CN201259300Y

CN201259300Y - Oil return insertion tube type noise deadener

Info

Publication number: CN201259300Y
Application number: CNU2008200996262U
Authority: CN
Inventors: 吴彦东; 游斌; 莫平辉
Original assignee: Guangdong Midea Electric Appliances Co Ltd
Current assignee: Midea Group Co Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-06-17
Anticipated expiration: 2018-07-30

Abstract

The utility model relates to an insert tube type oil-returnable muffler, which comprises a first insert tube (1), a shell (2) and a second insert tube (3); wherein, the first insert tube (1) is inserted in the gaseous refrigerant outlet of the shell; the second insert tube (3) is inserted in the gaseous refrigerant inlet of the shell; and the muffler is characterized in that the inserted ends of the first insert tube (1) or/and the second insert tube (3) are provided with a plurality of return oil holes (11). Since the first insert tube is inserted in the gaseous refrigerant outlet of the shell, the second insert tube is inserted in the gaseous refrigerant inlet of the shell and the inserted ends of the first insert tube or/and the second insert tube are provided with a plurality of return oil holes, the muffler can ensure that the lubricant brought in along with gaseous refrigerant can be smoothly discharged, so that oil return and muffling effects can be affected, moreover, the muffling frequency band can be broadened, and the resistance loss can be reduced.

Description

But pipe silencer is inserted in oil return

Technical field:

But the utility model is a kind of insertion pipe silencer of oil return, is applied on air-conditioning blast pipe or the muffler, belongs to the improvement technology of inserting pipe silencer.

Background technology:

The silencer of idle call at present is generally the expanding silencer or inserts muffler pipe, the expanding acoustic wave filter structure as shown in Figure 1, it is simple in structure, noise elimination frequency band is narrower, whole sound deadening capacity is less than normal, for the pneumatic noise of frequency band broad, a plurality of expanding silencers that often need to connect just can reach the noise elimination effect; The structure of existing insertion muffler pipe as shown in Figure 2, though this kind silencer can be realized broadband and eliminate the noise, but owing to have intubate in the suppressor case, can't discharge smoothly with the lubricating oil that gaseous coolant is brought into, can only in silencer, slowly assemble, silencer is interior because a large amount of gatherings of lubricating oil, cause the effective length of suppressor case to shorten, cause best noise elimination frequency band to change, influenced the noise elimination effect, in addition, lubricating oil can't be discharged smoothly, also the compressor oil starvation can be caused, the reliability of air-conditioning may be influenced.

The utility model content:

The purpose of this utility model is to consider the problems referred to above, and providing a kind of does not influence oil return and noise elimination effect to guarantee that the lubricating oil that refrigerant carries can discharge smoothly, can widen noise elimination frequency band again, reduces the insertion pipe silencer of drag losses.

The technical solution of the utility model is: but a kind of insertion pipe silencer of oil return, comprise first intubate, housing and second intubate, wherein first intubate is inserted into the outlet of housing gaseous coolant, second intubate is inserted into housing gaseous coolant inlet, and described first intubate is or/and offer some spill ports on the insertion end of second intubate.

The utility model is owing to adopt first intubate to be inserted into the outlet of housing gaseous coolant, second intubate is inserted into housing gaseous coolant inlet, first intubate is or/and offer the structure of some spill ports on the insertion end of second intubate, therefore, it can make the lubricating oil of bringing into gaseous coolant discharge smoothly, do not influence oil return and noise elimination effect, can widen noise elimination frequency band again, reduce drag losses.

Description of drawings:

Fig. 1 is the structural representation of prior art expanding silencer;

Fig. 2 expands the structural representation that inserts pipe silencer for prior art;

Fig. 3 is a structural representation of the present utility model.

The specific embodiment:

Below in conjunction with drawings and Examples the specific embodiment of the present utility model is described further.

Embodiment:

As shown in Figure 3, the utility model inserts pipe silencer, comprises first intubate 1, housing 2 and second intubate 3, and wherein first intubate 1 is inserted into the outlet of housing gaseous coolant, second intubate 3 is inserted into housing gaseous coolant inlet, offers three spill ports 11 on the insertion end of described first intubate 1.

In the present embodiment, first intubate 1, housing 2 and second intubate 3 constitute a complete silencer by welding, are welded on the air conditioner piping as assembly then, reach the noise elimination effect; First intubate 1 and second intubate 3 can be the copper pipe arrangements of air-conditioning, when the assembling air-conditioning duct, weld mutually with housing, thereby realize the noise elimination effect.

Claims

But 1, a kind of insertion pipe silencer of oil return, comprise first intubate (1), housing (2) and second intubate (3), wherein first intubate (1) is inserted into the outlet of housing gaseous coolant, second intubate (3) is inserted into housing gaseous coolant inlet, it is characterized in that described first intubate (1) or/and offer some spill ports (11) on the insertion end of second intubate (3).