CN217002275U - Screw type water vapor two-stage compression system - Google Patents
Screw type water vapor two-stage compression system Download PDFInfo
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- CN217002275U CN217002275U CN202121480321.8U CN202121480321U CN217002275U CN 217002275 U CN217002275 U CN 217002275U CN 202121480321 U CN202121480321 U CN 202121480321U CN 217002275 U CN217002275 U CN 217002275U
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Abstract
The utility model discloses a screw type two-stage steam compression system which comprises a low-pressure stage screw type steam compressor, a low-pressure stage motor, a high-pressure stage screw type steam compressor, a high-pressure stage motor, an air blower, a soft water tank and an exhaust buffer tank. The utility model has the beneficial effects that: the utility model is provided with the low-pressure stage steam compressor, the low-pressure stage motor, the high-pressure stage steam compressor, the high-pressure stage motor, the blower, the soft water tank and the exhaust buffer tank.
Description
Technical Field
The utility model relates to the technical field of water vapor screw compression systems, in particular to a screw type water vapor two-stage compression system.
Background
A screw type water vapor compressor is a positive displacement rotary compression machine which converts low-pressure steam into high-pressure steam. The low-pressure steam is pressurized by the screw type water vapor compression system and then enters a downstream pipe network after passing through the buffer tank, the air suction and exhaust pressure ratio of the single-stage screw type water vapor compression system is generally 3-5 times, and the problems of equipment service life reduction, stability reduction and great reduction of the operating efficiency exist when the pressure ratio is higher than the range of the air suction and exhaust pressure ratio.
Therefore, it is necessary to provide a screw type water vapor two-stage compression system for the above problems at the time of high pressure ratio operation.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages in the prior art, the present invention provides a two-stage compression system with a screw-type water vapor compression system, which improves the pressure ratio and temperature rise of the inlet and outlet of the system, and improves the overall operation efficiency of the water vapor screw-type compression system.
In order to achieve the purpose, the screw type water vapor two-stage compression system comprises a low-pressure stage motor, a low-pressure cascade shaft device, a low-pressure stage screw type water vapor compressor, a high-pressure stage motor, a high-pressure cascade shaft device, a high-pressure stage screw type water vapor compressor, a blower, a soft water tank and an exhaust buffer tank, the main shaft of the low-pressure stage motor is connected with the low-pressure stage screw rod type vapor compressor through a low-pressure cascade shaft connector in a transmission way, the main shaft of the high-pressure stage motor is connected with the high-pressure stage screw rod type vapor compressor through a high-pressure cascade shaft device in a transmission way, the low-pressure stage screw rod type vapor compressor and the high-pressure stage screw rod type vapor compressor are respectively communicated with the blower and connected with the soft water tank through a water spray pump, the high-pressure-stage screw rod type steam compressor is connected with the exhaust buffer tank, and the soft water tank is communicated with the exhaust buffer tank.
Further, the low-pressure stage screw rod type water vapor compressor is connected with the high-pressure stage screw rod type water vapor compressor through a low-pressure stage exhaust pipe, a high-pressure stage suction stop valve and a high-pressure stage suction filter.
Further, the low-pressure stage screw rod type water vapor compressor is connected with a steam inlet pipe through a low-pressure stage suction stop valve and a low-pressure stage suction filter.
Furthermore, the exhaust steam of the low-pressure stage screw rod type steam compressor and the exhaust steam of the high-pressure stage screw rod type steam compressor are exhausted to the atmosphere through exhaust steam exhaust pipes.
Further, a low-pressure-stage bypass valve is arranged between the suction pipe and the exhaust pipe of the low-pressure-stage screw type water vapor compressor.
Further, a high-pressure-stage bypass valve is arranged between the suction pipe and the exhaust pipe of the high-pressure-stage screw rod type water vapor compressor.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model is provided with a low-pressure stage screw rod type vapor compressor, a high-pressure stage screw rod type vapor compressor, a blower, a soft water tank and an exhaust buffer tank, and utilizes a screw rod type vapor two-stage compression system consisting of the low-pressure stage screw rod type vapor compressor and the high-pressure stage screw rod type vapor compressor, thereby solving the problem that the pressure ratio of a single-stage screw rod type vapor compression system can only be three to five times, improving the maximum pressure ratio to twenty five times, and simultaneously improving the stability, the reliability and the whole machine operation efficiency of the vapor screw rod type compression system.
By adopting the screw-type water vapor two-stage compression system, the inlet-outlet pressure ratio and the temperature rise of the system are improved, and the whole machine operation efficiency of the water vapor screw-type compression system is improved.
Drawings
FIG. 1 is a block diagram of a screw water vapor dual stage compression system of the present invention;
in the figure: 1. a low voltage stage motor; 2. a low-pressure cascade shaft device; 3. a low pressure stage screw type steam compressor; 4. a high-voltage stage motor; 5. a high-pressure cascade shaft device; 6. a high pressure stage screw steam compressor; 7. a blower; 8. a soft water tank; 9. an exhaust buffer tank; 10. a water jet pump; 11. a non-return valve; 12. a high pressure stage bypass valve; 13. a high pressure stage suction filter; 14. a high pressure stage suction stop valve; 15. a low pressure stage exhaust pipe; 16. a low pressure stage bypass valve; 17. a low pressure stage suction filter; 18. a low pressure stage suction cutoff valve; 19. a steam inlet pipe; 20. and exhausting the steam pipe.
Detailed Description
To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the utility model.
Referring to FIG. 1, the present invention provides an embodiment:
the utility model provides a screw type water vapor two-stage compression system for achieving the purpose, which comprises a low-pressure stage motor 1, a low-pressure cascade shaft device 2, a low-pressure stage screw type water vapor compressor 3, a high-pressure stage motor 4, a high-pressure cascade shaft device 5, a high-pressure stage screw type water vapor compressor 6, an air blower 7, a soft water tank 8 and an exhaust buffer tank 9, wherein a main shaft of the low-pressure stage motor 1 is connected with the low-pressure stage screw type water vapor compressor 3 in a transmission way through the low-pressure cascade shaft device 2, a main shaft of the high-pressure stage motor 4 is connected with the high-pressure stage screw type water vapor compressor 6 in a transmission way through the high-pressure cascade shaft device 5, the low-pressure stage screw type water vapor compressor 3 and the high-pressure stage screw type water vapor compressor 6 are respectively communicated with the air blower 7 and are connected with the soft water tank 8 through a water spray pump 10, and the high-pressure stage screw type water vapor compressor 6 is connected with the exhaust buffer tank 9, the soft water tank 8 is communicated with the exhaust buffer tank 9.
The utility model is provided with a low-pressure stage screw type water vapor compressor 3, a high-pressure stage screw type water vapor compressor 6, a blower 7, a soft water tank 8 and an exhaust buffer tank 9, and utilizes a screw type water vapor two-stage compression system consisting of the low-pressure stage screw type water vapor compressor 3 and the high-pressure stage screw type water vapor compressor 6, thereby solving the problem that the pressure ratio of a single-stage screw type water vapor compression system can only be three to five times, improving the maximum pressure ratio to twenty-five times, and simultaneously improving the stability, the reliability and the whole machine operation efficiency of the water vapor screw type compression system.
The adoption of the screw type water vapor two-stage compression system improves the inlet-outlet pressure ratio and temperature rise of the system, and simultaneously improves the whole machine operation efficiency of the water vapor screw type compression system.
Further, the low-pressure stage screw type water vapor compressor 3 is connected with the high-pressure stage screw type water vapor compressor 6 through a low-pressure stage exhaust pipe 15, a high-pressure stage suction stop valve 14 and a high-pressure stage suction filter 13.
A low pressure stage bleed 15, a high pressure stage suction shut-off valve 14 and a high pressure stage suction filter 13 are used to filter the entire compression system.
Further, the low-pressure stage screw type water vapor compressor 3 is connected with a steam inlet pipe 19 through a low-pressure stage suction stop valve 18 and a low-pressure stage suction filter 17.
A low pressure stage suction shut-off valve 18 and a low pressure stage suction filter 17 are used to filter the entire compression system.
Further, the exhaust steam of the low-pressure stage screw type water vapor compressor 3 and the exhaust steam of the high-pressure stage screw type water vapor compressor 6 are exhausted to the atmosphere through an exhaust steam pipe 20.
The exhaust steam discharging pipe 20 is used for discharging exhaust steam of the low-pressure stage screw rod type water vapor compressor 3 and exhaust steam of the high-pressure stage screw rod type water vapor compressor 6 together, so that the discharging process is simplified.
Further, a low-pressure stage bypass valve 16 is arranged between the suction pipe and the exhaust pipe of the low-pressure stage screw type water vapor compressor 3.
The low-pressure stage bypass valve 16 is used for adjusting the air inflow of the low-pressure stage screw type water vapor compressor 3, and plays a role in protection and adjustment.
Further, a high-pressure stage bypass valve 12 is arranged between the air suction pipe and the air exhaust pipe of the high-pressure stage screw rod type water vapor compressor 6.
The high-pressure stage bypass valve 12 is used for adjusting the air inflow of the high-pressure stage screw type water vapor compressor 6, and plays a role in protection and adjustment.
Claims (6)
1. A screw type water vapor double-stage compression system is characterized in that: the device comprises a low-pressure stage motor (1), a low-pressure cascade shaft device (2), a low-pressure stage screw rod type steam compressor (3), a high-pressure stage motor (4), a high-pressure cascade shaft device (5), a high-pressure stage screw rod type steam compressor (6), an air blower (7), a soft water tank (8) and an exhaust buffer tank (9), wherein a main shaft of the low-pressure stage motor (1) is in transmission connection with the low-pressure stage screw rod type steam compressor (3) through the low-pressure cascade shaft device (2), a main shaft of the high-pressure stage motor (4) is in transmission connection with the high-pressure stage screw rod type steam compressor (6) through the high-pressure cascade shaft device (5), the low-pressure stage screw rod type steam compressor (3) and the high-pressure stage screw rod type steam compressor air blower (6) are respectively communicated with the low-pressure stage screw rod type steam compressor (7) and the soft water tank (8) through a water spray pump (10), the high-pressure-stage screw rod type steam compressor (6) is connected with the exhaust buffer tank (9), and the soft water tank (8) is communicated with the exhaust buffer tank (9).
2. The dual stage compression system of water vapor screw of claim 1, wherein: the low-pressure stage screw rod type water vapor compressor (3) is connected with the high-pressure stage screw rod type water vapor compressor (6) through a low-pressure stage exhaust pipe (15), a high-pressure stage suction stop valve (14) and a high-pressure stage suction filter (13).
3. The twin stage screw water vapor compression system of claim 1 in which: the low-pressure stage screw rod type water vapor compressor (3) is connected with a steam inlet pipe (19) through a low-pressure stage suction stop valve (18) and a low-pressure stage suction filter (17).
4. The twin stage screw water vapor compression system of claim 1 in which: and exhaust steam of the low-pressure-stage screw rod type steam compressor (3) and exhaust steam of the high-pressure-stage screw rod type steam compressor (6) are exhausted to the atmosphere through an exhaust steam pipe (20).
5. The dual stage compression system of water vapor screw of claim 1, wherein: and a low-pressure stage bypass valve (16) is arranged between the air suction pipe and the air exhaust pipe of the low-pressure stage screw rod type steam compressor (3).
6. The twin stage screw water vapor compression system of claim 1 in which: and a high-pressure-stage bypass valve (12) is arranged between the air suction pipe and the air exhaust pipe of the high-pressure-stage screw rod type steam compressor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121480321.8U CN217002275U (en) | 2021-07-01 | 2021-07-01 | Screw type water vapor two-stage compression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121480321.8U CN217002275U (en) | 2021-07-01 | 2021-07-01 | Screw type water vapor two-stage compression system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217002275U true CN217002275U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121480321.8U Active CN217002275U (en) | 2021-07-01 | 2021-07-01 | Screw type water vapor two-stage compression system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217002275U (en) |
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2021
- 2021-07-01 CN CN202121480321.8U patent/CN217002275U/en active Active
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