CN217783586U - Cold end system of steam turbine and floating power generation ship - Google Patents
Cold end system of steam turbine and floating power generation ship Download PDFInfo
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- CN217783586U CN217783586U CN202221934384.0U CN202221934384U CN217783586U CN 217783586 U CN217783586 U CN 217783586U CN 202221934384 U CN202221934384 U CN 202221934384U CN 217783586 U CN217783586 U CN 217783586U
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Abstract
The utility model discloses a steam turbine cold junction system and floating power generation ship, include: a circulating water taking device, a condenser and a circulating water drainage device; the circulating water taking device comprises a circulating water inlet pipe, a water taking pool and a circulating water pump, and the circulating water draining device comprises a siphon well; one end of the circulating water inlet pipe is connected with a water taking tank, the other end of the circulating water inlet pipe is connected with a circulating water pump, and the outlet of the circulating water pump penetrates through the deck through a circulating water pipeline to be connected with a condenser; the condenser is arranged on the deck, the outlet of the condenser is connected with the water inlet pipe of the siphon well through a circulating water pipeline, and the water outlet pipe of the siphon well penetrates through the deck to the bottom layer of the ship. The water intake and the water discharge are respectively arranged at two sides of the ship body, the water intake pool is directly communicated with the sea to take water, and after passing through the circulating water pump, the condenser and the siphon well, the water outlet pipe penetrates through the deck to the bottom layer of the ship to realize water discharge into the sea.
Description
Technical Field
The utility model relates to a floating power generation ship technical field especially relates to a steam turbine cold junction system and floating power generation ship.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The power generation ship is a ship provided with a whole set of power generation equipment, and a cold end system of a steam turbine is related equipment taking a condenser as a core. A floating power generation ship is a movable offshore power station, and a cold end system of a steam turbine of the floating power generation ship mainly comprises a condenser, a seawater direct-current cooling circulating water system, a vacuumizing system and the like. Because of the special structure and external environment of the power generating ship, the difference between the cold end system designed on the basis of land and the cold end system designed on the sea is large, and the existing method is not suitable for large floating power generating ships.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a steam turbine cold junction system and floating power generation ship, the intake sets up respectively in the both sides of hull with the outlet, and the direct sea water intaking in water intaking pond, behind circulating water pump, condenser and siphon well, the outlet pipe passes deck to hull bottom layer, realizes that the drainage goes into the sea.
In order to realize the purpose, the utility model adopts the following technical scheme:
in a first aspect, the utility model provides a steam turbine cold junction system, include: a circulating water taking device, a condenser and a circulating water drainage device; the circulating water taking device comprises a circulating water inlet pipe, a water taking pool and a circulating water pump, and the circulating water draining device comprises a siphon well;
one end of the circulating water inlet pipe is connected with a water taking tank, the other end of the circulating water inlet pipe is connected with a circulating water pump, and the outlet of the circulating water pump penetrates through the deck through a circulating water pipeline to be connected with a condenser; the condenser is arranged on the deck, the outlet of the condenser is connected with the water inlet pipe of the siphon well through a circulating water pipeline, and the water outlet pipe of the siphon well penetrates through the deck to the bottom layer of the ship.
As an alternative embodiment, a water filter is arranged between the water taking pool and the circulating water pump.
As an alternative embodiment, an overflow weir is arranged at the bottom of the siphon well, and a water inlet pipe and a water outlet pipe are respectively arranged at the upstream water inlet position and the downstream water outlet position of the overflow weir.
In an alternative embodiment, the top of the siphon well is provided with an open structure to atmosphere.
As an alternative embodiment, the circulating water inlet pipe is connected with a water intake at the water taking tank, and the water outlet of the circulating water inlet pipe and the water outlet of the siphon well are respectively arranged at different positions.
As an alternative embodiment, a thermal deoxygenation device is arranged in the condenser.
In an alternative embodiment, the condenser is connected to a vacuum pump for pumping non-condensable gases from the condenser.
As an alternative embodiment, a water chamber air pumping port is arranged at the top of a water chamber of the condenser and is connected with a water chamber vacuum pump.
As an alternative embodiment, the condenser is an axial steam inlet; and the lateral wall of the outer side of the water taking pool is provided with a hole so as to be directly communicated with the sea.
In a second aspect, the present invention provides a floating power generation vessel, including: the water intake pond is arranged on one side of the ship body, and the water outlet of the siphon well water outlet pipe is arranged on the other side of the ship body.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a steam turbine cold junction system suitable for floating electricity generation ship, the intake of circulating water inlet tube connection pond department sets up respectively in the both sides of hull with the outlet of siphon well outlet pipe, and the direct sea water intaking in water intaking pond, after circulating water pump, condenser and siphon well, the outlet pipe passes deck to ship bottom, and the lift of circulating water pump is saved to the sea of drainage income, reduces the occupation space of electricity generation ship.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic view of a cold end system of a steam turbine provided in embodiment 1 of the present invention;
fig. 2 is a schematic view of a floating power generation ship provided in embodiment 2 of the present invention;
the system comprises a water taking tank 1, a water filter 2, a water filter 3, a circulating water pump 4, a circulating water pipeline 5, a steamer 6 and a siphon well.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and furthermore, it should be understood that the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
Example 1
As shown in fig. 1, the present embodiment provides a cold end system of a steam turbine, including: a circulating water taking device, a condenser 5 and a circulating water drainage device; the circulating water taking device comprises a circulating water inlet pipe, a water taking pool 1 and a circulating water pump 3, and the circulating water draining device comprises a siphon well 6;
one end of the circulating water inlet pipe is connected with the water taking tank 1, the other end of the circulating water inlet pipe is connected with the circulating water pump 3, and an outlet of the circulating water pump 3 penetrates through a deck through a circulating water pipeline 4 to be connected with a condenser 5; condenser 5 locates on the deck, and the exit of condenser 5 passes through circulating water pipe 4 and connects siphon well 6, and the outlet pipe of siphon well 6 passes deck to ship bottom.
In this embodiment, the condenser 5 is an axial steam intake, is arranged at a main deck layer at a low position, and has a cooling mode of seawater direct current circulation.
As an alternative embodiment, a thermal deoxygenation device is arranged in the condenser 5 to maintain the water supply quality of the thermodynamic system.
In the embodiment, in the circulating water taking device, the outer side wall of the water taking pool 1 is provided with a hole so as to be directly used for taking water from the sea;
a water filter 2 is arranged between the water taking pool 1 and the circulating water pump 3, one end of the circulating water inlet pipe is connected with the water taking pool 1 to take water from the water taking pool 1, then the water enters the circulating water pump 3 after passing through the water filter 2, and the outlet of the circulating water pump 3 passes through the main deck through a circulating water pipeline 4 and enters the condenser 5.
As an alternative embodiment, the filter precision of the water filter 2 does not exceed 4mm.
It will be appreciated that the water access basin 1 may be provided in plurality.
As an alternative embodiment, a chemical dosing device is arranged at a water inlet connected with the water intake pool 1 of the circulating water intake pipe to play a role in sterilizing and killing algae.
In the embodiment, in the circulating water drainage device, the siphon well 6 is arranged to save the lift of the circulating water pump 3, and the saved lift is obtained by subtracting the height of the water level of the siphon well 6 from the top standard height of the water chamber of the condenser 5; specifically, the method comprises the following steps:
the siphon well 6 is arranged on the main deck layer, the siphon well 6 comprises a water inlet pipe, a water outlet pipe and an overflow weir, the overflow weir is arranged at the bottom of the siphon well 6, and the water inlet pipe and the water outlet pipe are respectively arranged at the upstream water inlet part and the downstream water outlet part of the overflow weir;
the outlet of the condenser 5 is connected with the water inlet pipe of the siphon well 6 through the circulating water pipeline 4, and the water outlet pipe of the siphon well 6 penetrates through the deck to the bottom layer of the ship to discharge water into the sea.
In an alternative embodiment, the top of the siphon well 6 is provided with an open structure to the atmosphere.
Alternatively, the circulating water outlet and the circulating water intake are arranged at different positions.
In this embodiment, the cold end system of the steam turbine further includes a vacuum pump, and the vacuum pump is connected to the condenser 5 and is configured to extract non-condensable gas in the condenser 5, so as to maintain a high vacuum of the condenser 5.
In an alternative embodiment, the vacuum pump is cooled by a tubular heat exchanger.
As an alternative embodiment, the vacuum pump is arranged in a modular packaging mode, a public base is adopted, and the vacuum pump is integrally hoisted.
In this embodiment, a water chamber air pumping port is disposed at the top of the water chamber of the condenser, the water chamber air pumping port is connected to a water chamber vacuum pump, and the water chamber vacuum pump is used to pump air from the water chamber, so as to maintain the siphon effect during the starting and running processes of the system.
In an alternative embodiment, the water chamber vacuum pump is cooled by closed water.
As an alternative embodiment, a rubber ball cleaning device is adopted to clean dirt in the heat exchange tube of the condenser in operation, so that the heat transfer efficiency is improved.
Example 2
As shown in fig. 2, this embodiment provides a floating power generation ship, which includes a ship body and the cold end system of the steam turbine described in embodiment 1, where the water intake pool is disposed on one side of the ship body, and the water discharge port of the siphon well water outlet pipe is disposed on the other side of the ship body.
As an alternative embodiment, a water intake and a water discharge of circulating water are respectively arranged at the tail side and the head side of the ship body; 4 water taking ponds 1 can be arranged at the bottom layer of the ship on the stern side, and the lateral wall of the water taking pond 1 is provided with a hole to be communicated with the sea.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A steam turbine cold end system, comprising: a circulating water taking device, a condenser and a circulating water drainage device; the circulating water taking device comprises a circulating water inlet pipe, a water taking pool and a circulating water pump, and the circulating water draining device comprises a siphon well;
one end of the circulating water inlet pipe is connected with a water taking tank, the other end of the circulating water inlet pipe is connected with a circulating water pump, and the outlet of the circulating water pump penetrates through a deck through a circulating water pipeline to be connected with a condenser; the condenser is arranged on the deck, the outlet of the condenser is connected with the water inlet pipe of the siphon well through a circulating water pipeline, and the water outlet pipe of the siphon well penetrates through the deck to the bottom layer of the ship.
2. The turbine cold end system of claim 1, wherein a water filter is provided between the water extraction sump and the circulating water pump.
3. The cold end system of a steam turbine as claimed in claim 1, wherein a weir is provided at the bottom of the siphon well, and the inlet pipe and the outlet pipe are provided at an upstream inlet and a downstream outlet of the weir, respectively.
4. The turbine cold end system of claim 1, wherein the top of the siphon well is provided with an open structure to atmosphere.
5. The cold end system of a steam turbine as claimed in claim 1 wherein the circulating water inlet pipe is connected to the intake at the intake pool and is positioned at a different location from the outlet of the siphon well outlet pipe.
6. The turbine cold end system of claim 1, wherein a thermal deoxygenator is provided in said condenser.
7. The turbine cold end system of claim 1, wherein the condenser is connected to a vacuum pump, and the vacuum pump is configured to pump non-condensable gases from the condenser.
8. The turbine cold end system of claim 1, wherein a water chamber air extraction port is formed in a top portion of a water chamber of the condenser, and the water chamber air extraction port is connected with a water chamber vacuum pump.
9. The turbine cold end system of claim 1, wherein the condenser is an axial admission; and the lateral wall of the outer side of the water taking pool is provided with a hole so as to be directly communicated with the sea.
10. A floating power generating vessel, comprising: the turbine cold end system of any one of claims 1 to 9, wherein the water intake pool is provided on one side of the hull and the water outlet of the siphon well water outlet pipe is provided on the other side of the hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221934384.0U CN217783586U (en) | 2022-07-25 | 2022-07-25 | Cold end system of steam turbine and floating power generation ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221934384.0U CN217783586U (en) | 2022-07-25 | 2022-07-25 | Cold end system of steam turbine and floating power generation ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217783586U true CN217783586U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221934384.0U Active CN217783586U (en) | 2022-07-25 | 2022-07-25 | Cold end system of steam turbine and floating power generation ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217783586U (en) |
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2022
- 2022-07-25 CN CN202221934384.0U patent/CN217783586U/en active Active
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