CN113356678A - Membrane structure in air film - Google Patents
Membrane structure in air film Download PDFInfo
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- CN113356678A CN113356678A CN202110590807.5A CN202110590807A CN113356678A CN 113356678 A CN113356678 A CN 113356678A CN 202110590807 A CN202110590807 A CN 202110590807A CN 113356678 A CN113356678 A CN 113356678A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
- E04H15/22—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure supported by air pressure inside the tent
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/64—Tent or canopy cover fastenings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
- E04H2015/206—Details of inflation devices, e.g. valves, connections to fluid pressure source
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention belongs to the technical field of air film buildings, and particularly relates to an air film-in-film structure which comprises an outer film and an inner film, wherein the outer film and the inner film are respectively arranged on an outer ring foundation and an inner ring foundation through a first fixing mechanism and a second fixing mechanism, the top surface of the outer ring foundation is provided with a water storage weir, the outer ring foundation and the inner ring foundation are arranged on the outer side of a base in a surrounding manner, independent outer film cavities and inner film cavities are formed between the outer film, the inner film and the base, the outer film cavities and the inner film cavities are respectively connected with an air inlet pipeline through an outer film cavity air inlet pipe and an inner film cavity air inlet pipe, and are connected with an air return pipe through an outer film cavity air return pipe and an inner film cavity air return pipe, VAVA variable air volume valves are arranged at the bottom ends of the outer film cavity air return pipe and the inner film cavity air return pipe, the pressure of the inner film cavity is higher than the pressure of the outer film cavity by adjusting the air return amount of the two VAVA variable air volume valves, so as to ensure that the inner film is flat and open, and further improve the attractiveness and the projection effect inside the device, the position of the dew point is found out quickly by presetting the strip-shaped edge blown on the film and the bubbles blown in the water storage weir.
Description
Technical Field
The invention belongs to the technical field of air film buildings, and particularly relates to an air film-in-film structure.
Background
The air film building refers to a building structure system which uses a special building film material as a shell and is provided with a set of intelligent electromechanical equipment to provide positive pressure of air in the air film building so as to support a building main body. The air film structure is usually 250Pa inside and outside air pressure difference, about 0.0025 atmospheric pressure, and in the safety range, the larger the air pressure of the air film inner space is, the wind load that can be resisted, and the higher the snow load capacity is, so that the possibility that the air film building is deformed is smaller, and the safety is higher.
Disclosure of Invention
The existing air film structure is formed by adding heat preservation cotton in a double-layer film, air pressure between an inner film and an outer film is communicated, the inner film naturally sags, wrinkles are uneven, the appearance is poor, and the visual effect can be seriously influenced by internal projection; in addition, the bottom edge of the air film is worn after long-term use of the air film or leakage which is not easy to be perceived is easy to occur after construction, so that the use cost of the air film building is increased. The invention provides a gas film-in-film structure, which ensures that the pressure of an inner film cavity is higher than the pressure of an outer film cavity by adjusting the air return quantity of two VAVA variable air quantity valves, thereby ensuring that the inner film is smoothly opened, further improving the attractiveness and the projection effect of the device, and quickly finding out the position of a leakage point by presetting strip-shaped edges blown on the film and bubbles blown in a water storage weir.
The invention provides the following technical scheme: the utility model provides a membrane structure in gas membrane, includes adventitia and inner membrance, the bottom side of adventitia passes through a fixed establishment fixed mounting on outer lane basis, two fixed mounting on inner circle basis are passed through to the bottom side of inner membrance, the fixed platform of patrolling that is equipped with in the outside on outer lane basis, the fixed retaining weir that is equipped with in top on outer lane basis between patrolling platform and the adventitia, the trachea has been installed to inner circle basis upper level through, tracheal one end fixedly connected with differential pressure switch and differential pressure table, outer lane basis and inner circle basis are fixed mounting respectively on the top of outer wall body and interior wall body, fixedly connected with connecting plate between the adjacent side on outer lane basis and inner circle basis, set up the skylight of adaptation installation skylight service panel on the connecting plate, outer lane basis and inner circle basis encircle the outside that sets up at the base, between adventitia and the inner membrance, the outer lane, Be formed with mutually independent adventitia chamber and intima chamber between intima and the base, adventitia chamber, intima chamber respectively through adventitia chamber air-supply line and intima chamber air-supply line through-connection admission line's inside, through adventitia chamber return air pipe and the inside of intima chamber return air pipe through-connection return air pipe, the air outlet of the one end fixed connection fan of admission line, the one end of the bottom fixed connection VAVA variable air volume valve of adventitia chamber return air pipe, intima chamber return air pipe, the one end of return air pipe is passed through support fixed mounting and is had the canopy, the grid plate is installed to the upside adaptation of adventitia chamber air-supply line, intima chamber air-supply line, adventitia chamber return air pipe, intima chamber return air pipe.
The vertical distance between the outer ring foundation and the adjacent side surface of the inner ring foundation is 1-1.5 m, and the height difference between the top heights of the inner film and the outer film is not less than 2 m; the split type fixed outer membrane and the inner membrane can effectively separate the outer membrane cavity from the inner membrane cavity.
The skylight is composed of two square through grooves which are vertically communicated and have different lengths and widths, the skylight maintenance plate is supported on the inner bottom surface of the skylight, a sealing ring is fixedly bonded on the inner bottom surface of the skylight, air brakes are formed among the outer wall body, the inner wall body and the skylight, and interlocking doors are installed on the outer wall body and the inner wall body; managers can push the skylight access panel upwards to enter the outer membrane cavity for overhauling and checking, and the sealing ring can improve the sealing property between the skylight access panel and the skylight.
The VAVA variable air volume air valve comprises an air lock, an air inlet pipe, an air outlet pipe, an air inlet pipeline, an outer membrane cavity and a VAVA variable air volume valve, wherein an isolation chamber I and an isolation chamber II are arranged in the air lock by taking the axis of an outer ring foundation as a symmetric center, the number of the VAVA variable air volume valves is two, the two VAVA variable air volume valves are respectively arranged at the lower sides of an outer membrane cavity return air pipe and an inner membrane cavity return air pipe, the outer membrane cavity return air pipe vertically penetrates through the isolation chamber I and is communicated with the air inlet of the VAVA variable air volume valve and an outer membrane cavity, the outer membrane cavity air inlet pipe vertically penetrates through the isolation chamber II and is communicated with the air inlet pipeline and the outer membrane cavity, and the VAVA variable air volume valve is electrically connected with a fan through a relay; the return air volume of the two VAVA variable air volume valves is controlled to be different, and the fans are used for supplying air to the outer membrane cavity and the inner membrane cavity for pressurization, so that the inner pressure of the inner membrane cavity is higher than the inner pressure of the outer membrane cavity by 50pa, the inner membrane can be ensured to be in an open and smooth state while the whole building is supported, the attractiveness of the interior of the building is improved, and the projection effect of the inner wall of the inner membrane is ensured.
The number of the air pipes is two, the air inlets of the differential pressure switch and the differential pressure gauge are respectively connected with one end of one air pipe, and the differential pressure switch is electrically connected with the VAVA variable air volume valve; the differential pressure switch can play a role in monitoring and feeding back the pressure difference between the outer membrane cavity and the inner membrane cavity, so that the relay can accurately control and adjust the air return quantity of the VAVA variable air quantity valve.
The lower ends of the anchor rods in the first fixing mechanism and the second fixing mechanism are respectively anchored on an outer ring foundation and an inner ring foundation, a sealing gasket is sleeved on the outer side of the anchor rods, the upper end surface and the lower end surface of the sealing gasket in the first fixing mechanism are respectively attached to the bottom surface of an outer membrane and the top surface of the outer ring foundation, the upper end surface and the lower end surface of the sealing gasket in the second fixing mechanism are respectively attached to the bottom surface of an inner membrane and the top surface of the inner ring foundation, a pressing plate is slidably sleeved on the anchor rods on the upper side of the outer membrane/inner membrane, the anchor rods on the upper side of the pressing plate are in threaded connection with anchor rod nuts, the pressing plate is in an L-shaped structure, and a fillet structure is arranged on one side of the pressing plate facing the outer membrane/inner membrane; the clamp plate can effectively press and fix the outer membrane and the inner membrane to ensure the sealing performance of the outer membrane cavity and the inner membrane cavity, and meanwhile, the fillet structure of the clamp plate can reduce the risk of damage of the outer membrane and the inner membrane.
A preset film is clamped between an anchor rod nut and a pressing plate in the second fixing mechanism, the preset film is a polyethylene film with an annular structure, the axis of the preset film is collinear with the axis of the outer ring foundation and the axis of the inner ring foundation, and the outer edge of the preset film is naturally spread downwards along the outer side surface of the inner ring foundation and is 5-10 cm lower than the top surface of the inner ring foundation; when the leakage of the inner film cavity is caused by the clamping force, position and sealing performance of the fixing mechanism II, the preset film can be blown up by positive pressure gas of the inner film cavity relative to the outer film cavity in the leakage process, and management personnel can conveniently find out the position of the leakage point quickly.
The outer side of the preset film is cut into a plurality of strip-shaped edges in a circumferential equal sequence, and the length of each strip-shaped edge is 10-15 cm; compared with the preset film with the integral structure, the strip-shaped edge formed by dividing the outer edge of the preset film can be independently blown by small airflow, so that a manager can conveniently and quickly find out the position of a leakage point.
The top end of the water storage weir is 3-10 cm higher than the top surface of the outer ring foundation, the water storage weir is of an annular structure, and the axis of the water storage weir is collinear with the axis of the outer ring foundation; but accumulate the water body between retaining weir and the adventitia, when the outer membrana chamber causes because clamping force, position, the leakproofness of fixed establishment one reveal, the outer gas that leaks of adventitia chamber can blow up in the water of accumulating between retaining weir and adventitia and form the macroscopic bubble, makes things convenient for managers to find out fast and reveals the dew point position.
The invention has the beneficial effects that: the outer membrane cavity and the inner membrane cavity can be effectively separated by the split type fixed outer membrane and the split type fixed inner membrane; a manager can push the skylight maintenance plate upwards to enter the outer film cavity for maintenance and checking, and the sealing ring can improve the sealing property between the skylight maintenance plate and the skylight; the difference of return air volume of the two VAVA variable air volume valves is controlled, and the fans are used for supplying air to the outer membrane cavity and the inner membrane cavity for pressurization, so that the inner pressure of the inner membrane cavity is higher than the inner pressure of the outer membrane cavity by 50pa, the inner membrane can be ensured to be in an open and flat state while the whole building is supported, the attractiveness of the interior of the device is improved, and the projection effect of the inner wall of the inner membrane is ensured; the differential pressure switch can play a role in monitoring and feeding back the pressure difference between the outer membrane cavity and the inner membrane cavity, so that the relay can accurately control and adjust the air return quantity of the VAVA variable air quantity valve; the pressing plate can effectively press and fix the outer membrane and the inner membrane to ensure the sealing performance of the outer membrane cavity and the inner membrane cavity, and meanwhile, the fillet structure of the pressing plate can reduce the risk of damage of the outer membrane and the inner membrane; when the inner film cavity leaks due to the clamping force, position and sealing performance of the fixing mechanism II, the positive pressure gas of the inner film cavity relative to the outer film cavity can blow up the preset film in the process of leakage, so that managers can find out the position of a leakage point conveniently and quickly; compared with the preset film with an integral structure, the strip-shaped edge formed by cutting the outer edge of the preset film can be independently blown by small airflow, so that a manager can conveniently and quickly find out the position of a leakage point; but accumulate the water body between retaining weir and the adventitia, when the outer membrana chamber causes because clamping force, position, the leakproofness of fixed establishment one reveal, the outer gas that leaks of adventitia chamber can blow up in the water of accumulating between retaining weir and adventitia and form the macroscopic bubble, makes things convenient for managers to find out fast and reveals the dew point position.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is an enlarged view of A of the present invention;
FIG. 4 is an enlarged view of B of the present invention;
FIG. 5 is an enlarged view of C of the present invention;
FIG. 6 is a schematic view of the connection structure of the inner ring base and the inner film according to the present invention;
FIG. 7 is a side cross-sectional view of a pre-positioned film of the present invention;
in the figure: 1. an outer ring foundation; 101. an outer membrane cavity; 2. an inner ring foundation; 201. an inner membrane cavity; 3. a first fixing mechanism; 301. an anchor rod; 302. pressing a plate; 303. an anchor bolt nut; 304. a gasket; 4. a second fixing mechanism; 401. presetting a film; 4012. a strip-shaped edge; 5. a skylight access panel; 6. a seal ring; 7. an outer membrane cavity air inlet pipe; 8. an inner membrane cavity air inlet pipe; 9. a grid plate; 10. an air intake duct; 11. a fan; 12. an outer membrane; 13. an inner membrane; 14. a connecting plate; 141. a skylight; 15. a base; 16. an outer membrane cavity return air duct; 17. an inner membrane cavity return air duct; 18. VAVA variable air volume valve; 19. a return air duct; 20. a water storage weir; 21. a patrol platform; 22. an outer wall body; 23. an inner wall; 24. an air lock; 25. a first isolation chamber; 26. a second isolation chamber; 27. a support; 28. a rain shed; 29. an air tube; 30. a differential pressure switch; 31. and a pressure difference meter.
Detailed Description
Referring to fig. 1-7, the present invention provides the following technical solutions: the utility model provides a membrane structure in gas membrane, includes adventitia (12) and inner membrance (13), the bottom side of adventitia (12) is through fixed establishment (3) fixed mounting on outer lane basis (1), the bottom side of inner membrance (13) is through fixed establishment two (4) fixed mounting on inner circle basis (2), the outside of outer lane basis (1) is fixed and is equipped with patrolling platform (21), the fixed retaining weir (20) that is equipped with in top of outer lane basis (1) between patrolling platform (21) and adventitia (12), trachea (29) are installed to inner circle basis (2) upper level through, the one end fixedly connected with differential pressure switch (30) and differential pressure table (31) of trachea (29), outer lane basis (1) and inner circle basis (2) are fixed mounting respectively on the top of outer wall body (22) and inner wall body (23), fixedly connected with connecting plate (14) between the adjacent side of outer lane basis (1) and inner circle basis (2), the skylight (141) of the adaptive installation skylight maintenance plate (5) is arranged on the connecting plate (14), the outer ring foundation (1) and the inner ring foundation (2) are arranged on the outer side of the base (15) in a surrounding manner, an outer membrane cavity (101) and an inner membrane cavity (201) which are mutually independent are formed between the outer membrane (12) and the inner membrane (13) and between the inner membrane (13) and the base (15), the outer membrane cavity (101) and the inner membrane cavity (201) are respectively communicated with the inside of the air inlet pipeline (10) through an outer membrane cavity air inlet pipe (7) and an inner membrane cavity air inlet pipe (8), and are communicated with the inside of the return air pipe (19) through an outer membrane cavity return air pipe (16) and an inner membrane cavity return air pipe (17), one end of the outer membrane cavity return air pipe (16) and the bottom end of the inner membrane cavity return air pipe (17) are fixedly connected with one end of the VAVA air volume changing valve (18), one end of the return air pipe (19) is fixedly provided with a rainwater shed (28) through a support (27), and grid plates (9) are arranged on the upper sides of the outer membrane cavity air inlet pipe (7), the inner membrane cavity air inlet pipe (8), the outer membrane cavity return air pipe (16) and the inner membrane cavity return air pipe (17) in an adaptive mode.
The vertical distance between the adjacent side surfaces of the outer ring foundation (1) and the inner ring foundation (2) is 1-1.5 m, and the height difference between the top heights of the inner film (13) and the outer film (12) is not less than 2 m; the outer membrane cavity (101) and the inner membrane cavity (201) can be effectively separated by the split type fixed outer membrane (12) and the inner membrane (13).
The skylight (141) is composed of two square through grooves which are through from top to bottom and have different lengths and widths, the skylight maintenance plate (5) is supported on the inner bottom surface of the skylight (141), a sealing ring (6) is fixedly bonded on the inner bottom surface of the skylight (141), air brakes (24) are formed among the outer wall body (22), the inner wall body (23) and the skylight (14), and interlocking doors are installed on the outer wall body (22) and the inner wall body (23); managers can push the skylight maintenance plate (5) upwards to enter the outer film cavity (101) for maintenance and checking, and the sealing ring (6) can increase the sealing performance between the skylight maintenance plate (5) and the skylight (141).
The air lock (24) is internally provided with a first isolation chamber (25) and a second isolation chamber (26) by taking the axis of the outer ring foundation (1) as a symmetric center, the number of the VAVA variable air volume valves (18) is two, the two VAVA variable air volume valves are respectively installed on the lower sides of the outer membrane cavity return air pipe (16) and the inner membrane cavity return air pipe (17), the outer membrane cavity return air pipe (16) vertically penetrates through the first isolation chamber (25) to be communicated with an air inlet of the VAVA variable air volume valve (18) and the outer membrane cavity (101), the outer membrane cavity air inlet pipe (7) vertically penetrates through the second isolation chamber (26) to be communicated with the air inlet pipeline (10) and the outer membrane cavity (101), and the VAVA variable air volume valve (18) is electrically connected with the fan (11) through a relay; the return air volume of the two VAVA variable air volume valves (18) is controlled to be different, and the fan (11) is used for supplying air into the outer membrane cavity (101) and the inner membrane cavity (201) for pressurization, so that the inner pressure of the inner membrane cavity (201) is higher than the inner pressure of the outer membrane cavity (101) by 50pa, the whole building is supported, meanwhile, the inner membrane (13) can be in an open and smooth state, the attractiveness of the inside of the device is improved, and the projection effect of the inner wall of the inner membrane (13) is guaranteed.
The number of the air pipes (29) is two, air inlets of the differential pressure switch (30) and the differential pressure gauge (31) are respectively connected with one end of one air pipe (29), and the differential pressure switch (30) is electrically connected with the VAVA variable air volume valve (18); the differential pressure switch (30) can play a role in monitoring and feeding back the pressure difference between the outer membrane cavity (101) and the inner membrane cavity (201), so that the relay can accurately control and regulate the return air quantity of the VAVA variable air quantity valve (18).
The utility model discloses a building anchor plate, including anchor rod (301), clamp plate (302), anchor rod nut (303), sealed pad (304) are all included to fixed establishment one (3) and fixed establishment two (4), the lower extreme of anchor rod (301) in fixed establishment one (3) and fixed establishment two (4) anchors respectively on outer lane basis (1) and inner circle basis (2), the outside cover of anchor rod (301) is equipped with sealed pad (304), the lower extreme terminal surface of sealed pad (304) in fixed establishment one (3) laminates respectively and connects the bottom surface of adventitia (12) and the top surface of outer lane basis (1), the lower extreme surface of sealed pad (304) in fixed establishment two (4) laminates respectively and connects the bottom surface of intima (13) and the top surface of inner circle basis (2), the cover of adventitia (12)/intima (13) upside is equipped with slide clamp plate (302) on anchor rod (301), threaded connection has anchor rod nut (303) on the anchor rod (301) of clamp plate (302) upside, the pressing plate (302) is of an L-shaped structure, and a round corner structure is arranged on one surface, facing the outer film (12)/the inner film (13), of the pressing plate (302); the pressing plate (302) can effectively press and fix the outer membrane (12) and the inner membrane (13) to ensure the sealing performance of the outer membrane cavity (101) and the inner membrane cavity (201), and meanwhile, the fillet structure of the pressing plate (302) can reduce the risk of damage to the outer membrane (12) and the inner membrane (13).
A preset film (401) is clamped between an anchor rod nut (303) and a pressure plate (302) in the second fixing mechanism (4), the preset film (401) is a polyethylene film with an annular structure, the axis of the preset film (401) is collinear with the axis of the outer ring foundation (1) and the axis of the inner ring foundation (2), and the outer edge of the preset film (401) is naturally spread downwards along the outer side surface of the inner ring foundation (2) and is 5-10 cm lower than the top surface of the inner ring foundation (2); when the inner film cavity (201) leaks due to clamping force, position and sealing performance of the second fixing mechanism (4), the inner film cavity (201) can blow up the preset film (401) relative to positive pressure gas of the outer film cavity (101) in the leakage process, and management personnel can find out the position of the leakage point quickly.
The outer side of the preset film (401) is cut into a plurality of strip-shaped edges (4012) in a circumferential equal sequence, and the length of each strip-shaped edge (4012) is 10-15 cm; compared with the preset film (401) with an integral structure, the strip-shaped edge (4012) formed after the outer edge of the preset film (401) is divided can be independently blown by small airflow, and a manager can conveniently and quickly find out the position of a leakage point.
The top end of the water storage weir (20) is 3-10 cm higher than the top surface of the outer ring foundation (1), the water storage weir (20) is of an annular structure, and the axis of the water storage weir is collinear with the axis of the outer ring foundation (1); the water storage weir (20) and the outer membrane (12) can accumulate water, and when the outer membrane cavity (101) leaks due to clamping force, position and tightness of the fixing mechanism I (3), gas leaking out of the outer membrane cavity (101) can be blown out of water accumulated between the water storage weir (20) and the outer membrane (12) to form macroscopic bubbles, so that a manager can conveniently find out the position of a leakage point quickly.
The working principle and the using process of the invention are as follows: when the device is used, the fan (11) in operation sucks the outside air and sends the air into the air inlet pipeline (10), and are respectively sent into the outer film cavity (101) and the inner film cavity (201) through an outer film cavity air inlet pipe (7) and an inner film cavity air inlet pipe (8), the pressure difference switch (30) obtains the pressure difference between the outer membrane cavity (101) and the inner membrane cavity (201) through the air pipe (29) and feeds back the pressure difference to the relay, thereby controlling and adjusting the air return quantity of two VAVA variable air quantity valves (18) respectively arranged at the lower sides of the outer membrane cavity air return pipe (16) and the inner membrane cavity air return pipe (17) to ensure that the air pressure of the outer membrane cavity (101) is larger than the external air pressure, while the internal pressure of the inner film cavity (201) is higher than the internal pressure of the outer film cavity (101) by 50pa, therefore, the whole building is supported, meanwhile, the inner membrane (13) can be ensured to be in a flat and open state, the attractiveness of the interior of the device is improved, and the projection effect of the inner wall of the inner membrane (13) is ensured; the air in the outer membrane cavity (101) and the air in the inner membrane cavity (201) respectively enter the air return pipe (19) through the outer membrane cavity air return pipe (16) and the inner membrane cavity air return pipe (17) through the VAVA variable air volume valve (18) and are discharged to the outside, and the rainwater shed (28) can prevent rainwater from entering the air return pipe (19) in rainy days; when the inner membrane cavity (201) leaks due to clamping force, position and sealing performance of the fixing mechanism II (4), managers can enter the air lock (24) to push the skylight maintenance plate (5) upwards and enter the outer membrane cavity (101) with the aid of a ladder, and walk on the connecting plate (14) to maintain and check, and because the inner membrane cavity (201) is in positive pressure relative to the outer membrane cavity (101), gas in the inner membrane cavity (201) can move into the outer membrane cavity (101), a strip-shaped edge (4012) on the outer edge of the preset membrane (401) is blown up in the leaking process, so that the managers can find out the leaking point position quickly; the water storage weir (20) and the outer membrane (12) can accumulate water, when the outer membrane cavity (101) leaks due to clamping force, position and tightness of the fixing mechanism I (3), gas leaked outside the outer membrane cavity (101) can be blown into water accumulated between the water storage weir (20) and the outer membrane (12) to form macroscopic bubbles, managers can walk on the patrol platform (21) to check, and managers can conveniently find out the position of the leakage point.
Claims (9)
1. A membrane structure in gas membrane, its characterized in that: the outer ring foundation and the inner ring foundation are fixedly arranged at the top ends of the outer ring foundation and the outer ring foundation respectively, a connecting plate is fixedly connected between the outer ring foundation and the inner ring foundation, a skylight matched with the skylight maintenance plate is arranged on the connecting plate, the outer ring foundation and the inner ring foundation are arranged on the outer side of the base in a surrounding manner, and mutually independent outer film cavities and inner film cavities are formed between the outer film and the inner film and between the inner film and the base, outer membrance chamber, inner membrance chamber are respectively through adventitial chamber air-supply line and inner membrance chamber air-supply line through connection admission line's inside, through adventitial chamber return air duct and inner membrance chamber return air duct through connection return air duct's inside, the air outlet of the one end fixed connection fan of admission line, the one end of the bottom fixed connection VAVA variable air volume valve of adventitial chamber return air duct, inner membrance chamber return air duct, the one end of return air duct is passed through support fixed mounting and is had the rainwater canopy, the grid plate is installed to the upside adaptation of adventitial chamber air-supply line, inner membrance chamber air-supply line, adventitial chamber return air duct, inner membrance chamber return air duct.
2. The membrane-in-membrane structure of claim 1, wherein: the vertical distance between the outer ring foundation and the adjacent side surface of the inner ring foundation is 1-1.5 m, and the height difference between the top heights of the inner film and the outer film is not less than 2 m.
3. The membrane-in-membrane structure of claim 1, wherein: the skylight is composed of two square through grooves which are vertically communicated and have different lengths and widths, the skylight maintenance plate is supported on the inner bottom surface of the skylight, a sealing ring is fixedly bonded on the inner bottom surface of the skylight, air brakes are formed among the outer wall body, the inner wall body and the skylight, and interlocking doors are installed on the outer wall body and the inner wall body.
4. A membrane-in-membrane structure according to claim 3, wherein: the inside of airlock is provided with isolation room one and isolation room two for the center of symmetry with the axis of outer lane basis, the quantity of VAVA variable air volume valve is two, installs respectively at the downside of outer membrane chamber return air duct and inner membrance chamber return air duct, outer membrane chamber return air duct link up isolation room one perpendicularly and intake port and the adventitial cavity of UNICOM VAVA variable air volume valve, outer membrane chamber air-supply line link up isolation room two perpendicularly and UNICOM admission line and adventitial cavity, VAVA variable air volume valve passes through relay electric connection fan.
5. The membrane-in-membrane structure of claim 1, wherein: the number of the air pipes is two, the air inlets of the pressure difference switch and the pressure difference meter are respectively connected with one end of one air pipe, and the pressure difference switch is electrically connected with the VAVA variable air volume valve.
6. The membrane-in-membrane structure of claim 1, wherein: the utility model discloses a fixing mechanism, including the anchor rod, clamp plate, stock nut, sealed pad, the lower extreme of the anchor rod in the first and the second fixing mechanism of fixing mechanism anchors respectively on outer lane basis and inner circle basis, the outside cover of anchor rod is equipped with sealed the pad, the sealed upper and lower terminal surface of filling up in the first fixing mechanism laminates the bottom surface of connecting adventitia and the top surface on outer lane basis respectively, the sealed upper and lower terminal surface of filling up in the second fixing mechanism laminates the top surface on connecting intimal bottom surface and inner circle basis respectively, the slip cover is equipped with the clamp plate on the anchor rod of adventitia/intimal upside, threaded connection has the stock nut on the anchor rod of clamp plate upside, the clamp plate is equipped with fillet structure for L type structure and clamp plate orientation adventitia/intimal one side.
7. The membrane-in-membrane structure of claim 1, wherein: and a preset film is clamped between an anchor rod nut and a pressing plate in the second fixing mechanism, the preset film is a polyethylene film with an annular structure, the axis of the preset film is collinear with the axis of the outer ring foundation and the axis of the inner ring foundation, and the outer edge of the preset film is naturally spread downwards along the outer side surface of the inner ring foundation and is 5-10 cm lower than the top surface of the inner ring foundation.
8. The film-in-film structure of claim 7, wherein: the outer side of the preset film is cut into a plurality of strip-shaped edges in a circumferential equal sequence, and the length of each strip-shaped edge is 10-15 cm.
9. The membrane-in-membrane structure of claim 1, wherein: the top of water storage weir is higher than the top surface 3-10 cm on outer lane basis, water storage weir is the axis collineation of annular structure and axis and outer lane basis.
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Application publication date: 20210907 |