Anti-wall-flow efficient drainage and ventilation device for ventilation cooling tower of high-position water collecting machine of power plant

Abstract

The utility model discloses a power plant high-level water collection mechanical draft cooling tower wall flow prevention efficient drainage ventilation device which comprises a water collection inclined plate and a water collection tank, the water collection inclined plate is obliquely arranged on a wall body, the water collection tank is arranged below the water collection inclined plate, and the power plant high-level water collection mechanical draft cooling tower wall flow prevention efficient drainage ventilation device is characterized by further comprising a wall gutter channel, the water collecting inclined plate is arranged along the wall body and is embedded in the water collecting inclined plate; and the drainage ventilation pipe is arranged in the wall water flowing groove and vertically penetrates through the wall water flowing groove, and the drainage ventilation pipe is used for guiding water in the wall water flowing groove into the water collecting groove. According to the arrangement, the wall water flowing groove is formed in the wall body of the ventilation cooling tower and embedded in the water collecting inclined plate, filler spraying water on the wall body and wall flowing water splashed to the wall body on the filler and the water collecting inclined plate converge into the wall water flowing groove along the wall body, meanwhile, the drainage ventilation pipe is arranged on the wall water flowing groove, and the drainage ventilation pipe vertically penetrates through the wall water flowing groove; therefore, wall flowing water collected in the wall flowing water groove can flow into the water collecting groove through the drainage ventilation pipe, and the situation that wall flowing water leakage is formed in the tower is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a wall flow-proof and efficient drainage and ventilation device for a high-position water-collecting mechanical ventilation cooling tower in a power plant. Background Art

[0002] Mechanical ventilation cooling tower is an important cooling equipment in power plants. The pump group of the power plant sends circulating water from outside the tower to the water distribution pipe inside the tower, and then sprays it onto the packing through the nozzle. The fan on the top of the tower body forces ventilation, so that the circulating water is fully cooled in the packing, and then used as a cooling medium to cool various equipment in the power plant. The high-level water collection mechanical ventilation cooling tower has an additional suspended water collection device in the tower. The cooled circulating water falls onto the water collection ramp, and then is collected into the water collection tank along the water collection ramp, and finally converges into the water collection pool, thereby maintaining the high water level and high potential energy of the water collection pool, thereby increasing the pump group inlet head, reducing the pump head, reducing power consumption, and reducing noise.

[0003] When the power plant units using high-level water collection mechanical ventilation cooling towers are in operation, wall flow phenomenon is common in the cooling towers. On the one hand, the cooling water splashes onto the wall through the filler and the water collection inclined plate, generating wall flow water; on the other hand, in the initial start-up of the unit, the cooling tower fan is not started, the air flow rate in the tower is slow, and the cooling water forms evaporated water vapor near the water collection device after heat exchange evaporation. The suspended water vapor condenses into wall flow water after contacting the cooler wall. The above two defects lead to the common wall flow leakage phenomenon in the power plant high-level water collection mechanical ventilation cooling tower when it is in operation. Utility Model Content

[0004] The utility model provides a high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower with high-position water collection in a power plant, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of the utility model relates to a high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower of a power plant with high-position water collection, comprising a water collection inclined plate and a water collection trough, wherein the water collection inclined plate is obliquely arranged on the wall, and the water collection trough is arranged below the water collection inclined plate, and is characterized in that it also includes:

[0006] A wall flow water trough is arranged along the wall and embedded in the water collecting inclined plate;

[0007] A drainage ventilation pipe is arranged in the wall flow water trough and passes through the wall flow water trough from top to bottom. The drainage ventilation pipe is used to introduce water in the wall flow water trough into the water collection trough.

[0008] According to some embodiments of the utility model, a water retaining edge is provided on a side of the wall flow channel away from the wall.

[0009] According to some embodiments of the utility model, a dripping edge is provided at the water outlet of the drainage ventilation pipe, and the dripping edge extends downward from the wall flow groove, and the dripping edge is located above the water collecting groove.

[0010] According to some embodiments of the utility model, the drainage ventilation pipe is arranged in parallel with the water collecting inclined plate.

[0011] According to some embodiments of the utility model, a water stop ring is provided in the middle section of the drainage ventilation pipe.

[0012] According to some embodiments of the present utility model, the center of the water outlet of the drainage ventilation pipe is located above the central axis of the water collecting tank.

[0013] According to some embodiments of the utility model, the upper end of the wall flow groove is inclined toward the center of the drainage ventilation pipe.

[0014] According to some embodiments of the utility model, a splash guard is also included, and the splash guard is arranged on the water collecting inclined plate.

[0015] According to some embodiments of the present utility model, one side of the water collecting groove extends upward and is connected to the lower end of the water collecting inclined plate.

[0016] The beneficial effects of the utility model are as follows.

[0017] 1. The wall flow water trough is arranged on the wall of the ventilation cooling tower and embedded in the water collecting inclined plate. The water from the filler on the wall and the wall flow water splashed on the filler and the water collecting inclined plate to the wall flow along the wall to the wall flow water trough. At the same time, a drainage ventilation pipe is arranged on the wall flow water trough. The drainage ventilation pipe runs through the wall flow water trough up and down, so that the wall flow water collected in the wall flow water trough can flow into the water collecting trough through the drainage ventilation pipe, thereby avoiding the formation of wall flow leakage in the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower of a power plant with high-position water collection according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 A partially enlarged schematic diagram of a wall flow-proof high-efficiency drainage ventilation device for a high-level water collection mechanical ventilation cooling tower in a power plant is shown;

[0020] Figure 3 It is a side view of a high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower of a power plant with high-position water collection according to an embodiment of the utility model;

[0021] Figure 4 yes Figure 3The shown is a partially enlarged schematic diagram of a wall flow-proof and efficient drainage ventilation device for a high-level water collection mechanical ventilation cooling tower in a power plant.

[0022] Figure Number:

[0023] A water collecting inclined plate 100, a water collecting tank 110, and a splash guard 120;

[0024] Wall flow trough 200, drainage ventilation pipe 210, drip edge 211, water stop ring 212, water retaining edge 220;

[0025] Wall 300. DETAILED DESCRIPTION

[0026] The following content will describe several embodiments of the present utility model, including embodiments corresponding to the drawings. It can be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present utility model, and should not be understood as limiting the scope of protection of the present utility model.

[0027] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0028] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set on" another feature, it can be directly "fixed", "connected", "installed" or "set on" another feature, or it can be indirectly "fixed", "connected", "installed" or "set on" another feature. The words "fixed", "connected", "installed" or "set on" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this utility model in combination with the specific content of the technical solution.

[0029] It should be noted that the descriptions of the directions or positional relationships indicated by up, down, left, right, top, bottom, front, back, inside, and outside used in the present invention are based on the directions or positional relationships in the drawings or embodiments and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] It should be noted that the term "and / or" used in the present utility model includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0031] It should be noted that the description of first and second in the utility model is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] It should be noted that, unless otherwise clearly defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention.

[0033] Reference Figures 1 to 4 According to the technical solution of the utility model, a high-level water collection mechanical ventilation cooling tower anti-wall flow efficient drainage and ventilation device for a power plant includes a water collection inclined plate 100 and a water collection trough 110. The water collection inclined plate 100 is inclinedly arranged on the wall 300, and the water collection trough 110 is arranged below the water collection inclined plate 100. It is characterized in that it also includes: a wall flow trough 200, which is arranged along the wall 300 and embedded in the water collection inclined plate 100; a drainage ventilation pipe 210, which is arranged in the wall flow trough 200 and passes through the wall flow trough 200 from top to bottom, and the drainage ventilation pipe 210 is used to introduce water in the wall flow trough 200 into the water collection trough 110.

[0034] The application of the above-mentioned drainage and ventilation device has at least the following beneficial effects: the wall flow trough 200 is arranged on the wall 300 of the ventilation cooling tower and embedded in the water collecting inclined plate 100, the filler on the wall 300 is sprayed with water and the wall flow water splashed on the filler and the water collecting inclined plate 100 to the wall 300 is converged along the wall 300 into the wall flow trough 200, and at the same time, a drainage ventilation pipe 210 is arranged on the wall flow trough 200, and the drainage ventilation pipe 210 passes through the wall flow trough 200 from top to bottom, so that the wall flow water collected in the wall flow trough 200 can flow into the water collecting trough 110 through the drainage ventilation pipe 210, thereby avoiding the formation of wall flow leakage in the tower.

[0035] According to some embodiments of the utility model, a water retaining edge 220 is provided on the side of the wall flow trough 200 away from the wall 300. The water retaining edge 220 can block the water flowing to the edge of the wall flow trough 200, so that it remains in the wall flow trough 200 and is discharged through the drainage ventilation pipe 210.

[0036] According to some embodiments of the utility model, a drip edge 211 is provided at the water outlet of the drainage ventilation pipe 210, and the drip edge 211 extends downward from the wall flow trough 200. The drip edge 211 is located above the water collecting trough 110. By extending the water outlet at the lower end of the drainage ventilation pipe 210 out of the wall flow trough 200 to form the drip edge 211, the wall flow water discharged from the wall flow trough 200 can be prevented from flowing back onto the wall 300 through the edge of the drainage ventilation pipe 210, and at the same time, a small amount of condensed water on the lower wall of the wall flow trough 200 can be drained into the water collecting trough 110.

[0037] According to some embodiments of the utility model, the drainage ventilation pipe 210 is arranged in parallel with the water collecting inclined plate 100. In the process of downward drainage, the drainage ventilation pipe 210 also plays the role of a ventilation pipe, that is, the lower end surface of the drainage ventilation pipe 210 is used for drainage, and the middle part is used for ventilation. By arranging the drainage ventilation pipe 210 in parallel with the water collecting inclined plate 100, the wall flow water is discharged while optimizing the ventilation vortex flow field of the cooling tower, so that the incoming air flow is consistent with the incoming air flow direction of the water collecting inclined plate 100, the ventilation resistance is reduced, the wall inlet vortex area is reduced, the cooling air ventilation area on the wall side is increased, and the cooling efficiency of the cooling tower is improved.

[0038] According to some embodiments of the present invention, a water stop ring 212 is provided in the middle section of the drainage ventilation pipe 210 to prevent the wall flow water from seeping into the bottom of the wall flow trough 200 through the gap between the drainage ventilation pipe 210 and the concrete.

[0039] According to some embodiments of the present invention, the center of the water outlet of the drainage ventilation pipe 210 is located above the central axis of the water collecting tank 110, so as to ensure that the wall flow water led out of the drainage ventilation pipe 210 can accurately enter the water collecting tank 110.

[0040] According to some embodiments of the present invention, the upper end of the wall flow trough 200 is inclined toward the center of the drainage ventilation pipe 210 , thereby ensuring that the water in the wall flow trough 200 flows toward the drainage ventilation pipe 210 .

[0041] According to some embodiments of the present invention, a splash guard 120 is further included. The splash guard 120 is disposed on the water collecting inclined plate 100 . The splash guard 120 is used to minimize the water falling on the water collecting inclined plate 100 from splashing onto the wall 300 .

[0042] According to some embodiments of the present invention, one side of the water collecting tank 110 extends upward and is connected to the lower end of the water collecting inclined plate 100 .

[0043] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" etc. may be used to describe several embodiments of the utility model. The specific features, structures, materials or characteristics in the several embodiments may be combined in accordance with the principles and purposes of the utility model.

[0044] Although some embodiments of the utility model have been shown and described in this specification, the utility model should not be limited to the above-mentioned embodiments. As long as the technical effects of the utility model are achieved by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations of these embodiments within the spirit and principles of the present disclosure and without departing from the principles and purpose of the present utility model should be included in the scope of protection of the present disclosure and should be deemed to belong to the scope of protection of the utility model.

Claims

1. A high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower with high water collection in a power plant, comprising a water collection inclined plate and a water collection trough, wherein the water collection inclined plate is inclinedly arranged on the wall, and the water collection trough is arranged below the water collection inclined plate, characterized in that: Also includes: A wall flow water trough is arranged along the wall and embedded in the water collecting inclined plate; A drainage ventilation pipe is arranged in the wall flow water trough and passes through the wall flow water trough from top to bottom. The drainage ventilation pipe is used to introduce water in the wall flow water trough into the water collection trough.

2. According to claim 1, a high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower with high water collection in a power plant, characterized in that: A water retaining edge is arranged on one side of the wall flow channel away from the wall.

3. The high-efficiency drainage and ventilation device for preventing wall flow of a high-position water collection mechanical ventilation cooling tower in a power plant according to claim 1 is characterized in that: A drip edge is arranged at the water outlet of the drainage ventilation pipe, and the drip edge extends downward out of the wall flow groove, and the drip edge is located above the water collection groove.

4. The high-efficiency drainage and ventilation device for preventing wall flow of a high-position water collection mechanical ventilation cooling tower in a power plant according to claim 3 is characterized in that: The drainage ventilation pipe is arranged in parallel with the water collecting inclined plate.

5. The high-efficiency drainage and ventilation device for preventing wall flow of a high-position water collection mechanical ventilation cooling tower in a power plant according to claim 4, characterized in that: A water stop ring is arranged in the middle section of the drainage ventilation pipe.

6. A high-efficiency drainage and ventilation device for preventing wall flow of a high-level water collection mechanical ventilation cooling tower in a power plant according to any one of claims 3 to 5, characterized in that: The center of the water outlet of the drainage ventilation pipe is located above the central axis of the water collecting tank.

7. A high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower with high-level water collection in a power plant according to claim 6, characterized in that: The upper end surface of the wall flow groove is inclined toward the center of the drainage ventilation pipe.

8. The high-efficiency drainage and ventilation device for preventing wall flow of a high-position water collection mechanical ventilation cooling tower in a power plant according to claim 1, characterized in that: It also includes a splash guard, which is arranged on the water collecting inclined plate.

9. The high-efficiency drainage and ventilation device for preventing wall flow of a mechanical ventilation cooling tower with high-level water collection in a power plant according to claim 1, characterized in that: One side of the water collecting groove extends upward and is connected to the lower end of the water collecting inclined plate.

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