CN112963331A

CN112963331A - Air supplementing structure and compressor with same

Info

Publication number: CN112963331A
Application number: CN202110212813.7A
Authority: CN
Inventors: 程剑国; 王勇; 丁学超; 李旺宏; 朱伟; 侯平
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-06-15
Anticipated expiration: 2041-02-25
Also published as: CN112963331B

Abstract

The invention provides a gas supplementing structure and a compressor with the same. The air supply structure comprises a body, wherein a plurality of air supply channels are formed in the body; the air supply device comprises a plurality of air supply channels, a plurality of check valves and a plurality of air supply channels, wherein the check valves are arranged in a one-to-one correspondence manner; wherein the cracking pressure of at least one check valve among the plurality of check valves is set differently from the cracking pressures of the remaining check valves. Through at this internal a plurality of tonifying qi passageways that set up, and set up the check valve in each tonifying qi passageway, and set the cracking pressure of check valve to different modes, the valve block that makes the air current that lets in the tonifying qi passageway can open the check valve that cracking pressure is less than airflow pressure sets up like this, realize this way effect of saying to ventilate then, set up like this and make the tonifying qi structure can be according to user's in-service use environment, adjust different tonifying qi routes, reach high-efficient output, use cost is reduced, improve the effect of product competition.

Description

Air supplementing structure and compressor with same

Technical Field

The invention relates to the technical field of compressor equipment, in particular to a gas supplementing structure and a compressor with the same.

Background

Along with the improvement of the level of people, the requirement on the product quality is higher and higher, the requirement on the product application range is higher and higher, the air supply structure is a main means for commonly increasing the product application range, a double-cylinder or multi-cylinder structure is commonly used for supplying air in the conventional air supply structure, the cost is high, and the air supply path is single and cannot meet various environmental requirements.

Disclosure of Invention

The invention mainly aims to provide an air supplementing structure and a compressor with the same, so as to solve the problem of high cost of the compressor in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a gas supplement structure including: the air supply device comprises a body, wherein a plurality of air supply channels are formed in the body; the air supply device comprises a plurality of air supply channels, a plurality of check valves and a plurality of air supply channels, wherein the check valves are arranged in a one-to-one correspondence manner; wherein, the cracking pressure of at least one check valve in the plurality of check valves is different from the cracking pressure of the other check valves.

Furthermore, the inlet ends of the air supply channels are gathered together and are communicated with each other to form an inlet section of the air supply channel, and the outlet ends of the air supply channels are gathered together and are communicated with each other to form an outlet section of the air supply channel.

Further, the plurality of gas replenishment passages includes: the first end of the first air supply branch is communicated with the inlet section, and the second end of the first air supply branch is communicated with the outlet section; and the first end of the second air supply branch is communicated with the inlet section, the second end of the second air supply branch is communicated with the outlet section, and at least one of the first air supply branch and the second air supply branch is of an arc-shaped structure.

Further, the plurality of check valves includes: the first one-way valve is arranged in the first air supplementing branch; and the second one-way valve is arranged in the second air supplementing branch, and the opening pressure of the first one-way valve is smaller than that of the second one-way valve.

Further, when the value of the pressure of the airflow introduced through the inlet section is a first preset value, at least one of the check valves is in an open state, the rest of the check valves are in a closed state, and when the value of the pressure of the airflow introduced through the inlet section is a second preset value, the check valves are all in an open state.

Further, the cross-sectional area of the inlet section is S1, the cross-sectional area of the first gas supplementing branch is S2, and S1 > S2.

Further, the area of the cross section of the second air supplement branch is S3, the area of the cross section of the main part of the outlet section is S4, and the area of the cross section of the outlet section is S5, wherein S3 is more than S4 and is more than or equal to S5.

Further, the length of the first air supplement branch is L1, the length of the second air supplement branch is L2, and the length of the inlet section is L, wherein L/L1 belongs to [0.5, 0.8], and L/L2 belongs to [0.5, 0.8 ].

Furthermore, the inlet ends of the air supply channels are gathered together and are communicated with each other to form an inlet section of the air supply channel, the outlet ends of the air supply channels are gathered together to form a gathering region, the side wall of the body, which is positioned in the gathering region, is provided with a discharge port communicated with the outlet ends of the air supply channels, and the area of the cross section of the discharge port is S5.

Further, the body includes first body and second body, and first body and second body set up relatively, and a plurality of tonifying qi passageways are seted up on at least one in first body and the second body.

According to another aspect of the present invention, there is provided a compressor, comprising the gas supplementing structure.

Further, the body of tonifying qi structure is at least one in flange body, baffle body, the cylinder body.

By applying the technical scheme of the invention, the plurality of air replenishing channels are arranged in the body, the one-way valves are arranged in the air replenishing channels, and the opening pressures of the one-way valves are set to be different modes, so that the valve plates of the one-way valves with the opening pressures smaller than the air flow pressure can be opened by the air flow introduced into the air replenishing channels, and then the air supply effect of the channels is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a first embodiment of a gas-replenishing structure according to the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of a gas-replenishing structure according to the present invention;

FIG. 3 is a schematic perspective view of a third embodiment of the gas-replenishing structure according to the present invention;

FIG. 4 is a schematic view of a first embodiment of a gas-replenishing channel of a gas-replenishing structure according to the present invention;

FIG. 5 is a schematic view of a second embodiment of the gas-replenishing channel of the gas-replenishing structure according to the present invention;

FIG. 6 shows a schematic view of a check valve of the gas supplementing structure according to the present invention;

fig. 7 shows a graph comparing the capacity and energy efficiency of a compressor according to the present invention with those of a compressor of the prior art.

Wherein the figures include the following reference numerals:

10. a body; 11. a first body; 12. a second body;

20. a gas supply channel; 21. an inlet section; 22. an outlet section; 23. a first air supply branch; 24. a second air supply branch;

30. a one-way valve; 31. a first check valve; 32. a second one-way valve.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 7, according to an embodiment of the present application, a gas compensation structure is provided.

Specifically, the air supplement structure includes a body 10 and a check valve 30. A plurality of air supply channels 20 are formed in the body 10. The number of the check valves 30 is plural, and the plural check valves 30 are provided in one-to-one correspondence with the plural air replenishing passages 20. Wherein the cracking pressure of at least one check valve 30 among the plurality of check valves 30 is different from the cracking pressure of the remaining check valves 30. It should be noted that, in the present application, the opening pressure of the check valve 30 refers to an airflow impact pressure when the exhaust valve sheet in the check valve 30 is in the open position when the exhaust valve sheet is impacted by an airflow, that is, the opening pressure refers to a minimum pressure value when the exhaust valve sheet is in the open position.

In this embodiment, through this internal a plurality of tonifying qi passageways that set up, and set up the check valve in each tonifying qi passageway, and set the cracking pressure of check valve to different modes, the valve block that the check valve that cracking pressure is less than airflow pressure can be opened to the air current that lets in the tonifying qi passageway to the setting like this, realize this sweetgum fruit way effect of ventilating then, the setting makes the tonifying qi structure can be according to user's in-service use environment like this, adjust different tonifying qi routes, reach high-efficient output, use cost is reduced, the effect of product competitiveness is improved.

Wherein the inlet ends of the plurality of air supply channels 20 are gathered together and arranged in communication to form an inlet section 21 of the air supply channel 20, and the outlet ends of the plurality of air supply channels 20 are gathered together and arranged in communication to form an outlet section 22 of the air supply channel 20. This arrangement allows gas to be introduced through one inlet and discharged through one outlet, which makes the arrangement simple and reliable. The gas may be a refrigerant.

Specifically, as shown in fig. 4, the plurality of gas replenishing passages 20 includes a first gas replenishing branch 23 and a second gas replenishing branch 24. A first end of the first air supply branch 23 is arranged in communication with the inlet section 21 and a second end of the first air supply branch 23 is arranged in communication with the outlet section 22. The first end of the second air supply branch 24 is communicated with the inlet section 21, the second end of the second air supply branch 24 is communicated with the outlet section 22, and at least one of the first air supply branch 23 and the second air supply branch 24 is in an arc structure. The plurality of check valves 30 includes a first check valve 31 and a second check valve 32. The first check valve 31 is disposed in the first air make-up branch 23. The second check valve 32 is disposed in the second air make-up branch 24, and the cracking pressure of the first check valve 31 is smaller than that of the second check valve 32. This arrangement can further improve the reliability of the gas replenishing structure.

Further, the cross-sectional area of the inlet section 21 is S1, the cross-sectional area of the first gas supplementing branch 23 is S2, and S1 > S2. The cross-sectional area of the second gas supplementing branch 24 is S3, the cross-sectional area of the trunk portion of the outlet section 22 is S4, and the cross-sectional area of the outlet section 22 is S5 as shown in A in FIGS. 3 and 4, wherein S3 > S4 ≧ S5. The air supply efficiency of the air supply structure can be improved.

In order to further improve the gas charging efficiency of the gas charging structure, as shown in FIG. 5, the length of the first gas charging branch 23 is L1, the length of the second gas charging branch 24 is L2, and the length of the inlet section 21 is L, wherein L/L1E [0.5, 0.8], L/L2E [0.5, 0.8 ]. Wherein L4 is the length of the outlet section 22, wherein L4 may be 0, that is, in another embodiment of the present application, the inlet ends of the plurality of gas replenishing channels 20 are collected together and arranged in communication to form the inlet section 21 of the gas replenishing channel 20, the outlet ends of the plurality of gas replenishing channels 20 are collected together to form a collection region, the side wall of the body 10 located in the collection region is provided with a discharge port communicating with the outlet ends of the plurality of gas replenishing channels 20, and the cross-sectional area of the discharge port is S5.

In order to reduce the difficulty of processing the air supply channel, the body 10 includes a first body 11 and a second body 12. The first body 11 and the second body 12 are oppositely arranged, and the plurality of air replenishing channels 20 are opened on at least one of the first body 11 and the second body 12. As shown in fig. 3B, the first body 11 is provided with a groove structure, and the second body 12 is matched with the first body 11 to form an air supply channel, so that the reliability of the air supply structure can be improved. Of course, the first body 11 and the second body 12 may be provided with grooves at the same time, so that the grooves at both sides are mutually matched to form an air supply channel, and the function of cooling medium flowing can be realized.

Wherein at least one of the check valves 30 is in an open state when a pressure value of the air flow introduced through the inlet section 21 is a first preset value, and the rest are in a closed state, and the check valves 30 are all in an open state when the pressure value of the air flow introduced through the inlet section 21 is a second preset value. The corresponding one-way valve can be opened according to the pressure of the introduced air flow by the arrangement, and the practicability of the air supplementing structure is effectively improved.

The air supply structure in the above embodiment can be used in the technical field of compressor equipment, that is, according to another aspect of the present invention, a compressor is provided, which includes the air supply structure, and the air supply structure is the air supply structure in the above embodiment. Specifically, the body 10 of the air supply structure is at least one of a flange body, a partition body and a cylinder body.

Specifically, the existing air supply structure is commonly used in a double-cylinder and multi-cylinder structure, and the single-cylinder air supply is relatively small. The common air supply structure is composed of one air supply channel, so that the air supply path is single, the air supply structure is difficult to adapt to different working condition environments, the application range of the air supply structure with only one air supply channel is small, the production cost of the compressor with multiple cylinder bodies is high, and the problem that the product competitiveness is not favorably improved is caused.

In order to solve the problems of high production cost and small application range in the prior art, the air supply structure scheme with a plurality of air supply paths is adopted, different path structure selection is realized, the capacity and energy efficiency of the compressor system are optimized, and the production cost is reduced. The principle of the check valve is shown in fig. 6, and the stress formula is as follows: F2-mg-F1 ═ ma, F2 ═ p/S, F1 ═ K ═ Δ x, where F2 is the air supplement force (i.e. the impact force of the air flow on the valve plate when the air flow is introduced), p is the pressure of the flash tank, S is the flow area of the check valve, K is the elastic coefficient of the elastic element of the check valve, Δ x is the displacement of the elastic element, F1 is the elastic force of the elastic element, mg is the gravity of the elastic element, a is the acceleration of the elastic element, when a > 0, the check valve opens, and when a < 0, the check valve closes. The air replenishing path is controlled by a one-way valve to realize a path-multiple path air replenishing scheme. Wherein, the elastic element can be the valve block of check valve, and perhaps, the elastic element can be the assembly of valve block and spring.

The condition that the check valve is opened, when the air supplementing pressure is greater than the opening pressure of the first check valve on the first air supplementing branch, the first check valve is opened, when the pressure is greater than the second check valve on the air supplementing branch, the first check valve and the second check valve are simultaneously opened (the opening pressure of the first check valve is less than the opening pressure of the second check valve), and due to the fact that the throttle areas of the first air supplementing branch and the second air supplementing branch are different, system capacity and energy efficiency are improved differently.

Through adopting the tonifying qi structure of this application, compare conventional tonifying qi structure, can promote the compressor efficiency more than 3.3%, the ability promotes more than 3%, through operating mode control flash tank tonifying qi pressure, the control check valve is opened, as shown in fig. 7, the actual measurement is under operating mode 1, and the compressor ability promotes 3%, and the efficiency promotes 3.3%, under operating mode 2, the compressor ability promotes 4.2%, and the efficiency promotes 4.6%. The working condition 1 and the working condition 2 are common working conditions of the compressor, have certain correspondence with the working conditions of the system, and can reflect different user environments.

Through this scheme structure, can expand compressor application, expand service environment, save the cost, promote product competitiveness. The gas supply distances L1 and L2 are not limited to the circular arc structure in the figure, but also can be other non-circular arc curve structures, the cross section of the gas supply channel can be irregular shapes, such as square, triangle and other structures, the gas supply structure position is not limited to the flange structure in the figure, and the gas supply structure position can also be arranged on parts such as cylinders, partition plates and the like, and can also be used for a double-cylinder compressor or a multi-cylinder compressor.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas supply structure, comprising:

the air supply device comprises a body (10), wherein a plurality of air supply channels (20) are formed in the body (10);

the number of the one-way valves (30) is multiple, and the multiple one-way valves (30) and the multiple air replenishing channels (20) are arranged in a one-to-one correspondence manner;

wherein the cracking pressure of at least one check valve (30) in the plurality of check valves (30) is different from the cracking pressure of the rest check valves (30).

2. A structure for air compensation according to claim 1, characterized in that the inlet ends of a plurality of air compensation channels (20) are arranged in one collection and in communication to form an inlet section (21) of the air compensation channel (20), and the outlet ends of a plurality of air compensation channels (20) are arranged in one collection and in communication to form an outlet section (22) of the air compensation channel (20).

3. The structure for supplementing gas according to claim 2, wherein a plurality of said gas supplementing channels (20) comprises:

a first air supply branch (23), wherein a first end of the first air supply branch (23) is communicated with the inlet section (21), and a second end of the first air supply branch (23) is communicated with the outlet section (22);

the first end of the second air supply branch (24) is communicated with the inlet section (21), the second end of the second air supply branch (24) is communicated with the outlet section (22), and at least one of the first air supply branch (23) and the second air supply branch (24) is of an arc-shaped structure.

4. The structure for supplementing air according to claim 3, wherein a plurality of said check valves (30) comprises:

the first check valve (31), the first check valve (31) is set in the first air make-up branch (23);

and the second check valve (32), the second check valve (32) is arranged in the second air supply branch (24), and the opening pressure of the first check valve (31) is smaller than that of the second check valve (32).

5. Structure for making up air according to any one of claims 2 to 4, characterized in that at least one of said check valves (30) is in an open condition when the value of the pressure of the air flow introduced through said inlet section (21) is a first preset value, the remaining ones being in a closed condition, said check valves (30) each being in an open condition when the value of the pressure of the air flow introduced through said inlet section (21) is a second preset value.

6. Gas supplementing structure according to claim 3, characterized in that the cross-section of the inlet section (21) has an area of S1 and the cross-section of the first gas supplementing branch (23) has an area of S2, S1 > S2.

7. Gas supplementing structure according to claim 3, wherein the cross-sectional area of the second gas supplementing branch (24) is S3, the cross-sectional area of the trunk portion of the outlet section (22) is S4, and the cross-sectional area of the outlet section (22) is S5, where S3 > S4 ≧ S5.

8. Gas supplementing structure according to claim 3, characterized in that the length of said first gas supplementing branch (23) is L1, the length of said second gas supplementing branch (24) is L2, and the length of said inlet section (21) is L, where L/L1 e [0.5, 0.8], L/L2 e [0.5, 0.8 ].

9. The structure for supplementing air according to claim 1, wherein the inlet ends of a plurality of the air supplementing channels (20) are gathered together and arranged in communication to form an inlet section (21) of the air supplementing channel (20), the outlet ends of a plurality of the air supplementing channels (20) are gathered together to form a gathering region, the side wall of the body (10) located in the gathering region is provided with an outlet communicated with the outlet ends of a plurality of the air supplementing channels (20), and the area of the cross section of the outlet is S5.

10. The structure for supplementing gas according to claim 1, characterized in that said body (10) comprises a first body (11) and a second body (12), said first body (11) and said second body (12) being oppositely disposed, a plurality of said gas supplementing channels (20) opening on at least one of said first body (11) and said second body (12).

11. A compressor comprising a vapor-supplementing structure, wherein the vapor-supplementing structure is as claimed in any one of claims 1 to 10.

12. Compressor according to claim 11, characterized in that said body (10) of said gas makeup structure is at least one of a flange body, a baffle body, a cylinder body.