CN215216190U - Pipeline drainage system - Google Patents
Pipeline drainage system Download PDFInfo
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- CN215216190U CN215216190U CN202120789868.XU CN202120789868U CN215216190U CN 215216190 U CN215216190 U CN 215216190U CN 202120789868 U CN202120789868 U CN 202120789868U CN 215216190 U CN215216190 U CN 215216190U
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Abstract
The utility model relates to a drainage technical field discloses a pipeline drainage system, including hydrophobic collection pipe, atmospheric flash tank, water-sealed tank and condenser, the input port connection of hydrophobic collection pipe and atmospheric flash tank, the top of atmospheric flash tank is equipped with the blast pipe with external intercommunication, and the delivery outlet of atmospheric flash tank is connected with the drain pipe, and the drain pipe is connected with the top of water-sealed tank, is equipped with the drinking-water pipe in the water-sealed tank, and the drinking-water pipe extends the bottom of water-sealed tank, and the drinking-water pipe passes the top of water-sealed tank and is connected with the condenser. Adopt the utility model discloses a water seal tank makes the formation water seal in the drinking-water pipe with the atmospheric pressure difference of condenser, and condensation hydroenergy need not to use the booster pump through drinking-water pipe transport to the condenser simultaneously for whole drainage system is more simple, and the fault rate is low, and installation operation cost is low.
Description
Technical Field
The utility model relates to a drainage system technical field especially relates to a pipeline drainage system.
Background
At present, in a gas-steam combined cycle unit, due to the problem of installation height of each component, drainage cannot automatically flow to a condenser through gravity, so that a drainage flash tank for a pipeline needs to be arranged to receive drainage from a drainage header, and then the drainage flash tank is conveyed to the condenser after the drainage flash tank is cooled. The existing pipeline drainage system is controlled by the height of a drainage interface of a drainage flash tank, condensed water in the flash tank cannot flow to the condenser by gravity, a drainage booster pump needs to be arranged to boost and drain, and the inlet of the drainage booster pump is vacuum, so that the pump is difficult to select types, cavitation is easy to occur, frequent accidents occur in the actual operation of a power plant, the pipeline cannot drain normally, and the normal starting of a unit is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a simple structure need not to use booster pump's pipeline drainage system.
In order to realize the above-mentioned purpose, the utility model provides a pipeline drainage system, including drainage header, atmospheric flash tank, water-sealed tank and condenser, drainage header with the input port connection of atmospheric flash tank, the top of atmospheric flash tank is equipped with the blast pipe with external intercommunication, the delivery outlet of atmospheric flash tank is connected with the drain pipe, the drain pipe with the top of water-sealed tank is connected, be equipped with the drinking-water pipe in the water-sealed tank, the drinking-water pipe extends the bottom of water-sealed tank, the drinking-water pipe passes the top of water-sealed tank with the condenser is connected.
As the utility model discloses an optimal scheme, the delivery outlet of atmosphere formula flash vessel is connected with the blow off pipe, the blow off pipe is equipped with the blowoff valve.
As the utility model discloses an optimal scheme, the atmosphere formula flash tank is equipped with and is used for detecting the liquid level detection device of liquid level in the atmosphere formula flash tank, liquid level detection device with blowoff valve electric connection.
As the preferred proposal of the utility model, the drain pipe is provided with a drain valve.
As the preferred scheme of the utility model, the top of water-sealed tank is equipped with discharge valve and water injection valve respectively.
As the utility model discloses an optimal scheme, be equipped with the temperature reduction water pipe in the atmospheric flash tank, the temperature reduction water pipe is equipped with a plurality of shower heads.
As the preferred scheme of the utility model, the water sealed tank is buried underground.
The embodiment of the utility model provides a pipeline drainage system, compared with the prior art, its beneficial effect lies in: compared with a vacuum flash tank, the atmospheric flash tank has the advantages that the installation condition and requirement are reduced, and the installation is convenient; because the flash tank does not need to keep vacuum, the non-condensable gas in the drainage can be directly exhausted to the outside through the exhaust pipe; through the pressure difference of water seal tank and condenser, make the comdenstion water get into the drinking-water pipe and form the water seal, on the one hand can avoid the air to leak into in the condenser, on the other hand along with the increase of the interior comdenstion water of water seal tank, the condensation hydroenergy passes through the drinking-water pipe and carries to the condenser in, need not to use the booster pump for whole drainage system is simpler, and the fault rate is low, and installation operation cost is low.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1, a hydrophobic pipeline; 2. an atmospheric flash tank; 21. an exhaust pipe; 22. a liquid level detection device; 3. sealing the tank with water; 31. an exhaust valve; 32. a water injection valve; 4. a condenser; 5. a drain pipe; 51. a drain valve; 6. a water pumping pipe; 7. a blow-off pipe; 71. a blowoff valve; 8. a temperature-reducing water pipe.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, the utility model provides a preferred embodiment's a pipeline drainage system, including drainage header 1, atmospheric flash tank 2, water-sealed tank 3 and condenser 4, drainage header 1 and atmospheric flash tank 2's input port connection, atmospheric flash tank 2's top is equipped with the blast pipe 21 with external intercommunication, and atmospheric flash tank 2's delivery outlet is connected with drain pipe 5, and drain pipe 5 is connected with water-sealed tank 3's top, is equipped with drinking-water pipe 6 in the water-sealed tank 3, and drinking-water pipe 6 extends water-sealed tank 3's bottom, and drinking-water pipe 6 passes water-sealed tank 3's top and is connected with condenser 4.
The utility model discloses a working process does: the drainage collecting pipe 1 conveys drainage to an atmospheric flash tank 2 for flash cooling, wherein non-condensable gas is directly discharged to the outside through an exhaust pipe 21, condensed water formed by the drainage flash cooling is conveyed to a water seal tank through a drainage pipe 5, generally, an output port of the atmospheric flash tank 2 is higher than the water seal tank 3, so that the condensed water in the atmospheric flash tank 2 can naturally flow to the water seal tank 3, when the condenser 4 operates, the inside is negative pressure, and when the water seal tank 3 enters water, the condensed water is communicated with the outside through the atmospheric flash tank 2, namely, the inside of the water seal tank 3 is positive pressure, so that an air pressure difference is formed, the condensed water in the water seal tank 3 can be pumped into a water pumping pipe 6 until the condensed water in the water pumping pipe 6 is in a balanced state, so that the condensed water in the water pumping pipe 6 can automatically flow into the condenser 4 under the action of air pressure and water pressure along with the increase of the condensed water, therefore, the condensed water in the water seal tank 3 is conveyed into the condenser 4 under the condition of no booster pump.
The utility model uses the atmospheric flash tank 2, compared with the vacuum flash tank, the installation condition and requirement are reduced, and the installation is convenient; because the flash tank does not need to keep vacuum, the non-condensable gas in the drainage can be directly exhausted to the outside through the exhaust pipe 21; through the atmospheric pressure difference of atmospheric type flash vessel 2 and condenser 4, make the comdenstion water in the water seal tank 3 pumped to the drinking-water pipe 6 and form the water seal in, can avoid the air to leak in condenser 4 on the one hand, on the other hand along with the increase of the comdenstion water in the atmospheric type flash vessel 2, the condensation hydroenergy passes through drinking-water pipe 6 and carries to condenser 4 in, need not to use the booster pump for whole drainage system is more simple, and the fault rate is low, and no operation electric load, installation and construction and operating cost are all lower.
Illustratively, the delivery outlet of atmospheric flash vessel 2 is connected with blow off pipe 7, and blow off pipe 7 is equipped with blowoff valve 71, and when the hydrophobic water quality is unqualified or condenser 4 is unavailable, open blowoff valve 71, turn off drain pipe 5, make the comdenstion water in atmospheric flash vessel 2 discharge through blow off pipe 7, wait to satisfy the back shut-off valve 71 of meeting the requirements, communicate drain pipe 5, the comdenstion water flows in the water-sealed tank 3. Atmosphere formula flash vessel 2 is equipped with liquid level detection device 22 that is used for detecting the interior liquid level of atmosphere formula flash vessel 2, and liquid level detection device 22 and blowoff valve 71 electric connection, when liquid level detection device 22 detected the liquid level in the atmosphere formula flash vessel 2 and reached the upper limit setting value, then the comdenstion water in the feedback signal control atmosphere formula flash vessel 2 is discharged from blow off pipe 7, avoids controlling the liquid level in the atmosphere formula flash vessel 2 too high.
Illustratively, the drain pipe 5 is provided with a drain valve 51 for controlling the connection or disconnection of the drain pipe 5.
Illustratively, the top of the water sealed tank 3 is respectively provided with an exhaust valve 31 and a filling valve 32, and the filling valve 32 is used for initial filling of the water sealed tank 3 to form a water seal in the water pumping pipe 6 in advance.
Illustratively, a temperature-reducing water pipe 8 is arranged in the atmospheric flash tank 2, and the temperature-reducing water pipe 8 is provided with a plurality of spray headers for cooling the drained water entering the atmospheric flash tank 2.
Illustratively, the water-sealed tank 3 is buried underground, so that the output port of the atmospheric flash tank 2 is higher than the input port of the water-sealed tank 3, and the overall height of the whole system can be reduced, thereby facilitating installation and construction.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (7)
1. A pipeline drainage system which is characterized in that: including drainage collector, atmospheric flash tank, water-sealed tank and condenser, drainage collector with the input port connection of atmospheric flash tank, the top of atmospheric flash tank is equipped with the blast pipe with external intercommunication, the delivery outlet of atmospheric flash tank is connected with the drain pipe, the drain pipe with the top of water-sealed tank is connected, be equipped with the drinking-water pipe in the water-sealed tank, the drinking-water pipe extends the bottom of water-sealed tank, the drinking-water pipe passes the top of water-sealed tank with the condenser is connected.
2. The pipe drainage system of claim 1, wherein: the output port of the atmospheric flash tank is connected with a blow-off pipe, and the blow-off pipe is provided with a blow-off valve.
3. The pipe drainage system of claim 2, wherein: the atmospheric type flash tank is equipped with and is used for detecting the liquid level detection device of liquid level in the atmospheric type flash tank, liquid level detection device with blowoff valve electric connection.
4. The pipe drainage system of claim 1, wherein: the drain pipe is provided with a drain valve.
5. The pipe drainage system of claim 1, wherein: and the top of the water-sealed tank is respectively provided with an exhaust valve and a water injection valve.
6. The pipe drainage system of claim 1, wherein: a temperature reduction water pipe is arranged in the atmospheric flash tank and provided with a plurality of spray headers.
7. The pipe drainage system of claim 1, wherein: the water-sealed tank is buried underground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789868.XU CN215216190U (en) | 2021-04-16 | 2021-04-16 | Pipeline drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789868.XU CN215216190U (en) | 2021-04-16 | 2021-04-16 | Pipeline drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215216190U true CN215216190U (en) | 2021-12-17 |
Family
ID=79449485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120789868.XU Active CN215216190U (en) | 2021-04-16 | 2021-04-16 | Pipeline drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215216190U (en) |
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2021
- 2021-04-16 CN CN202120789868.XU patent/CN215216190U/en active Active
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