CN207568835U - A kind of low noise Double screw blower - Google Patents
A kind of low noise Double screw blower Download PDFInfo
- Publication number
- CN207568835U CN207568835U CN201721233436.0U CN201721233436U CN207568835U CN 207568835 U CN207568835 U CN 207568835U CN 201721233436 U CN201721233436 U CN 201721233436U CN 207568835 U CN207568835 U CN 207568835U
- Authority
- CN
- China
- Prior art keywords
- acoustic hood
- fixedly connected
- double screw
- hood casing
- screw blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of low noise Double screw blowers, including acoustic hood casing, the top of the acoustic hood casing is equipped with air inlet, the inner upper end side of the acoustic hood casing is equipped with frequency conversion tank, the outer upper ends side of the acoustic hood casing is equipped with touch screen controller, and the bottom end of the acoustic hood casing is fixedly connected with the first beam.Exhaust fan on acoustic hood is driven by the high rotating speed of main shaft of screw blower, directly the heat in acoustic hood is discharged, propeller fan is no longer needed on acoustic hood, increase the inner space of acoustic hood, while accelerating the discharge of acoustic hood internal heat, cost is reduced again, electric consumption is saved, in the place for easily causing violent oscillatory motion and it is provided with damping block and cushion blocking, reduce Oscillation Amplitude, reduce the noise thus caused, coordinate the deadening of acoustic hood again, just there is good noise reduction effect on the whole, the device reasonable design, low noise, safety in utilization and good operation stability.
Description
Technical field
The utility model is related to screw blower technical field, specially a kind of low noise Double screw blower.
Background technology
Screw blower with a pair of of helical rotor engagement rotating operation, from air-breathing, be compressed to exhaust during, often
The volume of a piece screw channel becomes larger from small, by internal compression, is then vented to exhaust outlet again, and the mechanical energy of screw rotor is changed
For the pressure and kinetic energy of gas, compared with cfentrifugal blower, it has, and pressure ratio is high, flow is by drag effects are small, air feed is steady
The advantages that determining, but during use in the prevalence of efficiency is low, noise is high the shortcomings that, noise mainly include air inlet and
The air power noise of exhaust outlet radiation, the mechanical noise of casing and bearing radiation, vibration of foundation radiation noise, electronic
Machine noise since wind turbine generates larger noise penalty working condition, polluted living environment, thus increasingly cause people couple
The attention of fan noise, the common unit of screw blower take up a large area, and underintegration is high, and mounting area is big, assembling, dimension
Shield, inconvenient maintenance, and unit high noise, can not meet requirement of the user to noise, the propeller fan worn on acoustic hood
Occupied space is big inside acoustic hood, and needs individually power supply, increases the production cost of acoustic hood, safeguards improper hair in addition
It makes trouble therefore brings unnecessary loss to enterprise.
Utility model content
The purpose of this utility model is to provide a kind of low noise Double screw blower, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical solution：A kind of low noise Double screw blower, including
Acoustic hood casing, the top of the acoustic hood casing are equipped with air inlet, and the inner upper end side of the acoustic hood casing, which is equipped with, to be become
Frequency cabinet, the outer upper ends side of the acoustic hood casing are equipped with touch screen controller, and the bottom end of the acoustic hood casing is fixedly connected
There is the first beam, the upper end of first beam is fixedly connected with machinery bed, and the bottom side of the machinery bed is set
There is air outlet, the upper end of the machinery bed is fixedly connected with Double screw blower, and the upper end of the Double screw blower is fixed
Air filter is connected with, the side of the machinery bed is fixedly connected with vibration damper plate, and one end of the vibration damper plate passes through second
Beam is fixedly connected with machinery bed, and the upper end of the vibration damper plate is fixedly connected with permanent-magnetic variable-frequency motor, and the permanent magnetism becomes
Frequency motor is connect by driving belt with Double screw blower, and exhaust is fixedly connected on the outside of the left end of the acoustic hood casing
Slot, the left end of the acoustic hood casing are provided with exhaust fan hole, shaft coupling are fixedly connected on the left of the Double screw blower,
The left end of the shaft coupling is fixedly connected with shaft, and the left end of the shaft is fixedly connected with exhaust fan.
Preferably, the permanent-magnetic variable-frequency motor uses high-speed permanent magnetic synchronous motor, and frequency conversion is provided in the frequency conversion tank
Device.
Preferably, the air inlet of the Double screw blower is provided with import silencer, is provided at the air outlet
Outlet noise silencer, the outlet noise silencer is located on machinery bed, integrally formed with machinery bed.
Preferably, the end of the outlet noise silencer is provided with exhaust duct, the exhaust duct and outlet noise silencer it
Between be connected by elastomeric joint, relief valve and pressure gauge are provided on the exhaust duct, the side of the relief valve is provided with
Check valve, the end flange of the relief valve are connected with Outer Tube.
Compared with prior art, the beneficial effects of the utility model are：The utility model for the above-mentioned prior art in
Deficiency, provides a kind of low noise Double screw blower, the high rotating speed band of main shaft that the exhaust fan on acoustic hood passes through screw blower
It is dynamic, directly the heat in acoustic hood is discharged, no longer needs propeller fan on acoustic hood, the inside for increasing acoustic hood is empty
Between, while accelerating the discharge of acoustic hood internal heat, and cost is reduced, saved electric consumption, significantly shaken easily causing
Dynamic place is provided with damping block and cushion blocking again, reduces Oscillation Amplitude, reduces the noise thus caused, then coordinates sound insulation
The deadening of cover just has good noise reduction effect on the whole, the device reasonable design, low noise, safety in utilization and fortune
Row stability is good.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the left view of the utility model.
In figure：1 Double screw blower, 2 machinery beds, 3 vibration damper plates, 4 permanent-magnetic variable-frequency motor, 5 acoustic hood casings, 6 go out
Mouthful silencer, 7 air discharge ducts, 8 exhaust fan holes, 9 exhaust fans, 10 shaft couplings, 11 air filters, 12 air outlets, 13 exhaust ducts,
14 elastomeric joints, 15 relief valves, 16 pressure gauges, 17 check valves, 18 Outer Tubes, 19 first beams, 20 frequency converters, 21 transmission skins
Band, 22 second beams, 23 air inlets, 24 frequency conversion tanks, 25 touch screen controllers, 26 import silencers, 27 shafts.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of low noise Double screw blower, including every
Acoustic shell casing 5, the top of acoustic hood casing 5 are equipped with air inlet 23, import silencer 26 are provided at air inlet 23, and import is eliminated the noise
Device 26 contains air filtering function, is provided with outlet noise silencer 6 at air outlet 12, the end of outlet noise silencer 6 is provided with exhaust duct
Road 13 is connected between exhaust duct 13 and outlet noise silencer 6 by elastomeric joint 14, and relief valve 15 is provided on exhaust duct 13
With pressure gauge 16, the side of relief valve 15 is provided with check valve 17, and the end flange of relief valve 15 is connected with Outer Tube 18, outlet
Silencer 6 is located on machinery bed 2, integrally formed with machinery bed 2, and the inner upper end side of acoustic hood casing 5 is equipped with frequency conversion
Cabinet 24, the inside of frequency conversion tank 24 is equipped with frequency converter 20, for controlling the rotation of high-speed permanent magnetic synchronous motor, acoustic hood casing 5
Outer upper ends side is equipped with touch screen controller 25, and the bottom end of acoustic hood casing 5 is fixedly connected with the first beam 19, the first damping
The upper end of pad 19 is fixedly connected with machinery bed 2, and the bottom side of machinery bed 2 is equipped with air outlet 12, the upper end of machinery bed 2
Double screw blower 1 is fixedly connected with, the upper end of Double screw blower 1 is fixedly connected with air filter 11, machinery bed 2
Side is fixedly connected with vibration damper plate 3, and one end of vibration damper plate 3 is fixedly connected by the second beam 22 with machinery bed 2, vibration damper plate
3 upper end is fixedly connected with permanent-magnetic variable-frequency motor 4, and permanent-magnetic variable-frequency motor 4 uses high-speed permanent magnetic synchronous motor, frequency conversion tank 24
In be provided with frequency converter 20 for controlling high-speed permanent magnetic synchronous motor, permanent-magnetic variable-frequency motor 4 by driving belt 21 with it is double
Screw blower 1 connects, and air discharge duct 7, the left end setting of acoustic hood casing 5 are fixedly connected on the outside of the left end of acoustic hood casing 5
There is exhaust fan hole 8, the position in the exhaust fan hole 8 is corresponding with air discharge duct 7, and shaft coupling is fixedly connected on the left of Double screw blower
Device 10, the left end of shaft coupling 10 are fixedly connected with shaft 27, and the left end of shaft 27 is fixedly connected with exhaust fan 9.
The utility model is in the specific implementation：Power on first, the frequency converter 20 in frequency conversion tank 24 works, frequency converter 20
Driving permanent magnet frequency conversion motor 4 works, and permanent magnet frequency conversion motor 4 is driven the main shaft for driving Double screw blower 1 by driving belt 21
Rotation, main shaft and the twin-screw male rotor of Double screw blower 1 are integrated, and the main shaft other end drives female rotor by gear drive
Rotation, negative and positive screw rod does rotor engagement rotary motion in Double screw blower cavity, in addition, exhaust fan 9 passes through shaft coupling 10
It is connected with the main shaft of Double screw blower 1, is driven by the high rotating speed of the main shaft of Double screw blower 1, directly by acoustic hood casing 5
Interior heat discharge, the circulation of air are divided into two parts, first part, and air flows through import silencer 26 by air inlet 12
And air filter 11 enters Double screw blower 1, the air to pressurize by Double screw blower 1 is flowed out simultaneously by air outlet 12
And exhaust duct 13, second part are entered by outlet noise silencer 6, air enters blimp casing 5 by air inlet 23, then
Babinet is discharged from thermovent by exhaust fan 9, the heat in part acoustic hood casing 5 is taken away, achievees the purpose that heat dissipation.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of low noise Double screw blower, including acoustic hood casing（5）, it is characterised in that：The acoustic hood casing（5）'s
Top is equipped with air inlet（23）, the acoustic hood casing（5）Inner upper end side be equipped with frequency conversion tank（24）, the acoustic hood machine
Shell（5）Outer upper ends side be equipped with touch screen controller（25）, the acoustic hood casing（5）Bottom end be fixedly connected with first and subtract
Shake pad（19）, first beam（19）Upper end be fixedly connected with machinery bed（2）, the machinery bed（2）Bottom
Side is equipped with air outlet（12）, the machinery bed（2）Upper end be fixedly connected with Double screw blower（1）, the twin-screw
Air blower（1）Upper end be fixedly connected with air filter（11）, the machinery bed（2）Side be fixedly connected with vibration damper plate
（3）, the vibration damper plate（3）One end pass through the second beam（22）With machinery bed（2）It is fixedly connected, the vibration damper plate（3）
Upper end be fixedly connected with permanent-magnetic variable-frequency motor（4）, the permanent-magnetic variable-frequency motor（4）Pass through driving belt（21）With double spiral shells
Bar air blower（1）Connection, the acoustic hood casing（5）Left end on the outside of be fixedly connected with air discharge duct（7）, the acoustic hood casing
（5）Left end be provided with exhaust fan hole（8）, shaft coupling is fixedly connected on the left of the Double screw blower（10）, it is described
Axis device（10）Left end be fixedly connected with shaft（27）, the shaft（27）Left end be fixedly connected with exhaust fan（9）.
2. a kind of low noise Double screw blower according to claim 1, it is characterised in that：The permanent-magnetic variable-frequency motor
（4）Using high-speed permanent magnetic synchronous motor, the frequency conversion tank（24）In be provided with frequency converter（20）.
3. a kind of low noise Double screw blower according to claim 1, it is characterised in that：The Double screw blower
（1）Air inlet（23）Place is provided with import silencer（26）, the air outlet（12）Place is provided with outlet noise silencer（6）, institute
State outlet noise silencer（6）Positioned at machinery bed（2）On, with machinery bed（2）It is integrally formed.
4. a kind of low noise Double screw blower according to claim 3, it is characterised in that：The outlet noise silencer（6）
End be provided with exhaust duct（13）, the exhaust duct（13）With outlet noise silencer（6）Between pass through elastomeric joint（14）
It is connected, the exhaust duct（13）On be provided with relief valve（15）And pressure gauge（16）, the relief valve（15）Side setting
There is check valve（17）, the relief valve（15）End flange be connected with Outer Tube（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233436.0U CN207568835U (en) | 2017-09-25 | 2017-09-25 | A kind of low noise Double screw blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233436.0U CN207568835U (en) | 2017-09-25 | 2017-09-25 | A kind of low noise Double screw blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207568835U true CN207568835U (en) | 2018-07-03 |
Family
ID=62694567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721233436.0U Expired - Fee Related CN207568835U (en) | 2017-09-25 | 2017-09-25 | A kind of low noise Double screw blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207568835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209882A (en) * | 2018-09-19 | 2019-01-15 | 山东百惠精工机械股份有限公司 | A kind of oil-free Double screw blower unit of twin-stage |
-
2017
- 2017-09-25 CN CN201721233436.0U patent/CN207568835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209882A (en) * | 2018-09-19 | 2019-01-15 | 山东百惠精工机械股份有限公司 | A kind of oil-free Double screw blower unit of twin-stage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180703 Termination date: 20190925 |