CN202493895U - Novel vapor-liquid two-phase flow automatic regulating device - Google Patents
Novel vapor-liquid two-phase flow automatic regulating device Download PDFInfo
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- CN202493895U CN202493895U CN201220103299XU CN201220103299U CN202493895U CN 202493895 U CN202493895 U CN 202493895U CN 201220103299X U CN201220103299X U CN 201220103299XU CN 201220103299 U CN201220103299 U CN 201220103299U CN 202493895 U CN202493895 U CN 202493895U
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- liquid level
- liquid
- phase flow
- flow automatic
- automatic regulating
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 title abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000002209 hydrophobic effect Effects 0.000 claims description 28
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 208000037805 labour Diseases 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000012071 phase Substances 0.000 description 9
- 239000007791 liquid phase Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a novel vapor-liquid two-phase flow automatic regulating device which comprises a self-regulating liquid level controller. The self-regulating liquid level controller is connected with a device to be drained through a phase transition pipe and a drain pipeline and connected with a by-passage pipeline in a parallel mode, a by-passage drain valve is arranged on the by-passage pipeline, and the by-passage drain valve is an electrically operated valve; and a liquid level sensor is arranged on the device to be drained and connected with a control device, and the control device is connected with the electrically operated valve. The novel vapor-liquid two-phase flow automatic regulating device has the advantages that compared with original vapor-liquid two-phase flow automatic regulating devices, the vapor-liquid two-phase flow automatic regulating device has the added liquid level sensor so that labors are not required for judging a liquid level; the control device is used for judging the height of the liquid level and controlling the starting of the electrically operated valve so that the automatic control of a by-passage system is achieved, and workload is reduced; and according to the vapor-liquid two-phase flow automatic regulating device, good effects are achieved during actual operating of an electric power plant, and the safety of the operating of the electric power plant is greatly improved.
Description
Technical field
The utility model relates to the hydrophobic controlling device of low-pressure heater, relates in particular to the hydrophobic regulating system of a kind of effective raising steam trap connection Security.
Background technique
Hydrophobic is that steam descends and the water of condensation of generation in manifold pressure, temperature.Under the normal condition, low-pressure heater is regulated water level at low water level operation by STEAM TRAP automatically, hydrophobic should in time the discharging, otherwise not only steam heat in the absorption tube, influence flow of steam, serious will produce water hammer, causes serious consequence; If STEAM TRAP fault, full water can cause the efficiency of cycle to reduce, should open the hydrophobic door of bypass and discharge water to normal water level.
Stream-liquid two-phase flow automatic control tegulatingdevice principle is (being example with the low-pressure heater): hydrophobic by valve body inlet entering valve pocket, phase transition tube 2 is just gathered vapour phase, liquid phase signal direct admission valve chamber according to liquid level, with the throat of the particular design of flowing through after hydrophobic the mixing.When liquid level in the low-pressure heater 1 rose, the vapour phase signal reduced, and hydrophobic flow increases; When liquid level descended, the vapour phase signal increased, and reduced the effective flow area of throat, and hydrophobic flow reduces.Bypass drain valve 8 is formed bypath system with bypass duct 9, and when the water level in the low-pressure heater 1 rose above the warning line, manual unlocking bypass drain valve 8 guarantees that low-pressure heater 1 water level is lower than normal water level, and was as shown in Figure 1.But the liquid level in the low-pressure heater 1 needs manual work to read, and the unlatching of bypass drain valve 8 also needs manual the unlatching; Strengthened operator's workload; If it is untimely that bypass drain valve 8 is opened, low-pressure heater 1 hydrophobic rapid increase influences the normal operation of equipment.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned existing technology, a kind of simple in structure, safe and reliable novel stream-liquid two-phase flow automatic control tegulatingdevice being provided.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of novel stream-liquid two-phase flow automatic control tegulatingdevice; Comprise self-adjustment liquid level controller; Self-adjustment liquid level controller links to each other with the hydrophobic equipment of hydrophobic pipeline and need through phase transition tube; Self-adjustment liquid level controller also is parallel with bypass duct, and bypass duct is provided with the bypass drain valve, and said bypass drain valve is a mortor operated valve; Need hydrophobic equipment to be provided with liquid level sensor, liquid level sensor links to each other with control gear, and control gear links to each other with mortor operated valve.
The hydrophobic equipment of said need is low-pressure heater.
Said control gear is DCS.
When the hydrophobic water level in the hydrophobic equipment of need reached the warning high water level, liquid level sensor passed to control gear with signal, and mortor operated valve is opened under control gear control, and is hydrophobic through the bypass outflow, the normal operation of protection low-pressure heater.
The beneficial effect of the utility model is to compare with former stream-liquid two-phase flow automatic control tegulatingdevice: installed a liquid level sensor additional, exempted the process of artificial judgment liquid level; Judge the height of liquid level and control the unlatching of mortor operated valve through control gear, realize the automatic control of bypath system, alleviated workload.This structure obtains good effect in power plant's actual motion, greatly improved the Security of power plant's operation.
Description of drawings
Fig. 1 is former stream-liquid two-phase flow automatic control tegulatingdevice structural representation;
Fig. 2 is the utility model structural representation (low-pressure heater is an example).
1. low-pressure heaters wherein; 2. phase transition tube (signal tube); 3. steam valve; 4. main inlet control valve; 5. hydrophobic pipeline; 6. self-adjustment liquid level controller; 7. separating valve; 8. bypass drain valve, 9. bypass duct; 10. liquid level sensor; 11. mortor operated valve.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 2; A kind of novel stream-liquid two-phase flow automatic control tegulatingdevice comprises self-adjustment liquid level controller 6, and self-adjustment liquid level controller 6 links to each other with the hydrophobic equipment low-pressure heater 1 of hydrophobic pipeline 5 and need through the phase transition tube 2 (or being signal tube) of gathering vapour phase, liquid phase signal respectively; Phase transition tube 2 is provided with air valve 3; Hydrophobic pipeline 5 is provided with main inlet control valve 4, and the other end of self-adjustment liquid level controller 6 also is connected with hydrophobic pipeline, and this pipeline is provided with separating valve 7; Self-adjustment liquid level controller 6 also is parallel with bypass duct 9, and bypass duct 9 connects the two ends of main inlet control valve 4 and separating valve 7, and bypass duct 9 is provided with mortor operated valve 10; Low-pressure heater 1 is provided with liquid level sensor 10, and liquid level sensor 10 links to each other with DCS, and DCS links to each other with mortor operated valve 11, and judge the height of liquid level and control the unlatching of mortor operated valve 11 through DCS.
When hydrophobic water level reached the warning high water level, liquid level sensor 10 passed to DCS with signal, DCS control down mortor operated valve 11 open, hydrophobic through the bypass outflow, protect the normal operation of low-pressure heater 1.
Claims (3)
1. novel stream-liquid two-phase flow automatic control tegulatingdevice; Comprise self-adjustment liquid level controller; Self-adjustment liquid level controller links to each other with the hydrophobic equipment of hydrophobic pipeline and need through phase transition tube, and self-adjustment liquid level controller also is parallel with bypass duct, and bypass duct is provided with the bypass drain valve; It is characterized in that said bypass drain valve is a mortor operated valve; Need hydrophobic equipment to be provided with liquid level sensor, liquid level sensor links to each other with control gear, and control gear links to each other with mortor operated valve.
2. novel stream-liquid two-phase flow automatic control tegulatingdevice as claimed in claim 1 is characterized in that the hydrophobic equipment of said need is low-pressure heater.
3. novel stream-liquid two-phase flow automatic control tegulatingdevice as claimed in claim 1 is characterized in that said control gear is DCS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220103299XU CN202493895U (en) | 2012-03-19 | 2012-03-19 | Novel vapor-liquid two-phase flow automatic regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220103299XU CN202493895U (en) | 2012-03-19 | 2012-03-19 | Novel vapor-liquid two-phase flow automatic regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493895U true CN202493895U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220103299XU Expired - Fee Related CN202493895U (en) | 2012-03-19 | 2012-03-19 | Novel vapor-liquid two-phase flow automatic regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493895U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870059A (en) * | 2018-08-28 | 2018-11-23 | 陕西明特石油技术有限公司 | A kind of drain valve drain automatic conveying device |
| CN110002387A (en) * | 2019-04-09 | 2019-07-12 | 北京古点科技有限公司 | A kind of elimination air bubble apparatus and beverage dispenser |
| CN110257935A (en) * | 2019-07-10 | 2019-09-20 | 广东工业大学 | It is a kind of for the liquid storage of centrifugal spinning and the self-checking device of hydrojet |
-
2012
- 2012-03-19 CN CN201220103299XU patent/CN202493895U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870059A (en) * | 2018-08-28 | 2018-11-23 | 陕西明特石油技术有限公司 | A kind of drain valve drain automatic conveying device |
| CN110002387A (en) * | 2019-04-09 | 2019-07-12 | 北京古点科技有限公司 | A kind of elimination air bubble apparatus and beverage dispenser |
| CN110002387B (en) * | 2019-04-09 | 2024-04-02 | 北京古点科技有限公司 | Bubble eliminating device and beverage machine |
| CN110257935A (en) * | 2019-07-10 | 2019-09-20 | 广东工业大学 | It is a kind of for the liquid storage of centrifugal spinning and the self-checking device of hydrojet |
| CN110257935B (en) * | 2019-07-10 | 2022-02-15 | 广东工业大学 | Automatic liquid storage and spraying adjusting device for centrifugal spinning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20210319 |