CN107559195B - Built-in economizer formula doublestage compressor - Google Patents
Built-in economizer formula doublestage compressor Download PDFInfo
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- CN107559195B CN107559195B CN201710928502.4A CN201710928502A CN107559195B CN 107559195 B CN107559195 B CN 107559195B CN 201710928502 A CN201710928502 A CN 201710928502A CN 107559195 B CN107559195 B CN 107559195B
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- economizer
- shell
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- 238000002955 isolation Methods 0.000 claims abstract description 5
- 239000003507 refrigerant Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention discloses a built-in economizer type double-stage compressor which comprises a shell, wherein a transverse straight driving crankshaft is arranged in the shell, one end of the driving crankshaft is provided with a pump assembly I, the other end of the driving crankshaft is provided with a pump assembly II, the outer side of the pump assembly II is provided with a high-low pressure isolation plate, two ends of the shell are packaged through an end cover I and an end cover II to form a closed cavity, the high-low pressure isolation plate divides the cavity into a cavity I and a cavity II, an air suction pipe and an air discharge pipe are respectively communicated with the two cavities, and an economizer is sleeved on the driving crankshaft at the inner side of the pump assembly II in the cavity I. The economizer is positioned in the compressor, so that the system space is not occupied completely, and the problem that the economizer in the prior art occupies space independently is solved; the economizer is positioned in the compressor, the pressure difference between the inside and the outside of the economizer is small, a pipe with smaller thickness can be selected, and the heat exchange efficiency is improved on the basis of reducing the cost.
Description
Technical field:
the invention relates to the field of compressors, in particular to a built-in economizer type two-stage compressor.
The background technology is as follows:
The application of the heat pump water heater is increasingly wide in recent years, however, when the pressure ratio is high, the conventional heat pump system has the technical problems of low compressor efficiency, high exhaust temperature and the like, so that the heat pump water heater becomes a technical bottleneck of industry development, and the adoption of a two-stage compression system or a cascade refrigeration system is an effective way for solving the technical problem (namely, high temperature difference) under the high pressure ratio, however, due to the excessively complex system and cost factors, a two-stage compression (or cascade) heat pump product in the true sense does not exist at present. Through analysis and research, it is found that the injection of a refrigerant with a certain intermediate pressure into a closed cylinder in the compression process can increase the gas delivery of the compressor, thereby improving the heating capacity and COP, which becomes an effective solution for solving various technical problems of the heat pump under the condition of high pressure ratio, namely, the refrigeration system with an economizer.
The conventional economizer is an independent component in the refrigeration system, a separate placing space is required to be set up for the economizer, heat insulation treatment is carried out to prevent the economizer from exchanging heat with the surrounding environment, a special refrigerant loop is provided, the structure is relatively complex, the occupied space is large, and the cost is high.
The invention comprises the following steps:
The invention aims to make up the defects of the prior art and provides a built-in economizer type two-stage compressor, wherein two sets of pump assemblies are mainly utilized, a gas supplementing chamber is formed in the compressor, and an economizer is built in the chamber, and the economizer has the characteristics of high heat exchange efficiency, small occupied space and low cost.
The invention is realized by the following technical scheme:
The utility model provides a built-in economic ware formula doublestage compressor, is including casing (3), be equipped with a horizontal straight driving crankshaft (6) in casing (3), its characterized in that: the utility model discloses a pump assembly, including driving crankshaft (6), pump assembly I (2), pump assembly II (12) are installed to the one end of driving crankshaft (6), high-low pressure division board (10) are installed in the outside of pump assembly II (12), the both ends of casing (3) are packaged through end cover I (1) and end cover II (9) and are formed a confined cavity, high-low pressure division board (10) will cut apart into cavity I (18) and cavity II (19) with this cavity, communicate respectively on its two cavities and have breathing pipe (19) and blast pipe (17), the cover is equipped with economic ware (7) on driving crankshaft (6) of the inboard of pump assembly II (12) in cavity I (18).
The motor stator (4) and the motor rotor (5) are arranged on the driving crankshaft (6) in the shell (3).
The economizer (7) consists of a pipe I (16) and a pipe II (15), wherein the pipe I (16) is positioned inside the pipe II (15), and two ends of the pipe I (16) are respectively connected with a joint I (8) and a joint II (13) on the shell (3).
The inside of the tube I (16) is a main loop refrigerant of the refrigerating system, an interlayer channel (20) formed by the tube II (15) and the tube I (16) is a once-shut-off refrigerant, an inlet (21) of the interlayer channel (20) is connected with a joint III (14) on the shell (3), and an outlet (22) of the interlayer channel (20) is arranged in the shell (3);
The tube I (16) is a high-efficiency heat exchange tube in the forms of a common tube, a corrugated tube, an inner spiral tube or an outer spiral tube.
The economizer (7) is a plate heat exchanger formed by stacking annular or fan-shaped metal sheets.
The plate heat exchanger is provided with two channels, namely a channel I and a channel II, wherein the channel I is internally provided with a main loop refrigerant of the system, two ends of the channel I are respectively connected with a connector I (8) and a connector II (13) on the shell (3), the channel II is internally provided with a refrigerant after interception once, one end of the channel II is connected with a connector III (14) on the shell (3), and the other end of the channel II is opened inside the shell (3).
The invention has the advantages that:
1. The economizer is positioned in the compressor, so that the system space is not occupied completely, and the problem that the economizer in the prior art occupies space independently is solved;
2. The economizer is positioned in the compressor, the pressure difference between the inside and the outside of the economizer is small, a pipe with smaller thickness can be selected, the heat exchange efficiency is improved on the basis of reducing the cost, and compared with the prior art, the economizer has low cost and high heat exchange efficiency;
3. The refrigerant in the economic gas is required to exchange heat with the refrigerant in the strong chamber I of the compressor, so that any heat preservation measures are not required to be taken for the economizer, and the heat insulation treatment problem of the heat exchanger in the prior art is solved.
Description of the drawings:
fig. 1 is a schematic view of the external structure of the present invention.
Fig. 2 is an internal cross-sectional view of the present invention.
FIG. 3 is a schematic view of the construction of the economizer of the present invention.
Fig. 4 is a partial enlarged view of fig. 3.
In the figure: 1. end cap i 2, pump assembly i 3, housing 4, motor stator 5, motor rotor 6, drive crankshaft 7, economizer 8, fitting i 9, end cap ii 10, high and low pressure isolation plate 11, exhaust pipe 12, pump assembly ii 13, fitting ii 14, fitting iii 15, pipe ii 16, pipe i 17, intake pipe 18, chamber i 19, chamber ii 20, sandwich passage 21, inlet 22, outlet.
The specific embodiment is as follows:
See the drawings.
The utility model provides a built-in economic ware formula doublestage compressor, is including casing 3, be equipped with a horizontal straight driving crankshaft 6 in the casing 3, its characterized in that: the pump assembly I2 is installed to one end of driving crankshaft 6, and pump assembly II 12 is installed to the other end, high-low pressure division board 10 is installed in the outside of pump assembly II 12, the both ends of casing 3 pass through end cover I1 and the encapsulation of end cover II 9 form a confined cavity, high-low pressure division board 10 will divide into cavity I18 and cavity II 19 with this cavity, and it has breathing pipe 19 and blast pipe 17 to communicate respectively on two cavities, the cover is equipped with economic ware 7 on the inboard driving crankshaft 6 of pump assembly II 12 in cavity I18.
The motor stator 4 and the motor rotor 5 are arranged on the driving crankshaft 6 in the shell 3.
The pump assembly I2 directly sucks gas through the gas suction pipe 17, the compressed gas is discharged into the chamber I18 in the compressor, an intermediate pressure chamber is formed in the compressor, and the chamber I18 can be used for supplementing gas or spraying liquid.
The economizer 7 comprises a pipe I16 and a pipe II 15, the pipe I16 is positioned in the pipe II 15, two ends of the pipe I16 are respectively connected with a joint I8 and a joint II 13 on the shell 3, the inside of the pipe I16 is provided with a main loop refrigerant of a refrigerating system, a sandwich channel 20 formed by the pipe II 15 and the pipe I16 is provided with a once-shut-off refrigerant, an inlet 21 of the sandwich channel 20 is connected with a joint III 14 on the shell 3, and an outlet 22 of the sandwich channel 20 is arranged in a cavity I18 in the shell 3.
According to actual use conditions, the tube I16 can be a common tube, or can be a high-efficiency heat exchange tube such as a corrugated tube, an inner spiral tube or an outer spiral tube.
Meanwhile, the economizer 7 can also adopt a plate heat exchanger formed by stacking annular or fan-shaped metal sheets, the plate heat exchanger is provided with two channels, namely a channel I and a channel II, wherein the channel I is internally provided with a main loop refrigerant of the system, two ends of the channel I are respectively connected with a connector I8 and a connector II 13 on the shell 3, the channel II is internally provided with a refrigerant after interception, one end of the channel II is connected with a connector III 14 on the shell 3, and the other end of the channel II is opened in an inner cavity I18 of the shell 3.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a built-in economic ware formula doublestage compressor, is including casing (3), be equipped with a horizontal straight driving crankshaft (6) in casing (3), its characterized in that: the novel energy-saving engine is characterized in that one end of the driving crankshaft (6) is provided with a pump assembly I (2), the other end of the driving crankshaft is provided with a pump assembly II (12), the outer side of the pump assembly II (12) is provided with a high-low pressure isolation plate (10), two ends of the shell (3) are packaged through an end cover I (1) and an end cover II (9) to form a closed cavity, the high-low pressure isolation plate (10) divides the cavity into a cavity I (18) and a cavity II (19), the two cavities are respectively communicated with an air suction pipe (19) and an air discharge pipe (17), and an economizer (7) is sleeved on the driving crankshaft (6) on the inner side of the pump assembly II (12) in the cavity I (18);
A motor stator (4) and a motor rotor (5) are arranged on a driving crankshaft (6) in the shell (3);
The economizer (7) consists of a pipe I (16) and a pipe II (15), wherein the pipe I (16) is positioned in the pipe II (15), and two ends of the pipe I (16) are respectively connected with a joint I (8) and a joint II (13) on the shell (3);
the inside of the tube I (16) is a main loop refrigerant of the refrigerating system, a sandwich channel (20) formed by the tube II (15) and the tube I (16) is a once-shut-off refrigerant, an inlet (21) of the sandwich channel (20) is connected with a joint III (14) on the shell (3), and an outlet (22) of the sandwich channel (20) is arranged inside the shell (3).
2. The built-in economizer type dual stage compressor as set forth in claim 1, wherein: the tube I (16) is a high-efficiency heat exchange tube in the forms of a common tube, a corrugated tube, an inner spiral tube or an outer spiral tube.
3. The built-in economizer type dual stage compressor as set forth in claim 1, wherein: the economizer (7) is a plate heat exchanger formed by stacking annular or fan-shaped metal sheets.
4. The built-in economizer type dual stage compressor as recited in claim 3 wherein: the plate heat exchanger is provided with two channels, namely a channel I and a channel II, wherein the channel I is internally provided with a main loop refrigerant of the system, two ends of the channel I are respectively connected with a connector I (8) and a connector II (13) on the shell (3), the channel II is internally provided with a refrigerant after interception once, one end of the channel II is connected with a connector III (14) on the shell (3), and the other end of the channel II is opened inside the shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928502.4A CN107559195B (en) | 2017-10-09 | 2017-10-09 | Built-in economizer formula doublestage compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928502.4A CN107559195B (en) | 2017-10-09 | 2017-10-09 | Built-in economizer formula doublestage compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559195A CN107559195A (en) | 2018-01-09 |
| CN107559195B true CN107559195B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928502.4A Active CN107559195B (en) | 2017-10-09 | 2017-10-09 | Built-in economizer formula doublestage compressor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811984B (en) * | 2022-04-29 | 2023-05-23 | 珠海格力电器股份有限公司 | Compressor and compressor air conditioning system |
| CN114962260B (en) * | 2022-05-30 | 2024-04-09 | 珠海凌达压缩机有限公司 | Compressor and compressor air conditioning system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141483A (en) * | 1997-11-06 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Electric gas compressor |
| JP2006029252A (en) * | 2004-07-20 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| CN202928174U (en) * | 2012-08-14 | 2013-05-08 | 苏州必信空调有限公司 | Water cooling unit |
| CN103196313A (en) * | 2012-01-04 | 2013-07-10 | 珠海格力电器股份有限公司 | Casing pipe heat exchanger and air-conditioner utilizing same |
| CN105332888A (en) * | 2014-07-22 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
| CN105402124A (en) * | 2015-11-25 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Multistage compressor and air conditioning system |
| CN106091465A (en) * | 2016-08-18 | 2016-11-09 | 中山长虹电器有限公司 | A kind of Novel ground source heat pump |
| CN207500122U (en) * | 2017-10-09 | 2018-06-15 | 合肥圣三松冷热技术有限公司 | A kind of built-in economizer formula double-stage compressor |
-
2017
- 2017-10-09 CN CN201710928502.4A patent/CN107559195B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141483A (en) * | 1997-11-06 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Electric gas compressor |
| JP2006029252A (en) * | 2004-07-20 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| CN103196313A (en) * | 2012-01-04 | 2013-07-10 | 珠海格力电器股份有限公司 | Casing pipe heat exchanger and air-conditioner utilizing same |
| CN202928174U (en) * | 2012-08-14 | 2013-05-08 | 苏州必信空调有限公司 | Water cooling unit |
| CN105332888A (en) * | 2014-07-22 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
| CN105402124A (en) * | 2015-11-25 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Multistage compressor and air conditioning system |
| CN106091465A (en) * | 2016-08-18 | 2016-11-09 | 中山长虹电器有限公司 | A kind of Novel ground source heat pump |
| CN207500122U (en) * | 2017-10-09 | 2018-06-15 | 合肥圣三松冷热技术有限公司 | A kind of built-in economizer formula double-stage compressor |
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| CN107559195A (en) | 2018-01-09 |
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