CN209278127U - Compressor - Google Patents
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- CN209278127U CN209278127U CN201822091382.XU CN201822091382U CN209278127U CN 209278127 U CN209278127 U CN 209278127U CN 201822091382 U CN201822091382 U CN 201822091382U CN 209278127 U CN209278127 U CN 209278127U
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Abstract
The utility model provides a kind of compressor.The compressor includes low pressure (LP) cylinder (1), intermediate cavity (2), high pressure chest (3) and high pressure cylinder (4), the discharge capacity of high pressure cylinder (4) is V1, the volume of intermediate cavity (2) is V2, and wherein the relationship between V1 and V2 meets 10 >=V2/V1 >=3.Compressor according to the present utility model can reduce intermediate cavity pressure fluctuation, reduces level-one overcompression loss, reduces two-stage compression power consumption, improve the performance of compressor.
Description
Technical field
The utility model belongs to technical field of air compression, and in particular to a kind of compressor.
Background technique
Current Dual-level enthalpy adding compressor generally comprises a low pressure lower cylinder and a high pressure upper cylinder, low pressure lower cylinder
Consistent with vent position with high pressure upper cylinder air-breathing, eccentric and lower eccentric in 180 ° of phase differences on crankshaft, intermediate cavity setting exists
Lower flange, lower cylinder form medium pressure gas after completing one stage of compression, and it is sufficiently mixed that tonifying Qi gas is introduced into lower flange and medium pressure gas
It closes, simultaneously two-stage compression forms high pressure gas for gas sucking after upper cylinder will mix.Compressor can also be using lower cylinder as high pressure
Cylinder, upper cylinder are set as low pressure (LP) cylinder, and cavity of resorption need to be arranged in exhaust pipe on shell at this time.
Intermediate cavity is that level-one is vented the chamber mixed with tonifying Qi, since rotor-type compressor is non-uniform speed air-breathing, row
Gas, cause in intermediate cavity gas pressure fluctuation fairly obvious, hiigh pressure stage cylinder air-breathing is caused to be connected inadequate with low-pressure stage exhaust
Rationally, it has some setbacks as the raising of intermediate cavity inner refrigerant pressure often leads to low-pressure stage cylinder exhaust, overcompression loss is big；As in
Between chamber refrigerant pressure reduction cause hiigh pressure stage cylinder pressure of inspiration(Pi) low, two-stage compression than increase, split-compressor power increase,
Reduce the performance of refrigeration system.
Intermediate cavity is that level-one is vented the chamber mixed with tonifying Qi, since intermediate cavity is arranged in lower flange, tonifying Qi refrigerant
Upper cylinder air inlet first must be flowed to after lower flange is mixed with low-pressure first-stage exhaust, cause the length of middle pressure runner longer, stream
Road flow resistance loss is big, reduces second level pressure of inspiration(Pi), increases upper cylinder compression power consumption, reduces the performance of compressor.
It is housing high pressure cylinder outside low pressure lower cylinder, refrigerant pressure differential is larger inside and outside cylinder, and the leakage rate of refrigerant is larger,
The refrigerating capacity or heating capacity for reducing compressor, reduce the performance of refrigeration system.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of compressors, can reduce intermediate cavity pressure
Pulsation reduces level-one overcompression loss, reduces two-stage compression power consumption, improve the performance of compressor.
To solve the above-mentioned problems, the utility model provides a kind of compressor, including low pressure (LP) cylinder, intermediate cavity, high pressure chest and
High pressure cylinder, the discharge capacity of high pressure cylinder are V1, and the volume of intermediate cavity is V2, wherein the relationship between V1 and V2 meet 10 >=V2/V1 >=
3。
Preferably, 8 >=V2/V1 >=3.
Preferably, 6 >=V2/V1 >=3.
Preferably, compressor further includes shell, upper flange and lower flange, and low pressure (LP) cylinder and high pressure cylinder are arranged in upper flange under
Between flange.
Preferably, upper flange, high pressure cylinder, low pressure (LP) cylinder and lower flange are successively set in shell, between upper flange and shell
Cavity form high pressure chest, cavity between upper flange and the lubricating oil liquid level of housing bottom forms intermediate cavity.
Preferably, level-one exhaust outlet is provided on low pressure (LP) cylinder, is provided with second level air entry on high pressure cylinder, intermediate cavity respectively with
Level-one exhaust outlet is connected to second level air entry,
Preferably, tonifying Qi component, gas supplementing opening and low pressure exhaust component are provided on lower flange, the setting of low pressure exhaust component exists
Level-one exhaust ports, gas supplementing opening are connected to intermediate cavity by tonifying Qi component.
Preferably, compressor further includes enthalpy-increasing device, and enthalpy-increasing device is connected to by tonifying Qi component with intermediate cavity.
Preferably, it is provided with level-one air entry on low pressure (LP) cylinder, gas-liquid separator is provided with outside shell, gas-liquid separator goes out
Mouth is connected to level-one air entry.
Preferably, upper flange, low pressure (LP) cylinder, high pressure cylinder and lower flange are successively set in shell, between upper flange and shell
Cavity form intermediate cavity, cavity between upper flange and the lubricating oil liquid level of housing bottom forms high pressure chest.
Compressor provided by the utility model, including low pressure (LP) cylinder, intermediate cavity, high pressure chest and high pressure cylinder, the discharge capacity of high pressure cylinder
For V1, the volume of intermediate cavity is V2, and wherein the relationship between V1 and V2 meets 10 >=V2/V1 >=3.By the appearance for limiting intermediate cavity
Proportionate relationship between the long-pending and discharge capacity of high pressure cylinder, enables to the volume of intermediate cavity effectively to increase compared with the existing technology, from
And intermediate cavity pressure oscillation is reduced, and making low pressure (LP) cylinder smooth in exhaust, high pressure cylinder pressure of inspiration(Pi) is steady, level-one overcompression loss is reduced,
Two-stage compression power consumption is reduced, the performance of compressor is improved.
Detailed description of the invention
Fig. 1 is the sectional structure chart of the compressor of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the upper flange of the compressor of the utility model embodiment；
Fig. 3 is the A-A of Fig. 2 to sectional structure chart；
Fig. 4 is the structural schematic diagram of the lower flange of the compressor of the utility model embodiment；
Fig. 5 is the structural schematic diagram of the high pressure cylinder of the compressor of the utility model embodiment.
Appended drawing reference indicates are as follows:
1, low pressure (LP) cylinder；2, intermediate cavity；3, high pressure chest；4, high pressure cylinder；5, level-one exhaust outlet；6, level-one air entry；7, second level
Air entry；8, shell；9, upper flange；10, lower flange；11, tonifying Qi component；12, low pressure exhaust component；13, enthalpy-increasing device；14,
Gas-liquid separator；15, intermediate bulkhead；16, high pressure gas component；17, gas supplementing opening.
Specific embodiment
In conjunction with referring to figs. 1 to 5, embodiment according to the present utility model, compressor includes low pressure (LP) cylinder 1, intermediate cavity
2, high pressure chest 3 and high pressure cylinder 4, the discharge capacity of high pressure cylinder 4 are V1, and the volume of intermediate cavity 2 is V2, and wherein the relationship between V1 and V2 is full
Foot 10 >=V2/V1 >=3.
By limiting the proportionate relationship between the volume of intermediate cavity 2 and the discharge capacity of high pressure cylinder 4, intermediate cavity 2 is enabled to
Volume effectively increases compared with the existing technology, and the volume of intermediate cavity 2 can associate with the discharge capacity of high pressure cylinder 4, the two
PRESSURE-VOLUME RELATION design it is more reasonable so that the pressure of intermediate cavity 2 will not be too low, thus in avoiding in compressor operation
Between chamber refrigerant pressure reduction cause high pressure cylinder pressure of inspiration(Pi) low, two-stage compression than increase, split-compressor power increase asks
Topic reduces intermediate cavity pressure oscillation, makes low pressure (LP) cylinder smooth in exhaust, and high pressure cylinder pressure of inspiration(Pi) is steady, reduces level-one overcompression loss,
Two-stage compression power consumption is reduced, the performance of compressor is improved.
Preferably, 8 >=V2/V1 >=3.It is highly preferred that 6 >=V2/V1 >=3.By the volume and high pressure cylinder that set intermediate cavity 2
Maximum ratio and minimum scale between 4 discharge capacity can be avoided the refrigerant pressure mistake that intermediate cavity 2 is delivered in high pressure cylinder 4
It is small and cause two-stage compression than excessively high problem, it is excessive also to can be avoided the refrigerant pressure that intermediate cavity 2 is delivered in high pressure cylinder 4
Caused by, influence the service life of compressor the problem of excessive to the impact of the workpiece of compressor.
Compressor further includes shell 8, upper flange 9 and lower flange 10, and low pressure (LP) cylinder 1 and high pressure cylinder 4 are arranged in upper flange 9 under
Between flange 10.Preferably, intermediate bulkhead 15 is additionally provided between upper flange 9 and lower flange 10.
In the present embodiment, upper flange 9, high pressure cylinder 4, low pressure (LP) cylinder 1 and lower flange 10 are successively set in shell 8, upper method
Cavity between orchid 9 and shell 8 forms high pressure chest 3, and the cavity between the lubricating oil liquid level of 8 bottom of upper flange 9 and shell is formed
Intermediate cavity 2.In the present embodiment, intermediate cavity 2 includes the cavity between lower flange 10 and pasta, the refrigerant passage on low pressure (LP) cylinder 1
And it is formed by cavity between intermediate bulkhead 15 and shell 8, belong to due to being formed by cavity between lower flange 10 and pasta
In intermediate cavity 2, there is no need to which lower flange cover board is arranged, intermediate cavity 2 is by being formed by cavity between intermediate bulkhead 15 and shell 8
It is directly connected to the second level air entry 7 of high pressure cylinder 4, therefore presses the length of runner in capable of shortening, pressure runner flow resistance damage in reduction
The loss of suction of mistake and high pressure cylinder 4, keeps 4 air-breathing of high pressure cylinder more smooth, reduces the work done during compression of high pressure cylinder 4, improve compressor
Performance.Further, since the outside of low pressure (LP) cylinder 1 is surrounded by intermediate cavity 2, and the pressure in intermediate cavity 2 is medium pressure gas, therefore low pressure
The cylinder body inside and outside differential pressure of cylinder 1 reduces, and the leakage rate of refrigerant reduces, and the refrigerating capacity or heating capacity of compressor is improved, to mention
The performance of high refrigeration system.10 structure of lower flange of the present embodiment is simpler, and manufacture is easy, and eliminates lower flange cover board, reduces
The manufacturing cost of compressor.
Preferably, it is provided with level-one exhaust outlet 5 on low pressure (LP) cylinder 1, second level air entry 7, intermediate cavity 2 are provided on high pressure cylinder 4
It is connected to respectively with level-one exhaust outlet 5 and second level air entry 7, level-one overcompression loss can be further reduced, reduce two-stage compression
Power consumption improves the performance of compressor.
Preferably, tonifying Qi component 11, gas supplementing opening 17 and low pressure exhaust component 12, low pressure exhaust group are provided on lower flange 10
Part 12 is arranged at level-one exhaust outlet 5, and gas supplementing opening 17 is connected to intermediate cavity 2 by tonifying Qi component 11.Tonifying Qi component 11 includes mending
Air valve, low pressure exhaust component 12 include exhaust valve.
Second level air entry 7, screw hole and high pressure gas component 16 are provided on upper flange 9, high pressure gas component 16 is arranged
Without other streams other than second level air entry 7, screw hole and high-pressure exhaust on the high-pressure exhaust of upper flange 9, upper flange 9
Through-hole reduces the processing cost and difficulty of processing of upper flange to simplify the processing technology of upper flange.
Compressor further includes enthalpy-increasing device 13, and enthalpy-increasing device 13 is connected to by tonifying Qi component 11 with intermediate cavity 2.Preferably,
Mounting bracket is fixedly installed on the outside of shell 8, enthalpy-increasing device 13 is fixed on shell 8 by mounting bracket, Neng Gouyou
The stability and reliability of mounting structure of the effect enhancing enthalpy-increasing device 13 on shell 8.
It is provided with level-one air entry 6 on low pressure (LP) cylinder 1, gas-liquid separator 14 is provided with outside shell 8, gas-liquid separator 14 goes out
Mouth is connected to level-one air entry 6.
In another unshowned embodiment, upper flange 9, low pressure (LP) cylinder 1, high pressure cylinder 4 and lower flange 10 are set gradually
In shell 8, the cavity between upper flange 9 and shell 8 forms intermediate cavity 2, the cavity between upper flange 9 and the pasta of shell 8
Form high pressure chest 3.
In the present embodiment, the location swap of low pressure (LP) cylinder 1 and high pressure cylinder 4, high pressure cylinder 4 are located at lower part, and low pressure (LP) cylinder 1 is located at upper
Portion, therefore low pressure (LP) cylinder 1 and the spatial position on 9 top of upper flange are closer, the spatial position of high pressure cylinder 4 and 10 lower part of lower flange is more
Closely, intermediate cavity 2 can be set by the cavity between upper flange 9 and shell 8 according to this configuration, by upper flange 9 and 8 bottom of shell
Lubricating oil liquid level between cavity be set as high pressure chest 3 so that the setting of high pressure chest 3 and intermediate cavity 2 is more reasonable, energy
The length of middle pressure runner is enough shortened, the loss of suction of runner flow resistance loss and high pressure cylinder is pressed in reduction, makes 4 air-breathing of high pressure cylinder more
It is smooth, the work done during compression of high pressure cylinder 4 is reduced, compressor performance is improved.
Preferably, exhaust pipe is additionally provided on shell 8, exhaust pipe is connected to high pressure chest 3.Specifically, working as high pressure chest 3
When shell epicoele, exhaust pipe is arranged in the upper housing, and is connected to high pressure chest 3, when high pressure chest 3 is located at shell cavity of resorption, row
Tracheae is arranged in the lower part of the housing, and is connected to high pressure chest 3.
In compressor operating, compressor enters in low pressure (LP) cylinder 1 from the outlet of gas-liquid separator 14 through level-one air entry 6,
Then complete compression in low pressure (LP) cylinder 1, form level-one exhaust, rear stage be vented and from level-one exhaust outlet 5 enter intermediate cavity 2
It is interior, and mixed with the tonifying Qi entered in intermediate cavity 2 out of enthalpy-increasing device 13 through gas supplementing opening 17, state of calming the anger in formation is cold
Matchmaker, middle pressure gaseous coolant enter intermediate bulkhead 15 and 8 institute of shell from the refrigerant passage on cylinder body of the intermediate cavity 2 through low pressure (LP) cylinder 1
Then the cavity of formation sucks in high pressure cylinder 4 from the cavity through second level air entry 7, compression forms second level again in high pressure cylinder 4
Exhaust, then drains into high pressure chest 3, compressor is discharged through exhaust pipe from high pressure chest 3.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with modification.
Claims (10)
1. a kind of compressor, which is characterized in that described including low pressure (LP) cylinder (1), intermediate cavity (2), high pressure chest (3) and high pressure cylinder (4)
The discharge capacity of high pressure cylinder (4) is V1, and the volume of the intermediate cavity (2) is V2, and wherein the relationship between V1 and V2 meets 10 >=V2/V1
≥3。
2. compressor according to claim 1, which is characterized in that 8 >=V2/V1 >=3.
3. compressor according to claim 2, which is characterized in that 6 >=V2/V1 >=3.
4. compressor according to any one of claim 1 to 3, which is characterized in that the compressor further includes shell
(8), upper flange (9) and lower flange (10), the low pressure (LP) cylinder (1) and the high pressure cylinder (4) are arranged in the upper flange (9) and institute
It states between lower flange (10).
5. compressor according to claim 4, which is characterized in that the upper flange (9), the high pressure cylinder (4), described low
Cylinder pressure (1) and the lower flange (10) are successively set in the shell (8), between the upper flange (9) and the shell (8)
Cavity formed the high pressure chest (3), the cavity between the upper flange (9) and the lubricating oil liquid level of the shell (8) bottom
Form the intermediate cavity (2).
6. compressor according to claim 4, which is characterized in that be provided with level-one exhaust outlet on the low pressure (LP) cylinder (1)
(5), be provided with second level air entry (7) on the high pressure cylinder (4), the intermediate cavity (2) respectively with the level-one exhaust outlet (5) and
Second level air entry (7) connection.
7. compressor according to claim 6, which is characterized in that be provided with tonifying Qi component on the lower flange (10)
(11), gas supplementing opening (17) and low pressure exhaust component (12), the low pressure exhaust component (12) are arranged in the level-one exhaust outlet (5)
Place, the gas supplementing opening (17) are connected to the intermediate cavity (2) by the tonifying Qi component (11).
8. compressor according to claim 7, which is characterized in that the compressor further includes enthalpy-increasing device (13), described
Enthalpy-increasing device (13) is connected to by the tonifying Qi component (11) with the intermediate cavity (2).
9. compressor according to claim 4, which is characterized in that be provided with level-one air entry on the low pressure (LP) cylinder (1)
(6), it is provided with gas-liquid separator (14) outside the shell (8), the outlet of the gas-liquid separator (14) to the level-one
Air entry (6).
10. compressor according to claim 4, which is characterized in that the upper flange (9), the low pressure (LP) cylinder (1), described
High pressure cylinder (4) and the lower flange (10) are successively set in the shell (8), the upper flange (9) and the shell (8) it
Between cavity formed the intermediate cavity (2), the chamber between the upper flange (9) and the lubricating oil liquid level of the shell (8) bottom
Body forms the high pressure chest (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822091382.XU CN209278127U (en) | 2018-12-12 | 2018-12-12 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822091382.XU CN209278127U (en) | 2018-12-12 | 2018-12-12 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278127U true CN209278127U (en) | 2019-08-20 |
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ID=67611124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822091382.XU Active CN209278127U (en) | 2018-12-12 | 2018-12-12 | Compressor |
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| Country | Link |
|---|---|
| CN (1) | CN209278127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488595A (en) * | 2018-12-12 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
-
2018
- 2018-12-12 CN CN201822091382.XU patent/CN209278127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488595A (en) * | 2018-12-12 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
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