CN204829865U - Active protection device of steam cooling ware system non - - Google Patents
Active protection device of steam cooling ware system non - Download PDFInfo
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- CN204829865U CN204829865U CN201520545774.2U CN201520545774U CN204829865U CN 204829865 U CN204829865 U CN 204829865U CN 201520545774 U CN201520545774 U CN 201520545774U CN 204829865 U CN204829865 U CN 204829865U
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Abstract
The utility model discloses an active protection device of steam cooling ware system non - belongs to power station auxiliary engine field, including forward type steam cooling ware and the high pressure feed water heater of subordinate, its characterized in that: forward type steam cooling ware arranges in the high pressure feed water heater of subordinate top that forward type steam cooling ware bottom sets up a hydrophobic export pipeline, and this pipeline adopts the U -shaped communicating pipe form access high pressure feed water heater of subordinate bottom, and forward type steam cooling ware makes the high pressure feed water heater of subordinate bottom condensate water form the water seal in communicating pipe at this U -shaped rather than subordinate's high pressure feed water heater difference in height. The utility model discloses simplify forward type steam cooling ware drainage system and arrange that the dear hydrophobic governing valve of cancellation cost is realized hydrophobous non - and is actively discharged, can be safe, reliable avoid booster in the steam cooling ware, leak the hydrophobic steam turbine that backflows that causes, protection system safe operation.
Description
Technical field
The utility model belongs to power plant auxiliary machine field, particularly relates to steam condenser.
Background technology
Forward type steam condenser is run without water level, has a small amount of condensate water to produce, need to carry out hydrophobic normal discharge in Cold Start; There is when tube leak or booster a large amount of feedwater to enter shell-side, for avoiding causing steam turbine to intake, needing to carry out hydrophobic dump and equipment blocking maintenance.Usual employing arranges drain regulating valve device drain discharge.
The deficiency that prior art exists: owing to steaming cold steam inside temperature high (usually more than 500 DEG C), the drain regulating valve type selecting difficulty arranged, Systematical control requires complicated, and cost of investment is high, and control valve longtime running also exists the faults such as leakage and bite simultaneously.
Utility model content
The purpose of this utility model is: propose a kind of Steam Cooler System passive resistance protection device; simplify forward type steam condenser draining system to arrange; cancel the drain regulating valve of cost intensive; realize hydrophobic non-active discharge; safe and reliablely can avoid booster in steam condenser, leak the hydrophobic steam turbine that backflows caused, protection system safe operation.
The utility model object is realized by following technical proposals:
A kind of Steam Cooler System passive resistance protection device; comprise forward type steam condenser and subordinate's high-pressure heater thereof; described forward type steam condenser is arranged in above subordinate's high-pressure heater; one hydrophobic outlet conduit is set bottom forward type steam condenser; this pipeline adopts bottom U-shaped communicating pipe form access subordinate high-pressure heater, and forward type steam condenser and its subordinate's high-pressure heater difference in height make condensate water bottom subordinate's high-pressure heater form water seal within this U-shaped communicating pipe.
As selection, described hydrophobic outlet conduit is provided with liquid level detector, and the liquid level detector on described hydrophobic outlet conduit is electrically connected with warning device and controls it and report to the police.
As selection, described forward type steam condenser is provided with liquid level detector, liquid level detector on described forward type steam condenser is electrically connected with warning device and controls it and report to the police, and the liquid level detector on described forward type steam condenser is also electrically connected with the bypass valve of forward type steam condenser and subordinate's high-pressure heater and controls its break-make.
As further selection, described liquid level detector is liquid-level switch.
Select further as another, described liquid level detector is remote level indicator.
Select further as another, described liquid level detector is magnetostriction liquidometer.
Select further as another, the liquid level detector on described forward type steam condenser arranges at least 3.
The main scheme of aforementioned the utility model and each further selection scheme thereof can independent assortment to form multiple scheme; be the utility model can adopt and claimed scheme: as the utility model; each selection can select any combination with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the utility model scheme; be the claimed technical scheme of the utility model, do not do exhaustive at this.
The beneficial effects of the utility model: the utility model is after steam condenser drain pipe is drawn from bottom, be arranged to U-shaped Communicating device access next stage heater base, utilize the hydrophobic formation water seal arrangement of next stage heater base, avoid steam by-pass flow in steam condenser to enter heater.When producing hydrophobic in steam condenser, be discharged into next stage heater under gravity by U-shaped Communicating device:
1, this device eliminates the high drain regulating valve of cost and control system, enormously simplify Systematical control and cost of investment, and steam condenser drain regulating valve single price is approximately 30,000 U.S. dollars;
2, improve reliability: the fault that drain regulating valve emerged in operation can be avoided, also save the operating cost of system maintenance.
Accompanying drawing explanation
Fig. 1 is the device schematic flow sheet of the utility model embodiment.
Detailed description of the invention
Following non-limiting examples is for illustration of the utility model.
Shown in figure 1, a kind of Steam Cooler System passive resistance protection device, comprise forward type steam condenser 1 and subordinate's high-pressure heater 2 thereof, forward type steam condenser 1 is arranged in above subordinate's high-pressure heater 2, one hydrophobic outlet conduit 3 is set bottom forward type steam condenser 1, this pipeline adopts bottom U-shaped communicating pipe 4 form access subordinate high-pressure heater 2, and forward type steam condenser 1 and its subordinate's high-pressure heater 2 difference in height make condensate water bottom subordinate's high-pressure heater 2 form water seal within this U-shaped communicating pipe 4, hydrophobic outlet conduit 3 and forward type steam condenser 1 are also respectively equipped with liquid level detector 5, liquid level detector 5 on hydrophobic outlet conduit 3 is electrically connected with warning device and controls it and report to the police, the bypass valve of the liquid level detector 5 on forward type steam condenser 1 and forward type steam condenser 1 and subordinate's high-pressure heater 2 is electrically connected and controls its break-make.As selection, liquid level detector 5 is liquid-level switch, magnetostriction liquidometer or remote level indicator, and the liquid level detector 5 on forward type steam condenser 1 arranges at least 3.
The course of work is: (as shown in Figure 1) forward type steam condenser 1 is arranged in above subordinate's high-pressure heater 2, forward type steam condenser 1 outlet at bottom A point arranges a hydrophobic outlet conduit 3, adopts bottom U-shaped communicating pipe 4 form access subordinate high-pressure heater 2.Have condensate water bottom subordinate's high-pressure heater 2, when normally running, condensate water flows in U-shaped communicating pipe 4 and forms water seal, effectively isolates steam by-pass, prevents forward type steam condenser 1 steam from entering subordinate's high-pressure heater 2 by hydrophobic outlet conduit 3.Unit a small amount of condensate water that forward type steam condenser 1 inside is formed when cold start-up, or under the accident conditionses such as heat exchanger tube leakage, booster, hydrophobicly be discharged into subordinate's high-pressure heater 2 by Action of Gravity Field, enter oxygen-eliminating device or drain tank by the draining system of subordinate's high-pressure heater 2.Because forward type steam condenser 1 pressure P 1 and subordinate's high-pressure heater 2 pressure P 2 exist pressure reduction △ P (the flow resistance △ P=P1-P2 in jet chimney 6), adjustment forward type steam condenser 1 and its subordinate's high-pressure heater 2 difference in height, make subordinate's high-pressure heater 2 bottom condensate water liquid level (B point) height H 2, H2=H1+ △ H (requiring that in accompanying drawing 1, C point liquid level, higher than caliber bottom U-shaped communicating pipe 4, is guaranteed to form effective water seal) when U-shaped communicating pipe 4 arranges.
Further, after preventing forward type steam condenser 1 booster, blocked drain causes and steams cold full water, hydrophobic outlet conduit 3 is installed a liquid-level switch (or magnetostriction liquidometer, remote level indicator) and carries out first warning.Forward type steam condenser 1 body arranges many liquid-level switches (or magnetostriction liquidometer, remote level indicator), this alarm point by 3 get 2 or similar fashion carry out second warning and send the signal of equipment blocking, bypass valve action, cold and heater device is steamed in excision, prevents steam turbine from intaking.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a Steam Cooler System passive resistance protection device; comprise forward type steam condenser and subordinate's high-pressure heater thereof; it is characterized in that: described forward type steam condenser is arranged in above subordinate's high-pressure heater; one hydrophobic outlet conduit is set bottom forward type steam condenser; this pipeline adopts bottom U-shaped communicating pipe form access subordinate high-pressure heater, and forward type steam condenser and its subordinate's high-pressure heater difference in height make condensate water bottom subordinate's high-pressure heater form water seal within this U-shaped communicating pipe.
2. Steam Cooler System passive resistance protection device as claimed in claim 1, is characterized in that: described hydrophobic outlet conduit is provided with liquid level detector, and the liquid level detector on described hydrophobic outlet conduit is electrically connected with warning device and controls it and report to the police.
3. Steam Cooler System passive resistance protection device as claimed in claim 1; it is characterized in that: described forward type steam condenser is provided with liquid level detector; liquid level detector on described forward type steam condenser is electrically connected with warning device and controls it and report to the police, and the liquid level detector on described forward type steam condenser is also electrically connected with the bypass valve of forward type steam condenser and subordinate's high-pressure heater and controls its break-make.
4. Steam Cooler System passive resistance protection device as claimed in claim 2 or claim 3, is characterized in that: described liquid level detector is liquid-level switch.
5. Steam Cooler System passive resistance protection device as claimed in claim 2 or claim 3, is characterized in that: described liquid level detector is remote level indicator.
6. Steam Cooler System passive resistance protection device as claimed in claim 2 or claim 3, is characterized in that: described liquid level detector is magnetostriction liquidometer.
7. Steam Cooler System passive resistance protection device as claimed in claim 3, is characterized in that: the liquid level detector on described forward type steam condenser arranges at least 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545774.2U CN204829865U (en) | 2015-07-24 | 2015-07-24 | Active protection device of steam cooling ware system non - |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520545774.2U CN204829865U (en) | 2015-07-24 | 2015-07-24 | Active protection device of steam cooling ware system non - |
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| Publication Number | Publication Date |
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| CN204829865U true CN204829865U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520545774.2U Active CN204829865U (en) | 2015-07-24 | 2015-07-24 | Active protection device of steam cooling ware system non - |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322356A (en) * | 2016-09-29 | 2017-01-11 | 东方电气集团东方锅炉股份有限公司 | Seal end plate water seal structure of draining cooling section of horizontal U-shaped-pipe type feed water heater |
-
2015
- 2015-07-24 CN CN201520545774.2U patent/CN204829865U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322356A (en) * | 2016-09-29 | 2017-01-11 | 东方电气集团东方锅炉股份有限公司 | Seal end plate water seal structure of draining cooling section of horizontal U-shaped-pipe type feed water heater |
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