CN204511887U - A kind of helical-lobe compressor gas damper - Google Patents
A kind of helical-lobe compressor gas damper Download PDFInfo
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- CN204511887U CN204511887U CN201520135370.6U CN201520135370U CN204511887U CN 204511887 U CN204511887 U CN 204511887U CN 201520135370 U CN201520135370 U CN 201520135370U CN 204511887 U CN204511887 U CN 204511887U
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Abstract
A kind of helical-lobe compressor gas damper, belongs to compressor vibration and noise reducing device technical field.Comprise volute housing, gas-liquid separation cylinder, eddy flow tray and draining connector, the top of volute housing has suction port, middle part forms volute runner, through hole is established in bottom, and volute housing forms air outlet at sidepiece and along the bearing of trend of volute runner; Gas-liquid separation cylinder be hollow and the ostiolate cylindrical body in top, its stretch into the die cavity of volute housing and both structures for being fixedly connected with, gas-liquid separation cylinder inwall up there is step, inwall below step processes intake chute, establish gas via-hole between adjacent intake chute, gas-liquid separation cylinder establishes draining connector mounting hole in bottom; Eddy flow tray comprises cone cap, the base of cone cap outwards overturns the formation the brim of a hat, and the brim of a hat establishes whirl hole, is bearing on step in the die cavity that eddy flow tray inserts gas-liquid separation cylinder; Draining connector and draining connector mounting hole connect.Simple and reasonable, the pressure loss is little, reduces vibration & noise.
Description
Technical field
The utility model belongs to compressor vibration and noise reducing device technical field, is specifically related to a kind of helical-lobe compressor gas damper.
Background technique
Helical-lobe compressor is a kind of novel rotary type displacement compressor, has that structure is simple, reliability is high and the series of advantages such as convenient operating maintenance, has been widely used in the industrial field such as refrigeration air-conditioner and aerodynamic force, oil, chemical industry.Helical-lobe compressor by engaging each other for a pair, the rotor of the yin, yang spiral-shaped teeth of contrary rotation direction forms, along with the rotary motion of rotor in body, compressor operating volume constantly changes due to the intrusion of tooth or disengagement, thus the volume between periodic variation rotor often pair of teeth groove, the object of air-breathing, compression and exhaust is reached with this.The operation process of helical-lobe compressor is from breathing process, and then gas is discharged by vent ports after being compressed.
Helical-lobe compressor does not arrange outlet valve, often there will be gas phenomenon in the course of the work, main manifestations is: in exhaust process, the flow area of exhaust cavity constantly changes, due to different at the gas flow not flowing through vent ports in the same time, thus inevitably produce gas phenomenon; When design conditions and actual conditions inconsistent time, in the moment that active chamber is communicated with exhaust cavity, to there will be etc. and hold compression or swelling, gas flow now also can cause gas phenomenon; When permagnetic synchronous motor frequency conversion drive helical-lobe compressor, also there is the phenomenon of gas in exhaust.Gas causes the vibration of compressor and coupled pipeline, the high frequency flutter of outlet valve, can produce strong noise thus, the reliability of reduction compressor and Economy etc.
In view of above-mentioned prior art, necessary gas amplitude of adopting an effective measure when reducing helical-lobe compressor exhaust.For this reason, the applicant has done useful design, and technological scheme described below produces under this background.
Summary of the invention
The purpose of this utility model is to provide a kind of simple and reasonable, helical-lobe compressor gas damper that the pressure loss is little, it can overcome the problem being caused vibration and noise when existing helical-lobe compressor is vented by gas, when guaranteeing helical-lobe compressor power frequency and variable frequency work, the amplitude of compressor air-discharging pulsation drops to minimum.
The purpose of this utility model reaches like this, a kind of helical-lobe compressor gas damper, it is characterized in that: comprise volute housing, gas-liquid separation cylinder, eddy flow tray and draining connector, described volute housing has suction port, closely middle part on the top of short transverse and formed on volute runner, bottom wall body around axis offers through hole, described suction port is connected with the relief opening of helical-lobe compressor, and the bearing of trend of described volute housing at sidepiece and along volute runner is formed with air outlet, described gas-liquid separation cylinder be hollow and top has the cylindrical body of opening, it to stretch in the die cavity of volute housing via described through hole and from bottom to top with volute housing structure for being fixedly connected with, gas-liquid separation cylinder short transverse near above inwall on be formed with step around circumferencial direction, inwall below this step is processed with many along the short transverse of gas-liquid separation cylinder towards the intake chute of downward-extension, gas via-hole is offered between adjacent two intake chutes, described gas via-hole is connected with the volute runner of volute housing, gas-liquid separation cylinder is provided with draining connector mounting hole in the bottom of short transverse, described eddy flow tray comprises cone cap, and the base of this cone cap outwards overturns and forms the ring-type the brim of a hat, and the described the brim of a hat offers multiple whirl hole, makes the brim of a hat be bearing on described step in the die cavity that eddy flow tray inserts gas-liquid separation cylinder, the draining connector mounting hole of described draining connector and gas-liquid separation cylinder connects.
In a specific embodiment of the present utility model, described volute housing is also embedded with flow straightening grid in suction port inside.
In another specific embodiment of the present utility model, described gas-liquid separation cylinder expands around circumferencial direction on the outer of the nearly bottom of short transverse to be established and is configured with a flange, spaced apartly on this flange is provided with multiple bolt hole; Described volute housing is spaced apart on diapire is provided with and screw that quantity equal corresponding with described bolt hole position; Screw in after bolt passing through bolt hole in corresponding screw, realize being fixedly connected with of gas-liquid separation cylinder and volute housing.
In another specific embodiment of the present utility model, many intake chutes of described gas-liquid separation cylinder distribute around cylinder axis uniform intervals.
In another specific embodiment of the present utility model, multiple whirl hole of described eddy flow tray distribute around the circumferencial direction uniform intervals of the brim of a hat.
Also have in a specific embodiment of the present utility model, described draining connector mounting hole is interior threaded hole, described draining connector is arranging with one end port that draining connector mounting hole connects the outside thread matched with described interior threaded hole, and draining connector screws with draining connector mounting hole and is connected.
More of the present utility model and in a specific embodiment, two madial walls of described whirl hole tilt along the circumferencial direction of the brim of a hat.
The utility model is owing to have employed said structure, compared with prior art, the beneficial effect had: by flow straightening grid, eddy flow tray and gas-liquid separation cylinder with the use of, effectively can cut down gas during helical-lobe compressor exhaust, reduce the noise and vibration amplitude of each pipeline in screw compressor system, and overall structure advantages of simple, the pressure loss is little.
Accompanying drawing explanation
Fig. 1 is the front view of an embodiment of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the stereogram of gas-liquid separation cylinder described in the utility model.
Fig. 5 is the stereogram of eddy flow tray described in the utility model.
In figure: 1. volute housing, 11. suction ports, 12. volute runners, 13. air outlets, 14. through holes, 15. screws; 2. gas-liquid separation cylinder, 21. steps, 22. intake chutes, 23. gas via-holes, 24. draining connector mounting holes, 25. flanges, 251. bolts hole; 3. eddy flow tray, 31. cone caps, 32. thes brim of a hat, 321. whirl hole; 4. draining connector; 5. flow straightening grid; 6. bolt.
Embodiment
Technical spirit of the present utility model and beneficial effect can be fully understood in order to make the public; claimant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but claimant is not the restriction to technological scheme to the description of embodiment, any changing in the form rather than substance according to the utility model design all should be considered as protection domain of the present utility model.
When being vented, helical-lobe compressor occurs that gas phenomenon is determined by its working principle, and be difficult in the inner eliminating gas flow pulsation phenomenon of compressor, and the most effective method of eliminating gas flow pulsation is the device installed in the source of helical-lobe compressor exhaust and relief opening for reducing gas, therefore, be installed on the relief opening of helical-lobe compressor during the utility model application.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model relates to a kind of helical-lobe compressor gas damper, comprises volute housing 1, gas-liquid separation cylinder 2, eddy flow tray 3 and draining connector 4.Described volute housing 1 has suction port 11 on the top of short transverse, and described suction port 11 inside is also embedded with flow straightening grid 5, and suction port 11 is connected with the relief opening of helical-lobe compressor.Volute housing 1 is at the nearly middle part of short transverse and around axis formation volute runner 12, volute housing 1 is formed with air outlet 13 at sidepiece and along the bearing of trend of volute runner 12, described air outlet 13 is connected with the knockout drum of screw compressor system, and volute housing 1 offers through hole 14 on the bottom wall body of short transverse.Described gas-liquid separation cylinder 2 is hollow and top has the cylindrical body of opening, and it to extend in the die cavity of volute housing 1 via described through hole 14 and from bottom to top with volute housing 1 structure for being fixedly connected with.Gas-liquid separation cylinder 2 expands around circumferencial direction on the outer of the nearly bottom of short transverse to be established and is configured with a flange 25, spaced apartly on this flange 25 is provided with multiple bolt hole 251; Described volute housing 1 is spaced apart on diapire is provided with and screw 15 that quantity equal corresponding with described bolt hole 251 position; Bolt 6 screws in corresponding screw 15 through after bolt hole 251, realizes being fixedly connected with of gas-liquid separation cylinder 2 and volute housing 1.Gas-liquid separation cylinder 2 short transverse near above inwall on be formed with step 21 around circumferencial direction, inwall below this step 21 is processed with many along the short transverse of gas-liquid separation cylinder 2 towards the intake chute 22 of downward-extension, many intake chute 22 distributes around cylinder axis uniform intervals, offer gas via-hole 23 between adjacent two intake chutes 22, described gas via-hole 23 is connected with the volute runner 12 of volute housing 1.Gas-liquid separation cylinder 2 is provided with draining connector mounting hole 24 in the bottom of short transverse, and described draining connector mounting hole 24 is interior threaded hole.Described eddy flow tray 3 comprises cone cap 31, the base of this cone cap 31 outwards overturns and forms the ring-type the brim of a hat 32, offer multiple whirl hole 321 on the described the brim of a hat 32 and around the circumferencial direction uniform intervals of the brim of a hat 32, two madial walls of whirl hole 321 tilt along the circumferencial direction of the brim of a hat 32.The brim of a hat 32 is bearing on described step 21 in the die cavity that eddy flow tray 3 inserts gas-liquid separation cylinder 2.One end port that described draining connector 4 is connecting with draining connector mounting hole 24 arranges outside thread, the internal thread of this outside thread and draining connector mounting hole 24 screws, realize being fixedly connected with of draining connector 4 and gas-liquid separation cylinder 2, the other end of draining connector 4 is also connected with the knockout drum of screw compressor system.
Please continue to refer to Fig. 1 ~ Fig. 5, working principle of the present utility model is described:
Helical-lobe compressor is discharged chaotic with liquid gas via relief opening to the suction port 11 of volute housing 1, the air-flow that grid 5 is rectified into many stock PARALLEL FLOW should be first rectified containing liquid gas, tentatively to reduce the ricing of air-flow, realize gas first heavily cuts down.The air-flow flowing through flow straightening grid 5 enters the whirl hole 321 on eddy flow tray 3, like this, on the one hand multiply air-flow can rotate blending to make flow field evenly, liquid on the other hand in air-flow is thrown to by centrifugal force on the inwall of gas-liquid separation cylinder 2, the liquid be thrown on gas-liquid separation cylinder 2 inwall flows to the bottom of gas-liquid separation cylinder 2 by many intake chutes 22 concentrated area, be collected into the gas-oil separating cylinder of screw compressor system via draining connector 4, now achieve the second air-flow that heavily gas is cut down and then enter volute runner 12 through gas via-hole 23.Flow into the swirling eddy of volute runner 12 when making centrifugal flow along volute runner 12, gas-liquid separation cylinder 2 will be entered via gas via-hole 23 after the madial wall of liquid knockout volute runner 12 remaining in air-flow, then also be entered in the knockout drum of screw compressor system through air outlet 13 by the air-flow again reducing pulsation.In addition, the inner space of volute runner 12 is comparatively large, can use simultaneously, therefore also can reduce the amplitude of gas further as buffer cavity.The utility model structural design advantages of simple, has the measure of multiple eliminating gas flow pulsation, therefore, it is possible to effectively eliminating gas flow pulsation intensity, reduces the noise and vibration of each pipeline in screw compressor system.
Claims (7)
1.
a kind of helical-lobe compressor gas damper, it is characterized in that: comprise volute housing (1), gas-liquid separation cylinder (2), eddy flow tray (3) and draining connector (4), described volute housing (1) has suction port (11) on the top of short transverse, nearly middle part and around axis formed volute runner (12), bottom wall body is offered through hole (14), described suction port (11) is connected with the relief opening of helical-lobe compressor, described volute housing (1) is formed with air outlet (13) at sidepiece and along the bearing of trend of volute runner (12), described gas-liquid separation cylinder (2) is hollow and top has the cylindrical body of opening, it to stretch in the die cavity of volute housing (1) via described through hole (14) and from bottom to top with volute housing (1) structure for being fixedly connected with, gas-liquid separation cylinder (2) short transverse near above inwall on be formed with step (21) around circumferencial direction, the inwall of this step (21) below is processed with many along the short transverse of gas-liquid separation cylinder (2) towards the intake chute (22) of downward-extension, gas via-hole (23) is offered between adjacent two intake chutes (22), described gas via-hole (23) is connected with the volute runner (12) of volute housing (1), gas-liquid separation cylinder (2) is provided with draining connector mounting hole (24) in the bottom of short transverse, described eddy flow tray (3) comprises cone cap (31), the base of this cone cap (31) outwards overturns and forms the ring-type the brim of a hat (32), the described the brim of a hat (32) offers multiple whirl hole (321), makes the brim of a hat (32) be bearing on described step (21) in the die cavity that eddy flow tray (3) inserts gas-liquid separation cylinder (2), described draining connector (4) connects with the draining connector mounting hole (24) of gas-liquid separation cylinder (2).
2.
helical-lobe compressor gas damper according to claim 1, is characterized in that described volute housing (1) is also embedded with flow straightening grid (5) in suction port (11) inside.
3.
helical-lobe compressor gas damper according to claim 1, it is characterized in that described gas-liquid separation cylinder (2) expands around circumferencial direction on the outer of the nearly bottom of short transverse to establish and be configured with a flange (25), be spaced apartly provided with multiple bolt hole (251) this flange (25) is upper; Described volute housing (1) is spaced apart on diapire is provided with and screw (15) that quantity equal corresponding with described bolt hole (251) position; Bolt (6) screws in corresponding screw (15) afterwards through bolt hole (251), realizes being fixedly connected with of gas-liquid separation cylinder (2) and volute housing (1).
4.
helical-lobe compressor gas damper according to claim 1, is characterized in that many intake chutes (22) of described gas-liquid separation cylinder (2) distribute around cylinder axis uniform intervals.
5.
helical-lobe compressor gas damper according to claim 1, is characterized in that multiple whirl hole (321) of described eddy flow tray (3) distribute around the circumferencial direction uniform intervals of the brim of a hat (32).
6.
helical-lobe compressor gas damper according to claim 1, it is characterized in that described draining connector mounting hole (24) is interior threaded hole, described draining connector (4) is arranging with one end port that draining connector mounting hole (24) connects the outside thread matched with described interior threaded hole, and draining connector (4) screws with draining connector mounting hole (24) and is connected.
7.
helical-lobe compressor gas damper according to claim 1, is characterized in that two madial walls of described whirl hole (321) tilt along the circumferencial direction of the brim of a hat (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135370.6U CN204511887U (en) | 2015-03-10 | 2015-03-10 | A kind of helical-lobe compressor gas damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135370.6U CN204511887U (en) | 2015-03-10 | 2015-03-10 | A kind of helical-lobe compressor gas damper |
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| Publication Number | Publication Date |
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| CN204511887U true CN204511887U (en) | 2015-07-29 |
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| CN201520135370.6U Active CN204511887U (en) | 2015-03-10 | 2015-03-10 | A kind of helical-lobe compressor gas damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162920A (en) * | 2018-08-30 | 2019-01-08 | 珠海格力电器股份有限公司 | Screw compressor |
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2015
- 2015-03-10 CN CN201520135370.6U patent/CN204511887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162920A (en) * | 2018-08-30 | 2019-01-08 | 珠海格力电器股份有限公司 | Screw compressor |
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