CN210893273U

CN210893273U - Special portable measuring device for cooling water flow of generator stator

Info

Publication number: CN210893273U
Application number: CN201921359246.2U
Authority: CN
Inventors: 王关人; 张译天; 皮新瑞; 贾冬
Original assignee: Datang Northeast Electric Power Test and Research Institute Co Ltd
Current assignee: Datang Northeast Electric Power Test and Research Institute Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-06-30
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a special measuring device of portable generator stator cooling water flow in electric power field, including flow calculation host computer, ultrasonic transducer and decide water-cooling pipe fixing device, the inside of flow calculation host computer is furnished with intelligent control system, be equipped with LCD screen, operating keyboard, USB interface, sensor socket and the wireless communication socket that is connected with intelligent control system on the front of flow calculation host computer, decide water-cooling pipe fixing device and constitute by horizontal scale, longitudinal scale, shock pad and water pipe clamp, real-time and average flow measurement is accurate, and is easy and simple to handle, and compact structure is light and handy, divides on-the-spot and two kind long-range measurement mode, is suitable for different on-the-spot test requirements.

Description

Special portable measuring device for cooling water flow of generator stator

Technical Field

The utility model relates to an electric power tech field specifically is a special measuring device of portable generator stator cooling water flow.

Background

In recent years, the generator unit shutdown and equipment damage accidents caused by the blockage of the cooling water pipeline of the generator stator are frequent, and the economic loss is serious. The ultrasonic method is used for detecting the flow of the generator fixed cold water pipe conveniently and quickly, and is widely used. The ultrasonic flowmeter can only detect real-time flow, cannot estimate average flow, can only carry out field measurement, and has poor test effect on the bent part of the water pipe. However, the existing method for detecting the blockage of the stator cooling water pipeline of the generator needs to compare average flow, the flow rate of the fixed cooling water of the generator is unstable, the real-time flow change is large, the average flow is difficult to estimate, the diameter of the fixed cooling water pipe is small, and the number of bending areas is large. The method is unqualified when the deviation of the flow of the cooling water of the stator bar of the similar generator measured by an ultrasonic method is more than 10 percent, and the conventional detector cannot accurately judge the blocking condition of the cooling water pipeline of the stator according to the national standard.

Based on this, the utility model designs a special measuring device of portable generator stator cooling water flow to solve the above-mentioned problem of mentioning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special measuring device of portable generator stator cooling water flow measures accurately, and is easy and simple to handle, and compact structure is light and handy, divides two kinds of measurement modes on scene and long-range, is suitable for different field test requirements to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special measuring device of portable generator stator cooling water flow, includes flow calculation host computer, ultrasonic transducer and decides water-cooling pipe fixing device, the inside of flow calculation host computer is furnished with intelligent control system, be equipped with LCD screen, operating keyboard, USB interface, sensor socket and the wireless communication socket that is connected with intelligent control system on the front of flow calculation host computer, decide water-cooling pipe fixing device and constitute by horizontal scale, longitudinal scale, shock pad and water pipe clamp.

Preferably, the flow rate calculation host is further provided with a detection signal lamp and a wireless transmission signal lamp which are electrically connected with the sensor socket and the wireless communication socket.

Preferably, the fixed water cooling pipe fixing device is installed on a back plate of the flow calculation host, the transverse scale is horizontally arranged on one side of the back plate of the flow calculation host, the longitudinal scale is longitudinally arranged in the middle of the back plate of the flow calculation host, and the transverse scale and the longitudinal scale are perpendicular to each other

Preferably, the water pipe clamps comprise two groups fixed on two sides of the flow calculation host backboard, and the two groups of water pipe clamps fix the fixed cold water pipe on the flow calculation host backboard.

Preferably, a damping pad is further fixed on the back plate of the flow calculation host, and the fixed cold water pipe penetrates through the damping pad.

Preferably, ultrasonic transducer is equipped with two sets ofly, two sets of ultrasonic transducer installs in the water pipe clamp, decides the cold water pipe and contacts with ultrasonic transducer, ultrasonic transducer adopts the concave surface focus design to be furnished with movable buckle.

Compared with the prior art, the beneficial effects of the utility model are that: the portable measuring device special for the flow of the cooling water pipe of the generator stator has the advantages of real-time and average flow measurement accuracy, simplicity and convenience in operation, compact and light structure, field and remote measurement modes, and suitability for different field test requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the back plate structure of the present invention;

fig. 3 is a flow calculation flow chart of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. operating a keyboard; 2. a liquid crystal screen; 3. detecting a signal lamp; 4. a wireless transmission signal lamp; 5. a sensor receptacle; 6. a wireless communication socket; 7. a USB interface; 8. an ultrasonic transducer; 9. a lateral scale; 10. A longitudinal scale; 11. a shock pad; 12. a water pipe clamp; 13. movable buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a portable special measuring device for generator stator cooling water flow comprises a flow calculation host, an ultrasonic transducer 8 and a fixed water cooling pipe fixing device, wherein an intelligent control system is arranged in the flow calculation host, the intelligent control system is a universal standard component or a component known by technicians in the field in the prior art, the structure and the principle of the intelligent control system can be known by technicians through technical manuals or conventional experimental methods, the real-time flow rate can be accurately calculated, and the average flow rate can be comprehensively estimated by combining a median filtering method and a recursion average filtering method in consideration of the detection requirement of national standards on the generator stator cooling water flow and the large numerical span of the conventional detection method; the front side of the flow calculation host is provided with a liquid crystal screen 2, an operation keyboard 1, a USB interface 7, a sensor socket 5 and a wireless communication socket 6 which are connected with an intelligent control system, an instrument is controlled through the operation keyboard 1, and the liquid crystal screen 2 displays data; the USB interface 7 is configured to lead out the test data quickly. Sensor socket 5 and wireless communication socket 6 realize long-range long-time measurement control, decide water-cooling pipe fixing device and press from both sides 12 by horizontal scale 9, longitudinal scale 10, shock pad 11 and water pipe and constitute.

The flow calculation host is also provided with a detection signal lamp 3 and a wireless transmission signal lamp 4 which are electrically connected with the sensor socket 5 and the wireless communication socket 6 and are used for displaying the working states of the sensors and the wireless communication devices which are arranged on the sensor socket 5 and the wireless communication socket 6.

The fixed water-cooling pipe fixing device is installed on a back plate of a flow calculation host, the transverse scale 9 is horizontally arranged on one side of the back plate of the flow calculation host, the longitudinal scale 10 is longitudinally arranged at the middle position of the back plate of the flow calculation host, the transverse scale 9 and the longitudinal scale 10 are perpendicular to each other, the longitudinal scale 10 is used for accurately measuring the diameter of the fixed water-cooling pipe, and the transverse scale 9 is used for confirming the transverse position of the ultrasonic transducer 8.

The water pipe clamps 12 comprise two groups fixed on two sides of the flow calculation host backboard, and the two groups of water pipe clamps 12 fix the fixed cold water pipe on the flow calculation host backboard.

The back plate of the flow calculation host is further fixed with a shock pad 11, and the fixed cold water pipe penetrates through the inside of the shock pad 11, so that pipe body vibration caused by the flow of the fixed cold water can be reduced.

Ultrasonic transducer is equipped with two sets ofly, two sets of ultrasonic transducer installs in water pipe clamp 12, decides the cold water pipe and contacts with ultrasonic transducer 8, can ensure that the instrument installation is firm, ultrasonic transducer adopts the concave surface focus design, improves ultrasonic wave propagation efficiency to be furnished with

movable buckle

13, 8 positions of ultrasonic transducer can freely be adjusted, improve and measure the accuracy.

The specific working principle is as follows:

the device passes through the flow calculation host computer, can accurately calculate real-time velocity of flow, and combine the composite filter method to predict average flow velocity of flow, ultrasonic transducer 8 adopts the concave surface focus design, improve ultrasonic wave propagation efficiency, but movable buckle 13 free adjustment ultrasonic transducer 8 positions, improve and measure the accuracy, install the special fixing device of deciding the cold water pipe on the backplate and can separate with the flow calculation host computer, realize long-range long-time measurement control, and decide special fixing device accessible shock pad 11 of cold water pipe and water pipe clamp 12, the smooth cold water pipe of deciding of firm and steady pinning.

A flow calculation process of a portable special measuring device for the flow of the cooling water of the generator stator is shown in figure 3. In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a special measuring device of portable generator stator cooling water flow which characterized in that: including flow calculation host computer, ultrasonic transducer and water-cooling pipe fixing device surely, the inside of flow calculation host computer is furnished with intelligent control system, be equipped with LCD screen, operating keyboard, USB interface, sensor socket and the wireless communication socket that is connected with intelligent control system on the front of flow calculation host computer, it comprises horizontal scale, longitudinal scale, shock pad and water pipe clamp to decide water-cooling pipe fixing device.

2. The portable special measuring device for the flow of the cooling water of the generator stator as claimed in claim 1, wherein: and the flow calculation host is also provided with a detection signal lamp and a wireless transmission signal lamp which are electrically connected with the sensor socket and the wireless communication socket.

3. The portable special measuring device for the flow of the cooling water of the generator stator as claimed in claim 1, wherein: the water cooling pipe fixing device is arranged on a back plate of the flow calculation host, the transverse scale is horizontally arranged on one side of the back plate of the flow calculation host, the longitudinal scale is longitudinally arranged in the middle of the back plate of the flow calculation host, and the transverse scale and the longitudinal scale are perpendicular to each other.

4. The portable special measuring device for the flow of the cooling water of the generator stator as claimed in claim 1, wherein: the water pipe clamps comprise two groups which are fixed on two sides of the back plate of the flow calculation host, and the two groups of water pipe clamps fix the fixed cold water pipe on the back plate of the flow calculation host.

5. The portable special measuring device for the flow of the cooling water of the generator stator as claimed in claim 1, wherein: a damping pad is further fixed on a back plate of the flow calculation host, and the fixed cold water pipe penetrates through the damping pad.

6. The portable special measuring device for the flow of the cooling water of the generator stator as claimed in claim 1, wherein: the ultrasonic transducers are arranged in two groups, the two groups of ultrasonic transducers are arranged in the water pipe clamp, the fixed cold water pipe is in contact with the ultrasonic transducers, and the ultrasonic transducers adopt a concave focusing design and are provided with movable buckles.