CN219775914U - Efficient air replacement device convenient for construction in limited space - Google Patents

Abstract

The utility model relates to the technical field of air replacement, in particular to a high-efficiency air replacement device convenient for construction in a limited space, which comprises ventilation equipment; the ventilation equipment comprises a shell, the upper and lower both ends of shell are provided with its inside exhaust vane of intercommunication and suction vane respectively, the central point of shell puts and installs the center pin, the outer fringe face of center pin is provided with a center section of thick bamboo, the center pin with the fixed block is installed to the hookup location of shell, has seted up high-pressure refrigerant import on the shell, has seted up the low-pressure refrigerant export with high-pressure refrigerant import intercommunication on the center section of thick bamboo, through the contrast traditional air replacement device such as air-blower etc. that is equipped with, has more efficient air replacement efficiency, lighter volume, is applicable to pipeline inside and uses the operation to and similar narrow and small airtight space, and higher air replacement efficiency promotes operation interval period, and construction operation personnel can continuity operation, thereby shortens the time limit for a project.

Description

Efficient air replacement device convenient for construction in limited space

Technical Field

The utility model relates to the technical field of air replacement, in particular to a high-efficiency air replacement device convenient for construction in a limited space.

Background

Jobs in confined spaces are known as confined space jobs. The limited space operation has wide related fields, more industries, complex operation environment, more dangerous and harmful factors, easy occurrence of safety accidents and serious consequences; the rescue difficulty is high when the operators are in danger, the blind rescue or the rescue method is improper, and the casualties are easily enlarged. In the field level three-area project implemented at the present stage, a large amount of pipeline construction exists, and after the pipeline construction is finished, the next-step earth-rock backfilling and other works can be carried out, so that in the pipeline construction operation process, the limited space operation difficulty is high, the danger coefficient is high, the operation flow is complex, the limiting factors are large, the safety production is ensured to be the primary premise of the construction production, the working efficiency, the construction quality and other conditions are directly influenced in the aspect of safety, and the cost investment can be indirectly increased.

Inside the existing pipeline, a series of problems such as poor air quality, low air conversion efficiency, low construction efficiency and the like can occur in the construction process.

Disclosure of Invention

The utility model aims to provide a high-efficiency air replacement device convenient for construction in a limited space, which aims to solve a series of problems of poor air quality, low air conversion efficiency, low construction efficiency and the like in the construction process caused by the fact that the prior pipeline is provided in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high-efficiency air replacement device convenient for construction in a limited space comprises ventilation equipment;

the ventilation equipment comprises a shell, the upper end and the lower end of the shell are respectively provided with an exhaust blade and an air suction blade which are communicated with the upper end and the lower end of the shell, a central shaft is arranged at the central position of the shell, a central cylinder is arranged on the outer edge surface of the central shaft, a fixed block is arranged at the connecting position of the central shaft and the shell, a high-pressure refrigerant inlet is formed in the shell, a low-pressure refrigerant outlet communicated with the high-pressure refrigerant inlet is formed in the central cylinder, and a sealing window is arranged at the connecting position of the central shaft and the shell.

Preferably, the outer edge surface of the central cylinder is provided with a first blade and a second blade, and a plurality of microporous cylinders are arranged on the first blade and the second blade.

Preferably, both ends of the central cylinder are provided with sliding friction bearing surfaces connected with the shell, a first bearing and a second bearing connected with the shell are mounted on both sliding friction bearing surfaces, and a movable sealing ring is mounted between the first bearing and the second bearing.

Preferably, the periphery of ventilation equipment is provided with the concrete pipe, the outer fringe face laminating of ventilation equipment is provided with the ring, the outer fringe face of ring is the annular array equidistance around its bloodletting and installs a plurality of cover posts, a plurality of all slidable mounting in the cover post the short column of butt concrete pipe inner edge face.

Preferably, a plurality of rubber blocks for increasing friction are embedded and installed on the short columns, a plurality of sleeve columns are connected with screw threads in a screw mode, and one ends of the screw threads penetrate through the sleeve columns in a screw mode and are abutted to the side faces of the short columns.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the traditional air replacement device, such as a blower and the like, the device has higher air replacement efficiency and lighter volume, is suitable for use and operation in pipelines and similar narrow closed spaces, has higher air replacement efficiency, improves the operation interval time period, and can be continuously operated by construction operators, so that the construction period is shortened;

2. the device is extremely suitable for pipeline construction operation in summer and coastal high-temperature areas, and in view of the fact that the coastal zone of Guangdong at the current test site is in a high-temperature state for a long time in one year, the air replacement efficiency and simpler construction operation flow of the device greatly improve the safety and convenience of construction operation, and the device is provided with a cooling device, has humanized property, and further improves the efficiency of construction operation in a limited space;

3. from the practical point of view of the site, factors such as severe high temperature in summer, insufficient oxygen in the pipeline and the like seriously influence the construction efficiency of site operators, the equipment is put into the construction operation site, the air replacement and cooling in the pipeline can be carried out more efficiently, sufficient oxygen support can be provided in the operation process, and compared with the traditional construction process, the construction efficiency can be greatly accelerated, so that the project cost input is reduced, the project construction period is accelerated, and considerable economic benefit is achieved

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the ventilation apparatus of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure: 1. an exhaust vane; 2. a central shaft; 3. a high-pressure refrigerant introduction port; 4. a first bearing; 5. a movable sealing ring; 6. a suction blade; 7. a second bearing; 8. a fixed block; 9. a housing; 11. a low-pressure refrigerant outlet port; 10. sealing the window; 12. a central cylinder; 13. a first blade; 14. a second blade; 15. a microporous cylinder; 16. a sliding friction bearing surface; 17. a ventilation device; 18. a circular ring; 1801. a sleeve column; 1802. a short column; 1803. a rubber block; 1804. screwing; 19. and (3) a concrete pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, there is shown: the embodiment is a preferred implementation manner in the present technical solution, and a high-efficiency air replacement device for facilitating construction in a limited space includes a ventilation device 17;

the ventilation device 17 comprises a shell 9, wherein the upper end and the lower end of the shell 9 are respectively provided with an exhaust blade 1 and an air suction blade 6 which are communicated with the inside of the shell 9, a central shaft 2 is arranged at the central position of the shell 9, a central cylinder 12 is arranged on the outer edge surface of the central shaft 2, a fixed block 8 is arranged at the connecting position of the central shaft 2 and the shell 9, a high-pressure refrigerant inlet 3 is arranged on the shell 9, a low-pressure refrigerant outlet 11 communicated with the high-pressure refrigerant inlet 3 is arranged on the central cylinder 12, and a sealing window 10 is arranged at the connecting position of the central shaft 2 and the shell 9.

As shown in fig. 1 and 2, the outer edge surface of the center tube 12 is provided with a first blade 13 and a second blade 14, and the first blade 13 and the second blade 14 are provided with a plurality of microporous cylinders 15;

as shown in fig. 1 and 2, both ends of the central cylinder 12 are provided with sliding friction bearing surfaces 16 connected with the shell 9, a first bearing 4 and a second bearing 7 connected with the shell 9 are mounted on both sliding friction bearing surfaces 16, and a movable sealing ring 5 is mounted between the first bearing 4 and the second bearing 7;

as shown in fig. 2, a concrete pipe 19 is arranged at the periphery of the ventilation device 17, a circular ring 18 is attached to the outer edge surface of the ventilation device 17, a plurality of sleeve posts 1801 are equidistantly arranged on the outer edge surface of the circular ring 18 in an annular array around which blood is drawn, and short columns 1802 abutting against the inner edge surface of the concrete pipe 19 are slidably arranged in the plurality of sleeve posts 1801;

as shown in fig. 2 and 3, rubber blocks 1803 for increasing friction are embedded and mounted on the plurality of short columns 1802, screw threads 1804 are connected to the plurality of sleeve columns 1801 in a screw mode, and one end of each screw thread 1804 penetrates through the sleeve column 1801 in a screw mode and abuts against the side face of the short column 1802;

in this embodiment, 2 is a central shaft, which does not rotate itself, and is fixed to the housing 9 by the fixing member 8, and serves as a support for the rotating body. The central shaft is provided with two mutually-non-communicated guide pipes 3 and 11, the cold and high-pressure refrigerant after being condensed and the cold and low-pressure refrigerant after being evaporated are respectively conveyed into the central shaft 12, the guide pipe 3 is connected with a capillary tube of a refrigerating system, and the guide pipe 11 is connected with a refrigerating compressor. The sealing of the central profile is ensured by a sealing ring (10) and a movable sealing ring 5. The refrigerant absorbs heat and evaporates in the sealed space 1, and the temperature of the central cylinder 12 and the blades 13 and 14 thereon is reduced to become a working cold source. The shape, number and distribution of the blades are such that, after rotation, the blades push the displaced air from the suction opening through the suction blade 6, through the space 1 to the discharge opening and cover the whole space 1. After the rotating body rotates under the guarantee of the bearings 4 and 7 and the sliding friction surface 16, the temperature of the replaced air is reduced after the replaced air is conducted into a space (ear) to exchange heat with a central cold source, saturated moisture in the air is condensed on the cylinder 12 and the blades 13 and 14 to form water drops, and the water drops are thrown to the inner wall of the micropore cylinder 15 along the horizontal direction under the centrifugal action and are thrown out of micropores. At the same time, the cooled and dehumidified air reaches the room through the exhaust vane 1, and the whole air replacement process is completed.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. A high efficiency air displacement device for facilitating construction in confined spaces, comprising a ventilation device (17);

the method is characterized in that:

the ventilation equipment (17) comprises a shell (9), the upper end and the lower end of the shell (9) are respectively provided with an exhaust blade (1) and an air suction blade (6) which are communicated with each other, a central shaft (2) is arranged at the central position of the shell (9), a central cylinder (12) is arranged on the outer edge surface of the central shaft (2), a fixing block (8) is arranged at the connecting position of the central shaft (2) and the shell (9), a high-pressure refrigerant inlet (3) is formed in the shell (9), a low-pressure refrigerant outlet (11) communicated with the high-pressure refrigerant inlet (3) is formed in the central cylinder (12), and a sealing window (10) is arranged at the connecting position of the central shaft (2) and the shell (9).

2. The efficient air displacement apparatus for facilitating construction in confined spaces of claim 1, wherein: the outer edge surface of the central cylinder (12) is provided with a first blade (13) and a second blade (14), and a plurality of microporous cylinders (15) are arranged on the first blade (13) and the second blade (14).

3. A high efficiency air displacement apparatus for facilitating construction in confined spaces as set forth in claim 2 wherein: both ends of the central cylinder (12) are provided with sliding friction bearing surfaces (16) connected with the shell (9), a first bearing (4) and a second bearing (7) connected with the shell (9) are arranged on both sliding friction bearing surfaces (16), and a movable sealing ring (5) is arranged between the first bearing (4) and the second bearing (7).

4. The efficient air displacement apparatus for facilitating construction in confined spaces of claim 1, wherein: the periphery of ventilation equipment (17) is provided with concrete pipe (19), the outer fringe face laminating of ventilation equipment (17) is provided with ring (18), a plurality of loop posts (1801) are installed to the outer fringe face of ring (18) around its blood drawing in annular array equidistance, a plurality of all slidable mounting in loop posts (1801) short column (1802) of butt concrete pipe (19) inner edge face.

5. The efficient air displacement apparatus for facilitating construction in confined spaces of claim 4, wherein: the rubber blocks (1803) for increasing friction are embedded and installed on the short columns (1802), the sleeve columns (1801) are connected with screw threads (1804) in a screw mode, and one ends of the screw threads (1804) penetrate through the sleeve columns (1801) in a screw mode and are abutted to the side faces of the short columns (1802).