Air outlet pipeline structure of central air conditioner

Abstract

The utility model discloses an air outlet pipeline structure of a central air conditioner, which comprises a pipeline body, a main connecting end and an auxiliary connecting end are respectively arranged at two ends of the pipeline body, the pipeline body comprises an inner pipeline and an outer pipeline, the inner pipeline is arranged inside the outer pipeline, an outer heat insulation layer is arranged on the inner wall of the outer pipeline, and an outer heat insulation layer is arranged on the inner wall of the outer pipeline. An outer heat insulation layer is arranged on the outer wall of the outer pipeline, an inner heat insulation layer is arranged on the outer wall of the inner pipeline, a noise reduction layer is filled between the outer heat insulation layer and the inner heat insulation layer, a plurality of reinforcing ribs are annularly arranged in the outer wall of the outer pipeline, and through holes communicated with the pipeline body are formed in the surfaces of the main connecting end and the auxiliary connecting end. Due to the arrangement of the inner pipeline, the outer pipeline, the outer heat insulation layer, the inner heat insulation layer, the noise reduction layer and the reinforcing ribs, not only is a good heat insulation effect achieved, but also a certain buffering effect can be achieved when thermal expansion and cold contraction happen, and the service life of the heat insulation pipeline is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline technical field, concretely is a kind of air outlet pipeline structure of central air conditioning. BACKGROUND

[0002] In heating and ventilation industry, air pipe is mainly used to connect two places, to realize the air circulation between two places, play the role of ventilation, is the most widely used heating and ventilation pipeline on market.

[0003] The existing central air conditioning is in work, the cold wind or warm wind made is sent to specified position by air outlet pipeline, in this process, since air volume is big and wind force is strong, therefore, it can generate larger noise, therefore, air outlet pipeline can be in high temperature state or low temperature state in the working process, to generate thermal expansion and cold shrink condition, especially in the case of external extreme high temperature or low temperature, it is easy to cause pipe rupture due to the excessive temperature difference between inside and outside, cause undesirable consequences, therefore, a kind of air outlet pipeline structure of central air conditioning is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of air outlet pipeline structure of central air conditioning to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of air outlet pipeline structure of central air conditioning, including pipeline body, the two ends of the pipeline body are provided with main connection end and auxiliary connection end respectively, the pipeline body includes inner pipeline and outer pipeline, the inner pipeline is arranged in the inside of the outer pipeline, the inner wall of the outer pipeline is provided with outer heat insulation layer, and the outer wall of the inner pipeline is provided with inner heat insulation layer, and the outer heat insulation layer and the inner heat insulation layer are filled with sound-absorbing layer, the outer wall of the outer pipeline is arranged with a plurality of reinforcing ribs in annular.

[0006] Preferably, the surface of the main connection end and auxiliary connection end is provided with through hole communicated with the pipeline body, the surface of the main connection end is provided with the insertion slot matched with the auxiliary connection end, the outer wall of the auxiliary connection end is provided with external thread, and the auxiliary connection end is connected with the insertion slot of the corresponding main connection end by external thread.

[0007] Preferably, the inner wall of the insertion slot is provided with sealing ring, and the outer wall of the main connection end is provided with four annularly distributed limit bolts, and the outer wall of the auxiliary connection end is provided with four annularly distributed bolt holes.

[0008] Preferably, the sound-absorbing layer is filled with sound-absorbing sponge.

[0009] Preferably, the inner wall of the inner pipeline is provided with anticorrosion layer.

[0010] Compared with the prior art, the utility model discloses have inner pipeline, outer pipeline, outer heat insulating layer, inner heat insulating layer, sound-absorbing layer and reinforcing rib, not only have good heat insulation effect, can have certain buffer effect when thermal expansion and cold shrinkage occur simultaneously, improve the service life of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is external structure schematic diagram of the utility model;

[0012] Fig. 2 It is cross section structure schematic diagram of outer pipeline and inner pipeline of the utility model.

[0013] In the drawing: 1, inner pipeline;2, outer pipeline;3, outer heat insulating layer;4, inner heat insulating layer;5, sound-absorbing layer;6, reinforcing rib;7, main connecting end;8, vice connecting end;9, anticorrosive layer. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0015] Please refer to Figs. 1-2 The utility model provides a kind of technical scheme: a kind of air outlet pipeline structure of central air conditioning, including pipeline body, and the two ends of pipeline body are provided with main connecting end 7 and vice connecting end 8 respectively, and pipeline body includes inner pipeline 1 and outer pipeline 2, and inner pipeline 1 is arranged in the inside of outer pipeline 2, and outer heat insulating layer 3 is arranged on the inner wall of outer pipeline 2, and inner heat insulating layer 4 is arranged on the outer wall of inner pipeline 1, both are made of rock wool heat preservation material, and sound-absorbing layer 5 is filled between outer heat insulating layer 3 and inner heat insulating layer 4, and the inside of the outer wall of outer pipeline 2 is annularly provided with several reinforcing ribs 6 of steel wire material;

[0016] The surface of main connecting end 7 and vice connecting end 8 is all provided with the through hole that is communicated with pipeline body, and the surface of one side of main connecting end 7 is provided with the insertion slot that is matched with vice connecting end 8, and outer thread is provided on the outer wall of vice connecting end 8, and vice connecting end 8 is connected with the insertion slot thread of corresponding main connecting end 7 by outer thread;

[0017] The inner wall of insertion slot is provided with sealing ring, and the outer wall of main connecting end 7 is provided with four limit bolts that are annularly distributed, and four bolt holes that are annularly distributed are formed in the outer wall of vice connecting end 8;

[0018] The sound-absorbing layer 5 is filled with sound-absorbing sponge, which plays a sound-absorbing role and has a certain deformation space;

[0019] The inner pipeline 1 is provided with an anticorrosion layer 9 on the inner wall, and the anticorrosion treatment is performed on the inner wall of the pipeline by coating 1-2mm anticorrosive paint on the inner wall of the pipeline.

[0020] Working principle: in use, the internal medium is transported through the inner pipeline 1, the inner heat insulation layer 4 arranged on the outer wall of the inner pipeline 1 can effectively avoid the temperature of the internal medium from being transferred outward to play a heat preservation effect, meanwhile, the outer heat insulation layer 3 arranged on the inner wall of the outer pipeline 2 can effectively avoid the influence of the external temperature on the inner pipeline 1, and the inner pipeline 1 and the outer pipeline 2 are filled with the heat insulation cotton to play a sound-absorbing role and have a certain deformation space to avoid breakage in thermal expansion and cold contraction.

[0021] It should be noted that, in this text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0022] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An air outlet duct structure of a central air conditioner, comprising a duct body, characterized in that: The pipeline body is provided with a main connecting end (7) and a secondary connecting end (8) at two ends respectively, the pipeline body comprises an inner pipeline (1) and an outer pipeline (2), the inner pipeline (1) is arranged inside the outer pipeline (2), an outer heat insulation layer (3) is arranged on the inner wall of the outer pipeline (2), an inner heat insulation layer (4) is arranged on the outer wall of the inner pipeline (1), and a sound insulation layer (5) is filled between the outer heat insulation layer (3) and the inner heat insulation layer (4), and a plurality of reinforcing ribs (6) are arranged in a ring shape inside the outer wall of the outer pipeline (2).

2. The air outlet duct structure of a central air conditioner according to claim 1, wherein: The surface of the main connecting end (7) and the secondary connecting end (8) is provided with a through hole in communication with the pipeline body, the surface of the main connecting end (7) is provided with a slot matched with the secondary connecting end (8), the outer wall of the secondary connecting end (8) is provided with external threads, and the secondary connecting end (8) is threadedly connected with the slot of the corresponding main connecting end (7) through the external threads.

3. The air outlet duct structure of a central air conditioner according to claim 2, wherein: The inner wall of the slot is provided with a sealing ring, the outer wall of the main connecting end (7) is provided with four limiting bolts distributed in a ring shape, and the outer wall of the secondary connecting end (8) is provided with four bolt holes distributed in a ring shape.

4. The air outlet duct structure of a central air conditioner according to claim 1, wherein: The sound insulation layer (5) is filled with sound insulation sponge.

5. The air outlet duct structure of a central air conditioner according to claim 1, wherein: The inner wall of the inner pipeline (1) is provided with an anti-corrosion layer (9).

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