Reducing unit
By integrating a separation device in the decompression unit and utilizing a conveying shape design to achieve fluid purification, the problem of requiring an additional separation device in the prior art is solved, and a more space-saving fluid purification effect is achieved.
Patent Information
- Application Number
- CN202510319784.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2025-03-06
- Filing Date
- 2025-03-18
- Publication Date
- 2025-09-19
AI Technical Summary
In existing compressor units, a separate separation device is required to remove particles and dirt from the fluid, resulting in increased space occupation and manufacturing complexity.
The separation device is integrated into the decompression unit. By designing the conveying shape on the base of the decompression unit, the fluid can naturally deposit particles and dirt during the flow process, thereby achieving fluid purification.
Fluid purification can be achieved without the need for additional separation devices, which reduces space occupation and manufacturing complexity and enables a more space-saving implementation method.
Smart Images
Figure CN120667406A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a decompression unit and a compressor unit having such a decompression unit. Background Art
[0002] Known compressor units have a high-pressure region and a low-pressure region in their housing, wherein the pressure is released in a controlled manner from the high-pressure region into the low-pressure region via a pressure reduction unit.
[0003] In order to ensure that dirt and particles present in the fluid transported between the high-pressure region and the low-pressure region do not continue to migrate through the compressor unit, a separation device is provided for separating the particles and dirt from the fluid. The separation device is constructed separately from the pressure reduction unit and is arranged in the fluid flow between the high-pressure region and the low-pressure region. Summary of the Invention
[0004] The decompression unit according to the invention having the features of claim 1 has the advantage over known solutions that no separate separation device is required for separating particles and dirt from the fluid, since this is already integrated into the decompression unit. This allows for a particularly space-saving embodiment with reduced technical production effort.
[0005] According to the present invention, this is achieved by the decompression unit comprising a housing and a base. The base comprises a conveying shape configured to regulate the flow of fluid along the base. The base is arranged in a guide opening in the housing. The housing comprises a fluid supply opening and a fluid outlet opening. The base is configured to enable a fluid flow between the fluid supply opening and the fluid outlet opening in an open state. In the open state of the base, the fluid flows from the fluid supply opening to the fluid outlet opening along the direction of the conveying shape. When the base is in the open state and the fluid flows along the conveying shape, a first section of the conveying shape is configured to have a lower fluid flow velocity than a second section.
[0006] In other words, the flow through the housing is regulated by the base. In the closed state, no fluid flows from the fluid supply opening to the fluid discharge opening. When the base is open in the housing, fluid flow along the base through the guide opening is enabled. The base, in turn, has a conveying shape on its outer side that influences the flow of fluid along the base. The conveying shape is a flow regulating element, but it does not actively convey the fluid. The conveying shape has a first section and a second section. The fluid has a higher flow velocity in the first section than along the second section.
[0007] An advantage of this embodiment is that, due to the difference in flow velocity between the first and second sections, more fluid particles and dirt are deposited in the first section than in the second section and are not transported further along the conveying path. Consequently, particles and dirt are separated from the fluid as it is transported along the conveying path. This allows the fluid in the decompression unit to be purified without requiring a separate separation device.
[0008] The dependent claims reveal preferred developments of the invention.
[0009] Preferably, the conveying shape is designed as a conveying trough. The conveying trough extends between the base body and the housing, sealing the gap between the base body and the housing so that fluid cannot flow through the conveying trough. In other words, the fluid flows along the conveying trough from the fluid supply opening to the fluid discharge opening. This embodiment can have the advantage that the entire fluid flow between the fluid supply opening and the fluid discharge opening flows along the conveying trough, and the entire fluid flow through the pressure reduction unit passes through both the first section and the second section, thereby achieving the cleaning of the entire fluid flow from particles and dirt.
[0010] Preferably, the conveying shape is wound around the base body. The winding of the conveying shape in the base body has at least one change in direction in the winding. The advantage of this embodiment can be that the flow is directed around the end of the winding due to the change in direction of the winding, thereby forming a dead water area. In this dead water area, a flow difference in velocity is generated at the change in direction of the winding. This design concept forms a first section with a lower flow velocity than the second section with a simple geometry. As a result, more particles and dirt are deposited in the first section than in the second section. This simple change in the winding allows for a geometrically simple shape and is technically easy to produce.
[0011] Preferably, the conveying shape is meandering along the longitudinal direction of the substrate. The meander-like shape not only facilitates the production of a conveying shape having a first section and a second section, which offers advantages similar to those mentioned in the previous embodiments, but also creates multiple first sections where particles and dirt are deposited. Consequently, the meander-like shape achieves a higher fluid cleaning rate when flowing along the conveying shape.
[0012] Preferably, a conveying trough is formed between the guide webs of the base body. The guide webs are designed to deflect the flow at the free head ends of the guide webs. The first section of the conveying shape is arranged at the head ends of the guide webs. This embodiment can have the advantage that, by deflecting the flow at the free head ends of the guide webs, a first section is formed around the free head ends of the guide webs, which has a lower flow velocity than the second section. The second section is always located between the two edges of the guide webs. This design of the conveying trough allows for easy technical manufacturability.
[0013] Preferably, the deflection distance between the free head end and the web foot opposite it in the longitudinal direction is greater than the edge distance between the free head end and the edge of the adjacent guide web perpendicular to the longitudinal direction. This embodiment can have the advantage that it results in a first section that is large enough to form a dead zone, so that a sufficient number of particles and dirt from the fluid are deposited in this dead zone of the first section. This allows for efficient cleaning of the conveying trough along the flowing fluid.
[0014] Preferably, a braking web is arranged between the first section of the conveying shape at the free head end and the second section between the edges of the guide webs of the guide shape, the braking web being located transversely to the orientation of the second section between the first and second sections. The locking web prevents particles and dirt from flowing out of the first section into the second section. This embodiment can have the advantage of achieving a higher fluid cleaning rate.
[0015] Preferably, the braking web extends within the range of the distance between two adjacent edges of the guide web. Thus, a particularly high dirt retention rate of the fluid is achieved in the first section without hindering the flow of fluid from the preceding second section into the first section.
[0016] Preferably, the guide opening and the base body are rotationally symmetrical, in particular cylindrically configured. An advantage of this embodiment can be low manufacturing complexity of the pressure reduction unit.
[0017] Furthermore, the present invention comprises a compressor unit for compressing a fluid. The compressor unit comprises a decompression unit according to any of the preceding embodiments. Thus, the compressor unit has the advantages of the corresponding embodiments of the decompression unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the accompanying drawings:
[0019] Figure 1 shows a schematic diagram of a decompression unit according to the prior art,
[0020] Figure 2shows a schematic diagram of a base body having a delivery shape according to the prior art,
[0021] Figure 3 A schematic diagram showing a meander shape of a conveying shape according to an embodiment of the present invention,
[0022] Figure 4 shows a schematic diagram of a compressor unit having a decompression unit according to an embodiment, and
[0023] Figure 5 A schematic diagram of a compressor unit having a decompression unit according to an embodiment is shown. DETAILED DESCRIPTION
[0024] All identical elements, units and / or structural components in all figures preferably have the same reference numerals.
[0025] Figure 1 A schematic diagram of a decompression unit 10 according to the prior art is shown. The decompression unit 100 comprises a housing 10 and a base 20. The base 20 comprises a conveying shape 22, which is configured to regulate the flow of fluid along the base 20. The base 20 is arranged in a guide opening 11 in the housing 10. The housing 10 comprises a fluid supply opening 12 and a fluid outlet opening 13. The base 10 is configured to prevent fluid flow between the fluid supply opening 12 and the fluid outlet opening in a blocked state. The base 10 is configured to enable fluid flow between the fluid supply opening 12 and the fluid outlet opening 13 in an open state. In the open state of the base 20, fluid flows from the fluid supply opening 12 to the fluid outlet opening along the path of the conveying shape 22. When the base 20 is in the open state and fluid flows along the conveying shape 22, a first section 24 of the conveying shape 22 is configured to have a lower fluid flow velocity than a second section of the conveying shape 22.
[0026] Figure 2 A schematic diagram of a base body 20 with a conveying shape 22 according to the prior art is shown. The conveying shape 22 is designed as a conveying trough 21. The conveying trough 21 is arranged between the base body 20 and the housing 10. The gap between the base body 20 and the housing 10 is sealed by the conveying trough 21, so that the fluid cannot flow through it transversely to the conveying trough and is forced to flow along the conveying trough 21. The guide opening 11 and the base body 20 are designed to be rotationally symmetrical about the longitudinal direction 300 of the base body 20. The conveying trough 21 is wound around the base body 20. The winding of the conveying trough 21 has a change in direction.
[0027] Figure 3A schematic diagram illustrates the meandering course of a delivery shape 22 according to an exemplary embodiment of the present invention. The delivery shape 22 extends in a meandering manner along the longitudinal direction 300 of the base body 20. The base body 20 is pressed into a cylindrical cavity in the housing 10 and is particularly arranged in a rotationally fixed manner in the housing 10. The delivery groove 21 is formed between guide ribs 23 of the base body 20 and forms a passage for a fluid flowing through the guide groove 21 toward the housing 10. The guide ribs 23 are designed to deflect the fluid flowing along the guide groove 21 at their free head ends 23c. The first section 24 of the delivery shape 22 is arranged at the free head end 23c of the guide rib 23. The deflection distance 28 between the free head end 23c and the rib foot 23d opposite the free head end 23c in the longitudinal direction 300 is greater than the edge distance 27 between the free head end 23c and the adjacent edge of the guide rib 23 perpendicular to the longitudinal direction 300. Between the first section 24 of the conveying shape 22 at the free head end 23c and the second section 26 between the edges 23b of the guide web 23, a braking web 25 is arranged transversely to the orientation of the second section 26. The braking web 25 extends within the distance between two adjacent edges 23b of the guide web 23.
[0028] Figure 4 and Figure 5 A compressor unit 200 having a decompression unit 100 according to an embodiment of the present invention is shown separately. The housing 10 of the decompression unit 100 is integrally constructed with the housing 210 of the compressor unit 200. The compressor unit 200 has a high-pressure area and a low-pressure area. The decompression unit 100 is fluidically connected to the fluid supply opening 12 at the high-pressure area of the compressor unit 200. The decompression unit 100 is fluidically connected to the fluid outlet opening 13 at the low-pressure area of the compressor unit 200. Therefore, there is a tendency for the fluid to flow from the high-pressure area to the low-pressure area. The flow of the fluid from the high-pressure area to the low-pressure area is regulated by the decompression unit 100. In this case, a separate separation device is not required in the compressor unit 200 except for the decompression unit 100, because when the decompression unit 100 is in the open state, the fluid is already cleaned when the fluid flows along the delivery shape 22.
Claims
1. A decompression unit (100) comprising: - a housing (100), and - a base body (20), - wherein the base body (20) has a conveying shape (22) which is provided for regulating the flow of fluid along the base body (20), -in, The base body (20) is arranged in a guide opening (11) in the housing (10), wherein the housing (10) has a fluid supply opening (12) and a fluid discharge opening (13), and wherein the base body (10) is configured to enable a fluid flow between the fluid supply opening (12) and the fluid discharge opening (13) in the open state, wherein, in the open state, the fluid flows along the path of the delivery shape (22) from the fluid supply opening (12) to the fluid discharge opening (13), and wherein, when the base body (20) is in the open state and a fluid flows along the conveying shape (22), a first section (24) of the conveying shape (22) is configured to have a lower fluid flow velocity than a second section (26).
2. The decompression unit (100) according to claim 1, characterized in that The conveying shape (22) is configured as a conveying trough (21), - wherein the conveying groove (21) extends between the base body (20) and the housing (10) in the cylindrical cavity of the housing 10 and seals the gap between the base body (20) and the housing (10) so that fluid cannot flow through the conveying groove (21).
3. The decompression unit (100) according to any one of the preceding claims, characterized in that The conveying shape (22) is wound around the base body (20), and the winding has at least one change in direction.
4. The decompression unit (100) according to any one of the preceding claims, characterized in that The conveying shape (22) extends in a meandering manner along the longitudinal direction (300) of the base body (20).
5. The decompression unit (100) according to claim 4, characterized in that The conveying trough (21) is formed between the guide webs (23) of the base body (20), wherein the guide web (23) is designed to deflect the fluid at the free head end (23c) of the guide web (23), and wherein the first section (24) of the conveying shape (22) is arranged at the head end (23c) of the guide web (23).
6. The decompression unit (100) according to claim 5, characterized in that - The deflection distance (28) between the free head end (23c) and the web foot (23d) opposite the free head end (23c) along the longitudinal direction (300) is greater than the edge distance (27) between the free head end (23c) and the edge (23b) of the adjacent guide web (23) perpendicular to the longitudinal direction (300).
7. The decompression unit (100) according to claim 6, characterized in that A braking lug (25) is arranged between a first section (24) of the guide shape (22) at the free head end (23c) and a second section (26) between the edges (23b) of the guide lug (23), the braking lug being located between the first section (24) and the second section (26) transversely to the orientation of the second section (26c).
8. The decompression unit (100) according to claim 7, characterized in that The braking web (25) extends within the range of the distance between two adjacent edges (23b) of the guide web (23).
9. The decompression unit (100) according to any one of the preceding claims, characterized in that The guide opening (11) and the base body (20) are rotationally symmetrical, in particular cylindrical.
10. Compressor unit (200) for compressing a fluid, comprising a pressure reduction unit (100) according to any one of the preceding claims.