CN204783660U - Compressor and air conditioning system who has it - Google Patents
Compressor and air conditioning system who has it Download PDFInfo
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- CN204783660U CN204783660U CN201520499455.2U CN201520499455U CN204783660U CN 204783660 U CN204783660 U CN 204783660U CN 201520499455 U CN201520499455 U CN 201520499455U CN 204783660 U CN204783660 U CN 204783660U
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Abstract
The utility model discloses a compressor and air conditioning system who has it, the compressor, include: a housing. Cylinder components, cylinder components establishes in the casing, cylinder components have the compression chamber and with at least one exhaust passage of compression chamber intercommunication, the refrigerant that the compressor adopted is difluoromethane, the exhaust passage is in minimum cross -sectional area sum on the flow direction of refrigerant is S2, the discharge volume of compressor is D, S2 and D satisfy the relational expression: Z=D rho dS2, wherein, 1.15gcm2 <= z <= 2.85gcm2, rho d=0.079gcm3. According to the utility model discloses a compressor performance improves and work efficiency promotes.
Description
Technical field
The utility model relates to air-conditioning technical field, more specifically, relates to a kind of compressor and has its air-conditioning system.
Background technique
R22 refrigeration agent is classified as by " Montreal is discussed and decided " book the refrigeration agent that time limit progressively eliminates.Europe, Japan start to turn to R410A refrigerant replacement already, and the U.S. also starts to forbid the use of R22 in new refrigeration product.China also accelerates the paces that R22 eliminates, and within 2015, will reach the requirement of 10% of reduction baseline values.And more domestic major brand also start to release the environment-friendly air conditioner of R410A as refrigeration agent.But the GWP value of R410A is also larger than R22, R410A has been classified as the greenhouse gases of controlled discharge by " Kyoto Protocol ", and all R410A are never long-range replacement schemes.
The R32 of one of refrigeration agent, i.e. difluoromethane as an alternative, for industry is paid close attention to.Its GWP is 675, is only about 1/3rd of R410A (GWP2100).Its safety class is A2L, flammable well below carbon-hydrogen refrigerant R290.Therefore, the product of application R32 refrigeration agent, in marketing and in the acceptance level of market, is better than R290 refrigerant product.But when the refrigeration agent used in air-conditioning changes, the structure of air-conditioning also should adjust.
Model utility content
The application makes the discovery of the following fact and problem and understanding based on inventor:
Inventor tests using the air-conditioning system of R32 refrigeration agent, find under air-conditioning ASHRAE test condition, no matter compressor is in suction condition or exhaust condition, adopt R32 refrigeration agent more much lower than the mass flow rate of R410A refrigeration agent, be about 65% ~ 75% of R410A refrigeration agent, specifically as shown in table 1:
Table 1
As for latent heat of vaporization aspect, at 40 DEG C and 10 DEG C, R32 refrigeration agent then exceeds about 20% than R410A refrigeration agent, specifically as shown in table 2.Because the latent heat of vaporization is higher, unit mass refrigerant suction or liberated heat more, therefore, although the R32 refrigeration agent shown in table 1 is more much lower than the mass flow rate of R410A refrigeration agent.But, under air-conditioning ASHRAE test condition, when compressor adopts identical discharge volume, adopt R32 refrigeration agent still can exceed about 5% ~ 7% than the refrigerating capacity of R410A refrigeration agent, specifically as shown in table 3.
Table 2
Table 3
Therefore, obtain identical refrigerating capacity, the discharge volume of the compressor with rolling rotor of employing R32 refrigeration agent can than smaller during employing R410A refrigeration agent.
Meanwhile, inventor finds according to experimental study, and actual air-conditioning system, when mating, obtain suitable refrigerating capacity, adopts the filling quantity (quality) only needing 70% ~ 85% of R410A refrigeration agent in the past during R32 refrigeration agent.
In view of this, the model utility people of the application is specially for adopting the air-conditioning system of R32 refrigeration agent to be studied, wherein improve the structure of compressor especially, make the compressor after improvement and air-conditioning system thereof can mate R32 refrigeration agent, usability is better.
Specifically, model utility people finds, when the cross-section area of exhaust passage is too small, then exhaust resistance increases, and the power consumption of compressor will rise; When the cross-section area of exhaust passage is excessive, then the volume of the pressurized gas in exhaust passage just increases, and this part volume will reflation, makes the air displacement of compressor reduce on the contrary, refrigerating capacity deterioration.
Therefore, the model utility people of the application is to the special design of carrying out of exhaust passage of compressor adopting R32, and the exhaust efficiency of the compressor of employing R32 is improved greatly, the working efficiency of compressor promotes.
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of compressor, described compressor air-discharging performance is good, and operational efficiency is high.
The utility model also proposed a kind of air-conditioning system with above-mentioned compressor.
According to compressor of the present utility model, comprising: housing; Cylinder assembly, described cylinder assembly is located in described housing, at least one exhaust passage that described cylinder assembly has compression chamber and is communicated with described compression chamber, the refrigeration agent that described compressor adopts is difluoromethane, the smallest cross-section area sum of described exhaust passage on the flow direction of described refrigeration agent is S2, and the discharge volume of described compressor is D, and described S2 and D meets relation: z=D × ρ d/S2, wherein, 1.15g/cm
2≤ z≤2.85g/cm
2, ρ d=0.079g/cm
3.
Improve according to compressor air-discharging performance of the present utility model and working efficiency lifting.
In addition, following additional technical characteristics can also be had according to compressor of the present utility model:
Alternatively, described exhaust passage is the smallest cross-section area difference of at least two in multiple and multiple described exhaust passage.
Alternatively, described exhaust passage is that the smallest cross-section area of multiple and multiple described exhaust passage is all identical.
Alternatively, the cross-section area of each described exhaust passage remains unchanged on the flow direction of refrigeration agent.
Alternatively, the cross section of each described exhaust passage is formed as circular respectively.
According to an embodiment of the present utility model, described cylinder assembly comprises a cylinder, and described exhaust passage is located on described cylinder.
According to another embodiment of the present utility model, described cylinder block comprises cylinder and bearing, and described bearing is located at upper end and/or the lower end of described cylinder, being located at least partially on described bearing of described exhaust passage.
According to another embodiment of the present utility model, described cylinder assembly comprises two cylinders, is provided with central diaphragm between two described cylinders, being located at least partially on described central diaphragm of described exhaust passage.
According to the air-conditioning system of the utility model embodiment, comprise very according to the compressor of the utility model embodiment.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the compressor according to the utility model embodiment;
Fig. 2 is the part-structure schematic diagram of the cylinder assembly of compressor according to the utility model embodiment.
Reference character:
Compressor 100;
Housing 10;
Cylinder assembly 20; Compression chamber 21; Exhaust passage 23; Cylinder 201; Bearing 202.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The compressor 100 according to the utility model embodiment is described in detail below in conjunction with accompanying drawing.
Shown in seeing figures.1.and.2, housing 10 and cylinder assembly 20 can be comprised according to the compressor 100 of the utility model embodiment.Cylinder assembly 20 can be located in housing 10.Cylinder assembly 20 has compression chamber 21 and at least one exhaust passage 23, and each exhaust passage 23 is communicated with compression chamber 21 respectively, and the refrigeration agent in compression chamber 21 can discharge cylinder assembly 20 by exhaust passage 23.Wherein, the refrigeration agent that compressor 100 adopts is difluoromethane, i.e. R32.
The model utility people of the application finds through research, and under identical refrigerating capacity, when adopting the refrigeration agent of R32, the flow-rate ratio refrigeration agent in the past of refrigeration agent is much smaller, and follows the discharge volume of compressor 100 relevant between the flow of refrigeration agent.Therefore, refrigeration agent flows out between the cross-section area of the exhaust passage 23 of compression chamber 21 processes and the discharge volume of compressor 100 and also should meet certain relation.
Because the cross-section area of exhaust passage 23 is along the flow direction of refrigeration agent being change, now, the flow of refrigeration agent then depends primarily on the minimum position of the cross-section area of exhaust passage 23.Simultaneously because exhaust passage 23 is not limited only to one, can have multiple.Therefore, certain relation should be met between the smallest cross-section area sum of exhaust passage 23 and the discharge volume of compressor 100.
For convenience of describing, assuming that the discharge volume of compressor 100 is D.Assuming that the smallest cross-section area sum of exhaust passage 23 on the flow direction of refrigeration agent is S2.That is, when exhaust passage 23 is one, on the flow direction of the refrigeration agent in this exhaust passage 23, the smallest cross-section area of this exhaust passage 23 is S2; When exhaust passage 23 is multiple, the smallest cross-section area sum of all exhaust passages 23 on the flow direction of each self-corresponding refrigeration agent is S2, in other words, S2 be after multiple smallest cross-section area is added and, the plurality of smallest cross-section area is respectively the smallest cross-section area of multiple exhaust passage 23 on the flow direction of separately inner refrigeration agent.
Wherein, the flow direction of refrigeration agent is the bearing of trend of exhaust passage 23 usually, and the flow direction of the refrigeration agent namely corresponding to each exhaust passage 23 is respective bearing of trend.In addition, for convenience of describing, the smallest cross-section area of exhaust passage 23 described below all refers to the smallest cross-section area on the flow direction of exhaust passage 23 refrigeration agent therein.
Model utility people draw through research, and S2 and D meets relation: z=D × ρ d/S2.Wherein, z is extraction flow coefficient, 1.15g/cm
2≤ z≤2.85g/cm
2.ρ d is under the pressure (absolute pressure) of 3.5MPa, at the temperature of 90 DEG C, the density of R32 cryogen gaseous, ρ d=0.079g/cm
3.
Here, the discharge volume D of compressor 100 concrete condition of basis can carry out value, such as, in embodiments more of the present utility model, and 3.0cm
3≤ D≤95cm
3.When the value of D and z is determined, namely the smallest cross-section area sum S2 of exhaust passage 23 can determine.The exhaust efficiency meeting the compressor 100 of this relation is better, the efficiengy-increasing of compressor 100.
According to the compressor 100 of the utility model embodiment, certain relation is met by making the smallest cross-section area sum of exhaust passage 23, make the moderate dimensions of exhaust passage 23, can not be excessive, also can not be too small, make to adopt the exhaust resistance of the compressor 100 of R32 little, exhaust is very fast, and exhaust efficiency improves, compressor 100 low in energy consumption, operational efficiency improves, and compressor 100 uses safety and reliability.
According to embodiments more of the present utility model, exhaust passage 23 can be multiple, and the refrigeration agent in compression chamber 21 can discharge cylinder assembly 20 by multiple exhaust passage 23.The exhaust efficiency of compressor 100 can be improved thus.Alternatively, the smallest cross-section area of at least two in multiple exhaust passage 23 is different.That is, when exhaust passage 23 has multiple, the smallest cross-section area of all exhaust passages 23 can be all not identical, wherein the smallest cross-section area of portion discharge passage 23 also can be had to be identical.
Certainly, the utility model is not limited thereto, and such as, the smallest cross-section area of multiple exhaust passage 23 is all identical, and the smallest cross-section area of namely all exhaust passages 23 can be all identical.Thus, more even when compression chamber 21 is outwards vented, exhaust effect is better.
According to a concrete example of the present utility model, the cross-section area of each exhaust passage 23 is constant on the flow direction of refrigeration agent.That is, all exhaust passages 23 remain unchanged on the flow direction of each self-corresponding refrigeration agent.Thus, refrigeration agent flows more steady in exhaust passage 23, and not easily turbulent flow occurs, the exhaust performance of compressor 100 is better.
Preferably, the cross section of each exhaust passage 23 is formed as circular respectively.Thus, the internal face of exhaust passage 23 is comparatively round and smooth, and refrigeration agent flow resistance in exhaust passage 23 is less, and compressor 100 is vented more smooth and easy, and exhaust noise is less.
According to embodiments more of the present utility model, cylinder assembly 20 can comprise a cylinder 201, and exhaust passage 23 can be located on cylinder 201.Certainly, the structure of cylinder assembly 20 is not limited only to this, and cylinder assembly 20 can comprise cylinder 201 and bearing 202, and bearing 202 can be located at upper end and/or the lower end of cylinder 201.Such as, when bearing 202 is one, this bearing 202 can for being located at the upper bearing (metal) of cylinder 201 upper end, also can for being located at the lower bearing of cylinder 201 lower end; When bearing 202 is two, two bearings 202 can be respectively upper bearing (metal) and lower bearing.
Wherein, exhaust passage 23 can be located on bearing 202 at least partially.It comprises the two-layer meaning: for multiple exhaust passage 23, has at least an exhaust passage 23 to be located on bearing 202; For an exhaust passage 23, this exhaust passage 23 can be located on bearing 202 completely, also can partly be located on bearing 202.
For an exhaust passage 23, when exhaust passage 23 is located on bearing 202 completely, the opening of exhaust passage 23 is directly communicated with compression chamber 21; When exhaust passage 23 part is located on bearing 202, another part of exhaust passage 23 still can be located on cylinder 201.Wherein, compression chamber 21 can directly directly be communicated with the exhaust passage 23 be positioned on bearing 202, and also directly can be communicated with the exhaust passage 23 be positioned on cylinder 201, this can be arranged as the case may be.
As depicted in figs. 1 and 2, cylinder assembly 20 comprises the top and bottom that a cylinder 201 and two bearings, 202, two bearings 202 are located at cylinder 201 respectively, and bearing 202 is provided with exhaust passage 23.
Alternatively, in unshowned embodiments more of the present utility model, cylinder assembly 20 can comprise two cylinders 201.That is, can be duplex cylinder compressor 100 according to the compressor 100 of the utility model embodiment.Be provided with central diaphragm between two cylinders 201, exhaust passage 23 can be located on central diaphragm at least partially.Here also comprise the two-layer meaning: for multiple exhaust passage 23, have at least an exhaust passage 23 to be located on central diaphragm; For an exhaust passage 23, this exhaust passage 23 can be located on central diaphragm completely, also can partly be located on central diaphragm.
For an exhaust passage 23, when exhaust passage 23 is located on central diaphragm completely, the compression chamber 21 of two cylinders 201 directly can be communicated with the opening of exhaust passage 23 respectively.When exhaust passage 23 part is located on central diaphragm, another part of exhaust passage 23 can be located on cylinder 201, and when cylinder assembly 20 also has bearing 202, another part of exhaust passage 23 also can be located on bearing 202.Wherein, compression chamber 21 can directly directly be communicated with the exhaust passage 23 be positioned on central diaphragm, and also directly can be communicated with the exhaust passage 23 be positioned on cylinder 201 or bearing 202, this can be arranged as the case may be.
Condenser, vaporizer and according to parts such as the compressors 100 of the utility model embodiment can be comprised according to the air-conditioning system of the utility model embodiment.This compressor 100 can be compressor with rolling rotor 100 as shown in Figure 1.Owing to having above-mentioned useful technique effect according to the compressor 100 of the utility model embodiment, therefore good according to the air-conditioning system exhaust performance of the utility model embodiment, the operational efficiency of refrigeration system is high, and Security improves.
To form according to other of the refrigeration system of the utility model embodiment and the linkage structure of operation and compressor 100 and miscellaneous part and annexation are known for the person of ordinary skill of the art, be not described in detail at this.
In description of the present utility model, it will be appreciated that, term " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.
In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (9)
1. a compressor, is characterized in that, comprising:
Housing;
Cylinder assembly, described cylinder assembly is located in described housing, at least one exhaust passage that described cylinder assembly has compression chamber and is communicated with described compression chamber, the refrigeration agent that described compressor adopts is difluoromethane, the smallest cross-section area sum of described exhaust passage on the flow direction of described refrigeration agent is S2, and the discharge volume of described compressor is D, and described S2 and D meets relation: z=D × ρ d/S2, wherein, 1.15g/cm
2≤ z≤2.85g/cm
2, ρ d=0.079g/cm
3.
2. compressor according to claim 1, is characterized in that, described exhaust passage is that the smallest cross-section area of at least two in multiple and multiple described exhaust passage is different.
3. compressor according to claim 1, is characterized in that, described exhaust passage is that the smallest cross-section area of multiple and multiple described exhaust passage is all identical.
4. compressor according to claim 1, is characterized in that, the cross-section area of each described exhaust passage remains unchanged on the flow direction of refrigeration agent.
5. compressor according to claim 4, is characterized in that, the cross section of each described exhaust passage is formed as circular respectively.
6. the compressor according to any one of claim 1-5, is characterized in that, described cylinder assembly comprises a cylinder, and described exhaust passage is located on described cylinder.
7. the compressor according to any one of claim 1-5, is characterized in that, described cylinder block comprises cylinder and bearing, and described bearing is located at upper end and/or the lower end of described cylinder, being located at least partially on described bearing of described exhaust passage.
8. the compressor according to any one of claim 1-5, is characterized in that, described cylinder assembly comprises two cylinders, is provided with central diaphragm between two described cylinders, being located at least partially on described central diaphragm of described exhaust passage.
9. an air-conditioning system, is characterized in that, comprises the compressor according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499455.2U CN204783660U (en) | 2015-07-09 | 2015-07-09 | Compressor and air conditioning system who has it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499455.2U CN204783660U (en) | 2015-07-09 | 2015-07-09 | Compressor and air conditioning system who has it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783660U true CN204783660U (en) | 2015-11-18 |
Family
ID=54523719
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520499455.2U Expired - Fee Related CN204783660U (en) | 2015-07-09 | 2015-07-09 | Compressor and air conditioning system who has it |
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| Country | Link |
|---|---|
| CN (1) | CN204783660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041649A (en) * | 2015-07-09 | 2015-11-11 | 广东美芝制冷设备有限公司 | Compressor and air conditioning system with same |
-
2015
- 2015-07-09 CN CN201520499455.2U patent/CN204783660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041649A (en) * | 2015-07-09 | 2015-11-11 | 广东美芝制冷设备有限公司 | Compressor and air conditioning system with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151118 Termination date: 20190709 |