CN113465078B - A adaptable overhead traveling crane vortex ventilation unit for tall and big space - Google Patents
A adaptable overhead traveling crane vortex ventilation unit for tall and big space Download PDFInfo
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- CN113465078B CN113465078B CN202110795583.1A CN202110795583A CN113465078B CN 113465078 B CN113465078 B CN 113465078B CN 202110795583 A CN202110795583 A CN 202110795583A CN 113465078 B CN113465078 B CN 113465078B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 31
- 230000007423 decrease Effects 0.000 claims 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 16
- 231100000719 pollutant Toxicity 0.000 abstract description 16
- 238000004088 simulation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention provides an adaptable crown block vortex ventilation device for a high and large space, wherein a wind exhaust area, a crown block running area and a pollution source area are arranged between a ceiling and the ground; an exhaust mechanism is arranged on the ceiling in the exhaust area, and a plurality of upper lifting air supply pipes which are uniformly distributed are arranged on the surrounding ceiling; a plurality of lower liftable blast pipes are arranged on the ground around the pollution source area, and the upper liftable blast pipes and the lower liftable blast pipes are in one-to-one correspondence and are coaxially arranged; the space between the upper lifting air supply pipe and the lower lifting air supply pipe is an overhead travelling crane operation area; the upper lifting air supply pipe and the lower lifting air supply pipe provide air flow with angular momentum, and are matched with the air exhaust air flow generated by the air exhaust mechanism, so that strong vortex can be generated to realize efficient collection of pollutants; the upper telescopic air pipe and the lower telescopic air pipe are contracted to enable the crown block to smoothly pass through, so that efficient collection of pollutants is ensured, and meanwhile, the vortex ventilation device has good adaptability to the crown block.
Description
Technical Field
The invention belongs to the field of air ventilation, relates to an air vortex ventilation device, and in particular relates to an adaptable crown block vortex ventilation device for a high and large space.
Background
With the rapid development of economy and science, the environment of industrial plants is different according to different production process requirements, and high-rise space plants are ubiquitous. In the production process, a large amount of air pollutants can be generated in a factory building in industries such as metallurgy, welding, mineral aggregate processing and the like, and in order to meet the process requirements and simultaneously build indoor air quality meeting the standards, the pollutants need to be trapped efficiently, and then the pollutants are intensively treated to reach the standards and then discharged into the atmosphere.
Vortex ventilation has good adaptability in pollutant control in high space due to its very small amount of entrainment and stable airflow state, wherein one of the requirements for vortex generation is that the airflow with angular momentum is provided by the air supply ports along the vertical direction. In a factory building with a large space, an overhead crane is usually arranged for conveniently carrying materials, and the overhead crane is required to have no obstacle in the running space in the running process, so that the overhead crane is contradictory to an air supply system for providing angular momentum in a vortex ventilating device.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the vortex ventilation device for the high-volume adaptable crown block, which solves the technical problem that the vortex ventilation device in the prior art can not be well adapted to the crown block on the premise of efficiently capturing pollutants.
The invention is realized by adopting the following technical scheme:
The vortex ventilating device for the high and large space is arranged on a ceiling and the ground, and a wind exhaust area, a crown block running area and a pollution source area are arranged between the ceiling and the ground vertically from top to bottom;
An exhaust mechanism is arranged on the ceiling in the exhaust area, and a plurality of upper lifting air supply pipes which are uniformly distributed are arranged on the ceiling around the exhaust area;
A pollution source is arranged in the pollution source area, a plurality of lower liftable air supply pipes are arranged on the ground around the pollution source area, and the upper liftable air supply pipes and the lower liftable air supply pipes are in one-to-one correspondence and are vertically and coaxially arranged;
The space between the upper lifting air supply pipe and the lower lifting air supply pipe is an overhead travelling crane operation area;
the upper lifting air supply pipe comprises an upper telescopic air supply pipe, a plurality of upper air supply openings are vertically formed in one longitudinal side of the upper telescopic air supply pipe, and the upper air supply openings are positioned below the air exhaust mechanism;
An upper hydraulic lifting rod is arranged on the other longitudinal side of the upper telescopic air pipe; the top end of the upper hydraulic lifting rod is fixed on the ceiling, and the bottom end of the upper hydraulic lifting rod is fixed with the bottom end of the upper telescopic air pipe; the top end of the upper telescopic air pipe is fixedly connected with the bottom end of an upper folding connecting rod, and the top end of the upper folding connecting rod is fixed on a ceiling;
The upper telescopic air pipe can vertically lift under the drive of the upper hydraulic lifting rod, and meanwhile, the upper telescopic air pipe and the upper folding connecting rod can be telescopic and folded;
The lower lifting air supply pipe comprises a lower telescopic air supply pipe, and a plurality of lower air supply openings are vertically formed in one longitudinal side of the lower telescopic air supply pipe;
A lower hydraulic lifting rod is arranged on the other longitudinal side of the lower telescopic air pipe; the bottom end of the lower hydraulic lifting rod is fixed on the ground, and the top end of the lower hydraulic lifting rod is fixed with the top end of the lower telescopic air pipe;
the lower telescopic air pipe can vertically stretch under the drive of the lower hydraulic lifting rod.
The invention also has the following technical characteristics:
The exhaust mechanism comprises an exhaust pipe arranged on a ceiling, the bottom end of the exhaust pipe is connected with an exhaust hood, and the bottom of the exhaust hood is an exhaust outlet; an exhaust fan is arranged in the exhaust hood.
The bottom end of the upper telescopic air pipe is provided with an upper axial flow blower; the top end of the lower telescopic air pipe is provided with a lower axial flow blower.
The upper telescopic air pipe is composed of a plurality of upper single-section air pipes, and the pipe diameter of each upper single-section air pipe is reduced section by section from the top end to the bottom end of the upper telescopic air pipe.
The lower telescopic air pipe is composed of a plurality of lower single-section air pipes, and the pipe diameter of each lower single-section air pipe is reduced section by section from the bottom end to the top end of each lower telescopic air pipe.
The upper air supply opening is provided with an upper air deflector, and the lower air supply opening is provided with a lower air deflector.
The upper air deflector and the lower air deflector are arranged at the upper air supply opening and the lower air supply opening in an embedded mode.
The top ends of the upper hydraulic lifting rod and the upper folding connecting rod are fixed on an upper fixing plate, and the upper fixing plate is fixed on a ceiling.
The bottom end of the lower hydraulic lifting rod is fixed on the lower fixing plate, the lower fixing plate is integrally fixed at the bottom end of the lower telescopic air pipe, and the lower fixing plate is fixed on the ground.
Compared with the prior art, the invention has the following technical effects:
The invention discloses an adaptable crown block vortex ventilation device for a high and large space, wherein an upper lifting blast pipe and a lower lifting blast pipe are respectively arranged above and below a crown block, and the upper lifting blast pipe and the lower lifting blast pipe are mutually matched with an exhaust mechanism to generate exhaust air flow by providing air flow with angular momentum, so that strong vortex can be generated to realize the efficient collection of pollutants; when the crane runs to the vortex ventilation device, the upper telescopic air pipe and the lower telescopic air pipe are contracted through the upper hydraulic lifting rod and the lower hydraulic lifting rod, so that the crane can smoothly pass through the telescopic air pipe, and the vortex ventilation device has good adaptability to the crane on the premise of guaranteeing efficient collection of pollutants.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an adaptable crown block scroll ventilation device for a tall space.
Fig. 2 is a schematic structural view of the upper liftable air supply pipe in an extended state.
Fig. 3 is a schematic structural view of the upper liftable air supply pipe in a contracted state.
Fig. 4 is a schematic structural view of the lower liftable air supply pipe in an extended state.
Fig. 5 is a schematic structural view of the lower liftable air supply pipe in a contracted state.
Fig. 6 is a schematic structural view of the exhaust mechanism.
Fig. 7 is a graph of a pollutant flow chart after simulation of indoor pollutants using the adaptable crown block scroll ventilation apparatus for a large space in the embodiment.
Fig. 8 is a graph showing a graph of indoor pressure distribution after simulation test of indoor pollutants by the adaptable crown block scroll ventilation device for a high and large space in the embodiment.
The meaning of each reference numeral in the figures is: 1-exhaust mechanism, 2-up-down lifting blast pipe, 3-down lifting blast pipe, 4-ceiling, 5-ground, 6-pollution source, 7-exhaust area, 8-crown block running area and 9-pollution source area;
101-exhaust pipes, 102-exhaust hoods and 103-exhaust outlets;
201-upper telescopic air pipes, 202-upper air supply outlets, 203-upper hydraulic lifting rods, 204-upper folding connecting rods, 205-upper axial-flow blowers, 206-upper single-section air pipes, 207-upper air deflectors and 208-upper fixing plates;
301-lower telescopic air pipes, 302-lower air supply outlets, 303-lower hydraulic lifting rods, 304-lower axial flow blowers, 305-lower single-section air pipes, 306-lower air deflectors and 307-lower fixing plates.
The following examples illustrate the invention in further detail.
Detailed Description
All parts in the present invention are known in the art, unless otherwise specified.
The following specific embodiments of the present application are provided, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of the present application fall within the protection scope of the present application.
Examples:
The embodiment provides an adaptable crown block vortex ventilation device for a high and large space, which is arranged on a ceiling 4 and a ground 5 as shown in fig. 1 to 6, wherein an exhaust area 7, a crown block running area 8 and a pollution source area 9 are arranged between the ceiling 4 and the ground 5 vertically from top to bottom;
An exhaust mechanism 1 is arranged on a ceiling 4 in the exhaust area 7, and a plurality of upper lifting blast pipes 2 which are uniformly distributed are arranged on the ceiling 4 around the exhaust area 7;
A pollution source 6 is arranged in the pollution source area 9, a plurality of lower liftable blast pipes 3 are arranged on the ground 5 around the pollution source area 9, and the upper liftable blast pipes 2 and the lower liftable blast pipes 3 are in one-to-one correspondence and are vertically and coaxially arranged;
the space between the upper lifting air supply pipe 2 and the lower lifting air supply pipe 3 is a crown block running area 8;
the upper liftable air supply pipe 2 comprises an upper telescopic air supply pipe 201, a plurality of upper air supply openings 202 are vertically formed in one longitudinal side of the upper telescopic air supply pipe 201, and the upper air supply openings 202 are positioned below the air exhaust mechanism 1;
An upper hydraulic lifting rod 203 is arranged on the other longitudinal side of the upper telescopic air pipe 201; the top end of the upper hydraulic lifting rod 203 is fixed on the ceiling 4, and the bottom end of the upper hydraulic lifting rod 203 is fixed with the bottom end of the upper telescopic air pipe 201; the top end of the upper telescopic air pipe 201 is fixedly connected with the bottom end of an upper folding connecting rod 204, and the top end of the upper folding connecting rod 204 is fixed on the ceiling 4;
The upper telescopic air pipe 201 can vertically lift under the drive of the upper hydraulic lifting rod 203, and meanwhile, the upper telescopic air pipe 201 and the upper folding connecting rod 204 can be telescopic and folded;
The lower liftable air supply pipe 3 comprises a lower telescopic air supply pipe 301, and a plurality of lower air supply openings 302 are vertically formed in one longitudinal side of the lower telescopic air supply pipe 301;
A lower hydraulic lifting rod 303 is arranged on the other longitudinal side of the lower telescopic air pipe 301; the bottom end of the lower hydraulic lifting rod 303 is fixed on the ground 5, and the top end of the lower hydraulic lifting rod 303 is fixed with the top end of the lower telescopic air pipe 301;
the lower telescopic air pipe 301 can vertically perform telescopic movement under the drive of the lower hydraulic lifting rod 303.
As a specific scheme of the embodiment, the exhaust mechanism 1 comprises an exhaust pipe 101, an exhaust hood 102 is integrally and fixedly arranged at the bottom end of the exhaust pipe 101, and an exhaust outlet 103 is arranged at the bottom end of the exhaust hood 102; an exhaust fan is arranged in the exhaust hood 102 and is arranged at the bottom end of the exhaust pipe 101; in this embodiment, the exhaust mechanism 1 is disposed directly above the pollution source 66, and is used for collecting exhaust air flow and collecting pollutants generated by the pollution source 66.
As a specific scheme of the embodiment, an upper axial flow blower 205 is arranged at the bottom end of the upper telescopic air pipe 201; a lower axial flow blower 304 is arranged at the top end of the lower telescopic air pipe 301; in the present embodiment, the air flows generated by the upper axial flow fan 205 and the lower axial flow fan 304 interact with the air flow generated by the exhaust mechanism 1 to generate a vortex.
As a specific scheme of the embodiment, the upper telescopic air duct 201 is composed of a plurality of upper single-section air ducts 206, and the pipe diameter of the upper single-section air ducts 206 is reduced section by section from the top end to the bottom end of the upper telescopic air duct 201; the lower telescopic air duct 301 is composed of a plurality of lower single-section air ducts 305, and the pipe diameters of the lower single-section air ducts 305 are reduced section by section from the bottom end to the top end of the lower telescopic air duct 301.
In this embodiment, the lengths of the upper single-section air pipe 206 and the lower single-section air pipe 305, on which the upper air supply port 202 and the lower air supply port 302 are not opened, are 600mm per section, and the lengths of the upper single-section air pipe 206 and the lower single-section air pipe 305, on which the upper air supply port 202 and the lower air supply port 302 are opened, are 700mm per section; the upper telescopic air duct 201 is composed of four upper single-section air ducts 206, and each air supply vertical pipe of the lower telescopic air duct 301 is composed of seven lower single-section air ducts 305.
As a specific scheme of the embodiment, an upper air deflector 207 is installed at the upper air supply port 202, and a lower air deflector 306 is installed at the lower air supply port 302; the upper air deflector 207 and the lower air deflector 306 are installed at the upper air supply port 202 and the lower air supply port 302 in an embedded manner; in this embodiment, the upper air deflector 207 and the lower air deflector 306 play a role in adjusting the air supply angle, and the upper telescopic air duct 201 and the lower telescopic air duct 301 can be conveniently contracted by being installed in an embedded manner.
As a specific scheme of the present embodiment, the top ends of the upper hydraulic lifting rod 203 and the upper folding connecting rod 204 are fixed on the upper fixing plate 208, and the upper fixing plate 208 is fixed on the ceiling 4; the bottom end of the lower hydraulic lifting rod 303 is fixed on the lower fixing plate 307, the lower fixing plate 307 is integrally fixed at the bottom end of the lower telescopic air pipe 301, and the lower fixing plate 307 is fixed on the ground 5; in this embodiment, the upper fixing plate 208 and the lower fixing plate 307 function to facilitate installation.
In embodiment 2, the upper hydraulic lifting rod 203, the lower hydraulic lifting rod 303 and the upper folding connecting rod 204 are all composed of a plurality of single-section lifting rods, and the length of each single-section lifting rod is 600mm; the upper hydraulic lifting rod 203 and the lower hydraulic lifting rod 303 are provided with power sources, and the upper folding connecting rod 204 is not provided with a power source;
In this embodiment, the upper telescopic air duct 201 and the lower telescopic air duct 301 are both rectangular cube structures, and the number of the upper telescopic air duct 201 and the lower telescopic air duct 301 is four; the upper air supply port 202 and the lower air supply port 302 are rectangular structures, the number of the upper air supply ports 202 is two, and the number of the lower air supply ports 302 is three.
The working process of the invention is as follows:
Firstly, when the crown block runs, a pollution source 6 is generated, and the exhaust mechanism 1, the upper liftable blast pipe 2 and the lower liftable blast pipe 3 are installed at proper positions according to the position of the pollution source 6; according to the actual ventilation requirement, the air supply directions of the upper lifting air supply pipe 2 and the lower lifting air supply pipe 3 are rotated and adjusted; according to the running height of the crown block, the upper hydraulic lifting rod 203 and the upper hydraulic lifting rod 203 are started, so that the upper lifting air supply pipe 2 and the lower lifting air supply pipe 3 are at proper heights, and collision with the crown block is avoided.
Secondly, after the exhaust mechanism 1, the upper liftable blast pipe 2 and the lower liftable blast pipe 3 are installed and adjusted, the exhaust fan, the upper axial flow fan 205 and the lower axial flow fan 304 of the exhaust mechanism 1 are started, the vortex ventilation device starts ventilation operation, at this time, the upper axial flow fan 205 and the lower axial flow fan 304 supply air together, two air flows sent out from the upper air supply port 202 and the lower air supply port 302 are converged together to generate an air flow with angular momentum, the air flow with angular momentum interacts with the vertical air flow generated by the exhaust mechanism 1, a strong vortex is generated right above the pollution source 6, the vortex has stability and low absorption rate, and pollutants generated by the pollution source 6 can be efficiently trapped and discharged by utilizing the vortex.
Third, when the crown block is moved to the upper and lower liftable blast pipes 2 and 3, the upper and lower hydraulic elevating rods 203 and 303 are started, so that the upper telescopic blast pipe 201, the lower telescopic blast pipe 301 and the upper folding connecting rod 204 are contracted, so that the crown block can smoothly pass through.
Fourth, when the scroll ventilation device does not perform ventilation operation, the lower telescopic air pipe 301 is folded to its minimum height under the driving of the lower hydraulic lifting rod 303, so that the occupied space is reduced, and the passage of personnel and the transportation of goods can be facilitated.
Simulation test:
Simulation tests were performed using the adaptable crown block scroll ventilation apparatus for high and large spaces described above, and the results are shown in fig. 7 and 8. In this embodiment, in the simulation test, the distance between the pollution source 6 and the air outlet 103 is 9 meters, the distances between the adjacent upper air supply openings 202 and the adjacent lower air supply openings 302 are 1.8 meters, and the geometric dimensions of the upper air supply openings 202 and the adjacent lower air supply openings 302 are 0.3x0.4 meter; the cross-sectional size of the air outlet 103 is 3×3 meters; according to different rising air flow speeds at different heights, the air supply speeds of the upper air supply port 202 and the lower air supply port 302 are sequentially increased from bottom to top, the air supply speeds are specifically 3 meters per second, 4 meters per second, 5 meters per second, 6 meters per second and 7 meters per second from bottom to top, and the air exhaust speed is 10 meters per second, so that the air supply air flow is ensured to be accurately supplied to the central vortex area and the vortex structure is not blown away.
As can be seen from fig. 7, the numerical simulation results set according to the environmental parameters of the general factory can generate a stable vortex structure, and has good control effect on pollutants; as can be seen from fig. 8, the pressure inside the scroll structure gradually increases from inside to outside, but the whole scroll structure is in a negative pressure state inside. The negative pressure state of the vortex structure effectively controls the pollutant and prevents the pollutant from diffusing into the environment.
Claims (9)
1. The adaptable crown block vortex ventilation device for the high and large space is arranged on a ceiling (4) and a ground (5), and is characterized in that an exhaust area (7), a crown block running area (8) and a pollution source area (9) are arranged between the ceiling (4) and the ground (5) vertically from top to bottom;
An air exhaust mechanism (1) is arranged on a ceiling (4) in the air exhaust area (7), and a plurality of upper lifting air supply pipes (2) which are uniformly distributed are arranged on the ceiling (4) around the air exhaust area (7);
A pollution source (6) is arranged in the pollution source area (9), a plurality of lower liftable blast pipes (3) are arranged on the ground (5) around the pollution source area (9), and the upper liftable blast pipes (2) and the lower liftable blast pipes (3) are in one-to-one correspondence and are vertically and coaxially arranged;
the space between the upper lifting air supply pipe (2) and the lower lifting air supply pipe (3) is an overhead travelling crane operation area (8);
the upper lifting air supply pipe (2) comprises an upper telescopic air supply pipe (201), a plurality of upper air supply openings (202) are vertically formed in one longitudinal side of the upper telescopic air supply pipe (201), and the upper air supply openings (202) are positioned below the air exhaust mechanism (1);
An upper hydraulic lifting rod (203) is arranged on the other longitudinal side of the upper telescopic air pipe (201); the top end of the upper hydraulic lifting rod (203) is fixed on the ceiling (4), and the bottom end of the upper hydraulic lifting rod (203) is fixed with the bottom end of the upper telescopic air pipe (201); the top end of the upper telescopic air pipe (201) is fixedly connected with the bottom end of an upper folding connecting rod (204), and the top end of the upper folding connecting rod (204) is fixed on the ceiling (4);
The upper telescopic air pipe (201) can vertically lift under the drive of the upper hydraulic lifting rod (203), and meanwhile, the upper telescopic air pipe (201) and the upper folding connecting rod (204) can be telescopic and folded;
The lower lifting air supply pipe (3) comprises a lower telescopic air supply pipe (301), and a plurality of lower air supply openings (302) are vertically formed in one longitudinal side of the lower telescopic air supply pipe (301);
A lower hydraulic lifting rod (303) is arranged on the other longitudinal side of the lower telescopic air pipe (301); the bottom end of the lower hydraulic lifting rod (303) is fixed on the ground (5), and the top end of the lower hydraulic lifting rod (303) is fixed with the top end of the lower telescopic air pipe (301);
the lower telescopic air pipe (301) can vertically stretch under the drive of the lower hydraulic lifting rod (303).
2. The vortex ventilating device for the high-rise space adaptable crown block as claimed in claim 1, wherein the ventilating mechanism (1) comprises an exhaust pipe (101) arranged on a ceiling (4), the bottom end of the exhaust pipe (101) is connected with an exhaust hood (102), and the bottom of the exhaust hood (102) is an exhaust outlet (103); an exhaust fan is arranged in the exhaust hood (102).
3. The adaptable crown block scroll ventilation device for high and large spaces according to claim 1, wherein the bottom end of said upper telescopic air duct (201) is provided with an upper axial flow blower (205); the top end of the lower telescopic air pipe (301) is provided with a lower axial flow blower (304).
4. The adaptable crown block scroll ventilation apparatus for high and large spaces as defined in claim 1, wherein said upper telescoping air duct (201) is comprised of a plurality of upper single-section air ducts (206), and the pipe diameter of said upper single-section air ducts (206) decreases section by section from top to bottom of said upper telescoping air duct (201).
5. The adaptable crown block scroll ventilation apparatus for high and large spaces as defined in claim 1, wherein said lower telescopic duct (301) is comprised of a plurality of lower single-section ducts (305), and the pipe diameter of said lower single-section ducts (305) decreases section by section from the bottom end to the top end of said lower telescopic duct (301).
6. The adaptable crown block scroll ventilation apparatus for high and large spaces as claimed in claim 1, wherein said upper air supply port (202) is provided with an upper air deflector (207), and said lower air supply port (302) is provided with a lower air deflector (306).
7. The adaptable crown block scroll ventilation apparatus for high spaces as defined in claim 6, wherein said upper and lower air deflectors (207, 306) are mounted in an embedded manner at said upper and lower air vents (202, 302).
8. The adaptable crown block scroll ventilation apparatus for high and large spaces as claimed in claim 1, wherein the upper hydraulic lifting rod (203) and the upper folding connecting rod (204) are fixed at the top ends thereof to an upper fixing plate (208), and the upper fixing plate (208) is fixed to the ceiling (4).
9. The adaptable crown block scroll ventilation device for high and large spaces as claimed in claim 1, wherein the bottom end of said lower hydraulic lifting rod (303) is fixed on a lower fixing plate (307), said lower fixing plate (307) is integrally fixed on the bottom end of a lower telescopic air duct (301), and said lower fixing plate (307) is fixed on the ground (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110795583.1A CN113465078B (en) | 2021-07-14 | 2021-07-14 | A adaptable overhead traveling crane vortex ventilation unit for tall and big space |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110795583.1A CN113465078B (en) | 2021-07-14 | 2021-07-14 | A adaptable overhead traveling crane vortex ventilation unit for tall and big space |
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| CN113465078A CN113465078A (en) | 2021-10-01 |
| CN113465078B true CN113465078B (en) | 2024-06-04 |
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| Title |
|---|
| 热风供暖送风方式对高大空间室内污染物扩散的影响;叶筱;亢燕铭;左滨;钟珂;;东华大学学报(自然科学版);20151215(06);全文 * |
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