CN208595061U - A kind of water spray double-screw compressor - Google Patents
A kind of water spray double-screw compressor Download PDFInfo
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- CN208595061U CN208595061U CN201821367171.8U CN201821367171U CN208595061U CN 208595061 U CN208595061 U CN 208595061U CN 201821367171 U CN201821367171 U CN 201821367171U CN 208595061 U CN208595061 U CN 208595061U
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Abstract
The utility model discloses a kind of water spray double-screw compressors, including body and male rotor disposed in parallel and female rotor.It is provided with bearing block between air-breathing lid and suction end, thrust bearing chamber is provided in bearing block.It is respectively arranged with sun between male rotor and suction end and exhaust end and inhales sliding bearing and sun row's sliding bearing；It is respectively arranged with yin between female rotor and suction end and exhaust end and inhales sliding bearing and yin row's sliding bearing.It is respectively arranged with positive suction ball bearing between male rotor and bearing block and sun is inhaled cylindrical bearing and axially and radially located to male rotor；It is respectively arranged with negative suction ball bearing between female rotor and bearing block and yin is inhaled cylindrical bearing and axially and radially located to female rotor.Sun inhales sliding bearing, sun arranges sliding bearing, yin inhales sliding bearing and yin row's sliding bearing end part seal selects lip-type seal.Air-breathing end cap is provided between bearing block and suction end, upper part is provided with respirator.The utility model have many advantages, such as to axially and radially locate precisely, compressed air it is pure oil-free.
Description
Technical field
The utility model relates to a kind of water spray double-screw compressor more particularly to a kind of water spray lubrications and cooling twin-screw
Air compressor belongs to mechanical equipment technical field.
Background technique
Helical-lobe compressor can be divided into single screw compressor and double-screw compressor, earliest by German H.Krigar in
It proposes within 1878, until Sweden Royal Institute of Technology A.Lysholm in 1934 just establishes this technology, and beginning is industrially answered
With obtaining rapid development.
Contact situation according to medium in compression chamber with lubricating oil, double-screw compressor include oil-free double-screw compressor and
There is oily double-screw compressor.
Dry type oil-free double-screw compressor compression chamber does not spray into the coolants such as lubricating oil or water, and yin-yang rotor gap is by synchronizing
Gear control, it is ensured that yin-yang rotor does not contact during the motion, and power is transmitted to female rotor by synchronizing this wheel by male rotor.This
When, yin, yang rotor is inhaled, exhaust end uses thin oil lubricant bearing to carry out radial and axial positioning to rotor, uses oil lubrication pair
Bearing is lubricated and cools down, to ensure the high revolving speed of rotor；Yin, yang rotor is inhaled, exhaust end uses labyrinth seal or machinery
Sealing or (labyrinth+machinery) combination sealing (compression chamber end is leaned in labyrinth seal) isolation compression chamber and bearing bore, to guarantee lubricating oil
Do not enter in compression chamber, it is ensured that compressed gas it is pure oil-free；Synchromesh gear and speed increasing gear (inlet end, input shaft) use glossy
Cunning is lubricated and cools down.This compressor arrangement is simple, and the compressed gas of generation is substantially pure oil-free.But it is lacked there is also following
Point: a) yin, yang rotor inhale, the sealing structure of exhaust end, be unable to ensure lubricating oil and do not enter compression chamber, in case of mechanical seal
When failure, labyrinth seal mismachining tolerance or big service wear；Meanwhile the installation of mechanical seal to installation skilled worker skill requirement very
Height, mechanical seal failure are largely as caused by installing；It is b) directly cooling because being carried out without any medium to compressed air,
Dry type oilless (oil free) compressor one stage of compression ratio cannot be too high, and rated discharge pressure 0.7MPa must just use two stages of compression, causes to lead
Machine mechanism becomes complicated；C) compression cavity shell must use water to be cooled down, and yin, yang rotor is preferably passed through lubricating oil at center
It is cooled down, so that compressor housing and main machine structure tend to complicate.
Water jet oil-free double-screw compressor compression chamber sprays into profit of the pure water as yin, yang rotor and water lubriucated bearing etc.
Lubrication prescription, meanwhile, pure water is also used as compressed gas coolant to absorb the heat of compression generated in gas compression processes, also, absorbs
The noise generated in gas compression processes.It is used because the pure water that such oil-free double-screw compressor sprays into can be used as lubricant,
Therefore, synchromesh gear can not be set between yin, yang rotor, at this moment, compressor host structure is the simplest.The disadvantage is that yin, yang rotor
Inhale, exhaust end honours rotor using water lubrication shaft and carries out radial and axial positioning, bearing is lubricated using pure water and
Cooling, because of the limitation of water lubriucated bearing, rotor is unable to reach the high revolving speed of best performance.In addition, because using axial water lubrication
Bearing is with balancing axial thrust, and axially position precision is not high, and compressor efficiency is declined.
Utility model content
The purpose of the utility model is to provide a kind of water spray double-screw compressors, add locating shaft by increasing bearing block
It holds, improves the efficiency of compressor.
The utility model is achieved by the following technical solution.
A kind of water spray double-screw compressor, the compressor include body and be arranged in parallel in internal body male rotor and
Female rotor；The male rotor is driven with the female rotor by male rotor engaged section and engaging for female rotor engaged section, institute
Stating body includes suction end and exhaust end, and the exhaust end is provided with compression chamber, and the compression chamber is set close to suction end side
It sets；The engaged section of the male rotor and the female rotor is arranged in the exhaust end, and the engaged section is located at the compression chamber
It is interior；The engaged section is respectively male rotor engaged section and female rotor engaged section；The suction end and the exhaust end outermost point
It She You not air-breathing lid and exhaust cap；It is characterized by: being provided with bearing block, the axis between the air-breathing lid and the suction end
It holds and is provided with thrust bearing chamber in seat；It is respectively arranged with sun between the male rotor and the suction end and the exhaust end and inhales cunning
Dynamic bearing and sun row's sliding bearing；It is respectively arranged with yin between the female rotor and the suction end and the exhaust end and inhales sliding
Bearing and yin row's sliding bearing；The compression chamber is equipped with water jet, sprays into water in the male rotor engaged section from the water jet
Lubricating water film is formed with female rotor engagement section surface.
In above-mentioned technical proposal, it is respectively arranged with positive suction ball bearing between the male rotor and the bearing block and sun inhales circle
Axis of a cylinder is honoured the male rotor and is axially and radially located；Negative suction is respectively arranged between the female rotor and the bearing block
Ball bearing and yin are inhaled cylindrical bearing and are axially and radially located to the female rotor；The sun suction ball bearing, sun inhale cylindrical shaft
It holds, negative suction ball bearing and yin inhale cylindrical bearing to be arranged at the thrust bearing intracavitary.
In above-mentioned technical proposal, it is equal that the sun suction ball bearing, sun suction cylindrical bearing, negative suction ball bearing and yin inhale cylindrical bearing
Oil-lubricated bearing.
In above-mentioned technical proposal, the compressor is provided with external oil pump and the positive suction ball bearing, sun inhale cylindrical bearing,
Negative suction ball bearing is inhaled cylindrical bearing with yin and is connected to.
In above-mentioned technical proposal, the sun inhales sliding bearing, sun row sliding bearing, yin and inhales sliding bearing and yin row's sliding axle
Holding is water-lubricated slide bearing.
As further improved technical solution, it is described sun inhale sliding bearing, sun row sliding bearing, yin inhale sliding bearing and
Yin row's sliding bearing end part seal selects lip-type seal.
In above-mentioned technical proposal, it is provided with sun between the male rotor and the air-breathing lid and inhales axle envelope, the sun inhales axle envelope
Oil sealing axle sleeve is equipped between the male rotor.
In above-mentioned technical proposal, air-breathing end cap, the air-breathing end cap are provided between the bearing block and the suction end
Top is provided with respirator, so that the pressure in the air-breathing end cap is consistent with environmental pressure, it is ensured that leak into air-breathing end cap
A small amount of lubricating oil will not enter body compression chamber suction side；The suction end base hole Bu You is communicated with bearing block, so that
The a small amount of lubricating oil for leaking into air-breathing end cap can return to bearing block；The suction end portion of covering has hole to communicate with bearing block, makes
It is consistent with environmental pressure to obtain the intracavitary pressure of the thrust bearing.
The utility model has the advantages that following prominent and effect: the application of bearing block and internal ball bearing and cylindrical bearing is protected
The precise positioning of yin-yang rotor axially and radially is demonstrate,proved；Air-breathing end cap and its respirator enable to pressure balance simultaneously on bearing block
It prevents oil leak into compression chamber, ensure that compressed air is oil-free.
Detailed description of the invention
Fig. 1 is double-screw compressor structural schematic diagram of spraying water involved in the utility model.
In figure: 1-male rotor；2-female rotors；Ratcheting section of female rotor of ratcheting section: 4-of 3-male rotors；5-air-breathing lids；
6-bearing blocks；7-air-breathing end caps；8-positive suction ball bearings；9-sun inhale cylindrical bearing；10-negative suction ball bearings；11-yin inhale circle
Axis of a cylinder is held；12-bodies；13-exhaust caps；14-oil sealing axle sleeves；15-sun inhale sliding bearing；16-yin inhale sliding bearing；
17-sun row's sliding bearings；18-yin row's sliding bearings；19-suction ends；20-exhaust ends；21-sun inhale axle envelope.
Specific embodiment
Specific embodiment of the present utility model and the course of work are further described with reference to the accompanying drawing.
The positional terms such as the upper, lower, left, right, front and rear in present specification be positional relationship based on the figure and
It establishes.Attached drawing is different, then corresponding positional relationship is also possible to change therewith, therefore cannot be interpreted as with this to protection model
The restriction enclosed.
As shown in Figure 1, a kind of water spray double-screw compressor, turns including body 12 and the sun being arranged in parallel in inside body 12
Son 1 and female rotor.Body 12 includes suction end 19 and exhaust end 20, and male rotor 1 and female rotor 2 run through suction end 19 and exhaust end
20.Compression chamber is provided in exhaust end 20, and compression chamber is arranged close to 19 side of suction end.The engagement of male rotor 1 and female rotor 2
Section is arranged in exhaust end 20, and is located in compression chamber, and engaged section is respectively male rotor engaged section 3 and female rotor engaged section 4.Sun turns
Son 1 extends to outside in suction end 19, is connected to motor, as main shaft.Male rotor 1 is nibbled with female rotor 2 by male rotor
The engagement for closing section 3 and female rotor engaged section 4 is driven.
It is equipped with water jet in compression chamber, sprays into water in 4 surface shape of male rotor engaged section 3 and female rotor engaged section from water jet
At lubricating water film, meanwhile, between yin-yang rotor surface, yin-yang rotor and compression chamber and compression resonator end surface forms sealing water
Film, and mix well with air into air mist mixture.The water of penetrating also plays cooling effect to female rotor 2 and male rotor 1.
It is respectively arranged with sun between male rotor 1 and suction end 19 and exhaust end 20 and inhales sliding bearing 15 and sun row's sliding bearing
17.It is respectively arranged with yin between female rotor 2 and suction end 19 and exhaust end 20 and inhales sliding bearing 16 and yin row's sliding bearing 18.Sun
Inhaling sliding bearing 15, sun row sliding bearing 17, yin and inhaling sliding bearing 16 and yin row's sliding bearing 18 is water-lubricated slide bearing,
Radial force for Yin Yang balancing rotor.Sun inhales sliding bearing 15, sun arranges sliding bearing 17, yin inhales sliding bearing 16 and yin row's cunning
18 end part seal of dynamic bearing selects lip-type seal.It ensures that lubricating oil will not enter body compression chamber, ensure that no oil pressure
The quality of contracting gas.
Suction end 19 and 20 outermost of exhaust end are respectively equipped with air-breathing lid 5 and exhaust cap 13.Air-breathing lid 5 and suction end 19 it
Between be provided with bearing block 6, thrust bearing chamber is provided in bearing block 6.
It is respectively arranged with positive suction ball bearing 8 between male rotor 1 and bearing block 6 and sun is inhaled cylindrical bearing 9 and carried out to male rotor 1
It axially and radially locates.It is respectively arranged with negative suction ball bearing 10 between female rotor 2 and bearing block 6 and yin inhales 11 pairs of yin of cylindrical bearing
Rotor 2 is axially and radially located.Positive suction ball bearing 8, sun inhale cylindrical bearing 9, negative suction ball bearing 10 and yin and inhale cylindrical bearing
11 to be arranged at thrust bearing intracavitary.Positive suction ball bearing 8, sun inhale cylindrical bearing 9, negative suction ball bearing 10 and yin and inhale cylindrical bearing 11
It is oil-lubricated bearing group, external oil pump can be set in compressor and positive suction ball bearing 8, sun inhale cylindrical bearing 9, negative suction ball bearing
10, which inhale cylindrical bearing 11 with yin, is connected to.Oil-lubricated bearing group can balancing axial thrust and a part of radial force, while solving to spray water
The axially and radially precise positioning problem of formula oil-free double-screw compressor yin-yang rotor, especially axial precise positioning.Axial essence
Quasi- orientation problem is guaranteed that radial precise positioning problem is also to be guaranteed by oil-lubricated bearing group, water lubrication diameter by oil-lubricated bearing group
Radial equilibrium power is mainly provided to sliding bearing.The gap of the radial and axial bearing of water lubrication is all bigger, can not precise positioning.
It is provided with sun between male rotor 1 and air-breathing lid 5 and inhales axle envelope 21, sun, which is inhaled, is equipped with oil sealing between axle envelope 21 and male rotor 1
Axle sleeve 14.
Air-breathing end cap 7 is provided between bearing block 6 and suction end 19,7 top of air-breathing end cap is provided with respirator and environment
Connection, so that the pressure in air-breathing end cap 7 is consistent with environmental pressure, it is ensured that a small amount of lubricating oil leaked into air-breathing end cap will not
Into the compression chamber suction side of body 12.7 bottom of air-breathing end cap has hole to communicate with bearing block 6, so that leaking into air-breathing end cap 7
A small amount of lubricating oil can return to bearing block 6.7 top of air-breathing end cap has hole to communicate with bearing block 6 simultaneously, so that thrust bearing is intracavitary
Pressure it is consistent with environmental pressure.
The setting of bearing block 6 and its thrust bearing chamber, and be provided between bearing block 6 and the suction end 19 of body 12
Air-breathing end cap 7 solves the problems, such as the lubricating oil in bearing block 6 possibly into body suction end 19, it is ensured that compressed gas is pure
Net oil free compression gas.Oil-lubricated bearing group and body compression chamber has been isolated in the setting of air-breathing end cap 7 and respirator, in addition axis
On lip-type seal, it is ensured that lubricating oil will not enter body compression chamber, ensure that the quality of oil free compression gas.
Using the scheme of oil-lubricated bearing group and water-lubricated slide bearing, solving water jet oil-free double-screw compressor can
It runs at high speed within the scope of full blast, it is ensured that compressor is energy-efficient product.Oil-lubricated bearing group is technology maturation
Bearing may operate within the relatively high range of speeds, and the reliability service rotating ratio oil-lubricated bearing of water lubriucated bearing is low
Very much.In the present invention, the positioning of yin-yang rotor is guaranteed by oil-lubricated bearing group, the water-lubricated slide bearing at suction and discharge end
Mainly it is to provide radial equilibrium power, therefore, the compressor running speed of the structure can make to compress as oil spout dual-screw-stem machine
Machine may operate within the scope of optimum efficiency.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of water spray double-screw compressor, the compressor includes body (12) and the sun for being arranged in parallel in body (12) inside
Rotor (1) and female rotor (2)；The male rotor (1) is nibbled with the female rotor (2) by male rotor engaged section (3) and female rotor
The engagement for closing section (4) is driven, and the body (12) includes suction end (19) and exhaust end (20), and the exhaust end (20) sets
It is equipped with compression chamber, and the compression chamber is arranged close to suction end (19) side；The male rotor (1) and the female rotor (2)
Engaged section is arranged in the exhaust end (20), and the engaged section is located in the compression chamber；The engaged section is respectively that sun turns
Sub- engaged section (3) and female rotor engaged section (4)；The suction end (19) and the exhaust end (20) outermost are respectively equipped with air-breathing
Cover (5) and exhaust cap (13)；It is characterized by: being provided with bearing block between the air-breathing lid (5) and the suction end (19)
(6), thrust bearing chamber is provided in the bearing block (6)；The male rotor (1) and the suction end (19) and the exhaust end
(20) it is respectively arranged with sun between and inhales sliding bearing (15) and sun row sliding bearing (17)；The female rotor (2) and the air-breathing
It is respectively arranged with yin between end (19) and the exhaust end (20) and inhales sliding bearing (16) and yin row sliding bearing (18)；The pressure
Contracting chamber is equipped with water jet.
2. a kind of water spray double-screw compressor according to claim 1, it is characterised in that: the male rotor (1) with it is described
It is respectively arranged with positive suction ball bearing (8) between bearing block (6) and sun is inhaled cylindrical bearing (9) and carried out axially to the male rotor (1)
And radial positioning；It is respectively arranged with negative suction ball bearing (10) between the female rotor (2) and the bearing block (6) and yin inhales cylinder
Bearing (11) axially and radially locates the female rotor (2)；It is described sun suction ball bearing (8), sun inhale cylindrical bearing (9),
It is intracavitary that negative suction ball bearing (10) and yin suction cylindrical bearing (11) are arranged at the thrust bearing.
3. a kind of water spray double-screw compressor according to claim 1, it is characterised in that: the sun inhales sliding bearing
(15), sun row sliding bearing (17), yin suction sliding bearing (16) and yin row sliding bearing (18) are water-lubricated slide bearing.
4. a kind of water spray double-screw compressor according to claim 3, it is characterised in that: the sun inhales sliding bearing
(15), sun row sliding bearing (17), yin suction sliding bearing (16) and yin row's sliding bearing (18) end part seal select lip type close
Envelope.
5. a kind of water spray double-screw compressor according to claim 2, it is characterised in that: the sun suction ball bearing (8), sun
Inhaling cylindrical bearing (9), negative suction ball bearing (10) and yin suction cylindrical bearing (11) is oil-lubricated bearing.
6. a kind of water spray double-screw compressor according to claim 5, it is characterised in that: the compressor is provided with external
Oil pump inhales cylindrical bearing (9), negative suction ball bearing (10) and yin with the positive suction ball bearing (8), sun and inhales cylindrical bearing (11) and be connected to.
7. a kind of water spray double-screw compressor according to claim 1, it is characterised in that: the male rotor (1) and described
It is provided with sun between air-breathing lid (5) and inhales axle envelope (21), the sun, which is inhaled, is equipped with oil seal shaft between axle envelope (21) and the male rotor (1)
It covers (14).
8. a kind of water spray double-screw compressor according to claim 1, it is characterised in that: the bearing block (6) with it is described
It is provided between suction end (19) air-breathing end cap (7), respirator is arranged in air-breathing end cap (7) top, so that the suction end
The pressure covered in (7) is consistent with environmental pressure；Air-breathing end cap (7) bottom has hole to communicate with bearing block (6), so that leaking into
A small amount of lubricating oil of air-breathing end cap (7) can return to bearing block (6)；Hole and bearing block (6) phase are arranged at air-breathing end cap (7) top
It is logical so that the thrust bearing it is intracavitary pressure it is consistent with environmental pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367171.8U CN208595061U (en) | 2018-08-23 | 2018-08-23 | A kind of water spray double-screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367171.8U CN208595061U (en) | 2018-08-23 | 2018-08-23 | A kind of water spray double-screw compressor |
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| Publication Number | Publication Date |
|---|---|
| CN208595061U true CN208595061U (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821367171.8U Active CN208595061U (en) | 2018-08-23 | 2018-08-23 | A kind of water spray double-screw compressor |
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| Country | Link |
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| CN (1) | CN208595061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757453A (en) * | 2018-08-23 | 2018-11-06 | 中山市捷科能机电科技有限公司 | A kind of water spray double-screw compressor |
-
2018
- 2018-08-23 CN CN201821367171.8U patent/CN208595061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757453A (en) * | 2018-08-23 | 2018-11-06 | 中山市捷科能机电科技有限公司 | A kind of water spray double-screw compressor |
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