CN111664312A - Multistage subdivision formula rivers straightening device - Google Patents
Multistage subdivision formula rivers straightening device Download PDFInfo
- Publication number
- CN111664312A CN111664312A CN202010302824.XA CN202010302824A CN111664312A CN 111664312 A CN111664312 A CN 111664312A CN 202010302824 A CN202010302824 A CN 202010302824A CN 111664312 A CN111664312 A CN 111664312A
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- CN
- China
- Prior art keywords
- group
- wire mesh
- water flow
- throttle
- straightening device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a multistage subdivision type water flow straightening device which comprises an annular frame body and a rectifying assembly arranged in the annular frame body, wherein the rectifying assembly comprises a throttle plate, a first silk screen group, a second silk screen group and a guide plate which are sequentially overlapped along the axial direction of the annular frame body; the throttle plate is provided with a central hole and a plurality of throttle holes, the central hole is positioned at the center of the throttle plate, and the throttle holes are arranged around the central hole at equal intervals; the mesh number of the first wire mesh group is smaller than that of the second wire mesh group, and the meshes of the first wire mesh group and the meshes of the second wire mesh group are arranged in a staggered manner; a plurality of flow guide holes are uniformly distributed on the flow guide plate, and the diameter of each flow guide hole is smaller than that of the throttling hole; the invention can eliminate the vortex and bubble in the water flow, thereby reducing the noise and vibration in the water flow pipeline.
Description
Technical Field
The invention relates to a multistage subdivision type water flow straightening device.
Background
In the medium and low pressure water flow system, in order to adjust the water flow, an adjusting valve is additionally arranged at the outlet end of the water pump. When the regulating valve is opened, strong vibration and noise are generated in a pipeline connected with the outlet end of the regulating valve, resonance of other pipelines and the valve body is easily caused, a pipeline supporting system is damaged, and certain damage is caused to the pipeline system. Therefore, it is generally necessary to add a support body to the outside of the pipe to reinforce the pipe, but the vibration and noise of the pipe cannot be completely reduced. Although the use of a control valve having excellent performance can reduce vibration and noise to some extent, the above problems are not fundamentally solved. And the regulating valve with excellent performance is expensive, and is not beneficial to wide-range use. The main reason for the vibration and noise in the pipeline system is that when water flows in the pipeline, cavitation and unstable vortex are easily generated, and periodic disturbance is generated on the pipeline.
Disclosure of Invention
The invention aims to solve the technical problem of providing a multi-stage subdivision type water flow straightening device which can eliminate vortexes and bubbles in water flow so as to reduce noise and vibration in a water flow pipeline.
The technical scheme adopted by the invention is as follows.
A multi-stage subdivision type water flow straightening device comprises an annular frame body and a rectification assembly arranged in the annular frame body, and is characterized in that the rectification assembly comprises a throttle plate, a first silk screen group, a second silk screen group and a guide plate which are sequentially overlapped along the axial direction of the annular frame body; the throttle plate is provided with a central hole and a plurality of throttle holes, and the throttle holes are arranged around the central hole at equal intervals; the mesh number of the first wire mesh group is smaller than that of the second wire mesh group, and the meshes of the first wire mesh group and the meshes of the second wire mesh group are arranged in a staggered manner; a plurality of flow guide holes are uniformly distributed in the flow guide plate, and the diameter of each flow guide hole is smaller than that of the throttling hole.
On the basis of the technical scheme, the invention can be improved as follows:
the annular frame body comprises a first fixing ring and a second fixing ring which are axially connected with each other, an annular groove used for accommodating the rectifying assembly is formed in the connecting end face of the first fixing ring, and an annular convex edge used for pressing the rectifying assembly and matched with the annular groove is formed in the connecting end face of the second fixing ring.
The first silk screen group comprises at least one low-mesh silk screen, and meshes of two adjacent low-mesh silk screens are arranged in a staggered manner; the second silk screen group comprises at least two high-mesh silk screens, and meshes of the two adjacent high-mesh silk screens are arranged in a staggered mode.
The thickness of the throttle plate and the thickness of the flow guide plate are both larger than the thickness of the first wire mesh group and the second wire mesh group.
The diameter of the central hole is 1/3-1/2 of the diameter of the throttle plate.
Compared with the prior art, the technology of the invention has the following advantages:
(1) the multi-stage subdivision type water flow straightening device is provided with the straightening assembly, the straightening assembly comprises a throttle plate, a first wire mesh group, a second wire mesh group and a guide plate, multi-stage water flow straightening is formed, vortexes and bubbles in water flow are effectively eliminated, and therefore noise and vibration in a water flow pipeline are reduced;
(2) the multistage subdivision type water flow straightening device is simple in overall structure and beneficial to popularization.
Drawings
The invention is described in further detail below with reference to the figures and the specific embodiments
FIG. 1 is a schematic view of a multi-stage subdivision type water flow straightening device according to an embodiment of the present invention;
fig. 2 is an assembly structure diagram of the multi-stage subdivision type water flow straightening device according to the embodiment of the invention.
Reference numbers on the drawings: the device comprises a frame body 1, a first fixing ring 1a, a second fixing ring 1b, a throttle plate 2, a first wire mesh group 3, a second wire mesh group 4, a guide plate 5, a central hole 6, a throttle hole 7, a guide hole 8, an annular groove 9 and an annular convex edge 10.
Detailed Description
Referring to fig. 1-2, the multistage subdivision type water flow straightening device of the embodiment is installed at an outlet end of an adjusting valve, and includes an annular frame body 1 and a rectification assembly installed in the frame body 1, where the rectification assembly includes a throttle plate 2, a first wire mesh group 3, a second wire mesh group 4 and a guide plate 5, which are sequentially overlapped along an axial direction of the frame body 1; the throttle plate 2 is provided with a central hole 6 and a plurality of throttle holes 7, the central hole 6 is positioned at the center of the throttle plate 2, and the throttle holes 7 are arranged around the central hole 6 at equal intervals; the mesh number of the first wire mesh group 3 is smaller than that of the second wire mesh group 4, and the meshes of the first wire mesh group 3 and the meshes of the second wire mesh group 4 are arranged in a staggered manner; a plurality of flow guide holes 8 are uniformly distributed on the flow guide plate 5, and the diameter of each flow guide hole 8 is smaller than that of the throttling hole.
When water flows pass through the rectifying device in the embodiment, after the water flows are divided in multiple stages by the rectifying assembly, vortexes and bubbles in the water flows are eliminated and cut, meanwhile, the silk screen group has certain elasticity, most of impact vibration generated by turbulent flow and cavitation can be counteracted, only a small part of impact vibration is transmitted to the supporting body outside the pipeline, and the supporting body and the pipeline cannot be caused to resonate; therefore, the multi-stage subdivision type water flow straightening device in the embodiment can effectively eliminate vortexes and bubbles in water flow, so that noise and vibration in a water flow pipeline are reduced.
In this embodiment, the first screen set 3 includes a low mesh screen, the second screen set 4 includes two high mesh screens, and the meshes of the two adjacent high mesh screens are arranged in a staggered manner.
The thickness of the throttle plate 2 and the thickness of the guide plate 5 in the embodiment are both larger than the thickness of the first screen group 3 and the second screen group 4, so that the rigidity of the throttle plate and the guide plate is increased, the first screen group and the second screen group are tensioned, and when the water flow impacts the screens or the pressure difference between the front and the rear of the screens is too large, the screens are effectively prevented from being deformed in a concave mode by a large margin or even broken and damaged, and the reliability of the rectifying device is improved.
The diameter of the central hole in the embodiment is 1/3-1/2 of the diameter of the throttle plate.
The support body 1 in this embodiment includes the solid fixed ring 1a of mutual axial connection and the solid fixed ring 1b of second, and the connection terminal surface of the solid fixed ring 1a is equipped with the ring channel 9 that is used for holding the rectification subassembly, and the connection terminal surface of the solid fixed ring 1b of second is equipped with and is used for compressing tightly the rectification subassembly and protruding along 10 with the cyclic annular of ring channel 9 complex.
The method for rectifying the water flow by using the multi-stage subdivision type water flow straightening device in the embodiment comprises the following steps:
the method comprises the following steps: the regulating valve is opened, the water flow enters the rectifying device, passes through the throttle plate 2 and is divided into a plurality of water columns at one time;
step two: the water column after the primary division passes through the first wire mesh group 3 and is divided into a plurality of fine water columns for the secondary division;
step three: the water column after the secondary division passes through the second screen group 4 and is divided into a plurality of finer water columns for three times;
step four: the water column after the third division flows out of the rectifying device through the guide plate 5, and the water flow rectification is completed.
In the first step of the present embodiment, a part of the water flows through the central hole 6 of the throttle plate 2, and another part of the water flows through the throttle hole 7 of the throttle plate 2.
The water columns in the second and third steps of the present embodiment pass through the mesh openings of the respective screens, and the bubbles in the water columns break after touching the screens.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.
Claims (5)
1. A multi-stage subdivision type water flow straightening device comprises an annular frame body and a rectification assembly arranged in the annular frame body, and is characterized in that the rectification assembly comprises a throttle plate, a first silk screen group, a second silk screen group and a guide plate which are sequentially overlapped along the axial direction of the annular frame body; the throttle plate is provided with a central hole and a plurality of throttle holes, the central hole is positioned at the center of the throttle plate, and the throttle holes are arranged around the central hole at equal intervals; the mesh number of the first wire mesh group is smaller than that of the second wire mesh group, and the meshes of the first wire mesh group and the meshes of the second wire mesh group are arranged in a staggered manner; a plurality of flow guide holes are uniformly distributed in the flow guide plate, and the diameter of each flow guide hole is smaller than that of the throttling hole.
2. The multi-stage fine-fraction water flow straightening device according to claim 1, wherein the first screen group comprises at least one low-mesh screen, and meshes of two adjacent low-mesh screens are arranged in a staggered manner; the second silk screen group comprises at least two high-mesh silk screens, and meshes of the two adjacent high-mesh silk screens are arranged in a staggered mode.
3. The multi-stage, subdivided water flow straightening device according to claim 1, characterized in that the thickness of both the throttle plate and the flow guide plate is greater than the thickness of the first and second wire mesh groups.
4. The multi-stage fine-divided water flow straightening device according to claim 1, wherein the diameter of the central hole is 1/3-1/2 of the diameter of the throttling plate.
5. The multi-stage subdivided water flow straightening device according to any one of claims 1 to 4, wherein the annular frame body comprises a first fixing ring and a second fixing ring which are axially connected with each other, the connecting end surface of the first fixing ring is provided with an annular groove for accommodating the rectifying component, and the connecting end surface of the second fixing ring is provided with an annular convex edge which is used for pressing the rectifying component and matched with the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302824.XA CN111664312A (en) | 2020-04-17 | 2020-04-17 | Multistage subdivision formula rivers straightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302824.XA CN111664312A (en) | 2020-04-17 | 2020-04-17 | Multistage subdivision formula rivers straightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111664312A true CN111664312A (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010302824.XA Pending CN111664312A (en) | 2020-04-17 | 2020-04-17 | Multistage subdivision formula rivers straightening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111664312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083189A1 (en) * | 2020-10-20 | 2022-04-28 | 重庆海尔制冷电器有限公司 | Noise reduction device and refrigeration device having same |
-
2020
- 2020-04-17 CN CN202010302824.XA patent/CN111664312A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083189A1 (en) * | 2020-10-20 | 2022-04-28 | 重庆海尔制冷电器有限公司 | Noise reduction device and refrigeration device having same |
| EP4206563A4 (en) * | 2020-10-20 | 2024-03-20 | Chongqing Haier Refrigeration Electric Appliance Co Ltd | Noise reduction device and refrigeration device having same |
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