CN219797612U - Closed circulation cooling water system freeze-proof device of thermal power factory - Google Patents
Closed circulation cooling water system freeze-proof device of thermal power factory Download PDFInfo
- Publication number
- CN219797612U CN219797612U CN202321112023.2U CN202321112023U CN219797612U CN 219797612 U CN219797612 U CN 219797612U CN 202321112023 U CN202321112023 U CN 202321112023U CN 219797612 U CN219797612 U CN 219797612U
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- Prior art keywords
- pipe
- discharge pipe
- water
- closed
- air discharge
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- 239000000498 cooling water Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002528 anti-freeze Effects 0.000 claims description 4
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of closed circulation cooling water systems, in particular to an antifreezing device for a closed circulation cooling water system of a thermal power plant, which comprises a closed water supply pipe, a closed water return pipe and a user end, wherein the closed water supply pipe and the closed water return pipe are connected with the user end, a first water discharge pipe and a first air discharge pipe are arranged on the closed water supply pipe, a second water discharge pipe and a second air discharge pipe are arranged on the closed water return pipe, the first water discharge pipe and the second water discharge pipe are connected through a first connecting pipe, and the first air discharge pipe and the second air discharge pipe are connected through a second connecting pipe; the utility model can communicate the first water discharge pipe with the second water discharge pipe and the first air discharge pipe with the second air discharge pipe, water flows into the second water discharge pipe from the first water discharge pipe, and water in the water discharge pipe and the air discharge pipe is in a flowing state from the first air discharge pipe to the second air discharge pipe, so that the problem that the water in the water discharge pipe and the air discharge pipe freezes in winter to freeze and crack the water discharge pipe and the air discharge pipe is avoided.
Description
Technical Field
The utility model relates to the technical field of closed circulation cooling water systems, in particular to an antifreezing device for a closed circulation cooling water system of a thermal power plant.
Background
The closed water is used as an important auxiliary machine cooling water source of the unit, and is provided by a closed circulating cooling water system, when the closed circulating cooling water system is just started, in order to ensure that circulating water is filled in a pipeline, water is required to be discharged and discharged, when the water is discharged and discharged, water flows into a water discharge pipeline and a gas discharge pipeline and remains in the pipeline, and the water discharge pipeline and the gas discharge pipeline have the problem of frost crack leakage in winter, so that the operation safety of the important auxiliary machine is seriously influenced.
Disclosure of Invention
The utility model mainly aims to provide an antifreezing device for a closed circulating cooling water system of a thermal power plant, which is used for solving the problems that in the prior art, a water discharge pipeline and a gas discharge pipeline in winter have frost crack leakage and seriously influence the operation safety of important auxiliary machines.
In order to achieve the above purpose, the utility model provides an antifreezing device for a closed circulation cooling water system of a thermal power plant, which comprises a closed water supply pipe, a closed water return pipe and a user end, wherein the closed water supply pipe and the closed water return pipe are connected with the user end, a first water discharge pipe and a first air discharge pipe are arranged on the closed water supply pipe, a second water discharge pipe and a second air discharge pipe are arranged on the closed water return pipe, the first water discharge pipe and the second water discharge pipe are connected through a first connecting pipe, and the first air discharge pipe and the second air discharge pipe are connected through a second connecting pipe.
Further, the first water discharge pipe and the second water discharge pipe are provided with a first valve, and the first air discharge pipe and the second air discharge pipe are provided with a second valve.
Further, a third valve for communicating or sealing the first connecting pipe with the outside is arranged on the first connecting pipe, and a fourth valve for communicating or sealing the second connecting pipe with the outside is arranged on the second connecting pipe; through setting up third valve and fourth valve, open third valve and fourth valve after, drain pipe and bleed pipe's function still can normal use, close third valve and fourth valve, open first valve and second valve after, can realize frostproofing function again.
Further, the first air release pipe and the second air release pipe are connected to the high points of the closed water supply pipe and the closed water return pipe; the first air release pipe and the second air release pipe are connected at the high point of the pipeline, the air release pipe is opened, water flows out of the air release pipe, the air in the pipeline is completely discharged, and the pipeline is filled with water.
The utility model can communicate the first water discharge pipe with the second water discharge pipe and the first air discharge pipe with the second air discharge pipe, because the pressure in the closed water supply pipe is larger than the pressure in the closed water return pipe, water flows into the second water discharge pipe from the first water discharge pipe, flows into the second air discharge pipe from the first air discharge pipe, and the water in the water discharge pipe and the air discharge pipe are in a flowing state, thereby avoiding the problem that the water in the water discharge pipe and the air discharge pipe freezes in winter to crack the water discharge pipe and the air discharge pipe.
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 utility model.
FIG. 1 is a schematic diagram of an embodiment;
in the figure: 1. a closed water supply pipe; 2. a closed water return pipe; 3. a user terminal; 4. a first drain pipe; 5. a first bleed line; 6. a second water drain pipe; 7. a second bleed line; 8. a first communication pipe; 9. and a second coupling.
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.
As shown in fig. 1, according to an embodiment of the present utility model, there is provided an antifreeze device for a closed circulation cooling water system of a thermal power plant, including a closed water supply pipe 1, a closed water return pipe 2, and a user terminal 3, where the closed water supply pipe 1 and the closed water return pipe 2 are connected to the user terminal 3, the closed water supply pipe 1 is provided with a first water discharge pipe 4 and a first air discharge pipe 5, the closed water return pipe 2 is provided with a second water discharge pipe 6 and a second air discharge pipe 7, and the first air discharge pipe 5 and the second air discharge pipe 7 are connected to high points of pipes of the closed water supply pipe 1 and the closed water return pipe 2; the first air release pipe 5 and the second air release pipe 7 are connected at the high point of the pipeline, the air release pipe is opened, water flows out of the air release pipe to ensure that the air in the pipeline is completely discharged, and the pipeline is filled with water.
The first water discharge pipe 4 and the second water discharge pipe 6 are connected through a first connecting pipe 8, and the first air discharge pipe 5 and the second air discharge pipe 7 are connected through a second connecting pipe 9; the first water discharge pipe 4 and the second water discharge pipe 6 are provided with first valves, and the first air discharge pipe 5 and the second air discharge pipe 7 are provided with second valves; the first connecting pipe 8 is provided with a third valve for communicating or sealing the first connecting pipe 8 with the outside, and the second connecting pipe 9 is provided with a fourth valve for communicating or sealing the second connecting pipe 9 with the outside.
The working principle of the embodiment is as follows:
after the third valve and the fourth valve are opened in the season without antifreezing, the first connecting pipe 8 and the second connecting pipe 9 are communicated with the outside, and the functions of the first water discharge pipe 4, the second water discharge pipe 6, the first air discharge pipe 5 and the second air discharge pipe 7 can still be normally used;
when the freezing is needed in winter, the third valve and the fourth valve are closed, the first connecting pipe 8 and the second connecting pipe 9 are kept closed with the outside, the first valve and the second valve are slightly opened, water in the closed water supply pipe 1 flows into the closed water return pipe 2 through the first water discharge pipe 4, the first connecting pipe 8 and the second water discharge pipe 6, water in the closed water supply pipe 1 flows into the closed water return pipe 2 through the first air discharge pipe 5, the second connecting pipe 9 and the second air discharge pipe 7, and the water flows in the water discharge pipe and the air discharge pipe, so that the freezing crack of the water discharge pipe and the air discharge pipe is avoided.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. The utility model provides a closed circulation cooling water system freeze-proof device of thermal power factory, includes closed water delivery pipe (1), closed water return pipe (2), user end (3) are connected to closed water delivery pipe (1) and closed water return pipe (2), a serial communication port, be equipped with first blow off pipe (4) and first bleed pipe (5) on closed water delivery pipe (1), be equipped with second blow off pipe (6) and second bleed pipe (7) on closed water return pipe (2), first blow off pipe (4) and second bleed pipe (6) are connected through first connecting pipe (8), first bleed pipe (5) and second bleed pipe (7) are connected through second connecting pipe (9).
2. The antifreeze device of the closed circulation cooling water system of the thermal power plant according to claim 1, wherein the first water discharge pipe (4) and the second water discharge pipe (6) are provided with a first valve, and the first air discharge pipe (5) and the second air discharge pipe (7) are provided with a second valve.
3. The antifreeze device of the closed circulation cooling water system of the thermal power plant according to claim 1, wherein the first connecting pipe (8) is provided with a third valve for communicating or sealing the first connecting pipe (8) with the outside, and the second connecting pipe (9) is provided with a fourth valve for communicating or sealing the second connecting pipe (9) with the outside.
4. The antifreeze device of the closed circulation cooling water system of the thermal power plant according to claim 1, wherein the first air release pipe (5) and the second air release pipe (7) are connected at the high points of the pipes of the closed water supply pipe (1) and the closed water return pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112023.2U CN219797612U (en) | 2023-05-10 | 2023-05-10 | Closed circulation cooling water system freeze-proof device of thermal power factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112023.2U CN219797612U (en) | 2023-05-10 | 2023-05-10 | Closed circulation cooling water system freeze-proof device of thermal power factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219797612U true CN219797612U (en) | 2023-10-03 |
Family
ID=88156809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321112023.2U Active CN219797612U (en) | 2023-05-10 | 2023-05-10 | Closed circulation cooling water system freeze-proof device of thermal power factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219797612U (en) |
-
2023
- 2023-05-10 CN CN202321112023.2U patent/CN219797612U/en active Active
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