Partition plate and compressor
By forming a cylindrical structure in the hole of the compressor partition plate, the problems of exhaust valve plate adhesion and airflow interference are solved, achieving low-cost and efficient gas backflow prevention, and improving compressor performance and production efficiency.
Patent Information
- Application Number
- CN202520557706.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing compressors, the exhaust valve plate is prone to sticking and being interfered with by airflow when the compressor is off, which makes it impossible to close in time. In addition, the existing flow guide solution increases manufacturing costs and assembly complexity.
Design a separator plate with a cylindrical structure formed by the edge of the central hole. This simply guides the return airflow downwards to push the exhaust valve plate closed, avoiding the need for additional flow guides. The cylindrical structure is formed by simply flanging the central hole of the separator plate, reducing costs and simplifying assembly.
It effectively prevents gas backflow, improves compressor performance and service life, reduces production costs and management difficulty, and simplifies the assembly process.
Smart Images
Figure CN223724795U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a partition plate and a compressor with the partition plate. BACKGROUND
[0002] In the field of compressors, preventing backflow of exhaust gas is a key link to ensure the performance and service life of the compressor. At present, the industry generally uses exhaust valve sheets to achieve the function of preventing backflow of gas. However, in actual use, this conventional design has significant defects.
[0003] When the compressor is in the shutdown state, the exhaust valve sheet will face two major problems. On the one hand, the lubricating oil may stick the exhaust valve sheet to the exhaust valve seat. During the operation of the compressor, the lubricating oil will circulate in the system to play the roles of lubrication, cooling, etc. After shutdown, part of the lubricating oil will adhere to the surface of the exhaust valve sheet and the valve seat. Due to the viscosity of the lubricating oil, the exhaust valve sheet and the valve seat may be stuck, so that the valve sheet cannot respond to the closing action in time. On the other hand, the backflow of gas from the exhaust port will interfere with the exhaust valve sheet. At the moment when the compressor stops working, the pressure in the system is unbalanced, and there will be backflow of gas from the exhaust port. The impact force of this backflow of gas may hinder the normal closing of the exhaust valve sheet.
[0004] To solve the above problems, the prior art uses a scheme of installing a flow guide on the periphery of the exhaust valve. When the gas backflows from the exhaust port of the compressor to the exhaust valve port, the flow guide can guide the direction of the gas flow, so that the gas flow is applied to the exhaust valve from top to bottom, thereby pushing the exhaust valve sheet to close. However, this scheme has obvious disadvantages. As a new component, the flow guide increases the manufacturing cost. Moreover, the installation of the flow guide on the exhaust valve seat or the partition plate is complex, which requires a large amount of labor hours, thereby increasing the labor cost and the difficulty and cost of production management. For example, in mass production, strict quality control and process coordination are required for the installation of the flow guide, which leads to a significant increase in management cost. In summary, the existing technical scheme for preventing backflow of gas has deficiencies in cost and assembly management, which needs to be improved. SUMMARY
[0005] In view of the above technical problems, one object of the utility model is to provide a partition plate and a compressor with the partition plate, which has a simple structure and low manufacturing cost, and can effectively guide the backflow of gas to be applied to the exhaust valve from top to bottom, so that the exhaust valve sheet can close in time.
[0006] Specifically, the utility model provides a partition plate, which has a middle hole in fluid communication with an exhaust port of a compression mechanism of a compressor;
[0007] The edge of the middle hole extends upward from the plane of the middle hole and forms a hollow cylindrical structure around the outside of the exhaust valve stopper, the top end of the cylindrical structure is flush with or higher than the top end of the exhaust valve stopper.
[0008] Further, the angle between the direction in which the edge of the middle hole extends upward and the axis of the plane of the middle hole is within the range of 0±45 degrees.
[0009] Further, the top end of the cylindrical structure is 0-40mm higher than the top end of the exhaust valve stopper.
[0010] Further, the thickness of the cylindrical structure is within the range of 1-8mm.
[0011] According to an embodiment of the present application, there is a gap between the cylindrical structure and the exhaust valve allowing airflow to flow through.
[0012] Further, the single-sided gap between the inner wall of the cylindrical structure and the stopper is within the range of 0.5-15mm, preferably within the range of 1-7mm.
[0013] According to another embodiment of the present application, the exhaust valve stopper and the inner wall of the cylindrical structure cooperate to form a sound-absorbing cavity.
[0014] According to another embodiment of the present application, the top end of the cylindrical structure is higher than the exhaust valve stopper, and the top end of the cylindrical structure is closed.
[0015] Further, the upper surface of the exhaust valve stopper is distributed with a plurality of holes for passing gas or reducing noise.
[0016] Further, the top end or the side of the cylindrical structure is distributed with a plurality of holes.
[0017] The partition plate and the cylindrical structure in the present application are integrally formed by an integral forming process, or the integral piece is formed once, and then the cylindrical structure is stretched and formed. The thickness of the partition plate can be uniform or non-uniform.
[0018] The present application also provides a compressor with the above partition plate. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only one embodiment of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0020] Figure 1(a) is a schematic view of the partition plate extending upward to form a cylinder of the utility model;
[0021] Figure 1(b) is a top view of the partition plate extending upward to form a cylinder of the utility model;
[0022] Figure 2 Figure 1(c) is a schematic view of the partition plate extending upward to form a conical barrel of the utility model;
[0023] Figure 3(a) is a schematic view of the gap between the cylinder structure and the exhaust valve of the utility model;
[0024] Figure 3(b) is an enlarged view of the gap between the cylinder structure and the exhaust valve of the utility model;
[0025] Figure 4 Figure 3(c) is a schematic view of the closed top end of the cylinder structure of the utility model. DETAILED DESCRIPTION
[0026] The specific embodiments of the utility model described below in conjunction with the drawings can more clearly understand the details of the utility model. However, the specific embodiments of the utility model described herein are only used to explain the purpose of the utility model, and cannot be understood in any way as a limitation on the utility model. Under the guidance of the utility model, the skilled person can conceive any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model.
[0027] Example 1:
[0028] The utility model provides a kind of partition plate 10, the partition plate has the middle hole 20 being in fluid communication with the exhaust port of the compression mechanism of compressor;The edge of the middle hole 20 extends upward from the plane of the middle hole and forms hollow cylinder structure 30 around the outside of exhaust valve 40 stop portion 401, the top end 301 of the cylinder structure 30 is flush with the stop portion 401 of the exhaust valve 40 or higher than the stop portion 401 of the exhaust valve 40.Exhaust valve is fixed on the static scroll of compressor. By this simple structure, the partition plate structure with low manufacturing cost, it can ensure that exhaust valve piece can be closed in time under the condition such as shutdown, effectively prevent gas backflow, improve compressor performance and service life.
[0029] Regarding the specific setting of partition plate structure, the optimization of some related parameters is also important for the improvement of overall performance.
[0030] The angle between the direction of the edge of the middle hole 20 extending upward and the axis of the plane of the middle hole 20 is within the range of 0±45 degrees. When the angle is 0 degrees, that is, the edge of the middle hole 20 extends vertically upward, the guiding effect on the air flow is the most direct, but in some cases, it may have some impact on the structural strength of the partition plate 10. As the angle gradually increases, the structural strength of the partition plate 10 can be enhanced to some extent, but if the angle is too large, more than 45 degrees, the flow path of the air flow in the cylindrical structure 30 will become more complex, which may cause the energy loss of the air flow to increase, reducing the pushing effect on the exhaust valve 40 piece.
[0031] The cylindrical structure 30 can be a cylinder, a conical barrel, etc. As shown in FIGS. 1(a) and (b), the cylindrical structure 30 is a cylindrical shape with the edge of the middle hole 20 extending vertically upward; as shown in FIGS. 1(c) and (d), the cylindrical structure 30 is a conical barrel shape with the edge of the middle hole 20 extending upward at an angle of 45 degrees from the axis of the plane of the middle hole 20. Figure 2 The cylindrical structure 30 can be a cylinder, a conical barrel, etc. As shown in FIGS. 1(a) and (b), the cylindrical structure 30 is a cylindrical shape with the edge of the middle hole 20 extending vertically upward; as shown in FIGS. 1(c) and (d), the cylindrical structure 30 is a conical barrel shape with the edge of the middle hole 20 extending upward at an angle of 45 degrees from the axis of the plane of the middle hole 20.
[0032] The height of the cylindrical structure 30 needs to be reasonably selected according to the specific working requirements and structural design of the compressor. Generally, the height of the cylindrical structure 30 relative to the top end of the exhaust valve 40 stop portion 401 can be between 0-40mm. If the extension height is too low, the backflow air flow may not be effectively guided, causing the exhaust valve 40 to fail to close in time; if the extension height is too high, not only the material cost and processing difficulty will increase, but also it may have an adverse effect on the overall structural layout of the compressor.
[0033] The thickness of the partition plate 10 also needs to be reasonably determined in actual application according to the working pressure, structural strength requirements and cost of the compressor, etc. In the present application, the thickness of the partition plate 10 can be uniform or non-uniform as a whole. If the partition plate 10 is too thin, it may not be able to withstand the pressure inside the compressor, causing deformation or even rupture; if the partition plate 10 is too thick, although the structural strength can be improved, the material cost and weight will increase, and the processing difficulty will also increase. Therefore, for the thickness design of the cylindrical structure 30, the present application is within the range of 1-8mm.
[0034] Example 2:
[0035] This embodiment is an improvement based on Embodiment 1. In this embodiment, there is a gap between the cylinder structure 30 and the exhaust valve 40 that allows airflow to flow through. As shown in Figs. 3(a) and (b), the single-sided gap D between the inner wall of the cylinder structure 30 and the stop portion 401 is in the range of 0.5-15 mm. Preferably, the single-sided gap D between the inner wall of the cylinder structure 30 and the stop portion 401 is in the range of 1-7 mm.
[0036] Other embodiments of this embodiment are the same as Embodiment 1.
[0037] By using this embodiment, in addition to enabling the cylinder structure 30 to effectively guide airflow, it also reduces airflow noise.
[0038] Embodiment 3:
[0039] This embodiment is an improvement based on Embodiment 1. In this embodiment, the stop portion 401 of the exhaust valve 40 cooperates with the inner wall of the cylinder structure 30 to form a sound-absorbing cavity, which reduces airflow noise.
[0040] Other embodiments of this embodiment are the same as Embodiment 1.
[0041] Embodiment 4:
[0042] This embodiment is an improvement based on Embodiment 1. In this embodiment, the top end of the cylinder structure 30 is higher than the stop portion 401 of the exhaust valve 40, and the top end of the cylinder structure 30 is closed, as shown in Figure 4 The top end 301 or side of the cylinder structure 30 can be provided with multiple holes, which enables the cylinder structure 30 to effectively guide airflow and also reduces airflow noise.
[0043] Embodiment 5:
[0044] This embodiment provides a compressor having the structure of any one of Embodiments 1-4; other embodiments of this embodiment are the same as described in Embodiments 1-4.
[0045] Compared with the prior art solution of installing a flow guide member around the exhaust valve, the utility model does not need to add a complex flow guide member. Only a simple flanging treatment of the hole in the partition plate forms a cylinder structure, which reduces the number and types of parts, and reduces the cost of raw materials. At the same time, the simplified structure makes the production and assembly process more convenient, saves assembly time, reduces labor costs and production management costs, and improves production efficiency.
[0046] Those skilled in the art will appreciate that the features described with respect to one aspect of the present application are equally applicable to the other aspects of the present application. While various embodiments of the present application have been described herein, it should be understood that they are not limited to the specific embodiments described herein, but include any and all implementations falling within the scope of the present application. All such modifications and variations are considered to fall within the scope of the present application. Furthermore, all the features described herein can be replaced by other technically equivalent features.
Claims
1. A partition plate, characterized in that, the partition plate has a middle hole in fluid communication with an exhaust port of a compression mechanism of a compressor; an edge of the middle hole extends upward from a plane of the middle hole and forms a hollow cylindrical structure around an outer side of an exhaust valve stopper, a top end of the cylindrical structure is flush with or higher than a top end of the exhaust valve stopper.
2. The divider plate of claim 1, wherein an angle between a direction in which the edge of the middle hole extends upward and an axis of the plane of the middle hole is within a range of 0±45 degrees.
3. The divider plate of claim 1, wherein the top end of the cylindrical structure is 0-40mm higher than the top end of the exhaust valve stopper.
4. The divider plate of claim 1, wherein a thickness of the cylindrical structure is within a range of 1-8mm.
5. The partition panel according to any one of claims 1 to 4, characterized in that a gap between the cylindrical structure and the exhaust valve exists to allow gas flow to pass through.
6. The bulkhead of claim 5, wherein a single-side gap between an inner wall of the cylindrical structure and the stopper is within a range of 0.5-15mm.
7. The divider plate of claim 5, wherein a single-side gap between an inner wall of the cylindrical structure and the stopper is within a range of 1-7mm.
8. The bulkhead of any one of claims 1-4, wherein, the exhaust valve stopper and the inner wall of the cylindrical structure cooperate to form a sound attenuation cavity.
9. The bulkhead of any one of claims 1-4, wherein, the top end of the cylindrical structure is higher than the exhaust valve stopper, and the top end of the cylindrical structure is closed.
10. The bulkhead of claim 9, wherein a top surface of the exhaust valve stopper is provided with a plurality of holes for passing gas or reducing noise.
11. The bulkhead of claim 9, wherein a top end or a side of the cylindrical structure is provided with a plurality of holes.
12. The bulkhead of claim 1, wherein the partition plate and the cylindrical structure are integrally formed as one piece, or the one piece is formed by one-time forming and then stretching the cylindrical structure.
13. The bulkhead of claim 1, wherein the thickness of the partition plate is uniform or non-uniform.
14. A compressor characterized by, a partition plate according to any one of claims 1-13.