CN208564653U - A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed - Google Patents
A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed Download PDFInfo
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- CN208564653U CN208564653U CN201821175656.7U CN201821175656U CN208564653U CN 208564653 U CN208564653 U CN 208564653U CN 201821175656 U CN201821175656 U CN 201821175656U CN 208564653 U CN208564653 U CN 208564653U
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Abstract
The utility model discloses a kind of low pressure cylinder cooling systems of thermal power plant unit low pressure (LP) cylinder zero power output, including intermediate pressure cylinder, flash chamber, low pressure (LP) cylinder, condenser and solidifying water supply tank；The outlet of intermediate pressure cylinder is connected with one end of one end of the first valve and the second valve, the other end of second valve is connected with the higher pressure steam inlet side of flash chamber, the other end of first valve is connected with the steam inlet of low pressure (LP) cylinder, the outlet of low pressure (LP) cylinder is connected with the entrance of condenser, the 4th valve of outlet of solidifying water supply tank is connected with condenser, the 5th valve of outlet of solidifying water supply tank is connected with the low-temp low-pressure side entrance of flash chamber, the 6th valve of outlet of condenser is connected with the low-temp low-pressure side entrance of flash chamber, the low-temp low-pressure side outlet of flash chamber is connected through third valve with the steam inlet of low pressure (LP) cylinder, the system is able to solve the problem of vapour source parameter caused by the cooling low pressure (LP) cylinder of intermediate pressure cylinder steam discharge not easy to control and energy loss.
Description
Technical field
The utility model belongs to energy class steam turbine power generation technical field, is related to what a kind of thermal power plant unit low pressure (LP) cylinder zero was contributed
Low pressure cylinder cooling system.
Background technique
The generated energy of China's renewable energy occupies the first in the world, and still in Rapid development stage.Wind, photoelectricity are sent out rapidly
Exhibition causes current abandonment, abandoning optical issue serious.Therefore, to fired power generating unit, the especially flexibility of thermoelectricity unit and depth peak regulation
Ability is transformed, it is made preferably to dissolve generation of electricity by new energy, will be the Main way of China's fired power generating unit future development.
The power output operation of low pressure (LP) cylinder zero is a kind of thermoelectricity decoupling method for compressing electric load and improving thermic load, usually logical a small amount of
Intermediate pressure cylinder steam discharge enters low pressure (LP) cylinder as cooling steam, takes away air blast heat, so that unit safety operation.However, cooling steam
On the one hand not easy to control with load fluctuation due to vapour source, on the other hand, since its steam quality is higher, so that there are energy damages
It loses.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of thermal power plant unit low pressure (LP) cylinder zero
The low pressure cylinder cooling system of power output, it is not easily-controllable which is able to solve vapour source parameter caused by the cooling low pressure (LP) cylinder of intermediate pressure cylinder steam discharge
The problem of system and energy loss.
In order to achieve the above objectives, the low pressure cylinder cooling system packet that thermal power plant unit low pressure (LP) cylinder zero described in the utility model is contributed
Include intermediate pressure cylinder, flash chamber, low pressure (LP) cylinder, condenser, solidifying water supply tank, the first valve, the second valve, third valve, the 4th valve, the
Five valves and the 6th valve；
The outlet of intermediate pressure cylinder is connected with one end of one end of the first valve and the second valve, the other end of the second valve with
The higher pressure steam inlet side of flash chamber is connected, and the other end of the first valve is connected with the steam inlet of low pressure (LP) cylinder, low pressure (LP) cylinder
Outlet be connected with the entrance of condenser, the 4th valve of outlet of solidifying water supply tank is connected with condenser, solidifying water supply tank
Outlet is connected through the 5th valve with the low-temp low-pressure side entrance of flash chamber, the 6th valve of outlet of condenser and flash chamber
Low-temp low-pressure side entrance is connected, and the low-temp low-pressure side outlet of flash chamber is connected through third valve with the steam inlet of low pressure (LP) cylinder
It is logical.
Low pressure (LP) cylinder is coaxially arranged with intermediate pressure cylinder.
Condenser is connected by condensate pump with the 6th valve.
The utility model has the following beneficial effects:
The low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero described in the utility model is contributed is coagulated and is mended when specific operation
Water tank or the condensed water of condenser output enter in flash chamber, and a small amount of steam discharge of intermediate pressure cylinder output enters in flash chamber,
In flash chamber, condensed water through steam discharge carry out heating and it is flash vaporized be converted to low temperature and low pressure steam, the low temperature and low pressure steam into
Enter to low pressure (LP) cylinder and low pressure (LP) cylinder is cooled down, to thoroughly solve vapour source parameter caused by the cooling low pressure (LP) cylinder of intermediate pressure cylinder steam discharge not
The problem of easy to control and energy loss, structure is simple, easy to operate, and practicability is extremely strong.It should be noted that the utility model is adopted
The steam formed after being gasified with condensed water flashing cools down low pressure (LP) cylinder, to reduce energy loss, guarantees the stabilization of steam parameter
The simplicity for adjusting and operating.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure.
Wherein, 1 be intermediate pressure cylinder, 2 be low pressure (LP) cylinder, 3 be flash chamber, 4 be solidifying water supply tank, 5 be condenser, 6 be condensate pump,
7 be the first valve, 8 be the second valve, 9 be third valve, 10 be the 4th valve, 11 be the 5th valve, 12 be the 6th valve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero described in the utility model is contributed includes middle pressure
Cylinder 1, flash chamber 3, low pressure (LP) cylinder 2, condenser 5, solidifying water supply tank 4, the first valve 7, the second valve 8, third valve 9, the 4th valve
10, the 5th valve 11 and the 6th valve 12；The outlet of intermediate pressure cylinder 1 is connected with one end of one end of the first valve 7 and the second valve 8
Logical, the other end of the second valve 8 is connected with the higher pressure steam inlet side of flash chamber 3, the other end and low pressure (LP) cylinder of the first valve 7
2 steam inlet is connected, and the outlet of low pressure (LP) cylinder 2 is connected with the entrance of condenser 5, coagulates the 4th valve of outlet of water supply tank 4
Door 10 is connected with condenser 5, and the 5th valve 11 of outlet of solidifying water supply tank 4 is connected with the low-temp low-pressure side entrance of flash chamber 3
Logical, the 6th valve 12 of outlet of condenser 5 is connected with the low-temp low-pressure side entrance of flash chamber 3, the low-temp low-pressure of flash chamber 3
Side outlet is connected through third valve 9 with the steam inlet of low pressure (LP) cylinder 2.
Low pressure (LP) cylinder 2 and intermediate pressure cylinder 1 are coaxially arranged；Condenser 5 is connected by condensate pump 6 with the 6th valve 12.
The specific work process of the utility model are as follows:
The first valve 7 is closed, realizes the excision of low pressure (LP) cylinder 2, the steam discharge of intermediate pressure cylinder 1 does not enter in low pressure (LP) cylinder 2 at this time；Due to
Low pressure (LP) cylinder 2 and 5 connection of condenser and so that low pressure (LP) cylinder 2 be in vacuum state, open third valve 9, then formed very inside flash chamber 3
Altitude opens the second valve 8, then opens the 5th valve 11 or the 6th valve 12, makes condensed water or solidifying moisturizing in condenser 5
Condensed water in case 4 enters in flash chamber 3, then steam discharge heating and flash vaporized, flash distillation in flash chamber 3 through intermediate pressure cylinder 1
Obtained steam enters in low pressure (LP) cylinder 2 by blast heating to superheated steam state, finally enters condenser 5 and is condensed into condensed water,
The cooling to low pressure (LP) cylinder 2 is realized simultaneously.In addition, 1 steam discharge of intermediate pressure cylinder in flash chamber 3 after heat release can enter in heat exchangers for district heating
It is utilized again.
Claims (3)
1. the low pressure cylinder cooling system that a kind of thermal power plant unit low pressure (LP) cylinder zero is contributed, which is characterized in that including intermediate pressure cylinder (1), dilatation
Case (3), low pressure (LP) cylinder (2), condenser (5), solidifying water supply tank (4), the first valve (7), the second valve (8), third valve (9), the
Four valves (10), the 5th valve (11) and the 6th valve (12)；
The outlet of intermediate pressure cylinder (1) is connected with one end of one end of the first valve (7) and the second valve (8), the second valve (8)
The other end is connected with the high steam side of flash chamber (3), the other end of the first valve (7) and the steam inlet of low pressure (LP) cylinder (2)
It is connected, the outlet of low pressure (LP) cylinder (2) is connected with the entrance of condenser (5), coagulates the 4th valve (10) of outlet of water supply tank (4)
It is connected with condenser (5), coagulates the low-temp low-pressure side entrance of outlet the 5th valve (11) and flash chamber (3) of water supply tank (4)
It is connected, the 6th valve (12) of outlet of condenser (5) is connected with the low-temp low-pressure side entrance of flash chamber (3), flash chamber
(3) low-temp low-pressure side outlet is connected through third valve (9) with the steam inlet of low pressure (LP) cylinder (2).
2. the low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero according to claim 1 is contributed, which is characterized in that low pressure
Cylinder (2) and intermediate pressure cylinder (1) are coaxially arranged.
3. the low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero according to claim 1 is contributed, which is characterized in that condensing
Device (5) is connected by condensate pump (6) with the 6th valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821175656.7U CN208564653U (en) | 2018-07-24 | 2018-07-24 | A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821175656.7U CN208564653U (en) | 2018-07-24 | 2018-07-24 | A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed |
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| Publication Number | Publication Date |
|---|---|
| CN208564653U true CN208564653U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821175656.7U Active CN208564653U (en) | 2018-07-24 | 2018-07-24 | A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661726A (en) * | 2018-07-24 | 2018-10-16 | 华能国际电力股份有限公司 | A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed |
-
2018
- 2018-07-24 CN CN201821175656.7U patent/CN208564653U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661726A (en) * | 2018-07-24 | 2018-10-16 | 华能国际电力股份有限公司 | A kind of low pressure cylinder cooling system that thermal power plant unit low pressure (LP) cylinder zero is contributed |
| CN108661726B (en) * | 2018-07-24 | 2023-09-01 | 华能国际电力股份有限公司 | Low-pressure cylinder cooling system with zero output of low-pressure cylinder of heat supply unit |
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