CN213600140U - Flow detection device for hydropower station - Google Patents

Abstract

The utility model provides a power station flow detection device belongs to electromechanical technical field. The water inlet pipe, the water outlet pipe and the mounting pipe are included, the mounting pipe is connected with the tail end of the water inlet pipe and the starting end of the water outlet pipe, a plurality of bypass water channels are uniformly arranged on the mounting pipe in the circumferential direction, a sampling opening is formed at the inlet of each bypass water channel, a detection part with a large aperture is arranged in the middle of each bypass water channel, and a flowmeter is arranged at the detection part. The utility model has the advantages of detect the precision height.

Description

Flow detection device for hydropower station

Technical Field

The utility model belongs to the technical field of electromechanics, a power station flow detection device is related to.

Background

The main characteristics of the overflow of the hydraulic turbine in the hydropower station are large flow, large diameter of the pressure steel pipe and very high requirements on a flowmeter and a measuring method. In the prior art, a bypass pipe is arranged on a main water pipe, and a detection instrument is arranged at the position of the bypass pipe with a flow corresponding relation, so that the requirements of detection equipment can be reduced, and the detection difficulty is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flow detection device for hydropower station aiming at the above-mentioned problem that exists in the prior art, the utility model aims to solve the technical problem of how to improve the detection precision.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a power station flow detection device, its characterized in that is taken over including intaking, play water and takes over and an installation pipe, the end that the installation union coupling was taken over into the water and the top of taking over of play water, a plurality of bypass water channels have evenly been seted up to circumference on the installation pipe, and the entrance in each bypass water channel has a sample connection, the middle part in bypass water channel has the great detection portion in an aperture, detection portion department is provided with the flowmeter.

Furthermore, a jack is formed in the installation pipe, a plugging rod is inserted into the jack, and the plugging rod can plug the bypass water channels at the two ends of the detection part when being inserted into the jack.

Furthermore, each plugging rod is fixedly connected with a control ring, and the control ring is connected to the water outlet connecting pipe in a sliding manner.

Further, the flowmeter is a V-cone flowmeter.

The V-cone flowmeter has lower requirement on the space of a detection position, so that the plugging rod has an action space under the condition that the flowmeter does not need to be detached.

Through a plurality of flowmeter equipartitions in the outside of installation pipe, make and detect a plurality of data of obtainable simultaneously under same position, the same state, average each data not only can reduce the error, but also can avoid the individual error that single detecting instrument exists when detecting.

Through setting up the shutoff pole, can be at the direct entry and the export of a plurality of bypass water courses of shutoff of dismouting flow timing to make the middle part of bypass water course, the department of detecting promptly is in the closed condition, the dismouting and the maintenance of the flowmeter of being convenient for.

Drawings

Fig. 1 is a schematic structural view of the detection device in a shutdown state.

Fig. 2 is a schematic structural diagram of the detection device in an operating state.

In the figure, 1, a water inlet connecting pipe; 2. a water outlet connecting pipe; 3. installing a pipe; 4. a bypass waterway; 41. a sampling port; 42. a detection unit; 5. a flow meter; 6. a plugging rod; 7. a control loop.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the water inlet pipe 1, the water outlet pipe 2 and the installation pipe 3 are included, the installation pipe 3 is connected with the tail end of the water inlet pipe 1 and the starting end of the water outlet pipe 2, a plurality of bypass water channels 4 are uniformly arranged on the installation pipe 3 in the circumferential direction, a sampling port 41 is arranged at the inlet of each bypass water channel 4, a detection part 42 with a large aperture is arranged in the middle of each bypass water channel 4, and a flowmeter 5 is arranged at the detection part 42.

The installation pipe 3 is provided with a jack, a plugging rod 6 is inserted into the jack, and the plugging rod 6 can plug the bypass water channels 4 at the two ends of the detection part 42 when inserted into the jack.

Each plugging rod 6 is fixedly connected with a control ring 7, and the control ring 7 is connected on the water outlet connecting pipe 2 in a sliding way.

The flowmeter 5 is a V-cone flowmeter 5, and the V-cone flowmeter 5 has low requirements for the space of a detection position, so that the plugging rod 6 has an action space under the condition that the flowmeter 5 does not need to be detached.

Through a plurality of flowmeters 5 equipartitions in the outside of installation pipe 3, make and detect a plurality of data of can obtaining simultaneously under same position, the same state, average not only can reduce the error to each data, but also can avoid the individual error that single detecting instrument exists when detecting.

Through setting up shutoff pole 6, can be when dismouting flowmeter 5 direct shutoff a plurality of bypass water course 4 the entry and export to make the middle part of bypass water course 4, detection portion 42 is in the closed condition everywhere promptly, the dismouting and the maintenance of flowmeter 5 of being convenient for.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (4)

1. The utility model provides a power station flow detection device, its characterized in that is taken over (1), goes out water and takes over (2) and an installation pipe (3) including intaking, the end of intaking taking over (1) and the top of going out water and taking over (2) are connected in installation pipe (3), a plurality of bypass water channels (4) have evenly been seted up to circumference on installation pipe (3), and the entrance of each bypass water channel (4) has a sample connection (41), the middle part of bypass water channel (4) has a detection portion (42), detection portion (42) department is provided with flowmeter (5).

2. The flow detection device of the hydropower station according to claim 1, wherein the installation pipe (3) is provided with a plug hole, a plugging rod (6) is inserted into the plug hole, and the plugging rod (6) can plug the bypass water channels (4) at two ends of the detection part (42) when inserted into the plug hole.

3. A flow sensing device in a hydroelectric power station according to claim 2, wherein each blocking rod (6) is fixedly connected with a control ring (7), and the control ring (7) is slidably connected with the water outlet connecting pipe (2).

4. A hydropower station flow detection device according to claim 1, 2 or 3, characterized in that the flow meter (5) is a V-cone flow meter (5).

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