A wheel-type anemometer for high humidity environments
By introducing a cylinder heating device and sensor system into the wheel anemometer, the problem of low measurement accuracy of anemometer in high humidity environments is solved, and accurate wind speed measurement in high humidity environments is achieved.
Patent Information
- Application Number
- CN201810973331.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-08-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2038-08-24
AI Technical Summary
Ordinary anemometers cannot obtain good measurement accuracy in high humidity environments, because when used in high humidity environments, the speed sensor will affect the measurement accuracy due to "condensation".
A wheel anemometer for high humidity environments is designed, including a horn-shaped air inlet, heating cylinder, air outlet, cylinder heating device, mica paper, rotary wing wheel, temperature and humidity sensor, humidity sensor, reflection The photoelectric sensor and controller heat the air through a cylinder heating device to prevent the rotating wing wheel from condensing, and automatically adjust the heating power through the sensor and controller to adapt to different humidity environments.
Effectively prevent the 'condensation' phenomenon of rotating wing wheels, improve the measurement accuracy of the anemometer in high humidity environment, and reduce the resistance to air by winding into a cylindrical structure and triangular bracket, making heating more uniform and safe reliable.
Smart Images
Figure CN110857949B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a wheel-type anemometer used in a high-humidity environment, belonging to the technical field of anemometers. Background Art
[0002] Anemometer is a basic instrument for measuring air flow velocity, and is widely used in power, steel, petrochemical, energy conservation and other industries. At present, the anemometer technology is relatively mature. Some use the relationship between flow velocity and impeller speed to measure wind speed, some use the relationship between flow velocity and sensor temperature to measure wind speed, and some use the relationship between flow velocity and acoustic pulsation time difference to measure wind speed, thus forming different types of anemometers, commonly used ones are cup anemometer, propeller anemometer, hot wire anemometer, ultrasonic anemometer, etc.
[0003] Although anemometer technology is mature and different types of anemometers have their own applicable use occasions, ordinary anemometers can generally only measure the air velocity in ordinary environments, and for some special environments, the use of ordinary anemometers cannot obtain good measurement accuracy. Among them, special measurement environments with high air humidity, for example, in the spray environment in the cooling tower of a power station, the air humidity is as high as 100%, while the use environment indicators of ordinary anemometers on the market are mostly below 80% humidity. This is because when used in a high humidity environment, the ordinary anemometer will affect the measurement accuracy due to the "condensation" of the velocity sensing parts. Therefore, it is necessary to develop a wheel anemometer for high humidity environments based on the original ordinary wheel anemometer. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide a wheel-type anemometer for high humidity environment, which solves the problem that the current common wheel-type anemometer cannot be used in high humidity environment.
[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:
[0006] A wheel-type anemometer for high humidity environment, comprising a trumpet-shaped air inlet cylinder, a heat-increasing cylinder, an air outlet cylinder, a cylinder-type heating device, mica paper, a rotating wing wheel, a temperature and humidity sensor, a humidity sensor, a reflective photoelectric sensor, a controller, and an adjustable DC voltage-stabilized power supply;
[0007] The trumpet-shaped air inlet cylinder, the heating cylinder, and the air outlet cylinder are connected and fixed in sequence, the cylinder-type heating device is fixed in the heating cylinder by a bracket, mica paper is pasted on the inner wall of the heating cylinder around the cylinder-type heating device, the rotating wing wheel is installed in the air outlet cylinder by a bracket, the temperature and humidity sensor is installed at the air inlet end of the heating cylinder, the humidity sensor and the reflective photoelectric sensor are installed in the air outlet cylinder, wherein the reflective photoelectric sensor is directly facing the blades of the rotating wing wheel;
[0008] The controller is electrically connected to the temperature and humidity sensor, the humidity sensor, the reflective photoelectric sensor, and the adjustable DC regulated power supply respectively, and the adjustable DC regulated power supply is electrically connected to the cylinder heating device.
[0009] As a preferred example, the cylindrical heating device is coaxially arranged with the heating cylinder.
[0010] As a preferred example, the bracket adopts a triangular bracket, which is composed of an inner ring, an outer ring, and three connecting edges connecting the inner ring and the outer ring. The triangular bracket is fixed at both ends of the cylindrical heating device, the triangular bracket is fixed at both ends of the rotating wing wheel, and then connected and fixed to the inner wall of the heating cylinder and the air outlet cylinder through the outer ring of the triangular bracket.
[0011] As a preferred example, the cylindrical heating device uses a heating wire wound into a cylindrical structure.
[0012] The beneficial effects of the present invention are as follows: a cylindrical heating device is arranged before the rotating wing wheel, and the cylindrical heating device is used to heat the inflowing air to increase the air temperature, thereby preventing the "condensation" phenomenon of the rotating wing wheel from occurring, and avoiding the problem that the anemometer cannot be used in a high humidity environment; the cylindrical heating device is wound into a cylindrical structure, and the cylindrical structure can not only reduce the resistance to the air, but also heat the air inside and outside the cylindrical structure at the same time, so that the heating of the inflowing air is more uniform; in order to further reduce the resistance to the air, the cylindrical heating device and the rotating wing wheel are both fixed by a triangular bracket with a small volume but a firm structure; Mica paper is arranged in the heating tube. The mica paper has the property of fire-resistant insulation, making the heating tube part safer and more reliable. A temperature and humidity sensor is arranged at the air inlet end of the heating tube to detect the initial temperature and humidity of the air. A humidity sensor and a reflective photoelectric sensor are arranged in the air outlet tube to detect the humidity of the outlet air and the wind speed corresponding to the rotation speed of the rotating impeller. Based on the initial temperature and humidity and the outlet air humidity, the output power of the adjustable DC regulated power supply is controlled by the controller, thereby controlling the heating power of the tube-type heating device, providing a hardware basis for automatically adjusting the humidity, and being applicable to wind speed measurement in various humidity environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the internal structure of the present invention;
[0014] Figure 2 It is a structural schematic diagram of the air inlet end of the present invention.
[0015] In the figure: a trumpet-shaped air inlet tube 1, a heat increasing tube 2, an air outlet tube 3, a cylindrical heating device 4, mica paper 5, a rotating wing wheel 6, a temperature and humidity sensor 7, a humidity sensor 8, a reflective photoelectric sensor 9, a controller 10, an adjustable DC regulated power supply 11, and a bracket 12. DETAILED DESCRIPTION
[0016] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.
[0017] like Figure 1 As shown, a wheel-type anemometer for high humidity environment includes a trumpet-shaped air inlet tube 1, a heat increasing tube 2, an air outlet tube 3, a tube-type heating device 4, mica paper 5, a rotating wing wheel 6, a temperature and humidity sensor 7, a humidity sensor 8, a reflective photoelectric sensor 9, a controller 10, and an adjustable DC regulated power supply 11;
[0018] The trumpet-shaped air inlet cylinder 1, the heating cylinder 2, and the air outlet cylinder 3 are connected and fixed in sequence, the cylinder-type heating device 4 is fixed in the heating cylinder 2 through a bracket 12, and mica paper 5 is pasted on the inner wall of the heating cylinder 2 around the cylinder-type heating device 4. The rotating wing wheel 6 is installed in the air outlet cylinder 3 through a bracket, and the temperature and humidity sensor 7 is installed at the air inlet end of the heating cylinder 2. The humidity sensor 8 and the reflective photoelectric sensor 9 are installed in the air outlet cylinder 3, wherein the reflective photoelectric sensor 9 is directly facing the blades of the rotating wing wheel 6;
[0019] The circuit connection relationship is as follows: the controller 10 is electrically connected to the temperature and humidity sensor 7 , the humidity sensor 8 , the reflective photoelectric sensor 9 , and the adjustable DC regulated power supply 11 , and the adjustable DC regulated power supply 11 is electrically connected to the tubular heating device 4 .
[0020] In the embodiment, the controller 10 adopts an AT89C52 series single chip microcomputer; the temperature and humidity sensor 7 adopts an HTU21D temperature and humidity sensor; the humidity sensor 8 adopts an HIH-3602C humidity sensor; and the reflective photoelectric sensor 9 adopts an ST188 reflective photoelectric sensor.
[0021] The cylindrical heating device 4 is coaxially arranged with the heat increasing cylinder 2. The cylindrical heating device 4 uses an electric heating wire wound into a cylindrical structure.
[0022] like Figure 2 As shown, the bracket 12 is a triangular bracket, which is composed of an inner ring, an outer ring, and three connecting edges connecting the inner ring and the outer ring.
[0023] The triangular bracket is fixed at both ends of the cylindrical heating device 4, the triangular bracket is fixed at both ends of the rotating wing wheel 6, and then connected and fixed to the inner wall of the heating cylinder 2 and the air outlet cylinder 3 through the outer ring of the triangular bracket.
[0024] Working principle: a cylindrical heating device 4 is arranged before the rotating wing wheel 6. The cylindrical heating device 4 is used to heat the inflowing air to increase the air temperature, so as to achieve the purpose of reducing the air humidity under the condition of unchanged moisture content, thereby preventing the rotary wing wheel 6 from "condensing" and avoiding the problem that the anemometer cannot be used in a high humidity environment; a cylindrical heating device 4 is adopted which is wound into a cylindrical structure. The cylindrical structure can not only reduce the resistance to the air, but also heat the air inside and outside the cylindrical structure at the same time, so that the heating of the inflowing air is more uniform; in order to further reduce the resistance to the air, the cylindrical heating device 4 and the rotating wing wheel 6 are fixed with a triangular bracket which is small in volume but firm in structure; mica paper 5 is arranged in the heating cylinder 2. The mica paper 5 has the property of fire-resistant insulation, so that the heating cylinder 2 part is more secure. Fully reliable; by arranging a temperature and humidity sensor 7 at the air inlet end of the heating cylinder 2 to detect the initial temperature and humidity of the air, a humidity sensor 8 and a reflective photoelectric sensor 9 are arranged in the air outlet cylinder 3. The humidity sensor 8 can detect the humidity of the outlet wind. The reflective photoelectric sensor 9 is an existing electrical component, which emits a specific light, which is received and counted after being reflected by the blades. By calculating the number of times the blades reflect the light per unit time, the rotation speed of the rotating impeller 6 can be measured, and the wind speed corresponding to the rotation speed of the rotating impeller 6 can be detected. Based on the initial temperature and humidity and the outlet humidity, the controller 10 controls the output power of the adjustable DC regulated power supply 11, thereby controlling the heating power of the cylinder heating device 4, providing a hardware basis for automatically adjusting the humidity, and being applicable to wind speed measurement in various humidity environments.
[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.
Claims
1. A wheel anemometer for use in high humidity environments, characterized in that: It includes a trumpet-shaped air inlet cylinder, a heat-increasing cylinder, an air outlet cylinder, a cylinder-type heating device, mica paper, a rotating wing wheel, a temperature and humidity sensor, a humidity sensor, a reflective photoelectric sensor, a controller, and an adjustable DC voltage-stabilized power supply; The trumpet-shaped air inlet cylinder, the heating cylinder, and the air outlet cylinder are connected and fixed in sequence, the cylinder-type heating device is fixed in the heating cylinder by a bracket, mica paper is pasted on the inner wall of the heating cylinder around the cylinder-type heating device, the rotating wing wheel is installed in the air outlet cylinder by a bracket, the temperature and humidity sensor is installed at the air inlet end of the heating cylinder, the humidity sensor and the reflective photoelectric sensor are installed in the air outlet cylinder, wherein the reflective photoelectric sensor is directly facing the blades of the rotating wing wheel; The controller is electrically connected to the temperature and humidity sensor, the humidity sensor, the reflective photoelectric sensor, and the adjustable DC regulated power supply, respectively, and the adjustable DC regulated power supply is electrically connected to the cylindrical heating device; The cylindrical heating device is arranged coaxially with the heat increasing cylinder; The bracket adopts a triangular bracket, which is composed of an inner circle ring, an outer circle ring, and three connecting edges connecting the inner circle ring and the outer circle ring.