CN115013624B - Pressure reducing device - Google Patents
Pressure reducing device Download PDFInfo
- Publication number
- CN115013624B CN115013624B CN202210614992.1A CN202210614992A CN115013624B CN 115013624 B CN115013624 B CN 115013624B CN 202210614992 A CN202210614992 A CN 202210614992A CN 115013624 B CN115013624 B CN 115013624B
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- Prior art keywords
- throttle
- mounting
- plate
- throttling
- throttle plate
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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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Classifications
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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
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Abstract
The present invention provides a pressure reducing device, comprising: the installation cylinder is internally provided with an installation cavity; and the throttling assembly is arranged in the mounting cavity and comprises a first throttling plate movably arranged in the mounting cavity, the first throttling plate has a movable stroke along the axial movement of the mounting cylinder, and a first throttling hole is formed in the first throttling plate. The pressure reducing device provided by the invention aims to solve the problems of poor effect, high noise and short service life of the traditional pressure reducing device.
Description
Technical Field
The invention relates to the technical field of pressure reducing structures, in particular to a pressure reducing device.
Background
In thermal power systems, the pressure of the fluid in the various lines is reduced, such as in water pump flow regulation, which typically uses a back-flow regulation, the fluid in the back-flow line is reduced to a lower pressure and then discharged to the inlet tank or water pump inlet. The pressure reducing device commonly adopted is to utilize a valve or an orifice plate to throttle to achieve the functions, however, the general principle of valve throttling is to adjust the pressure reducing proportion by adjusting the flow passing area, which can lead to high fluid flow speed at the throttle position of the valve, thus cavitation can be further induced, the service life of a throttling assembly is shorter, and meanwhile, larger flow-induced noise can be generated, so that the surrounding environment is influenced. While orifice plate throttle can reduce cavitation to a certain extent, but its resistance coefficient is fixed value, and its pressure-reducing effect is greater along with flow change characteristic.
Disclosure of Invention
The invention provides a pressure reducing device which is used for solving the problems of poor effect, high noise and short service life of the pressure reducing device in the prior art.
The present invention provides a pressure reducing device, comprising:
the installation cylinder is internally provided with an installation cavity; the method comprises the steps of,
the throttle assembly is arranged in the installation cavity and comprises a first throttle plate movably arranged in the installation cavity, the first throttle plate is provided with a movable stroke along the axial movement of the installation cylinder, and a first throttle hole is formed in the first throttle plate.
According to the pressure reducing device provided by the invention, the throttling assembly comprises two mounting pieces and the mounting rod arranged between the two mounting pieces, the two mounting pieces are connected to the inner wall surface of the mounting cylinder, and the first throttling plate is arranged on the mounting rod in a sliding manner.
According to the pressure reducing device provided by the invention, the mounting pieces are provided with the sleeves, the sleeves are internally provided with the elastic pieces, and the two ends of the mounting rod are slidably inserted into the corresponding sleeves and are abutted against the elastic pieces.
According to the pressure reducing device provided by the invention, the throttling assembly further comprises a second throttling plate, the second throttling plate is fixedly arranged on the mounting rod, a second throttling hole is formed in the second throttling plate, and the first throttling plate has a movable stroke along the mounting rod, which is close to or far from the second throttling plate.
According to the pressure reducing device provided by the invention, the first throttling holes and the second throttling holes are staggered.
According to the pressure reducing device provided by the invention, each first throttling hole is in rectangular distribution, and each second throttling hole is in linear distribution.
According to the pressure reducing device provided by the invention, the mounting piece comprises the third throttle plates, the two third throttle plates, the first throttle plate and the second throttle plate are arranged in parallel, and the third throttle plates are respectively provided with a third throttle hole.
According to the pressure reducing device provided by the invention, the third orifices, the first orifices and the second orifices are arranged in a staggered manner, and the third orifices are distributed in a diamond shape.
According to the pressure reducing device provided by the invention, the first throttle plate, the second throttle plate and the third throttle plate are all round.
According to the pressure reducing device provided by the invention, two ends of the mounting cylinder in the axial direction are respectively provided with a connecting flange.
According to the pressure reducing device provided by the invention, the first throttle plate has a movable stroke moving along the axial direction of the mounting cylinder, the position of the first throttle plate is adaptively adjusted by utilizing the dynamic pressure principle to realize adjustment of the resistance coefficient, the pressure reducing device is used for adapting to pressure reducing requirements of different flow in a certain range, meanwhile, the flow passing area is not changed in the adjusting process, the problem of overlarge local flow velocity is not generated, cavitation is not easy to occur, larger flow-induced noise is not caused, and the quiet pressure reduction with longer service life can be realized.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a pressure relief device provided by the present invention;
FIG. 2 is a schematic cross-sectional view of the sleeve of FIG. 1;
FIG. 3 is a schematic view of the first throttle plate of FIG. 1;
reference numerals:
1: a pressure reducing device; 2: a mounting cylinder; 3: a throttle assembly; 4: a mounting cavity; 5: a connecting flange; 6: a first throttle plate; 7: a mounting member; 8: a mounting rod; 9: a second throttle plate; 10: a first orifice; 11: a sleeve; 12: an elastic member; 13: a third throttle plate; 14: a second orifice; 15: and a third orifice.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The pressure reducing device 1 of the present invention is described below with reference to fig. 1 to 3.
In view of the fact that the pressure reducing device in the prior art has poor effect, high noise and short service life, the present invention provides a pressure reducing device 1 comprising: the installation cylinder 2 is provided with an installation cavity 4 in the installation cylinder 2; and the throttling component 3 is arranged in the mounting cavity 4 and comprises a first throttling plate 6 movably arranged in the mounting cavity 4, the first throttling plate 6 has a movable stroke along the axial movement of the mounting cylinder 2, and a first throttling hole 10 is formed in the first throttling plate 6. It should be noted that, the first throttle plate 6 has a movable stroke along the axial movement of the mounting cylinder 2, and can utilize dynamic pressure principle to adaptively adjust the position to realize adjustment of resistance coefficient in the working process, so as to adapt to the pressure reduction requirements of different flow in a certain range, and meanwhile, the flow area can not be changed in the adjustment process, the problem of overlarge local flow velocity can not be generated, cavitation can not easily occur, larger flow-induced noise can not be induced, and the quiet pressure reduction with longer service life can be realized.
Further, the first throttle plate 6 needs to be installed in the installation cavity 4, and therefore a carrier needs to be installed, in the technical scheme provided by the invention, the throttle assembly 3 comprises two installation pieces 7 and an installation rod 8 arranged between the two installation pieces 7, the two installation pieces 7 are connected to the inner wall surface of the installation cylinder 2, and the first throttle plate 6 is slidably arranged on the installation rod 8. Referring to the drawings, a mounting hole is formed in the middle of the first throttle plate 6, and the first throttle plate 6 is movably sleeved on the mounting rod 8. The mounting member 7 may be provided in any shape and form, and the present invention is not limited thereto, and its main purpose is to provide a mounting carrier for the first throttle plate 6 with the inner wall surface of the mounting cylinder 2.
Further, the mounting members 7 are respectively provided with a sleeve 11, each sleeve 11 is internally provided with an elastic member 12, and two ends of the mounting rod 8 are slidably inserted into the corresponding sleeve 11 and are abutted against the elastic members 12. In this embodiment, the elastic member 12 is set as a spring, and in the process of moving the first throttle plate 6, pressure is generated on the mounting rod 8 and the mounting member 7, the elastic member 12 can provide elastic force, and under the action of the elastic force and the hydrodynamic pressure, the first throttle plate 6 is easy to keep balanced, so that the resistance coefficient of the whole device can be reduced, the decompression effect is basically unchanged after the flow is changed, and a relatively constant pressure difference is maintained.
Still further, the throttle assembly 3 further includes a second throttle plate 9, the second throttle plate 9 is fixedly disposed on the mounting rod 8, a second throttle hole 14 is formed in the second throttle plate 9, and the first throttle plate 6 has a movable stroke along the mounting rod 8 near or far from the second throttle plate 9. In the technical scheme provided by the invention, the first throttle holes 10 and the second throttle holes 14 are arranged in a staggered manner, the number and the size of the first throttle holes 10 and the second throttle holes 14 can be set differently, and in the fluid flowing process, the pressure of the fluid gradually drops under the action of the first throttle plate 6 and the second throttle plate 9 due to the change of the throttle holes and the momentum direction, so that the fluid is depressurized smoothly.
Specifically, in the present embodiment, the first orifice 10 is rectangular in distribution, and the second orifice 14 is linear in distribution. Of course, the first orifices 10 may be arranged in a linear distribution, and the second orifices 14 may be arranged in a rectangular distribution, which is not limited in the present invention.
Further, in order to enhance the decompression effect of the decompression device 1, the mounting member 7 includes a third throttle plate 13, and two third throttle plates 13, the first throttle plate 6 and the second throttle plate 9 are arranged in parallel, and the third throttle plates 13 are each provided with a third throttle hole 15. The third orifices 15 are staggered with the first orifice 10 and the second orifice 14, and the third orifices 15 are arranged in a diamond shape. According to the technical scheme provided by the invention, through the arrangement of the plurality of throttle plates, the pressure of the fluid can be gradually reduced in the process of passing through the plurality of throttle plates, so that the function of stably decompressing the fluid is realized.
Specifically, the first throttle plate 6, the second throttle plate 9 and the third throttle plate 13 are all circular, and are matched with the cross-sectional shape of the pipeline. Of course, while the cross section of the duct is provided in other shapes, the three throttle plates may be provided in other shapes, and the present invention is not limited thereto.
Further, since the pressure reducing device 1 needs to be installed in the pipe, one connecting flange 5 is provided at each of the two ends in the axial direction of the installation cylinder 2, and the pressure reducing device 1 can be installed between the pipes through the connecting flanges 5.
According to the pressure reducing device 1 provided by the invention, gradual pressure reduction is realized through the multi-level staggered multi-aperture throttle plates, the dynamic pressure principle is utilized to adaptively adjust the distance between the first throttle plate 6 and the second throttle plate 9 to realize adjustment of the resistance coefficient, the pressure reducing device is used for adapting to pressure reduction requirements of different flow in a certain range, meanwhile, the flow passing area is not changed in the adjusting process, the problem of overlarge local flow velocity is not generated, cavitation is not easy to occur, larger flow-induced noise is not caused, and long-service-life quiet pressure reduction can be realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A pressure relief device, comprising:
the installation cylinder is internally provided with an installation cavity; the method comprises the steps of,
the throttling assembly is arranged in the mounting cavity and comprises a first throttling plate movably arranged in the mounting cavity, the first throttling plate is provided with a movable stroke moving along the axial direction of the mounting cylinder, and a first throttling hole is formed in the first throttling plate; the throttling assembly further comprises two mounting pieces and a mounting rod arranged between the two mounting pieces, the two mounting pieces are connected to the inner wall surface of the mounting cylinder, the first throttling plate is arranged on the mounting rod in a sliding mode, sleeves are arranged on the mounting pieces, elastic pieces are arranged in the sleeves, and two ends of the mounting rod are inserted into the corresponding sleeves in a sliding mode and are abutted to the elastic pieces; the throttle assembly further comprises a second throttle plate, the second throttle plate is fixedly arranged on the mounting rod, a second throttle hole is formed in the second throttle plate, and the first throttle plate has a movable stroke along the mounting rod, which is close to or far from the second throttle plate; the mounting piece comprises a third throttle plate, two third throttle plates, the first throttle plate and the second throttle plate are arranged in parallel, each third throttle plate is provided with a third throttle hole, and the third throttle holes, the first throttle holes and the second throttle holes are arranged in a staggered mode.
2. The pressure relief device of claim 1, wherein each of said first orifices is rectangular in configuration and each of said second orifices is linear in configuration.
3. The pressure relief device of claim 1, wherein the third orifices are diamond shaped.
4. The pressure relief device of claim 1, wherein the first throttle plate, the second throttle plate, and the third throttle plate are each circular.
5. The pressure reducing device according to claim 1, wherein each of the two axial ends of the mounting cylinder is provided with a connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614992.1A CN115013624B (en) | 2022-05-31 | 2022-05-31 | Pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614992.1A CN115013624B (en) | 2022-05-31 | 2022-05-31 | Pressure reducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115013624A CN115013624A (en) | 2022-09-06 |
| CN115013624B true CN115013624B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210614992.1A Active CN115013624B (en) | 2022-05-31 | 2022-05-31 | Pressure reducing device |
Country Status (1)
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| CN (1) | CN115013624B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113050A (en) * | 1975-09-25 | 1978-09-12 | British Gas Corporation | Fluid-flow noise reduction systems |
| CN102384610A (en) * | 2011-06-21 | 2012-03-21 | 珠海格力电器股份有限公司 | Pore plate throttling device |
| CN202613856U (en) * | 2012-04-16 | 2012-12-19 | 重庆美的通用制冷设备有限公司 | Adjustable throttling device for water chilling unit |
| JP2013007485A (en) * | 2011-05-23 | 2013-01-10 | Blast Kogyo Kk | Sound insulating apparatus |
| CN103174853A (en) * | 2013-03-27 | 2013-06-26 | 浙江理工大学 | Built-in reducing valve easy to disassemble |
| CN105569775A (en) * | 2016-03-07 | 2016-05-11 | 广州汽车集团股份有限公司 | Exhaust muffler and vehicle with same |
| CN209115877U (en) * | 2018-11-20 | 2019-07-16 | 苏州德兰能源科技股份有限公司 | A kind of flanged fitting internal multi-stage pressure reduction structure |
| CN110107763A (en) * | 2019-05-17 | 2019-08-09 | 浙江大学 | A kind of multistage orifice plate damping coil type guide rail stable-pressure device and its method |
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| CN210687443U (en) * | 2019-09-29 | 2020-06-05 | 安徽安源流体控制设备有限公司 | Throttling orifice plate for temperature and pressure reduction device |
| CN111895175A (en) * | 2020-07-17 | 2020-11-06 | 浙江理工大学 | Mobile self-adaptive rectifying device for process valve |
| CN212718646U (en) * | 2020-08-10 | 2021-03-16 | 常州市蓝辰环保设备有限公司 | Throttle orifice plate for throttling pressure reducing device |
| CN114458501A (en) * | 2022-02-24 | 2022-05-10 | 哈尔滨工程大学 | Pressure fluctuation absorbing device of spring piston-double throttle plate |
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2022
- 2022-05-31 CN CN202210614992.1A patent/CN115013624B/en active Active
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| JP2013007485A (en) * | 2011-05-23 | 2013-01-10 | Blast Kogyo Kk | Sound insulating apparatus |
| CN102384610A (en) * | 2011-06-21 | 2012-03-21 | 珠海格力电器股份有限公司 | Pore plate throttling device |
| CN202613856U (en) * | 2012-04-16 | 2012-12-19 | 重庆美的通用制冷设备有限公司 | Adjustable throttling device for water chilling unit |
| CN103174853A (en) * | 2013-03-27 | 2013-06-26 | 浙江理工大学 | Built-in reducing valve easy to disassemble |
| CN105569775A (en) * | 2016-03-07 | 2016-05-11 | 广州汽车集团股份有限公司 | Exhaust muffler and vehicle with same |
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| CN209115877U (en) * | 2018-11-20 | 2019-07-16 | 苏州德兰能源科技股份有限公司 | A kind of flanged fitting internal multi-stage pressure reduction structure |
| CN110107763A (en) * | 2019-05-17 | 2019-08-09 | 浙江大学 | A kind of multistage orifice plate damping coil type guide rail stable-pressure device and its method |
| CN210687443U (en) * | 2019-09-29 | 2020-06-05 | 安徽安源流体控制设备有限公司 | Throttling orifice plate for temperature and pressure reduction device |
| CN111895175A (en) * | 2020-07-17 | 2020-11-06 | 浙江理工大学 | Mobile self-adaptive rectifying device for process valve |
| CN212718646U (en) * | 2020-08-10 | 2021-03-16 | 常州市蓝辰环保设备有限公司 | Throttle orifice plate for throttling pressure reducing device |
| CN114458501A (en) * | 2022-02-24 | 2022-05-10 | 哈尔滨工程大学 | Pressure fluctuation absorbing device of spring piston-double throttle plate |
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| 基于Matlab仿真分析的节流孔缓冲设计;罗铁钢;林金国;;机电设备(10);第23-24+45页 * |
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| CN115013624A (en) | 2022-09-06 |
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