The deaerator (teplomassoobmennyh)

 

(57) Abstract:

The invention relates to the deaerator comprises a cylindrical housing, a centrifugal separator, which is connected with the interior of the housing through holes formed in the lower part of the body, the tangential nozzle for supplying a liquid medium, at least one nozzle for supplying a gaseous medium and the nozzles drain the liquid and gaseous media, United with the inner space of the separator, the pipe outlet of gaseous medium from the separator passes through the housing. The invention improves the quality of the deaeration of water to use low-grade steam for deaeration and heating water. 4 C.p. f-crystals, 5 Il.

The invention relates to the field of power engineering and can be used for thermal deaeration of the feed water steam boilers and feed water heat grids as contact coolers flash steam deaeration plants, as contact plated heat exchangers in the heating of water due to direct contact with steam or hot gases.

Known teplomassoobmennyh - deaerator containing cylindrical body with top and bottom end caps, centrifugal separator, in which the old part of the body through holes, made in the lower part of the body, the tangential nozzle for supplying a liquid medium, at least one nozzle for supplying a gaseous medium and the nozzles drain the liquid and gaseous media, United with the inner space of the separator (see RF patent N 2095125, class C 02 F 1/20, 10.11.97).

The disadvantage of this invention is the low quality of the deaeration.

The objective of the invention is to improve the quality deaeration of water, increase functionality of the device, providing the possibility to use low-grade steam for deaeration and heating water.

The task is solved in that the pipe outlet of gaseous medium from the separator passes through the housing, which allows for separately heating the water and the separation from it of the gases, thereby improving the quality of deaeration of water and reduces the amount of steam output from the steam.

In addition, the pipe supply of gaseous medium is connected tangentially to the housing.

In addition, teplomassoobmennyh - deaerator contains an annular manifold connected with the interior of the housing through holes formed in the housing, and a nozzle for supplying a gaseous medium is connected to kaspereit, separating the housing on the input and output compartments.

Attach pipe supply of gaseous medium to the upper end cap of the housing allows the use of the deaerator /teplomassoobmennyh/ not only high-potential pairs, but also low-grade. The ring manifold associated with high-grade steam vapor tangential inlet, and the inner part of the body horizontal or inclined slits made in the body, allows you to save the momentums pair and pass it to the water. Due to this, the water at the exit of the device restores the static pressure.

Installing an annular wall separating the housing on the input and output compartments, allows more efficient use of high-grade steam. Lets keep the layer rotating fluid, through which barbatiruem pairs inside the case, not less than a certain thickness.

In Fig. 1 shows a longitudinal section of the apparatus, which is able to work as a deaerator, contact cooler vapour, contact water heater in which heat water to produce steam or hot flue gases;

in Fig. 2 is a variant of the same device /potencialjnom, and high-grade steam and hot water;

in Fig. 4 is a top view of the device;

in Fig. 5 is a variant of the longitudinal section of the lower part of the device, where instead of holes in the lower part of the body has a short tangential nozzles.

Teplomassoobmennyh has a cylindrical housing 1, with the upper 2 and lower 3 end caps, a tangential nozzle 4 for supplying a heated (deculated) water pipe 5 (steam) steam supply (it can be connected to the housing 1 tangentially or radially) and (or) pipe 18 for supplying steam through the Central hole in the top cover 2 (socket 5 - manifolds can be connected to the pipe 18 tangentially or it may be a continuation of the pipe 18). Inside the housing 1 teplomassoobmennyh has an annular wall (washer) 7 separating the housing on the input and output compartments, the openings 8 (or short tangential nozzles) for output media from the housing in a centrifugal separator (cyclone), with the shell 9, the upper 10 and lower 11 cover (bottom), the tangential inlet 12 to outlet fluid after heating or deaeration pipe 13 venting the gaseous environment (or vapour).

Teplomassoobmennyh depicted in Fig. 3, the circular or in the form of nozzles).

These openings connecting the interior part of the housing 1 with the annular chamber located around the casing, made of shell 15, the annular cover 16 and the partition 10. This camera is connected to the pipe 17 for supplying a gaseous medium (pair). Tangential nozzle 12 serves for draining liquid from the separator (cyclone). The boundaries indicated by the numeral 19.

The operation of the apparatus is as follows.

1. The operation of the apparatus depicted in Fig. 1, figs. 2 as a deaerator.

Deculated water (cold or heated below saturation temperature) is fed into the housing through the tangential nozzles 4 and acquires a rotary motion. Set the vertical boundary of rotating media, the diameter of which is always greater than the diameter of the hole in the lid 2 (no water gets into the pipe 18). Steam is supplied into the housing 1 through the pipe 18, connected to the steam line end or tangential nozzle 5. The steam comes into contact with the rotating flow of water through the line 19 partition and moves in a spiral down. The steam is condensed and the water is heated to boiling, breaking free from non-condensable gases. Is heat and mass transfer. Nakabango pair are routed through the holes 8 in the separator (cyclone), where the separation media. Gases and part descendancies pair (vapour) rush into the evaporator pipe 13 through the hole in the lid 3. Deaerated water, while maintaining the rotational movement inside the separator (cyclone), falls into the discharge pipe 12. The dynamic pressure of the rotational motion of the water goes into static (partially restored water pressure). Further deaerated water flows into the tank deaerated water or in the second stage deaerating plant - dispersing device. Through the pipe 18 can be served as a low-grade pairs (P = 0,2 MPa), and more high-grade.

2. The operation of the apparatus depicted in Fig. 3 as a deaerator.

The main thread deculated water enters into the housing through the tangential nozzles 4. The second deculated water flow with less pressure (cooling water from the contact of flash steam coolant) flows through the nozzles 5, 18. Deaerating the medium (steam or hot water) flows through the tangential inlet 17 into the annular manifold formed by the shell 15 and the through holes 14 (which may be slotted, tangential, radial, made in the form of nozzles, etc.,), barbotine through freshauditions pairs (P = 0,2 MPa), if it is not supplied cooling water. (Two threads a couple of different selections turbine: low-potential - through the nozzles 5, 18, high-potential - through pipe 17).

3. The operation of the apparatus depicted in Fig. 1, 2 as flash steam coolant deaerating plant or condenser.

Cooling water flows through the pipe 4 and acquires a rotary motion with a vertical interface 19. The flash steam from the deaerator installation through pipe 18 (with spin when using the pipe 5 or without twist). When the contact pair with cooling water inside the housing 1 and the passage holes (nozzles) 8 it is condensed, the water is heated and fed into the tank or in the tank. In the cyclone steam (non-condensable gases with low vapor) is separated from water and is removed through the pipe 13. The heated water leaves the cooling steam through the pipe 12.

4. The operation of the apparatus as contact heat exchanger.

On the tangential nozzles 4 and 5 (Fig. 1, 2) or 17, 4, 5 (Fig. 3, 4) is respectively water and steam with different temperatures. The water is heated, steam is condensed. Noncondensable gases and excess steam can be discharged through the pipe 13 pipe 13 may be covered ass is

Through the branch pipes 4, cold water enters through the pipe 18 to the combustion gases from the boiler or furnace. When the water contact with hot gases water takes away from them warm and heated. The cooled gases are ejected through the pipe 13, the heated water is discharged through pipe 12. Contained in gases water vapor condenses, which significantly increases the efficiency of fuel use.

1. Teplomassoobmennyh-deaerator containing cylindrical body with top and bottom end caps, centrifugal separator, made in the form of the shell and connected with the interior of the housing through holes formed in the lower part of the body, the tangential nozzle for supplying a liquid medium, at least one nozzle for supplying a gaseous medium and the nozzles drain the liquid and gaseous media, United with the inner space of the separator, characterized in that the pipe outlet of gaseous medium from the separator passes through the body.

2. Teplomassoobmennyh-deaerator under item 1, characterized in that the pipe supply of gaseous medium is connected tangentially to the housing.

3. Teplomassoobmennyh-deaerator under item 1, characterized in that it contains a ring collector, connect aznoe environment connected to the specified collector.

4. Teplomassoobmennyh-deaerator under item 1, characterized in that inside the case above the holes, connecting the chassis to the separator, installed the annular partition separating the housing on the input and output compartments.

5. Teplomassoobmennyh-deaerator under item 1, characterized in that the pipe supply of gaseous medium is connected to the upper end cap.

 

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