CN111720648B - Plunger type pore plate - Google Patents
Plunger type pore plate Download PDFInfo
- Publication number
- CN111720648B CN111720648B CN202010406291.XA CN202010406291A CN111720648B CN 111720648 B CN111720648 B CN 111720648B CN 202010406291 A CN202010406291 A CN 202010406291A CN 111720648 B CN111720648 B CN 111720648B
- Authority
- CN
- China
- Prior art keywords
- plunger
- hole
- sleeve
- plunger sleeve
- outer circle
- Prior art date
- 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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- 239000011148 porous material Substances 0.000 title claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 229910000619 316 stainless steel Inorganic materials 0.000 description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004088 simulation 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a plunger type pore plate, which comprises a shell, a plunger sleeve and a plunger, wherein the plunger sleeve and the plunger are arranged in an inner hole of the shell; the large outer circle of the plunger is in threaded connection with the inner hole of the plunger sleeve, the small outer circle of the plunger is matched with the inner hole of the plunger sleeve, a blind hole is formed in one end, close to the small outer circle of the plunger, and a plurality of throttling holes communicated with the blind hole in quantity are arranged on the small outer circle of the plunger at intervals; the shell is respectively provided with a first channel communicated with the overflowing hole of the plunger sleeve and a second channel communicated with the blind hole; the throttling hole on the small excircle of the plunger is completely sealed by the inner hole of the plunger sleeve at the initial position, and the throttling hole can be moved to be communicated with the overflowing hole of the plunger sleeve by adjusting the axial position of the plunger. The invention improves the reliability and the adaptability of the pore plate in nuclear power application occasions.
Description
Technical Field
The invention relates to the technical field of throttling pore plates, in particular to a plunger type pore plate.
Background
The orifice plate is widely applied in the industrial field, and can realize the flow limiting function of fluid in a pipeline, so that the pressure of the fluid is reduced. However, the conventional orifice plate in the prior art has the following problems in use: firstly, the structure function is relatively simple, the throttling capacity is single, and the requirements of installation and debugging under the actual working condition on site cannot be met; secondly, the reliability is not high, the performance stability and reliability are poor when the high-temperature high-pressure nuclear power station is used in special environments such as a nuclear power station for a long time, and the service life is short.
In the national science and technology of a large advanced pressurized water reactor and high temperature gas cooled reactor nuclear power plant, a throttle orifice plate is required to prevent condensate from accumulating in a discharge pipeline, and under the normal operation condition, the orifice plate is suitable for being applied to a nuclear power plant and is designed to have the expected service life of 60 years. The orifice plate should be suitable for the design pressure, temperature and operating conditions. After the orifice plate is manufactured, the resistance performance of the orifice plate in a cold state and a hot state needs to be verified so as to meet the requirements of differential pressure, flow and outlet pressure under actual working conditions.
In view of the fact that the conventional orifice plate cannot meet the requirements of nuclear power applications, it is necessary to develop a new orifice plate with high reliability and nuclear power application adaptability through technical innovation.
Disclosure of Invention
In order to solve the problems, the invention provides a plunger type pore plate, aiming at improving the reliability and the adaptability of the pore plate in nuclear power application occasions. The specific technical scheme is as follows:
a plunger type pore plate comprises a shell and an inner core assembly arranged in an inner hole of the shell, wherein the inner core assembly comprises a plunger sleeve and a plunger arranged in the inner hole of the plunger sleeve, the excircle of the plunger sleeve comprises a section of large excircle and a section of small excircle which are mutually adjacent, the large excircle of the plunger sleeve is in threaded fit connection with the inner hole of the shell to realize axial position adjustment between the plunger sleeve and the shell, an annular gap is arranged between the small excircle of the plunger sleeve and the inner hole of the shell, and a plunger sleeve overflowing hole which is communicated with the annular gap and penetrates through the inner hole of the plunger sleeve is further arranged on the small excircle of the plunger sleeve; the outer circle of the plunger comprises a section of large outer circle and a section of small outer circle which are mutually adjacent, the large outer circle of the plunger is in threaded fit connection with the inner hole of the plunger sleeve to realize axial position adjustment between the plunger and the plunger sleeve, the small outer circle of the plunger is matched with the inner hole of the plunger sleeve, a blind hole is formed in one end, close to the small outer circle of the plunger, and a plurality of throttling holes communicated with the blind hole are formed in the small outer circle of the plunger at intervals; the shell is respectively provided with a first channel communicated with the plunger sleeve overflowing hole and a second channel communicated with the blind hole; the throttling hole on the small excircle of the plunger is completely closed by the inner hole of the plunger sleeve at the initial position, and the throttling hole can be moved to be communicated with the overflowing hole of the plunger sleeve by adjusting the axial position of the plunger.
Preferably, the hole opening close to one end of the large excircle of the plunger sleeve on the shell is also provided with a reaming hole, the reaming hole is a threaded reaming hole, and a compression plug screw is installed in the threaded reaming hole.
In the invention, a sealing gasket is arranged between the compaction screw plug and the bottom end surface of the threaded hole expansion.
Preferably, the sealing gasket is a graphite stainless steel composite gasket, and the graphite stainless steel composite gasket comprises a stainless steel gasket and graphite gaskets integrally connected to two surfaces of the stainless steel gasket respectively.
Preferably, the first channel and the second channel are stepped holes, one end of the stepped hole is a through hole, and the other end of the stepped hole is a threaded hole.
Preferably, the stepped hole of the second passage is coaxially butted with the inner hole of the housing, a bottom end face of the inner hole of the housing is formed at the joint of the inner hole of the housing and the second passage, and one end of the small outer circle of the plunger sleeve is adjusted to be in contact with the bottom end face of the inner hole of the housing through the axial position.
As a further improvement of the invention, the orifices on the small outer circle of the plunger are divided into two groups and are symmetrically arranged on two sides of the blind hole.
Preferably, the number of the overflowing holes on the plunger sleeve is two, and the overflowing holes are symmetrically arranged on two sides of the inner hole of the plunger sleeve.
In the invention, the plunger sleeve and the plunger are respectively provided with counter bores for rotation operation.
In the invention, the shell is a 316 stainless steel shell, the compression screw plug is a 316 stainless steel compression screw plug, the plunger sleeve is 316 stainless steel, and the plungers are 316 stainless steel plungers.
The invention has the beneficial effects that:
first, the high-temperature and high-pressure fluid entering the shell of the plunger type orifice plate is subjected to the double sealing action of the plunger sleeve and the compression screw plug, and the reliability is good.
Secondly, according to the plunger type pore plate, the plunger of the inner core assembly is provided with the plurality of axially arranged throttling holes, and the number of the throttling holes opened on the channel can be controlled by utilizing the axially adjustable structure of the inner core assembly, so that the requirements of installation and debugging under the actual working condition can be met, and the adaptability of nuclear power application is good.
Drawings
FIG. 1 is a schematic diagram of a plunger-type orifice plate according to the present invention;
fig. 2 is a left side view of fig. 1.
In the figure: 1. the plunger comprises a shell, 2, an inner core assembly, 3, a plunger sleeve, 4, a plunger, 5, an annular gap, 6, a plunger sleeve overflowing hole, 7, a blind hole, 8, a throttling hole, 9, a first channel, 10, a second channel, 11, a compression screw plug, 12, a sealing gasket, 13 and a counter bore for rotary operation.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
fig. 1 to 2 show an embodiment of a plunger type orifice plate according to the present invention, which includes a housing and an inner core assembly disposed in an inner hole of the housing, where the inner core assembly includes a plunger sleeve and a plunger disposed in an inner hole of the plunger sleeve, an outer circle of the plunger sleeve includes a large outer circle and a small outer circle that are adjacent to each other, the large outer circle of the plunger sleeve is in threaded fit with the inner hole of the housing to achieve axial position adjustment between the plunger sleeve and the housing, an annular gap is disposed between the small outer circle of the plunger sleeve and the inner hole of the housing, and a plunger sleeve overflow hole that communicates with the annular gap and penetrates through the inner hole of the plunger sleeve is further disposed on the small outer circle of the plunger sleeve; the outer circle of the plunger comprises a section of large outer circle and a section of small outer circle which are mutually adjacent, the large outer circle of the plunger is in threaded fit connection with the inner hole of the plunger sleeve to realize axial position adjustment between the plunger and the plunger sleeve, the small outer circle of the plunger is matched with the inner hole of the plunger sleeve, a blind hole is formed in one end, close to the small outer circle of the plunger, and a plurality of throttling holes communicated with the blind hole are arranged on the small outer circle of the plunger at intervals; the shell is provided with a first channel communicated with the overflowing hole of the plunger sleeve and a second channel communicated with the blind hole respectively; the throttling hole on the small excircle of the plunger is completely closed by the inner hole of the plunger sleeve at the initial position, and the throttling hole can be moved to be communicated with the overflowing hole of the plunger sleeve by adjusting the axial position of the plunger.
Preferably, the hole close to the orifice at one end of the large excircle of the plunger sleeve is also provided with a counterbore, the counterbore is a threaded counterbore, and a compression plug screw is installed in the threaded counterbore.
In this embodiment, a sealing gasket is disposed between the pressing plug screw and the bottom end surface of the threaded counterbore.
Preferably, the sealing gasket is a graphite stainless steel composite gasket, and the graphite stainless steel composite gasket comprises a stainless steel gasket and graphite gaskets integrally connected to two surfaces of the stainless steel gasket respectively.
Preferably, the first channel and the second channel are stepped holes, one end of the stepped hole is a through hole, and the other end of the stepped hole is a threaded hole.
Preferably, the stepped hole of the second passage is coaxially butted with the inner hole of the housing, a bottom end face of the inner hole of the housing is formed at the joint of the inner hole of the housing and the second passage, and one end of the small outer circle of the plunger sleeve is adjusted to be in contact with the bottom end face of the inner hole of the housing through the axial position.
As a further modification of the present embodiment, the orifices on the small outer circle of the plunger are divided into two groups and symmetrically arranged on both sides of the blind hole.
Preferably, the number of the overflowing holes on the plunger sleeve is two, and the overflowing holes are symmetrically arranged on two sides of the inner hole of the plunger sleeve.
In this embodiment, the plunger sleeve and the plunger are respectively provided with counter bores for rotation operation.
In this embodiment, the housing is a 316 stainless steel housing, the compression plug screw is a 316 stainless steel compression plug screw, the plunger sleeve is 316 stainless steel, and the plungers are 316 stainless steel plungers.
Example 2:
the plunger type pore plate in the embodiment 1 is applied to the nuclear power station engineering of a large advanced pressurized water reactor and a high-temperature gas cooled reactor, and a plunger type pore plate prototype is manufactured and subjected to simulation test. The results are as follows:
the design conditions are as follows:
secondly, the cold test results are as follows:
thirdly, the thermal state test results are as follows:
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A plunger type pore plate is characterized by comprising a shell and an inner core assembly arranged in an inner hole of the shell, wherein the inner core assembly comprises a plunger sleeve and a plunger arranged in the inner hole of the plunger sleeve, the excircle of the plunger sleeve comprises a section of large excircle and a section of small excircle which are mutually adjacent, the large excircle of the plunger sleeve is in threaded fit connection with the inner hole of the shell to realize axial position adjustment between the plunger sleeve and the shell, an annular gap for fluid to pass is arranged between the small excircle of the plunger sleeve and the inner hole of the shell, and a plunger sleeve overflowing hole which is communicated with the annular gap and penetrates through the inner hole of the plunger sleeve is further arranged on the small excircle of the plunger sleeve; the outer circle of the plunger comprises a section of large outer circle and a section of small outer circle which are mutually adjacent, the large outer circle of the plunger is in threaded fit connection with the inner hole of the plunger sleeve to realize axial position adjustment between the plunger and the plunger sleeve, the small outer circle of the plunger is matched with the inner hole of the plunger sleeve, a blind hole is formed in one end, close to the small outer circle of the plunger, and a plurality of throttling holes communicated with the blind hole are axially arranged on the small outer circle of the plunger at intervals; the shell is provided with a first channel communicated with the overflowing hole of the plunger sleeve and a second channel communicated with the blind hole respectively; the throttling hole on the small excircle of the plunger is completely closed by the inner hole of the plunger sleeve at the initial position, and the throttling hole can be moved to be communicated with the overflowing hole of the plunger sleeve by adjusting the axial position of the plunger.
2. The plunger type hole plate according to claim 1, wherein the hole of the shell close to the end of the large outer circle of the plunger sleeve is further provided with a counterbore, the counterbore is a threaded counterbore, and a compression screw plug separated from the plunger is arranged in the threaded counterbore.
3. The plunger-type orifice plate of claim 2, wherein a sealing gasket is disposed between the compression plug and the bottom end surface of the threaded counterbore.
4. The plunger-type orifice plate of claim 3, wherein the sealing gasket is a graphite stainless steel composite gasket, and the graphite stainless steel composite gasket comprises a stainless steel gasket and graphite gaskets integrally connected to two surfaces of the stainless steel gasket respectively.
5. The plunger-type orifice plate as set forth in claim 1, wherein the first and second passages are stepped bores having an inner end formed as a through-hole and an outer end formed as a threaded hole.
6. The plunger type orifice plate as set forth in claim 5, wherein the stepped bore of the second passage is coaxially butted against the inner bore of the housing, and forms a bottom end surface of the housing inner bore at a position where the housing inner bore is butted against the second passage, and the small outer cylindrical end of the plunger sleeve is brought into contact with the bottom end surface of the housing inner bore by adjusting the axial position.
7. The plunger-type orifice plate as set forth in claim 1, wherein the orifices on the small outer circumference of the plunger are divided into two groups and symmetrically arranged on both sides of the blind hole, and a plurality of orifices are provided in each group and axially aligned on the plunger of the core assembly.
8. The plunger type orifice plate as set forth in claim 1, wherein the number of the overflowing holes on the plunger sleeve is two and the overflowing holes are symmetrically arranged on two sides of the inner hole of the plunger sleeve.
9. The plunger type orifice plate as set forth in claim 1, wherein said plunger sleeve and said plunger are provided with counterbores for rotation operation, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406291.XA CN111720648B (en) | 2020-05-14 | 2020-05-14 | Plunger type pore plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406291.XA CN111720648B (en) | 2020-05-14 | 2020-05-14 | Plunger type pore plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111720648A CN111720648A (en) | 2020-09-29 |
| CN111720648B true CN111720648B (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010406291.XA Active CN111720648B (en) | 2020-05-14 | 2020-05-14 | Plunger type pore plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111720648B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097092A (en) * | 2020-08-26 | 2020-12-18 | 上海核工程研究设计院有限公司 | Adjustable stopper type orifice plate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1411543A1 (en) * | 1985-05-22 | 1988-07-23 | Черкасское Научно-Производственное Объединение По Защите Металлов От Коррозии,Сварочному И Раскройно-Заготовительному Производству "Комплекс" | Swivel throttle |
| CN2289919Y (en) * | 1997-02-04 | 1998-09-02 | 中国航天工业总公司第701研究所 | Bi-pass valve |
| CN202326651U (en) * | 2011-11-25 | 2012-07-11 | 玉环县东海石化设备制造厂 | Composite metal corrugated flange gasket |
| CN205190406U (en) * | 2015-12-14 | 2016-04-27 | 江西省唯欣高科精密五金有限公司 | Stack one -way throttle valve |
| CN206111810U (en) * | 2016-08-27 | 2017-04-19 | 慈溪博格曼密封材料有限公司 | Graphite composite sealing gasket |
| CN207095622U (en) * | 2017-06-30 | 2018-03-13 | 苍南自动化仪表厂 | Plunger type resistance orifice plate |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764332A (en) * | 1986-07-31 | 1988-08-16 | Westinghouse Electric Corp. | Sealing element and method for hydrotesting of nuclear reactor tubular elements |
| CN2294367Y (en) * | 1997-06-06 | 1998-10-14 | 虞滨 | Cock throttle device |
| US8025075B2 (en) * | 2008-04-04 | 2011-09-27 | Marshall Excelsior Company | Self-cleaning low emission bleeder valve type liquid level gauge |
-
2020
- 2020-05-14 CN CN202010406291.XA patent/CN111720648B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1411543A1 (en) * | 1985-05-22 | 1988-07-23 | Черкасское Научно-Производственное Объединение По Защите Металлов От Коррозии,Сварочному И Раскройно-Заготовительному Производству "Комплекс" | Swivel throttle |
| CN2289919Y (en) * | 1997-02-04 | 1998-09-02 | 中国航天工业总公司第701研究所 | Bi-pass valve |
| CN202326651U (en) * | 2011-11-25 | 2012-07-11 | 玉环县东海石化设备制造厂 | Composite metal corrugated flange gasket |
| CN205190406U (en) * | 2015-12-14 | 2016-04-27 | 江西省唯欣高科精密五金有限公司 | Stack one -way throttle valve |
| CN206111810U (en) * | 2016-08-27 | 2017-04-19 | 慈溪博格曼密封材料有限公司 | Graphite composite sealing gasket |
| CN207095622U (en) * | 2017-06-30 | 2018-03-13 | 苍南自动化仪表厂 | Plunger type resistance orifice plate |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
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| Publication number | Publication date |
|---|---|
| CN111720648A (en) | 2020-09-29 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Yongfeng Inventor after: Zhang Zhichao Inventor after: Pang Cheng Inventor after: Wu Peijun Inventor before: Yan Yongfeng Inventor before: Pang Cheng Inventor before: Wu Peijun |
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Effective date of registration: 20240319 Address after: 214400 No.1-3 Kailai Road, nanzha street, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: JIANGYIN THROTTLING DEVICE MANUFACTURER Co.,Ltd. Country or region after: Zhong Guo Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 214400 No.1-3 Kailai Road, nanzha street, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGYIN THROTTLING DEVICE MANUFACTURER Co.,Ltd. Country or region before: Zhong Guo |