Condensate minimum flow recirculation pipeline with shock absorption and noise reduction structure

By adjusting the position of the orifice plate and the auxiliary liquid delivery structure, and by monitoring and controlling the water flow rate in real time, the safety hazards caused by vibration in the condensate recirculation pipeline were resolved, and the stable operation of the pipeline was achieved.

CN224174758UActive Publication Date: 2026-04-28SHAANXI BINCHANG WENJIAPO POWER GENERATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI BINCHANG WENJIAPO POWER GENERATION CO LTD
Filing Date
2025-06-23
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing minimum flow recirculation pipeline for condensate has a throttling orifice plate installed in the middle section, which causes severe vibration of the pipeline when water flows through it. This leads to safety hazards such as deterioration of valve operating conditions, malfunction of control instruments, and loosening or cracking of pipeline connections.

Method used

By adjusting the installation position of the orifice plate and combining it with auxiliary liquid delivery structures, including a flow rate detector, a waterproof motor-driven auxiliary flow agitator, a fiber optic grating sensing layer, and a vibration detector, the water flow rate and pipeline vibration can be monitored and controlled in real time, reducing water flow resistance and thus minimizing pipeline vibration.

Benefits of technology

It effectively prevents pipe vibration caused by excessive water flow velocity, avoids safety hazards, and ensures the stability of the pipeline and the normal operation of control instruments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of condensation water minimum flow recirculation pipeline equipment, in particular to a condensation water minimum flow recirculation pipeline with a shock absorption and noise reduction structure. According to the technical scheme, the condensation water minimum flow recirculation pipeline with the shock absorption and noise reduction structure comprises a recirculation pipeline body, an installation ring, a throttling orifice plate, a flow velocity detector, a supporting installation support, an auxiliary plug flow auger, a waterproof motor, a fiber bragg grating sensing layer, a supporting support and a shock detector, and the installation ring is arranged on the inner side of the recirculation pipeline body; a throttling orifice plate is arranged on the inner side of the mounting ring, and a flow velocity detector is arranged in the mounting ring; by adjusting the installation position of the throttling orifice plate and arranging the auxiliary liquid feeding structure, when water flow passes through the interior of the recirculation pipeline, the water flow can be assisted to flow and convey, the flow speed of the water flow is controlled, the situation that the recirculation pipeline vibrates due to the fact that the flow speed of the water flow is too large is prevented, and potential safety hazards are avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of condensate minimum flow recirculation pipeline equipment, and in particular to a condensate minimum flow recirculation pipeline with a vibration reduction and noise reduction structure. Background Technology

[0002] Vibration in steam and water pipelines is one of the common causes affecting the safe production of thermal power plants. Strong pipeline vibration can cause valves to deteriorate, control instruments to malfunction, and pipeline connections to loosen or break. This can lead to leaks or, in severe cases, pollution or explosions due to ruptures, causing serious accidents.

[0003] In existing condensate minimum flow recirculation pipelines, the orifice plate is installed in the middle section of the recirculation pipeline. When water flows through the inside of the recirculation pipeline, the recirculation pipeline is prone to significant vibration, which causes changes in the working conditions of the medium inside the pipe, resulting in pipeline vibration. This can easily lead to deterioration of valve working conditions, malfunction of control instruments, and loosening or cracking of pipeline connections.

[0004] For existing condensate minimum flow recirculation pipelines, the orifice plate is installed in the middle section of the recirculation pipeline. When water flows through the recirculation pipeline, the pipeline is prone to significant vibration, which causes changes in the working conditions of the medium inside the pipe, resulting in pipeline vibration. This can easily lead to deterioration of valve conditions, malfunction of control instruments, and loosening or cracking of pipeline connections. This solution adjusts the installation position of the orifice plate and sets up an auxiliary liquid delivery structure. When water flows through the recirculation pipeline, it can assist in the flow and delivery of water, and control the flow rate of water to prevent excessive flow rate from causing vibration in the recirculation pipeline and avoid safety hazards. Utility Model Content

[0005] To overcome the limitations of existing minimum flow recirculation pipelines for condensate, orifice plates are installed in the middle section of the recirculation pipeline. When water flows through the recirculation pipeline, it is prone to significant vibration, which causes changes in the working conditions of the medium inside the pipe. This vibration can lead to deterioration of valve conditions, malfunction of control instruments, and loosening or cracking of pipe connections.

[0006] The technical solution of this utility model is as follows: a condensate recirculation pipeline with a vibration reduction and noise reduction structure and a minimum flow rate, comprising a recirculation pipeline body, an installation ring, a throttling orifice plate, a flow velocity detector, a support mounting bracket, an auxiliary flow-pushing auger, a waterproof motor, a fiber optic grating sensing layer, a support bracket, and a vibration detector. An installation ring is provided on the inner side of the recirculation pipeline body, a throttling orifice plate is provided on the inner side of the installation ring, a flow velocity detector is provided inside the installation ring, a support mounting bracket is provided on one side of the installation ring, an auxiliary flow-pushing auger is provided on one side of the support mounting bracket, and a waterproof motor is provided on the other side of the support mounting bracket. A fiber optic grating sensing layer is provided inside the recirculation pipeline body, a support bracket is provided on the outer side of the recirculation pipeline body, and a vibration detector is provided on the top surface of the support bracket.

[0007] Preferably, a throttling orifice plate is installed via an installation ring to throttle the water flowing inside the recirculation pipeline. A flow velocity detector monitors the water velocity passing through the throttling orifice plate. An auxiliary flow-pushing auger is installed via a support bracket and rotated by a waterproof motor to reduce resistance and assist in the flow of water inside the recirculation pipeline. The pressure on the pipeline wall is detected via a fiber optic grating sensing layer. A vibration detector is installed via a support bracket to detect vibration in the recirculation pipeline. When the vibration index exceeds a threshold, the auxiliary flow-pushing auger is activated to reduce water flow resistance and decrease vibration in the recirculation pipeline.

[0008] Preferably, an auxiliary mounting bracket is provided on the outer side of the main body of the recirculation pipeline, a shock-absorbing pad is provided on the inner side of the auxiliary mounting bracket, and a mounting plate is provided on the top surface of the auxiliary mounting bracket.

[0009] Preferably, a main control valve is installed at one end of the main body of the recirculation pipeline, and a pressure relief device is installed on the top surface of the main control valve.

[0010] Preferably, a mounting platform is provided on one side of the main control valve, and a central control unit is provided on one side of the mounting platform.

[0011] Preferably, a fixed bracket is provided on the bottom surface of the main control valve, and a throttling control valve is provided at the bottom end of the fixed bracket.

[0012] Preferably, branch water pipes are provided on both sides of the main control valve, and a mounting flange is provided at one end of the branch water pipe.

[0013] Preferably, the inside of the diversion pipe is equipped with a fixing rod, and the outside of the fixing rod is equipped with a pressure-reducing channel partition.

[0014] The beneficial effects of this utility model are:

[0015] Compared to existing minimum flow recirculation pipelines for condensate, where the orifice plate is installed in the middle section of the recirculation pipeline, significant vibration can easily occur when water flows through the pipeline. This can lead to changes in the working conditions of the medium inside the pipe, causing pipeline vibration, which can easily result in deterioration of valve conditions, malfunction of control instruments, and loosening or cracking of pipeline connections. This solution adjusts the installation position of the orifice plate and sets up an auxiliary liquid delivery structure to assist the flow of water when it flows through the recirculation pipeline and control the flow rate, preventing excessive flow velocity from causing vibration in the recirculation pipeline and avoiding potential safety hazards. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a condensate minimum flow recirculation pipeline with a shock-absorbing and noise-reducing structure according to this utility model.

[0017] Figure 2 The diagram shown is a two-dimensional structural schematic of a condensate minimum flow recirculation pipeline with a shock-absorbing and noise-reducing structure according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the bottom surface of a condensate recirculation pipeline with a shock-absorbing and noise-reducing structure according to this utility model.

[0019] Figure 4 The diagram shown is a partial three-dimensional structural schematic of a condensate recirculation pipeline with a shock-absorbing and noise-reducing structure according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Main body of recirculation pipeline; 201. Auxiliary mounting bracket; 202. Anti-vibration pad; 203. Mounting plate; 301. Mounting ring; 302. Throttling orifice plate; 303. Flow velocity detector; 304. Support mounting bracket; 305. Auxiliary flow-pushing auger; 306. Waterproof motor; 307. Fiber grating sensing layer; 308. Support bracket; 309. Vibration detector; 401. Main control valve; 402. Pressure relief device; 501. Mounting platform; 502. Central control panel; 601. Fixed bracket; 602. Throttling control valve; 701. Branch water pipe; 702. Mounting flange; 801. Fixed rod; 802. Pressure-reducing channel partition. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 2 and Figure 4This utility model provides an embodiment of a condensate recirculation pipeline with a vibration reduction and noise reduction structure, comprising a recirculation pipeline body 1, an mounting ring 301, a throttling orifice plate 302, a flow velocity detector 303, a support mounting bracket 304, an auxiliary flow-pushing agitator 305, a waterproof motor 306, a fiber optic grating sensing layer 307, a support bracket 308, and a vibration detector 309. The mounting ring 301 is disposed on the inner side of the recirculation pipeline body 1, the throttling orifice plate 302 is disposed on the inner side of the mounting ring 301, the flow velocity detector 303 is disposed inside the mounting ring 301, the support mounting bracket 304 is disposed on one side of the mounting ring 301, the auxiliary flow-pushing agitator 305 is disposed on one side of the support mounting bracket 304, and the waterproof motor 306 is disposed on the other side of the support mounting bracket 304. The fiber optic grating sensing layer 307 is disposed inside the recirculation pipeline body 1, the support bracket 308 is disposed on the outer side of the recirculation pipeline body 1, and the vibration detector 309 is disposed on the top surface of the support bracket 308.

[0023] Please see Figure 1 and Figure 3 In this embodiment, an auxiliary mounting bracket 201 is provided on the outer side of the recirculation pipeline body 1, a shock-absorbing soft pad 202 is provided on the inner side of the auxiliary mounting bracket 201, and a mounting plate 203 is provided on the top surface of the auxiliary mounting bracket 201. During use, the recirculation pipeline body 1 is assisted in its installation using the auxiliary mounting bracket 201, the shock-absorbing soft pad 202 provides cushioning protection at the contact point between the auxiliary mounting bracket 201 and the recirculation pipeline body 1, and the auxiliary mounting bracket 201 is installed using the mounting plate 203. A main control is provided at one end of the recirculation pipeline body 1. Valve 401, the top surface of the main control valve 401 is equipped with a pressure relief device 402. In use, the main control valve 401 controls the water flow through the main body 1 of the recirculation pipeline, and the pressure relief device 402 regulates the pressure in the main control valve 401. One side of the main control valve 401 is equipped with a mounting platform 501, and one side of the mounting platform 501 is equipped with a central control console 502. In use, the central control console 502 is installed on the mounting platform 501, and the main control valve 401 is operated through the central control console 502.

[0024] A fixed bracket 601 is provided on the bottom surface of the main control valve 401. A throttling control valve 602 is provided at the bottom end of the fixed bracket 601. In use, the throttling control valve 602 is installed through the fixed bracket 601 and the throttling control valve 602 is used to adjust the water flow direction in the main control valve 401. A diversion water pipe 701 is provided on both sides of the main control valve 401. One end of the diversion water pipe 701 is provided with a mounting flange 702. In use, the water flow in the main control valve 401 is diverted through the diversion water pipe 701. To prevent excessive water flow velocity from causing high water pressure in the main body 1 of the recirculation pipe, and to reduce the vibration caused by excessive water flow velocity in the main body 1 of the recirculation pipe, a branch pipe 701 is connected to other pipes via a mounting flange 702. A fixing rod 801 is installed inside the branch pipe 701, and a pressure reducing channel baffle 802 is installed on the outside of the fixing rod 801. During use, the pressure reducing channel baffle 802 is installed through the fixing rod 801 to reduce the water pressure in the branch pipe 701.

[0025] During operation, the orifice plate 302 is installed via the mounting ring 301 to throttle the water flowing inside the recirculation pipe body 1. The flow velocity detector 303 detects the water flow velocity through the orifice plate 302. The auxiliary flow-pushing agitator 305 is installed via the support mounting bracket 304. The auxiliary flow-pushing agitator 305 is rotated by the waterproof motor 306 to reduce the resistance and assist the flow of water inside the recirculation pipe body 1. The pipe wall pressure of the recirculation pipe body 1 is detected via the fiber optic grating sensing layer 307. The vibration detector 309 is installed via the support bracket 308 to detect the vibration of the recirculation pipe body 1. When the vibration index exceeds the threshold, the auxiliary flow-pushing agitator 305 is activated to reduce the water flow resistance and reduce the vibration of the recirculation pipe body 1.

[0026] Simultaneously, the water flow through the main recirculation pipeline 1 is controlled by the main control valve 401, the pressure in the main control valve 401 is regulated by the pressure relief device 402, the throttling control valve 602 is installed by the fixed bracket 601, the water flow direction in the main control valve 401 is regulated by the throttling control valve 602, and the water flow in the main control valve 401 is diverted by the branch water pipe 701 to avoid excessive water flow velocity, which would cause high water pressure in the main recirculation pipeline 1 and reduce the vibration caused by excessive water flow velocity in the main recirculation pipeline 1. The branch water pipe 701 is connected to other pipes by the mounting flange 702, and the pressure reducing channel baffle 802 is installed by the fixed rod 801 to reduce the water pressure in the branch water pipe 701.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A condensate recirculation pipeline with a vibration damping and noise reduction structure, comprising a recirculation pipeline body (1), characterized in that: It also includes an installation ring (301), a throttling orifice plate (302), a flow velocity detector (303), a support mounting bracket (304), an auxiliary flow-pushing auger (305), a waterproof motor (306), a fiber optic grating sensing layer (307), a support bracket (308), and a vibration detector (309). The installation ring (301) is provided on the inner side of the recirculation pipeline body (1), the throttling orifice plate (302) is provided on the inner side of the installation ring (301), and the flow velocity detector is provided inside the installation ring (301). (303) A support mounting bracket (304) is provided on one side of the mounting ring (301), an auxiliary flow-pushing auger (305) is provided on one side of the support mounting bracket (304), a waterproof motor (306) is provided on the other side of the support mounting bracket (304), a fiber optic grating sensing layer (307) is provided inside the recirculation pipe body (1), a support bracket (308) is provided on the outside of the recirculation pipe body (1), and a vibration detector (309) is provided on the top surface of the support bracket (308).

2. The condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 1, characterized in that: An auxiliary mounting bracket (201) is provided on the outside of the main body (1) of the recirculation pipeline, a shock-absorbing pad (202) is provided on the inside of the auxiliary mounting bracket (201), and a mounting plate (203) is provided on the top surface of the auxiliary mounting bracket (201).

3. The condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 1, characterized in that: A main control valve (401) is provided at one end of the main body of the recirculation pipeline (1), and a pressure relief device (402) is provided on the top surface of the main control valve (401).

4. A condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 3, characterized in that: A mounting platform (501) is provided on one side of the main control valve (401), and a central control panel (502) is provided on one side of the mounting platform (501).

5. A condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 3, characterized in that: A fixed bracket (601) is provided on the bottom surface of the main control valve (401), and a throttling control valve (602) is provided at the bottom end of the fixed bracket (601).

6. A condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 3, characterized in that: Both sides of the main control valve (401) are provided with branch water pipes (701), and one end of the branch water pipe (701) is provided with an installation flange (702).

7. A condensate minimum flow recirculation pipeline with a vibration damping and noise reduction structure according to claim 6, characterized in that: The inside of the diversion pipe (701) is provided with a fixing rod (801), and the outside of the fixing rod (801) is provided with a pressure reducing channel partition (802).