CN111121479A

CN111121479A - Steam condenser of steam turbine set

Info

Publication number: CN111121479A
Application number: CN202010046473.0A
Authority: CN
Inventors: 王宜翠; 周俊
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-08

Abstract

The invention discloses a steam turbine set condenser, which comprises an outer shell, wherein end covers are fixedly arranged at two ends of the outer shell, a cooling water inlet and a cooling water outlet are formed in the left end cover, a plurality of steam condensing pipes are fixedly arranged in the outer shell, a steam inlet and a condensed water outlet are respectively formed in the top and the bottom of the outer shell, the condensed water outlet is connected with a condensing pipe, a plurality of radiating fins are sequentially sleeved on the outer wall of the condensing pipe, the condensing pipe is communicated with a water storage tank through a guide pipe, a water pump is arranged at the bottom of an inner cavity of the water storage tank, a water outlet pipe is fixedly arranged at the output end of the water pump, a plurality of atomizing nozzles are arranged on the water outlet pipe, and an exhaust outlet is also formed in the bottom of the outer: the circulating water condensing system can help high-temperature steam to be condensed quickly, the efficiency is higher, and the circulating water condensing system formed by the circulating water condensing system has the effect of saving resources.

Description

Steam condenser of steam turbine set

Technical Field

The invention relates to the technical field of steam turbine condenser equipment, in particular to a steam turbine set condenser.

Background

Steam is a working medium of the steam turbine, and in the steam circulation flow of the steam turbine unit, the steam discharged by the steam turbine needs to be condensed into water, cooled to a required temperature and then subjected to fine treatment. It can be seen that the steam circulation flow of the steam turbine set comprises the working procedures of condensation, cooling, fine treatment and the like.

The condenser serves as an important component of the steam turbine unit and serves to condense the exhaust steam of the steam turbine into water in a heat-exchanging manner. The existing condenser only has the function of condensing the exhaust steam of the steam turbine into water and does not have the function of cooling the condensed water, so that the condensed water discharged by the condenser cannot be directly discharged into a hydrophobic finish treatment system because the temperature does not reach the standard, and the condensed water can be discharged into the hydrophobic finish treatment system only after being cooled to the required temperature range by virtue of the middle hydrophobic cooler. That is, based on the condensation, cooling, and fine processing steps included in the steam circulation process of the steam turbine set, corresponding to the condensation, cooling, and fine processing steps, the steam turbine set needs to be provided with a condenser, a drain cooler, a drain fine processing system, and other devices corresponding to the steam circulation process steps, which are especially the most common in high back pressure steam turbine sets, specifically, in order to achieve energy saving and consumption reduction of the power plant and increase economic benefits, the condenser is usually used as the return water heating of the heat supply network, that is, the condenser heats the hot water in the heat supply network to a predetermined temperature by using the exhaust steam discharged by the steam turbine, thereby achieving the technical purpose of recycling the waste heat of the exhaust steam discharged by the steam turbine; undoubtedly, the temperature of the condensed water condensed by the condenser is high, and the technical requirements of the hydrophobic fine treatment system cannot be met, and a hydrophobic cooler is inevitably required to be arranged between the condenser and the hydrophobic fine treatment system, so that the condensed water is cooled and cooled according to the technical requirements before entering the hydrophobic fine treatment system.

Although the technology for cooling and treating the condensed water in the condenser by means of the middle hydrophobic cooler can enable the cooled hydrophobic water to effectively meet the technical requirements of a hydrophobic fine treatment system, the cooling water technology in the prior art still has a plurality of defects, for example, the cooled condensed water is not continuously utilized, and resources are greatly wasted.

The condenser designed by the invention not only can be well utilized, but also can utilize the cooled condensed water to help the condenser to achieve a better condensation effect.

Disclosure of Invention

The invention aims to provide a steam condenser of a steam turbine set to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a steam condenser of a steam turbine set comprises an outer shell, wherein end covers are fixedly arranged at two ends of the outer shell, wherein the left end cover is provided with a cooling water inlet and a cooling water outlet, a plurality of steam condensing pipes are fixedly arranged inside the outer shell, the plurality of steam condensing pipes are fixedly arranged on the inner wall of the outer shell through a fixing plate, the top and the bottom of the outer shell are respectively provided with a steam inlet and a condensed water outlet, the condensed water outlet is connected with a plurality of condensing pipes, the outer wall of the condensing pipe is sequentially sleeved with a plurality of radiating fins, the condensing pipe is communicated with the water storage tank through a guide pipe, the bottom of the inner cavity of the water storage tank is provided with a water pump, the output end of the water pump is fixedly provided with a water outlet pipe, the electromagnetic type steam generator is arranged on the water outlet pipe, the water outlet pipe is provided with a plurality of atomizing nozzles, the atomizing nozzles are positioned at a steam inlet, and the bottom of the outer shell is also provided with an exhaust outlet.

Preferably, the tail end of the water outlet pipe penetrates through the steam inlet, and the atomizing nozzle is located inside the steam inlet.

Preferably, the plurality of the radiating fins are arranged at equal intervals, and the plurality of the radiating fins and the condenser pipe are combined to form a condenser for cooling condensed water.

Preferably, the exhaust outlet is also provided with an exhaust invention, and the exhaust invention is a one-way exhaust invention and can only go out but not go in.

Preferably, the shell body is of a double-layer structure, the interlayer of the shell body is further connected with the water outlet pipe, the interlayer of the shell body is further provided with a water outlet pipe, and the water outlet pipe is located above the water storage tank and forms a circulating water condensation system with the water outlet pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the circulating water condensing system and the atomizing spray head formed by the invention can better play the roles of condensing and cooling, can help high-temperature steam to be condensed quickly, and have higher efficiency;

2. the condensed water can be quickly cooled and utilized, and the circulating water condensing system formed by the invention has the effect of saving resources.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a sectional view of the structure of the present invention.

In the figure: 1. the device comprises an outer shell, an end cover 2, a cooling water inlet 3, a cooling water outlet 4, a steam condensation pipe 5, a fixing plate 6, a steam inlet 7, a condensed water outlet 8, a condensation pipe 9, cooling fins 10, a water storage tank 11, a water pump 12, a water outlet pipe 13, an electromagnetic device 14, an atomizing nozzle 15, an exhaust outlet 16 and a drain pipe 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a steam turbine set condenser comprises an outer shell 1, wherein end covers 2 are fixedly arranged at two ends of the outer shell 1, a cooling water inlet 3 and a cooling water outlet 4 are arranged on a left end cover 2, a plurality of steam condensing pipes 5 are fixedly arranged inside the outer shell 1, the steam condensing pipes are fixedly arranged on the inner wall of the outer shell 1 through fixing plates 6, a steam inlet 7 and a condensed water outlet 8 are respectively arranged at the top and the bottom of the outer shell 1, the condensed water outlet 8 is connected with a plurality of condensing pipes 9, a plurality of radiating fins 10 are sequentially sleeved on the outer wall of each condensing pipe 9, each condensing pipe 9 is communicated with a water storage tank 11 through a guide pipe, a water pump 12 is arranged at the bottom of an inner cavity of each water storage tank 11, a water outlet pipe 13 is fixedly arranged at the output end of each water pump 12, an electromagnetic generator 14 is arranged on each water outlet pipe 13, and a plurality, the atomizing nozzle 15 is located at the steam inlet 7, and the bottom of the outer shell 1 is further provided with an exhaust outlet 16.

It is worth noting, the end of outlet pipe 13 runs through steam inlet 7, just atomizer 15 is located steam inlet 7's inside, and the comdenstion water after the cooling through the condensation is contacted by the steam in atomizer 15 blowout and the shell body 1, the effect of playing the condensation and cooling that can be better, can help high temperature steam to condense fast, and efficiency is higher.

It is worth noting that the plurality of the radiating fins 10 are arranged at equal intervals, the plurality of the radiating fins 10 and the condensing pipe 9 are combined to form a condenser for cooling condensed water, and the condenser formed by the radiating fins 10 and the condensing pipe 9 can achieve the effect of quickly cooling the condensed water with higher temperature, so that the circulating effect of condensing and condensing is achieved by matching with the water storage tank 11 behind.

It should be noted that the exhaust outlet 16 is further provided with an exhaust invention, which is a unidirectional exhaust invention, and the unidirectional exhaust invention can be automatically closed by a switch.

It is worth noting that the outer shell 1 is a double-layer structure, the interlayer of the outer shell 1 is connected with the water outlet pipe 13, the interlayer of the outer shell 1 is provided with the water outlet pipe 17, the water outlet pipe 17 is arranged above the water storage tank 13 and forms a circulating water condensation system with the water outlet pipe 13, the outer shell with a double-layer design can better perform a rapid condensation effect on high-temperature steam inside the outer shell, and the formed circulating water condensation system achieves a resource saving effect.

When the invention works, when high-temperature steam enters the inner part of the outer shell 1 from the steam inlet 7, then air in the outer shell 1 is exhausted, then the one-way exhaust invention is closed, the high-temperature steam meets a steam condensing pipe and begins to condense into condensed water, the condensed water falls at the condensed water outlet 8, then the condensed water is rapidly cooled by a condenser consisting of the radiating fins 10 and the condensing pipe 9, then the condensed water is discharged into the water storage tank 11 and is pressed out by the water pump 12 in the water storage tank 11, and finally the condensed water is pumped into the interlayer of the atomizing nozzle 15 and the outer shell 1 through the water outlet pipe 13, the atomizing nozzle 15 atomizes the condensed water to be contacted with the high-temperature steam, the water mist not only increases the contact area with the high-temperature steam and can play a role of collecting the steam, the high-temperature steam is helped to condense into the condensed water more rapidly, not only saves resources, but also can help the outer shell 1 to be cooled down quickly, thus being beneficial to the condensation of high-temperature steam.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a turbine unit condenser, includes shell body (1), the equal fixed mounting end cover in both ends (2) of shell body (1), wherein be provided with cooling water inlet (3) and cooling water outlet (4) on left end cover (2), its characterized in that: the steam condenser is characterized in that a plurality of steam condensing pipes (5) are fixedly installed inside the outer shell (1), the steam condensing pipes are fixedly installed on the inner wall of the outer shell (1) through fixing plates (6), a steam inlet (7) and a condensed water outlet (8) are respectively formed in the top and the bottom of the outer shell (1), the condensed water outlet (8) is connected with a plurality of condensing pipes (9), a plurality of radiating fins (10) are sequentially sleeved on the outer wall of each condensing pipe (9), each condensing pipe (9) is communicated with a water storage tank (11) through a guide pipe, a water pump (12) is arranged at the bottom of an inner cavity of each water storage tank (11), a water outlet pipe (13) is fixedly installed at the output end of each water pump (12), an electromagnetic device (14) is arranged on each water outlet pipe (13), a plurality of atomizing nozzles (15) are arranged on each water outlet pipe (13), and each atomizing nozzle (15, the bottom of the outer shell (1) is also provided with an exhaust outlet (16).

2. The turbine unit condenser of claim 1, wherein: the tail end of the water outlet pipe (13) penetrates through the steam inlet (7), and the atomizing nozzle (15) is located inside the steam inlet (7).

3. The turbine unit condenser of claim 1, wherein: the several fin (10) set up for the equidistance, and the several fin (10) and condenser pipe (9) combination constitute the condenser that is used for cooling the condensate water.

4. The turbine unit condenser of claim 1, wherein: the exhaust outlet (16) is also provided with an exhaust invention, and the exhaust invention is a one-way exhaust invention and only can not enter or exit.

5. The turbine unit condenser of claim 1, wherein: the shell body (1) is of a double-layer structure, an interlayer of the shell body (1) is further connected with the water outlet pipe (13), a drain pipe (17) is further arranged on the interlayer of the shell body (1), and the drain pipe (17) is located above the water storage tank (13) and forms a circulating water condensation system with the water outlet pipe (13).