CN216043911U

CN216043911U - Large saturated steam power generation steam supply system

Info

Publication number: CN216043911U
Application number: CN202122512775.5U
Authority: CN
Inventors: 张岩; 李慧敏; 孙航; 于华; 万丛; 郭振伟
Original assignee: Jinan Steel International Trade Co ltd
Current assignee: Jinan Steel International Trade Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-03-15
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a large saturated steam power generation steam supply system, which comprises a plurality of groups of steam sources, wherein outlets of the plurality of groups of steam sources are communicated with a second steam pipeline, and a plurality of second steam pipelines are communicated with inlets of branch cylinders. The utility model converts abundant intermittent and unstable saturated steam of iron and steel enterprises into stable and continuously output low-pressure saturated steam, and uses the low-pressure saturated steam for power generation, thereby not only ensuring the operation safety and the service life of the steam turbine generator unit, but also effectively utilizing residual heat and complementary energy and saving resources.

Description

Large saturated steam power generation steam supply system

Technical Field

The utility model relates to a power generation steam supply system, in particular to a large saturated steam power generation steam supply system.

Background

In iron and steel enterprises, various residual heat and energy resources are intensive, and the effective utilization of secondary energy is one of important means for energy conservation and consumption reduction. In the steelmaking process, waste heat in the production process of the converter is recovered by adopting a vaporization cooling mode to generate steam. Because the saturated steam that the vaporization cooling boiler produced is low in temperature, the water content is big, receives the restriction of converter periodic production simultaneously, and pressure, steam output fluctuation nature are big, if directly be used for steam turbine power generation to use, seriously influence the steam turbine life-span, cause energy loss and waste.

Disclosure of Invention

The utility model aims to provide a large saturated steam power generation steam supply system, which can combine a plurality of groups of steam sources with a steam-distributing cylinder, reduce the fluctuation of steam supply to a steam turbine when the steam of the plurality of groups of steam sources is combined in the steam-distributing cylinder, avoid influencing the service life of the steam turbine and improve the energy utilization efficiency. The utility model converts abundant intermittent and unstable saturated steam of iron and steel enterprises into stable and continuously output low-pressure saturated steam, and uses the low-pressure saturated steam for power generation, thereby not only ensuring the operation safety and the service life of the steam turbine generator unit, but also effectively utilizing residual heat and complementary energy and saving resources.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a large-scale saturated steam power generation supplies vapour system, including several steam source, the export of several steam source all communicates a second steam pipe way, several second steam pipe way all communicates with the import of steam-splitting cylinder, the export of steam-splitting cylinder communicates third steam pipe way, catch water is installed to the one end of third steam pipe way, third steam pipe way and catch water's import intercommunication, catch water's export intercommunication fourth steam pipe way, fourth steam pipe connection turbo generator unit, fourth steam pipe way and turbo generator unit's steam inlet cooperation.

In order to further realize the aim of the utility model, the technical scheme can also be adopted that the steam source comprises an evaporation cooling steam drum, a spherical energy accumulator and a softened water supplementing pipeline, one end of the softened water supplementing pipeline is communicated with a softened water inlet of the spherical energy accumulator, a supplemented water flow regulating valve is arranged on the softened water supplementing pipeline and can control the on-off of the softened water supplementing pipeline, an outlet of the evaporation cooling steam drum is communicated with a first steam pipeline, one end of the first steam pipeline is communicated with a steam inlet of the spherical energy accumulator, a steam outlet of the spherical energy accumulator is communicated with a second steam pipeline, a steam pressure regulating valve is arranged on the second steam pipeline, and the steam pressure regulating valve can control the flow rate of air flow in the second steam pipeline.

The steam-water separator comprises a second box body and a first box body, one side of the second box body is communicated with a third pipe, the third pipe is communicated with a third steam pipeline, the other side of the second box body is communicated with a fourth pipe, the middle of the second box body is connected with a metal partition plate, the metal partition plate is located between an outlet of the third pipe and an inlet of the fourth pipe, the metal partition plate divides the inner space of the second box body into an inverted U-shaped structure, a heater is arranged inside the metal partition plate, the fourth pipe is communicated with one side of the bottom of the first box body, the other side of the first box body is connected with the first pipe in an inserted mode, the first pipe penetrates through the side wall of the first box body, one end of the first box body is communicated with the longitudinal pipe, an upper opening of the longitudinal pipe is located on the upper portion of the inner side of the first box body, the bottom of the first box body is communicated with a first pneumatic drain valve, an inlet of the first pneumatic drain valve is communicated with the first box body, and a liquid level meter is installed on the side portion of the first box body.

The utility model has the advantages that: the utility model combines the plurality of groups of steam sources with the steam-distributing cylinder, and when the steam of the plurality of groups of steam sources can be combined in the steam-distributing cylinder, the fluctuation of the steam supplied to the steam turbine is reduced, the service life of the steam turbine is prevented from being influenced, and the energy utilization efficiency is improved. The utility model converts abundant intermittent and unstable saturated steam of iron and steel enterprises into stable and continuously output low-pressure saturated steam, and uses the low-pressure saturated steam for power generation, thereby not only ensuring the operation safety and the service life of the steam turbine generator unit, but also effectively utilizing residual heat and complementary energy and saving resources. The utility model collects and integrates the steam complementary energy generated by different vaporization cooling boilers of iron and steel enterprises, and the steam complementary energy is converted and then uniformly allocated and output, thereby being beneficial to the balanced utilization of steam in the whole plant, reducing the use of partial steam users for steam extraction in thermal power generation and improving the overall power generation efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1:

a large saturated steam power generation steam supply system comprises multiple groups of steam sources, wherein outlets of the multiple groups of steam sources are communicated with a second steam pipeline 5, the multiple second steam pipelines 5 are communicated with inlets of steam distributors 15, outlets of the steam distributors 15 are communicated with a third steam pipeline 16, one end of the third steam pipeline 16 is provided with a steam-water separator 17, the third steam pipeline 16 is communicated with an inlet of the steam-water separator 17, an outlet of the steam-water separator 17 is communicated with a fourth steam pipeline 18, the fourth steam pipeline 18 is connected with a steam turbine generator unit 19, and the fourth steam pipeline 18 is matched with a steam inlet of the steam turbine generator unit 19.

The utility model combines the plurality of groups of steam sources with the steam distributing cylinder 15, and when the steam of the plurality of groups of steam sources can be combined in the steam distributing cylinder 15, the fluctuation of the steam supplied to the steam turbine is reduced, the service life of the steam turbine is prevented from being influenced, and the energy utilization efficiency is improved. The utility model converts abundant intermittent and unstable saturated steam of iron and steel enterprises into stable and continuously output low-pressure saturated steam, and uses the low-pressure saturated steam for power generation, thereby not only ensuring the operation safety and the service life of the steam turbine generator unit, but also effectively utilizing residual heat and complementary energy and saving resources. The utility model collects and integrates the steam complementary energy generated by different vaporization cooling boilers of iron and steel enterprises, and the steam complementary energy is converted and then uniformly allocated and output, thereby being beneficial to the balanced utilization of steam in the whole plant, reducing the use of partial steam users for steam extraction in thermal power generation and improving the overall power generation efficiency.

Material selection and feasibility analysis of specific implementation of application range: the practical manufactured sample is implemented by taking the specification attached drawing as a drawing according to the proportion and the matching mode of each part in the specification attached drawing, the connection is a common connection mode such as a connection of a strong adhesive, a welding, riveting and a flange connection and an integral forming type connection, and the thickness and the strength of a corresponding connection mode connection point can be selected without creativity according to the requirement of practical connection strength during practical manufacturing.

Example 2:

a large saturated steam power generation steam supply system comprises multiple groups of steam sources, wherein outlets of the multiple groups of steam sources are communicated with a second steam pipeline 5, the multiple second steam pipelines 5 are communicated with inlets of steam distributors 15, outlets of the steam distributors 15 are communicated with a third steam pipeline 16, one end of the third steam pipeline 16 is provided with a steam-water separator 17, the third steam pipeline 16 is communicated with an inlet of the steam-water separator 17, an outlet of the steam-water separator 17 is communicated with a fourth steam pipeline 18, the fourth steam pipeline 18 is connected with a steam turbine generator unit 19, and the fourth steam pipeline 18 is matched with a steam inlet of the steam turbine generator unit 19. The steam source includes evaporation cooling steam pocket 1, spherical energy storage ware 3, softened water moisturizing pipeline 6's one end and spherical energy storage ware 3's softened water import intercommunication, set up moisturizing flow control valve 7 on the softened water moisturizing pipeline 6, moisturizing flow control valve 7 can control the break-make of softened water moisturizing pipeline 6, evaporation cooling steam pocket 1's export intercommunication first steam line 2, the one end of first steam line 2 and spherical energy storage ware 3's steam inlet intercommunication, spherical energy storage ware 3's steam outlet intercommunication second steam line 5, set up steam pressure regulating valve 4 on the second steam line 5, steam pressure regulating valve 4 can control the inside air flow size of second steam line 5.

The spherical accumulator 3 of the utility model is able to accumulate steam and deliver it into the second steam line 5.

Example 3:

a large saturated steam power generation steam supply system comprises multiple groups of steam sources, wherein outlets of the multiple groups of steam sources are communicated with a second steam pipeline 5, the multiple second steam pipelines 5 are communicated with inlets of steam distributors 15, outlets of the steam distributors 15 are communicated with a third steam pipeline 16, one end of the third steam pipeline 16 is provided with a steam-water separator 17, the third steam pipeline 16 is communicated with an inlet of the steam-water separator 17, an outlet of the steam-water separator 17 is communicated with a fourth steam pipeline 18, the fourth steam pipeline 18 is connected with a steam turbine generator unit 19, and the fourth steam pipeline 18 is matched with a steam inlet of the steam turbine generator unit 19. The steam-water separator 17 comprises a second box body 25 and a first box body 21, wherein one side of the second box body 25 is communicated with a third pipe 28, the third pipe 28 is communicated with a third steam pipeline 16, the other side of the second box body 25 is communicated with a fourth pipe 29, the middle part of the second box body 25 is connected with a metal partition plate 26, the metal partition plate 26 is positioned between an outlet of the third pipe 28 and an inlet of the fourth pipe 29, the metal partition plate 26 divides the inner space of the second box body 25 into an inverted U-shaped structure, a heater 27 is arranged inside the metal partition plate 26, the fourth pipe 29 is communicated with one side of the bottom of the first box body 21, the other side of the first box body 21 is inserted with a first pipe 23, the first pipe 23 penetrates through the side wall of the first box body 21, one end of the first box body 21 is communicated with the longitudinal pipe 22, the upper opening of the longitudinal pipe 22 is positioned at the upper part of the inner side of the first box body 21, the bottom of the first box body 21 is communicated with a first pneumatic trap 30, the inlet of the first pneumatic trap 30 is communicated with the first box body 21, a liquid level meter 24 is installed at a side of the first tank 21.

Publication No.: CN201684497U discloses a cylindrical steam-water separator, which is found in application that the steam-water separator has a poor steam-water separation effect, and there are still more liquid drops in the outlet that are not converted into steam. According to the utility model, through the combination of the second box 25, the metal partition 26, the heater 27, the third pipe 28 and the fourth pipe 29, before the steam of the first box 21 enters, on one hand, the metal partition 26 is blocked between the third pipe 28 and the fourth pipe 29, so that the liquid drops with larger mass in the third pipe 28 are directly blocked, the steam can enter the first box 21 through the U-shaped space and the fourth pipe 29, so that the liquid entering the airflow in the first box 21 is reduced, on the other hand, the temperature of the metal partition 26 is raised by the heater 27, and after the liquid drops are blocked by the metal partition 26, the steam quantity can be improved by partial gas. The bottom of the second tank 25 communicates with a second pneumatic trap 31.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention.

Claims

1. The utility model provides a large-scale saturated steam power generation steam supply system which characterized in that: including the several steam sources, the export of several steam sources all communicates a second steam pipe way (5), several second steam pipe way (5) all communicate with the import of steam-splitting cylinder (15), the export intercommunication third steam pipe way (16) of steam-splitting cylinder (15), catch water (17) are installed to the one end of third steam pipe way (16), the import intercommunication of third steam pipe way (16) and catch water (17), the export intercommunication fourth steam pipe way (18) of catch water (17), turbo generator set (19) are connected to fourth steam pipe way (18), fourth steam pipe way (18) cooperate with the steam inlet of turbo generator set (19).

2. A large saturated steam power generation steam supply system according to claim 1, characterized in that: the steam source includes evaporation cooling steam pocket (1), spherical energy storage ware (3), demineralized water moisturizing pipeline (6), the one end of demineralized water moisturizing pipeline (6) and the demineralized water import intercommunication of spherical energy storage ware (3), set up moisturizing flow control valve (7) on demineralized water moisturizing pipeline (6), the break-make of demineralized water moisturizing pipeline (6) can be controlled in moisturizing flow control valve (7), the export of evaporation cooling steam pocket (1) communicates first steam pipe way (2), the one end of first steam pipe way (2) and the steam inlet intercommunication of spherical energy storage ware (3), the steam outlet of spherical energy storage ware (3) communicates second steam pipe way (5), set up steam pressure governing valve (4) on second steam pipe way (5), steam pressure governing valve (4) can control the inside air flow size of second steam pipe way (5).

3. A large saturated steam power generation steam supply system according to claim 1, characterized in that: the steam-water separator (17) comprises a second box body (25) and a first box body (21), one side of the second box body (25) is communicated with a third pipe (28), the third pipe (28) is communicated with a third steam pipeline (16), the other side of the second box body (25) is communicated with a fourth pipe (29), the middle part of the second box body (25) is connected with a metal partition plate (26), the metal partition plate (26) is positioned between an outlet of the third pipe (28) and an inlet of the fourth pipe (29), the metal partition plate (26) divides the inner space of the second box body (25) into an inverted U-shaped structure, a heater (27) is arranged inside the metal partition plate (26), the fourth pipe (29) is communicated with one side of the bottom of the first box body (21), the other side of the first box body (21) is inserted with a first pipe (23), the first pipe (23) penetrates through the side wall of the first box body (21), one end of the first box body (21) is communicated with a longitudinal pipe (22), the upper opening of the longitudinal pipe (22) is positioned at the upper part of the inner side of the first box body (21), the bottom of the first box body (21) is communicated with a first pneumatic drain valve (30), the inlet of the first pneumatic drain valve (30) is communicated with the first box body (21), and a liquid level meter (24) is arranged on the side part of the first box body (21).