CN103940160B

CN103940160B - Reservoir

Info

Publication number: CN103940160B
Application number: CN201410095182.5A
Authority: CN
Inventors: 梁双建; 郭宏
Original assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Current assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Priority date: 2014-03-14
Filing date: 2014-03-14
Publication date: 2016-08-31
Anticipated expiration: 2034-03-14
Also published as: CN103940160A

Abstract

The invention discloses a kind of reservoir, including: housing；Air inlet pipe and escape pipe, described air inlet pipe and escape pipe be spaced to turn up the soil and be located on described housing, and described air inlet pipe all connects with described enclosure interior with escape pipe；And at least one segregation apparatus, at least one described segregation apparatus is located in described housing and so that the gas-liquid coolant mixture entering into described enclosure interior from described air inlet pipe is carried out gas-liquid separation between described air inlet pipe and escape pipe.Reservoir according to the present invention, by arranging at least one segregation apparatus in reservoir, segregation apparatus can carry out gas-liquid separation to the gas-liquid coolant mixture entered in reservoir, thus gas-liquid coolant mixture is at least through twice gas-liquid separation in reservoir, reduce the liquid refrigerants amount that compressor sucks, improve the reliability of compressor.

Description

Reservoir

Technical field

The present invention relates to art of refrigeration units, especially relate to a kind of reservoir.

Background technology

Reservoir is compressor, particularly the vitals of rolling rotor compressor, and its Main Function has two aspects: One is to prevent impurity from entering compressor, damages compressor pump；Two when being to prevent compressor from running under unsteady state, Liquid refrigerants flows into compressor and causes liquid hammer, damages compressor pump.Additionally, reservoir also to ensure to flow with coolant Lubricating oil return in compressor, it is ensured that compressor is not at oil starvation state.

Correlation technique is pointed out, when reservoir is as middle pressure air supply tank, is used in two grades of band QI invigorating or quasi-level two, In the system cooled down completely in the middle of particularly, or when reservoir is in the system that the degree of superheat is little, liquid refrigerants is had to enter Reservoir probability is very big, especially when working conditions change, may result in substantial amounts of liquid refrigerants and carries out reservoir, This will cause two serious conditions: one is that compressor pump is likely to suck too much liquid coolant, makes compressor pump There is the situation such as abnormal pressure and lubricious deficiency in internal portion, causes the pump housing abnormal sound and abrasion occur；Two is owing to liquid is cold Matchmaker is bigger than lubricating oil density, and liquid coolant is deposited on bottom reservoir, exceedes spill port height, causes compressor oil return Difficulty, pump housing lack of lubrication, draw pump housing abrasion.

Summary of the invention

It is contemplated that at least solve one of technical problem present in prior art.To this end, one object of the present invention exists In proposing a kind of reservoir, described reservoir can reduce the liquid refrigerants amount that compressor sucks, and improve compressor Oil return, improves the reliability of compressor.

According to the reservoir of the present invention, including: housing；Air inlet pipe and escape pipe, described air inlet pipe and escape pipe are to each other Setting on the housing separatedly, described air inlet pipe all connects with described enclosure interior with escape pipe；And at least one Segregation apparatus, at least one described segregation apparatus be located in described housing and between described air inlet pipe and escape pipe with The gas-liquid coolant mixture entering into described enclosure interior from described air inlet pipe is carried out gas-liquid separation.

According to the reservoir of the present invention, by arranging at least one segregation apparatus in reservoir, segregation apparatus can be to entering The gas-liquid coolant mixture entered in reservoir carries out gas-liquid separation, thus gas-liquid coolant mixture is at least in reservoir Through twice gas-liquid separation, reduce the liquid refrigerants amount that compressor sucks, improve the reliability of compressor.

Specifically, each described segregation apparatus all includes: dividing plate, and described dividing plate is located at described air inlet pipe and described escape pipe Between and described enclosure interior is separated into the first chamber and the second chamber, wherein said air inlet pipe and described first chamber Connection, described escape pipe and described second chamber；And airway, described airway is located on described dividing plate, institute State airway by described first chamber and described second chamber.

Alternatively, the port of export of described airway deviates the arrival end of described escape pipe.

Further, the port of export of described airway less than described escape pipe arrival end or with the arrival end of described escape pipe Concordant.

Alternatively, the arrival end of described airway deviates the port of export of described air inlet pipe.

Further, the arrival end of described airway higher than described air inlet pipe the port of export or with the port of export of described air inlet pipe Concordant.

Alternatively, the cross-sectional area of described airway is more than or equal to the cross-sectional area of described escape pipe.

Alternatively, the arrival end of described airway stretches in described first chamber, described airway stretch into described first chamber It is formed with at least one inducing QI spill port in indoor part.

Specifically, the part stretched in described first chamber of described airway vertically extends, described inducing QI oil return Hole is two and said two inducing QI spill port is spaced apart from each other in the axial direction of described airway.

Alternatively, described dividing plate is horizontally disposed with, the described inducing QI spill port closest with described dividing plate and described dividing plate it Between distance be 1mm～25mm.

Alternatively, fixed by interference fit between described dividing plate and described housing or be welded and fixed.

Alternatively, described escape pipe is located at the bottom of described housing, and the arrival end of described escape pipe stretches in described housing, At least one spill port of giving vent to anger it is formed with, with described housing bottom in the part stretched in described housing of described escape pipe Distance between spill port and described housing bottom of giving vent to anger described in closest is 4mm～40mm.

Alternatively, it is provided with filter between described air inlet pipe and described segregation apparatus.

The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description Substantially, or by the practice of the present invention recognize.

Accompanying drawing explanation

Above-mentioned and/or the additional aspect of the present invention and advantage will become bright from combining the accompanying drawings below description to embodiment Aobvious and easy to understand, wherein:

Fig. 1 is the top view of reservoir according to embodiments of the present invention；

Fig. 2 is the profile of line A-A along Fig. 1；

Fig. 3 is the efficiency variation diagram with airway Yu escape pipe internal diameter ratio of reservoir according to embodiments of the present invention；

Fig. 4 is the profile of reservoir in accordance with another embodiment of the present invention.

Reference:

100: reservoir；

1: housing；11: the first chambers；12: the second chambers；

2: air inlet pipe；3: escape pipe；31: spill port of giving vent to anger；

41: dividing plate；411: horizontal plate；412: flange；42: airway；421: inducing QI spill port；

5: filter.

Detailed description of the invention

Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish phase Same or similar label represents same or similar element or has the element of same or like function.Below with reference to The embodiment that accompanying drawing describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.

In describing the invention, it is to be understood that term " " center ", " laterally ", " length ", " on ", D score, " left ", The instruction such as " right ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", " circumferential " Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification Describe rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration And operation, therefore it is not considered as limiting the invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed Or implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple " It is meant that two or more.

In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or integratedly Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals. For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.

Describing reservoir 100 according to embodiments of the present invention below with reference to Fig. 1-Fig. 4, reservoir 100 is suitably employed in be had In the system of compressor especially rolling rotor compressor (not shown).In the application explained below, with Reservoir 100 illustrates as a example by being used for having in the system of rolling rotor compressor.Certainly, the skill in this area Art personnel are appreciated that reservoir 100 can be also used for having in the system of other type of compressor.

As shown in Figure 1, Figure 2 and Figure 4, reservoir 100 according to embodiments of the present invention, including housing 1, air inlet pipe 2, Escape pipe 3 and at least one segregation apparatus.

Air inlet pipe 2 and escape pipe 3 are spaced to turn up the soil and are located on housing 1, air inlet pipe 2 and escape pipe 3 all with housing 1 Internal connection.Such as in the example of Fig. 2 and Fig. 4, housing 1 is vertically arranged, and the central axis of housing 1 is along perpendicular Nogata is to extension, and air inlet pipe 2 is located at the top of housing 1, thus gas-liquid coolant mixture can be entered by air inlet pipe 2 Entering to housing 1 internal, escape pipe 3 is located at the bottom of housing 1, thus the gaseous coolant after gas-liquid separation can pass through It is outside that escape pipe 3 drains into housing 1.It addition, by reservoir 100 being arranged on compressor such as rolling rotor-type pressure The upstream (i.e. the upstream of coolant flow direction) of the air entry of contracting machine, is possible to prevent liquid refrigerants to flow directly into compressor Such as rolling rotor compressor causes liquid hammer, it is to avoid damaging compressor pump, in other words, improve compressor can By property, extend the service life of compressor.

At least one segregation apparatus is located in housing 1, and at least one segregation apparatus is positioned at air inlet pipe 2 and escape pipe 3 Between so that the gas-liquid coolant mixture entered into from air inlet pipe 2 within housing 1 is carried out gas-liquid separation.With reference to Fig. 2 and Fig. 4, gas-liquid coolant mixture, after air inlet pipe 2 enters in housing 1, can first pass through segregation apparatus and carry out once gas Liquid separates, and then can carry out a gas-liquid separation during from segregation apparatus to escape pipe 3 again, thus work as liquid storage Device 100 as in press air supply tank, be used in band QI invigorating two grades or quasi-level two, particularly in the middle of cool down completely be In system, or when reservoir 100 is in the system that the degree of superheat is little, efficiently avoid compressor and suck too much liquid State coolant, thus inside compressor pump, it is difficult to that the situation such as abnormal pressure and lack of lubrication occurs, extend compressor Service life.Certainly, the invention is not restricted to this, in housing 1, be also provided with multiple segregation apparatus, the most multiple points Be spaced apart from each other in the vertical direction layout from device, to improve the gas-liquid separation effect (figure of reservoir 100 further Not shown).It is to be appreciated that the quantity of segregation apparatus and arrangement etc. can be arranged according to actual requirement, Preferably to meet actual requirement.

Reservoir 100 according to embodiments of the present invention, by arranging at least one segregation apparatus in reservoir 100, point The gas-liquid coolant mixture entered in reservoir 100 can be carried out gas-liquid separation from device, thus at reservoir 100 Interior gas-liquid coolant mixture, at least through twice gas-liquid separation, reduces compressor such as rolling rotor compressor and sucks Liquid refrigerants amount, improve the reliability of compressor.

In one particular embodiment of the present invention, as shown in Figure 2 and Figure 4, each segregation apparatus all includes: dividing plate 41 and airway 42, dividing plate 41 is located between air inlet pipe 2 and escape pipe 3, and dividing plate 41 separates internal for housing 1 Becoming the first chamber 11 and the second chamber 12, wherein air inlet pipe 2 connects with the first chamber 11, escape pipe 3 and the second chamber Room 12 connects.Airway 42 is located on dividing plate 41, and the first chamber 11 is connected by airway 42 with the second chamber 12.

Such as in the example of Fig. 2 and Fig. 4, dividing plate 41 is horizontally disposed with, in i.e. dividing plate 41 is arranged horizontally in housing 1, Specifically, dividing plate 41 includes horizontal plate 411 and flange 412, and horizontal plate 411 is horizontally extending, flange 412 Be formed as the shape suitable with the shape of the internal perisporium of housing 1, such as flange 412 and be formed generally as drum, And the upper end of flange 412 is connected with the outward flange of horizontal plate 411 and lower end extends straight down, outside flange 412 Perisporium is adapted to be attached on the inwall of housing 1, thus is separated into upper and lower two chambers, the i.e. first chamber by internal for housing 1 Room 11 and the second chamber 12, now the first chamber 11 is positioned at the top of the second chamber 12, and airway 42 is located in water On flat board 411, and the upper end of airway 42 extends upwardly into the first chamber 11, and the lower end of airway 42 extends downwardly into In the second chamber 12, the gas-liquid coolant mixture so entered from air inlet pipe 2 can be first into the first chamber 11 In, in the first chamber 11, in the coolant of gas-liquid mixed, the ratio of liquid coolant is higher, the coolant warp in the first chamber 11 Airway 42 injects the second chamber 12, and in the second chamber 12, gas-liquid separates further, can reduce compressor such as The liquid coolant amount that rolling rotor compressor sucks.Alternatively, dividing plate 41 can moreover be only horizontal plate 411, level The outward flange of plate 411 can be joined directly together (not shown) with the inwall of housing 1.Certainly, the invention is not restricted to this, In other examples of the present invention, dividing plate 41 can also obliquely or vertically be arranged in housing 1 (not shown). It is to be appreciated that dividing plate 41 and the concrete shape of airway 42 and the position that arranges in housing 1 can bases Actual requirement is arranged, preferably to meet actual requirement.

Alternatively, being fixed by interference fit or be welded and fixed between dividing plate 41 and housing 1, now dividing plate 41 can lead to Cross the inwall interference fit of flange 412 and housing 1, or link into an integrated entity by the way of welding, thus, it is possible to Dividing plate 41 is arranged on securely housing 1 internal, and is simple to manufacture, easy to assembly.

In an alternate embodiment of the present invention where, the port of export (such as, the lower end in Fig. 2 and Fig. 4) of airway 42 Deviate from the arrival end (such as, the upper end in Fig. 2 and Fig. 4) of trachea 3.With reference to Fig. 2 and Fig. 4, escape pipe 3 The part extending in the second chamber 12 vertically extend, now escape pipe 3 extend into the second chamber 12 The central axis of interior part vertically extends, and the part stretched in the second chamber 12 of airway 42 is to side (such as, the left side in Fig. 2 and Fig. 4) tilts, now the part stretched in the second chamber 12 of airway 42 Between the central axis of the part extending in the second chamber 12 of central axis and escape pipe 3, there is certain angle, It is to say, the entrance of the outlet of airway 42 and escape pipe 3 misaligns, thus prevent airway 42 out Liquid refrigerants is directly entered escape pipe 3, and then enters into compressor pump, improves the reliability of compressor.Here, It should be noted that " port of export " can be understood as going out of the flow direction of the coolant in airway 42 or escape pipe 3 One end of mouth, correspondingly, " arrival end " is the entrance of the flow direction of the coolant in airway 42 or escape pipe 3 One end.

Further, the port of export of airway 42 less than the arrival end of escape pipe 3, or the port of export of airway 42 with The arrival end of escape pipe 3 keeps concordant.As shown in Figure 2 and Figure 4, airway 42 the port of export (such as, Fig. 2 and Lower end in Fig. 4) end face be positioned at the end face of arrival end (such as, the upper end in Fig. 2 and Fig. 4) of escape pipe 3 Lower section, in other words, the outlet height of airway 42 is less than the entrance height of escape pipe 3, such that it is able to improve liquid storage Gas flow within device 100, strengthens coolant gas-liquid separation ability in the second chamber 12 further, improves compression The efficiency of machine.

Alternatively, the port of export (example of arrival end (such as, the upper end in Fig. 4) the deviation air inlet pipe 2 of airway 42 As, the lower end in Fig. 4).The most in the example of fig. 4, the port of export of air inlet pipe 2 is stretched through the top of housing 1 Enter in the first chamber 11, and the part stretched in the first chamber 11 of air inlet pipe 2 is to side (such as, in Fig. 4 Left side) tilt, the part stretched in the first chamber 11 of airway 42 vertically extends, now airway 42 The central axis of the part extending in the first chamber 11 vertically extend, now airway 42 stretch into The central axis of the part extending in the first chamber 11 of the central axis of the part in one chamber 11 and air inlet pipe 2 Between there is certain angle, say, that the entrance of airway 42 misaligns with the outlet of air inlet pipe 2, thus anti- Having stopped liquid refrigerants and be directly entered airway 42, and then entered into compressor pump, further increase compressor can By property.Here, it should be noted that " port of export " can be understood as the coolant in airway 42 or air inlet pipe 2 One end of the outlet of flow direction, correspondingly, " arrival end " is the flowing of the coolant in airway 42 or air inlet pipe 2 One end of the entrance in direction.

Further, the arrival end of airway 42 higher than the port of export of air inlet pipe 2, or the arrival end of airway 42 with The port of export of air inlet pipe 2 keeps concordant.As shown in Figure 4, the arrival end (such as, the upper end in Fig. 4) of airway 42 End face be positioned at the top of end face of the port of export (such as, the lower end in Fig. 4) of air inlet pipe 2, in other words, air inlet The outlet height of pipe 2 is less than the entrance height of airway 42, such that it is able to improve in reservoir 100 first chamber 11 Gas flow, strengthen reservoir 100 gas-liquid separation ability.

In one embodiment of the invention, the cross-sectional area of airway 42 is more than or equal to the cross-sectional area of escape pipe 3. Being pipe for example, referring to Fig. 2 and Fig. 4, airway 42 and escape pipe 3, now the internal diameter of airway 42 should be greater than Equal to the internal diameter of escape pipe 3, consequently facilitating the gas flowing within reservoir 100, reduce gas therein Flow resistance, improves the efficiency of compressor such as rolling rotor compressor.

With reference to Fig. 3, the abscissa in figure represents the ratio of the internal diameter of airway 42 and the internal diameter of escape pipe 3, vertical coordinate Represent efficiency (COP, i.e. Coefficient of Performance, the performance of compressor such as rolling rotor compressor Coefficient).From figure 3, it can be seen that be more than or equal to 1 at the internal diameter of airway 42 with the ratio of the internal diameter of escape pipe 3 Time compressor efficiency more than the ratio of the internal diameter of internal diameter and escape pipe 3 at airway 42 less than 1 time compressor energy Effect.

In further embodiment of the present invention, the arrival end of airway 42 stretches in the first chamber 11, airway 42 The part stretched in the first chamber 11 on be formed with at least one inducing QI spill port 421.Such as Fig. 2's and Fig. 4 In example, inducing QI spill port 421 is formed on the sidewall of the part stretched in the first chamber 11 of airway 42, and Inducing QI spill port 421 runs through the sidewall of airway 42, thus can pass through inducing QI oil return with the lubricating oil of cold-producing medium flowing Hole 421 enters in the second chamber 12, and returns to, in compressor, make by the spill port 31 of giving vent to anger on escape pipe 3 Compressor is not at oil starvation state, it is ensured that compressor lubrication is sufficient, is difficult to cause the situation such as abrasion of compressor.Can Selection of land, generally circular in shape, oval, the Long Circle of inducing QI spill port 421 or polygon etc..

Specifically, the part stretched in the first chamber 11 of airway 42 vertically extends, inducing QI spill port 421 It is two and two inducing QI spill ports 421 are spaced apart from each other in the axial direction of airway 42.Reference Fig. 2 and Fig. 4, two Individual inducing QI spill port 421 is spaced from each other setting in the vertical direction, and the inducing QI spill port 421 of top is located substantially at leads The top of trachea 42, the middle part of the first chamber 11, the inducing QI spill port 421 of lower section is located substantially at the first chamber 11 Bottom, when depositing more liquid coolant in the first chamber 11, has exceeded the height of the inducing QI spill port 421 of lower section, The lubricating oil floating over top can be entered in airway 42 by the inducing QI spill port 421 of top, and is eventually returned to compression In machine.

Alternatively, the distance and between closest inducing QI spill port 421 and the dividing plate 41 of dividing plate 41 is 1mm～25mm. As shown in Figure 2 and Figure 4, the inducing QI spill port 421 of lower section is 1mm～25mm apart from the height of dividing plate 41, its tool Body numerical value can be designed according to the structure of actual reservoir 100, to strengthen oil return.

Alternatively, the arrival end of escape pipe 3 stretches in housing 1, and the part stretched in housing 1 of escape pipe 3 is formed Have at least one spill port 31 of giving vent to anger, and bottom nearest give vent to anger spill port 31 and the housing 1 of housing 1 distance from bottom between Distance be 4mm～40mm.With reference to Fig. 2 and Fig. 4, spill port 31 of giving vent to anger runs through the sidewall of escape pipe 3, and gives vent to anger Spill port 31 is formed at the bottom of the part stretched in the second chamber 12 of escape pipe 3.

When arrange on escape pipe 3 multiple give vent to anger spill port 31 time, minimum spill port 31 distance the second chamber 12 of giving vent to anger The distance of bottom is 4mm～40mm, and its concrete numerical value can be designed according to the structure of actual reservoir 100, To improve compressor oil return, owing to having the first chamber 11 and the second chamber 12, the first chamber 11 in reservoir 100 In liquid refrigerants deposition, the liquid refrigerants amount in the second chamber 12 is preferable, by arrange rational spill port quantity and Highly, the lubrication of compressor such as rolling rotor compressor pump body can be better ensured that.

Alternatively, filter 5 it is provided with between air inlet pipe 2 and segregation apparatus.The most in the figure 2 example, filter 5 Being located between the port of export and the segregation apparatus of air inlet pipe 2, alternatively, filter 5 is filter screen, can avoid in pipeline Impurity etc. be directly entered in compressor.Certainly, can also be without arranging filter 5 in reservoir 100, as shown in Figure 4, Owing to there being double-decker space, can preferably reach gas-liquid separation effect, therefore can save filter 5.

In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ", " show Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes specific features, structure, Material or feature are contained at least one embodiment or the example of the present invention.In this manual, above-mentioned term is shown The statement of meaning property is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy Point can combine in any one or more embodiments or example in an appropriate manner.

Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not taking off In the case of the principles and objective of the present invention, these embodiments can be carried out multiple change, revise, replace and modification, The scope of the present invention is limited by claim and equivalent thereof.

Claims

1. a reservoir, it is characterised in that including:

Housing；

Air inlet pipe and escape pipe, described air inlet pipe and escape pipe be spaced to turn up the soil and be located on described housing, described air inlet pipe All connect with described enclosure interior with escape pipe；And

At least one segregation apparatus, at least one described segregation apparatus is located in described housing and is positioned at described air inlet pipe and goes out So that the gas-liquid coolant mixture entering into described enclosure interior from described air inlet pipe is carried out gas-liquid separation between trachea, each Described segregation apparatus all includes that dividing plate and airway, described dividing plate are located between described air inlet pipe and described escape pipe and by institute State enclosure interior and be separated into the first chamber and the second chamber, wherein said air inlet pipe and described first chamber, described in go out Trachea and described second chamber, described airway is located on described dividing plate, described airway will described first chamber with Described second chamber, the port of export of described airway deviates the arrival end of described escape pipe.

Reservoir the most according to claim 1, it is characterised in that the port of export of described airway be less than described in give vent to anger The arrival end or concordant with the arrival end of described escape pipe of pipe.

Reservoir the most according to claim 1 and 2, it is characterised in that the arrival end deviation of described airway is described The port of export of air inlet pipe.

Reservoir the most according to claim 3, it is characterised in that the arrival end of described airway is higher than described air inlet The port of export or concordant with the port of export of described air inlet pipe of pipe.

Reservoir the most according to claim 1, it is characterised in that the cross-sectional area of described airway is more than or equal to institute State the cross-sectional area of escape pipe.

Reservoir the most according to claim 1, it is characterised in that the arrival end of described airway stretches into described first In chamber, the part stretched in described first chamber of described airway is formed with at least one inducing QI spill port.

Reservoir the most according to claim 6, it is characterised in that stretching in described first chamber of described airway Part vertically extend, described inducing QI spill port is that two and said two inducing QI spill port are at described airway It is spaced apart from each other on Zhou Xiang.

Reservoir the most according to claim 6, it is characterised in that described dividing plate is horizontally disposed with, with described dividing plate away from Distance between nearest described inducing QI spill port and described dividing plate is 1mm～25mm.

Reservoir the most according to claim 1, it is characterised in that pass through interference between described dividing plate and described housing Coordinate fixing or be welded and fixed.

Reservoir the most according to claim 1, it is characterised in that described escape pipe is located at the bottom of described housing,

The arrival end of described escape pipe stretches in described housing, and the part stretched in described housing of described escape pipe is formed Have at least one spill port of giving vent to anger, closest with described housing bottom described in give vent to anger spill port and described housing bottom it Between distance be 4mm～40mm.

11. reservoirs according to claim 1, it is characterised in that between described air inlet pipe and described segregation apparatus It is provided with filter.