CN-224230401-U - Throttling pipeline structure of air suspension variable-frequency centrifugal water chilling unit

CN224230401UCN 224230401 UCN224230401 UCN 224230401UCN-224230401-U

Abstract

The utility model discloses a throttling pipeline structure of a gas suspension variable-frequency centrifugal water chilling unit, which belongs to the technical field of water chilling units and comprises a compressor, an evaporator, a condenser and an economizer, wherein the compressor is communicated with the economizer through a gas supplementing pipeline, the compressor is communicated with the condenser through an exhaust pipeline, the compressor is communicated with the evaporator through a shutdown pipeline and a suction pipeline, the condenser is communicated with the evaporator through a hot gas bypass pipeline, the condenser is communicated with the economizer through a primary throttling pipeline, and the economizer is communicated with the evaporator through a secondary throttling pipeline. The throttle pipeline is connected with the container by adopting the flange, so that the disassembly and the installation of operators and the subsequent maintenance of the unit are facilitated, and meanwhile, the problem of overlarge opening setting of the electric ball valve can be effectively prevented by arranging the electric ball valve and the throttle plate in series, so that the water chilling unit is better adapted, and the water chilling unit can stably run to achieve an ideal refrigerating effect.

Inventors

WANG YAN
ZHANG RUI
Yin Mengcong
Li Angheng

Assignees

维克（天津）有限公司

Dates

Publication Date: 20260512
Application Date: 20250527

Claims (10)

1. The utility model provides a throttle pipeline structure of gas suspension frequency conversion centrifugal chiller, includes compressor, evaporimeter, condenser and economic ware, communicates through the moisturizing pipeline between compressor and the economic ware, communicates through exhaust pipe between compressor and the condenser, communicates through shut down pipeline and suction line between compressor and the evaporimeter, communicates through the steam bypass pipeline between condenser and the evaporimeter, its characterized in that, communicates through one-level throttle pipeline between condenser and the economic ware, communicates through second grade throttle pipeline between economic ware and the evaporimeter.
2. The throttling pipeline structure of an air suspension variable frequency centrifugal chiller according to claim 1 further comprising a main controller, wherein a first electric ball valve is arranged on the primary throttling pipeline, a second electric ball valve is arranged on the secondary throttling pipeline, and the main controller is electrically connected with the first electric ball valve and the second electric ball valve, so that the valve opening of the first electric ball valve and/or the second electric ball valve is controlled by the main controller.
3. The throttling pipeline structure of the air suspension variable frequency centrifugal chiller according to claim 2, wherein the primary throttling pipeline is provided with a first flange and a second flange, the primary throttling pipeline is connected with the condenser flange through the first flange, and the primary throttling pipeline is connected with the economizer flange through the second flange.
4. The throttling pipeline structure of the air suspension variable frequency centrifugal chiller according to claim 3 wherein, The first-stage throttling pipeline comprises a first steel pipe pipeline, a second steel pipe pipeline, a third steel pipe pipeline and a fourth steel pipe pipeline, A first flange and a third flange are arranged at two ends of the first steel pipe, A fourth flange and a fifth flange are arranged at two ends of the second steel pipe, A sixth flange and a seventh flange are arranged at two ends of the third steel pipe, Two ends of the fourth steel pipe line are provided with a second flange and an eighth flange, The first steel pipe pipeline is connected with the second steel pipe pipeline through a third flange and a fourth flange; the second steel pipe pipeline is connected with the third steel pipe pipeline through a fifth flange and Six Codes th flange; the third steel pipe pipeline is connected with the fourth steel pipe pipeline through a seventh flange and an eighth flange; the first electric ball valve is positioned on the second steel pipe.
5. The throttling pipeline structure of an air suspension variable frequency centrifugal chiller according to claim 4, characterized in that a first throttling orifice plate is arranged between the seventh flange and the eighth flange.
6. The throttling pipeline structure of the air suspension variable frequency centrifugal chiller according to claim 4, characterized in that, A first shut-off valve and a drying filter barrel are arranged on the first steel pipe pipeline, the first shut-off valve is arranged at the downstream of the first flange, and the drying filter barrel is arranged at the downstream of the first shut-off valve; And a second shut-off valve is arranged on the fourth steel pipe pipeline and is positioned at the upstream of the second flange.
7. The throttling pipeline structure of the air suspension variable frequency centrifugal chiller according to claim 2, wherein a ninth flange and a tenth flange are arranged on the secondary throttling pipeline, the secondary throttling pipeline is connected with the economizer flange through the ninth flange, and the secondary throttling pipeline is connected with the evaporator flange through the tenth flange.
8. The throttling pipeline structure of the air suspension variable frequency centrifugal chiller according to claim 7 is characterized in that, The secondary throttling pipeline comprises a fifth steel pipe pipeline, a sixth steel pipe pipeline, a seventh steel pipe pipeline and an eighth steel pipe pipeline, A ninth flange and an eleventh flange are arranged at two ends of the fifth steel pipe, A twelfth flange and a thirteenth flange are arranged at two ends of the sixth steel pipe, A fourteenth flange and a fifteenth flange are arranged at two ends of the seventh steel pipe, Sixteenth flanges and tenth flanges are arranged at two ends of the eighth steel pipe, The fifth steel pipe pipeline is connected with the sixth steel pipe pipeline through an eleventh flange and a twelfth flange; The sixth steel pipe pipeline is connected with the seventh steel pipe pipeline through a thirteenth flange and a fourteenth flange; The seventh steel pipe line is connected with the eighth steel pipe line through a fifteenth flange and a sixteenth flange; the second electric ball valve is positioned on the sixth steel pipe.
9. The throttling pipeline structure of an air suspension variable frequency centrifugal chiller according to claim 8, characterized in that a second throttling orifice is arranged between the fifteenth flange and the sixteenth flange.
10. The throttling pipeline structure of an air suspension variable frequency centrifugal chiller according to claim 8, characterized in that a third shut-off valve is arranged on the fifth steel pipe, the third shut-off valve is arranged downstream of the ninth flange, a fourth shut-off valve is arranged on the eighth steel pipe, and the fourth shut-off valve is arranged upstream of the tenth flange.

Description

Throttling pipeline structure of air suspension variable-frequency centrifugal water chilling unit Technical Field The utility model belongs to the technical field of water coolers, and particularly relates to a throttling pipeline structure of a gas suspension variable-frequency centrifugal water chiller. Background The throttling mechanism is one of the important components of the refrigeration device and functions to throttle saturated liquid (or subcooled liquid) at the condensing pressure in the condenser or receiver to the evaporating pressure and evaporating temperature, while adjusting the flow of refrigerant into the evaporator in accordance with the load change. In the air suspension chiller, if the liquid supply amount of the throttling mechanism to the evaporator is too large compared with the load of the evaporator, part of refrigerant liquid enters the compressor together with gaseous refrigerant to cause liquid impact, and conversely, if the liquid supply amount is too small compared with the load of the evaporator, the heat exchange area of the evaporator cannot fully play a role, even the evaporation pressure is reduced, the refrigerating capacity of the system is reduced, and the refrigerating coefficient is reduced. Therefore, a proper throttling device is selected according to the characteristics of the water chilling unit and the refrigerating effect, and the device has important significance on the refrigerating capacity and the running stability of the unit. Disclosure of utility model In order to solve the technical problem that the throttling effect of the throttling mechanism is poor in the background art, a throttling pipeline structure of the air suspension variable frequency centrifugal water chilling unit is provided, so that the problem is solved. In order to achieve the above purpose, the specific technical scheme of the throttling pipeline structure of the air suspension variable frequency centrifugal water chilling unit is as follows: The utility model provides a throttle pipeline structure of gas suspension frequency conversion centrifugal chiller, includes compressor, evaporimeter, condenser and economic ware, communicates through the moisturizing pipeline between compressor and the economic ware, communicates through exhaust pipe between compressor and the condenser, communicates through shut down pipeline and suction line between compressor and the evaporimeter, communicates through the steam bypass pipeline between condenser and the evaporimeter, communicates through one-level throttle pipeline between condenser and the economic ware, communicates through second grade throttle pipeline between economic ware and the evaporimeter. Further, the automatic control device further comprises a main controller, a first electric ball valve is arranged on the primary throttle pipeline, a second electric ball valve is arranged on the secondary throttle pipeline, and the main controller is electrically connected with the first electric ball valve and the second electric ball valve, so that the valve opening of the first electric ball valve and/or the second electric ball valve is controlled through the main controller. Further, the primary throttling pipeline is provided with a first flange and a second flange, the primary throttling pipeline is connected with the condenser flange through the first flange, and the primary throttling pipeline is connected with the economizer flange through the second flange. Further, the first-stage throttling pipeline comprises a first steel pipe pipeline, a second steel pipe pipeline, a third steel pipe pipeline and a fourth steel pipe pipeline, A first flange and a third flange are arranged at two ends of the first steel pipe, A fourth flange and a fifth flange are arranged at two ends of the second steel pipe, A sixth flange and a seventh flange are arranged at two ends of the third steel pipe, Two ends of the fourth steel pipe line are provided with a second flange and an eighth flange, The first steel pipe pipeline is connected with the second steel pipe pipeline through a third flange and a fourth flange; the second steel pipe pipeline is connected with the third steel pipe pipeline through a fifth flange and Six Codes th flange; the third steel pipe pipeline is connected with the fourth steel pipe pipeline through a seventh flange and an eighth flange; the first electric ball valve is positioned on the second steel pipe. Further, a first orifice plate is disposed between the seventh flange and the eighth flange. Further, a first shut-off valve and a drying filter barrel are arranged on the first steel pipe, the first shut-off valve is arranged at the downstream of the first flange, and the drying filter barrel is arranged at the downstream of the first shut-off valve; And a second shut-off valve is arranged on the fourth steel pipe pipeline and is positioned at the upstream of the second flange. Further, a ninth flange and a tenth flange are