CN212177232U - Multistage water seal for saturated steam power generation vacuum system - Google Patents
Multistage water seal for saturated steam power generation vacuum system Download PDFInfo
- Publication number
- CN212177232U CN212177232U CN202021012480.0U CN202021012480U CN212177232U CN 212177232 U CN212177232 U CN 212177232U CN 202021012480 U CN202021012480 U CN 202021012480U CN 212177232 U CN212177232 U CN 212177232U
- Authority
- CN
- China
- Prior art keywords
- pipe
- water
- seal
- water seal
- vacuum system
- 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.)
- Active
Links
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a multistage water seal for saturated steam power generation vacuum system belongs to metallurgical industry saturated steam power generation vacuum system technical field. The technical scheme is as follows: the water seal device comprises a plurality of water seal pipes which are arranged in parallel in a vertical state, wherein the bottom of each water seal pipe is provided with a water outlet (12), and the top of each water seal pipe is provided with an air outlet (13); according to the flowing direction of water, the first drainage pipe is also provided with a water inlet pipe (14) and a water replenishing port (G), the upper end of the water inlet pipe (14) is provided with a drainage inlet (E), and the lower end of the water inlet pipe (14) extends to the bottom of the first drainage pipe from the top of the first drainage pipe; two adjacent water seal pipes are communicated through a connecting pipe (11); the upper part of the last drain pipe is also provided with a drain outlet (F). The utility model has the advantages that: the water seal effect is good, and the phenomenon that the steam-gas mixture in the shaft seal heater is sucked into the condenser to influence the generating efficiency of the unit can be avoided.
Description
Technical Field
The utility model relates to a multistage water seal for saturated steam power generation vacuum system belongs to metallurgical industry saturated steam power generation vacuum system technical field.
Background
In the production processes of steel making, shaft furnaces and the like in the metallurgical industry, generated saturated steam is collected by utilizing pipelines, and then matched saturated steam waste heat is formed according to the pressure and the temperature of a gas source to generate power.
The steam turbine in the saturated steam generating set usually adopts an internal leakage type shaft seal system, and a shaft seal heater is generally arranged and mainly used for pumping a steam-gas mixture of a steam seal system of the steam turbine so as to prevent steam from leaking into a steam engine room and an oil system from an end steam seal to pollute the environment and destroy the oil quality. The steam-gas mixture enters the shaft seal heater to be cooled into water, the residual gas without condensation is discharged into the atmosphere through a vacuum pump, and the condensation water is introduced into a condenser through a pipeline and a water seal. The water seal effect of the existing water seal is poor, so that a steam-gas mixture in the shaft seal heater is sucked into the condenser, and the generating efficiency of a unit is influenced.
Disclosure of Invention
The utility model aims at providing a multistage water seal for saturated steam power generation vacuum system, the water seal is effectual, can avoid the inside vapour-gas mixture of bearing seal heater to be inhaled the condenser in, influences unit generating efficiency, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
a multi-stage water seal for a saturated steam power generation vacuum system comprises a plurality of water seal pipes which are in a vertical state and are arranged in parallel, wherein two ends of each water seal pipe are in a closed state, a water outlet is formed in the bottom of each water seal pipe, and an air outlet is formed in the top of each water seal pipe; according to the flowing direction of water, the first drainage pipe is also provided with a water inlet pipe and a water replenishing port, the upper end of the water inlet pipe is a drainage inlet, the lower end of the water inlet pipe extends to the bottom of the first drainage pipe from the top of the first drainage pipe, and the water replenishing port is arranged at the upper part of the first drainage pipe; two adjacent water seal pipes are communicated through a connecting pipe, one end of the connecting pipe is connected to the upper part of the previous water seal pipe, and the other end of the connecting pipe extends to the bottom of the next water seal pipe from the upper part of the next water seal pipe; the upper part of the last drain pipe is also provided with a drain outlet.
The connecting pipe between two adjacent water seal pipes is L-shaped, one end of the connecting pipe is connected to the upper part of the previous water seal pipe, and the other end of the connecting pipe is arranged at the bottom of the next water seal pipe.
The multistage water seal for the saturated steam power generation vacuum system also comprises a shaft seal heater, a condenser, a vacuum pump, a condenser vacuum system pipeline, a shaft seal heater vacuum system pipeline, a drain pipeline and a shaft seal steam discharge pipeline; the drainage outlet of the shaft seal heater is connected with the drainage inlet of the multistage water seal through a drainage pipeline, the drainage outlet of the multistage water seal is communicated with a condenser, the shaft seal heater and the condenser are respectively connected with a vacuum pump through a condenser vacuum system pipeline and a shaft seal heater vacuum system pipeline, and corresponding regulating valves are respectively arranged on the condenser vacuum system pipeline, the shaft seal heater vacuum system pipeline and the drainage pipeline; the shaft seal heater is connected with a steam seal of the saturated steam power generation steam turbine through a shaft seal steam discharge pipeline.
The utility model has the advantages that: the water seal effect is good, and the phenomenon that the steam-gas mixture in the shaft seal heater is sucked into the condenser to influence the generating efficiency of the unit can be avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention in use;
in the figure: adjusting valve 1, condenser vacuum system pipeline 2, bearing seal heater air system pipeline 3, drain pipe 4, bearing seal steam release pipeline 5, vacuum system valve 6, adjusting valve two 7, bearing seal heater A, multistage water seal B (the utility model discloses), condenser C, vacuum pump D, hydrophobic entry E, hydrophobic export F, moisturizing mouth G, water seal pipe 10, connecting pipe 11, outlet 12, gas vent 13, inlet tube 14.
Detailed Description
The invention is further illustrated by way of example in the following with reference to the accompanying drawings.
Referring to the attached drawings 1-2, the multistage water seal for the saturated steam power generation vacuum system comprises a plurality of water seal pipes which are in a vertical state and are arranged in parallel, two ends of each water seal pipe are in a closed state, a water outlet 12 is formed in the bottom of each water seal pipe, and an exhaust port 13 is formed in the top of each water seal pipe; according to the flowing direction of water, the first drainage pipe is also provided with a water inlet pipe 14 and a water replenishing port G, the upper end of the water inlet pipe 14 is provided with a drainage inlet E, the lower end of the water inlet pipe 14 extends from the top of the first drainage pipe to the bottom of the first drainage pipe, and the water replenishing port G is arranged at the upper part of the first drainage pipe; two adjacent water seal pipes are communicated through a connecting pipe 11, one end of the connecting pipe 11 is connected to the upper part of the previous water seal pipe, and the other end of the connecting pipe 11 extends from the upper part of the next water seal pipe to the bottom of the next water seal pipe; the upper part of the last drain pipe is also provided with a drain outlet F.
In this embodiment, referring to fig. 1, the multistage water seal B includes five water seal pipes arranged in parallel in a vertical state, a water outlet 12 is disposed at the bottom of each water seal pipe, and an air outlet 13 is disposed at the top of each water seal pipe; the first drainage pipe is also provided with a water inlet pipe 14 and a water replenishing port G, the upper end of the water inlet pipe 14 is a drainage inlet E, the lower end of the water inlet pipe 14 extends from the top of the first drainage pipe to the bottom of the first drainage pipe, and the water replenishing port G is arranged at the upper part of the first drainage pipe; two adjacent water seal pipes are communicated through a connecting pipe 11, the connecting pipe 11 is L-shaped, one end of the connecting pipe 11 is connected to the upper part of the previous water seal pipe, and the other end of the connecting pipe 11 is arranged at the bottom of the next water seal pipe; the upper part of the fifth drain pipe is also provided with a drain outlet F.
Referring to the attached figure 2, the multistage water seal for the saturated steam power generation vacuum system further comprises a shaft seal heater a, a condenser C, a vacuum pump D, a condenser vacuum system pipeline 2, a shaft seal heater vacuum system pipeline 3, a drain pipeline 4 and a shaft seal steam discharge pipeline 5, a drain outlet of the shaft seal heater a is connected with a drain inlet E of the multistage water seal through the drain pipeline 4, a drain outlet F of the multistage water seal is communicated with the condenser C, the shaft seal heater a and the condenser C are respectively connected with the vacuum pump D through the condenser vacuum system pipeline 2 and the shaft seal heater vacuum system pipeline 3, and the condenser vacuum system pipeline 2, the shaft seal heater vacuum system pipeline 3 and the drain pipeline 4 are respectively provided with a vacuum system valve 6, a regulating valve one 1 and a regulating valve two 7; the shaft seal heater A is connected with a steam seal of the saturated steam power generation steam turbine through a shaft seal steam discharge pipeline 5.
The shaft seal heater A, the condenser C and the vacuum pump D are common equipment in the technical field, the vacuum pump D is connected in parallel, one vacuum pump is used for preparing the other vacuum pump, and the specific model of the shaft seal heater A is LQ-40.
The working principle is as follows:
(1) when the unit normally operates, shaft seal heater A's effect makes the inside vapour gas mixture who forms little negative pressure in with the shaft seal of self inhale, and after steam in the shaft seal heater passed through the heat exchange and is condensed into water, its drainage passed through multistage water seal B (the utility model discloses) continuous overflow to condenser ensures that the water in the multistage water seal is in full water state for a long time, avoids leaking the vacuum.
(2) By controlling the opening of the regulating valve and regulating the negative pressure in the shaft seal heater A, the problems of unsmooth steam supply and drainage of a steam seal behind a steam turbine in a generator set can be avoided.
Claims (3)
1. A multistage water seal for saturated steam power generation vacuum system which characterized in that: the multistage water seal comprises a plurality of water seal pipes which are arranged in parallel in a vertical state, two ends of each water seal pipe are in a closed state, a water outlet (12) is arranged at the bottom of each water seal pipe, and an exhaust port (13) is arranged at the top of each water seal pipe; according to the flowing direction of water, the first drainage pipe is also provided with a water inlet pipe (14) and a water replenishing port (G), the upper end of the water inlet pipe (14) is provided with a drainage inlet (E), the lower end of the water inlet pipe (14) extends to the bottom of the first drainage pipe from the top of the first drainage pipe, and the water replenishing port (G) is arranged at the upper part of the first drainage pipe; two adjacent water seal pipes are communicated through a connecting pipe (11), one end of the connecting pipe (11) is connected to the upper part of the previous water seal pipe, and the other end of the connecting pipe (11) extends to the bottom of the next water seal pipe from the upper part of the next water seal pipe; the upper part of the last drain pipe is also provided with a drain outlet (F).
2. The multistage hydro seal for a saturated steam power generation vacuum system of claim 1, wherein: connecting pipe (11) between two adjacent water seal pipes are the L type, and the upper portion of a preceding water seal pipe is connected to the one end of connecting pipe (11), and the other end of connecting pipe (11) sets up the bottom at a back water seal pipe.
3. The multistage hydro seal for a saturated steam power generation vacuum system according to claim 1 or 2, wherein: the steam condenser comprises a shaft seal heater (A), a condenser (C), a vacuum pump (D), a condenser vacuum system pipeline (2), a shaft seal heater vacuum system pipeline (3), a drain pipeline (4) and a shaft seal steam discharge pipeline (5); a drainage outlet of the shaft seal heater (A) is connected with a drainage inlet (E) of the multistage water seal through a drainage pipeline (4), a drainage outlet (F) of the multistage water seal is communicated with a condenser (C), the shaft seal heater (A) and the condenser (C) are respectively connected with a vacuum pump (D) through a condenser vacuum system pipeline (2) and a shaft seal heater vacuum system pipeline (3), and corresponding regulating valves are respectively arranged on the condenser vacuum system pipeline (2), the shaft seal heater vacuum system pipeline (3) and the drainage pipeline (4); the shaft seal heater (A) is connected with a steam seal of a saturated steam power generation steam turbine through a shaft seal steam discharge pipeline (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012480.0U CN212177232U (en) | 2020-06-05 | 2020-06-05 | Multistage water seal for saturated steam power generation vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012480.0U CN212177232U (en) | 2020-06-05 | 2020-06-05 | Multistage water seal for saturated steam power generation vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177232U true CN212177232U (en) | 2020-12-18 |
Family
ID=73788027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021012480.0U Active CN212177232U (en) | 2020-06-05 | 2020-06-05 | Multistage water seal for saturated steam power generation vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177232U (en) |
-
2020
- 2020-06-05 CN CN202021012480.0U patent/CN212177232U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203848705U (en) | Exhausted steam recycling system | |
| CN203420744U (en) | Shaft seal heater | |
| CN214247439U (en) | Novel on-spot exhaust steam of condensing steam turbine unit is hydrophobic to be synthesized and is retrieved device | |
| CN212177232U (en) | Multistage water seal for saturated steam power generation vacuum system | |
| CN109237460A (en) | A kind of recycle device of oxygen-eliminating device waste steam exhausting | |
| CN108468575A (en) | Extraction and condensing unit based on jet heat pump changes back pressure unit system and its operation method | |
| CN212177233U (en) | Saturated steam power generation vacuum system | |
| CN204113354U (en) | A kind of gland seal system and thermodynamic system of steam tur | |
| CN108167027B (en) | Negative pressure flash steam power generation method in pressurized gasification chilling process | |
| CN208793049U (en) | Double pressure back pressure turbine heating systems | |
| CN204420978U (en) | A kind of energy saving drainage system of boiler hydrophobic development unit | |
| CN206890501U (en) | A kind of exceeded governing system of thermal power generation unit condensate dissolved oxygen content | |
| CN206129337U (en) | Backpressure turbo generator set shaft seal heater condensate recovery system | |
| CN215491151U (en) | Shaft-exhaust turbine pipeline drainage system | |
| CN208860155U (en) | A kind of device reducing power plant Heating Season condensed water dissolved oxygen content | |
| CN209801595U (en) | Heat pipe mode phase change heat supply system | |
| CN204716313U (en) | A kind of shaft sealing cooler | |
| CN211903866U (en) | Maintenance-free heat pipe type low-temperature economizer device convenient to disassemble and assemble | |
| CN211316147U (en) | Condensate water recycling system | |
| CN209558935U (en) | A kind of small turbine condensing plant | |
| CN203848271U (en) | Recovering device for steam exhausted by deaerator | |
| CN204002956U (en) | A kind of condensed steam type small turbine exhaust steam waste heat utilization system that drives induced draught fan | |
| CN107726878B (en) | Natural ventilation direct air cooling system | |
| CN204902617U (en) | Steam turbine condensing plant | |
| CN206785437U (en) | Device for generating power by waste heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |