CN220602311U

CN220602311U - Waste heat power plant cooling tower outer overflow pipe system convenient to patrol

Info

Publication number: CN220602311U
Application number: CN202322312973.6U
Authority: CN
Inventors: 郦丹; 史俊南; 张晓杰; 王书鹏
Original assignee: Zhejiang Xizi United Engineering Co ltd
Current assignee: Zhejiang Xizi United Engineering Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-15
Anticipated expiration: 2033-08-28

Abstract

The utility model relates to an overflow pipe system outside a cooling tower of a waste heat power plant, which is convenient for inspection, and comprises the following components: the blow-down pipe is horizontally arranged at the bottom or the side wall of the cooling tower water tank and is used for communicating the cooling tower water tank; one end of the overflow pipe is communicated with the blow-down pipe, the other end of the overflow pipe is provided with an opening communicated with the atmosphere, and the side wall of the overflow pipe is provided with an overflow port used for operators to inspect an observation window and positioned on the same horizontal plane with the overflow water level of the cooling tower pool; and the drain pipe is communicated with the overflow pipe through an overflow port and is used for discharging water overflowed from the cooling tower pool. According to the waste heat power plant cooling tower outer overflow pipe system convenient for inspection, the overflow pipe is arranged outside the tower and is directly communicated with the emptying pipe, so that the structural integration of overflow monitoring and drainage functions is realized, the arrangement is simplified, and the observability and maintainability are improved.

Description

Waste heat power plant cooling tower outer overflow pipe system convenient to patrol

Technical Field

The utility model relates to the technical field of electric power energy, in particular to an overflow pipe system outside a cooling tower of a waste heat power plant, which is convenient for inspection.

Background

In the prior art, the circulating water of the medium and small waste heat power generation and new energy power plant usually adopts a mechanical ventilation cooling tower, the cooling tower is generally arranged on the ground, regular inspection is needed in the running process of the unit, because an overflow pipe of the cooling tower is arranged inside the cooling tower, the cooling tower is continuously sprayed with water, inspection staff cannot closely inspect the overflow condition of a water pool, besides judging whether the water supplementing quantity is proper or not through regular sampling of the water quality of the water pool, whether the water supplementing quantity is too much or not is judged through observing the overflow water quantity of the circulating water, and in many cases, the water supplementing quantity of the cooling tower is excessively large possibly caused by estimation and judgment, so that water resource waste is caused.

Disclosure of Invention

In order to solve the problems, the utility model provides the waste heat power plant cooling tower outer overflow pipe system which is provided with the overflow pipe arranged outside the tower and directly communicated with the emptying pipe, so that the overflow monitoring and drainage functions are combined, the arrangement is simplified, and the observability and maintainability are improved.

In order to achieve the above purpose, the waste heat power plant cooling tower outer overflow pipe system convenient for inspection, which is designed by the utility model, comprises:

the blow-down pipe is horizontally arranged at the bottom or the side wall of the cooling tower water tank and is used for communicating the cooling tower water tank;

one end of the overflow pipe is communicated with the blow-down pipe, the other end of the overflow pipe is provided with an opening communicated with the atmosphere, and the side wall of the overflow pipe is provided with an overflow port used for operators to inspect an observation window and positioned on the same horizontal plane with the overflow water level of the cooling tower pool; and the drain pipe is communicated with the overflow pipe through an overflow port and is used for discharging water overflowed from the cooling tower pool.

In order to enable the space layout of the overflow pipe system to be more compact, the overflow pipe comprises an overflow main pipe which is vertically arranged and an overflow branch pipe which is horizontally arranged, the observation window and the overflow port are arranged on the side wall of the overflow main pipe, the overflow branch pipe is communicated with the overflow main pipe through the overflow port, and the drain pipe is communicated with the overflow main pipe through the overflow branch pipe.

In order to realize flow balance, the pipe diameter of the overflow branch pipe is not smaller than the pipe diameter of the overflow main pipe.

For realizing overflow, two functions of blowing out of single drain pipe, still include the evacuation valve, the evacuation valve is located between evacuation pipe and overflow pipe junction and drain pipe and the overflow mouth junction, the one end that the evacuation pipe deviates from the cooling tower pond is through evacuation valve and drain pipe intercommunication, the plane that the drain pipe is located is not higher than the plane that the evacuation pipe is located.

In order to improve the space utilization and the safety, the blow-down pipe, the emptying valve and the drain pipe are all buried underground.

For convenient installation and maintenance, the cooling tower water tank also comprises a wall penetrating pipe sleeve fixedly installed at the bottom or the side wall of the cooling tower water tank, and the blow-down pipe is communicated with the cooling tower water tank through the wall penetrating pipe sleeve.

According to the waste heat power plant cooling tower outer overflow pipe system convenient for inspection, the overflow pipe is arranged outside the tower and is directly communicated with the emptying pipe, so that the structural integration of overflow monitoring and drainage functions is realized, the arrangement is simplified, and the observability and maintainability are improved.

Drawings

Fig. 1 is an elevation view schematically illustrating embodiment 1.

Wherein: the overflow pipe comprises a blow-down pipe 1, an overflow pipe 2, an overflow main pipe 21, an overflow branch pipe 22, an opening 3, an observation window 4, an overflow port 5, a drain pipe 6, a blow-down valve 7 and a wall penetrating pipe sleeve 8.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1.

As shown in fig. 1, the overflow piping outside the cooling tower of the waste heat power plant, which is convenient for inspection and described in this embodiment, includes: the blow-down pipe 1 is horizontally arranged at the bottom or the side wall of the cooling tower water tank and is used for communicating the cooling tower water tank;

one end of the overflow pipe 2 is communicated with the blow-down pipe 1, the other end of the overflow pipe 2 is provided with an opening 3 communicated with the atmosphere, and the side wall of the overflow pipe 2 is provided with an overflow port 5 which is used for operators to inspect an observation window 4 and is positioned at the same horizontal plane with the overflow water level of the cooling tower pool;

and the drain pipe 6 is communicated with the overflow pipe 2 through the overflow port 5 and is used for discharging water overflowed from the cooling tower pool. When the device works, the overflow pipe 2 is communicated with a cooling tower pool through the blow-down pipe 1, and the overflow pipe 2 is communicated with the atmosphere through the opening 3 so as to avoid siphoning in the overflow pipe 2; under normal operation condition, the water level in overflow pipe 2 keeps unanimous with the water level in the cooling tower pond, when the water level of cooling tower exceeded the overflow water level of design, unnecessary water will flow out from overflow port 5 to discharge through drain pipe 6, in order to guarantee that the water level in the cooling tower pond is in safe range all the time, avoided the impact and the overflow that the water level is too high to lead to, utilize above-mentioned structural design, realized through blow-down pipe 1 and pond intercommunication that overflow pipe 2 is outer to be arranged, the staff can directly observe the overflow water level condition in cooling tower pond through the observation window 4 on the overflow pipe 2 lateral wall, such inspection observation ability helps in time discover abnormal situation, like too high or too low water level, thereby take corresponding measure and adjust and maintain, ensure the steady operation of cooling tower and the rational utilization of water, reliability and the efficiency of system have been improved.

In some embodiments, as shown in fig. 1, the overflow pipe 2 includes a vertically arranged overflow main pipe 21 and a horizontally arranged overflow branch pipe 22, the observation window 4 and the overflow port 5 are provided on the side wall of the overflow main pipe 21, the overflow branch pipe 22 is communicated with the overflow main pipe 21 through the overflow port 5, and the drain pipe 6 is communicated with the overflow main pipe 21 through the overflow branch pipe 22. In this way, by the overflow main pipe 21 which is vertically arranged and the overflow branch pipe 22 which is horizontally arranged, the pipeline system occupies less space in the vertical and horizontal directions by adopting a vertical and horizontal combined mode, so that the layout of the whole cooling tower system is more compact and the space is saved; the observation window 4 is arranged on the side wall of the overflow main pipe 21, so that the overflow water level condition of the cooling tower pool can be observed more intuitively.

In some embodiments, as shown in fig. 1, the pipe diameter of the overflow branch pipe 22 is not smaller than the pipe diameter of the overflow main pipe 21. Thus, the water flow distribution balance between the main pipe and the branch pipe is ensured, the situation that the overflow main pipe 21 is excessively large in water flow and the overflow branch pipe 22 is insufficiently large in flow is avoided, and the stable operation of the whole overflow pipe system is maintained.

In some embodiments, as shown in fig. 1, the cooling tower further comprises a drain valve 7, the drain valve 7 is located between the connection of the drain pipe 1 and the overflow pipe 2 and the connection of the drain pipe 6 and the overflow port 5, one end of the drain pipe 1 facing away from the cooling tower water tank is communicated with the drain pipe 6 through the drain valve 7, and the plane of the drain pipe 6 is not higher than that of the drain pipe 1. Like this, through introducing the evacuation valve 7 for drain pipe 6 both can be connected with evacuation pipe 1 and realize the function of emptying, can be connected with overflow pipe 2 again, realize the overflow function, realized the multi-functional application of single drain pipe 6, simplified the arrangement and the connection of pipeline.

In some embodiments, as shown in fig. 1, the blow-down pipe 1, the blow-down valve 7, and the drain pipe 6 are all buried underground. The exposure of these pipe parts can be reduced, reducing the risk of human damage, while avoiding the influence of external factors (such as weather, object collisions, etc.) on the pipe, which contributes to improving the safety and stability of the overflow piping.

In some embodiments, as shown in fig. 1, the cooling tower water tank further comprises a wall-penetrating pipe sleeve 8 fixedly installed at the bottom or the side wall of the cooling tower water tank, and the blow-down pipe 1 is communicated with the cooling tower water tank through the wall-penetrating pipe sleeve 8. The wall pipe sleeve 8 of fixed mounting in cooling tower pond bottom or lateral wall provides a firm wall connection point of wearing for blow-down pipe 1, through wall pipe sleeve 8, blow-down pipe 1 can pass the bottom or the lateral wall in cooling tower pond easily to with the rivers intercommunication in the pond, such design has simplified the installation of pipeline, has improved the efficiency of construction, simultaneously, when maintenance or change blow-down pipe 1, only need take out or install through wall pipe sleeve 8, and need not to destroy or change the structure in cooling tower pond, such design has reduced the degree of difficulty and the cost of maintenance, is favorable to resumes the normal operating of cooling tower fast.

The waste heat power plant cooling tower outer overflow piping convenient to patrol and examine that this embodiment provided through arrange the overflow pipe outside the tower and with blow-down pipe direct communication, has realized overflow monitoring and drainage function's structure unification, has simplified the arrangement, has improved observability and maintainability.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. 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

1. Waste heat power plant cooling tower outer overflow piping convenient to patrol, characterized by includes:

the blow-down pipe (1) is horizontally arranged at the bottom or the side wall of the cooling tower water tank and is used for communicating the cooling tower water tank; one end of the overflow pipe (2) is communicated with the blow-down pipe (1), the other end of the overflow pipe is provided with an opening (3) communicated with the atmosphere, and the side wall of the overflow pipe (2) is provided with an inspection window (4) for operators and an overflow port (5) which is positioned on the same horizontal plane with the overflow water level of the cooling tower pool;

and the drain pipe (6) is communicated with the overflow pipe (2) through the overflow port (5) and is used for discharging water overflowed from the cooling tower pool.

2. The waste heat power plant cooling tower outer overflow pipe system convenient to patrol according to claim 1, wherein the overflow pipe (2) comprises an overflow main pipe (21) which is vertically arranged and an overflow branch pipe (22) which is horizontally arranged, the observation window (4) and the overflow port (5) are arranged on the side wall of the overflow main pipe (21), the overflow branch pipe (22) is communicated with the overflow main pipe (21) through the overflow port (5), and the drain pipe (6) is communicated with the overflow main pipe (21) through the overflow branch pipe (22).

3. The waste heat power plant cooling tower outer overflow pipe system convenient for inspection according to claim 2, wherein the pipe diameter of the overflow branch pipe (22) is not smaller than the pipe diameter of the overflow main pipe (21).

4. The waste heat power plant cooling tower outer overflow pipe system convenient for inspection according to claim 1, 2 or 3, further comprising a drain valve (7), wherein the drain valve (7) is positioned between the junction of the blow-down pipe (1) and the overflow pipe (2) and the junction of the drain pipe (6) and the overflow port (5), one end of the blow-down pipe (1) away from the cooling tower pool is communicated with the drain pipe (6) through the drain valve (7), and the plane of the drain pipe (6) is not higher than the plane of the blow-down pipe (1).

5. The waste heat power plant cooling tower outer overflow pipe system convenient for inspection according to claim 4, wherein the emptying pipe (1), the emptying valve (7) and the drain pipe (6) are all buried underground.

6. The waste heat power plant cooling tower outer overflow pipe system convenient for inspection according to claim 5, further comprising a wall penetrating pipe sleeve (8) fixedly arranged at the bottom or the side wall of the cooling tower pool, wherein the blow-down pipe (1) is communicated with the cooling tower pool through the wall penetrating pipe sleeve (8).