CN202885584U

CN202885584U - Condenser for turboset

Info

Publication number: CN202885584U
Application number: CN 201220404376
Authority: CN
Inventors: 詹春; 徐文宫; 桂汉生; 邢亚捷; 潘松林; 陈焱; 黄�俊
Original assignee: MAANSHAN DANGTU POWER GENERATION Co Ltd
Current assignee: MAANSHAN DANGTU POWER GENERATION Co Ltd
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2013-04-17
Anticipated expiration: 2022-08-15

Abstract

The utility model belongs to the field of condensing equipment, in particular to a condenser for a turboset. The condenser comprises a shell body and an inlet part which penetrates through the shell body and is used for being communicated with the an outer cold water channel, the inlet part extends inwards from the shell body to the inner cavity of the condenser and forms a water inlet pipe, and a spray mouth penetrating through a pipe wall is formed in the water inlet pipe. According to the technical scheme, on one hand, due to the fact that granularity of water is reduced, the heat exchange area of exhausted steam of turbine with the water is increased, and the condensation efficiency of the condenser is high. On the other hand, due to the fact that the pipe body of the water inlet pipe is arranged in the inner cavity of the condenser with high temperature, demineralized water with low temperature is preliminarily heated when passing through the water inlet pipe, and after the demineralized water is sprayed out through the spray mouth and is mixed and condensed with the exhausted steam of the turbine, the temperature of condensate water is improved remarkably. Besides, the increase of the temperature of the condensate water directly increases the dissolved oxygen in the condensate water, at the same time, the function of reducing the oxygen corrosion of a pipeline is achieved, and therefore the service lives of all parts are effectively guaranteed.

Description

A kind of Steam Turbine condenser

Technical field

The utility model belongs to the condensing plant field, is specifically related to a kind of Steam Turbine condenser.

Background technology

Condenser is to rely on cooling medium to be condensed into a kind of heat exchanger of water the steam turbine exhaust steam, claims again steam condenser.Condenser is condensed into the water boiler of feeding reuses except the steam discharge with steam turbine, can also set up at the turbine discharge place vacuum and keep vacuum to reduce coal consumption.The Chemical making up water model of existing unit can with reference to shown in Figure 1, all be to pump in the condenser through the desalination water pump, with the condensation by mixing of final realization cooling water and unit steam discharge; Demineralized water in entering condenser after, directly the shape with water column sprays in its porch, do not realize atomizing fully, thereby often cause following problem: on the one hand, demineralized water directly sprays with the water column form after entering condenser, cause between itself and turbine discharge heat exchange area too small, often be difficult to realize both abundant mixing, inefficiency; On the other hand, because the demineralized water temperature is low, contain air capacity large, once spraying into of a large amount of demineralized waters very easily causes the condensing water temperature that mixes generation excessively low, dissolved oxygen amount exceeds standard, the result who directly causes is that finally to enter the low condensing water temperature that adds entrance of boiler low, causes condensed water to have influence on the contrary the boiler actual temperature after again being back to boiler, causes heat-economy low; Simultaneously, its high dissolved oxygen amount also often is easy to cause the oxide etch speed aggravation of unit boiler, thereby affects greatly its actual life.

Summary of the invention

The purpose of this utility model provides a kind of Steam Turbine condenser simple in structure, and it can guarantee the low oxygen content of condensate water in the Effective Raise condensing water temperature, and condensation efficiency is high.

For achieving the above object, the utility model has adopted following technical scheme: a kind of Steam Turbine condenser, comprise housing and run through the inlet portion that is used for being communicated with the external refrigeration water route that housing arranges, it is characterized in that: described inlet portion is postponed to its inner chamber by the housing place and is consisted of water inlet pipe, offers on the water inlet pipe to run through the mouth spray that tube wall arranges.

The beneficial effects of the utility model are: after adopting said structure, demineralized water is after entering the condenser inlet portion, and directly the spray effect by water inlet pipe realizes atomizing, and the steam discharge of its atomized water and steam turbine is realized the mixed heat transfer of the temperature difference more afterwards.On the one hand, because the granularity of water reduces, thereby strengthened heat exchange area with turbine discharge, its condensation efficiency is high; On the other hand, because the water inlet pipe body is positioned at the higher condenser inner chamber place of temperature, the demineralized water that self-temperature is lower has tentatively been heated through water inlet pipe the time, finally via mouth spray ejection and and turbine discharge between behind the condensation by mixing, its condensed water water temperature is significantly improved, thereby guarantee its high heat-economy, in addition, the raising of condensate temperature has also directly improved the dissolved oxygen amount of condensate water, also just reached simultaneously the effect that reduces the pipeline oxygen corrosion, guarantee the service life of each parts, be conducive to improve the unit operation economy.

Description of drawings

Fig. 1 is that exterior line of the present utility model is arranged schematic diagram;

Fig. 2 is structural representation of the present utility model.

The specific embodiment

A kind of Steam Turbine condenser, comprise housing 10 and run through the inlet portion that is used for being communicated with the external refrigeration water route that housing 10 arranges, it is characterized in that: described inlet portion is postponed to its inner chamber by housing 10 places and is consisted of water inlet pipe 11, offers on the water inlet pipe 11 to run through the mouth spray 11a that tube wall arranges.

The concrete structure of such scheme can be with reference to shown in Fig. 1-2, like this, after demineralized water pumps into the condenser inlet portion by the desalination water pump, directly the spray effect by the mouth spray 11a on the water inlet pipe 11 realizes its atomizing purpose, the steam discharge of its atomized water and steam turbine is realized the mixed heat transfer of the temperature difference more afterwards, on the one hand, because the granularity of water reduces, thereby strengthened the heat exchange area with turbine discharge, its condensation efficiency is high; On the other hand, because water inlet pipe 11 bodys are positioned at the higher condenser inner chamber place of temperature, the demineralized water that self-temperature is lower has tentatively been heated through water inlet pipe 11 time, finally via mouth spray 11a ejection and and turbine discharge between behind the condensation by mixing, its condensed water water temperature is significantly improved, thereby satisfy the temperature requirement that melts down of steam turbine boiler, finally guarantee its high heat-economy; In addition, the raising of condensate temperature has also directly improved the dissolved oxygen amount of condensate water, has also just reached simultaneously the effect that reduces the pipeline oxygen corrosion, has guaranteed the service life of each parts, is conducive to improve the unit operation economy.

As further preferred version of the present utility model: described water inlet pipe 11 is more than two and is arranged in parallel side by side; Simultaneously, the mouth spray 11a on the described water inlet pipe 11 is atomizer, and described mouth spray 11a is a plurality of and along the uniform setting of water inlet pipe 11 pipe range directions.The utility model relies on a plurality of atomizers on the many water inlet pipes 11, thereby realize the rapid aerosol dispersion for demineralized water, has further guaranteed fully mixing fast between demineralized water and turbine discharge, is conducive to promote its condensation by mixing efficient.Certainly, particular location and the number of its water inlet pipe 11 and mouth spray 11a, be not certain foundation as shown in Figure 2 four water inlet pipes 11 and every water inlet pipe 11 on arrange the set-up mode of 17 atomizers, decided by the on-site situation of condenser kind and producer during actual the use, as long as can realize its atomizing spray and rapid mixing condensation effect, just give unnecessary details no longer one by one herein.

Claims

1. Steam Turbine condenser, comprise housing (10) and run through the inlet portion that is used for being communicated with the external refrigeration water route that housing (10) arranges, it is characterized in that: described inlet portion is located to postpone to its inner chamber by housing (10) and is consisted of water inlet pipe (11), offers on the water inlet pipe (11) and runs through the mouth spray (11a) that tube wall arranges.

2. Steam Turbine condenser according to claim 1, it is characterized in that: described water inlet pipe (11) is more than two and is arranged in parallel side by side.

3. Steam Turbine condenser according to claim 1 and 2, it is characterized in that: the mouth spray (11a) on the described water inlet pipe (11) is atomizer, and described mouth spray (11a) is a plurality of and along the uniform setting of water inlet pipe (11) pipe range direction.