CN211575580U - Screw compression refrigeration heating system with two-stage economizer - Google Patents
Screw compression refrigeration heating system with two-stage economizer Download PDFInfo
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- CN211575580U CN211575580U CN202020137977.9U CN202020137977U CN211575580U CN 211575580 U CN211575580 U CN 211575580U CN 202020137977 U CN202020137977 U CN 202020137977U CN 211575580 U CN211575580 U CN 211575580U
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- economizer
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- screw compressor
- heat exchange
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Abstract
The utility model discloses a screw compression refrigeration heating system with two-stage economizer, the outlet of the screw compressor is connected with the inlet of the condenser, the outlet of the condenser is divided into two paths, one path is connected with the heat exchange tube inlet of a first economizer through a first throttle valve, the other path is connected with the shell side inlet of the first economizer, the heat exchange tube outlet of the first economizer is connected with a first air supplement port of the screw compressor close to the exhaust end; the shell side outlet of the first economizer is divided into two paths, one path of the outlet is connected with the inlet of the heat exchange tube of the second economizer through a second throttling valve, the other path of the outlet is connected with the shell side inlet of the second economizer, and the outlet of the heat exchange tube of the second economizer is connected with a second air supplement port of the screw compressor, which is close to the air suction end; the shell side outlet of the second economizer is connected with the inlet of the evaporator through a third throttling valve, and the outlet of the evaporator is connected with the inlet of the screw compressor. The utility model discloses through two times middle tonifying qi of two-stage economic ware, can effectively improve the thermal behavior of system.
Description
Technical Field
The utility model relates to a refrigeration technology field especially relates to a take screw rod compression refrigeration heating system of two-stage economizer.
Background
The screw compressor has high volumetric efficiency, is widely used for a refrigeration air-conditioning system, can utilize intermediate air supplement to improve the efficiency of the system due to the structural characteristics of the screw compressor, and the conventional single screw compressor is provided with intermediate air supplement which is usually one-time air supplement to realize single refrigeration or heating, so that the screw compressor needs to be further improved to further reduce the power consumption of the screw compressor, effectively improve the efficiency of the system and save energy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take screw rod compression refrigeration heating system of two-stage economizer to prior art's defect.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
the utility model discloses a screw compression refrigeration heating system with two-stage economizer, which comprises a screw compressor, a condenser, a first economizer, a second economizer and an evaporator; the outlet of the screw compressor is connected with the inlet of the condenser, the outlet of the condenser is divided into two paths, one path is connected with the inlet of the heat exchange tube of the first economizer through the first throttle valve, and the other path is connected with the inlet of the shell side of the first economizer; the outlet of the heat exchange tube of the first economizer is connected with a first air supplement port of the screw compressor, which is close to the exhaust end; the shell side outlet of the first economizer is divided into two paths, one path of the outlet is connected with the inlet of the heat exchange tube of the second economizer through a second throttling valve, and the other path of the outlet is connected with the shell side inlet of the second economizer; an outlet of a heat exchange tube of the second economizer is connected with a second air supplement port of the screw compressor, which is close to the air suction end; the shell side outlet of the second economizer is connected with the inlet of the evaporator through a third throttle valve, and the outlet of the evaporator is connected with the inlet of the screw compressor.
The utility model discloses a take screw rod compression refrigeration heating system of two-stage economizer sets up two tonifying qi mouths along the cylinder axial, and tonifying qi in the middle of through two-stage economizer twice can effectively improve the thermal performance of system, energy saving consumed.
Drawings
Fig. 1 is a schematic view of the screw compression refrigeration heating system with two-stage economizer of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1, the screw compression refrigeration heating system with two-stage economizer of the present invention comprises:
the system comprises a screw compressor 1, a condenser 2, a first throttling valve 3, a first economizer 4, a second throttling valve 5, a second economizer 6, a third throttling valve 7 and an evaporator 8; the outlet of the screw compressor 1 is connected with the inlet of the condenser 2, the outlet of the condenser 2 is divided into two paths, one path is connected with the inlet of a heat exchange tube of the first economizer 4 through the first throttle valve 3, the other path is connected with the inlet of the shell side of the first economizer 4, and the outlet of the heat exchange tube of the first economizer 4 is connected with a first air supplement port close to the exhaust end of the screw compressor 1; the shell side outlet of the first economizer 4 is divided into two paths, one path of the outlet is connected with the inlet of a heat exchange tube of the second economizer 6 through a second throttle valve 5, the other path of the outlet is connected with the shell side inlet of the second economizer 6, and the outlet of the heat exchange tube of the second economizer 6 is connected with a second air supplement port close to the air suction end of the screw compressor 1; the shell-side outlet of the second economizer 6 is connected via a third throttle valve 7 to the inlet of an evaporator 8, the outlet of the evaporator 8 being connected to the inlet of the screw compressor 1.
It should be noted that, the utility model discloses in, screw compressor is last to be close to the end of breathing in and has seted up first tonifying qi mouth, second tonifying qi mouth edge screw compressor's cylinder axial direction arranges to interval predetermined distance, and arrange on same axis.
When the system is operated, high-temperature and high-pressure gas discharged by the screw compressor 1 enters the condenser 2, liquid which is subjected to heat exchange with a cooling medium to release heat for condensation is divided into two paths, one path of the gas enters a heat exchange tube of the first economizer 4 through the first throttle valve 3 in a throttling and pressure reducing mode, the gas enters the shell side of the first economizer 4 through the other path of the gas for heat exchange, the gas which absorbs heat and is evaporated flows out of the heat exchange tube of the first economizer 4 and enters a machine body through a first air supplementing port of the screw compressor 1; the subcooled liquid on the shell side of the first economizer 4 is divided into two paths, one path of subcooled liquid enters a heat exchange tube of a second economizer 6 through a second throttling valve 5 in a throttling and pressure reducing mode, the subcooled liquid and the subcooled liquid enter the heat exchange tube on the shell side of the second economizer 6 in a heat exchange mode, gas which absorbs heat and is evaporated flows out of an outlet of the heat exchange tube of the second economizer 6 and enters a machine body through a second air supplementing port, close to an air suction end, of the screw compressor 1; the liquid with the supercooled shell side of the second economizer 6 enters an evaporator 8 through throttling and pressure reduction of a third throttle valve 7, the gas which absorbs heat and is evaporated enters the screw compressor 1, the gas compressed by the initial section is mixed with the gas supplemented by the second gas supplementing port, the second section of compression is continued, the gas is mixed with the gas supplemented by the first gas supplementing port and then is continuously compressed to an exhaust port, and the gas is discharged out of the screw compressor 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. The screw compression refrigeration heating system with the two-stage economizer is characterized by comprising a screw compressor, a condenser, a first economizer, a second economizer and an evaporator; the outlet of the screw compressor is connected with the inlet of the condenser, the outlet of the condenser is divided into two paths, one path is connected with the inlet of the heat exchange tube of the first economizer through the first throttle valve, and the other path is connected with the inlet of the shell side of the first economizer; the outlet of the heat exchange tube of the first economizer is connected with a first air supplement port of the screw compressor, which is close to the exhaust end; the shell side outlet of the first economizer is divided into two paths, one path of the outlet is connected with the inlet of the heat exchange tube of the second economizer through a second throttling valve, and the other path of the outlet is connected with the shell side inlet of the second economizer; an outlet of a heat exchange tube of the second economizer is connected with a second air supplement port of the screw compressor, which is close to the air suction end; the shell side outlet of the second economizer is connected with the inlet of the evaporator through a third throttle valve, and the outlet of the evaporator is connected with the inlet of the screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020137977.9U CN211575580U (en) | 2020-01-21 | 2020-01-21 | Screw compression refrigeration heating system with two-stage economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020137977.9U CN211575580U (en) | 2020-01-21 | 2020-01-21 | Screw compression refrigeration heating system with two-stage economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211575580U true CN211575580U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020137977.9U Expired - Fee Related CN211575580U (en) | 2020-01-21 | 2020-01-21 | Screw compression refrigeration heating system with two-stage economizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN211575580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141044A (en) * | 2020-01-21 | 2020-05-12 | 天津商业大学 | Screw compression refrigeration heating system with two-stage economizer |
-
2020
- 2020-01-21 CN CN202020137977.9U patent/CN211575580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141044A (en) * | 2020-01-21 | 2020-05-12 | 天津商业大学 | Screw compression refrigeration heating system with two-stage economizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20220121 |