CN101629578A

CN101629578A - Structure of coolant compressor

Info

Publication number: CN101629578A
Application number: CN200810040580A
Authority: CN
Inventors: 林志宪
Original assignee: SHANGHAI HANBELL PRECISE MACHINERY CO Ltd
Current assignee: SHANGHAI HANBELL PRECISE MACHINERY CO Ltd
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2010-01-20

Abstract

The invention relates to a structure of a coolant compressor, which comprises a shell defining an oil chamber therein and a framework fixedly connected with the shell and extending into the oil chamber, wherein the framework encircles a driving gear set, and the outer surface of the shell is provided with an inlet mounting hole and an outlet mounting hole. The coolant compressor also comprises a first oil separator for receiving a coolant of mixed oil and a second oil separator for outputting the filtered coolant, wherein the two separators are dismountably and correspondingly mounted at the inlet mounting hole and the outlet mounting hole respectively and are communicated with the oil chamber. The structure of the coolant compressor has the following advantages that: the driving gear set is isolated with the oil chamber so that the gear actions has no influence on the oil stability in the oil chamber; the double gas-oil separations allows the compressor to reclaim very pure coolant; and the design that the oil separators which can be quickly dismounted from the outside also makes the part replacement and maintenance more convenient and easier.

Description

The structure of cold medium compressor

Technical field

The present invention relates to a kind of compressor, relate in particular to a kind of structure of cold medium compressor.

Background technique

As seen from Figure 1: typical refrigeration system roughly comprises compressor 90, condenser 91, expansion valve 92, reaches vaporizer 93, its running is: compressor 90 receives gaseous coolant and its pressurization is formed the High Temperature High Pressure gaseous coolant, then refrigerant being conveyed into condenser 91 lowers the temperature and becomes liquid, the operative liquid refrigerant expansion valve 92 of flowing through carries out the puffing step then, the liquid refrigerants of puffing flows to into vaporizer 93 again and is transformed into gaseous state, sends into compressor 90 afterwards again and repetitive cycling.So compressor lacks one of equipment for obtaining in refrigeration system as can be known, and compressor is of a great variety, reciprocating type, rotary, scroll-type, spiral, and centrifugal etc. is arranged.

With reference to figure 2, centrifugal compressor is applied to medium-and-large-sized air-conditioning system more, and the main driving refrigeration system gaseous coolant of being responsible for is finished a thermodynamic cycle.By finding out among the figure that compressor includes the compression unit 95 and power unit 96 that cooperatively interacts, power unit 96 is a motor, also is about to compression unit 95 housings and motor casing and constitutes compressor integral body to be connected and fixed.The shaft gear 961 of motor and 962 engagements of the movable vane wheel axle gear of compression unit 95 make the compression of movable vane wheel rotation carrying out refrigerant thus.In this existing equipment, there is any it should be noted that, it is 951 spaces, grease chamber that expose to ccontaining lubricant oil that the said gear group has very big part, therefore the rotation of gear train must cause the disturbance unstability to mixed oil and gas (referring to mixing of refrigerant and lubricant oil), make the mixed function aggravation, oil, gas separation are had negative effect.

With reference to figure 3, the mixture that comprises refrigerant and oil from vaporizer can be directed in the grease chamber 951.Liquid refrigerants is then behind a heater (figure does not show) heating and gasifying, coolant outlet port place in compression unit 95 housings is equipped with the oil separating device 97 of simple and easy filter screen kenel, the cold media air that oil, gas mix comes out lubrication oil filtration through oil separating device 97 earlier and drips oil revolute chamber 951, filtered gaseous coolant drains into outside the grease chamber 951 through exhaust port, and then the intakeport (figure do not show) that is recovered to compressor compresses.But this structure has some shortcomings, because the screen area of this oil separating device 97 is less than normal, causes the relatively poor and easy consume of filter efficiency first; Second when the replacing of desiring to carry out oil separating device 97, when maintenance, need earlier the dismounting of compressor single-piece frame, so unusual also labor intensive of inconvenience.

From the above, cold medium compressor of the prior art has sizable room for improvement with necessary.

Summary of the invention

The technical issues that need to address of the present invention have provided a kind of structure of cold medium compressor, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:

The present invention includes: a housing, inside define a grease chamber; And a framework, be connected and fixed on this housing and extend in this grease chamber; Described framework is surrounded a driving gear set, and this housing outer surface has provided an inlet mounting hole, reached an outlet mounting hole; Also include first oil separator in order to the refrigerant that receives contaminated product, and one in order to second oil separator of exporting filtered refrigerant respectively removably correspondence be installed in this inlet mounting hole, reach this outlet mounting hole, wherein this first oil separator and this second oil separator are to be communicated with this grease chamber;

Above-mentioned first oil separator and/or second oil separator can comprise by filter screen and one of constitute the drum body, and the end convexes with flange system and is resisted against on the housing.

Above-mentioned first oil separator and/or second oil separator axially can be perpendicular to gravitational direction.

First oil separator and/or second oil separator can press solidly by a flange, and flange is to be attached to housing outer surface.

Compared with prior art, the invention has the beneficial effects as follows:, make the unlikely oil gas that influences in the grease chamber of gear start stable by driving gear set and grease chamber is isolated; Dual Oil-gas Separation effect makes the recyclable very pure refrigerant of compressor; Oil separator can fast quick-detach design also make portion's product replacing, maintenance become more convenient easy in the outside.

Description of drawings

Fig. 1 is typical refrigerating circulation system schematic representation.

Fig. 2 is a centrifugal coolant compressor enclosure interior schematic representation in the prior art.

Fig. 3 is the interior oil separating device allocation plan of compressor housing in the prior art.

Fig. 4 is the cold medium compressor exploded view of a preferred embodiment of the present invention.

Fig. 5 is the cold medium compressor ssembly drawing, gear train, gear chamber and motor is partly omitted.

Fig. 6 is the planimetric map from the C observation of the visual angle of Fig. 4.

Fig. 7 is the sectional view along B-B line among Fig. 6.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

With reference to figure 4 to Fig. 7: cold medium compressor is roughly by the compression shell 10 that coats compression assembly, constituted with the motor casing 30 that coats motor sub-assembly.Housing 10 receives the intakeport 104 of refrigerant to be compressed except being provided with one, has also provided an inlet mounting hole 102, an outlet mounting hole 103 and has been communicated in one of intakeport 104 in outer surface and reclaimed mouth 105.It is compression volume 106, grease chamber 101 that housing 10 inside roughly define three separate space, reach driving gear chamber 111.

Compression volume 106 is that 19 pairs of refrigerants of movable vane wheel compress the space that is utilized, grease chamber 101 is chambers of ccontaining lubricant oil, 111 of gear chamber are the chambers of ccontaining driving gear set 12, wherein the movable vane wheel axle gear 121 on the driving gear set 12 movable vane wheel shaft 191 that refers to be meshing with each other, and motor drive shaft 31 on combination that motor drive shaft gear 122 constitutes.

Said gear chamber 111 is actually by a framework 11 and is defined, that is is formed for the gear chamber 111 of ccontaining driving gear set 12 in the framework 11.Framework 11 is locked to be fixed in the housing 10, and occupies the space of a part of grease chamber 101, and framework 11 is being carried movable vane wheel shaft 191 and motor drive shaft 31, and it is inner and utilize axle Feng Eryu grease chamber 101 to be isolation, only reserves an aperture and is back to the grease chamber for lubricant oil.Therefore driving gear set 12 comes down to be enveloped by framework 11, and when gear train 12 rotated, the oil of 101 inside, grease chamber and refrigerant can not aggravated to mix, cause harmful effect by stirring.

Aforementioned inlet mounting hole 102, and outlet mounting hole 103 places with one first oil separator 13, and one second oil separator 14 install respectively, employed

oil separator

13 and 14 is for including one of filter screen drum

body.Oil separator

13 and 14 respectively abuts against at housing 10 with

end flange

131 and 141, and utilizes

flange

15 and 16 to press solidly respectively,

flange

15 and 16 is locked in housing 10 outer surfaces at last again, therefore is a kind of mounting type of certainly outside dismounting easily.

Above-mentioned two

oil separators

13 and 14 are to communicate in the grease chamber 101, and wherein first oil separator 13 is in order to receive the refrigerant of contaminated product, and second oil separator 14 is in order to output refrigerant after filtration.

In the present embodiment, two

oil separators

13 and 14 installation position such as following: first oil separator 13 be axially perpendicular to gravitational direction G, and the parallel to an axis of second oil separator 14 is in gravitational direction G.

Offer flange inlet 151 and flange outlet 161 on the

flange

15 and 16 respectively, and flange outlet 161 sees through a recovery tube 17 with 105 in the recovery mouth of aforementioned housing and is connected, and utilizes once more so that cold media air after filtration can be recovered in the compressor from second separator 14.

When compressor operation, because vaporizer does not include gaseous state and liquid refrigerants in (figure shows) simultaneously, also all be mixed with lubricant oil, wherein gaseous coolant is directly imported compressor suction 104, the liquid refrigerants that contains oil content on the other hand then is extracted as a power source by the gaseous coolant of condenser (figure does not show), and the inlet 151 that is mixed together on flange 15 enters first separator 13.Most of lubricant oil can be from the filter screen drippage of oil separator 13 after the filtration first time, and cold media air continues to flow to second oil separator 14 and passes through filtration for the second time again, the just outlet on flange 16 161 of extremely pure at last cold media air, gets back to intakeport 104 through recovery tube 17.

What need special instruction certainly is, various refrigeration system designs certainly design other different pipeline makes mixed oil and gas carry out the filtering separation action by first oil separator, it is described to be not limited to embodiment, for example can in the compressor compresses space, establish a Bu Kou simultaneously in addition and make most of oil-containing gaseous coolant concentrate discharge, be recovered to first oil separator through condenser as a power source equally and carry out the filtering separation action.

The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.

Claims

1. the structure of a cold medium compressor, comprising: a housing, inside define a grease chamber; And a framework, be connected and fixed on this housing and extend in this grease chamber; It is characterized in that: described framework is surrounded a driving gear set, and this housing outer surface has provided an inlet mounting hole, reached an outlet mounting hole; Also include first oil separator in order to the refrigerant that receives contaminated product, and one in order to second oil separator of exporting filtered refrigerant respectively removably correspondence be installed in this inlet mounting hole, reach this outlet mounting hole, wherein this first oil separator and this second oil separator are to be communicated with this grease chamber.

2. the structure of cold medium compressor according to claim 1 is characterized in that: this first oil separator is to comprise by filter screen one of constituting the drum body, and the end convexes with flange system and is resisted against on this housing.

3. the structure of cold medium compressor according to claim 2, it is characterized in that: the drum body shaft of this first oil separator is to being perpendicular to gravitational direction.

4. the structure of cold medium compressor according to claim 1, it is characterized in that: this first oil separator is to press solidly with a flange, and this flange is attached to this housing outer surface.

5. the structure of cold medium compressor according to claim 1 is characterized in that: this second oil separator is to comprise by filter screen one of constituting the drum body, and the end convexes with flange system and is resisted against on this housing.

6. the structure of cold medium compressor according to claim 5, it is characterized in that: the drum body shaft of this second oil separator is to being parallel to gravitational direction.

7. the structure of cold medium compressor according to claim 1, it is characterized in that: this second oil separator is to press solidly with a flange, and this flange is attached to this housing outer surface.