CN203892192U - Device for adjusting volume flow of compressor - Google Patents
Device for adjusting volume flow of compressor Download PDFInfo
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- CN203892192U CN203892192U CN201420206387.1U CN201420206387U CN203892192U CN 203892192 U CN203892192 U CN 203892192U CN 201420206387 U CN201420206387 U CN 201420206387U CN 203892192 U CN203892192 U CN 203892192U
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- oil tank
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- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 2
- 238000005336 cracking Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
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Abstract
The utility model discloses a device for adjusting the volume flow of a compressor, and relates to the technical field of manufacturing of the compressors. The device comprises a main machine provided with an air inlet and an air outlet, wherein the air inlet of the main machine is communicated with an air inlet filter; the air outlet of the main machine is communicated with an air inlet of a separation oil tank; an air inlet butterfly valve is arranged between the air inlet filter and the air inlet of the main machine; the air inlet butterfly valve comprises a valve seat provided with a cylindrical air inlet channel, and a valve plate which is arranged on the air inlet channel of the valve seat by a rotating shaft vertical to the air inlet channel; the rotating shaft is connected with a driving cylinder; an air inlet of the driving cylinder is communicated with a first air hole of an inverse proportion regulating valve; a second air hole of the inverse proportion regulating valve is communicated with an air outlet of the separation oil tank by a first electromagnetic valve. Compared with the prior art, the device for adjusting the volume flow of the compressor has the advantages that the valve plate of the air inlet butterfly valve can be continuously adjusted between a completely opened mode and a completely closed mode, so that the load of the compressor is adjusted to change within the range of 0-100%.
Description
Technical field
The utility model relates to Compressor Manufacturing technical field, especially a kind of device for the volume flow of helical-lobe compressor is regulated.
Background technique
The helical-lobe compressor of every kind of model is all demarcated volume flow and the rated pressure of compressor when dispatching from the factory, and user always selectes the volume flow of compressor according to the operating mode of gas consumption maximum; Yet in actual use, most is all acute variation by gas operating mode, for adapting to actual operating conditions, need to regulate the volume flow of compressor, make the volume flow of compressor and the gas consumption of actual conditions reach balance, to realize energy-conservation object.Conventional helical-lobe compressor includes the main frame that is provided with suction port and air outlet, the suction port of described main frame is connected with air intake filter by easing valve, the air outlet of described main frame is connected with separated oil tank by air pipe, on the air pipe between separated oil tank air outlet end and easing valve, is provided with solenoid valve.Conventional volume flow regulating method is that the “ Ting – that adopt to control easing valve opens " regulate, its way be arrange easing valve minimum cracking pressure and maximum closing pressure, by the opening and closing of electromagnetic valve easing valve valve; When pressure minimum that the pressure drop of separated oil tank air outlet end is opened to easing valve, from separated oil tank air outlet pressurized gas out by electromagnetic valve easing valve valve opening, air intake filter air inlet, compressor loads operation; When pressure maximum that the pressure rise of separated oil tank air outlet end opens to closed electromagnetic valve, by electromagnetic valve easing valve valve closing, air intake filter stops air inlet, compressor unloading work.During compressor unloading, only needing consuming electric power exports without any gas.When by gas load variations, compressor regulates displacement by load/unload, and electric energy during unloaded operation wastes.It is more economical that this volume flow regulative mode more approaches full load at load, if acutely energy-saving effect is poor for load variations.For what reduce compressor, use gas cost, power saving that will considering compression machine.At present, in most of helical-lobe compressors,, by adopting, Wechselstrommotor is carried out to VFC, according to the volume flow of user's reality, motor speed is carried out to frequency control of motor speed, but because big-power transducer cost is higher, and need be equipped with variable-frequency motor, the cost of complete machine will be more expensive than non-frequency compressor cost simultaneously, maintenance cost is also very high simultaneously, causes part client to bear; And the regulative mode of front a kind of volume flow to be compressor air inlet only have standard-sized sheet and full cut-off two states, and can not between regulate continuously and tolerance to change when violent energy-saving effect poor; For this reason, compressor industry practitioner is making great efforts to seek a kind of low cost of manufacture always, can make again compressor charge flow rate is adjustable, meet energy-conservation requirement technological means and method.
Model utility content
The problem that the utility model solves is to provide a kind of compressor volume flow regulator, can only be by controlling the standard-sized sheet of compressor air intake valve and the technical problem that full cut-off two states is realized to solve the adjusting of existing compressor volume flow.
In order to address the above problem, the technical solution adopted in the utility model is: this compressor volume flow regulator comprises the main frame that is provided with suction port and air outlet, the suction port of described main frame is connected with air intake filter, the air outlet of described main frame is connected with the suction port of separated oil tank, between described air intake filter and the suction port of described main frame, be provided with air inlet disk valve, described air inlet disk valve comprises and is provided with the valve seat of columniform gas-entered passageway and by be contained in the valve plate on the gas-entered passageway of described valve seat towards the rotating shaft being vertical setting with this gas-entered passageway, described rotating shaft is connected with driving cylinder, the suction port of described driving cylinder is connected with the first gas port of inverse proportion modulating valve, the second gas port of described inverse proportion modulating valve is connected with the air outlet of described separated oil tank by the first solenoid valve.
In above-mentioned compressor volume flow controlling device technological scheme, technological scheme can also be more specifically: between the air outlet of described separated oil tank and described air intake filter, be provided with two and connect unloaded atmospheric valve is housed respectively and shuts down the pipeline of atmospheric valve, the first gas control end of described unloaded atmospheric valve is connected with the second gas port of described inverse proportion modulating valve, and the second gas control end of described unloaded atmospheric valve is connected with the air outlet of described separated oil tank; The gas control end of described shutdown atmospheric valve is connected with the air outlet of described separated oil tank by the second solenoid valve.
Further, described the first solenoid valve and described the second solenoid valve are two-position three way normally closed solenoid valve, and described unloaded atmospheric valve is for often driving atmospheric valve, and described shutdown atmospheric valve is normally closed atmospheric valve.
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect: 1,, because this volume flow controlling device adopts the air inlet disk valve of having installed in the suction tude between air filter and main frame by driving the unlatching of cylinder control valve plate, closure, drive cylinder to be connected with separated oil tank by inverse proportion modulating valve; And to air inlet disk valve be provided with minimum cracking pressure and maximum closing pressure, place, air outlet pressure by separated oil tank changes to realize the adjusting that the valve plate of air inlet disk valve is rotarily opened to angle, can make the valve plate of air inlet disk valve regulate between standard-sized sheet and full cut-off, regulation range is 0%-100%.By changing butterfly valve intakeport size, the compressible flow of limit compression machine, input flow rate reduces, and output flow reduces, and the electric energy of corresponding consumption also reduces, thereby reaches the object of energy saving; 2, owing to being provided with two pipelines that unloaded atmospheric valve are housed respectively and shut down atmospheric valve between the air outlet at separated oil tank and air intake filter, in when unloaded atmospheric valve can make compressor unloaded, press and be released, it is complete that shutdown atmospheric valve releases interior pressure when compressor shutdown; Unloaded atmospheric valve and shutdown atmospheric valve make to compress eupraxic operation and shut down and safeguard.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the structural representation that the utility model embodiment's air inlet disk valve connects.
Fig. 3 is the structural representation of the utility model embodiment's air inlet disk valve.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail:
Compressor volume flow regulator as depicted in figs. 1 and 2 comprises the main frame 5 that is provided with suction port 5-1 and air outlet 5-2, the suction port 5-1 of main frame 5 is connected with air intake filter 1 by suction tude 2, the air outlet 5-2 of main frame 5 is connected with the suction port 10-1 of separated oil tank 10 by air pipe, in the suction tude 2 between air intake filter 1 and main frame 5 suction port 5-1, air inlet disk valve 6 is housed, air inlet disk valve 6 comprises the valve seat 6-4 that is provided with columniform gas-entered passageway, a rotating shaft 6-1 is housed on the gas-entered passageway of valve seat 6-4, rotating shaft 6-1 be passed in the sidewall of valve seat 6-4 and with gas-entered passageway towards being vertical setting, on rotating shaft 6-1, by bolt, circular valve plate 6-5 is housed, the two ends of rotating shaft 6-1 are contained on valve seat 6-4 by bearing respectively, one end of rotating shaft 6-1 is connected with push rod 6-3, the present embodiment is contained in respectively two piston rod ends that drive cylinder 6-2 at the two ends of push rod 6-3, two both sides that drive cylinder 6-2 to be contained in respectively air inlet dish valve 6, to facilitate two to drive cylinder 6-2 by push rod 6-3 drive valve plate 6-5 6-1 rotation around the shaft, gas-entered passageway to be closed or opened simultaneously, when valve plate 6-5 around the shaft 6-1 to the plate face of valve plate 6-5 and gas-entered passageway towards one to time, the gas-entered passageway of valve seat 6-4 is full-gear, when valve plate 6-5 around the shaft 6-1 to the plate face of valve plate 6-5 with gas-entered passageway when vertical, the gas-entered passageway of valve seat 6-4 is closed condition, as shown in Figure 3, two drive the suction port of cylinder 6-2 to be connected with the first gas port 4-1 of inverse proportion modulating valve 4 by tracheae and after leading to, the second gas port 4-2 of inverse proportion modulating valve 4 is connected with the first gas port 3-1 of the first solenoid valve 3 by tracheae, the first gas port 3-2 of the first solenoid valve 3 is connected with the air outlet 10-2 of separated oil tank 10 by tracheae, the first solenoid valve 3 is two-position three way normally closed solenoid valve, and the automatically controlled end of the first solenoid valve 3 is electrically connected to electric control cabinet (not shown).
In the suction tude 2 between the air outlet of separated oil tank 10 10-2 and air intake filter 1, be connected in parallel to two pipelines that unloaded atmospheric valve 9 are housed respectively and shut down atmospheric valve 8, unloaded atmospheric valve 9 is for often driving atmospheric valve, and shutting down atmospheric valve 8 is normally closed atmospheric valve; The first gas port 9-1 of unloaded atmospheric valve 9 is connected with the air outlet 10-2 of separated oil tank 10 by tracheae, the second gas port 9-2 of unloaded atmospheric valve 9 is connected with suction tude 2, the first gas control end 9-3 of unloaded atmospheric valve 9 is connected with the second gas port 4-2 of inverse proportion modulating valve 4 by tracheae, and the second gas control end 9-4 of unloaded atmospheric valve 9 is connected with the air outlet 10-2 of separated oil tank 10 by tracheae; The the first gas port 8-1 that shuts down atmospheric valve 8 is connected with suction tude 2 by tracheae; the the second gas port 8-2 that shuts down atmospheric valve 8 is connected with the air outlet 10-2 of separated oil tank 10 by tracheae; the gas control end 8-3 that shuts down atmospheric valve 8 is connected with the air outlet 10-2 of separated oil tank 10 by the second solenoid valve 7; the second solenoid valve 7 is two-position three way normally closed solenoid valve, and the automatically controlled end of the second solenoid valve 7 is electrically connected to electric control cabinet by wire.
During compressor start, air inlet disk valve 6 is in closed condition, and air-flow enters main frame 5 by the bypass aperture 6-6 being located on the valve seat 6-4 sidewall of air inlet disk valve 6.Now the first solenoid valve 3 must not be electric, closes; Unloaded atmospheric valve 9 is opened emptying; Simultaneously the second solenoid valve 7 must not electricity, close; Shutting down atmospheric valve 8 must not electricity, close; Inverse proportion modulating valve 4 is failure to actuate.After compressor start, the pressure in separated oil tank 10 raises gradually, presses compressor loads button while reaching the cracking pressure of air inlet disk valve 6, and compressor starts loads.Now the first solenoid valve 3 obtains electric opening, pressurized gas enters by inverse proportion modulating valve 4 and drives cylinder 6-2 from the air outlet 10-2 of separated oil tank 10, by drive cylinder 6-2 piston rod drive valve plate 6-5 around the shaft 6-1 rotate, the gas-entered passageway of valve seat 6-4 is opened.Simultaneously the second solenoid valve 7 and shut down atmospheric valve must not electricity, close.
During work, minimum cracking pressure and the maximum closing pressure of air inlet disk valve 6 are set, when pressure that user's gas consumption changes the 10-2 place, air outlet that makes separated oil tank 10 is within the scope of the minimum cracking pressure of air inlet disk valve 6 and maximum closing pressure, the state of air inlet disk valve 6 in being regulated by inverse proportion modulating valve 4, inverse proportion modulating valve 4, by the variation of 10-2 place, the air outlet pressure of separated oil tank 10, is controlled the angle of the valve plate 6-5 6-1 rotation around the shaft of air inlet disk valve 6; When the gas consumption of user side reduces, separated oil tank 10 10-2 place, air outlet pressure rise gradually, from the compression pressure of the first gas port 4-1 output of inverse proportion modulating valve 4, reduce gradually, pressurized gas is controlled and is driven the piston rod of cylinder 6-2 to bounce back gradually, make push rod 6-3 drive valve plate 6-5 around the shaft 6-1 rotate gradually plate face to valve plate 6-5 with gas-entered passageway towards vertical, gas-entered passageway is closed gradually, reduce the air inflow of air inlet disk valve 6.When the gas consumption of user side increases, separated oil tank 10 10-2 place, air outlet pressure decline gradually, from the compression pressure of inverse proportion modulating valve 4 first gas port 4-1 outputs, raise gradually, pressurized gas is controlled and is driven the piston rod of cylinder 6-2 to stretch out gradually, make push rod 6-3 drive valve plate 6-5 around the shaft 6-1 rotate gradually plate face to valve plate 6-5 with gas-entered passageway towards consistent, gas-entered passageway is opened gradually to maximum, increased the air inflow of air inlet disk valve 6.
When the compressor of user's needs carries out maintaining and maintenance, need to shut down.The first solenoid valve 3 dead electricity during shutdown, inverse proportion modulating valve 4 is failure to actuate, and the valve plate of air inlet disk valve 6 is closed completely.Unloaded atmospheric valve 9 and shut down atmospheric valve 7 and open emptying simultaneously, until that interior pressure is released is complete.
Claims (3)
1. a compressor volume flow regulator, comprise the main frame (5) that is provided with suction port (5-1) and air outlet (5-2), the suction port (5-1) of described main frame (5) is connected with air intake filter (1), the air outlet (5-2) of described main frame (5) is connected with the suction port (10-1) of separated oil tank (10), it is characterized in that: between described air intake filter (1) and the suction port (5-1) of described main frame (5), be provided with air inlet disk valve (6), described air inlet disk valve (6) comprises and is provided with the valve seat (6-4) of columniform gas-entered passageway and by be contained in the valve plate (6-5) on the gas-entered passageway of described valve seat (6-4) towards the rotating shaft being vertical setting (6-1) with this gas-entered passageway, described rotating shaft (6-1) is connected with and drives cylinder (6-2), the suction port of described driving cylinder (6-2) is connected with first gas port (4-1) of inverse proportion modulating valve (4), second gas port (4-2) of described inverse proportion modulating valve (4) is connected with the air outlet (10-2) of described separated oil tank (10) by the first solenoid valve (3).
2. compressor volume flow regulator according to claim 1, it is characterized in that: between the air outlet of described separated oil tank (10) (10-2) and described air intake filter (1), be provided with two and connect unloaded atmospheric valve (9) is housed respectively and shuts down the pipeline of atmospheric valve (8), the first gas control end (9-3) of described unloaded atmospheric valve (9) is connected with second gas port (4-2) of described inverse proportion modulating valve (4), and the second gas control end (9-4) of described unloaded atmospheric valve (9) is connected with the air outlet (10-2) of described separated oil tank (10); The gas control end of described shutdown atmospheric valve (8) is connected with the air outlet (10-2) of described separated oil tank (10) by the second solenoid valve (7).
3. compressor volume flow regulator according to claim 1 and 2; it is characterized in that: described the first solenoid valve (3) and described the second solenoid valve (7) are two-position three way normally closed solenoid valve; described unloaded atmospheric valve (9) is for often driving atmospheric valve, and described shutdown atmospheric valve (8) is normally closed atmospheric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206387.1U CN203892192U (en) | 2014-04-25 | 2014-04-25 | Device for adjusting volume flow of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206387.1U CN203892192U (en) | 2014-04-25 | 2014-04-25 | Device for adjusting volume flow of compressor |
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| Publication Number | Publication Date |
|---|---|
| CN203892192U true CN203892192U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206387.1U Expired - Fee Related CN203892192U (en) | 2014-04-25 | 2014-04-25 | Device for adjusting volume flow of compressor |
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| CN (1) | CN203892192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653462A (en) * | 2014-04-25 | 2015-05-27 | 柳州富达机械有限公司 | Volume flow adjusting device of compressor |
-
2014
- 2014-04-25 CN CN201420206387.1U patent/CN203892192U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653462A (en) * | 2014-04-25 | 2015-05-27 | 柳州富达机械有限公司 | Volume flow adjusting device of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |