CN216714709U - Medium-pressure two-stage oil-free water lubrication air compressor - Google Patents
Medium-pressure two-stage oil-free water lubrication air compressor Download PDFInfo
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- CN216714709U CN216714709U CN202123453473.1U CN202123453473U CN216714709U CN 216714709 U CN216714709 U CN 216714709U CN 202123453473 U CN202123453473 U CN 202123453473U CN 216714709 U CN216714709 U CN 216714709U
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Abstract
The utility model discloses a medium-pressure two-stage oil-free water lubrication air compressor which comprises a two-stage main machine compression system, wherein the first-stage main machine compression system connects compressed air to a first-stage gas-liquid separation system for gas-liquid separation, the second-stage main machine compression system connects the compressed air to a second-stage gas-liquid separation system for gas-liquid separation, the water-gas cooling system comprises four groups of coolers, the discharge water of the compression main machine of the first-stage main machine compression system and the discharge water of the second-stage main machine compression system are connected to a first-stage discharge water cooler and a second-stage discharge water cooler, the gas separated by the first-stage gas-liquid separation system and the second-stage gas separation system is respectively connected to the first-stage discharge water cooler and the second-stage discharge water cooler, and the compressed air and the water are respectively discharged through pipelines after the water-gas cooling system is cooled for subsequent equipment to use. Through the mode, the gas reaches medium and high pressure finally by adopting two-stage segmented compression, the single-screw main machine for oil-water double-pipe simultaneous use is created, and the reliable mechanical seal is arranged, so that the compressed gas is not polluted by oil, and the medium and high pressure gas is obtained and still remains.
Description
Technical Field
The utility model relates to the technical field of air compression equipment, in particular to a medium-pressure two-stage oil-free water lubrication air compressor.
Background
The oil-free water lubrication air compressor belongs to a screw type air compressor, and mainly utilizes water to replace lubricating oil to perform lubrication, and in the working process, the lubrication, sealing and cooling of the whole main machine are all completed by water, and compared with oil-free air compressors in other forms, the oil-free water lubrication air compressor has obvious advantage characteristics: water is used as a medium for compression sealing and cooling, so that the use cost is low; through the advanced sealing and isolating technology, the compressed air is cleaner and can be pure oil-free; the volume efficiency is higher, the energy is saved more, the energy is saved by more than 15% compared with that of a two-stage dry type double screw, and the energy is saved by more than 36% compared with that of a one-stage dry type double screw; frequent and expensive maintenance of a main machine of the dry screw is avoided, and the dry screw is more stable and reliable; the noise is lower, the axial and radial stress of the single screw is balanced, and the star wheel freely rotates along with the screw under the lubrication of a water film, so that the main machine part stably operates under low load, and the low noise and the durability are ensured; compared with the traditional air compressor, the air compressor saves the consumption products such as lubricating oil, an oil filter, an oil-gas separation core and the like, thereby reducing the maintenance cost, achieving 1/5 maintenance cost of the traditional micro-oil air compressor in one year, having no oil waste and being more environment-friendly in use.
Due to the structural reason, the single-screw star wheel sheet is lubricated only by water and cannot bear large load, a single unit cannot achieve large compression ratio, the general pressure does not exceed 1.0mpa, the requirement for clean and oilless medium-high pressure gas cannot be achieved, and based on the defects and shortcomings, the existing technology is necessarily improved, and the medium-pressure two-stage oilless water lubrication air compressor is designed.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a medium-pressure two-stage oil-free water lubrication air compressor, which adopts a two-stage main machine for compression, and the sectional compression finally reaches medium-high pressure gas, creates a single screw main machine for simultaneous use of oil and water double pipes, and is provided with reliable mechanical seal, so that the compressed gas is not polluted by oil, and not only the medium-high pressure gas is obtained, but also the gas is still.
Preferably, in order to solve the above technical problem, one technical solution adopted by the present invention is: the medium-pressure two-stage oil-free water lubrication air compressor comprises a first-stage host compression system, a second-stage host compression system, a first-stage gas-liquid separation system, a second-stage gas-liquid separation system, a water-gas cooling system, a bearing lubricating oil cooling system and an electric control system, wherein the first-stage host compression system connects compressed air to the first-stage gas-liquid separation system, the first-stage gas-liquid separation system performs gas-liquid separation on the compressed air, the second-stage host compression system connects the compressed air to the second-stage gas-liquid separation system for gas-liquid separation, the water-gas cooling system comprises four groups of coolers, namely a first-stage discharge water cooler, a second-stage discharge water cooler and a first-stage discharge gas cooler and a second-stage discharge gas cooler, an air inlet filter is arranged in front of the two rows of discharge water coolers, and the discharge water of the compression hosts of the first-stage host compression system and the second-stage host compression system is connected to the first-stage discharge water cooler and the second-discharge water cooler, the gas separated by the first-stage gas-liquid separation system and the second-stage gas-liquid separation system is respectively connected to a first-stage exhaust gas cooler and a second-stage exhaust gas cooler, compressed air and water are respectively exhausted through pipelines after the water-gas cooling system is cooled for subsequent equipment to use, a bearing of the compression main machine is lubricated by lubricating oil, a compression cavity of the compression main machine is lubricated and cooled by water, and the bearing and the compression cavity of the compression main machine are mechanically sealed.
Preferably, the compression main machine adopts a single-screw main machine, the bearing lubricating oil cooling system is provided with an oil pump, a cooler and a filter which are sequentially connected, and the bearing lubricating oil cooling system outputs lubricating oil for lubricating the bearings of the single-screw main machine.
Preferably, the compression host is adjusted by adopting variable frequency driving, each level of the compression host controls the rotating speed independently, each level of the rotating speed is adjusted to the optimal rotating speed, and the whole machine achieves the optimal performance.
Preferably, the bottom of the gas-liquid separation tank of the first-stage gas-liquid separation system and the second-stage gas-liquid separation system is provided with an automatic drainer.
Preferably, the electric control system is internally provided with an autonomously developed double-stage compression control program, and the double-stage compression control program is provided with reliable working logic and safe protection early warning measures.
Compared with the prior art, the utility model has the beneficial effects that:
the single-screw main engine is optimally designed, more reliable lubricating oil is used as a medium for lubricating the bearing, and the lubricating oil provides better lubricating effect and abrasion resistance, so that the single-screw star wheel sheet is more reliable and durable, and the load can be larger;
the compression ratio of each stage is controlled within a reasonable range by adopting two-stage main machine compression, and the gas reaches medium-high pressure finally by sectional compression;
the frequency conversion driving adjustment of the whole unit is carried out, each stage independently controls the rotating speed, the rotating speed of each stage is adjusted to the optimal rotating speed, and the whole machine achieves the optimal performance;
the first-stage gas-liquid separation system and the second-stage gas-liquid separation system are provided with automatic water drainers, and when the water amount in the separation tank reaches a set upper limit, the automatic water drainers automatically drain water;
a double-stage compression control program is developed autonomously, and reliable working logic and safe protection early warning measures are set;
the oil-water double-pipe simultaneous single-screw main machine is innovatively used, the physical properties of oil and water are used to the maximum extent, the oil is used for bearing lubrication, the water is used for compression cavity lubrication and cooling, and a reliable mechanical seal is arranged, so that compressed gas is not polluted by the oil, and not only gas with medium and high pressure is obtained, but also the gas is still clean;
in order to meet the requirement of clean gas, but the use working condition of medium-high pressure (3.0-4.0mpa) is needed, a medium-pressure two-stage oil-free water lubrication air compressor is designed and developed.
Drawings
Fig. 1 is a schematic structural diagram of a medium-pressure two-stage oil-free water lubrication air compressor.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and will thus define the scope of the utility model more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
the medium-pressure two-stage oil-free water lubrication air compressor comprises a first-stage main machine compression system 1, a second-stage main machine compression system 2, a first-stage gas-liquid separation system 3, a second-stage gas-liquid separation system 4, a water-gas cooling system 5, a bearing lubrication oil cooling system 6 and an electric control system 7, wherein the first-stage main machine compression system 1 is used for connecting compressed air to the first-stage gas-liquid separation system 3, the first-stage gas-liquid separation system 3 is used for carrying out gas-liquid separation on the compressed air, the second-stage main machine compression system 2 is used for connecting the compressed air to the second-stage gas-liquid separation system 4 for carrying out gas-liquid separation, the water-gas cooling system 5 comprises four groups of coolers, namely a first-stage discharge water cooler, a second-stage discharge water cooler and a first-stage discharge gas cooler and a second-stage discharge gas cooler, an air inlet filter is arranged in front of the two-stage main machine compression systems, and the compressed main machine discharge water of the first-stage main machine compression system and the second-stage main machine compression system is connected to the first-discharge water cooler and the second-discharge water cooler, The secondary water discharge cooler is characterized in that gas separated by the primary gas-liquid separation system and the secondary gas-liquid separation system is respectively connected to the primary gas discharge cooler and the secondary gas discharge cooler, compressed air and water are respectively discharged through pipelines after the water-gas cooling system 5 is cooled and are used by subsequent equipment, a bearing of the compression main machine is lubricated by lubricating oil, a compression cavity of the compression main machine is lubricated and cooled by water, and the bearing and the compression cavity of the compression main machine are mechanically sealed, so that the compressed gas is not polluted by oil, medium-high pressure gas is obtained, and the gas is still clean.
The single-screw main engine is adopted as the compression main engine, more reliable lubricating oil is used for lubricating the bearings of the single-screw main engine as a medium, the bearing lubricating oil cooling system 6 is provided with an oil pump, a cooler and a filter which are sequentially connected, and the lubricating oil output by the bearing lubricating oil cooling system 6 provides better lubricating effect and abrasion resistance for the bearings of the single-screw main engine, so that the star wheel sheet of the single-screw main engine is more reliable and durable, and the load can be larger.
The compression host machine adopts variable frequency driving adjustment, each level of independent control rotating speed adjusts each level of rotating speed to the optimal rotating speed, and the whole machine achieves the optimal performance.
Automatic drainers are arranged at the bottoms of the gas-liquid separation tanks of the first-stage gas-liquid separation system 3 and the second-stage gas-liquid separation system 4, and when the water amount in the separation tanks reaches a set upper limit, automatic drainage is performed.
The electric control system 7 is internally provided with an independently developed double-stage compression control program which is provided with reliable working logic and safe protection early warning measures.
The utility model relates to a medium-pressure two-stage oil-free water lubrication air compressor, which adopts a two-stage main machine for compression, realizes the sectional compression to finally reach medium-high pressure gas, innovatively uses an oil-water double-pipe simultaneous single-screw main machine, uses the physical properties of oil and water to the maximum extent, uses the oil for the lubrication of a bearing, uses the water for the lubrication and cooling of a compression cavity, is provided with reliable mechanical seal, prevents the compressed gas from being polluted by the oil, not only obtains the medium-high pressure gas, but also keeps the gas clean.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides a medium-pressure doublestage oilless water lubrication air compressor machine which characterized in that: the medium-pressure two-stage oil-free oil-water lubrication air compressor comprises a primary host compression system, a secondary host compression system, a primary gas-liquid separation system, a secondary gas-liquid separation system, a water-gas cooling system, a bearing lubricating oil cooling system and an electric control system, wherein the primary host compression system connects compressed air to the primary gas-liquid separation system, the primary gas-liquid separation system carries out gas-liquid separation on the compressed air, the secondary host compression system connects the compressed air to the secondary gas-liquid separation system for gas-liquid separation, the water-gas cooling system comprises four groups of coolers, namely a primary discharge water cooler, a secondary discharge water cooler and a primary discharge gas cooler and a secondary discharge gas cooler, an air inlet filter is arranged in front of the two discharge gas coolers, the compressed host discharge water of the primary host compression system and the compressed host discharge water cooler of the secondary host compression system are connected to the primary discharge water cooler and the secondary discharge water cooler, the gas separated by the primary gas-liquid separation system and the secondary gas separation system is connected to the primary discharge water cooler and the secondary discharge water cooler respectively, And compressed air and water are respectively discharged through pipelines after the water-gas cooling system is cooled, and are used by subsequent equipment, a bearing of the main compressor is lubricated by lubricating oil, a compression cavity of the main compressor is lubricated and cooled by water, and the bearing and the compression cavity of the main compressor are mechanically sealed.
2. The medium-pressure two-stage oil-free water lubrication air compressor as claimed in claim 1, wherein: the compression host machine adopts a single-screw host machine, the bearing lubricating oil cooling system is provided with an oil pump, a cooler and a filter which are sequentially connected, and the bearing lubricating oil cooling system outputs lubricating oil for lubricating the bearings of the single-screw host machine.
3. The medium-pressure two-stage oil-free water lubrication air compressor as claimed in claim 2, wherein: the compression host machine adopts variable frequency driving adjustment, each level of independent control rotating speed adjusts each level of rotating speed to the optimal rotating speed, and the whole machine achieves the optimal performance.
4. The medium-pressure two-stage oil-free water lubrication air compressor as claimed in claim 1, wherein: automatic drainers are arranged at the bottoms of the gas-liquid separation tanks of the first-stage gas-liquid separation system and the second-stage gas-liquid separation system.
5. The medium-pressure two-stage oil-free water lubrication air compressor as claimed in claim 1, wherein: a double-stage compression control program is arranged in the electric control system, and the double-stage compression control program is provided with reliable working logic and safe protection early warning measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123453473.1U CN216714709U (en) | 2021-12-31 | 2021-12-31 | Medium-pressure two-stage oil-free water lubrication air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123453473.1U CN216714709U (en) | 2021-12-31 | 2021-12-31 | Medium-pressure two-stage oil-free water lubrication air compressor |
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| Publication Number | Publication Date |
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| CN216714709U true CN216714709U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123453473.1U Active CN216714709U (en) | 2021-12-31 | 2021-12-31 | Medium-pressure two-stage oil-free water lubrication air compressor |
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| CN (1) | CN216714709U (en) |
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2021
- 2021-12-31 CN CN202123453473.1U patent/CN216714709U/en active Active
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