CN212563351U - Recovery unit for condensate water of shaft seal cooler of condensing steam turbine body - Google Patents
Recovery unit for condensate water of shaft seal cooler of condensing steam turbine body Download PDFInfo
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- CN212563351U CN212563351U CN202021482970.7U CN202021482970U CN212563351U CN 212563351 U CN212563351 U CN 212563351U CN 202021482970 U CN202021482970 U CN 202021482970U CN 212563351 U CN212563351 U CN 212563351U
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- steam turbine
- cooler
- water
- seal cooler
- condenser
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a condensing steam turbine body bearing seal cooler recovery unit for condensate water, including turbine bearing seal cooler and turbine condenser and condensate pump equipment system, be equipped with recovery unit between turbine bearing seal cooler and the turbine condenser and condensate pump equipment system, recovery unit includes electronic vacuum stop valve, balanced container liquid level detection spare, orifice plate and single-stage water seal, turbine condenser and condensate pump equipment system includes condenser main part and condensate pump main part, and the device mainly comprises electronic vacuum stop valve, balanced container liquid level detection spare, orifice plate and single-stage water seal jointly, and balanced container liquid level detection spare is used for converting the condensate water liquid level in the turbine bearing seal cooler into the analog quantity, and then control electronic vacuum stop valve, and the part of orifice plate is used for controlling the velocity of flow, the method can efficiently and reliably carry out the recovery process of the condensed water of the shaft seal cooler of the condensing steam turbine body.
Description
Technical Field
The utility model relates to a condensate recovery technical field especially relates to a recovery unit is used to condensate steam turbine body bearing seal cooler condensate water.
Background
A steam turbine is also called as a steam turbine engine and is a rotary steam power device, the steam turbine is an external combustion rotary machine which can convert steam heat energy into mechanical work, after steam from a boiler enters the steam turbine, the steam sequentially passes through a series of nozzles and movable blades which are arranged in an annular mode, the heat energy of the steam is converted into the mechanical energy of the rotation of a steam turbine rotor, the steam is subjected to energy conversion in different modes in the steam turbine to form the steam turbines with different working principles, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto the blades to rotate the rotor provided with blade rows, and simultaneously, the steam turbine does work outwards, the steam turbine is the main equipment of a modern thermal power plant and is also used in the metallurgical industry, the chemical industry and ship power devices, steam leakage of a steam turbine shaft seal is usually recovered into a cooler which operates at a micro negative pressure in a power station, this mode conventionality that condensate water retrieved to system adopts "low level water tank + low level drainage pump" to retrieve to the oxygen-eliminating device, or "multistage water seal" retrieves to the condenser, among present technological means, first kind scheme system is complicated, and relative investment is high, and the second kind scheme takes up an area of for a long time many, and the size is big, and the system is unreliable, easily makes mistakes and causes unable normal drainage, to a certain extent, has reduced the efficiency of condensing steam turbine body bearing seal cooler condensate water recovery process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a condensing steam turbine body bearing seal cooler recovery unit for condensate water, have device simple structure, operation reliable, take up an area of advantage less and with the investment low.
The technical scheme for realizing the purpose is as follows:
the utility model provides a condensing steam turbine body bearing seal cooler recovery unit for condensate water, including turbine bearing seal cooler and turbine condenser and condensate pump equipment system, the turbine bearing seal cooler with be equipped with recovery unit between turbine condenser and the condensate pump equipment system, recovery unit includes electronic vacuum stop valve, balanced container liquid level detection spare, orifice plate and single-stage water seal arrangement, turbine condenser and condensate pump equipment system includes condenser main part and condensate pump main part, balanced container liquid level detection spare with single-stage water seal arrangement is located one side of turbine bearing seal cooler, electronic vacuum stop valve with the orifice plate is located one side of turbine condenser and condensate pump equipment system.
Preferably, a plurality of throttling holes are distributed on the throttling orifice plate. In order to cause the fluid pressure to decrease.
Preferably, a trench is arranged on one side of the single-stage water sealing device, which is different from the steam turbine shaft seal cooler. In order to allow the condensate drainage process to proceed normally.
Preferably, the steam turbine shaft seal cooler, the steam turbine condenser and the condensate pump equipment system are internally provided with condensate water. Provides necessary conditions for the recycling treatment process.
Preferably, the single-stage water sealing device is provided with a water sealing device stop valve. In order to ensure the normal and stable liquid circulation process.
Preferably, the balance container liquid level detection piece is a balance container water level meter. In order to allow the water level monitoring process to be normally performed.
The utility model has the advantages that: the utility model discloses in the in-process of using, the device mainly comprises electronic vacuum stop valve, balanced container liquid level detection spare, orifice plate and single-stage water seal arrangement jointly, balanced container liquid level detection spare is used for converting the condensate water liquid level in the steam turbine bearing seal cooler into the analog quantity, and then control electronic vacuum stop valve, the part of orifice plate is used for controlling the velocity of flow, in case the electronic vacuum stop valve opens the in-process and causes the condenser main part vacuum fluctuation in steam turbine condenser and condensate pump equipment system, the stop valve is normally closed on the single-stage water seal arrangement, open when above-mentioned pipeline trouble, condensate water in the steam turbine bearing seal cooler discharges to the trench through the single-stage water seal arrangement this moment, the device system is simple, the operation is reliable, take up an area of fewly, the investment is low, the system complexity and the relative high investment of conventional "low level water tank + low level drain pump, and the problems of high occupied area, large appearance, unreliability and the like of the conventional 'multi-stage water seal' configuration are solved, so that the condensate water recovery process of the shaft seal cooler of the condensing steam turbine body is efficiently and reliably carried out.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a steam turbine shaft seal cooler according to the present invention;
fig. 3 is the structure schematic diagram of the steam turbine condenser and condensate pump equipment system of the present invention.
Description of reference numerals:
1. an electric vacuum stop valve; 2. a balance container liquid level detection member; 3. a restriction orifice plate; 4. a single-stage water seal device; 5. a steam turbine shaft seal cooler; 6. steam turbine condenser and condensate pump equipment system; 7. a condenser main body; 8. a condensate pump body.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 3, the utility model provides a condensate recovery device for a condensing steam turbine body shaft seal cooler, comprising a steam turbine shaft seal cooler 5 and a steam turbine condenser and condensate pump equipment system 6, the recovery device is arranged between the steam turbine shaft seal cooler 5 and the steam turbine condenser and condensate pump equipment system 6, the recovery device comprises an electric vacuum stop valve 1, a balance container liquid level detection part 2, a throttle orifice plate 3 and a single-stage water seal device 4, the steam turbine condenser and condensate pump equipment system 6 comprises a condenser main body 7 and a condensate pump main body 8, the balance container liquid level detection part 2 and the single-stage water seal device 4 are arranged on one side of the steam turbine shaft seal cooler 5, the electric vacuum stop valve 1 and the throttle orifice plate 3 are arranged on one side of the steam turbine condenser and condensate pump equipment system 6, due to the defects of the original conventional configuration scheme, the improved device is adopted to carry out recovery by a mode of 'liquid level signal + shut-off valve', the device mainly comprises an electric vacuum stop valve 1, a balance container liquid level detection part 2, a throttle orifice plate 3 and a single-stage water seal device 4, wherein the balance container liquid level detection part 2 is used for converting the liquid level of condensed water in a turbine shaft seal cooler 5 into analog quantity, and further controlling the electric vacuum stop valve 1, the electric vacuum stop valve 1 is opened when the liquid level is high, the condensed water with micro negative pressure in the turbine shaft seal cooler 5 is sucked into a condenser main body 7 with high vacuum, so that the condensed water in the turbine shaft seal cooler 5 is recovered into a turbine condenser and condensed water pump equipment system 6, the electric vacuum stop valve 1 is closed when the liquid level is low, the discharge of the condensed water in the turbine cooler 5 is stopped, and in the application of the device, the throttle orifice plate 3 is used for controlling the flow rate of shaft seal, effectively prevent that electronic vacuum stop valve 1 from opening the in-process and arousing condenser main part 7 vacuum fluctuation, stop valve on the single-stage water seal arrangement 4 is normally closed, open during above-mentioned pipeline trouble, the condensate water then discharges to the trench through single-stage water seal arrangement 4 in the steam turbine bearing seal cooler 5 this moment, the device system is simple, the operation is reliable, take up an area of fewly, the investment is low, the system complexity and the relative high investment of conventional "low level water tank + low level drain pump" configuration have been reduced, and solve the high occupation of land of conventional "multistage water seal" configuration, huge appearance and unreliable scheduling problem, make the high-efficient reliable operation of condensing steam turbine body bearing seal cooler condensate water recovery process. The device is further explained according to the attached drawings.
Further, as shown in fig. 1, a plurality of orifice holes are distributed on the orifice plate 3, and the principle of the orifice plate 3 is that when fluid flows in a pipeline, the aperture of the orifice plate is reduced at a proper position of the pipeline, when the liquid passes through a throat, a flow bundle becomes thin or shrinks, and due to local resistance of the orifice plate, the pressure of the fluid is reduced.
Furthermore, as shown in fig. 1 and 2, a trench is disposed on a side of the single-stage water seal device 4 different from the turbine shaft seal cooler 5, and when the pipeline is opened due to a failure, the condensed water in the turbine shaft seal cooler 5 is discharged to the trench through the single-stage water seal device 4, so that the drainage process of the condensed water is performed normally.
Further, as shown in fig. 1 and 2, condensed water is provided inside the turbine shaft seal cooler 5 and the turbine condenser and condensed water pump equipment system 6, and the condensed water in the turbine shaft seal cooler 5 and the turbine condenser and condensed water pump equipment system 6 is the shaft seal cooler condensed water and the condenser condensed water respectively, so that necessary conditions are provided for the recovery processing process.
Further, as shown in fig. 1 and 2, a water seal device stop valve is arranged on the single-stage water seal device 4, and the stop valve on the single-stage water seal device 4 is normally closed, so that the liquid circulation process is normally and stably performed.
Further, as shown in fig. 1 and 2, the balance container liquid level detection part 2 is a balance container water level meter, and the balance container water level meter is arranged, so that the water level monitoring process is normally performed, and the sequential processing process is ensured.
The utility model discloses a theory of operation is: in the using process of the utility model, because of the defect of the original conventional configuration scheme, the improved device is adopted to recover in the mode of 'liquid level signal + shut-off valve', the device mainly comprises an electric vacuum stop valve 1, a balance container liquid level detection part 2, a throttling orifice plate 3 and a single-stage water seal device 4, wherein the balance container liquid level detection part 2 is used for converting the condensate liquid level in a turbine shaft seal cooler 5 into analog quantity, and further controlling the electric vacuum stop valve 1, the electric vacuum stop valve 1 is opened when the liquid level is high, the condensate of micro negative pressure in the turbine shaft seal cooler 5 is sucked into a high-vacuum condenser main body 7, thereby the condensate in the turbine shaft seal cooler 5 is recovered into a turbine condenser and condensate pump equipment system 6, and the electric vacuum stop valve 1 is closed when the liquid level is low, the discharge of the condensate in the turbine shaft seal cooler 5 is stopped, in the device application, the orifice plate 3 is used for controlling the flow velocity, effectively prevent that the electronic vacuum stop valve 1 from opening the in-process and arousing condenser main part 7 vacuum fluctuation, stop valve on the single-stage water seal device 4 is normally closed, open when above-mentioned pipeline breaks down, the condensate water in the steam turbine bearing seal cooler 5 then discharges to the trench through the single-stage water seal device 4 this moment, the device system is simple, the operation is reliable, take up an area of less, the investment is low, the system complexity and the relative high investment of conventional "low level water tank + low level drain pump" configuration have been reduced to and solve the high occupation of land of conventional "multistage water seal" configuration, huge appearance and unreliable scheduling problem, make the high-efficient reliable operation of condensing steam turbine body bearing seal cooler condensate water recovery process.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (6)
1. The recovery device is characterized in that the recovery device is arranged between the steam turbine shaft seal cooler and the steam turbine condenser and condensate pump equipment system, the recovery device comprises an electric vacuum stop valve, a balance container liquid level detection piece, a throttle orifice plate and a single-stage water seal device, the steam turbine condenser and condensate pump equipment system comprises a condenser main body and a condensate pump main body, the balance container liquid level detection piece and the single-stage water seal device are located on one side of the steam turbine shaft seal cooler, and the electric vacuum stop valve and the throttle orifice plate are located on one side of the steam turbine condenser and condensate pump equipment system.
2. The recovery device for condensed water of a shaft seal cooler of a condensing steam turbine body according to claim 1, wherein a plurality of throttle holes are distributed on the throttle orifice plate.
3. The recovery device for condensed water of a condensing steam turbine body shaft seal cooler according to claim 1, wherein a trench is formed on a side of the single-stage water seal device, which is different from the side of the steam turbine shaft seal cooler.
4. The apparatus for recovering condensed water from a gland seal cooler of a condensing steam turbine according to claim 1, wherein the condensed water is contained in the gland seal cooler, the steam turbine condenser and the condensed water pump system.
5. The recovery device for condensed water of a shaft seal cooler of a condensing steam turbine body according to claim 1, wherein the single-stage water seal device is provided with a water seal device stop valve.
6. The recovery apparatus for condensate water in a shaft seal cooler of a condensing steam turbine according to claim 1, wherein the equilibrium vessel level detecting member is an equilibrium vessel level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482970.7U CN212563351U (en) | 2020-07-24 | 2020-07-24 | Recovery unit for condensate water of shaft seal cooler of condensing steam turbine body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482970.7U CN212563351U (en) | 2020-07-24 | 2020-07-24 | Recovery unit for condensate water of shaft seal cooler of condensing steam turbine body |
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| Publication Number | Publication Date |
|---|---|
| CN212563351U true CN212563351U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021482970.7U Expired - Fee Related CN212563351U (en) | 2020-07-24 | 2020-07-24 | Recovery unit for condensate water of shaft seal cooler of condensing steam turbine body |
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| CN (1) | CN212563351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198161A (en) * | 2021-12-16 | 2022-03-18 | 华能国际电力股份有限公司丹东电厂 | Comprehensive utilization system for shaft seal heater of thermal power plant |
-
2020
- 2020-07-24 CN CN202021482970.7U patent/CN212563351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198161A (en) * | 2021-12-16 | 2022-03-18 | 华能国际电力股份有限公司丹东电厂 | Comprehensive utilization system for shaft seal heater of thermal power plant |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |