CN203115486U - Air isolation device of drain tank of thermal power generation set - Google Patents
Air isolation device of drain tank of thermal power generation set Download PDFInfo
- Publication number
- CN203115486U CN203115486U CN 201320128017 CN201320128017U CN203115486U CN 203115486 U CN203115486 U CN 203115486U CN 201320128017 CN201320128017 CN 201320128017 CN 201320128017 U CN201320128017 U CN 201320128017U CN 203115486 U CN203115486 U CN 203115486U
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- CN
- China
- Prior art keywords
- drain
- drain tank
- air bag
- pressure
- water
- 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 - Fee Related
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Abstract
An air isolation device of a drain tank of a thermal power generation set comprises a high-temperature-resistant drain air bag, a T-shaped non-return plate, a drain pump, a pressure relay, an electromagnetic valve and an exhaust valve. At least one high-temperature-resistant drain air bag is located in the drain tank, the drain pump is located at an inlet of the drain tank, the pressure relay is connected with the electromagnetic valve and located at an outlet of the drain tank, and the exhaust valve is located above the drain tank. Nitrogen in an amount 1.5 times the capacity of the drain tank is filled in the high-temperature-resistant drain air bag. Before water flows into the high-temperature-resistant drain air bag, the high-temperature-resistant drain air bag will exhaust air in the drain tank, when the water flows into the high-temperature-resistant drain air bag, the drain pump provides pressure to eject the T-shaped non-return plate, so that the drained water is sent to the drain tank and water inflow is not stopped until the pressure of the drain pump is equal to water pressure of the inlet. The pressure relay is connected with a circuit under action of set pressure, the electromagnetic valve is electrified, and the drained water is automatically discharged by air bag pressure and water gravity. The device can effectively isolate the drained water from the air, the structure of a system is simple, operation is safe and reliable, and dynamic is needless for water discharge.
Description
Technical field
The utility model belongs to air insulated device field, particularly relates to a kind of thermal power generation unit drain tank air insulated device.
Background technique
Thermal power generation unit drain tank be used for to reclaim the water of condensation of various steam lines and gas utilization unit, hydrophobicly is pooled to drain tank through STEAM TRAP.Air in the drain tank can be dissolved into hydrophobic in, drain tank is caused corrosion influence, the burden of deoxygenation in the time of also can increasing hydrophobic recycling simultaneously.At present, thermal power generation unit drain tank does not have relevant air removing device, therefore need have a kind of device that the air in the drain tank is isolated.
Summary of the invention
The purpose of this utility model provides a kind of air insulated device that is applicable to the fired power generating unit drain tank at existing deficiency in the above-mentioned prior art just, this device can be effectively with air and hydrophobic isolation, reduce the dissolving of air in hydrophobic, guarantee the safe and reliable operation of draining system, reduce hydrophobic recycling cost.
The utility model adopts following technological scheme for achieving the above object: a kind of thermal power generation unit drain tank air insulated device comprises high temperature resistant hydrophobic air bag, T shape check plate, drainage pump, pressure relay and solenoid valve.Described have at least a high temperature resistant hydrophobic air bag that is filled with 1.5 times of drain tank volume nitrogen to be arranged in drain tank, the T shape check plate of described check plate support upper support links to each other with described drainage pump, be positioned at the drain tank entrance, described pressure relay links to each other with described solenoid valve, is positioned at the drain tank outlet.
The employing the beneficial effects of the utility model are.
1. the high temperature resistant hydrophobic air bag in the drain tank can reduce the content of hydrophobic middle dissolved air effectively with hydrophobic and air insulated, and this system architecture is fairly simple, and is safe and reliable to operation.
2. when not intaking, the T shape check plate of check plate support upper support can in time stop hydrophobic adverse current owing to be subjected to hydrophobic gravity in the drain tank and the pressure of high temperature resistant hydrophobic air bag, reduces air and enters in the drain tank.
3. during hydrophobic discharge, the pressure of hydrophobic gravity and high temperature resistant hydrophobic air bag can transfer out hydrophobic in the drain tank, and power additionally is not provided, and has power saving function.
Description of drawings
Accompanying drawing 1 is a kind of thermal power generation unit drain tank air insulated apparatus structure schematic representation.
Among the figure: 1, high temperature resistant hydrophobic air bag; 2, drain tank; 3, T shape check plate; 4, check plate support; 5, drainage pump; 6, pressure relay; 7, solenoid valve; 8, outlet valve.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
High temperature resistant hydrophobic air bag 1 of the present utility model refers to a kind of softness, deformable, that tightness is high, resistant to elevated temperatures hydrophobic air bag.Under original state, place at least one above-mentioned high temperature resistant hydrophobic air bag 1 in the drain tank 2, and be filled with the nitrogen of 1.5 times of drain tank volumes, original air in the drain tank 2 is discharged by outlet valve 8.
During water inlet, drainage pump 5 provides pressure, backs down T shape check plate 4, with the hydrophobic drain tank 2 of sending into.The hydrophobic drain tank 2 that enters, water level rises, and compresses the nitrogen in the hydrophobic air bag 1, and pressure rises in the hydrophobic air bag 1.When the pressure of drainage pump 5 equaled import hydraulic pressure (pressure of high temperature resistant hydrophobic air bag 1 and hydrophobic gravity sum), water intake was no longer intake.If be interrupted water inlet, the T shape check plate 3 of check plate support 4 upper supports can compress water intake owing to be subjected to pressure and the hydrophobic gravity of high temperature resistant hydrophobic air bag 1 in the drain tank 2, in time stops hydrophobic adverse current.
When water intake was no longer intake, pressure relay 6 can be connected circuit make solenoid valve 7 energisings, energising rear electromagnetic valve 7 standard-sized sheets, and pressure and the hydrophobic gravity of hydrophobic dependence is high temperature resistant hydrophobic air bag 1 are discharged automatically.
Claims (1)
1. thermal power generation unit drain tank air insulated device, comprise high temperature resistant hydrophobic air bag (1), T shape check plate (3), drainage pump (5), pressure relay (6), solenoid valve (7) and outlet valve (8), it is characterized in that: at least one is high temperature resistant, and hydrophobic air bag (1) is arranged in drain tank (2), the T shape check plate (3) of check plate support (4) upper support links to each other with drainage pump (5), be positioned at drain tank (2) entrance, pressure relay (6) links to each other with solenoid valve (7), be positioned at drain tank (2) outlet, outlet valve (8) is positioned at drain tank (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128017 CN203115486U (en) | 2013-03-20 | 2013-03-20 | Air isolation device of drain tank of thermal power generation set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128017 CN203115486U (en) | 2013-03-20 | 2013-03-20 | Air isolation device of drain tank of thermal power generation set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115486U true CN203115486U (en) | 2013-08-07 |
Family
ID=48895833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128017 Expired - Fee Related CN203115486U (en) | 2013-03-20 | 2013-03-20 | Air isolation device of drain tank of thermal power generation set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793113A (en) * | 2018-08-03 | 2020-02-14 | 三菱电机株式会社 | Dehumidifier |
-
2013
- 2013-03-20 CN CN 201320128017 patent/CN203115486U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793113A (en) * | 2018-08-03 | 2020-02-14 | 三菱电机株式会社 | Dehumidifier |
| CN110793113B (en) * | 2018-08-03 | 2021-11-16 | 三菱电机株式会社 | Dehumidifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140320 |