CN212512526U

CN212512526U - Steam pocket water supply accident standby system

Info

Publication number: CN212512526U
Application number: CN202020836408.3U
Authority: CN
Inventors: 苏俊兵; 肖建平; 张绍武
Original assignee: Yangchun New Iron and Steel Co Ltd
Current assignee: Yangchun New Iron and Steel Co Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-02-09
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a steam pocket feedwater accident standby system, including steam pocket moisturizing pipeline and accident control pipeline, the output of accident control pipeline is connected with the input of steam pocket moisturizing pipeline, steam pocket moisturizing pipeline includes a plurality of manual moisturizing gate valves, stove seat flow control valve, manual stop valve and electric gate valve, and is a plurality of manual moisturizing gate valve, stove seat flow control valve, manual stop valve and the equal flange joint of electric gate valve are on steam pocket moisturizing pipeline, the accident control pipeline includes a plurality of manual gate valves of accident, accident electric gate valve and accident return circuit flow control valve, and is a plurality of the manual gate valve of accident, accident electric gate valve and the equal flange joint of accident return circuit flow control valve are on the accident control pipeline. The utility model discloses in having compensatied when appearing pipeline and pipeline annex trouble and electrical fault on the prior art, because of the processing time is not enough, must appear the production interrupt that the steel mill whole line accident stopped watering, be favorable to boiler vaporization system's stable production.

Description

Steam pocket water supply accident standby system

Technical Field

The utility model relates to a drum feedwater technical field especially relates to a drum feedwater accident standby system.

Background

The drum water supply system is a water supply device for a cooling system of a converter waste heat boiler and is mainly used for supplying water to a drum. In the smelting process of the converter, the water level of the steam drum can be continuously reduced due to evaporation and loss of saturated steam water, and the water is required to be supplemented to the steam drum through a water supply pipe system after the water level is reduced to a certain level; when the water level rises to the required water level, the water supply can be cut off through operation. If the water level is lowered and continuous water supply is not obtained, the converter oxygen lance can not be smelted due to the linkage of the water level, thereby causing production influence.

However, in the prior art, when a pipeline accessory fault occurs in the converter smelting process, for example: under the conditions that the regulating valve cannot be opened due to faults, water leakage occurs to pipeline accessories, pipe explosion occurs to the pipeline and the like, a normal operating system for steam drum water supplement is a set of integral system, and when one pipeline or pipeline accessory in the set of system fails or an electrical system fails, the operation in the original system cannot be operated normally; when faults are treated, the faults cannot be treated in a short time, the continuity and rhythm time of the production of the converters are strong, the fault of equipment cannot be treated in sufficient time, and finally, only the water supply system cannot be started, and only two converters can stop production simultaneously to cause accidents and stop casting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the water supply system can not be opened finally only because the failure of sufficient time processing equipment can not be given in the prior art, and providing a steam pocket water supply accident standby system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a reserve system of steam pocket feedwater accident, includes steam pocket moisturizing pipeline and accident control pipeline, the output of accident control pipeline is connected with the input of steam pocket moisturizing pipeline, the steam pocket moisturizing pipeline includes a plurality of manual moisturizing gate valves, stove base flow control valve, manual stop valve and electric gate valve, and is a plurality of manual moisturizing gate valve, stove base flow control valve, manual stop valve and the equal flange joint of electric gate valve are on the steam pocket moisturizing pipeline, the accident control pipeline includes a plurality of manual gate valves of accident, accident electric gate valve and accident return circuit flow control valve, and is a plurality of the equal flange joint of manual gate valve of accident, accident electric gate valve and accident return circuit flow control valve is on the accident control pipeline.

Preferably, it is a plurality of manual moisturizing gate valve includes first manual moisturizing gate valve, the manual moisturizing gate valve of second, the manual moisturizing gate valve of third, the manual moisturizing gate valve of fourth, the manual moisturizing gate valve of fifth, the manual moisturizing gate valve of sixth, the manual moisturizing gate valve of seventh, the manual moisturizing gate valve of eighth, the manual moisturizing gate valve of ninth, the manual moisturizing gate valve of tenth.

Preferably, the plurality of hearth flow regulating valves includes a first hearth flow regulating valve and a second hearth flow regulating valve.

Preferably, the plurality of manual cut-off valves includes a first manual cut-off valve and a second manual cut-off valve.

Preferably, the plurality of emergency power gate valves includes a first emergency power gate valve and a second emergency power gate valve.

Preferably, the plurality of emergency manual gate valves includes a first emergency manual gate valve, a second emergency manual gate valve, a third emergency manual gate valve and a fourth emergency manual gate valve.

Preferably, the plurality of fault loop flow control valves includes a first fault loop flow control valve, a second fault loop flow control valve and a third fault loop flow control valve.

Compared with the prior art, the utility model discloses a steam pocket water supply accident standby system possesses following beneficial effect:

1. the utility model adds a set of pipeline and valve set which can normally control the water supply of the steam pocket outside the original pipeline of the water supply system of the steam pocket, and is connected with the water supply pump set of the steam pocket and the water replenishing pipe of the steam pocket, and the opening and closing of the normal and standby systems are carried out by the manual operation valve set during the switching; when the original steam drum water supply system or the electric control circuit has faults, the quick switching during the online production can be realized, and the emergency water replenishing operation system is basically consistent with the operation mode of the original operation system;

2. the utility model discloses at the tight, strong enterprise of stove machine matching rigid connection of production rhythm, can effectually avoid because of the accident influence that steam pocket moisturizing pipeline and pipeline annex and electrical fault brought, provide sufficient moisturizing pipe system's fault handling time, improve steel mill's production stability and efficiency.

Drawings

Fig. 1 is a schematic view of a steam drum water supply accident standby system provided by the present invention;

FIG. 2 is a schematic diagram of a drum water supplement control original system in a drum water supply accident standby system provided by the utility model;

fig. 3 is a schematic diagram of a steam drum water supplement accident control standby system in the steam drum water supply accident standby system provided by the utility model.

In the figure: 1.1 first manual water replenishing gate valve, 1.2 second manual water replenishing gate valve, 1.3 third manual water replenishing gate valve, 1.4 fourth manual water replenishing gate valve, 1.5 fifth manual water replenishing gate valve, 1.6 sixth manual water replenishing gate valve, 1.7 first manual stop valve, 1.8 first hearth flow regulating valve, 1.9 seventh manual water replenishing gate valve, 1.10 eighth manual water replenishing gate valve, 1.11 second manual stop valve, 1.12 second hearth flow regulating valve, 1.13 ninth manual water replenishing gate valve, 1.14 tenth manual water replenishing gate valve, 2.1 first accident electric gate valve, 2.2 second accident electric gate valve, 2.3 first accident loop flow regulating valve, 2.4 first accident manual gate valve, 2.5 second accident manual gate valve, 2.6 second accident loop flow regulating valve, 2.7 third manual gate valve, 2.8 third accident loop flow regulating valve, 2.9 fourth accident manual gate valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a drum water supply accident standby system comprises a drum water replenishing pipeline 1 and an accident control pipeline 2, wherein an output end of the accident control pipeline 2 is connected with an input end of the drum water replenishing pipeline 1, the drum water replenishing pipeline 1 comprises a plurality of manual water replenishing gate valves, a furnace base flow regulating valve, a manual stop valve and an electric gate valve, and the plurality of manual water replenishing gate valves comprise a first manual water replenishing gate valve 1.1, a second manual water replenishing gate valve 1.2, a third manual water replenishing gate valve 1.3, a fourth manual water replenishing gate valve 1.4, a fifth manual water replenishing gate valve 1.5, a sixth manual water replenishing gate valve 1.6, a seventh manual water replenishing gate valve 1.9, an eighth manual water replenishing gate valve 1.10, a ninth manual water replenishing gate valve 1.13 and a tenth manual water replenishing gate valve 1.14;

in the embodiment, the plurality of furnace base flow regulating valves comprise a first furnace base flow regulating valve 1.8 and a second furnace base flow regulating valve 1.12, the plurality of manual stop valves comprise a first manual stop valve 1.7 and a second manual stop valve 1.11, and the plurality of manual water replenishing gate valves, the furnace base flow regulating valves, the manual stop valves and the electric gate valves are all connected to the steam drum water replenishing pipeline 1 in a flange mode;

in this embodiment, the accident control pipeline 2 includes a plurality of accident manual gate valves, an accident electric gate valve and an accident loop flow control valve, the plurality of accident electric gate valves include a first accident electric gate valve 2.1 and a second accident electric gate valve 2.2, and the plurality of accident manual gate valves include a first accident manual gate valve 2.4, a second accident manual gate valve 2.5, a third accident manual gate valve 2.7 and a fourth accident manual gate valve 2.9;

in this embodiment, a plurality of accident loop flow control valves include first accident loop flow control valve 2.3, second accident loop flow control valve 2.6 and third accident loop flow control valve 2.8, and a plurality of accident manual gate valves, accident electric gate valves and accident loop flow control valves are all flange-connected on accident control pipeline 2.

In this embodiment, when the normal circuit operates, the second accident electric gate valve 2.2 is closed, and the first accident electric gate valve 2.1 is closed; the first accident manual gate valve 2.4, the third accident return circuit flow control valve 2.8 normally close, the second accident manual gate valve 2.5, the fourth accident manual gate valve 2.9 normally open, when the corresponding furnace base steam pocket needs to be supplemented with water, the corresponding furnace base flow control valve (1.8 or 1.12) is opened, the valve opening is controlled according to the flow requirement, and the sixth manual water supplementing gate valve 1.6 and the ninth manual water supplementing gate valve 1.13 belong to a bypass and are generally in a normally closed state.

In this embodiment, when normal pipeline or pipeline annex broke down, because of unable short time recovery, need operating personnel to switch accident control circuit and satisfy the production demand, during the trouble, confirm first incident return circuit flow control valve 2.3 and third incident return circuit flow control valve 2.8 earlier and be in the closed condition, close valve second incident manual gate valve 2.5 and fourth incident manual gate valve 2.9, cut off normal return circuit, open first incident manual gate valve 2.4 and third incident return circuit flow control valve 2.8, later open second incident electric gate valve 2.2, close first incident electric gate valve 2.1 again, accomplish the switching of accident reserve pipeline promptly: the emergency system is on-line, while the original normal loop is off-line, and the system fault can be processed and checked. When the corresponding furnace base needs to be subjected to water supplementing operation, an operator can open the corresponding furnace base flow regulating valve according to the flow demand to control the flow to supplement water for the steam pocket, and the regulating valve is closed after the water supplement is finished.

In this embodiment, after the fault of the normal loop is cleared, the normal loop needs to be switched to for use again. Firstly, confirming that a sixth manual water replenishing gate valve 1.6 and a ninth manual water replenishing gate valve 1.13 in a normal pipeline are closed, and normally opening a fifth manual water replenishing gate valve 1.5 and an eighth manual water replenishing gate valve 1.10, a first manual stop valve 1.7 and a second manual stop valve 1.11; closing the first accident manual gate valve 2.4 and the third accident loop flow regulating valve 2.8, and closing the first accident loop flow regulating valve 2.3 and the second accident loop flow regulating valve 2.6; opening a second accident manual gate valve 2.5 and a fourth accident manual gate valve 2.9 which are newly added on the original water replenishing pipeline of the corresponding furnace base; and closing the second accident electric gate valve 2.2, and opening the first accident electric gate valve 2.1 on the normal loop, so that water supplement can be controlled through a flow regulating valve corresponding to a steam drum water supplement pipe on the original normal loop.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a steam pocket water supply accident standby system, includes steam pocket moisturizing pipeline (1) and accident control pipeline (2), its characterized in that: the output of accident control pipeline (2) is connected with the input of steam drum moisturizing pipeline (1), steam drum moisturizing pipeline (1) includes a plurality of manual moisturizing gate valves, stove base flow control valve, manual stop valve and electric gate valve, and is a plurality of manual moisturizing gate valve, stove base flow control valve, manual stop valve and the equal flange joint of electric gate valve are on steam drum moisturizing pipeline (1), accident control pipeline (2) includes a plurality of manual gate valves of accident, accident electric gate valve and accident return circuit flow control valve, and is a plurality of the equal flange joint of manual gate valve of accident, accident electric gate valve and accident return circuit flow control valve is on accident control pipeline (2).

2. A drum water supply accident backup system as claimed in claim 1, characterized in that: a plurality of manual moisturizing gate valve includes first manual moisturizing gate valve (1.1), second manual moisturizing gate valve (1.2), third manual moisturizing gate valve (1.3), fourth manual moisturizing gate valve (1.4), fifth manual moisturizing gate valve (1.5), sixth manual moisturizing gate valve (1.6), seventh manual moisturizing gate valve (1.9), eighth manual moisturizing gate valve (1.10), ninth manual moisturizing gate valve (1.13), tenth manual moisturizing gate valve (1.14).

3. A drum water supply accident backup system as claimed in claim 1, characterized in that: the furnace base flow regulating valves comprise a first furnace base flow regulating valve (1.8) and a second furnace base flow regulating valve (1.12).

4. A drum water supply accident backup system as claimed in claim 1, characterized in that: the manual stop valves comprise a first manual stop valve (1.7) and a second manual stop valve (1.11).

5. A drum water supply accident backup system as claimed in claim 1, characterized in that: the plurality of emergency power gate valves comprises a first emergency power gate valve (2.1) and a second emergency power gate valve (2.2).

6. A drum water supply accident backup system as claimed in claim 1, characterized in that: the plurality of emergency manual gate valves comprises a first emergency manual gate valve (2.4), a second emergency manual gate valve (2.5), a third emergency manual gate valve (2.7) and a fourth emergency manual gate valve (2.9).

7. A drum water supply accident backup system as claimed in claim 1, characterized in that: the plurality of emergency circuit flow regulating valves comprise a first emergency circuit flow regulating valve (2.3), a second emergency circuit flow regulating valve (2.6) and a third emergency circuit flow regulating valve (2.8).