CN212457488U - Double-machine double-stage compressor unit integrating plate shell cold and oil cold - Google Patents
Double-machine double-stage compressor unit integrating plate shell cold and oil cold Download PDFInfo
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- CN212457488U CN212457488U CN202021202329.3U CN202021202329U CN212457488U CN 212457488 U CN212457488 U CN 212457488U CN 202021202329 U CN202021202329 U CN 202021202329U CN 212457488 U CN212457488 U CN 212457488U
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- stage compressor
- pressure stage
- intercooler
- heat exchange
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Abstract
The utility model discloses an integrated two-stage compressor unit of cold and oily cold in shell, including low-pressure stage compressor, high-pressure stage compressor, intercooler and oil separator, low-pressure stage compressor communicates with high-pressure stage compressor through first exhaust duct, high-pressure stage compressor passes through the second exhaust duct and is connected with the oil separator, still includes the cold heat transfer part of oil, the cold heat transfer part of oil with the intercooler integration sets up in an organic whole, forms integrated heat exchanger; the intercooler part of the integrated heat exchanger is communicated with the first exhaust pipeline through an exhaust pipe, and the oil-cooled heat exchange part and the oil separator form an oil inlet pipeline, a low-pressure stage compressor and a high-pressure stage compressor and an oil return pipeline. The utility model aims at providing a two-machine double-stage compressor unit that cold compact structure, heat exchange efficiency are high, the cost of manufacture is low in cold and oil in the integrated lamella formula.
Description
Technical Field
The utility model particularly relates to a two-stage compressor unit of cold and oily cold in integrated shell and shell.
Background
Under the evaporating temperature of-40 ℃, single-stage compression is difficult to operate and has poor economical efficiency, and a double-machine double-stage compressor unit is generally adopted. At present, because the plate-shell type heat exchanger has high heat exchange efficiency and small occupied area, the plate-shell type heat exchanger is often adopted for an intercooler and oil cooling, but the plate-shell type heat exchanger has complex manufacturing process and high cost, the cost of the double-machine double-stage unit is overhigh, and the application of the double-machine double-stage unit in the low-temperature working condition refrigeration field is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-machine double-stage compressor unit that cold compact structure, heat exchange efficiency are high, the cost of manufacture is low in cold and oil in the integrated lamella formula.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
a double-compressor double-stage compressor unit integrating inter-cooling and oil cooling of a plate shell comprises a low-pressure stage compressor, a high-pressure stage compressor, an intercooler and an oil separator, wherein the low-pressure stage compressor is communicated with the high-pressure stage compressor through a first exhaust pipeline, the high-pressure stage compressor is connected with the oil separator through a second exhaust pipeline, and the double-compressor double-stage compressor unit further comprises an oil-cooling heat exchange part, and the oil-cooling heat exchange part and the intercooler are integrally arranged to form an integrated heat exchanger; the intercooler part of the integrated heat exchanger is communicated with the first exhaust pipeline through an exhaust pipe, and the oil-cooled heat exchange part and the oil separator form an oil inlet pipeline, a low-pressure stage compressor and a high-pressure stage compressor and an oil return pipeline.
Optionally, the integrated heat exchanger includes an external casing, a first heat exchange core corresponding to an intercooler and a second heat exchange core corresponding to an oil-cooled heat exchange portion, the intercooler is provided with a first liquid inlet pipe, a first liquid outlet pipe, and a corresponding port of a gas outlet pipe communicated with the first gas outlet pipe, and the first liquid outlet pipe is branched from a throttling pipeline and flows back into the intercooler; and the oil-cooled heat exchange part is provided with a second liquid inlet pipe, a second liquid outlet pipe, an oil outlet pipe communicated with the oil outlet pipe of the oil separator and corresponding ports of an oil return header pipe communicated with the low-pressure stage compressor and the high-pressure stage compressor.
Optionally, a pressure transmitter, a temperature sensor and a suction filter are arranged on the air inlet pipeline of the low-pressure stage compressor.
Optionally, a pressure transmitter and a temperature sensor are arranged on the second exhaust pipeline.
Optionally, an exhaust duct is provided on the oil separator.
The technical scheme of the utility model, have following advantage:
the embodiment provides an integrated heat exchanger which is adopted to replace an intercooler and an oil cooler which are separately arranged on the existing pipeline, so that the overall structure of the double-machine double-stage unit is optimized and compact, the mutual influence interference among the pipelines is avoided, the occupied area is reduced, and the manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of an integrated heat exchanger.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The dual-stage compressor unit integrating inter-cooling and oil cooling in a plate shell of the embodiment is shown in fig. 1, and includes a low-pressure stage compressor 1, a high-pressure stage compressor 2, an oil separator 3, and an integrated heat exchanger 4 connected by a pipeline, a valve, etc., the low-pressure stage compressor is connected with a first exhaust pipeline 5, the first exhaust pipeline 5 is connected with the high-pressure stage compressor 2, the high-pressure stage compressor 2 is connected with a second exhaust pipe 6, the second exhaust pipeline 6 is connected with the oil separator 3, the oil separator 3 is connected with an oil outlet pipe 7 and an exhaust pipeline 19, the oil outlet pipe is connected with the integrated heat exchanger 4, the integrated heat exchanger 4 is connected with an oil return header pipe 8, the oil return header pipe 8 is connected with a first oil return pipe 9 and a second oil return pipe 10, the first oil return pipe 9 is connected with the low-pressure stage compressor 1, the gas outlet pipe 11 is connected with the first gas exhaust pipe 5, and the integrated heat exchanger is connected with a first liquid inlet pipe 13, a second liquid inlet pipe 14, a first liquid outlet pipe 15 and a second liquid outlet pipe 16; the integrated heat exchanger 4 integrates an intercooler and an oil cooling heat exchange function and is a combined plate-shell heat exchanger.
Preferably, the low-pressure stage compressor is connected to an intake duct 20, which is provided with a pressure transmitter 21, a temperature sensor 22 and an intake filter 23.
Preferably, the second exhaust pipe is provided with a pressure transmitter 17 and a temperature sensor 18.
Specifically, referring to fig. 2, the integrated heat exchanger 4 has a housing 4a, a first heat exchange core 4m and a second heat exchange core 4n are disposed in the housing 4a, and a first liquid inlet pipe orifice 4b, a second liquid inlet pipe orifice 4c, a first liquid outlet pipe orifice 4g and a second liquid outlet pipe orifice 4f are disposed on the housing 4 a; the first heat exchange core 4m is correspondingly provided with a throttling liquid inlet 4h and a gas outlet 4k, and the second heat exchange core 4n is correspondingly provided with an oil inlet 4e and an oil outlet 4 d. The air outlet 4k is connected with the first exhaust pipe, and the throttling liquid inlet 4h is connected with the first liquid outlet pipe 15. The oil inlet 4e is connected with the oil separator 3, and the oil outlet 4d is respectively connected with the low-pressure stage compressor 1 and the high-pressure stage compressor 2 through an oil return header pipe 8.
The working process of the utility model is as follows: the low-pressure stage compressor 1 sucks refrigerant steam from the air suction pipe 20, the refrigerant steam is cooled by gas from the air outlet 4k and then enters the high-pressure stage compressor 2, the refrigerant steam is compressed and then discharged into the oil separator 3 for oil-gas separation, and the separated refrigerant gas is output through the exhaust pipe 19; lubricating oil separated by the oil separator 3 enters the integrated heat exchanger 4 through the oil inlet 4e, and returns to the low-pressure stage compressor 1 and the high-pressure stage compressor 2 through the oil return header pipe 8 after heat exchange. One path of refrigerant liquid led out from the first liquid outlet pipe 15 enters the integrated heat exchanger 4 through the throttle liquid inlet 4h after being throttled, and refrigerant gas generated after heat exchange enters the high-pressure stage compressor 2 together with gas discharged from the low-pressure stage compressor 1 through the gas outlet 4 k.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (5)
1. The double-compressor double-stage compressor unit integrating inter-cooling and oil cooling of a plate shell is characterized by comprising a low-pressure stage compressor, a high-pressure stage compressor, an intercooler and an oil separator, wherein the low-pressure stage compressor is communicated with the high-pressure stage compressor through a first exhaust pipeline, the high-pressure stage compressor is connected with the oil separator through a second exhaust pipeline, the double-compressor double-stage compressor unit further comprises an oil-cooling heat exchange part, and the oil-cooling heat exchange part and the intercooler are integrally arranged to form an integrated heat exchanger; the intercooler part of the integrated heat exchanger is communicated with the first exhaust pipeline through an exhaust pipe, and the oil-cooled heat exchange part and the oil separator form an oil inlet pipeline, a low-pressure stage compressor and a high-pressure stage compressor and an oil return pipeline.
2. The unit of claim 1, wherein the integrated heat exchanger comprises an outer shell, a first heat exchange core corresponding to an intercooler and a second heat exchange core corresponding to an oil-cooled heat exchange portion, the intercooler is provided with a first liquid inlet pipe, a first liquid outlet pipe, and a corresponding port of a gas outlet pipe communicated with the first gas outlet pipe, and the first liquid outlet pipe branches out of a throttling pipeline and flows back into the intercooler; and the oil-cooled heat exchange part is provided with a second liquid inlet pipe, a second liquid outlet pipe, an oil outlet pipe communicated with the oil outlet pipe of the oil separator and corresponding ports of an oil return header pipe communicated with the low-pressure stage compressor and the high-pressure stage compressor.
3. The unit of claim 1 or 2, wherein a pressure transmitter, a temperature sensor and a suction filter are arranged on an air inlet pipeline of the low-pressure stage compressor.
4. The unit according to claim 1 or 2, wherein the second exhaust duct is provided with a pressure transmitter and a temperature sensor.
5. The twin-stage compressor unit integrating cooling in a plate shell and oil cooling according to claim 4, wherein the oil separator is provided with an exhaust duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202329.3U CN212457488U (en) | 2020-06-27 | 2020-06-27 | Double-machine double-stage compressor unit integrating plate shell cold and oil cold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021202329.3U CN212457488U (en) | 2020-06-27 | 2020-06-27 | Double-machine double-stage compressor unit integrating plate shell cold and oil cold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212457488U true CN212457488U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021202329.3U Active CN212457488U (en) | 2020-06-27 | 2020-06-27 | Double-machine double-stage compressor unit integrating plate shell cold and oil cold |
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| Country | Link |
|---|---|
| CN (1) | CN212457488U (en) |
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2020
- 2020-06-27 CN CN202021202329.3U patent/CN212457488U/en active Active
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