CN220184161U - Continuous casting secondary cooling water tank device for preventing freezing accident in winter - Google Patents
Continuous casting secondary cooling water tank device for preventing freezing accident in winter Download PDFInfo
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- CN220184161U CN220184161U CN202321663939.7U CN202321663939U CN220184161U CN 220184161 U CN220184161 U CN 220184161U CN 202321663939 U CN202321663939 U CN 202321663939U CN 220184161 U CN220184161 U CN 220184161U
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- valve
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 28
- 239000000498 cooling water Substances 0.000 title claims abstract description 16
- 238000007710 freezing Methods 0.000 title description 5
- 230000008014 freezing Effects 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 191
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The utility model provides a continuous casting secondary cooling water winterized accident water tank device, wherein the upper ends of an upper water pipe and a lower water pipe are communicated with an accident water tank; the upper end of the first branch is communicated with the lower end of the water supply pipe and the lower end of the water supply pipe, and the lower end of the first branch is communicated with the main pipeline through a water supply valve; the upper end of the second branch is communicated with the lower end of the upper and lower water pipes, and the lower end of the second branch is communicated with the main pipeline through a water drain valve and a check valve in sequence; one end of the third branch is communicated with a part of the second branch, which is positioned between the drain valve and the check valve, and the other end of the third branch is communicated with a slag flushing ditch or a closed recovery pipeline of the crystallizer through a drain valve. The continuous casting secondary cooling water winterization accident water tank device provided by the utility model realizes that water in the accident water tank and in the water supply and drainage pipes is always in a flowing state, and is not easy to freeze in winter.
Description
Technical Field
The utility model relates to the technical field of continuous casting secondary cooling water accident water tanks, in particular to a continuous casting secondary cooling water winter anti-freezing accident water tank device.
Background
The continuous casting accident water system is a measure for ensuring safe water supply when the continuous casting production process is abnormal. When the continuous casting machine is used for production, if the water treatment is carried out, sudden pump stopping accidents occur, the serious accidents such as explosion of a crystallizer, equipment damage, steel leakage and the like are extremely easy to occur, and therefore, the safety water supply measures are necessary to be adopted.
As shown in FIG. 1, the conventional continuous casting accident water system adopts an accident water tank 1 ' arranged at a high position, the upper end of an accident water supply pipe 2 ' is communicated with the accident water tank 1 ', the lower end of the accident water supply pipe is communicated with a main pipeline 4 ' through a pneumatic water supply valve 3 ', the upper end of an accident water supply pipe 5 ' is communicated with the accident water tank 1 ', the lower end of the accident water supply pipe is communicated with the main pipeline 4 ' through a pneumatic water supply valve 6 ' and a check valve 7 ', the main pipeline 4 ' is communicated with a continuous casting machine, and the accident water tank 1 ' is provided with a liquid level meter 8 ' for detecting the water level.
The liquid level meter 8 ' checks the water level of the accident water tank 1 ', when the liquid level of the accident water tank 1 ' is lower than a set minimum value, the pneumatic water feeding valve 3 ' is opened to feed water to the accident water tank, when the water level in the accident water tank 1 ' reaches a set maximum value, the pneumatic water feeding valve 3 ' is closed, and the pneumatic water discharging valve 6 ' is a normally closed valve. When an accident occurs, the pressure in the main pipeline 4 ' is reduced and is lower than a set value, the pneumatic drain valve 6 ' is opened, and water in the accident water tank 1 ' passes through the pneumatic drain valve 6 ' and the check valve 7 ' (due to the pressure reduction in the main pipeline and the opening of the check valve 7 ') by gravity and enters the main pipeline 4 ', so that water is fed to the continuous casting machine.
Enters the main water supply pipeline to play a role in emergency cooling of accidents.
In the design principle, the scheme can ensure normal operation, but in the actual operation process, as the temperature in winter in the north can reach minus 30 ℃ to minus 20 ℃, the electric heating device is usually adopted outside the accident water supply pipe 2 'and the accident water discharge pipe 5' to keep the temperature, and as the pipeline extends from the zero meter ground to the high house cover with the height of more than 50m, most of the pipeline is suspended in the high air, the electric heat preservation is problematic, the inspection and the treatment are very difficult, the water in the pipeline is easily frozen into ice, and the accident function is invalid. And because the device is too high, the cost of using an electric heating device is too high.
Therefore, a new device is needed to effectively avoid the problem of freezing the accident water tank and the pipeline.
Disclosure of Invention
According to the technical problems, the continuous casting secondary cooling water tank device for preventing freezing accidents in winter is provided.
The utility model adopts the following technical means:
the continuous casting secondary cooling water winterized accident water tank device comprises an accident water tank, a main pipeline, a liquid level meter for detecting the water level in the accident water tank and an upper water pipe and a lower water pipe, wherein the upper ends of the upper water pipe and the lower water pipe are communicated with the accident water tank; the upper end of the first branch is communicated with the lower end of the water supply pipe and the lower end of the water supply pipe, and the lower end of the first branch is communicated with the main pipeline through a water supply valve; the upper end of the second branch is communicated with the lower end of the upper and lower water pipes, and the lower end of the second branch is communicated with the main pipeline through a water drain valve and a check valve in sequence; one end of the third branch is communicated with a part of the second branch, which is positioned between the drain valve and the check valve, and the other end of the third branch is communicated with a slag flushing ditch or a closed recovery pipeline of the crystallizer through a drain valve;
the water draining valve and the water draining valve are normally open valves, the water feeding valve is a normally closed valve, and when the detection value of the liquid level meter is lower than the low liquid level set value, the water feeding valve is opened, the main pipeline is filled with water to the accident water tank, and when the detection value of the liquid level meter is higher than the high liquid level set value, the water feeding valve is closed.
Preferably, the pipe diameters of the water supply pipe, the water drain pipe, the first branch pipe and the second branch pipe are the same, and the pipe diameter of the third branch pipe is smaller than the pipe diameter of the water supply pipe and the water drain pipe.
Preferably, the pipe diameters of the water supply pipe, the water drain pipe, the first branch pipe and the second branch pipe are 100-200 mm, and the pipe diameter of the third branch pipe is 20-50 mm.
Preferably, the water pressure in the main pipeline is 1.0-1.2 MPa, and the water pressure in the accident water tank is 0.53-0.57 MPa.
Preferably, the water supply valve and the water drain valve are pneumatic valves.
And a heat preservation device is arranged at the part between the connection part of the second branch and the third branch and the main pipeline.
The use state is as follows: when no accident occurs in the normal production process of the continuous casting machine, the pressure in the main pipeline is in a normal state, the check valve is not blocked, and the water in the accident water tank can only enter the third branch, namely the water in the accident water tank enters the slag flushing ditch or the closed recovery pipeline of the crystallizer by the accident water tank, the water supply and drainage pipe, the water drain valve and the water drain valve under the self weight. When the water level in the accident water tank is reduced to a low liquid level set value, the water feeding valve is opened, water in the main pipeline flows into the accident water feeding and discharging pipe through the first branch, then enters the accident water tank to supplement water for the accident water tank, no water flows down in the third branch, when the liquid level meter detects that the water in the accident water tank is supplemented to the high liquid level set value, the water feeding valve is closed, and at the moment, the water in the accident water tank reenters the slag flushing ditch or the closed recovery pipeline of the crystallizer through the water feeding and discharging pipe, and the water in the water feeding and discharging pipe is always in a flowing state, so that the freezing phenomenon cannot occur
When the continuous casting machine has an accident, the pressure in the main pipeline is reduced, the check valve is opened, water in the accident water tank directly enters the main pipeline through the second branch, then enters the continuous casting machine, and water is supplied to the continuous casting machine, and the water discharge valve is selectively closed or not closed because the pipe diameter of the third branch is small.
Compared with the prior art, the utility model has the following advantages:
1. the continuous casting secondary cooling water winterization accident water tank device provided by the utility model realizes that water in the accident water tank and in the water supply and drainage pipes is always in a flowing state, and is not easy to freeze in winter.
2. The long and high pipeline of the water supply pipe and the water drain pipe does not need to be insulated by an insulation device, so that the cost is reduced.
Based on the reasons, the utility model can be widely popularized in the fields of accident water tanks and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a conventional continuous casting accident water system in the background of the utility model.
Fig. 2 is a schematic structural diagram of a continuous casting secondary cooling water winterized accident water tank device in the specific embodiment of the utility model.
In fig. 1: 1', accident water tank; 2', accident water supply pipe; 3', pneumatic water feeding valve; 4', a main pipeline; 5', accident sewer pipe; 6', pneumatic water draining valve; 7', check valve; 8', a liquid level meter.
In fig. 2: 1. an accident water tank; 2. a main pipeline; 3. a liquid level gauge 3; 4. an upper water pipe and a lower water pipe; 5. a first branch; 6. a water feeding valve; 7. a second branch; 8. a water drain valve; 9. a check valve; 10. a third branch; 11. and (3) a drainage valve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
As shown in fig. 2, the continuous casting secondary cooling water winterized accident water tank device comprises an accident water tank 1, a main pipeline 2, a liquid level meter 3 for detecting the water level in the accident water tank, and an upper water pipe and a lower water pipe 4, wherein the upper end of the upper water pipe and the lower water pipe 4 are communicated with the accident water tank 1; the upper end of the first branch 5 is communicated with the lower end of the water supply and drainage pipe 1, and the lower end is communicated with the main pipeline 2 through a water supply valve 6; the upper end of the second branch 7 is communicated with the lower end of the water supply and drain pipe 4, and the lower end is communicated with the main pipeline 2 through a drain valve 8 and a check valve 9 in sequence; one end of the third branch 10 is communicated with a part of the second branch 7 between the drain valve 8 and the check valve 9, and the other end is communicated with a slag flushing ditch or a closed recovery pipeline of the crystallizer through a drain valve 11; the water feeding valve 6 and the water discharging valve 8 are pneumatic valves.
The water drain valve 8 and the water drain valve 11 are normally open valves, the water supply valve 6 is a normally closed valve, and when the detection value of the liquid level meter 3 is lower than the low liquid level set value, the water supply valve 6 is opened, the main pipeline 2 is filled with water to the accident water tank 1, and when the detection value of the liquid level meter 3 is higher than the high liquid level set value, the water supply valve 6 is closed.
The pipe diameters of the water supply and drainage pipe 4, the first branch pipe 5 and the second branch pipe 7 are 100-200 mm, and the pipe diameter of the third branch pipe 10 is 20-50 mm smaller than the pipe diameter of the water supply and drainage pipe 4. The length of the water supply and drain pipe 4 is 30-60 m, the length of the first branch 5 is 10-20 m, the vertical distance between the second branch 7 and the third branch 10 is 5-15 m, and the distance between the joint of the third branch 10 and the second branch and the main pipeline 2 (the height of the main pipeline 2 is zero meter ground) is 2-5 m. The second branch 7 is usually disposed indoors, so that no heating device is added to the outer surface of the second branch 7, and the portion between the connection portion of the second branch 7 and the third branch 10 and the main pipeline 2 is exposed outdoors, so that the heat insulation device is still remained, but the pipeline is shorter and lower, so that the cost is low.
The water pressure in the main pipeline is 1.0-1.2 MPa, and the water pressure in the accident water tank is 0.53-0.57 MPa.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The continuous casting secondary cooling water winterized accident water tank device includes an accident water tank, a main pipeline, a liquid level meter for detecting the water level in the accident water tank, and is characterized by also comprising a water supply pipe and a water drain pipe, wherein the upper ends of the water supply pipe and the water drain pipe are communicated with the accident water tank; the upper end of the first branch is communicated with the lower end of the water supply pipe and the lower end of the water supply pipe, and the lower end of the first branch is communicated with the main pipeline through a water supply valve; the upper end of the second branch is communicated with the lower end of the upper and lower water pipes, and the lower end of the second branch is communicated with the main pipeline through a water drain valve and a check valve in sequence; one end of the third branch is communicated with a part of the second branch, which is positioned between the drain valve and the check valve, and the other end of the third branch is communicated with a slag flushing ditch or a closed recovery pipeline of the crystallizer through a drain valve;
the water draining valve and the water draining valve are normally open valves, the water feeding valve is a normally closed valve, and when the detection value of the liquid level meter is lower than the low liquid level set value, the water feeding valve is opened, the main pipeline is filled with water to the accident water tank, and when the detection value of the liquid level meter is higher than the high liquid level set value, the water feeding valve is closed.
2. The continuous casting secondary cooling water winterization accident water tank device according to claim 1, wherein the pipe diameters of the upper and lower water pipes, the first branch and the second branch are the same, and the pipe diameter of the third branch is smaller than the pipe diameter of the upper and lower water pipes.
3. The continuous casting secondary cooling water winterization accident water tank device according to claim 2, wherein the pipe diameters of the upper water pipe, the lower water pipe, the first branch and the second branch are 100-200 mm, and the pipe diameter of the third branch is 20-50 mm.
4. The continuous casting secondary cooling water winterized accident water tank set as claimed in claim 1, wherein the water pressure in the main pipeline is 1.0-1.2 MPa and the water pressure in the accident water tank is 0.53-0.57 MPa.
5. The continuous casting second-cold water winterized water tank arrangement of claim 1 wherein said water supply valve and said water drain valve are both pneumatic valves.
6. A continuous casting secondary cooling water winterized water tank arrangement as defined in claim 1 or 2, characterized in that said second branch has heat insulating means at the connection with said third branch to the portion between said main pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321663939.7U CN220184161U (en) | 2023-06-28 | 2023-06-28 | Continuous casting secondary cooling water tank device for preventing freezing accident in winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321663939.7U CN220184161U (en) | 2023-06-28 | 2023-06-28 | Continuous casting secondary cooling water tank device for preventing freezing accident in winter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220184161U true CN220184161U (en) | 2023-12-15 |
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ID=89108847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321663939.7U Active CN220184161U (en) | 2023-06-28 | 2023-06-28 | Continuous casting secondary cooling water tank device for preventing freezing accident in winter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220184161U (en) |
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2023
- 2023-06-28 CN CN202321663939.7U patent/CN220184161U/en active Active
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