CN114233909A - Pipe clamp assembly - Google Patents
Pipe clamp assembly Download PDFInfo
- Publication number
- CN114233909A CN114233909A CN202210038354.XA CN202210038354A CN114233909A CN 114233909 A CN114233909 A CN 114233909A CN 202210038354 A CN202210038354 A CN 202210038354A CN 114233909 A CN114233909 A CN 114233909A
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- China
- Prior art keywords
- throttling
- ring
- annular
- circular plate
- rubber ring
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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.)
- Pending
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- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 18
- 239000012530 fluid Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
- F16K21/08—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with ball-shaped closing members
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a pipe clamp assembly. A pipe clamp assembly comprises an upper half tile, a lower half tile, a sealing rubber ring and a throttling assembly, wherein the throttling assembly comprises an annular ring, a throttling circular plate and an annular protruding ring, and the annular ring, the annular protruding ring arranged on the outer surface of the annular ring and the throttling circular plate arranged on the inner surface of the annular protruding ring are integrally formed. The throttling circular plate is provided with a circular through hole structure in the middle or is provided with at least 3 through hole structures on at least 1 circumferential line on the vertical surface between the center of the throttling circular plate and the outer circumference thereof; the sum of the end surface areas of one circular through hole arranged in the middle of the throttling circular plate or the end surface areas of at least 3 through holes sequentially arranged on at least 1 circumferential line of the center of the throttling circular plate and the vertical surface of the throttling circular plate is 1/4-3/4 of the transverse vertical cross-sectional area of the throttling circular plate. The aim of balancing the front pressure and the rear pressure of the pipeline system is fulfilled, and the installation efficiency of the pipeline system is improved; the risk of pipeline installation leakage is reduced.
Description
Technical Field
The invention belongs to a pipe clamp, in particular to a pipe clamp component.
Background
At present, when the front-back pressure difference of a pipeline system is large (generally, when a pipeline with a large diameter is connected with a pipeline with a small diameter or two pipelines with different fluid pressures are connected), the front-back pressure of the pipeline system is balanced by increasing a throttling orifice plate, so that the stable operation of fluid in the pipeline is realized. The principle is as follows: when the fluid flows in the pipeline, the pressure of the fluid is reduced and energy is lost due to the local resistance of the throttling orifice plate, and the phenomenon is thermodynamically called throttling phenomenon. The prior orifice plate is typically a separate component that is connected to the piping by flanges, grooves, or welds. The throttling orifice is connected with the pipeline system through a flange, a groove or welding, so that the workload of installing the throttling orifice on a pipeline installation site is increased, the consumption of pipeline installation materials is increased, and the installation efficiency of the pipeline system is reduced; secondly, the number of connecting points is increased, and the leakage risk is increased. How to realize the balance of the front and back pressure of the pipeline system, the purpose of stable operation of fluid in the pipeline, how to reduce the workload of pipeline field installation, reduce the consumption of pipeline installation materials and improve the installation efficiency of the pipeline system; the problem that the on-spot erection joint of pipeline is reduced, it reveals the risk to be solved to reduce the piping erection.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a tube clamp assembly is provided. The pipe clamp assembly can balance the front pressure and the rear pressure of a pipeline system and realize the purpose of stable operation of fluid in a pipeline; the workload of on-site installation of the pipeline can be reduced, the consumption of pipeline installation materials is reduced, and the installation efficiency of a pipeline system is improved; and the on-site installation connection points of the pipeline are reduced, and the leakage risk of pipeline installation is reduced.
The technical scheme for solving the technical problems is as follows: the utility model provides a pipe strap subassembly, including first tile, second tile, sealing rubber ring, first tile internal surface has some indent sealing washer storehouse and second tile internal surface has some indent sealing washer storehouse and constitutes pipe strap sealing rubber ring storehouse, be provided with throat indent cavity on the sealing rubber ring internal surface, the sealing rubber ring left side that is provided with throat indent cavity, the right side both sides constitute left annular lip guard and right annular lip guard respectively, in A pipeline section one end sliding mounting pipe strap sealing rubber ring storehouse left side part space, when in B pipeline section one end sliding mounting pipe strap sealing rubber ring storehouse right side part space, have the distance between A pipeline section tip and the B pipeline section tip, characterized by: the throttling assembly comprises an annular ring, a throttling circular plate and an annular convex ring, the annular convex ring is arranged on the center line of the vertical section of the outer surface of the annular ring, the throttling circular plate is arranged on the center line of the vertical section of the inner surface of the annular ring, and the annular ring, the annular convex ring and the throttling circular plate are integrally formed to form the throttling assembly;
the throttling circular plate of the throttling component is of a structure with a circular through hole arranged in the middle or one of at least 3 through hole structures is sequentially arranged on at least 1 circumferential line arranged on the vertical surface between the center of the throttling circular plate and the outer circumference of the throttling circular plate; the sum of the end surface areas of one circular through hole arranged in the middle of the throttling circular plate or the end surface areas of at least 3 through holes sequentially arranged on at least 1 circumferential line of the center of the throttling circular plate and the vertical surface of the throttling circular plate is 1/4-3/4 of the transverse vertical cross-sectional area of the throttling circular plate;
3, 5, 7, 9 and 12 through holes are sequentially arranged on 5 circumferential lines on the vertical surface between the center of the throttling circular plate and the outer circumference of the throttling circular plate;
the width of the annular ring is consistent with that of the pipe clamp rubber ring bin, the width of the annular bulge ring is consistent with the distance between the end part of the pipeline A and the end part of the pipeline B, and the height of the annular bulge ring is consistent with the thickness of the pipe wall of the pipeline A or the pipeline B;
the throttling component and the sealing rubber ring are in an integral structure or an independent structure;
the annular protruding rubber ring part is arranged on the part of the adjacent left annular protective lip and the right annular protective lip of the necking inwards concave cavity on the inner surface of the sealing rubber ring, the throttling component further comprises an annular protruding ring annular protruding extending part, the annular protruding ring and the annular protruding ring annular protruding extending part are integrally formed, the throttling component is embedded and compounded into a whole with the annular protruding ring annular protruding extending part integrally formed with the annular protruding ring annular protruding extending part arranged in the necking inwards concave cavity of the sealing rubber ring, and the throttling component is embedded and compounded into a whole with the annular protruding ring annular protruding extending part integrally formed with the annular protruding ring annular protruding extending part arranged in the necking inwards concave cavity of the sealing rubber ring and is arranged in a whole structure with the sealing rubber ring.
When the invention is used: a throttling assembly which is of an independent arrangement structure with a sealing rubber ring is arranged between the end part of the pipeline section A and the end part of the pipeline section B and is positioned in a space corresponding to a pipe clamp sealing rubber ring bin, and an annular protruding ring of the throttling assembly is positioned in the space between the end part of the pipeline section A and the end part of the pipeline section B, so that the throttling assembly is prevented from moving between the end part of the pipeline section A and the end part of the pipeline section B; or the throttling assembly which is integrally arranged with the sealing rubber ring is arranged between the end part of the pipeline section A and the end part of the pipeline section B and is positioned in a space corresponding to the pipe clamp sealing rubber ring bin, and the part of the annular protruding ring of the throttling assembly, which is positioned between the annular ring and the annular protruding rubber ring, prevents the throttling assembly from moving between the end part of the pipeline section A and the end part of the pipeline section B; and two sets of bolts and nuts respectively arranged on two screw holes of ear plates at the two ends of the upper half tile and the lower half tile are screwed to realize the sealing and fixed connection of the pipeline section A, the throttling assembly and the pipeline section B.
The invention has the beneficial effects that: because the throttling component is arranged, the throttling component comprises an annular ring, a throttling circular plate and an annular projecting ring, and the annular ring, the annular projecting ring and the throttling circular plate are integrally formed to form the throttling component; the throttling circular plate of the throttling component is provided with a circular through hole structure in the middle or is provided with at least 3 through hole structures on at least 1 circumferential line on the vertical surface between the center of the throttling circular plate and the outer circumference thereof; the sum of the end surface areas of one circular through hole arranged in the middle of the throttling circular plate or the end surface areas of at least 3 through holes sequentially arranged on at least 1 circumferential line of the center of the throttling circular plate and the vertical surface of the throttling circular plate is 1/4-3/4 of the transverse vertical cross-sectional area of the throttling circular plate. The device realizes the purposes of balancing the front and rear pressures of the pipeline system and realizing the stable operation of fluid in the pipeline, also reduces the workload of pipeline field installation, reduces the consumption of pipeline installation materials and improves the installation efficiency of the pipeline system; and the number of pipeline field installation connection points is reduced, and the pipeline installation leakage risk is reduced.
At least 1 circumferential line on the vertical surface between the center of the throttling circular plate and the outer circumference of the throttling circular plate of the throttling component is provided with one of at least 3 through hole structures in sequence. The structure design of the throttling round plate of the throttling component effectively disperses the impact of the throttling fluid on the throttling round plate, thereby prolonging the service life of the throttling component; the design of the throttling circular plate net-shaped porous structure of the throttling component also effectively disperses and impacts the water hammer, prevents the water hammer from damaging the throttling component, and prolongs the service life of the throttling component.
Drawings
The invention is further explained below with reference to the figures and examples;
FIG. 1, FIG. 2, FIG. 3 and FIG. 4 are schematic structural views of embodiment 1 of the present invention;
FIG. 5, FIG. 6, FIG. 7 and FIG. 8 are schematic structural views of embodiment 2 of the present invention;
in the drawings: 1. the pipe clamp comprises an upper half tile, a lower half tile, a sealing rubber ring, a pipe clamp sealing rubber ring bin, a reducing concave cavity, a pipeline section 5.A, a pipeline section 6.B, a throttling assembly 7, an annular ring 71, a throttling circular plate 72, an annular projecting ring 73, an annular through hole 721, a through hole 722, an annular projecting rubber ring part 32, and an annular projecting ring annular projecting extension part 731.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
Example 1
As shown in fig. 1, fig. 2, fig. 3, fig. 4 shows, a pipe strap subassembly, including first tile 1, second tile 2, sealing rubber ring 3, first tile 1 internal surface has indent sealing washer storehouse and second tile 2 internal surface has indent sealing washer storehouse to constitute pipe strap sealing rubber ring storehouse 4, 3 appearances of sealing rubber ring and 4 internal surface profile types in pipe strap sealing rubber ring storehouse, be provided with throat indent cavity 31 on 3 internal surfaces of sealing rubber ring, 3 left sides of sealing rubber ring that is provided with throat indent cavity 31, right side both sides constitute left annular lip and right annular lip respectively, in 5 one end sliding mounting pipe strap sealing rubber ring storehouses 4 left side part spaces of A pipeline section, when 6 one end sliding mounting pipe strap sealing rubber ring storehouses 4 right side part spaces of B pipeline section, have the distance between 5 tip of A pipeline section and 6 tips of B pipeline section, characterized by: the throttling assembly 7 is further included, the throttling assembly 7 comprises an annular ring 71, a throttling circular plate 72 and an annular projecting ring 73, the outer diameter of the annular ring 71 is consistent with the inner diameter of the annular projecting ring 73, the inner diameter of the annular ring 71 is consistent with the outer diameter of the throttling circular plate 72, the annular projecting ring 73 is arranged on the central line of the vertical section of the outer surface of the annular ring 71, the throttling circular plate 72 is arranged on the central line of the vertical section of the inner surface of the annular ring 71, and the annular ring 71, the annular projecting ring 73 arranged on the outer surface of the annular ring 71 and the throttling circular plate 72 arranged on the inner surface of the annular ring 71 are integrally formed to form the throttling assembly 7;
the 5 circumferential lines on the vertical surface between the center of the throttling circular plate 72 and the outer circumference thereof are sequentially provided with 3, 5, 7, 9 and 12 through holes 722, and the sum of the end surface areas of the 3, 5, 7, 9 and 12 through holes 722 sequentially arranged on the 5 circumferential lines on the vertical surface between the center of the throttling circular plate 72 and the outer circumference thereof is 3/4 of the transverse vertical cross-sectional area of the throttling circular plate 72;
the width of the annular ring 71 is consistent with that of the pipe clamp rubber ring bin 4, the width of the annular projecting ring 73 is consistent with the distance between the end part of the pipeline section A5 and the end part of the pipeline section B6, and the height of the annular projecting ring is consistent with the thickness of the pipe wall of the pipeline section A5 or the pipeline section B6;
the throttling component 7 and the sealing rubber ring 3 are of an independent arrangement structure.
Example 2
As shown in fig. 5, fig. 6, fig. 7, fig. 8 shows, a pipe strap subassembly, including first tile 1, second tile 2, sealing rubber ring 3, first tile 1 internal surface has indent sealing washer storehouse and second tile 2 internal surface has indent sealing washer storehouse to constitute pipe strap sealing rubber ring storehouse 4, 3 appearances of sealing rubber ring and 4 internal surface profile types in pipe strap sealing rubber ring storehouse, be provided with throat indent cavity 31 on 3 internal surfaces of sealing rubber ring, 3 left sides of sealing rubber ring that is provided with throat indent cavity 31, right side both sides constitute left annular lip and right annular lip respectively, in 5 one end sliding mounting pipe strap sealing rubber ring storehouses 4 left side part spaces of A pipeline section, when 6 one end sliding mounting pipe strap sealing rubber ring storehouses 4 right side part spaces of B pipeline section, have the distance between 5 tip of A pipeline section and 6 tips of B pipeline section, characterized by: the throttling assembly 7 is further included, the throttling assembly 7 comprises an annular ring 71, a throttling circular plate 72 and an annular projecting ring 73, the outer diameter of the annular ring 71 is consistent with the inner diameter of the annular projecting ring 73, the inner diameter of the annular ring 71 is consistent with the outer diameter of the throttling circular plate 72, the annular projecting ring 73 is arranged on the central line of the vertical section of the outer surface of the annular ring 71, the throttling circular plate 72 is arranged on the central line of the vertical section of the inner surface of the annular ring 71, and the annular ring 71, the annular projecting ring 73 arranged on the outer surface of the annular ring 71 and the throttling circular plate 72 arranged on the inner surface of the annular ring 71 are integrally formed to form the throttling assembly 7;
the throttling circular plate 72 is of a structure that a circular through hole 721 is arranged in the middle, and the end surface area of the circular through hole 721 arranged in the middle of the throttling circular plate 72 is 1/4 of the transverse vertical cross-sectional area of the throttling circular plate 72;
the width of the annular ring 71 is consistent with that of the pipe clamp rubber ring bin 4, the width of the annular projecting ring 73 is consistent with the distance between the end part of the pipeline section A5 and the end part of the pipeline section B6, and the height of the annular projecting ring is consistent with the thickness of the pipe wall of the pipeline section A5 or the pipeline section B6;
the throttling component 7 and the sealing rubber ring 3 are in an integrated structure;
the part of the inner surface necking inwards-concave cavity 31 of the sealing rubber ring 3 adjacent to the left annular protective lip and the right annular protective lip is provided with an annular protruding rubber ring part 32, the throttling component 7 further comprises an annular protruding ring annular protruding extending part 731, the annular protruding ring 73 and the annular protruding ring annular protruding extending part 731 are integrally formed, the throttling component 7 is integrally embedded and compounded with the annular protruding ring annular protruding extending part 731 integrally formed with the annular protruding ring and the annular protruding rubber ring part 32 arranged in the necking inwards-concave cavity 31 of the sealing rubber ring, and the throttling component 7 is integrally embedded and compounded with the annular protruding ring annular protruding extending part 731 and the annular protruding rubber ring part 32 arranged in the necking inwards-concave cavity of the sealing rubber ring to form an integral structure with the sealing rubber ring 3.
From the above description, those skilled in the art can make various changes and modifications within the scope of the technical idea of the present invention without departing from the scope of the invention. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.
Attached: comparison table of using effect results of 100 traditional throttle orifice plate and pipeline system connections and 100 pipe clamp assemblies of the invention
Claims (6)
1. The utility model provides a pipe strap subassembly, including first tile, second tile, sealing rubber ring, first tile internal surface has some indent sealing washer storehouse and second tile internal surface has some indent sealing washer storehouse and constitutes pipe strap sealing rubber ring storehouse, be provided with throat indent cavity on the sealing rubber ring internal surface, the sealing rubber ring left side that is provided with throat indent cavity, the right side both sides constitute left annular lip guard and right annular lip guard respectively, in A pipeline section one end sliding mounting pipe strap sealing rubber ring storehouse left side part space, when in B pipeline section one end sliding mounting pipe strap sealing rubber ring storehouse right side part space, have the distance between A pipeline section tip and the B pipeline section tip, characterized by: the throttling assembly comprises an annular ring, a throttling circular plate and an annular convex ring, the annular convex ring is arranged on the center line of the vertical section of the outer surface of the annular ring, the throttling circular plate is arranged on the center line of the vertical section of the inner surface of the annular ring, and the annular ring, the annular convex ring and the throttling circular plate are integrally formed to form the throttling assembly.
2. The tube clamp assembly of claim 1, wherein: the throttling circular plate of the throttling component is of a structure with a circular through hole arranged in the middle or one of at least 3 through hole structures is sequentially arranged on at least 1 circumferential line arranged on the vertical surface between the center of the throttling circular plate and the outer circumference of the throttling circular plate; the sum of the end surface areas of one circular through hole arranged in the middle of the throttling circular plate or the end surface areas of at least 3 through holes sequentially arranged on at least 1 circumferential line of the center of the throttling circular plate and the vertical surface of the throttling circular plate is 1/4-3/4 of the transverse vertical cross-sectional area of the throttling circular plate.
3. The tube clamp assembly of claim 2, wherein: 3, 5, 7, 9 and 12 through holes are sequentially arranged on 5 circumferential lines on the vertical surface between the center of the throttling circular plate and the outer circumference of the throttling circular plate.
4. The tube clamp assembly of claim 1, wherein: the width of the annular ring is consistent with that of the pipe clamp rubber ring bin, and the width of the annular protruding ring is consistent with the distance between the end part of the pipeline A and the end part of the pipeline B.
5. The tube clamp assembly of claim 1, wherein: the throttling component and the sealing rubber ring are of an integrated structure or of an independent structure.
6. The tube clamp assembly of claim 5, wherein: the annular protruding rubber ring part is arranged on the part of the adjacent left annular protective lip and the right annular protective lip of the necking inwards concave cavity on the inner surface of the sealing rubber ring, the throttling component further comprises an annular protruding ring annular protruding extending part, the annular protruding ring and the annular protruding ring annular protruding extending part are integrally formed, the throttling component is embedded and compounded into a whole with the annular protruding ring annular protruding extending part integrally formed with the annular protruding ring annular protruding extending part arranged in the necking inwards concave cavity of the sealing rubber ring, and the throttling component is embedded and compounded into a whole with the annular protruding ring annular protruding extending part integrally formed with the annular protruding ring annular protruding extending part arranged in the necking inwards concave cavity of the sealing rubber ring and is arranged in a whole structure with the sealing rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038354.XA CN114233909A (en) | 2022-01-13 | 2022-01-13 | Pipe clamp assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210038354.XA CN114233909A (en) | 2022-01-13 | 2022-01-13 | Pipe clamp assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233909A true CN114233909A (en) | 2022-03-25 |
Family
ID=80746460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210038354.XA Pending CN114233909A (en) | 2022-01-13 | 2022-01-13 | Pipe clamp assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233909A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2143712Y (en) * | 1992-11-13 | 1993-10-13 | 郭长岭 | Wear-resistance flow regulator |
| CN200949666Y (en) * | 2006-09-08 | 2007-09-19 | 鞍山市流体设备制造有限公司 | Rapid connector butterfly valve |
| US20100071793A1 (en) * | 2008-07-25 | 2010-03-25 | Hatch Ltd. | Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate |
| CN203517156U (en) * | 2013-10-21 | 2014-04-02 | 吉林省华通制药设备有限公司 | Sanitary type integrated flow restriction orifice plate |
| US20170307125A1 (en) * | 2016-04-23 | 2017-10-26 | The Boeing Company | Orifice Fitting |
| CN208185686U (en) * | 2018-05-07 | 2018-12-04 | 玫德集团有限公司 | A kind of flexible i.e. tubulature card |
| CN111022813A (en) * | 2019-12-03 | 2020-04-17 | 四川大学 | Porous current-limiting noise-reducing pore plate and current-limiting noise reducer formed by same |
| CN113280204A (en) * | 2021-04-09 | 2021-08-20 | 山东电力工程咨询院有限公司 | Single-stage porous throttling orifice plate and throttling device |
-
2022
- 2022-01-13 CN CN202210038354.XA patent/CN114233909A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2143712Y (en) * | 1992-11-13 | 1993-10-13 | 郭长岭 | Wear-resistance flow regulator |
| CN200949666Y (en) * | 2006-09-08 | 2007-09-19 | 鞍山市流体设备制造有限公司 | Rapid connector butterfly valve |
| US20100071793A1 (en) * | 2008-07-25 | 2010-03-25 | Hatch Ltd. | Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate |
| CN203517156U (en) * | 2013-10-21 | 2014-04-02 | 吉林省华通制药设备有限公司 | Sanitary type integrated flow restriction orifice plate |
| US20170307125A1 (en) * | 2016-04-23 | 2017-10-26 | The Boeing Company | Orifice Fitting |
| CN208185686U (en) * | 2018-05-07 | 2018-12-04 | 玫德集团有限公司 | A kind of flexible i.e. tubulature card |
| CN111022813A (en) * | 2019-12-03 | 2020-04-17 | 四川大学 | Porous current-limiting noise-reducing pore plate and current-limiting noise reducer formed by same |
| CN113280204A (en) * | 2021-04-09 | 2021-08-20 | 山东电力工程咨询院有限公司 | Single-stage porous throttling orifice plate and throttling device |
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Application publication date: 20220325 |