CN110285054A - A kind of water lubrication screw air compressor - Google Patents
A kind of water lubrication screw air compressor Download PDFInfo
- Publication number
- CN110285054A CN110285054A CN201910518015.XA CN201910518015A CN110285054A CN 110285054 A CN110285054 A CN 110285054A CN 201910518015 A CN201910518015 A CN 201910518015A CN 110285054 A CN110285054 A CN 110285054A
- Authority
- CN
- China
- Prior art keywords
- shell
- shaft
- air compressor
- rotor
- bearing
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000005461 lubrication Methods 0.000 title claims abstract description 18
- 238000012856 packing Methods 0.000 claims description 14
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention discloses a kind of water lubrication screw air compressor, including motor connecting base, the end cap of seat connection is connected to motor and the shell that the inside that seat is connected is cavity is connected to motor, the enclosure interior is axially arranged with the rotor with rack gear, the rotor includes swivel and shaft, the shaft surface is equipped with spiral groove, the spiral groove is opposite with the rack gear direction of rotation of the swivel, bearing is equipped between the shaft and the shell, mechanical seal is additionally provided between the bearing and the shell, first axle envelope of bearing side, the other side is equipped with the second axle envelope, chamber is equipped between first axle envelope and the mechanical seal, the bottom end of the chamber is equipped with the drainage hole communicated with the outside world, water outlet is arranged in the stronger motor connecting base side of stress-bearing capability, it ensure that the safety of equipment, even if there is water leakage, It can be discharged, can be found in time by the drainage hole of chamber, rotor will not relatively rotate between swivel and shaft in rotation.
Description
Technical field
The present invention relates to air compressor device technical field, specially a kind of water lubrication screw air compressor.
Background technique
In the industrial production, air compressor (also known as air compressor machine) is a kind of widely used device, it is to add atmosphere
It is pressed into a kind of engineering equipment of high pressure gas.
Air compressor includes screw air compressor, and existing major part air compressor is carried out cold using oil liquid
But, but certain pollution will cause using oil liquid, there is also the air compressors cooling using water lubrication for existing market, still
Its water tightness is not ideal enough, and when just there is water leakage, can not find situation in time, and take appropriate measures, lead
Water is caused to reveal increased flow capacity, water flows into the equipment such as bearing, causes serious harm to equipment, improve production cost indirectly, existing
Rotor rotate pressurization when, be easy to cause shaft and swivel between produce relative rotation, equipment is easy to appear failure, existing
The gas outlet of air compressor is all disposed within the rear end of shell, and since the air pressure of gas outlet is bigger, the rear end cap of shell is relatively thin,
Anti-pressure ability is weaker, and when air pressure is sufficiently large, its unbearable pressure of rear end cap will cause equipment damage and safety accident.
Us are promoted to improve and invent.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of water lubrication screw air compressors.
To achieve the above object, the technical solution of the invention is as follows: a kind of water lubrication screw air compressor, including
End cap and the shell that the inside that seat is connected is cavity, institute is connected to motor that seat connects is connected to motor in motor connecting base
It states enclosure interior and is axially arranged with the rotor with rack gear, the rotor includes that swivel and shaft, the shaft are sheathed on shaft table
Face, the shaft surface are equipped with spiral groove, and the rack gear direction of rotation of the spiral groove and the swivel is on the contrary, the shaft
It is equipped with bearing between the shell, mechanical seal is additionally provided between the bearing and the shell, the mechanical seal is used for
Prevent flowing material in shell from entering bearing, the bearing is equipped with close to the side of the mechanical seal and is sheathed on the shaft
First axle envelope, the other side are equipped with the second axle envelope for being sheathed on the shaft, and first axle envelope is for preventing in the bearing
Lubricating oil enters the mechanical seal, and second axle envelope is for preventing dust from entering bearing, first axle envelope and the machine
Chamber is equipped between tool sealing, the bottom end of the chamber is equipped with the drainage hole communicated with the outside world, and the surface of shell is equipped with and institute
The air inlet that housing hollow communicates is stated, side is equipped with the water inlet communicated with the housing hollow, the motor connecting base side
Equipped with gas outlet, the gas outlet is communicated with the housing hollow.
Preferably, the bottom of the motor connecting base and the bottom of the shell are equipped with lifting hook device, the drag hook dress
It sets and is fixedly connected including capping and drag hook, the capping with the drag hook, can be covered the drag hook by described from the electricity
The bottom of machine attachment base or the bottom of the shell promote and pull out.
Preferably, the mechanical seal includes stationary seal ring and rotary packing ring, the stationary seal ring and the rotary packing ring
It fits, the rotary packing ring is connect by spring with the shaft, and the shaft can drive the rotary packing ring to rotate.
Preferably, wear-resistant coating is equipped between first axle envelope and the shaft, the wear-resistant coating is covered in described
Roller end surface.
Preferably, the rotor includes male rotor and female rotor, and the male rotor is identical with the female rotor structure, and logical
Cross rack gear engagement connection.
Preferably, the shell is made of stainless steel material.
Preferably, the swivel is made of PEEK material.
Preferably, the turn trough size of the male rotor and female rotor is 7:5.
Preferably, the surface of shell is equipped with through-hole.
Preferably, gasket is equipped between the shell and the capping.
By using above-mentioned technical solution, the beneficial effects of the present invention are: by between mechanical seal and the first axle envelope
Chamber and drainage hole, even if there is water leakage, can be discharged by the drainage hole of chamber so that leakproofness is stronger, can be timely
It was found that and taking corresponding measure；Make rotor in rotation by spiral groove, opposite turn will not occur between swivel and shaft
It is dynamic, water outlet is arranged in the stronger motor connecting base side of stress-bearing capability, ensure that the safety of human body and equipment, pass through drag hook
Pulling out can be convenient check the replacement of lubricating oil is filled it up with and facilitated to lubricating oil whether in bearing.
Detailed description of the invention
Fig. 1 is air compressor structure schematic diagram of the present invention；
Fig. 2 is air compressor explosive decomposition structural schematic diagram of the present invention；
Fig. 3 is motor connecting base structural schematic diagram of the present invention；
Fig. 4 is inventive shell structural schematic diagram；
Fig. 5 is rotor structure schematic diagram of the present invention；
Fig. 6 is pivot structure schematic diagram of the present invention；
Main appended drawing reference explanation: 1 motor connecting base, 2 end caps, 3 shells, 4 rotors 41 swivel, 42 shafts, 5 bearings, 6 machines
Tool sealing, 61 rotary packing rings, 62 stationary seal rings, 7 springs, 8 first axle envelopes, 9 second axle envelopes, 10 spiral grooves, 11 lifting hook devices,
111 cappings, 112 drag hooks, 12 gaskets, 13 female rotors, 14 male rotors, 15 air inlets, 16 water inlets, 17 through-holes, 18 wear-resistant coatings,
19 gas outlets, 20 drainage holes, 21 chambers.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in figs 1 to 6, the present invention is a kind of water lubrication screw air compressor, including motor connecting base 1 and electricity
The end cap 22 and the shell 3 that the inside that seat 1 is connected is cavity is connected to motor that machine attachment base 1 connects, inside the shell 3
It is axially arranged with the rotor 4 with rack gear, the rotor 4 includes that swivel 41 and shaft 42, the shaft 42 are sheathed on 42 table of shaft
Face, 42 surface of shaft are equipped with spiral groove 10, the rack gear direction of rotation of the spiral groove 10 and the swivel 41 on the contrary,
It is equipped with bearing 5 between the shaft 42 and the shell 3, mechanical seal 6, institute are additionally provided between the bearing 5 and the shell 3
Mechanical seal 6 is stated for preventing flowing material in shell 3 from entering bearing 5, the bearing 5 is close to the side of the mechanical seal 6
Equipped with the first axle envelope 8 for being sheathed on the shaft 42, the other side, which is equipped with, is sheathed on the second axle envelope 9 of the shaft 42, and described the
One axle envelope 8 is used to prevent the lubricating oil in the bearing 5 from entering the mechanical seal 6, and second axle envelope 9 is for preventing dust
Into bearing 5, be equipped with chamber 21 between first axle envelope 8 and the mechanical seal 6, the bottom end of the chamber 21 be equipped with it is outer
The drainage hole 20 that boundary communicates, 3 surface of shell are equipped with the air inlet 15 communicated with 3 cavity of shell, and side is equipped with and institute
State the water inlet 16 that 3 cavity of shell communicates, 1 side of the motor connecting base is equipped with gas outlet 19, the gas outlet 19 with it is described
3 cavity of shell communicates；Atmosphere enters in shell 3 from air inlet 15, and the rotation of rotor 4 pressurizes to atmosphere, while water is from water inlet
Mouthfuls 16 flow into shells 3, have the function that cooling and lubricate and filling 4 gap of rotor, and the gas after pressurization is from gas outlet 19
Outflow, in rotation, shaft 42 and swivel 41 rotate rotor 4 simultaneously, spiral groove 10 with turn 41 direction of rotation on the contrary, making
Must turn will not relatively rotate between 41 and shaft 42, by the chamber 21 between mechanical seal 6 and the first axle envelope 8 and arrange
Water hole 20, even if there is water leakage, can be discharged by the drainage hole 20 of chamber 21, can be found in time so that leakproofness is stronger,
And corresponding measure is taken, by water outlet setting in stronger 1 side of motor connecting base of stress-bearing capability, it ensure that human body and equipment
Safety can be convenient check the replacement of lubricating oil is filled it up with and facilitated to lubricating oil whether in bearing 5 by the pull-out of drag hook 112.
As shown in Fig. 2, the bottom of the motor connecting base 1 and the bottom of the shell 3 are equipped with lifting hook device 11, it is described
Lifting hook device 11 includes capping 111 and drag hook 112, and the capping 111 is fixedly connected with the drag hook 112, can pass through the envelope
The drag hook 112 is promoted and is pulled out from the bottom of the motor connecting base 1 or the bottom of the shell 3 by lid 111；In past bearing
When lubricating oil being added in 5, drag hook 112 is pulled out by crawl capping 111, when drop has lubricating oil when 112 surface of drag hook, indicates axis
It holds the lubricating oil in 5 and reaches saturation, can be convenient and check the replacement of lubricating oil is filled it up with and facilitated to lubricating oil whether in bearing 5.
As shown in Fig. 2, the mechanical seal 6 includes stationary seal ring 62 and rotary packing ring 61, the stationary seal ring 62 and institute
It states rotary packing ring 61 to fit, the rotary packing ring 61 is connect by spring 7 with the shaft 42, and the shaft 42 can drive
The rotary packing ring 61 rotates；It is fitted by rotary packing ring 61 and stationary seal ring 62, forms mechanical seal 6, leakproofness is preferable.
As shown in fig. 6, being equipped with wear-resistant coating 18, the wear-resistant coating 18 between first axle envelope 8 and the shaft 42
It is covered in 42 end surface of shaft；Improve the smoothness of shaft 42 and 8 contact surface of the first axle envelope and the hardness of shaft 42.
As shown in Fig. 2, the rotor 4 includes male rotor 14 and female rotor 13, the male rotor 14 and the female rotor 13
Structure is identical, and is engaged and connected by rack gear；By male rotor 14 and the intermeshing rotation of female rotor 13, atmosphere is added
Pressure.
The shell 3 is made of stainless steel material；So that shell 3 is not easy to get rusty.
The swivel 41 is made of PEEK material；PEEK material thermal resistance is strong, and insulating properties is stablized.
As shown in Fig. 2, the turn trough size size of the male rotor 14 and female rotor 13 is 7:5；So that male rotor 14
With female rotor 13 when rotating pressurization, pressure effect is more preferable.
As shown in figure 4,3 surface of shell is equipped with through-hole 17；Convenient for the heat dissipation in shell 3.
As shown in Fig. 2, being equipped with gasket 12 between the shell 3 and the capping 111；To prevent capping 111 and shell 3
Between be under pressure, burn into and pipeline expand with heat and contract with cold leakage naturally.
Above-described, only presently preferred embodiments of the present invention cannot limit the scope of the invention, all Yi Benfa
Equivalent change made by bright claim and decoration, should still belong in the range of the present invention covers.
Claims (10)
1. a kind of water lubrication screw air compressor, including motor connecting base, be connected to motor seat connection end cap and with
The inside that motor connecting base is connected is the shell of cavity, it is characterised in that: the enclosure interior is axially arranged with rack gear
Rotor, the rotor include swivel and shaft, and the shaft is sheathed on shaft surface, and the shaft surface is equipped with spiral groove,
The rack gear direction of rotation of the spiral groove and the swivel on the contrary, between the shaft and the shell be equipped with bearing, it is described
Mechanical seal is additionally provided between bearing and the shell, the mechanical seal is used to prevent flowing material in shell from entering bearing,
The bearing is equipped with the first axle envelope for being sheathed on the shaft close to the side of the mechanical seal, and the other side is equipped with and is sheathed on institute
The second axle envelope of shaft is stated, first axle envelope is used to prevent the lubricating oil in the bearing from entering the mechanical seal, described
Second axle envelope is equipped with chamber, the chamber for preventing dust from entering bearing between first axle envelope and the mechanical seal
Bottom end be equipped with the drainage hole that communicates with the outside world, the surface of shell is equipped with the air inlet communicated with the housing hollow, side
Equipped with the water inlet communicated with the housing hollow, the motor connecting base side be equipped with gas outlet, the gas outlet with it is described
Housing hollow communicates.
2. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the motor connecting base
Bottom and the bottom of the shell be equipped with lifting hook device, the lifting hook device includes capping and drag hook, the capping and institute
Drag hook is stated to be fixedly connected, can by the capping by the drag hook from the bottom of the motor connecting base or the bottom of the shell
It promotes and pulls out.
3. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the mechanical seal packet
Include stationary seal ring and rotary packing ring, the stationary seal ring fits with the rotary packing ring, the rotary packing ring by spring with
The shaft connection, and the shaft can drive the rotary packing ring to rotate.
4. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: first axle envelope and
Wear-resistant coating is equipped between the shaft, the wear-resistant coating is covered in the roller end surface.
5. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the rotor includes sun
Rotor and female rotor, the male rotor is identical with the female rotor structure, and is engaged and connected by rack gear.
6. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the shell is by stainless
Steel material is made.
7. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the swivel is by PEEK
Material is made.
8. a kind of water lubrication screw air compressor according to claim 5, it is characterised in that: the male rotor and institute
The turn trough size for stating female rotor is 7:5.
9. a kind of water lubrication screw air compressor according to claim 1, it is characterised in that: the surface of shell is set
There is through-hole.
10. a kind of water lubrication screw air compressor according to claim 2, it is characterised in that: the shell and institute
It states and is equipped with gasket between capping.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518015.XA CN110285054A (en) | 2019-06-14 | 2019-06-14 | A kind of water lubrication screw air compressor |
| PCT/CN2020/076596 WO2020248623A1 (en) | 2019-06-14 | 2020-02-25 | Water-lubricated screw air compressor |
| ZA2020/05474A ZA202005474B (en) | 2019-06-14 | 2020-09-02 | Hydro lubricated screw type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518015.XA CN110285054A (en) | 2019-06-14 | 2019-06-14 | A kind of water lubrication screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285054A true CN110285054A (en) | 2019-09-27 |
Family
ID=68003817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910518015.XA Pending CN110285054A (en) | 2019-06-14 | 2019-06-14 | A kind of water lubrication screw air compressor |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110285054A (en) |
| WO (1) | WO2020248623A1 (en) |
| ZA (1) | ZA202005474B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520321A (en) * | 2020-05-15 | 2020-08-11 | 丁彪 | Mechanical seal chemical pump and use method thereof |
| WO2020248623A1 (en) * | 2019-06-14 | 2020-12-17 | 泉州市华德机电设备有限公司 | Water-lubricated screw air compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163354A (en) * | 1996-03-27 | 1997-10-29 | 北越工业株式会社 | Shaft structure of screw rotor for screw fluid machinery |
| CN1308002A (en) * | 2001-01-19 | 2001-08-15 | 四川明达船用密封有限公司 | Stern shaft seal gland for high speed ship |
| CN201982294U (en) * | 2011-01-30 | 2011-09-21 | 天津市三木泵业有限公司 | Rotor pump |
| CN202900665U (en) * | 2012-11-09 | 2013-04-24 | 上海齐耀螺杆机械有限公司 | Oil-water mixed lubrication type shaft seal device for spray cooling screw compressor |
| CN107654377A (en) * | 2017-09-28 | 2018-02-02 | 上海齐耀螺杆机械有限公司 | The gland seal device of oil free screw machine |
| CN208651168U (en) * | 2018-07-07 | 2019-03-26 | 东莞市山田精密机械有限公司 | A kind of oil-free water lubrication screw air compressor |
| CN210686302U (en) * | 2019-06-14 | 2020-06-05 | 泉州市华德机电设备有限公司 | Water lubrication screw type air compressor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1018583A3 (en) * | 2009-06-10 | 2011-04-05 | Atlas Copco Airpower Nv | |
| TWM421987U (en) * | 2011-07-25 | 2012-02-01 | Fu Sheng Ind Co Ltd | Spray-type double-screw air compressor |
| JP5775016B2 (en) * | 2012-03-14 | 2015-09-09 | 株式会社日立産機システム | Screw compressor |
| CN103939347A (en) * | 2013-01-18 | 2014-07-23 | 苏州京程科技有限责任公司 | Mechanical sealing device for water-lubricated single-screw oil-free air compressor |
| 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 |
| CN110285054A (en) * | 2019-06-14 | 2019-09-27 | 泉州市华德机电设备有限公司 | A kind of water lubrication screw air compressor |
-
2019
- 2019-06-14 CN CN201910518015.XA patent/CN110285054A/en active Pending
-
2020
- 2020-02-25 WO PCT/CN2020/076596 patent/WO2020248623A1/en active Application Filing
- 2020-09-02 ZA ZA2020/05474A patent/ZA202005474B/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163354A (en) * | 1996-03-27 | 1997-10-29 | 北越工业株式会社 | Shaft structure of screw rotor for screw fluid machinery |
| CN1308002A (en) * | 2001-01-19 | 2001-08-15 | 四川明达船用密封有限公司 | Stern shaft seal gland for high speed ship |
| CN201982294U (en) * | 2011-01-30 | 2011-09-21 | 天津市三木泵业有限公司 | Rotor pump |
| CN202900665U (en) * | 2012-11-09 | 2013-04-24 | 上海齐耀螺杆机械有限公司 | Oil-water mixed lubrication type shaft seal device for spray cooling screw compressor |
| CN107654377A (en) * | 2017-09-28 | 2018-02-02 | 上海齐耀螺杆机械有限公司 | The gland seal device of oil free screw machine |
| CN208651168U (en) * | 2018-07-07 | 2019-03-26 | 东莞市山田精密机械有限公司 | A kind of oil-free water lubrication screw air compressor |
| CN210686302U (en) * | 2019-06-14 | 2020-06-05 | 泉州市华德机电设备有限公司 | Water lubrication screw type air compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248623A1 (en) * | 2019-06-14 | 2020-12-17 | 泉州市华德机电设备有限公司 | Water-lubricated screw air compressor |
| CN111520321A (en) * | 2020-05-15 | 2020-08-11 | 丁彪 | Mechanical seal chemical pump and use method thereof |
| CN111520321B (en) * | 2020-05-15 | 2022-09-13 | 大连宏亚泵业有限公司 | Mechanical seal chemical pump and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020248623A1 (en) | 2020-12-17 |
| ZA202005474B (en) | 2021-06-30 |
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