CN205372903U - Row's return air and dehumidification system of reverse construction in -process basement - Google Patents
Row's return air and dehumidification system of reverse construction in -process basement Download PDFInfo
- Publication number
- CN205372903U CN205372903U CN201620099630.3U CN201620099630U CN205372903U CN 205372903 U CN205372903 U CN 205372903U CN 201620099630 U CN201620099630 U CN 201620099630U CN 205372903 U CN205372903 U CN 205372903U
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- China
- Prior art keywords
- control valve
- backwind tube
- exhaust duct
- air
- basement
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a row's return air and dehumidification system of reverse construction in -process basement, it includes: the exhaust pipe, the backwind tube is connected ventilation pipe between exhaust pipe and the backwind tube, filter equipment and the purifier of connection on the exhaust pipe, the air inlet end is connected on the exhaust pipe between filter equipment and purifier, and the dehumidifying device that the air -out end links to each other with purifier, control valve A and the control valve D of connection on the backwind tube, the control valve B of connection on the ventilation pipe, the connection is at the control valve C of dehumidifying device air inlet end, the connection is at the control valve D of backwind tube upper end, and the control valve E of connection in the exhaust pipe upper end, control valve A and control valve D equipartition are put at the upstream side of backwind tube with the ventilation pipe junction, and control valve E arranges at the downstream side of exhaust pipe with the backwind tube junction. The utility model discloses the different degree of depth, different work condition and in a particular case's basement ventilation demand can be satisfied, when handling secret foul air, the underground operation environment is improved to the reduction is to atmospheric pollution.
Description
Technical field
Flowing back to down wind technical field when this utility model relates to deep foundation pit construction provisionally, after completing particular for contrary sequence method beam slab, under semi-enclosed execution conditions, basement flows back to wind and dehumidification system.
Background technology
At present, deep foundation pit construction, during the construction of especially ultra-deep foundation pit, because effectively not flowing back to wind system temporarily, the dusty gas that underground construction equipment discharges cannot be arranged to ground in time, cause underground job bad environments, especially in reverse construction, owing to utilizing permanent floor to replace traditional support, a few place is only stayed to fetch earth mouth as vertical transport passage, construction operation under semiclosed, the severe of environment also not only only has air pollution, and cannot effectively removing of serious dampness is further degrading basement construction working environment.
For deep basal pit and reverse construction, basement air draft generally has two kinds of situations, one is utilize blower fan to be transmitted to underground by ground fresh air, two is utilize blower fan that basement air pollution is discharged discharge to ground and to utilize nature return air to improve underground environment, the first way is only be diluted by contaminated air, and untreated or eliminating, atmospheric environment is caused certain pollution by the second way, basement dampness is not all done effective process by both ways, and the effect therefore improving underground job environment for many years is all inconspicuous.
This utility model solves emphatically in deep basal pit especially reverse construction process, how effectively to be discharged by dusty gas, and sets up purification and dehumidification function in blood circulation, while improving underground job environment, and protection ground atmospheric environment.
Utility model content
This utility model purpose is: during for existing contrary sequence method basement construction; dehumidifying, flow back to wind system and cannot independently meet underground room environmental and improve demand and go up the situation of environmental protection requirement contentedly; the special one basement that proposes flows back to wind and dehumidification system; meet different depth, different operating mode and basement ventilation requirement in particular cases; to be effectively effectively improved underground job environment; while solving ventilation, dehumidifying problem, reach the effect of environmental conservation.
The technical solution of the utility model is: in described reverse construction process basement flow back to wind and dehumidification system includes:
Its one end stretches in the underground space that the other end stretches out the exhaust duct outside the underground space,
Its one end stretches into the backwind tube that in the underground space, the other end is connected with described exhaust duct,
It is connected to the ventilation duct between described exhaust duct and backwind tube,
The defecator being connected on described exhaust duct and be sequentially arranged along the air draft direction of this exhaust duct and purifier,
Its air intake is connected on the exhaust duct between described defecator and purifier and the dehumidifier apparatus that outlet air end is connected with described purifier,
It is connected to the control valve A on described backwind tube and controls valve D,
It is connected to the control valve B on described ventilation duct,
It is connected to the control valve C of described dehumidifier apparatus air intake,
It is connected to the control valve D of described backwind tube upper end, and
It is connected to the control valve E of described exhaust duct upper end；
Described control valve A and control valve D is arranged in the upstream side of described backwind tube and ventilation duct junction, and described control valve E is arranged in the downstream of described exhaust duct and backwind tube junction.
This utility model, on the basis of technique scheme, also includes following preferred version:
Described exhaust duct is also associated with being positioned at the air detecting device of described defecator upstream side.
Described ventilation duct is arranged in the described underground space.
Described control valve D is arranged in the upstream side of described control valve A.
Described control valve A arranges against the junction of described backwind tube with ventilation duct.
Described control valve D arranges against the junction of described backwind tube with exhaust duct.
Described control valve C arranges with described exhaust duct junction against described dehumidifier apparatus air intake.
The utility model has the advantages that: this basement of this utility model flows back to wind and dehumidification system has four kinds of mode of operations, can be respectively directed to Construction Condition four kinds different, specific as follows:
1, in the contrary working method engineering that shallow foundation is cheated or the open area that fetches earth is bigger, full air draft pattern can be opened, utilize nature to mend wind and improve underground environment.
2, in deep basal pit and general contrary working method engineering, air draft+return air is utilized to form circulated air mode of operation.
3, during deep foundation pit construction, when as high in fire suppression or underground biogas concentration, the full air draft pattern of emergency opening, dusty gas is discharged foundation ditch by the shortest time.
4, when basement dampness is heavier, can allow filtration after gas through dehumidification system process after in purified system, be effectively improved basement humidity construction environment.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described further:
Fig. 1 is the structural representation flowing back to wind and dehumidification system of basement in this reverse construction process of this utility model embodiment；
Wherein:
1-exhaust duct, 2-backwind tube, 3-ventilation duct, 4-controls valve A, 5-and controls valve B, 6-control valve C, 7-control valve D, 8-control valve E, 9-air detecting device, 10-defecator, 11-purifier, 12-dehumidifier apparatus.
Detailed description of the invention
Fig. 1 illustrates the specific embodiment flowing back to wind and dehumidification system of basement in this reverse construction process of this utility model, and this system mainly includes exhaust duct 1, backwind tube 2, ventilation duct 3, controls valve A4, controls valve B5, controls valve C6, controls valve D7, controls valve E8, air detecting device 9, defecator 10 and purifier 11.Wherein:
When practical application, one end of described exhaust duct 1 is stretched in the underground space, and the other end stretches out, and the underground space is outer to be connected with ambient atmosphere.
When practical application, one end of described backwind tube 2 is stretched in the underground space, and the other end is connected with described exhaust duct 1.
Ventilation duct 3 is connected between described exhaust duct 1 and backwind tube 2, and when practical application, this ventilation duct 3 is also normally positioned in the underground space.
Defecator 10 and purifier 11 are both connected on described exhaust duct 1, and purifier 11 is positioned at the downstream (downstream of exhaust duct air draft wind direction) of defecator 10, namely defecator 10 and purifier 11 are sequentially arranged along the air draft direction of this exhaust duct 1.
Air detecting device 9 is connected on exhaust duct 1, and is positioned at the upstream side of described defecator 10, and namely air detecting device 9, defecator 10 and purifier 11 are sequentially arranged along the air draft direction of exhaust duct 1.Air detecting device 9 is mainly for detection of the quality of underground air, in order to regulate the opening and closing of each control valve according to the air quality of its detection, reaches function and the effect of table 1 below.
The air intake of dehumidifier apparatus 12 is connected on the exhaust duct 1 between described defecator 10 and purifier 11, and the outlet air end of dehumidifier apparatus 12 is connected with described purifier 11.
Control valve A4 and control valve D7 and be both connected on described backwind tube 2, and control valve A4 and control valve D7 and be arranged in the upstream side (upstream side mentioned here refers to the upstream side in outgoing airflow direction in backwind tube) of described backwind tube 2 and ventilation duct 3 junction.Wherein, control valve A to arrange against the junction of described backwind tube 2 with ventilation duct 3, and control valve D7 and arrange against the junction of described backwind tube 2 with exhaust duct 1, control valve D7 and be arranged in the upstream side (upstream side mentioned here also refers to the upstream side in outgoing airflow direction in backwind tube) controlling valve A4.
Control valve E8 and be arranged in the downstream (for air draft wind direction in exhaust duct) of described exhaust duct 1 and backwind tube 2 junction.
Control valve C6 and be arranged in described dehumidifier apparatus 13 air intake, be specifically arranged in the position against dehumidifier apparatus 13 air intake Yu exhaust duct 1 junction.
With reference to shown in table 1, this basement of the present embodiment flows back to wind and dehumidification system at least has following four mode of operation:
The first: only opening controlling valve B5 and control valve E8, all the other control valve and close, basement air pollution row overhead initially enters defecator afterwards, bulky grain float is tentatively filtered, air after filtration drains into air by demand is outer after dehydrating unit to purifier, it may be achieved discharge the effect in underground construction space after being purified by underground air.
Under this mode of operation, the upper tubular section of backwind tube 2 is in closed state, and lower tubular section is communicated with exhaust duct 1 by ventilation duct 3, plays air draft effect.
The second: opening controlling valve A4, control valve C6 and control valve D7 simultaneously, all the other control valves and close, it may be achieved deep basal pit air circulating dehumidification effect, it is adaptable to the situation that underground space working environment is moist.
The third: opening controlling valve A4 and control valve D7 simultaneously, when other control valves closedown, it may be achieved foundation ditch underground air cleaning circulatory function.
4th kind: opening controlling valve B5, control valve C6 and control valve E8 simultaneously, when other control valves closedown, it may be achieved foundation ditch underground air independent humidity control function.
Table 1:
Certainly, above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow people will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations done according to the spirit of this utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.
Claims (7)
1. in a reverse construction process basement flow back to wind and dehumidification system, it is characterised in that this system includes:
The exhaust duct (1) that in the underground space, the other end stretches out outside the underground space is stretched in its one end,
Its one end stretches into the backwind tube (2) that in the underground space, the other end is connected with described exhaust duct (1),
It is connected to the ventilation duct (3) between described exhaust duct (1) and backwind tube (2),
It is connected to defecator (10) and purifier (11) that upper and along this exhaust duct (1) the air draft direction of described exhaust duct (1) is sequentially arranged,
Its air intake is connected to the dehumidifier apparatus (12) that on exhaust duct (1) between described defecator (10) and purifier (11), outlet air end is connected with described purifier (11),
It is connected to control valve A (4) on described backwind tube (2) and controls valve D (7),
It is connected to control valve B (5) on described ventilation duct (3),
It is connected to control valve C (6) of described dehumidifier apparatus (13) air intake,
It is connected to control valve D (7) of described backwind tube (2) upper end, and
It is connected to control valve E (8) of described exhaust duct (1) upper end；
Described control valve A (4) and control valve D (7) are arranged in the upstream side of described backwind tube (2) and ventilation duct (3) junction, and described control valve E (8) is arranged in the downstream of described exhaust duct (1) and backwind tube (2) junction.
2. in reverse construction process according to claim 1 basement flow back to wind and dehumidification system, it is characterised in that: described exhaust duct (1) is also associated with being positioned at the air detecting device (9) of described defecator (10) upstream side.
3. in reverse construction process according to claim 1 basement flow back to wind and dehumidification system, it is characterised in that: described ventilation duct (3) is arranged in the described underground space.
4. in reverse construction process according to claim 1 basement flow back to wind and dehumidification system, it is characterised in that: described control valve D (7) is arranged in the upstream side of described control valve A (4).
5. in reverse construction process according to claim 4 basement flow back to wind and dehumidification system, it is characterised in that: described control valve A (4) is arranged against the junction of described backwind tube (2) with ventilation duct (3).
6. in the reverse construction process according to claim 4 or 5 basement flow back to wind and dehumidification system, it is characterised in that: described control valve D (7) is arranged against the junction of described backwind tube (2) with exhaust duct (1).
7. in reverse construction process according to claim 1 basement flow back to wind and dehumidification system, it is characterised in that: described control valve C (6) is arranged against described dehumidifier apparatus (13) air intake and described exhaust duct (1) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099630.3U CN205372903U (en) | 2016-01-29 | 2016-01-29 | Row's return air and dehumidification system of reverse construction in -process basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099630.3U CN205372903U (en) | 2016-01-29 | 2016-01-29 | Row's return air and dehumidification system of reverse construction in -process basement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205372903U true CN205372903U (en) | 2016-07-06 |
Family
ID=56262572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099630.3U Withdrawn - After Issue CN205372903U (en) | 2016-01-29 | 2016-01-29 | Row's return air and dehumidification system of reverse construction in -process basement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205372903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546706A (en) * | 2016-01-29 | 2016-05-04 | 上海建工二建集团有限公司 | Air exhausting and returning and dehumidification system of basement in top-down construction process |
-
2016
- 2016-01-29 CN CN201620099630.3U patent/CN205372903U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546706A (en) * | 2016-01-29 | 2016-05-04 | 上海建工二建集团有限公司 | Air exhausting and returning and dehumidification system of basement in top-down construction process |
| CN105546706B (en) * | 2016-01-29 | 2018-08-21 | 上海建工二建集团有限公司 | Basement flows back to wind and dehumidification system during reverse construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20180821 |
|
| AV01 | Patent right actively abandoned |