underground garage base plate through an inclined plane 102; Not only material-saving and conveniently outer waterproof construction; After structure construction was accomplished, reflective membrane 103 was all pasted on the surface of hang down in the well wall and skew wall, and inclined wall part can further be processed into little semicircle shape; Reflective refraction angle is big and even, can replace the illumination in the underground garage certain limit daytime.In order to prevent that rainwater from going into underground garage from the ventilation and lighting well stream and forming ponding on the ground, the present invention is provided with annular drainage ditch 306 with ventilation and lighting well corresponding section on underground garage ground 307, and said gutter 306 is stretched in the sump of underground garage 300.
(2) air discharging structure:
For strengthening the effect that hot pressing is ventilated, the present invention stays the vertical exhaust duct of establishing straight-through buildings or structures top on shed deckhead.The position of exhaust duct 314 is selected; Should utilize the original exhaust duct of building to extend in the underground garage as far as possible; Also can establish the exhaust duct of straight-through roof in case of necessity according to will looking for novelty of ventilation drying; The fire resisting damper that 280 degree Celsius can be closed is automatically established in the below of exhaust duct, is in order to satisfy the requirement of fire safety rules.The top board box out should be reserved when structure construction, and exhaust duct then can be at other place prefabricate, and on-the-spot aggregate erection is accomplished.
(3) have the earth-source hot-pump system of special chamber outer ring:
Said earth-source hot-pump system is as shown in Figure 2, comprises indoor loop 1, refrigerant loop 2; Outdoor loop 3, said indoor loop 1 connects refrigerant loop 2, and said refrigerant loop 2 connects outdoor loop 3; Outdoor loop 3 comprises special chamber outer ring and common outdoor loop; Said special chamber outer ring comprises garage inner ring road 32, garage outer ring 31, and said common outdoor loop comprises two parts, and a part is the outdoor loop of standard; Be level or pipe laying loop 34 vertically, another part is natural water source loops 33 such as the cooling tower that is connected through plate type heat exchanger 4 or rivers,lakes and seas.Wherein, Garage inner ring road 32 comprises the subsurface floor heating pipe 311 that is arranged in the underground garage, and garage outer ring 31 comprises the floor heating pipe of laying in the floor heating pipe 313 that is arranged in meter following backfill soil of underground garage neighboring-2 and the concrete cushion below the underground garage sole plate 312.
Traditional earth-source hot-pump system is through middle heat transfer medium heat accumulation or heat-obtaining in the outdoor loop 34 of standard, the heat exchange between realization system and the earth; Earth-source hot-pump system of the present invention is a research object with building (underground garage) mainly; Mainly realize the heat transfer and the heat radiation of system and underground garage body through earth-source hot-pump system, secondly also can take into account system and garage body with heat accumulation or the heat-obtaining in the surrounding soil of storehouse.
High temperature season water resource heat pump equipment run duration; Satisfying condensation heat before or after the 32 transfer storages of garage inner ring road; Should be according to setting the temperature upper limit that gets into condenser 7 cooling circulating waters; Through with the magnetic valve or the motor-driven valve of temperature sensor T interlock, the whole of recirculated water or a part are wherein automatically switched in the circulating water pipeline that leads to garage outer ring 31; Be stored in garage outer ring 31 when the cooling circulating water of a large amount of 37 degree Celsius shifts, except making the intensification of underground garage exterior wall and sole plate indirectly, also stored comparatively considerable heat energy for heat supply in winter.The leaving water temperature of the recirculated water in the garage outer ring 31 is when setting the temperature upper limit that gets into condenser 7 cooling circulating waters; Through with the magnetic valve or the motor-driven valve of temperature sensor T interlock, the whole of recirculated water or a part are wherein switched to common outdoor loop radiating and cooling rapidly.Southern area, refrigeration duty is big, and thermic load is little, and unnecessary heat is fit to switch to cooling tower or rivers,lakes and seas radiating and cooling satisfying the inside and outside loop heat radiation heat accumulation in garage; Northern area, thermic load is big, and refrigeration duty is little, the unnecessary level that is hot-switched onto or vertically the heating coil radiating and cooling is comparatively suitable in the cooling circulating water; Because the main starting point of this method is in order to solve the ventilation drying of high temperature season underground garage; As it is high to adopt the ground pipe laying to store the radiating and cooling cost; Northern area is under the precondition that guarantees the ventilation drying of high temperature season underground garage, and outer ring 31 unnecessary heat in garage also can adopt and switch to cooling tower or rivers,lakes and seas radiating and cooling; It is main that heat supply in winter is then concentrated the thermal source that provides with the city, and outer ring 31 reclaims part heat from the garage through the earth source heat pump unit, and is additional as the thermal source of heat supply in winter.
The concrete operational process of freezing summer: valve V5, valve V6, valve V7, valve V8, valve V9, valve V10 open in the earth source heat pump unit, and valve V1, valve V2, valve V3, valve V4 close; The chilled water that evaporimeter 5 comes out is directly sent into user 9 to building cooling on the ground, and recirculated water is drawn condensation heat in condenser 7, and heated recirculated water at first flows into 32 coolings of garage inner ring road; When the temperature sensor of garage inner ring road 32 surpasses on the 32 degrees celsius in limited time; Valve V11 and valve V12 open, and valve V9 and valve V10 close, and recirculated water injects 31 coolings of garage outer ring; Garage outer ring 31 run durations; Reach the lowest temperature of setting like the temperature control point T1 in the garage inner ring road 32, then through sensor Open valve V9 and valve V10 again, valve-off V11 and V12; In like manner; Garage outer ring 31 can switch before reaching filament saturation with garage inner ring road 32 repeatedly; Real saturated after Open valve V13 and valve V14 or valve V15 and valve V16 again, valve-off V11 and valve V12, switch step is narrated identical with logical relation and front.
Heat concrete operational process winter: valve V1, valve V2, valve V3, valve V4, valve V11, valve V12 unlatching, valve V5, valve V6, valve V7, valve V8 close in the earth source heat pump unit; Recirculated water in the garage outer ring 31 carries low-grade heat and gets in the evaporimeter 5; Through the condenser in the heat pump heat that extracts is sent into user 9; To space heating on the ground, the heat that stores when freeze summer in the balance garage outer ring 31 simultaneously; The heat of from garage outer ring 31, extracting should not be more than the heat that stores, and the heat that store summer in the garage inner ring road 32 then tries not to reclaim, the thermic load insufficient section, but vertically the Open valve V13 and the valve V14 of pipe laying, valve-off V11 and valve V12 are arranged; But Open valve V15 and valve V16 that natural water source is arranged; Also can be through plate type heat exchanger for earth source heat pump provide certain heat, switch step is identical with the front narration with logical relation, generally speaking; The breach of northern area thermic load, through municipal central heating solve comparatively general.
The condensation heat that the present invention utilizes the high temperature season refrigeration plant to produce by conventional operation; Trunk line through cooling circulating water and lateral, water collecting and diversifying device at different levels, terminal water collecting and diversifying device and buried radiating tube; At first shift and be stored into garage inner ring road 32; Garage inner ring road 32 is relatively independent circulatory systems; Generally speaking after accepting refrigeration plant and discharging the cooling circulating water of a large amount of 37 degree Celsius, can make garage floor bring up to identical gradually with the temperature in the garage or a little more than surface air temperature with surface air temperature.As long as refrigeration plant normally moves; Garage inner ring road 32 is exactly stable radiator, and the inlet temperature that needs only exhaust duct in the garage is higher than the outlet temperature of roof, under the double action of the temperature difference and the discrepancy in elevation; The stack effect of exhaust duct will progressively manifest, and have good hot pressing ventilation effect.
The terminal water collecting and diversifying device of garage inner ring road 32 should be located at below ground; Connect the standpipe that water collecting and diversifying device goes out ground, should be arranged in does not influence the walkway with garage's passage and be convenient to the constructing operation place, in the garage after the backfill soil completion; Generally to, establish by rammer 6 centimeters thick concrete cushions on banketing; But buried water collecting and diversifying device all adopts the chemical tubing that is connected with the material hot melt with buried radiating tube, before radiating tube lays, radiating tube be connected with the hot melt of water collecting and diversifying device accomplish and pressure testing qualified; Concrete strength reaches 30% just can also be fixed by unwrapping wire cloth radiating tube on bed course; The caliber of floor heating radiating tube should confirm that with the laying spacing safeguard measure that pressure testing, pressurize and the construction period of radiating tube and terminal water collecting and diversifying device take pipeline before the pouring ground concrete etc. can be operated in strict accordance with the requirement that common floor heating pipe is constructed according to calculating.
Floor heating pipe in meter following backfill soil of underground garage neighboring-2 lays, at 10 centimeters thick sands that sieve of excavation finished surface bottom backfill, and smooth compacting; Size and actual needs according to underground garage; The arrangement of floor heating pipe can adopt series, parallel or whole parallel connection to add local series connection; The every interval of the radiating tube of parallel laid should adopt wood lath and cotton rope colligation to fix for two meters; Should carry out pressure test and handle before the sand backfill once more divides a collector pipe to temporarily anchor to more than the backfill absolute altitude; And when the backfill absolute altitude is reserved the absolute altitude of steel sleeve through walls near exterior wall, in time will divide collector pipe to pierce in the underground garage, carry out the waterproof shutoff between water string and the chemical tubing simultaneously; Ground elevation is negative below two meters, the backfill of suitable all employings medium coarse sand, and 25 centimeters is one deck, every layer of intact limit of backfill watered the waterside and towed with the plate vibrator level, in The water splash in all directions, can reach the quality requirement of vibration compacting; Surpass 90 centimeters like negative height to the excavation finished surface below two meters, flatly heating coil just can be established in layering, and the centre-to-centre spacing between principle upper strata and the layer should not be less than 80 centimeters; All pipeline constructions are carried out a water pressure test by standard after accomplishing again, and pass the test is added a cover the thick armored concrete cover plate of 4-6 centimetre at negative 2 meters, do not damage to guarantee the ground pipe laying.
Floor heating pipe under the sole plate in the concrete cushion lays; Basic identical with underground floor heating pipe way in the garage; Because of the thickness of most concrete cushions is 10 centimeters; Terminal water collecting and diversifying device and floor heating radiating tube be as if intersecting, and the part of water collecting and diversifying device may be lower than absolute altitude at the bottom of the bed course, will reduce the range of disturbance to undisturbed soil when specifically constructing as far as possible; The floor heating pipe area of subsurface laying equates basically in the gross area of floor heating pipe and the garage in the concrete cushion under the underground garage sole plate, shape is similar; The plan-position of terminal water knockout drum 317, water collector 316 and radiating tube can with subsurface in the garage lay corresponding; The branch collector pipe and the supporting water string that exceed garage floor note avoiding wall, post, walkway and garage's passage, and with the garage in the ground standpipe that goes out of subsurface water collecting and diversifying device reserve necessary mounting distance; The concrete cushion construction is accomplished; Must being one according to corresponding standard pair and buried water collecting and diversifying device hot melt, all pipelines that go out ground carry out the water pressure test; Take reliable measure to fix the pre-buried base plate water string 318 of wearing after the pass the test, guarantee that all chemical tubing nodes do not damage.
The recirculated water return pipe 319, the recirculated water feed pipe 320 that connect terminal water collecting and diversifying device in the concrete cushion; The connecting line that also comprises measurement and control of temperature point T1 that passes simultaneously, blast pipe etc. before the sole plate concrete construction, have been passed more than the design of surface absolute altitude in the water string 316 access garages; Connect the connecting line, blast pipe of recirculated water feed pipe, return pipe, the measurement and control of temperature point T1 of terminal water collecting and diversifying device etc. outside the garage in the backfill soil; Then take the pre-buried water string 315 through walls of underground garage exterior wall; In backfill soil construction period, the recirculated water return pipe that supplies the recirculated water feed pipe outlet 321 through connecting the outer terminal water knockout drum of wall respectively such as water return pipeline and other pipe, line, connects the outer terminal water collector of wall entered the mouth 322 to be penetrated in the underground garage.
Through above-mentioned work progress; The branch of the inside and outside loop in the garage chemical pipeline that catchments all gets in the space in the underground garage; And accomplished in the garage installation with metallic conduit joint connector, follow-up construction activities can be fully according to routine operation, no longer superfluous words.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But everyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and remodeling that above embodiment did, still belong to the protection domain of technical scheme of the present invention according to technical spirit of the present invention.
Claims (10)
1. a underground garage ventilation drying method is characterized in that comprising the steps:
A, establish several ventilating openings and several sunk type ventilation and lighting wells, on shed deckhead, establish several hole to be provideds along the underground garage exterior wall;
B, the condensation heat that the central refrigerating of high temperature season building is produced shift respectively in the soil that is stored into (outward) and periphery in the underground garage body.
2. method according to claim 1 also comprises in the said A step: the vertical exhaust duct of establishing several straight-through buildings or structures tops at shed deckhead hole to be provided place.
3. underground garage ventilation drying method according to claim 2 is characterized in that, is provided with the gutter with ventilation and lighting well corresponding section on the ground of said underground garage, and said gutter is stretched in the sump of underground garage.
4. underground garage ventilation drying method according to claim 3 is characterized in that said ventilation and lighting downhole end is joined through an inclined plane and said base plate, and ventilation and lighting well inwall posts reflective membrane.
5. underground garage ventilation drying method according to claim 4; It is characterized in that; Said ventilating opening inside front is equipped with fire resisting shutter; Place, ground, fire resisting shutter below is provided with closed pockets, is used for the concrete groove of member shutoff when establishing the converting from wartime to peacetime production and vice versa of people's air defense underground garage on the outer side-lower ground.
6. underground garage ventilation drying method according to claim 2 is characterized in that said exhaust duct lower end is established fire resisting damper.
7. according to each described underground garage ventilation drying method of claim 1-6, comprise in the said B step:
In the backfill soil below B1, the subsurface in underground garage, underground garage neighboring-2 meter, lay floor heating pipe in the concrete cushion below the underground garage sole plate;
B2, the cooling circulating water through earth-source hot-pump system shift heat and are stored in the above-mentioned floor heating pipe; Said earth-source hot-pump system comprises the first outdoor loop and the second outdoor loop; The said first outdoor loop comprises garage inner ring road and garage outer ring; Said garage inner ring road comprises the connection pipelines at different levels that are arranged on underground floor heating pipe, water collecting and diversifying device in the underground garage and match; Said garage outer ring comprises two parts; A part is the connection pipelines at different levels in floor heating pipe, water collecting and diversifying device and the garage that matches in the backfill soil below the underground garage neighboring-2 meter, and another part is floor heating pipe, the water collecting and diversifying device laid in the concrete cushion below the underground garage sole plate and the connection pipelines at different levels in the garage that matches; The said second outdoor loop comprises two parts, and a part is the outdoor loop of standard, i.e. level or vertically pipe laying loop, and another part is natural water source loops such as the cooling tower that is connected with refrigerant loop through plate type heat exchanger or rivers,lakes and seas.
8. according to the said underground garage ventilation drying of claim 7; The pipeline that connects terminal water collecting and diversifying device in meter following backfill soil of underground garage neighboring-2 in the said B1 step; Follow the intermittence of backfill soil construction successively; In time pass exterior wall and reserve water string and get in the garage, and accomplish all constructions such as pressure testing, fixing, waterproof shutoff simultaneously; The pipeline that connects terminal water collecting and diversifying device in following the concrete cushion of underground garage sole plate has been accomplished hot melt and has been connected and pressure testing before the sole plate reinforcing bar binding, pass water string and extend to more than the design of surface absolute altitude in the garage and accomplish temporary fixed.
9. underground garage ventilation drying method according to claim 7, control procedure comprises in the said B2 step:
The higher limit of B21, the inside and outside loop backwater of the said underground garage of setting terminal temperature sensor is a 32 degrees celsius;
The backwater terminal temperature sensor of B22, said garage inner ring road reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to radiating and cooling in the said garage outer ring;
The higher limit of the backwater terminal temperature sensor of B23, said garage outer ring reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to the second outdoor loop radiating and cooling.
10. underground garage ventilation drying method according to claim 8, control procedure comprises in the said B2 step:
The higher limit of B21, the inside and outside loop backwater of the said underground garage of setting terminal temperature sensor is a 32 degrees celsius;
The backwater terminal temperature sensor of B22, said garage inner ring road reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to radiating and cooling in the said garage outer ring;
The higher limit of the backwater terminal temperature sensor of B23, said garage outer ring reaches 32 when spending, with circulation supply, the parts whole or wherein of backwater switch to the second outdoor loop radiating and cooling.
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| CN105952007A (en) * | 2016-06-27 | 2016-09-21 | 中铁十九局集团电务工程有限公司 | Automatic water discharging device of ventilation pipeline |
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| CN106088532A (en) * | 2016-08-23 | 2016-11-09 | 石河子大学 | A kind of finished product basement in residence light shaft and installation method thereof |
| CN107327119A (en) * | 2017-06-23 | 2017-11-07 | 中国矿业大学 | Ventilation systems in underground car parks daylighting is catchmented integrated apparatus |
| CN107476424A (en) * | 2017-08-31 | 2017-12-15 | 江苏远瀚建筑设计有限公司 | Basement and its construction technology |
| CN107476424B (en) * | 2017-08-31 | 2019-05-31 | 江苏远瀚建筑设计有限公司 | Basement and its construction technology |
| CN107726525A (en) * | 2017-10-10 | 2018-02-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of pipe gallery Moistureproof dehumidification ventilating system and its implementation |
| CN108518791A (en) * | 2018-04-16 | 2018-09-11 | 江西理工大学 | A kind of volumed space building layering air conditioner ventilating system |
| CN108518791B (en) * | 2018-04-16 | 2023-08-01 | 江西理工大学 | Layered air conditioner ventilation system for large-space building |
| CN112539391A (en) * | 2020-11-24 | 2021-03-23 | 江苏欧特电子科技有限公司 | Special daylighting ventilation protection closing device of civil air defense engineering |
| CN114135951A (en) * | 2021-11-15 | 2022-03-04 | 中铁第四勘察设计院集团有限公司 | Dehumidification system and control method |
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