CN202442732U - Integrated throttling device - Google Patents
Integrated throttling device Download PDFInfo
- Publication number
- CN202442732U CN202442732U CN201120556766XU CN201120556766U CN202442732U CN 202442732 U CN202442732 U CN 202442732U CN 201120556766X U CN201120556766X U CN 201120556766XU CN 201120556766 U CN201120556766 U CN 201120556766U CN 202442732 U CN202442732 U CN 202442732U
- Authority
- CN
- China
- Prior art keywords
- restriction device
- downstream
- nozzle
- device body
- upper reaches
- 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.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses an integrated throttling device, comprising an upstream adapter (1), a throttling device body (2) and a downstream adapter (7). The throttling device body is connected with the an upstream adapter and the downstream adapter by welding; the bore (8) of the throttling device body is provided with a throttling nozzle (6); and two sides of the throttling nozzle (6) are respectively provided with an upstream pressure taking nozzle (3) and a downstream pressure taking nozzle (4), wherein the upstream pressure taking nozzle (3) is communicated with the downstream pressure taking nozzle (4) through an annular chamber (5) and the bore (8). According to the integrated throttling device, the structure is simple, the measure reliability is high, and simultaneously, multi-channel flow measure can be realized, and engineering construction cost is reduced.
Description
Technical field
The utility model belongs to the thermal process field of measuring technique, is specifically related to a kind of integrated restriction device.
Background technology
In nuclear facilities design-and-builds such as nuclear power, research reactor; For avoiding taking place because of coolant loss causes accident; Need measure the coolant flow in the nuclear facilities; Make the operations staff in time learn coolant flow, take the necessary control measure according to operation restriction and condition regulation, with the security of operation of assurance nuclear facilities and the safety of surrounding enviroment.Be the dependable flow measuring reliability, the coolant system flow often adopts nuclear safe level throttle type flow measurement mode, and need adopt hyperchannel simultaneously is three-channel redundant measurement at least.
For coolant flow is carried out the multi-channel redundant flow measurement; Traditional implementation is on restriction device, to be equipped with one group of master's pressure to connect mouth; Connect in main pressure and to weld three pressure pipes on the mouth more respectively and carry out the triple channel pressure; Shortcoming is the measurement result poor reliability, will influence whole triple channel flow measurement if main pressure mouth stops up.
The utility model content
The utility model provides a kind of restriction device according to the problem that such scheme exists, and this apparatus structure is simple, reliable measurement property is high, realize multi-channel flow measuring simultaneously and the engineering-built cost is reduced.
In order to address the above problem, the utility model is realized through following technical scheme:
Integrated restriction device, this device comprise that (1), restriction device body (2) are taken in the upper reaches, (7) are taken in downstream.Wherein the front end of restriction device body (2) is connected with upper reaches adapters (1) through the mode of welding and seals; The rear end of restriction device body (2) is connected with downstream adapters (7) through the mode of welding and seals; (1) is taken at the upper reaches, restriction device body (2) is taken over (7) with downstream and had identical endoporus (8); The endoporus place of restriction device body (2) is provided with throttle nozzle (6), and the circular arc that is shaped as of throttle nozzle (6) shrinks shape; Be equipped with upper reaches pressure in the both sides of throttle nozzle (6) respectively and connect mouth (3) and downstream pressure nozzle (4), its middle and upper reaches pressure nozzle (3) and downstream pressure nozzle (4) communicate with endoporus (8) through ring casing (5).Key is, can connect mouth in above the horizon 15 ° or 15 ° of many groups pressures that except that vertical direction, evenly distribute below the horizontal line of restriction device, to realize multi-channel gas or liquid flow measurement.
During use, fluid is taken over from the upper reaches and is flowed to the throttle nozzle of flowing through when downstream are taken over, thereby forms local contraction, flow velocity is increased and the static pressure reduction, so before and after throttling, form pressure reduction.15 ° of many groups pressures that except that vertical direction, evenly distribute connect mouth below the restriction device horizontal line, prevent when can avoid solid sediment to stop up connecting pipe that bubble from getting into connecting pipe, to realize the liquid multi-channel flow measuring.15 ° of many groups pressures that except that vertical direction, evenly distribute above the horizon at restriction device connect mouth, can avoid condensed fluid to stop up connecting pipe, to realize the accurate measurement of gas multichannel flow.
The beneficial effect that the restriction device that adopts the utility model to provide is realized is: the structure of (1) restriction device is comparatively simple, and the distribution that three groups of pressures connect mouth can realize in process; (2) reliable measurement property is high.Three groups of pressures connect mouth respectively fluid flow measure, reduced because of pressure connects the possibility that mouth stops up influence flow measurement, make the reliability raising of flow measurement; (3) save cost.This device can be realized the multi-channel redundant measurement simultaneously, can save the technological process pipeline to reach the purpose of saving the engineering-built cost.
Description of drawings
The integrated restriction device synoptic diagram of Fig. 1;
The adapter of 1 upper reaches, 2 restriction device bodies, 3 upper reaches pressures connect mouth, 4 downstream pressures connect mouth, 5 ring casings, 6 throttle nozzles, the adapter of 7 downstream, 8 endoporus;
Pressure connects the mouth distribution schematic diagram in the flow measurement of Fig. 2 triple channel.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model is done further elaboration.
Integrated restriction device, this device comprise that (1), restriction device body (2) are taken in the upper reaches, (7) are taken in downstream.Wherein the front end of restriction device body (2) is connected with upper reaches adapters (1) through the mode of welding and seals; The rear end of restriction device body (2) is connected with downstream adapters (7) through the mode of welding and seals; (1) is taken at the upper reaches, restriction device body (2) is taken over (7) with downstream and had identical endoporus (8); The endoporus place of restriction device body (2) is provided with throttle nozzle (6), and the circular arc that is shaped as of throttle nozzle (6) shrinks shape; Be equipped with upper reaches pressure in the both sides of throttle nozzle (6) respectively and connect mouth (3) and downstream pressure nozzle (4), its middle and upper reaches pressure nozzle (3) and downstream pressure nozzle (4) communicate with endoporus (8) through ring casing (5).Key is, can connect mouth in above the horizon 15 ° or 15 ° of many groups pressures that except that vertical direction, evenly distribute below the horizontal line of restriction device, to realize multi-channel gas or liquid flow measurement.
Embodiment 1
The flow measurement mode commonly used at the research reactor is the triple channel flow measurement; Fig. 2 connects the mouth distribution schematic diagram for pressure in the triple channel flow measurement; Owing to be synoptic diagram, only provided three upper reaches pressure nozzle synoptic diagram among the figure, wherein about two pressure nozzles all be positioned at the position of following 15 ° of restriction device center line; Middle pressure nozzle is positioned at the position in 15 ° in restriction device perpendicular line left side, and every group of upstream and downstream pressure connects between the mouth and will evenly distribute.
During use, fluid is taken over from the upper reaches and is flowed to the throttle nozzle of flowing through when downstream are taken over, thereby forms local contraction, flow velocity is increased and the static pressure reduction, so before and after throttling, form pressure reduction.15 ° of many groups pressures that except that vertical direction, evenly distribute connect mouth below the restriction device horizontal line, prevent when can avoid solid sediment to stop up connecting pipe that bubble from getting into connecting pipe, to realize the liquid multi-channel flow measuring.15 ° of many groups pressures that except that vertical direction, evenly distribute above the horizon at restriction device connect mouth, can avoid condensed fluid to stop up connecting pipe, to realize the accurate measurement of gas multichannel flow.
Claims (1)
1. integrated restriction device, this device comprise that (1), restriction device body (2) are taken in the upper reaches, (7) are taken in downstream; Wherein the front end of restriction device body (2) is connected with upper reaches adapters (1) through the mode of welding and seals; The rear end of restriction device body (2) is connected with downstream adapters (7) through the mode of welding and seals; (1) is taken at the upper reaches, restriction device body (2) is taken over (7) with downstream and had identical endoporus (8); The endoporus place of restriction device body (2) is provided with throttle nozzle (6), and the circular arc that is shaped as of throttle nozzle (6) shrinks shape; Be equipped with upper reaches pressure in the both sides of throttle nozzle (6) respectively and connect mouth (3) and downstream pressure nozzle (4), its middle and upper reaches pressure nozzle (3) and downstream pressure nozzle (4) communicate with endoporus (8) through ring casing (5); It is characterized in that, can connect mouth in above the horizon 15 ° or 15 ° of many groups pressures that except that vertical direction, evenly distribute below the horizontal line of restriction device, to realize multi-channel gas or liquid flow measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120556766XU CN202442732U (en) | 2011-12-28 | 2011-12-28 | Integrated throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120556766XU CN202442732U (en) | 2011-12-28 | 2011-12-28 | Integrated throttling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202442732U true CN202442732U (en) | 2012-09-19 |
Family
ID=46824176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120556766XU Expired - Lifetime CN202442732U (en) | 2011-12-28 | 2011-12-28 | Integrated throttling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202442732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121887A (en) * | 2020-03-17 | 2020-05-08 | 艾加流体控制(上海)有限公司 | Circular wedge flowmeter |
| CN112555556A (en) * | 2020-10-27 | 2021-03-26 | 中国原子能科学研究院 | Inverted tooth type throttling element |
-
2011
- 2011-12-28 CN CN201120556766XU patent/CN202442732U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121887A (en) * | 2020-03-17 | 2020-05-08 | 艾加流体控制(上海)有限公司 | Circular wedge flowmeter |
| CN112555556A (en) * | 2020-10-27 | 2021-03-26 | 中国原子能科学研究院 | Inverted tooth type throttling element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |