CN100473837C - One-way valve of compressor - Google Patents
One-way valve of compressor Download PDFInfo
- Publication number
- CN100473837C CN100473837C CNB2004100197139A CN200410019713A CN100473837C CN 100473837 C CN100473837 C CN 100473837C CN B2004100197139 A CNB2004100197139 A CN B2004100197139A CN 200410019713 A CN200410019713 A CN 200410019713A CN 100473837 C CN100473837 C CN 100473837C
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- Prior art keywords
- valve
- reverse stop
- compressor
- stop valve
- plates
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Abstract
The invention discloses a check valve of a compressor. The check valve consists of a jointed shaft mounted on the member forming a spitting hole or a valve base, a valve board using the jointed shaft as central rotation and a elastomer connected on the valve board to regulate the rotation of the valve board. The check valve is used for compressing gas and spitting hole for spitting compressed gas of the compression member. It can reduce the valve-opening and-closing noise when the check valve is working.
Description
Technical field
The invention belongs to the valve technology field of compressor, more detailed say so about, be provided with the press part that is used for pressurized gas, and the compressor that is used for discharging the tap hole of above-mentioned compressing section compresses gas, be used to prevent that the refrigerant adverse current of discharging by tap hole is to the invention with reverse stop valve of the compressor of press part.
Background technique
Compressor is used for compression work gas to improve the machine of its pressure for passing on power from power generating apparatus such as motor or turbines and exerting pressure to working gas.It is used widely in whole industrial field, and is divided into the compressor of multiple modes such as reciprocating type, Scroll, turbo type according to the mode of its compression work gas.But most of compressor is irrelevant and all have and exert pressure and the press part of compression work gas with the mode of compression work gas, and the structure that the working gas that compresses in the press part is discharged to discharge portion by tap hole.
But, when quit work or the improper situation of operating conditions under, the pressure of the working gas of press part will be lower than discharge portion and the working gas adverse current that makes discharge in press part, and then cause the reduction of compression efficiency by expanding again of working gas.
For this reason, the pressurized gas exhaust port of compressor is equipped with reverse stop valve, is used to prevent to discharge under the above-mentioned situation adverse current phenomenon of gas.In the compressor of prior art, reverse stop valve when work, will produce the valve opening and closing noise and reduce the reliability of compressor.
Below with reference to the interpolation drawing and with the scroll compressor is the problems referred to above that example describes reverse stop valve in the prior art in detail.Fig. 1 points out out the profile diagram of the scroll compressor in the prior art, and Fig. 2 points out out the longitudinal plane part expanded view of the scroll compressor in the prior art.
As shown in the figure, the scroll compressor in the prior art 100 is formed the casing 110 of confined space by inside; Be arranged at the inside of casing 110, be used for the compression mechanical part 130 of compression refrigerant; The mechanism portion 120 of driving force is provided for compression mechanical part 130; Respectively be arranged at the upper and lower sides of mechanism portion 120, the main frame 114 of the running shaft 123 of rotatable support mechanism portion 120 and auxiliary frame 115 etc. are partly formed.Compression mechanical part 130 is made up of following several sections: be provided with the fixedly volume 133 of involute shape, and central authorities connect and to be formed for discharging the tap hole 137 of compression refrigerant, and be fixedly set in the fixedly spool 131 in the inside upper part field of casing 110; Be provided with the rotation volume 134 of assisting to form the involute shape of refrigerant compression volumes with fixing volume 133 mutually, and be incorporated into the eccentric part 124 of running shaft 123, relative movement simultaneously is in fixing spool 131 and the spinning reel 132 of compression refrigerant.
In addition, fixedly spool 131 is provided with reverse stop valve assemblying body 140, is used to prevent the working gas of the compression of discharging by tap hole 137, the adverse current phenomenon under situation such as quit work.Simultaneously, fixedly also be provided with dividing plate 118 on the spool 131, be used for that inside with casing 110 is divided into high pressure side and low voltage side and fix along the fixing upside outer circumferential face of spool 131.The upside of dividing plate 118 is provided with and discharge hides 150, discharges to hide 150 and be provided with the certain containing space that is used to reduce the coolant noise of discharging by reverse stop valve assemblying body 140, runs through upside simultaneously and is communicated in top and hides 112 inside.
Reverse stop valve assemblying body 140 is by being used to open and close the fixedly valve plates 141 of the tap hole 137 of spool 131, and the retainer etc. that is used for control valve door-plate 141 open amounts is partly formed.Undeclared symbol 125 is oil strainers in the drawing, the 127th, and the bearing shell lining; Sleeve pipe, 135 is axle sleeve.
In the scroll compressor of prior art, power supply by addition, to produce magnetic field between the stator 121 of electric motor portion 120 and the gyrator 122, perforation be incorporated into rotation gyrator 122 centers running shaft 123 will with gyrator 122 interlocks, and the spinning reel 132 that is incorporated into gyrator 122 eccentric parts 124 is rotatablely moved, thereby will be drawn into by the working gas that suction pipe 116 is drawn into the low pressure of low voltage section between the fixedly volume 133 and rotation volume 134 of the fixedly spool 131 that is meshed and spinning reel 132, with its compression and by fixedly tap hole 137 discharges of spool 131.
When compressor operating, the working gas in the pressing chamber is in high pressure conditions, and makes upwards lateral bending Qu Bingxiang discharge covering 150 sides discharge pressurized gas of valve plates 141.When the pressure that is caused working gas in the pressing chamber P by reason such as quit work reduces, valve plates 141 will be blocked tap hole and prevent to discharge the phenomenon of gas to pressing chamber P adverse current.
But the reverse stop valve 140 in the prior art is when opening and closing valve, and valve plates 141 will clash into the retainer 142 or the fixing top and generation impact noise of spool 131.Noise then hides 112 to the outside radiation by top, thereby increases the operating noise of compressor and can't ensure the quiet working environment of compressor.
Summary of the invention
For make the compressor that solves in the prior art with reverse stop valve when the valve opening and closing, impact other parts by valve plates and produce the problem of noise, the object of the present invention is to provide, the function of reverse stop valve that prevents to discharge back flow of gas with compressor can realize that noise when significantly reducing reverse stop valve opens and closes is to ensure the compressor reverse stop valve of quiet working environment simultaneously.
In order to achieve the above object, be provided with the press part that is used for pressurized gas, and the compressor that is used for discharging the tap hole of compressing section compresses gas, the compressor among the present invention is made up of following structure with reverse stop valve: hinging shaft; With the hinging shaft is the valve plates of center rotation; Be connected in the parts such as elastomer that valve plates is used to regulate above-mentioned valve plates rotation, and as feature.
Wherein, hinging shaft can be fixed on the member that forms above-mentioned tap hole, also can be fixed on the valve support that is close to tap hole.When hinging shaft opens and closes at reverse stop valve, the central shaft that will rotatablely move as valve plates, and constitute by the rod shape of metal material, so that have the stiffness of the pressure that can bear pressurized gas.
Valve plates will be central shaft rotation with the hinging shaft, and the rotation by valve plates opens and closes the reverse stop valve among the present invention.That is, valve plates rotatablely moves and clings on tap hole or the valve support, nips off the pressurized gas stream thus and reverse stop valve is in closed condition.
In addition, elastomer is used to connect valve plates and valve support, or connects valve plates and valve plates rotating amount and the rotational speed with the modulating valve door-plate.Be to carry out regulatory function, elastomer reverse stop valve in the present invention needs gravitation and repulsion all to act on the valve plates when opening and closing, thereby uses member such as line spring more suitable.
According to as above structure, the pressure difference of the upper and lower sides working gas by valve plates and the weight of valve plates self will rotation movement of valve door-plates and prevented to discharge the adverse current phenomenon of working gas when opening and closing reverse stop valve among the present invention.At this moment, elastomer is with the rotating amount of mediation valve door-plate and reduce rotational speed, so the valve opening and closing noise that produces can reduce the reverse stop valve work of compressor in the prior art time.
The effect of invention: as above described in detail, the elastomeric gravitation of the present invention by being connected in valve plates and the pressure of the working gas of valve plates upper and lower sides, make valve plates open and close tap hole and prevented that compressor from discharging the adverse current of gas, have the function that the adverse current that prevents pressurized gas causes expansion-loss again.Simultaneously, when valve plates is closed, to valve plates be diminished with the area that valve support or other member contact, and the rotating amount and the rotational speed of the elastomer modulating valve door-plate by being connected in above-mentioned valve plates, can significantly reduce the impact noise that reverse stop valve when work of compressor in the prior art produces thus, and realize the quiet working environment of compressor simultaneously.In addition, by reverse stop valve of the present invention is used on the compressor, in prior art, hide and not to have the necessity that is provided with, make when volume that need the minimizing compressor to reach favourable effect for reduce discharging discharge that noise is arranged at the tap hole upside of compressor.
Description of drawings
Fig. 1 points out out the profile diagram of the scroll compressor in the prior art.
Fig. 2 points out out the longitudinal plane part expanded view of the scroll compressor in the prior art.
Fig. 3 points out out the profile diagram of the scroll compressor that includes reverse stop valve of the present invention.
Fig. 4 points out out the expansion institute diagrammatic sketch of the reverse stop valve among the present invention.
Fig. 5 points out out the longitudinal plane expanded view of the reverse stop valve of the present invention that includes the valve support that does not form section poor face.
Fig. 6 points out out the longitudinal plane expanded view of the reverse stop valve of the present invention that includes the valve support that forms section difference face.
The explanation of drawing major component:
10: casing 12: top hides
20: mechanism portion 21: stator
22: gyrator 23: running shaft
30: compression mechanical part 31: fixing spool
32: spinning reel 37: tap hole
50: discharge and hide 60: reverse stop valve of the present invention
61: valve support 61a: the inner peripheral surface of valve support
61b: the section difference face 62 of valve support: hinging shaft
63: valve plates 64: the line spring
65: noise prevents member
Embodiment
Aforesaid formation of the present invention and effect will obtain more detailed description by next example.The example that will illustrate is to include the example of valve support as constituting component below, by this example, can find easily that of the present invention constituting do not include above-mentioned valve support, and hinging shaft is fixed in member rather than the valve support that forms tap hole.Below with reference to adding the example that drawing describes the scroll compressor that has adopted the reverse stop valve among the present invention in detail.
Fig. 3 points out out the profile diagram of the scroll compressor that includes reverse stop valve of the present invention.Fig. 4 points out out the expansion institute diagrammatic sketch of the reverse stop valve among the present invention.Fig. 5 points out out the longitudinal plane expanded view of the reverse stop valve of the present invention that includes the valve support that does not form section poor face.Fig. 6 points out out the longitudinal plane expanded view of the reverse stop valve of the present invention that includes the valve support that forms section difference face.
As shown in Figure 3, the scroll compressor that includes the reverse stop valve among the present invention is made up of following structure: the inner casing 10 that forms confined space; Be arranged at the inside of casing 10, be used for the compression mechanical part 30 of compression work gas; The electric motor portion 20 of driving force is provided for compression mechanical part 30; Respectively be arranged at the upper and lower sides of electric motor portion 20, and the main frame 14 and the auxiliary frame 15 of the running shaft 23 of rotatable support electric motor portion 20.
Compression mechanical part 30 is made of fixedly spool 31 and spinning reel 32, and fixedly spool 31 is fixedly set in the upper area of casing 10 inside, and is provided with central authorities and connects the tap hole 37 that is used to discharge compression refrigerant that forms.32 relative movement of spinning reel are in fixing spool 31 and compression refrigerant.Fixedly the upside of spool 31 is provided with to discharge and hides 50, discharges and hides the inner accepting space that is formed with sealing in 50, the noise that produces when being used to reduce by tap hole 37 discharge gases.
Simultaneously, fixedly tap hole 37 upsides of spool 31 are provided with and are used to prevent the working gas of having discharged the reverse stop valve of the present invention 60 to pressing chamber P adverse current.
As shown in Figure 4, reverse stop valve 60 of the present invention includes valve support 61; Be fixed in the hinging shaft 62 of valve support 61; With hinging shaft 62 is the valve plates 63 of center rotation; Be connected in the parts such as line spring 64 of valve plates and modulating valve door-plate rotation.
The drum of 61 one-tenth hollows of valve support also is incorporated into the upper end of tap hole 37, and its associated methods is fixing more suitable for welding.Valve support 61 is used for fixing hinging shaft 62, and plays the effect that the guiding working gas flows.As Fig. 4 and shown in Figure 5, valve support 61 is generally formed by the drum of hollow.But under the situation that general hollow cylinder shape forms, the seal when closing for guarantee reverse stop valve 60 of the present invention, reverse stop valve 60 of the present invention need precision machining when making.For making reverse stop valve 60 of the present invention make upward convenient and improving its airtight degree, as shown in Figure 6, will on the hollow cylinder inner peripheral surface 61a of valve support 61, form a section poor face 61b.
The following describes the as above effect of the example of the present invention of structure, reverse stop valve 60 of the present invention is before compressor starts work, shown in the expanded view in the left circles among Fig. 5, under the state that the gravity of the gravitation of online spring 64 and valve plates 63 own wt correspondences balances each other, 2 valve plates 63 will be formed centrally 120 ° to 180 ° obtuse angle in will being with hinging shaft 62.Above-mentioned 2 valve plates 63 form the former of obtuse angles because when the pressure of the gas that waits and discharge when quitting work is higher than pressure in the pressing chamber P, the pressure of discharge gas will act on the upside of valve plates 63 and cut-off valve door-plate 63.When compressor starts is worked, the working gas of pressing chamber P mesohigh will flow into tap hole 37, shown in the expanded view in the medial side circle among Fig. 5,2 valve plates 63 will be subjected to the pressure of pressurized gas and upwards folding, thereby make 60 one-tenth open states of reverse stop valve of the present invention and discharge the working gas of high pressure to discharging covering 50.
Simultaneously, be discharged to when quitting work by compressor etc. and discharge the pressure that hides the working gas in 50 when being higher than pressing chamber P pressure inside, the gravity of the weight correspondence of valve plates 63 self, and discharge the force action that hides the pressure difference of working gas in 50 interior working gass and the pressing chamber P then launch up to reaching balance with line spring 64 gravitation with joint efforts always in 63,2 valve plates 62 of 2 valve plates.Here, the suitable elasticity coefficient k value of selection wire spring 64, shown in the expanded view in the right circles among Fig. 5,2 valve plates 63 are 180 ° of angles of center generate with hinging shaft 62, make when being close to the inner peripheral surface 61a of valve support 61, make a concerted effort to reach balance with the gravitation of line spring 64.At this moment, reverse stop valve 60 will be closed to prevent discharging back flow of gas in pressing chamber.Because valve plates 63 is less with the area that valve support 61 contacts, isochrone spring 64 can reduce the rotating amount and the rotational speed of valve plates 63, so can significantly reduce the valve opening and closing noise.Just, for realizing the airtight of reverse stop valve 60 of the present invention, valve plates 63 and valve support 61 be precision machining to greatest extent, or be adjacent to the packing ring of being close to the rubber material on valve plates 63 circumferential surfacies of valve support 61 inner peripheral surface 61a, make the interval between 2 semicircle valve plates 63 and the valve support inner peripheral surface 61a reach minimum.
But when making valve plates 63 and valve support 61, precision machining will need a lot of expenses.Shown in the expanded view in the circle among Fig. 6, if the inner peripheral surface 61a of valve support 61 forms section difference face 61b and constitutes, when situation that valve plates 63 is closed, valve plates 63 and section difference face 61b will dock and make reverse stop valve 60 airtight, thereby need not precision machining valve plates 63 and valve support 61, the making of reverse stop valve 60 of the present invention is more prone to.At this moment, can imagine valve plates 63 will clash into above-mentioned section poor face 61b and produce impact noise, but as mentioned above, when valve plates 63 is launched and close reverse stop valve 60 of the present invention, line spring 64 will reduce the rotating amount and the rotational speed of valve plates 63, make the speed of valve plates 63 contact-segment difference face 61b not too large, its impact noise also reduces immediately.Simultaneously, shown in the expanded view in the circle among Fig. 6, when the noise of being close to formations such as rubber material on the section difference face 61b of valve support 61 prevents member 65, its impact noise will further reduce.
The effect of the reverse stop valve of scroll compressor in the effect of comparison reverse stop valve 60 examples of the present invention and the prior art below.
As shown in Figure 2, the scroll compressor in the prior art is equipped with the flexible valve plates 141 of above-below direction, and opens and closes reverse stop valve according to its working state, makes valve plates 141 bump retainers 142 or fixing spool 131 top and produce impact noise.
But, as Fig. 5 and shown in Figure 6, when reverse stop valve 60 is in the present invention closed, valve plates 63 is contacted with valve support 61 or other area of members diminishes, and, significantly reduced the impact noise that produces when reverse stop valve 60 opens and closes thus by line spring 64 suitable rotating amount and the rotational speeies that reduce valve plates 63.
Claims (5)
1, a kind of reverse stop valve of compressor is being provided with the press part that is used for pressurized gas, and the compressor of tap hole that is used for discharging the gas of above-mentioned compressing section compresses, it is characterized in that compressor with reverse stop valve (60) by hinging shaft (62); With the hinging shaft is the valve plates (63) of center rotation; Be connected in valve plates and be used for the elastomer composition that modulating valve door-plate (63) rotates.
2, the reverse stop valve of compressor according to claim 1, it is characterized in that tap hole (37) forms circle, hinging shaft (62) is fixed on the valve support (61) of tap hole top along tap hole cross section diameter of a circle direction, valve support (61) becomes the drum of hollow and is incorporated into the upper end of tap hole (37), the inner peripheral surface (61a) of valve support (61), the central shaft that rotatablely moves as valve plates (63), valve plates (63) is made up of the plate that symmetry is connected in hinging shaft (62) and rotatable 2 semi-circular shapes, and elastomer then is used to connect 2 valve plates (63).
3, the reverse stop valve of compressor according to claim 1 is characterized in that described elastomer is line spring (64).
4, the reverse stop valve of compressor according to claim 1 is characterized in that the inner peripheral surface (61a) of valve support (61) is gone up a formation section difference face (61b).
5, the reverse stop valve of compressor according to claim 1 is characterized in that being adjacent to the packing ring that the rubber material is set on valve plates (63) circumferential surface of valve support (61) inner peripheral surface (61a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197139A CN100473837C (en) | 2004-06-21 | 2004-06-21 | One-way valve of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197139A CN100473837C (en) | 2004-06-21 | 2004-06-21 | One-way valve of compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712717A CN1712717A (en) | 2005-12-28 |
| CN100473837C true CN100473837C (en) | 2009-04-01 |
Family
ID=35718470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100197139A Expired - Fee Related CN100473837C (en) | 2004-06-21 | 2004-06-21 | One-way valve of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100473837C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943955A (en) * | 2017-04-06 | 2017-07-14 | 广德瑞邦涂料有限公司 | Solid material throws kettle buffer unit |
| CN112709694B (en) * | 2020-12-31 | 2022-09-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Quiet dish subassembly and compressor |
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2004
- 2004-06-21 CN CNB2004100197139A patent/CN100473837C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1712717A (en) | 2005-12-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 |