Power station water turbine flow auxiliary detection device

Abstract

The utility model relates to the technical field of volume, flow, mass flow or liquid level measurement, in particular to a power station water turbine flow auxiliary detection device which comprises a device body, the device body internally comprises a drainage assembly and a metering assembly, and the drainage assembly is detachably connected with the metering assembly. The metering assembly at least comprises a metering block, a hanging ring, a fixing bolt for fixing the hanging ring on the metering block, and a liquid amount display tube communicated with the metering block; the drainage assembly at least comprises a flow guide pipe detachably communicated with the liquid medium flowing position of the water turbine. Through cooperation of the drainage assembly and the metering assembly and addition of the liquid amount display tube, rapid detection of the flow of the water turbine is achieved, the time period flow of the water turbine is introduced through the flow guide tube, the flow reaches the liquid amount display tube through the metering block, and through the position change of the floating block in the liquid amount display tube, visual display of the flow of the water turbine is achieved, and auxiliary measurement is achieved.

Description

Technical Field

[0001] This application relates to the field of volume, flow rate, mass flow rate or liquid level measurement technology, and in particular to an auxiliary detection device for the flow rate of a power plant turbine. Background Technology

[0002] A fluid flow detector with a built-in rechargeable battery can be charged by the fluid to achieve self-powered operation and thus flow detection. However, since the detector does not include battery power detection and charging management devices, this "charge as long as there is water flow" charging method is very unreasonable and is prone to battery overcharging, ultimately causing the flow detection to malfunction.

[0003] In the prior art, there is a Chinese utility model patent with publication number CN210893261U, dated June 30, 2020, entitled "A Fluid Flow Detection Device and a Fluid Flow Detection Valve," which discloses a device comprising: a power generation module, a power supply module, a main control module, and a charging management module. The power generation module outputs electrical energy using the mechanical energy of the fluid. The power supply module stores electrical energy through the charging management module and supplies power to the main control module and the charging management module. The main control module sends a charging command to the charging management module based on the power supply module's power information and determines the fluid flow information based on the output voltage and current of the power generation module. The charging management module determines whether to charge the power supply module based on the charging command.

[0004] The above technical solution manages the charging method effectively to avoid overcharging, thereby extending the power supply's lifespan and overcoming the shortened battery life caused by overcharging in existing technologies. This also enables stable flow detection. However, it still relies on electrical energy as a power source, which may not be suitable for some application scenarios. Utility Model Content

[0005] The inventors discovered through research that, in addition to traditional flow velocity detection, the flow rate of a water turbine can also be directly detected and judged by changes in flow volume, thus achieving rapid flow rate detection for water turbines.

[0006] The purpose of this application is to provide an auxiliary detection device for turbine flow in a power plant, which solves the technical problem that the prior art cannot provide an auxiliary detection device for rapid turbine flow detection by cooperating with a diversion component and a metering component.

[0007] According to one aspect of this application, a power plant turbine flow auxiliary detection device is provided, comprising a device body, wherein the device body includes a flow diversion component and a metering component, the flow diversion component and the metering component are detachably connected, the metering component includes at least a metering block, a hanging ring, a fixing bolt for fixing the hanging ring to the metering block, and a liquid volume display tube communicating with the metering block; the flow diversion component includes at least a flow guide pipe detachably connected to the liquid medium flow point of the turbine.

[0008] In some embodiments, a flow channel is provided within the metering block.

[0009] In some embodiments, the flow channel has at least a thick-walled side and a thin-walled side.

[0010] In some embodiments, the thick-walled side is at least 0.mm thicker than the thin-walled side.

[0011] In some embodiments, the outer wall of the liquid volume display tube is provided with at least one set of scale lines.

[0012] In some embodiments, a floating block that changes with the water level is placed inside the liquid level display tube.

[0013] In some embodiments, the middle region of the guide tube is connected to both a main tube and a secondary tube.

[0014] In some embodiments, the main pipe and the secondary pipe are arranged in parallel.

[0015] In some embodiments, the drainage assembly further includes at least an air pressure hole and a fixing ring, the fixing ring surrounding the circumferential surface of the air pressure hole and fixing the air pressure hole.

[0016] Compared with the prior art, this application achieves rapid detection of turbine flow rate by combining a flow diversion component and a metering component, and adding a liquid volume display tube. The flow rate of the turbine is introduced through the flow diversion pipe, reaches the liquid volume display tube through the metering block, and the turbine flow rate is intuitively displayed by the position change of the floating block in the liquid volume display tube, thus realizing auxiliary measurement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall isometric schematic diagram of the detection device of this application;

[0019] Figure 2 This is a schematic diagram of the flow channel structure of the detection device of this application;

[0020] Figure 3 This is a schematic diagram of the liquid volume display tube of the detection device of this application;

[0021] Figure 4 This is a schematic diagram showing the positions of the main and auxiliary pipes of the detection device in this application;

[0022] Figure 5 This is a diagram showing the working state of the floating block of the detection device in this application.

[0023] Legend:

[0024] 1-Metering block; 2-Fixing bolt; 3-Liquid volume display tube; 31-Scale metering line; 32-Floating block; 4-Hanging ring; 5-Air pressure hole; 6-Guide pipe; 61-Main pipe; 62-Secondary pipe; 7-Fixing ring; 8-Guide channel; 81-Thick-walled side; 82-Thin-walled side; 9-Drainage assembly; 10-Metering assembly; To avoid interference with technical features, some guide lines are dashed. Detailed Implementation

[0025] The following will refer to the appendices in the embodiments of this application. Figure 1-5 The technical solutions in the embodiments of this application will be clearly and completely described together. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Application Overview

[0027] The main purpose of turbine flow rate detection is to determine the turbine's flow rate and other parameters in order to calculate its efficiency and formulate a reasonable load distribution scheme. However, turbine flow rate detection faces significant challenges, specifically: turbine flow rates are typically large, making measurement difficult; the organization is complex and costly: the layout and installation of measuring equipment are complex and costly; the flow velocity within the flow channel is irregular: the flow velocity changes irregularly within the flow channel, making accurate measurement difficult; the measurement method is limited by equipment layout and inlet / outlet structure: the measurement method is limited by equipment layout and inlet / outlet structure, making implementation difficult; improving accuracy is difficult: due to the complex changes in flow velocity within the flow channel, improving measurement accuracy is challenging. Based on the above, this application proposes an auxiliary detection device suitable for assisting in turbine flow rate detection, which enables rapid detection of turbine flow rate through intuitive flow rate changes.

[0028] Example 1

[0029] This embodiment provides an auxiliary flow detection device for a power plant turbine, including a device body. The device body includes a flow diversion component 9 and a metering component 10, which are detachably connected. For details, refer to... Figure 1In this embodiment, the drainage component 9 and the metering component 10 are detachably connected by a connection structure, which can be a pipe fitting.

[0030] Furthermore, the metering assembly 10 includes at least a metering block 1, a hanging ring 4, a fixing bolt 2 that secures the hanging ring 4 to the metering block 1, and a liquid volume display tube 3 that communicates with the metering block 1. The hanging ring 4 is used to hang the device body after use, and it is securely connected by the fixing bolt 2 to ensure safe hanging. The outer circumferential surface of the metering block 1 is connected to the end of the liquid volume display tube 3, as shown in the attached figure. Figure 2 .

[0031] Furthermore, the diversion assembly 9 includes at least a guide pipe 6 detachably connected to the flow point of the liquid medium in the turbine. Specifically, in actual operation, the guide pipe 6 is detachably and continuously connected to any point on the turbine through which the fluid medium flows, thus enabling the introduction of the fluid medium. It should be noted that the fluid medium can be water or other flowable flexible materials.

[0032] In some embodiments, the metering block 1 has a guide channel 8, which has at least a thick-walled side 81 and a thin-walled side 82, with the thick-walled side 81 being at least 0.5 mm thicker than the thin-walled side 82. It should be noted that the thick-walled side 81 being at least 0.5 mm thicker than the thin-walled side 82 ensures that the inner wall of the pipe is protected after the water flows into the pipe.

[0033] In some embodiments, the outer wall of the liquid level display tube 3 is provided with at least one set of graduated measuring lines 31, and a floating block 32 that changes with the water level is placed inside the liquid level display tube 3. (See attached diagram) Figure 5 When the liquid is injected into the turbine, the rising speed of the floating block 32 can be used for observation. At the same time, the rising height, water injection time, water injection volume, etc. can be used to indirectly assist in the measurement of the turbine flow rate.

[0034] In some embodiments, the middle region of the guide pipe 6 is connected to both the main pipe 61 and the secondary pipe 62, as shown in the attached figure. Figure 4 The main pipe 61 and the secondary pipe 62 are arranged in parallel. It should be noted that when the turbine flow rate is high, the water will flow in from the main pipe 61, and when the turbine flow rate is low, the water will flow in from the secondary pipe 62, thus achieving diversion.

[0035] Example 2

[0036] The technical features in this embodiment are basically the same as those described in Embodiment 1. The same technical features and solutions will not be repeated here; only the differences between Embodiment 2 and Embodiment 1 will be described. The diversion assembly 9 also includes at least a pressure hole 5 and a fixing ring 7. The fixing ring 7 surrounds the circumference of the pressure hole 5 and fixes the pressure hole 5. It should be noted that the pressure hole 5 changes the pressure within the guide pipe 6, thus redirecting the water flow within the guide pipe 6. Therefore, it can be understood that an external blower or similar device can be connected to the pressure hole 5.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this application. It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary detection device for the flow rate of a hydroelectric turbine in a power station, comprising a device body, characterized in that, The device body includes a flow guiding component (9) and a metering component (10). The flow guiding component (9) and the metering component (10) are detachably connected. The metering component (10) includes at least a metering block (1), a hanging ring (4), a fixing bolt (2) fixing the hanging ring (4) to the metering block (1), and a liquid volume display tube (3) communicating with the metering block (1). The flow guiding component (9) includes at least a flow guide tube (6) detachably connected to the liquid medium flow point of the water turbine.

2. The apparatus according to claim 1, characterized in that, The metering block (1) has a flow channel (8) inside.

3. The apparatus according to claim 2, characterized in that, The guide channel (8) has at least a thick-walled side (81) and a thin-walled side (82).

4. The apparatus according to claim 3, characterized in that, The thick-walled side (81) is at least 0.5 mm thicker than the thin-walled side (82).

5. The apparatus according to claim 1, characterized in that, The outer wall of the liquid volume display tube (3) is provided with at least one set of scale lines (31).

6. The apparatus according to claim 5, characterized in that, A floating block (32) that changes with the water level is placed inside the liquid level display tube (3).

7. The apparatus according to claim 1, characterized in that, The middle section of the guide pipe (6) is connected to the main pipe (61) and the secondary pipe (62).

8. The apparatus according to claim 7, characterized in that, The main pipe (61) and the secondary pipe (62) are arranged in parallel.

9. The apparatus according to claim 1, characterized in that, The drainage component (9) also includes at least a pressure hole (5) and a fixing ring (7), the fixing ring (7) is arranged around the circumference of the pressure hole (5) and fixes the pressure hole (5).

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