Dynamic pressure testing system for fan

Abstract

The utility model discloses a dynamic pressure testing system for a fan, and relates to the field of pressure testing. A pressure simulation device for a fan dynamic pressure test system comprises a test pipeline, a first electric butterfly valve and a second electric butterfly valve. The first electric butterfly valve comprises a first valve plate, and the diameter of the first valve plate is smaller than the inner diameter of the test pipeline; the second electric butterfly valve comprises a second valve plate, and the diameter of the second valve plate is equal to the inner diameter of the test pipeline; the dynamic pressure test system for the fan further comprises a data acquisition device and a capacitive pressure sensor. The fan dynamic pressure test system has the advantages of high test efficiency, low test cost and small test result error.

Description

Technical Field

[0001] This utility model belongs to the field of pressure testing, specifically relating to a dynamic pressure testing system for wind turbines. Background Technology

[0002] Magnetic levitation blowers, as an advanced type of fluid machinery, play a crucial role in numerous fields such as wastewater treatment and industrial production. They offer significant advantages including high efficiency, energy saving, low noise, and oil-free operation, meeting the demands of modern industry for environmentally friendly and efficient equipment. With the continuous development of various industries, the performance requirements for magnetic levitation blowers are becoming increasingly stringent, necessitating a more accurate evaluation of their performance in practical applications.

[0003] While on-site testing at actual customer locations can more accurately reflect the performance of magnetic levitation blowers, it also presents numerous challenges. Firstly, on-site testing requires significant time, manpower, and resources, and may disrupt customer production. Secondly, different customers have vastly different on-site conditions, making comprehensive testing and analysis under various circumstances difficult. Furthermore, on-site testing is also affected by environmental factors, making it challenging to guarantee the repeatability and stability of test results.

[0004] The existing patent CN202410041111.0 describes a test method and test equipment for a magnetic levitation blower. It places the magnetic levitation blower in an electrical cabinet and uses data obtained from whole-machine testing to determine its performance. However, placing the magnetic levitation blower in an electrical cabinet may limit the diversity of operating environments. Whole-machine testing involves the coordinated work of multiple components and systems. A malfunction or abnormality in any component may affect the accuracy of the test results.

[0005] Therefore, a more realistic and accurate customer site simulation system meets this need, and can simulate various actual customer site conditions as much as possible in a laboratory or specific testing environment, providing reliable technical support for the research, development, production and selection of magnetic levitation blowers. Utility Model Content

[0006] Given the shortcomings of existing technologies, on-site testing requires a large amount of resources, and the varying on-site environments make comprehensive analysis difficult. This utility model discloses a dynamic pressure testing system for wind turbines, which simulates the on-site test environment by using two electric butterfly valves with different opening degrees, thereby achieving comprehensive analysis of dynamic pressure.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pressure simulation device for a wind turbine dynamic pressure testing system, comprising:

[0009] The test pipe is connected to the air outlet of the fan via a flange;

[0010] A first electric butterfly valve, comprising a first valve plate, wherein the diameter of the first valve plate is smaller than the inner diameter of the test pipe;

[0011] The second electric butterfly valve includes a second valve plate, the diameter of which is equal to the inner diameter of the test pipe.

[0012] The first electric butterfly valve is located on the side closer to the fan, and the second electric butterfly valve is located on the side farther away from the fan; the opening degree of the first and second electric butterfly valves is adjustable.

[0013] Preferably, the first electric butterfly valve further includes a first valve stem and a first actuator; the first actuator and the first valve stem are connected by a first coupling, one end of the first coupling is connected to the output shaft of the first actuator, and the other end is connected to the upper end of the first valve stem; the first valve plate is installed at the lower end of the first valve stem; the first actuator drives the first valve stem to rotate by reducing the speed and increasing the torque through an internal reducer, and the first valve stem drives the first valve plate to rotate.

[0014] Preferably, the first electric butterfly valve further includes a first valve body, the upper end of which is provided with a mounting groove for accommodating the first valve stem.

[0015] Preferably, the second electric butterfly valve further includes a second valve stem and a second actuator; the second actuator and the second valve stem are connected by a second coupling, one end of the second coupling is connected to the output shaft of the second actuator, and the other end is connected to the upper end of the second valve stem; the second valve plate is installed at the lower end of the second valve stem; the second actuator drives the second valve stem to rotate by reducing the speed and increasing the torque through an internal reducer, and the second valve stem drives the second valve plate to rotate.

[0016] Preferably, the second electric butterfly valve further includes a second valve body, the upper end of which is provided with a mounting groove for accommodating the second valve stem.

[0017] Preferably, the opening degree of the first valve plate is 0-50%; the opening degree of the second valve plate is 20%-100%.

[0018] A dynamic pressure testing system for wind turbines further includes a data acquisition device connected to the signal output terminal of the wind turbine.

[0019] Preferably, the data acquisition device acquires data information from inside the wind turbine via a USB or RS-485 serial communication interface.

[0020] A dynamic pressure testing system for a wind turbine also includes a capacitive pressure sensor located at the outlet of the wind turbine for real-time monitoring of the outlet pressure.

[0021] Positive and beneficial effects

[0022] A dynamic pressure testing system for fans uses two electric butterfly valves of different sizes on two valve plates to perform various simulation tests, simulating various pressure changes. This allows for the early detection of potential problems in the fans, enabling timely improvements, increasing the stability of the air supply equipment in practical applications, reducing the impact of sudden equipment shutdowns on production, improving the adaptability of the fans, reducing the workload of commissioning personnel on-site, and lowering testing costs. It also helps to detect various problems in advance and reduce the need for after-sales personnel to visit the site for follow-up work. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a dynamic pressure testing system for wind turbines according to the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of an electric butterfly valve for a dynamic pressure testing system for a fan, according to this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of a wind turbine dynamic pressure testing system according to the present invention during the testing process;

[0026] Figure 4 This is a schematic diagram of the structure of a wind turbine dynamic pressure testing system according to the present invention during the testing process;

[0027] In the diagram: 1 Magnetic levitation blower, 2 First electric butterfly valve, 3 Second electric butterfly valve, 4 Test pipeline, 5 Capacitive pressure sensor, 201 First valve plate, 202 First valve body, 203 First valve stem, 204 First actuator, 301 Second valve plate, 302 Second valve body, 303 Second valve stem, 304 Second actuator. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0031] A pressure simulation device for a dynamic pressure testing system of a blower includes: a blower 1, a first electric butterfly valve 2, a second electric butterfly valve, a test pipeline 4, and a capacitive pressure sensor 5; the test pipeline 4 is located on the right side of the magnetically levitated blower 1 and is connected via a flange; the test pipeline 4 has the first electric butterfly valve 2 and the second electric butterfly valve 3, as referenced. Figure 1 .

[0032] In a specific embodiment, reference is made to... Figure 2 The first electric butterfly valve 2 includes a first valve plate 201, a first valve body 202, a first valve stem 203, and a first actuator 204; the upper end of the first valve body 202 is provided with a mounting groove for accommodating the first valve stem 203; the first valve stem 203 drives the rotation of the first valve plate 201 by transmitting torque, adjusts the opening of the first valve plate 201, and thus adjusts the flow rate of fluid to simulate different working conditions.

[0033] The second electric butterfly valve 3 includes a second valve plate 301, a second valve body 302, a second valve stem 303, and a second actuator 304; the upper end of the second valve body 302 is provided with a mounting groove for accommodating the second valve stem 303.

[0034] In a specific embodiment, reference is made to... Figure 3 and Figure 4When the opening of the first valve plate 201 is 0 and the opening of the second valve plate 301 is a fixed value between 20% and 100%, the pressure in the simulated on-site working condition reaches its maximum value, and the relative pressure in the pipeline reaches its maximum value. When the opening of the first valve plate 201 is parallel to the second valve plate 301, the pressure in the simulated on-site working condition reaches its minimum value, and the relative pressure in the pipeline is at its minimum. The opening of the second valve plate 301 is changed to a fixed value, and the test is repeated. The test results show that when the opening of the second valve plate 301 remains unchanged, as the opening of the first valve plate 201 gradually increases, the pressure in the simulated on-site working condition gradually decreases, and the relative pressure in the pipeline also gradually decreases. As the opening of the second valve plate 301 increases, the relative pressure in the pipeline decreases. Thus, different working conditions can be simulated by adjusting the first and second electric butterfly valves.

[0035] A dynamic pressure testing system for wind turbines further includes a data acquisition device connected to the signal output terminal of the wind turbine.

[0036] In this invention, the data acquisition device acquires data information from inside the wind turbine via a USB or RS-485 serial communication interface.

[0037] A dynamic pressure testing system for a wind turbine also includes a capacitive pressure sensor located at the outlet of the wind turbine for real-time monitoring of the outlet pressure.

[0038] In a specific embodiment, the data acquisition device collects at least the fan's rotational speed, temperature, voltage, and current. The capacitive pressure sensor is used to measure the dynamic pressure of the fan.

[0039] The present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A pressure simulation device for a dynamic pressure testing system of a wind turbine, characterized in that, include: The test pipe is connected to the air outlet of the fan via a flange; A first electric butterfly valve is installed on the test pipeline. The first electric butterfly valve includes a first valve plate, the diameter of which is smaller than the inner diameter of the test pipeline. A second electric butterfly valve is installed on the test pipeline. The second electric butterfly valve includes a second valve plate, the diameter of which is equal to the inner diameter of the test pipeline. The first electric butterfly valve is located on the side closer to the fan, and the second electric butterfly valve is located on the side farther away from the fan; the opening degree of the first and second electric butterfly valves is adjustable.

2. The pressure simulation device for a dynamic pressure testing system of a wind turbine according to claim 1, characterized in that, The first electric butterfly valve further includes a first valve stem and a first actuator; the first actuator and the first valve stem are connected by a first coupling, one end of the first coupling is connected to the output shaft of the first actuator, and the other end is connected to the upper end of the first valve stem; the first valve plate is installed at the lower end of the first valve stem; the first actuator drives the first valve stem to rotate by reducing the speed and increasing the torque through an internal reducer, and the first valve stem drives the first valve plate to rotate.

3. The pressure simulation device for a dynamic pressure testing system of a wind turbine according to claim 2, characterized in that, The first electric butterfly valve also includes a first valve body, the upper end of which is provided with a mounting groove for accommodating the first valve stem.

4. The pressure simulation device for a dynamic pressure testing system of a wind turbine according to claim 1, characterized in that, The second electric butterfly valve also includes a second valve stem and a second actuator; the second actuator and the second valve stem are connected by a second coupling, one end of which is connected to the output shaft of the second actuator, and the other end is connected to the upper end of the second valve stem; the second valve plate is installed at the lower end of the second valve stem; the second actuator drives the second valve stem to rotate by reducing the speed and increasing the torque through an internal reducer, and the second valve stem drives the second valve plate to rotate.

5. A pressure simulation device for a dynamic pressure testing system for wind turbines according to claim 4, characterized in that, The second electric butterfly valve also includes a second valve body, the upper end of which is provided with a mounting groove for accommodating the second valve stem.

6. A pressure simulation device for a dynamic pressure testing system for wind turbines according to claim 1, characterized in that, The opening degree of the first valve plate is 0% to 100%, and the opening degree of the second valve plate is 20% to 100%.

7. A dynamic pressure testing system for wind turbines, characterized in that, The device includes any one of the devices described in claims 1-6, and further includes a data acquisition device connected to the signal output terminal of the fan.

8. A dynamic pressure testing system for wind turbines according to claim 7, characterized in that, The data acquisition device obtains data information from inside the wind turbine via a USB or RS-485 serial communication interface.

9. A dynamic pressure testing system for wind turbines, characterized in that, The device includes any one of claims 1-6, and further includes a capacitive pressure sensor located at the air outlet of the fan for real-time monitoring of the air outlet pressure.

Images