Intercepting device used for overflow pipe discharge and capable of preventing circulating water medicament floating foam from following

By installing a combination of a metal frame and a semi-circular plate at the overflow pipe, the problem of chemical foam and debris being discharged with the overflow in the power plant's circulating water tower pool was solved, thus reducing environmental risks and ensuring stable drainage of the overflow.

CN223766799UActive Publication Date: 2026-01-06DATANG SHAANXI POWER GENERATION CO LTD XIAN THERMAL POWER PLANT
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Patent Information

Application Number
CN202520169430.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-06
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

The overflow outlets of existing power plant circulating water tanks lack protective measures, causing chemical foam and debris to be discharged with the overflow, posing an environmental risk, especially when chemical dosing is not properly controlled or equipment malfunctions.

Method used

Design an interception device for overflow pipe discharge to prevent foam from following the circulating water chemicals, including a metal pipe opening, a shielding component and a pressure-blocking component. Through the combination of a metal frame and a semi-circular plate, foam and debris are physically isolated to ensure normal overflow.

Benefits of technology

It effectively isolates chemical foam and debris, reduces environmental risks, ensures normal drainage of overflow, is easy to use and does not affect water level regulation, and is easy to clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of circulating water tower pools, and discloses an intercepting device for preventing circulating water medicament floating foam from following for discharge of an overflow pipe, which is applied to an overflow port in a pool and comprises a metal pipe orifice arranged at the upper end of the overflow port, and a shielding component is fixedly mounted on the periphery of the upper end of the metal pipe orifice. An operator can place the metal frame at the position of a circulating water overflow horn metal pipe opening, namely the periphery of the upper end of the metal pipe opening, so that the metal frame is immersed into water by the depth of 150 mm, the metal frame can be used as a protective measure for a long time through the arrangement of the metal frame, meanwhile, frequent installation and taking-out are not needed, and when the metal pipe opening encounters floating objects such as pollution agent floating foam, sundries and leaves, the metal frame can be taken out conveniently. The metal frame can play a role in physical isolation, normal water passing of the overflow pipe and discharge of water after the water level of the water tower is too high are not hindered, the leakage net can be used for easily cleaning the periphery of the metal frame in daily inspection, and use is convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of circulating water tower technology, specifically to an interception device for preventing floating foam from circulating water chemicals from following the overflow pipe discharge. Background Technology

[0002] Circulating water refers to water sources that are continuously recycled. By placing the water source in a pool for recycling, a circulating water tower is formed. Usually, in order to ensure the water source in the water tower meets the usage standards, chemicals are added to the water tower for treatment. After the chemicals are added, they react with the water source, producing a lot of foam and the water source itself may contain other impurities.

[0003] Currently, some existing power plant circulating water tanks have a lot of green foam and debris from chemical dosing, and the overflow outlets have no protective measures. During unit operation, chemical foam caused by improper chemical dosing control or equipment malfunctions is also affected by many factors such as summer and autumn rainwater, leaves and debris. In addition, if the circulating water level is not maintained properly, it will flow out through the unprotected overflow outlets, posing a significant environmental risk.

[0004] Therefore, we propose an interception device for overflow pipe discharge to prevent the foam of circulating water chemicals from following, in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an interception device for overflow pipe discharge to prevent chemical foam from following the overflow in circulating water, in order to solve the problem mentioned in the background art that some existing power plant circulating water tower pools have a lot of green foam and debris from chemical dosing, and the overflow outlet has no protective measures. During unit operation, chemical foam caused by improper chemical dosing control or equipment malfunction is also affected by many factors such as summer and autumn rain, leaves and debris. In addition, if the circulating water level is not maintained well, it will flow out through the unprotected overflow outlet, which poses a significant environmental risk.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an interception device for preventing floating foam from circulating water chemicals from following the overflow pipe discharge, applied to a water tank, wherein the water tank has an overflow outlet in the middle, characterized in that the interception device includes a metal pipe opening disposed at the upper end of the overflow outlet, and a shielding component is fixedly installed around the upper end of the metal pipe opening, the shielding component being configured to intercept impurities flowing through the overflow outlet in the water tank, and the shielding component having a pressing component at each of the four corners of its inner wall, the pressing component pressing against the metal pipe opening from the inside of the shielding component.

[0007] Preferably, the shielding assembly includes a metal frame and limiting plates respectively disposed at the four corners of the inner wall of the metal frame. The two ends of the limiting plates are respectively connected to horizontal plates and fixedly connected to the two adjacent inner sidewalls of the metal frame by screws installed on the horizontal plates.

[0008] Preferably, the pressure-blocking component includes a support mechanism and a telescopic mechanism installed at one end of the support mechanism. The support mechanism can fit against the outer wall of the metal pipe opening, and the telescopic mechanism can drive the support mechanism to move in a direction relatively closer to / away from the metal pipe opening through its own telescopic movement.

[0009] Preferably, the support mechanism includes a T-shaped tube and a through groove formed on the side wall of the T-shaped tube.

[0010] Preferably, the telescopic mechanism includes a probe rod and a screw rod that is threadedly installed on the side wall of the probe rod, the screw rod being able to pass through the penetration groove.

[0011] Preferably, a semi-circular plate is fixedly installed at one end of the probe, and the shape of the semi-circular plate matches the outer wall of the metal tube opening.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The operator can place the metal frame around the metal inlet of the circulating water overflow horn, i.e., around the upper part of the metal inlet, so that the metal frame is submerged in water to a depth of mm. Through the setting of the metal frame, it can be used as a long-term protective measure without frequent installation and removal. When the metal inlet encounters floating objects such as contaminated chemicals, debris, leaves, etc., the metal frame can play a physical isolation role, without hindering the normal flow of water in the overflow pipe or the discharge of water quality after the water level in the water tower is too high. During daily inspections, a strainer can be used to easily clean around the metal frame, making it convenient to use.

[0014] 2. After placing the metal frame around the upper part of the metal pipe opening, the operator can pull the probe out of the inner cavity of the T-shaped long cylinder, allowing the screw fixed on one side of the upper end of the probe to slide in the inner cavity of the penetration groove. This causes the probe to drive the semi-arc plate to press against the outer wall of the metal pipe opening. After determining the position, the screw is tightened into the upper end of the penetration groove by the fixing nut. Since the inner wall of the metal frame is equipped with abutment components at the four corners, the semi-arc plate can press against the outer wall of the metal pipe opening to improve the stability of the metal frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2This is a three-dimensional structural diagram of the shielding component of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A;

[0018] Figure 4 This is a three-dimensional structural diagram of the pressure-resistant component of this utility model.

[0019] In the diagram: 1. Water tank; 2. Overflow outlet; 3. Metal pipe opening; 4. Shielding assembly; 41. Metal frame; 42. Limiting plate; 43. Horizontal plate; 44. Screw; 5. Pressing assembly; 51. Support mechanism; 511. T-shaped long cylinder; 512. Penetrating groove; 52. Telescopic mechanism; 521. Probing rod; 522. Screw; 523. Fixing nut; 524. Semi-arc plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figures 1-3 The present invention discloses an interception device for preventing foam from following the overflow of circulating water chemicals, which is applied to a water tank 1. An overflow outlet 2 is provided in the middle of the water tank 1. The interception device includes a metal pipe 3 located at the upper end of the overflow outlet 2. A shielding component 4 is fixedly installed around the outside of the metal pipe 3. The shielding component 4 is suitable for intercepting foam and other impurities. A pressing component 5 is fixedly installed at the four corners of the inner wall of the shielding component 4. The pressing component 5 presses against the metal pipe 3 from the inside of the shielding component 4 to improve the stability of the connection between the shielding component 4 and the metal pipe 3, so that the staff can clean it with a filter screen.

[0022] The shielding component 4 is made of aluminum plate, which is lightweight and corrosion resistant.

[0023] The shielding assembly 4 includes a metal frame 41 and limiting plates 42 respectively disposed at the four corners of the inner wall of the metal frame 41. Horizontal plates 43 are fixedly installed at both ends of the limiting plates 42 and are fixedly connected to the two adjacent inner side walls of the metal frame 41 by screws 44 installed on the horizontal plates 43.

[0024] In this embodiment, the operator can place the metal frame 41 around the upper part of the metal pipe opening 3 of the circulating water overflow horn, so that the metal frame 41 is immersed in the water to a depth of 150mm. With the setting of the metal frame 41, it can be used as a protective measure for a long time without frequent installation and removal. When the metal pipe opening 3 encounters floating objects such as pollutant foam, debris, and leaves, the metal frame 41 can play a physical isolation role, while not hindering the normal water flow of the overflow pipe and the discharge of water quality after the water level in the water tower is too high. During daily inspection, a strainer can be used to easily clean around the metal frame 41, making it convenient to use.

[0025] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 4 The pressure assembly 5 includes a support mechanism 51 and a telescopic mechanism 52 movably mounted on one end of the support mechanism 51. The support mechanism 51 can fit against the outer wall of the metal pipe opening 3. The telescopic mechanism 52 can drive the support mechanism 51 to move relatively closer to / away from the metal pipe opening 3 through its own telescopic movement.

[0026] Specifically, the support mechanism 51 includes a T-shaped long cylinder 511 and a through groove 512 formed on the side wall of the T-shaped long cylinder 511. In this embodiment, the through groove 512 is located at the upper middle part of the T-shaped long cylinder 511.

[0027] The telescopic mechanism 52 includes a probe 521 and a screw 522 installed on the upper side of the probe 521 by means of a threaded connection. The screw 522 is movably installed in the inner cavity of the through groove 512, and a fixing nut 523 is threadedly connected to the outer surface of the screw 522.

[0028] The outer surface of the screw 522 is threaded with a fixing nut 523, and a semi-arc plate 524 is fixedly installed at one end of the probe 521. The shape of the semi-arc plate 524 matches the outer wall of the metal pipe 3.

[0029] In this embodiment: After the operator places the metal frame 41 around the upper end of the metal pipe opening 3, the probe 521 can be pulled out from the inner cavity of the T-shaped long cylinder 511, so that the screw 522 fixedly installed on one side of the upper end of the probe 521 slides in the inner cavity of the penetration groove 512, so that the probe 521 drives the semi-arc plate 524 to press against the outer wall of the metal pipe opening 3. After determining the position, the screw 522 is threaded and tightened into the upper end of the groove of the penetration groove 512 by the fixing nut 523. Since the inner wall of the metal frame 41 is provided with the pressing component 5 at the four corners, the semi-arc plate 524 can press against the outer wall of the metal pipe opening 3 to improve the stability of the metal frame 41.

[0030] Working Principle: The operator can place the metal frame 41 around the upper part of the metal pipe opening 3 of the circulating water overflow horn, immersing the metal frame 41 in water to a depth of 150mm. The metal frame 41 provides long-term protection without frequent installation or removal. When the metal pipe opening 3 encounters floating contaminants such as pesticide foam, debris, or leaves, the metal frame 41 acts as a physical barrier, without hindering the normal flow of water through the overflow pipe or the discharge of water from the water tower when the water level is too high. During routine inspections, a strainer can be used to easily clean around the metal frame 41. The operator should place the metal frame 41... After the upper part of the metal pipe opening 3 is surrounded, the probe 521 can be pulled out from the inner cavity of the T-shaped long cylinder 511, so that the screw 522 fixedly installed on one side of the upper end of the probe 521 can slide in the inner cavity of the penetration groove 512. This causes the probe 521 to drive the semi-arc plate 524 to press against the outer wall of the metal pipe opening 3. After the position is determined, the screw 522 is threaded and tightened into the upper end of the groove of the penetration groove 512 by the fixing nut 523. Since the inner wall of the metal frame 41 is provided with the pressing component 5 at each of the four corners, the semi-arc plate 524 can press against the outer wall of the metal pipe opening 3 to improve the stability of the metal frame 41.

[0031] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description in the instruction manual and the attached drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. In addition, the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A kind of overflow pipe discharge prevents the blocking device of circulating water agent floating foam follow, it is applied to water pool (1), the middle part of the water pool (1) is equipped with overflow (2), it is characterized in that, The intercepting device comprises a metal pipe mouth (3) arranged at the upper end of the overflow opening (2), a shielding assembly (4) fixedly installed around the outer periphery of the metal pipe mouth (3), the shielding assembly (4) is configured to intercept impurities flowing through the overflow opening (2) in the water tank (1), and a pressing assembly (5) is arranged at each of the four corners of the inner wall of the shielding assembly (4), the pressing assembly (5) presses the metal pipe mouth (3) from the inner side of the shielding assembly (4).

2. A device for preventing the entrainment of a foam layer by a spillway effluent according to claim 1, characterised in that: The shielding assembly (4) comprises a metal frame (41) and a limiting plate (42) arranged at each of the four corners of the inner wall of the metal frame (41), both ends of the limiting plate (42) are connected with a horizontal plate (43) and are fixedly connected with two adjacent inner side walls of the metal frame (41) through a screw (44) installed on the horizontal plate (43).

3. The overflow pipe discharge water circulating agent foam following prevention interception device according to claim 1, characterized in that: The pressing assembly (5) comprises a supporting mechanism (51) and an extension mechanism (52) installed at one end of the supporting mechanism (51), the supporting mechanism (51) can be attached to the outer side wall of the metal pipe mouth (3), and the extension mechanism (52) can drive the supporting mechanism (51) to move in the direction of relatively approaching / away from the metal pipe mouth (3) through the extension and contraction movement of itself.

4. The overflow pipe discharge water circulating agent foam following prevention interception device according to claim 3, characterized in that: The supporting mechanism (51) comprises a T-shaped long cylinder (511) and a penetrating groove (512) formed in the side wall of the T-shaped long cylinder (511).

5. A device for preventing the entrainment of a foam layer by a spillway effluent according to claim 4, characterised in that: The extension mechanism (52) comprises a probe rod (521) and a screw rod (522) installed on the side wall of the probe rod (521) through threaded connection, and the screw rod (522) can penetrate through the penetrating groove (512).

6. A device for preventing the entrainment of a foam layer by a spillway effluent according to claim 5, characterised in that: One end of the probe rod (521) is fixedly installed with a semicircular plate (524), and the shape of the semicircular plate (524) matches the outer wall of the metal pipe mouth (3).