JPS5963487A - Condenser equipped with deaerating device - Google Patents

Abstract

PURPOSE:To deaerate condensed water effectively in the condenser by a method wherein an deaerating chamber, deaerating the condensed water, is provided below the tube nest of the condenser in a steam turbine cycle. CONSTITUTION:Turbine exhaust gas, introduced into the condensing tube nest 4 of the main trunk 1 of the condenser, is condensed by cooling water in the cooling tubes of the tube nest and flows down into a condensed water receiver 15 along an air conducting chamber. On the other hand, non-condensed gas and accompanied steam are induced into the air conducting chamber 9 and cooled by an air cooling tube nest 8, thereafter, is discharged to the outside of the system. The condensed water drops into the deaerating chamber 12 through a perforated plate 17, enters into an aerating tray chamber 13 and is mixed and deaerated by exhaust gas, which ascends and enters into the deaerating chamber 12, while the deaerated condensed water stays in a hot well 10 and is discharged out of the outlet port of the condensed water. On the other hand, the non-condensed gas enters into the air conducting chamber 9 through a bent tube 18. Supplementing water, from a nozzle 22, is deaerated by a rapid heat exchange due to atomization and the deaerating effect in the deaerating chamber 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a condenser with a deaerator that can also perform a deaeration action within the simmer water device.

[Technical background of the invention and its highlights] Generally, the equipment that makes up a steam turbine cycle is... carbon steel, low alloy steel,
In order to preserve the images of these devices, since they are made of alloy steel, etc.

There is a need for degassing, ie, removing non-condensable gases such as oxygen or carbon dioxide dissolved in the feed water. For this reason, independent deaerators are installed in conventional thermal power plants and nuclear couplants.

However, to provide a separate deaerator.

There may be restrictions on equipment placement, and there are also problems such as increased plant costs as independent equipment is required.

[Purpose of the invention]

In view of these points, the present invention incorporates a deaeration chamber into the condenser, thereby eliminating the need for a separate installation space for a deaerator, and effectively condensing condensate at both rated load and low load. The object of the present invention is to obtain a device that can perform accurate deaeration.

- [Summary of the Invention] The present invention provides a deaeration chamber for deaerating ascitic fluid condensed in the upper L [1 tube nest part] in the lower part of the tube nest in the V water container.
, (L! This is a device that effectively deaerates the water that condenses in the water container and allows it to circulate.

[The fruit of invention M+I (!+lI)]

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1 and FIG.

In the figure, the symbol / stands for the main body of the water bowl.

There are tube plate cores a provided on both sides of the main body.
, 2 b, the cooling pipes 1 and 7 consist of a large number of cooling pipes arranged parallel to each other and supported by screw support plates 3.
7i ijB tube 4'□q type (h). The condensing section pipes are divided into left and right λ tubes tla and b, and one end of one pipe a is open to the cooling water inlet side S defined at one end of the main body. Forced.

At one end of the other pipe 1l-b, there is a cooling six-person side water chamber S at one end of the main body trunk! ： 、 、 、 It is opened to the cooling water outlet side watertight (IZ + not shown) provided in contact with it.

The other ends of the parts fI and b are communicated with each other by a rear water chamber 6 provided at the other end of the main body.

Queen body torso/nike'mata. On the negative side of the steam turbine, there is a first transmission lower that connects to the first transmission port of the steam turbine.

Further, one side of the 611 condensing section g has a 9-air cooling pipe hole, and is connected to the air extraction manufacturer F, which is not shown on the base end side, and is provided with the above-mentioned first transmission introduction lower. A nitrogen tank vent 9 is provided which opens on the opposite side, and is further opened directly below the air vent chamber 9.

A deaeration unit 11 is provided at the lower part of the pot well IO, that is, a deaeration chamber 12 is provided directly below the air conduction chamber 9.
is provided, and a deaeration train/3 is attached to a part of the deaeration chamber/7. On one side of the above-mentioned deaeration chamber/, 2, there is a drainage basin with a weir cut out by a dam, below the opening side of the air beach channel, and the A partition plate iA hanging down from the open end of the air passage 9 is inserted into the water receiver 15 at a constant depth of Fy1. Departure 4;
! g l = j; One end of the opening vent pipe/8 is connected, and auxiliary air for deaeration (Jl-ship pipe/
9 is broken. The symbol 20 in the figure 1 indicates off toe.

1 condensate water output 0.2/Kairaze installed below the 10th floor.

On the other hand, on the J'fJ wall of the main body, a sleeve water nozzle, 7.2, is provided, and a perforated plate is installed below the secondary supply water 11^ injection nozzle, 7.2. 23 are provided.

However, at t7, at rated load, 6" steam turbine failure occurs (from the lower part of the first transmission to the main body/inside). On the other hand, the cooling water is on the cooling water inlet side Eisei S-Ra (1 part navy blue pipe,
Flow 1 traces inside one tube nest l/8 of tl 1-2. The water flows out through the water chamber (water chamber 4) to the other tube nest (not shown) to the cooling water outlet side ice chamber (not shown).

Therefore, the exhaust gas introduced into the condensation layer nest q in the main body JAIffl/ is condensed by the cooling water flowing in the cooling pipe of the tube nest, and is transferred from the baffle plate 7/t to the air conduction chamber 9. Meanwhile, the non-reduced gas and associated steam t'1 flow along the top wall of the condensate basin and flow down into the condensate receiving chamber. The air is sucked into the air, cooled through the 8 parts of the air cooling tube nest, and extracted out of the system by an air extraction device.

In addition, the condensed water that has flowed down to the condensate receiver It)) 15 is also
1η/g is exceeded, the perforated plate /7 is removed from the degassing chamber lλ, and the lower I2 is degassed by the pressure difference without following the darkening part. Air flows into the deaeration tray chamber/3 from the lower part, and the steam turbine air flows into the deaeration chamber/2 through -J=J'f and flows into the deaeration chamber/2, and the air is agitated and deaerated A1. ．． Ru. Then, the degassed condensate flows down from the deaeration tray 3 to the hot well 10, and after staying for a certain period of time, the water sift 1 protrudes 1 m and reaches 20 to 11 holes. On the other hand, non-condensable gas t in steam; air 371 from L vent pipe/gl/'C
It is guided through the passageway and υ1 is ejected out of the system by the air extraction device.

In this way, 12, the first introduction of the steam turbine, 1, 9 water vagina 1
There is water inside the main body, and the deaeration chamber/cooler is deaerated and the condensate cannot be purified. There is a slight pressure difference between the pressure inside (17/, 2), and the pressure inside
Since the steam turbine 1 air does not flow into the degassing chamber 7.2, the auxiliary steam supply pipe for degassing /9
Auxiliary steam is supplied to the deaeration chamber/2 from the auxiliary steam 71
5, the condensate flowing into the deaeration tank is agitated and degassed, and is led to the hot well 101fC in the same manner as described above.

- side, supply water drain, persimmon water supply nozzle, main body from 2 nozzles /
It is injected into the interior and becomes atomized. Therefore, the surface area of the dog is rapidly reduced due to the change in the amount of evil.

Heat exchange through direct contact with the V-packed turbine exhaust (2. The turbidity is + and 1 at the saturation depth inside the main body shell. However, the rapid force heat exchange with the I7 lever and the 7 lever removes the heat. Most of the degassed water in the make-up water is 1'+51?-;re, (rear sleeve water supply Q, 1, perforated board, ? falls from ■5, condensation hole l1
It is mixed with the condensate expanded and contracted in the degassing process, and then degassing.
The second stage of removal takes place in the lay room /J/.

〔Effect of the invention〕

As mentioned above, in the present invention, KSI 7
J (with a deaeration chamber inside the container), so it's self-explanatory:
It is necessary to install a deaerator in the city water tank!
1' The effect of condensed water can be used to deaerate the water.
Moreover, the 11H model equipped with a make-up water nozzle on the main body barrel also deaerates the make-up water. <7. 1371 (Dfgi A) Description No./Diagram is a partially cut-away 111th view of the ship of the present invention, air equipment A-1 condenser, No. 111,
The 1' cross section between the two goods is 1.

/ Body trunk, l/... Ex/assembly pipe nest g... Air cooling pipe p,, q/ Constricted air guide chamber 10/ Drywell, 1.
2. Take off (, U, /3.. Deaeration tray U, / Yumu) Water receiver, 7g.. Bent arm, /? Derust, use Sode Suke Ryoyu t
, (l' supply pipe, 2? Persimmon water supply four-shot nozzle.

1,111 applicants, Boar crotch, Live part 1 庬2π”

Claims (1)

[Scope of Claims] / The present invention is characterized in that a deaeration chamber is provided below the tube nest in the condenser for deaerating the condensate condensed in the tube nest. Deaerator and condenser. λ, it flows into the lower part of the degassing tray without passing through the tube nest. The steam turbine exhaust is located in the upper row inside the degassing tray 1/i. A patented condenser that is characterized by being supplied as deaeration steam into the deaeration chamber. 3. It is assumed that an auxiliary steam supply pipe for deaeration is connected to the deaeration chamber. Claim 7 or Clause V
] Deaerator and condenser described.