CN117006049A - A three-stage compression screw host with a slide valve structure - Google Patents
A three-stage compression screw host with a slide valve structure Download PDFInfo
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- CN117006049A CN117006049A CN202311027090.9A CN202311027090A CN117006049A CN 117006049 A CN117006049 A CN 117006049A CN 202311027090 A CN202311027090 A CN 202311027090A CN 117006049 A CN117006049 A CN 117006049A
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- screw rotor
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- driven gear
- gear
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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
- 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
- F04C23/001—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 of similar working principle
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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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
本公开提出一种带滑阀结构的三级压缩螺杆主机，包括一级螺杆转子组、二级螺杆转子组、三级螺杆转子组以及与动力组件连接的输出轴(17)，一级螺杆转子组、二级螺杆转子组、三级螺杆转子组沿压缩方向依序连通，三级螺杆转子组所在的腔体设有径向排口(10)处，在该径向排口(10)处设有内容积比调节滑阀(13)，通过内容积比调节滑阀(13)调节径向排口(10)的流通截面；本公开通过调节三级压缩螺杆主机的内压比从而达到与使用压力相匹配的排气压力来解决耗能问题，另外，也可有利于降低主机的噪音和震动。
The present disclosure proposes a three-stage compression screw main engine with a slide valve structure, including a first-stage screw rotor group, a second-stage screw rotor group, a third-stage screw rotor group, and an output shaft (17) connected to a power assembly. The first-stage screw rotor The group, the second-stage screw rotor group, and the third-stage screw rotor group are connected in sequence along the compression direction. The cavity where the third-stage screw rotor group is located is provided with a radial outlet (10). At the radial outlet (10) An internal volume ratio adjusting slide valve (13) is provided, and the flow section of the radial discharge port (10) is adjusted through the internal volume ratio adjusting slide valve (13); the present invention achieves the same goal by adjusting the internal pressure ratio of the three-stage compression screw main engine. Use exhaust pressure that matches the pressure to solve the energy consumption problem. In addition, it can also help reduce the noise and vibration of the host.
Description
Technical Field
The application relates to the technical field of screw compressors, in particular to a three-stage compression screw host with a slide valve structure.
Background
The screw compressor is an important industrial general basic device, and the core component of the screw compressor comprises a screw host, the screw host is developed from primary compression to current tertiary compression, and the screw compressor has great research significance on how to perform more efficient work along with the increase of the compression stages.
The research of the inventor finds that for the three-stage compression screw main machine, the condition of over-compression or under-compression often occurs when the exhaust pressure is changed in the actual use process, the energy consumption is obvious in a medium-high pressure environment of 2.5-4.0 mpa (megapascals), and the three-stage compression screw main machine is characterized in that the medium-high pressure is provided.
Therefore, the inventor proposes a three-stage compression screw main machine with a slide valve structure, which solves the energy consumption problem by adjusting the internal pressure ratio of the three-stage compression screw main machine to achieve the exhaust pressure matched with the use pressure, and in addition, the noise and vibration of the main machine can be reduced.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides a three-stage compression screw main machine with a slide valve structure, which solves the energy consumption problem by adjusting the internal pressure ratio of the three-stage compression screw main machine to achieve the exhaust pressure matched with the using pressure, and is also beneficial to reducing the noise and vibration of the main machine.
Compared with the prior art, the application provides a three-stage compression screw host with a slide valve structure, which comprises a first-stage screw rotor group, a second-stage screw rotor group, a third-stage screw rotor group and an output shaft connected with a power assembly, wherein the first-stage screw rotor group, the second-stage screw rotor group and the third-stage screw rotor group are sequentially communicated along the compression direction, a radial discharge port is arranged in a cavity where the third-stage screw rotor group is located, an inner volume ratio adjusting slide valve is arranged at the radial discharge port, and the flow section of the radial discharge port is adjusted through the inner volume ratio adjusting slide valve.
After adopting the structure, compared with the prior art, the application has the following advantages:
in the operation process of the three-stage compression screw main machine, the condition that the final pressure and the exhaust pressure are not consistent occurs, so that the main machine does more work, the performance of the main machine is influenced, and excessive noise and vibration are caused.
The improved screw compressor further comprises a gear box, wherein a three-level screw rotor set is arranged on the left side of the gear box, a three-level air suction port is formed in the left side of the gear box, a two-level screw rotor set is arranged on the right side of the gear box, a two-level air outlet is formed in the right side of the gear box, and compressed air compressed by the two-level screw rotor set directly passes through the gear box to enter the three-level screw rotor set.
As an improvement, the left side of the gear box is provided with an output shaft and a three-stage screw rotor set up and down in parallel, the right side of the gear box is provided with a first-stage screw rotor set and a second-stage screw rotor set up and down in parallel, a driving gear, a first-stage driven gear driving a first-stage male rotor shaft of the first-stage screw rotor set, a second-stage driven gear driving a second-stage male rotor shaft of the second-stage screw rotor set, and a third-stage driven gear driving a third-stage male rotor shaft of the third-stage screw rotor set are arranged in the gear box along the circumferential direction of the driving gear and meshed with the driving gear respectively, the driving gear is connected with the output shaft, and the output shaft drives the first-stage driven gear, the second-stage driven gear and the third-stage driven gear to rotate through the driving gear.
As an improvement, the one-level driven gear is sleeved with the left end of the one-level male rotor shaft, the one-level driven gear directly drives the one-level male rotor shaft to synchronously rotate, the two-level driven gear is sleeved with the left end of the two-level male rotor shaft, the two-level driven gear directly drives the two-level male rotor shaft to synchronously rotate, the three-level driven gear is sleeved with the right end of the three-level male rotor shaft, and the three-level driven gear directly drives the three-level male rotor shaft to synchronously rotate.
As an improvement, a first-stage air suction port is formed in the upper side of the first-stage screw rotor set, a second-stage interval is formed between the first-stage screw rotor set and the second-stage screw rotor set, through holes which are vertically communicated are formed in the second-stage interval, the upper end of each through hole is used as a first-stage air outlet of the first-stage screw rotor set, and the lower end of each through hole is used as a second-stage air suction port of the second-stage screw rotor set.
As an improvement, the first-stage screw rotor group and the second-stage screw rotor group are arranged in bilateral symmetry with respect to the same vertical plane.
As an improvement, the primary air suction port and the secondary air suction port are both far away from the gear box, and the primary air outlet and the secondary air outlet are both close to the gear box.
As an improvement, the two-stage screw rotor set and the three-stage screw rotor set are horizontally distributed.
As improvement, the outer diameter of a first-stage male rotor of the first-stage screw rotor group is larger than that of a second-stage male rotor of the second-stage screw rotor group, the outer diameter of a third-stage male rotor of the third-stage screw rotor group, and the effective length of the first-stage male rotor is larger than that of the second-stage male rotor, and the effective length of the first-stage male rotor is larger than that of the third-stage male rotor.
Drawings
Fig. 1 is a right side view of a three stage compression screw host with slide valve configuration.
Fig. 2 is a cross-sectional view in the A-A direction.
Reference numerals illustrate, 1, a driving gear, 2, a first-stage driven gear, 3, a second-stage driven gear, 4, a third-stage driven gear, 5, a first-stage male rotor shaft, 6, a second-stage male rotor shaft, 7, a third-stage male rotor shaft, 8, a gear box, 9, a first-stage air suction port, 10, a radial discharge port, 11, a first-stage air discharge port, 12, a second-stage air suction port, 13, an internal volume ratio regulating slide valve, 14, a second-stage air discharge port, 15, a third-stage air suction port, 16, a vertical plane, 17, an output shaft, 18 and a second-stage female rotor.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the application. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the application defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the application.
The present application is described in further detail below:
for ease of description and understanding, the directional description is used by way of example only and is not limiting as to the scope of the claims, and the following left and right directional descriptions are based on the directions shown in fig. 2.
As shown in fig. 1 and 2, the three-stage compression screw host with the slide valve structure provided by the disclosure comprises a first-stage screw rotor set, a second-stage screw rotor set, a third-stage screw rotor set and an output shaft 17 connected with a power assembly, wherein the first-stage screw rotor set, the second-stage screw rotor set and the third-stage screw rotor set are sequentially communicated along a compression direction, a radial discharge port 10 is arranged in a cavity where the third-stage screw rotor set is located, an inner volume ratio adjusting slide valve 13 is arranged at the radial discharge port 10, and the flow section of the radial discharge port 10 is adjusted through the inner volume ratio adjusting slide valve 13.
The slide of the internal volume ratio adjusting slide valve 13 may be implemented by a linear telescopic mechanism such as a cylinder, an oil cylinder, an electric cylinder, or the like. The internal volume ratio adjusting spool 13 can be adjusted steplessly over the full opening and minimum closing range, thereby facilitating a better internal volume ratio, so that the final pressure is more matched to the exhaust pressure.
In some embodiments, as shown in fig. 2, the device further comprises a gear box 8, a three-stage screw rotor set is arranged on the left side of the gear box 8, a three-stage air suction port 15 is arranged on the left side of the gear box 8, a two-stage screw rotor set is arranged on the right side of the gear box 8, a two-stage air outlet 14 is arranged on the right side of the gear box 8, and compressed gas compressed by the two-stage screw rotor set directly passes through the gear box 8 and enters the three-stage screw rotor set. Thus, the length of the main machine is shortened, and simultaneously, the air flow paths of two stages and three stages are obviously shortened, and the internal volume ratio can be quickly adjusted for the change of the internal volume ratio adjusting slide valve 13, so that the main machine has better response capability. A through hole can be formed in the gear case 8, and the through hole is communicated with the secondary air outlet 14 and the tertiary air suction port 15.
In the embodiment, an output shaft 17 and a three-stage screw rotor set are arranged up and down on the left side of a gear box 8, a one-stage screw rotor set and a two-stage screw rotor set are arranged up and down on the right side of the gear box 8, a driving gear 1, a one-stage driven gear 2 for driving a one-stage male rotor shaft 5 of the one-stage screw rotor set, a two-stage driven gear 3 for driving a two-stage male rotor shaft 6 of the two-stage screw rotor set, and a three-stage driven gear 4 for driving a three-stage male rotor shaft 7 of the three-stage screw rotor set are arranged along the circumferential direction of the driving gear 1 and are respectively meshed with the driving gear 1, the driving gear 1 is connected with the output shaft 17, and the output shaft 17 drives the one-stage driven gear 2, the two-stage driven gear 3 and the three-stage driven gear 4 to rotate simultaneously through the driving gear 1.
Like this, in the design in this disclosure the output shaft 17 drives one-level driven gear 2, second grade driven gear 3, tertiary driven gear 4 rotation simultaneously through driving gear 1, has shortened the transmission route obviously, is favorable to efficiency promotion to based on the aforesaid design, the left side of gear box 8 sets up output shaft, tertiary screw rotor group from top to bottom, and the right side of gear box sets up one-level screw rotor group, second grade screw rotor group from top to bottom side by side, is favorable to shortening holistic length, consequently is favorable to reducing the volume.
Because the transmission path is shortened, the volume becomes smaller, so that the overall operation noise and vibration of the three-stage compression screw main machine are reduced, the parts and sealing surfaces of the three-stage compression screw main machine are reduced, the leakage points are reduced, and the stability is increased.
In this example, in order to drive more efficiently and directly, as shown in fig. 2, the primary driven gear 2 is sleeved with the left end of the primary male rotor shaft 5, the primary driven gear 2 directly drives the primary male rotor shaft 5 to rotate synchronously, the secondary driven gear 3 is sleeved with the left end of the secondary male rotor shaft 6, the secondary driven gear 3 directly drives the secondary male rotor shaft 6 to rotate synchronously, the tertiary driven gear 4 is sleeved with the right end of the tertiary male rotor shaft 7, and the tertiary driven gear 4 directly drives the tertiary male rotor shaft 7 to rotate synchronously. Thus, each stage is driven by the male rotor to the female rotor.
As shown in fig. 2, the output shaft 17 and the three-stage screw rotor set are arranged up and down, the one-stage screw rotor set and the two-stage screw rotor set are arranged up and down, the upper side of the one-stage screw rotor set is provided with a one-stage air suction port 9, a two-stage interval is arranged between the one-stage screw rotor set and the two-stage screw rotor set, the two-stage interval is provided with through holes which are penetrated up and down, the upper end of each through hole is used as a one-stage air outlet 11 of the one-stage screw rotor set, and the lower end of each through hole is used as a two-stage air suction port 12 of the two-stage screw rotor set. In this way, the flow path is shorter. In order to shorten the path even more, the three-stage suction port 15 is provided close to the gear case 8.
In order to make the structure more compact, as shown in fig. 1 and 2, the primary screw rotor set and the secondary screw rotor set are arranged up and down and are both positioned on the right side of the gear box 8, and the secondary screw rotor set and the tertiary screw rotor set are horizontally distributed and are positioned on the left side and the right side of the gear box 8. As shown in fig. 2, the outer diameter of the first-stage male rotor of the first-stage screw rotor set is larger than that of the second-stage male rotor of the second-stage screw rotor set, and the outer diameter of the third-stage male rotor of the third-stage screw rotor set, and the effective length of the first-stage male rotor is larger than that of the second-stage male rotor and larger than that of the third-stage male rotor.
It should be noted that in this example, as shown in fig. 1, the primary screw rotor set and the secondary screw rotor set are symmetrically disposed about the same vertical plane 16. Namely, the male and female rotors of the primary screw rotor set and the male and female rotors of the secondary screw rotor set are symmetrically arranged about the vertical surface 16. This allows for a more orderly overall arrangement and also facilitates placement of the center of gravity near the vertical surface 16.
In some embodiments, as shown in fig. 2, the primary air suction port 9 and the secondary air suction port 12 are both disposed away from the gear case 8, and the primary air outlet 11 and the secondary air outlet 14 are both disposed close to the gear case 8. This facilitates the arrangement of the stages, while facilitating the shorter airflow paths for the two and three stages.
In order to be favorable for balancing the stress load of the driving gear 1, as shown in fig. 1 and in combination with fig. 2, the primary driven gear 2, the secondary driven gear 3 and the tertiary driven gear 4 are sequentially arranged around the driving gear 1 in a circumferential anticlockwise manner.
In order to further optimize the stress load, the secondary driven gear 3 and the tertiary driven gear 4 are positioned below the primary driven gear 2.
In order to make the structure more compact, thereby facilitating the reduction of the volume, the secondary female rotor 18 of the secondary screw rotor group is disposed to overlap the tertiary driven gear 4 as shown in fig. 1, and the left shaft end of the secondary female rotor 18 is disposed to retract to the right as shown in fig. 2, thereby providing a suitable space for the tertiary male rotor shaft 7 to be fitted to the right and connected with the tertiary driven gear 4.
Although the primary driven gear 2 directly drives the primary male rotor shaft 5 to synchronously rotate, the secondary driven gear 3 directly drives the secondary male rotor shaft 6 to synchronously rotate, the tertiary driven gear 4 directly drives the tertiary male rotor shaft 7 to synchronously rotate, or the corresponding driven gear drives the corresponding female rotor shaft, or the combination of the corresponding male rotor shaft and the corresponding female rotor shaft.
A power assembly such as an electric motor.
The gearbox 8 of the present disclosure may be provided separately.
However, it should be noted that the gear case 8 may be formed by splicing left and right pump bodies, the left pump body is used for installing the three-stage screw rotor set, and the right pump body is used for installing the first-stage screw rotor set and the second-stage screw rotor set. Due to the middle-set design, the assembly difficulty is increased, the gear case 8 is formed by splicing left and right pump bodies, the assembly difficulty is reduced, specifically, before the assembly, the three-stage screw rotor set is installed on the left pump body, the output shaft 17, the driving gear 1 and the three-stage driven gear 4 are connected, a left side assembly is formed, the assembly is easy and the control precision is improved in the open state in the assembly process, the first-stage screw rotor set and the second-stage screw rotor set are installed on the right pump body, the first-stage driven gear 2 and the second-stage driven gear 3 are connected, the right side assembly is formed, the assembly is easy and the control precision is improved in the open state in the assembly process, after the rotation positions of the driving gear 1, the first-stage driven gear 2 and the second-stage driven gear 3 are obtained, the gear case 8 can be completed through the left and right splicing, the good assembly of all parts in the interior is formed, the meshing precision of the male and female rotors in the first-stage screw rotor set, the second-stage screw rotor set and the third-stage screw rotor set is also favorable for obtaining the readjustment without the need of excessive guarantee.
Since the three-stage driven gear 4 is meshed with the driving gear 1 in advance when the left side assembly is formed, the three-stage driven gear 4 rotates along with the driving gear 1, and the three-stage driven gear 4 does not need to be independently adjusted when being spliced left and right.
In understanding the present application, the above-described structure may be understood together with other embodiments/drawings, if necessary, and will not be described herein.
The foregoing description is only illustrative of the present application and is therefore intended to cover all such modifications and changes in form, details, and materials as fall within the true spirit and scope of the application.
Claims (9)
1. The utility model provides a take tertiary compression screw host computer of sliding valve structure, includes one-level screw rotor group, second grade screw rotor group, tertiary screw rotor group and output shaft (17) be connected with power pack, one-level screw rotor group, second grade screw rotor group, tertiary screw rotor group follow the compression direction and communicate in proper order, its characterized in that, the cavity that tertiary screw rotor group is located is equipped with radial discharge (10) department, is equipped with interior volume ratio adjustment sliding valve (13) in this radial discharge (10) department, adjusts the flow cross section of radial discharge (10) through interior volume ratio adjustment sliding valve (13).
2. The three-stage compression screw host with the slide valve structure according to claim 1, further comprising a gear box (8), wherein a three-stage screw rotor set is arranged on the left side of the gear box (8), a three-stage air suction port (15) is arranged on the left side of the gear box (8), a two-stage screw rotor set is arranged on the right side of the gear box (8), a two-stage air outlet (14) is arranged on the right side of the gear box (8), and compressed air compressed by the two-stage screw rotor set directly passes through the gear box (8) to enter the three-stage screw rotor set.
3. The three-stage compression screw main machine with the slide valve structure according to claim 2, wherein an output shaft (17) and a three-stage screw rotor set are arranged on the left side of a gear box (8) in an up-down parallel mode, a one-stage screw rotor set and a two-stage screw rotor set are arranged on the right side of the gear box (8) in an up-down parallel mode, a driving gear (1), a one-stage driven gear (2) driving a one-stage male rotor shaft (5) of the one-stage screw rotor set, a two-stage driven gear (3) driving a two-stage male rotor shaft (6) of the two-stage screw rotor set, a three-stage driven gear (4) driving a three-stage male rotor shaft (7) of the three-stage screw rotor set, the one-stage driven gear (2), the two-stage driven gear (3) and the three-stage driven gear (4) are arranged along the circumference of the driving gear (1) and meshed with the driving gear (1) respectively, the driving gear (1) is connected with the output shaft (17), and the output shaft (17) drives the driven gear (1) to rotate simultaneously.
4. The three-stage compression screw main machine with the slide valve structure according to claim 3, wherein the primary driven gear (2) is sleeved with the left end of the primary male rotor shaft (5), the primary driven gear (2) directly drives the primary male rotor shaft (5) to synchronously rotate, the secondary driven gear (3) is sleeved with the left end of the secondary male rotor shaft (6), the secondary driven gear (3) directly drives the secondary male rotor shaft (6) to synchronously rotate, the three-stage driven gear (4) is sleeved with the right end of the three-stage male rotor shaft (7), and the three-stage driven gear (4) directly drives the three-stage male rotor shaft (7) to synchronously rotate.
5. A three-stage compression screw main machine with a slide valve structure according to claim 3, characterized in that a first-stage air suction port (9) is arranged on the upper side of the first-stage screw rotor group, a second-stage interval is arranged between the first-stage screw rotor group and the second-stage screw rotor group, through holes penetrating up and down are arranged at the second-stage interval, the upper end of each through hole is used as a first-stage air outlet (11) of the first-stage screw rotor group, and the lower end of each through hole is used as a second-stage air suction port (12) of the second-stage screw rotor group.
6. The three-stage compression screw machine with slide valve structure according to claim 5, wherein the primary screw rotor set and the secondary screw rotor set are symmetrically arranged about the same vertical plane (16).
7. The three-stage compression screw main machine with the slide valve structure according to claim 5 is characterized in that the primary air suction port (9) and the secondary air suction port (12) are both arranged far away from the gear box (8), and the primary air outlet (11) and the secondary air outlet (14) are both arranged near to the gear box (8).
8. A three stage compression screw host machine with slide valve structure as in claim 2 or 3 wherein the two stage screw rotor set and the three stage screw rotor set are horizontally distributed.
9. A three stage compression screw host machine with slide valve structure as in claim 3 wherein the primary male rotor of the primary screw rotor set has a larger outer diameter than the secondary male rotor of the secondary screw rotor set and a larger outer diameter than the tertiary male rotor of the tertiary screw rotor set, the primary male rotor effective length being greater than the secondary male rotor effective length and greater than the tertiary male rotor effective length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311027090.9A CN117006049A (en) | 2023-08-15 | 2023-08-15 | A three-stage compression screw host with a slide valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311027090.9A CN117006049A (en) | 2023-08-15 | 2023-08-15 | A three-stage compression screw host with a slide valve structure |
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| CN117006049A true CN117006049A (en) | 2023-11-07 |
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| CN202311027090.9A Pending CN117006049A (en) | 2023-08-15 | 2023-08-15 | A three-stage compression screw host with a slide valve structure |
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| CN220667819U (en) * | 2023-08-15 | 2024-03-26 | 宁波鲍斯能源装备股份有限公司 | Three-stage compression screw host with slide valve structure |
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