CN111997896A - Oil-free gas contact double-screw compressor - Google Patents
Oil-free gas contact double-screw compressor Download PDFInfo
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- CN111997896A CN111997896A CN202010941925.1A CN202010941925A CN111997896A CN 111997896 A CN111997896 A CN 111997896A CN 202010941925 A CN202010941925 A CN 202010941925A CN 111997896 A CN111997896 A CN 111997896A
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- oil
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- driving shaft
- screw compressor
- gas contact
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- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009545 invasion Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 239000013535 sea water Substances 0.000 description 14
- 238000010612 desalination reaction Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000000746 purification Methods 0.000 description 5
- 239000008213 purified water Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- 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
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/086—Carter
-
- 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
- F04C29/04—Heating; Cooling; Heat insulation
-
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/90—Alloys not otherwise provided for
- F05C2201/903—Aluminium alloy, e.g. AlCuMgPb F34,37
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to an oil-gas contact-free double-screw compressor, which comprises a shell, a male driving shaft and a female driving shaft, wherein an air inlet cavity is arranged at one side in the shell, an air outlet cavity is arranged at the other side in the shell, a compression working cavity communicated with the air inlet cavity and the air outlet cavity is arranged in the middle of the shell, two ends of the male driving shaft and two ends of the female driving shaft are freely and rotatably supported on the shell, a thread is arranged in the middle of the male driving shaft, a thread meshed with the female driving shaft is arranged in the middle. The threads of the male driving shaft and the threads of the female driving shaft are meshed with each other for transmission, so that the working volume is continuously changed due to the invasion or the disengagement of teeth, the volume between each pair of tooth grooves is periodically changed, the purposes of air suction, compression and exhaust are achieved, and the compression work without an oil-gas contact type is realized; it features no oil-gas contact, light weight, high antiwear performance and small size.
Description
Technical Field
The invention relates to an oil-gas-contact-free double-screw compressor, in particular to an oil-gas-contact-free double-screw compressor based on a portable seawater desalination and purification device.
Background
At present, based on portable sea water desalination device, can be used for different areas and environment to solve the inconvenient problem of large-scale sea water desalination equipment transportation facility, traditional small-size water purification unit adopts the filter core filter membrane to filter mostly, not only purifies thoroughly inadequately, needs frequent change consumptive material moreover.
The traditional water purifier is large in size, heavy in weight and inconvenient to carry, and the reason is the size and the mass of the compressor. The moist gas of ordinary compressor pump moisture can influence the compressor life-span and the gas that the extraction obtained can mix the oil gas that the compressor device volatilizees, in order to obtain more pure gas and guarantee the life-span of compressor, guarantees the whole zero contact of work oil gas of machine through the design.
The screw compressor has simple structure, less parts, no wearing parts such as air valves and piston rings, main friction parts such as rotors and bearings, and high strength and wear resistance. The core component of the water purifying equipment is a compressor, and the whole product has the characteristic of durability due to the characteristic of the screw compressor.
In view of the above problems, there is a need to improve a screw compressor in a portable seawater desalination device to solve the above-mentioned problems of inconvenient carrying and mixing of oil vapor and water vapor generated by the compressor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an oil-gas-contact-free double-screw compressor, which has no oil-gas contact in the whole process, thereby ensuring the safety and the durability.
The purpose of the invention is realized by the following technical scheme:
the oil-gas contact-free double-screw compressor is characterized in that: contain casing, positive drive shaft and cloudy drive shaft, one side is equipped with the chamber of admitting air in the casing, and the opposite side is equipped with out the gas chamber, and the middle part is the compression working chamber of intercommunication chamber and the chamber of giving vent to anger, and the both ends of positive drive shaft and cloudy drive shaft are supported on the casing freely in a rotating way, and the middle part of positive drive shaft is equipped with the screw thread, and the middle part of cloudy drive shaft is equipped with rather than the screw thread of meshing mutually, and screw thread portion is located.
Further, the above oil-gas-contact-free twin-screw compressor, wherein the male drive shaft and the female drive shaft are supported on the housing through a seal bearing.
Further, in the above oil-gas-free contact twin-screw compressor, a mechanical seal ring is disposed inside the seal bearing.
Further, in the above oil-gas-free contact twin-screw compressor, the seal bearing is a self-lubricating seal bearing.
Further, in the oil-gas contact-free double-screw compressor, the air inlet cavity and the air outlet cavity are both provided with temperature and pressure sensors.
Further, the oil-gas-free contact twin-screw compressor is characterized in that the material of the male driving shaft and the female driving shaft is polyester.
Furthermore, according to the oil-gas contact-free double-screw compressor, the air inlet communicated with the air inlet cavity is formed in the upper right end of the shell, and the air outlet communicated with the air outlet cavity is formed in the lower left end of the shell.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and is embodied in the following aspects:
the invention has unique design and novel structure, the threads of the male driving shaft and the female driving shaft in the shell are meshed and driven with each other, so that the working volume is continuously changed due to the invasion or the disengagement of teeth, the volume between each pair of tooth grooves is periodically changed, the purposes of air suction, compression and exhaust are achieved, and the compression work without an oil-gas contact type is realized;
secondly, the shell is made of aluminum alloy materials, and the driving shaft is made of high-density polymerized grease, so that the double-screw compressor has the characteristics of no oil-gas contact, light weight, wear resistance, small volume and the like;
the portable seawater desalination and purification device can be applied to a portable seawater desalination and purification device, the spiral heat exchange tube forms a high-temperature negative pressure environment by compressing and acting, when normal-temperature seawater flows through the surface of the spiral heat exchange tube with the internal temperature reaching 70 ℃, negative pressure evaporation is carried out, steam is generated and enters the spiral heat exchange tube, the normal-temperature seawater outside the tube is evaporated and cooled, and finally purified water is condensed and collected inside the heat exchange tube; the high-temperature negative-pressure environment is created, water and purified water which cannot meet the requirement of reference are separated, water vapor obtained by evaporation at 70 ℃ is relatively pure, other harmful substances are not easy to volatilize, and the water vapor generated by pollution is not easy to generate; during the compression process, water vapor is pumped out and pumped into a condensing tube to be liquefied into water.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1: the invention has the overall structure schematic diagram;
FIG. 2: the invention is a schematic cross-sectional structure;
FIG. 3: the invention is a longitudinal section structure schematic diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the directional terms and the sequence terms, etc. are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-3, there is not oily gas contact double-screw compressor, contain casing 1, positive drive shaft 2 and negative drive shaft 3, the material of casing is the aluminum alloy, positive drive shaft 2 and negative drive shaft 3's material is polyester, one side is equipped with air inlet chamber 7 in the casing 1, the opposite side is equipped with out gas chamber 8, all install temperature pressure sensor in air inlet chamber 7 and the gas chamber 8 of giving vent to anger, the middle part is the compression working chamber that feeds through air inlet chamber 7 and play gas chamber 8, the both ends of positive drive shaft 2 and negative drive shaft 3 are supported on casing 1 through sealed bearing 6 rotation freely, sealed bearing 6's inboard is equipped with mechanical seal, sealed bearing 6 is self-lubricating sealed bearing, the middle part of positive drive shaft 2 is equipped with the screw thread, the middle part of negative drive shaft 3 is equipped with the screw thread rather than meshing.
The upper right end of the shell 1 is provided with an air inlet A communicated with the air inlet cavity 7, and the lower left end of the shell 1 is provided with an air outlet B communicated with the air outlet cavity 8.
The lightweight processing shell adopts an aluminum profile, the shell is an airtight sealed shell, the driving shaft adopts high-density polyester, and the motor drives the high-density polyester driving shaft to generate power; the pressure inside the machine is 2bar at the maximum, the temperature is 70 ℃, and the material used can meet the requirement in the bearable range.
The inside half sealed state that is of casing, only have two passageways of giving vent to anger of admitting air, the both ends of drive shaft are equipped with sealed bearing, and be oilless bearing, sealed bearing is used for keeping apart compressor inner chamber and external, and casing and division board are supported to the sealing washer outer lane, and sealed bearing inner race rotates with the drive shaft together.
The compressor works to generate a high-temperature low-pressure environment, water negative pressure evaporation enters the shell at the right part along with air flow from the air inlet A, the water negative pressure evaporation passes through the mutual meshing of the threads of the male driving shaft 2 and the female driving shaft 3, water vapor continuously invades and separates between screw teeth, and finally the water vapor is gathered at the left part in the cavity. The working operation meets the conditions that the temperature of the steam at an inlet is 70 ℃ and the pressure is less than or equal to 0.3 bar; the pressure of the air outlet is more than 1.7bar, and the flow of the water vapor can be controlled after the requirement is met by outputting a signal through the temperature and pressure sensor.
During the specific application, by drive arrangement drive positive drive shaft 2 and negative drive shaft 3 rotation respectively, negative drive shaft 3 clockwise rotation, positive drive shaft 2 anticlockwise rotation, the screw thread of positive drive shaft 2 and the screw thread intermeshing transmission of negative drive shaft 3 to the tooth's socket volume is changed to the periodicity, reaches the carminative purpose of breathing in, and extrusion between the tooth's socket gap makes 7 gaseous transfers in air inlet chamber to go out air cavity 8.
Compression is achieved by varying the volume of the tooth spaces of the intermeshing male and female rotors, and the gas volume between the tooth spaces is periodically varied along the axis of the rotors, whereby the gas on the suction side is pushed to the discharge side. The flow path of the water vapor enters the air inlet cavity 7 from the air inlet A, is pressurized by the double screws and then is discharged from the air outlet B. 70 ℃ water vapor enters the inner cavity of the compressor through the air inlet to be compressed and collected, the signals meeting the requirements are output through the temperature and pressure sensor, the signals are meshed and pressurized through the double screws, the left outlet is isolated by the sealing ring, and the water vapor is discharged from the exhaust port under the action of 70 ℃ water vapor pressure.
The two pressure sensors are respectively positioned at the inlet and the outlet in the shell and used for detecting the pressure of the inlet and the pressure of the outlet, the working operation of the double-screw compressor requires that the temperature of the water vapor at the inlet is close to 70 ℃, the pressure is less than or equal to 0.3bar, and the temperature of the water vapor at the outlet is more than 70 ℃ and the pressure is more than 1.7 bar.
The double-screw compressor does work to form a negative pressure environment on the surface of the spiral heat exchange tube and generate heat (the pressure is 0.3 bar). When the surface of the spiral heat exchange tube is higher than 70 ℃, seawater is sprayed on the surface of the heat exchange tube, the seawater is evaporated under negative pressure (the vapor obtained by evaporation at 70 ℃ is the purest), the vapor enters the air inlet A of the compressor, is discharged from the air outlet B through pressurization, enters the inside of the spiral heat exchange tube, is evaporated and cooled through normal-temperature seawater outside the tube, and finally is condensed to obtain purified water.
In conclusion, the invention has unique design and novel structure, the threads of the male driving shaft and the female driving shaft in the shell are meshed with each other for transmission, so that the working volume is continuously changed due to the invasion or the disengagement of teeth, the volume between each pair of tooth grooves is periodically changed, the purposes of air suction, compression and exhaust are achieved, and the compression work without an oil-gas contact type is realized;
the shell is made of aluminum alloy materials, and the driving shaft is made of high-density polymerized grease, so that the double-screw compressor has the characteristics of no oil-gas contact, light weight, wear resistance, small volume and the like;
the device can be applied to a portable seawater desalination purification device, the spiral heat exchange tube forms a high-temperature negative pressure environment by compressing and acting, when normal-temperature seawater flows through the surface of the spiral heat exchange tube with the internal temperature reaching 70 ℃, negative pressure evaporation is carried out, steam is generated and enters the spiral heat exchange tube, the normal-temperature seawater outside the tube is evaporated and cooled, and finally, purified water is obtained by condensation and collection; a high-temperature negative-pressure environment is created, sewage and purified water are separated, and water vapor obtained by evaporation at 70 ℃ is relatively pure; during the compression process, water vapor is pumped out and pumped into a condensing tube to be liquefied into water.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and shall be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. There is not oily gas contact twin-screw compressor, its characterized in that: contain casing (1), positive drive shaft (2) and cloudy drive shaft (3), one side is equipped with air intake chamber (7) in casing (1), the opposite side is equipped with out gas cavity (8), the middle part is for the compression working chamber that feeds through air intake chamber (7) and play gas cavity (8), the both ends of positive drive shaft (2) and cloudy drive shaft (3) are rotatory to be supported freely on casing (1), the middle part of positive drive shaft (2) is equipped with the screw thread, the middle part of cloudy drive shaft (3) is equipped with the screw thread rather than meshing, screw thread portion is located compression working chamber.
2. An oil-gas contact free twin screw compressor as claimed in claim 1, wherein: the male drive shaft (2) and the female drive shaft (3) are supported on the housing (1) by a seal bearing (6).
3. An oil-gas contact free twin screw compressor as claimed in claim 2, wherein: the inner side of the sealing bearing (6) is provided with a mechanical sealing ring.
4. An oil-gas contact free twin screw compressor as claimed in claim 2, wherein: the sealing bearing (6) is a self-lubricating sealing bearing.
5. An oil-gas contact free twin screw compressor as claimed in claim 1, wherein: and the air inlet cavity and the air outlet cavity are both provided with temperature and pressure sensors.
6. An oil-gas contact free twin screw compressor as claimed in claim 1, wherein: the materials of the male driving shaft (2) and the female driving shaft (3) are polyester.
7. An oil-gas contact free twin screw compressor as claimed in claim 1, wherein: the upper right end of the shell (1) is provided with an air inlet (A) communicated with the air inlet cavity (7), and the lower left end of the shell (1) is provided with an air outlet (B) communicated with the air outlet cavity (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941925.1A CN111997896A (en) | 2020-09-09 | 2020-09-09 | Oil-free gas contact double-screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941925.1A CN111997896A (en) | 2020-09-09 | 2020-09-09 | Oil-free gas contact double-screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111997896A true CN111997896A (en) | 2020-11-27 |
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ID=73469659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010941925.1A Pending CN111997896A (en) | 2020-09-09 | 2020-09-09 | Oil-free gas contact double-screw compressor |
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| Country | Link |
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| CN (1) | CN111997896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773585A (en) * | 2022-11-16 | 2023-03-10 | 烟台颜泽阳电器有限公司 | Water-cooling frequency conversion screw type water chilling unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793654A (en) * | 2005-12-22 | 2006-06-28 | 西安交通大学 | Double-screw compressor for high pressure system |
| CN202065185U (en) * | 2011-04-14 | 2011-12-07 | 肖文伟 | Oil-free screw compressor with novel structure |
| CN106837788A (en) * | 2017-01-17 | 2017-06-13 | 张善君 | Oil-free negative and positive birotor screw rod |
-
2020
- 2020-09-09 CN CN202010941925.1A patent/CN111997896A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793654A (en) * | 2005-12-22 | 2006-06-28 | 西安交通大学 | Double-screw compressor for high pressure system |
| CN202065185U (en) * | 2011-04-14 | 2011-12-07 | 肖文伟 | Oil-free screw compressor with novel structure |
| CN106837788A (en) * | 2017-01-17 | 2017-06-13 | 张善君 | Oil-free negative and positive birotor screw rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773585A (en) * | 2022-11-16 | 2023-03-10 | 烟台颜泽阳电器有限公司 | Water-cooling frequency conversion screw type water chilling unit |
| CN115773585B (en) * | 2022-11-16 | 2023-08-25 | 昆山瑞光新能源科技有限公司 | Water-cooling variable-frequency screw type water chilling unit |
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Application publication date: 20201127 |