阅读说明：本技术 一种双金属热敏风速仪 (Bimetal thermosensitive anemometer ) 是由 朱又玄 于 2020-07-22 设计创作，主要内容包括：本发明公开了一种双金属热敏风速仪,包括壳体,所述壳体的上端面固定安装有外套筒,所述外套筒的内部套接安装有内套筒,所述外套筒开口处的内侧固定安装有卡块一,所述内套筒开口处的外侧固定安装有卡块二,所述内套筒的上端面固定安装有风速仪探头一,所述风速仪探头一的下端面固定安装有电热丝的一端。该双金属热敏风速仪,通过安装不同材质的双金属探头,防止可能存在的因素导致金属探头的电阻产生变化,无法正确测量风速,提高了测量的准确性,安装有保护罩,保护罩为左右开口结构,使热敏风速仪具有测量定向流速的功能,外部的保护套可以防止金属探头长时间与空气接触发生氧化反应,提高双金属热敏风速仪的使用寿命。(The invention discloses a bimetal thermosensitive anemoscope which comprises a shell, wherein an outer sleeve is fixedly installed on the upper end face of the shell, an inner sleeve is sleeved inside the outer sleeve, a first fixture block is fixedly installed on the inner side of an opening of the outer sleeve, a second fixture block is fixedly installed on the outer side of the opening of the inner sleeve, a first anemoscope probe is fixedly installed on the upper end face of the inner sleeve, and one end of an electric heating wire is fixedly installed on the lower end face of the first anemoscope probe. This bimetal heat-sensitive anemoscope, through the bimetal probe of installing different materials, the resistance that prevents the factor that probably exists from leading to metal probe changes, and unable correct measurement wind speed has improved the measuring accuracy, installs the safety cover, and the safety cover is left and right sides open structure, makes heat-sensitive anemoscope have the function of measuring directional velocity of flow, and outside protective sheath can prevent that metal probe from taking place oxidation reaction with the air contact for a long time, improves bimetal heat-sensitive anemoscope's life.)

1. A bimetal thermal anemometer comprises a shell (1), and is characterized in that: the upper end face of the shell (1) is fixedly provided with an outer sleeve (2), the inner part of the outer sleeve (2) is sleeved with an inner sleeve (3), the inner side of an opening of the outer sleeve (2) is fixedly provided with a first fixture block (4), the outer side of an opening of the inner sleeve (3) is fixedly provided with a second fixture block (5), the upper end face of the inner sleeve (3) is fixedly provided with a first anemoscope probe (7), the lower end face of the first anemoscope probe (7) is fixedly provided with one end of a heating wire (6), the other end of the heating wire (6) is fixedly arranged in the shell (1), the outer part of the inner sleeve (3) is fixedly provided with a protective cover (9) through a bearing, the first anemoscope probe (7) is positioned in the protective cover (9), the protective cover (9) is of a left-right opening structure, and the opening of the protective cover (9, the utility model discloses a wind turbine generator, including casing (1), interior side of safety cover (9), support fixed mounting have inlet fan (11), exhaust fan (12), the up end fixed mounting of casing (1) has another outer sleeve (2), inner skleeve (3), fixture block (4), fixture block two (5), heating wire (6), safety cover (9), filter screen (10), inlet fan (11), exhaust fan (12) and outer sleeve (2) one-to-one, the up end fixed mounting of another inner skleeve (3) has anemoscope probe two (8), the outside fixed mounting of casing (1) has control panel (13), draw-in groove (14) have been seted up to the left and right sides on casing (1) upper portion, the inboard movable mounting of draw-in groove (14) has fixture block three (15), the outside fixed mounting of fixture block three (15) has protective sheath (16).

2. The bi-metal heat sensitive anemometer of claim 1 wherein: the outer diameter of the inner sleeve (3) is smaller than the inner diameter of the outer sleeve (2), and the length of the outer sleeve (2) is the same as that of the inner sleeve (3).

3. The bi-metal heat sensitive anemometer of claim 1 wherein: the inner diameter of the first clamping block (4) is the same as the outer diameter of the inner sleeve (3), and the outer diameter of the second clamping block (5) is the same as the inner diameter of the outer sleeve (2).

4. The bi-metal heat sensitive anemometer of claim 1 wherein: the electric heating wire (6) is of a spring structure, and the outer diameter of the electric heating wire (6) is smaller than the inner diameter of the inner sleeve (3).

5. The bi-metal heat sensitive anemometer of claim 1 wherein: the outer diameter of the protective cover (9) is larger than the diameters of the anemoscope probe I (7) and the anemoscope probe II (8), and the anemoscope probe I (7) and the anemoscope probe II (8) are located between the air inlet fan (11) and the exhaust fan (12).

6. The bi-metal heat sensitive anemometer of claim 1 wherein: the protective sleeve (16) is of a lower end opening structure, and the inner side of the clamping groove (14) is tightly attached to the outer side of the clamping block III (15).

Technical Field

The invention relates to the technical field of anemometers, in particular to a bimetal thermosensitive anemometer.

Background

The heat-sensitive anemometer is a velocimeter which can convert flow velocity signals into electric signals, and can also measure fluid temperature or density, and has the advantages of small probe size, small interference to flow field, quick influence, capability of measuring unsteady flow velocity, very low velocity and the like.

At present, when the heat-sensitive anemoscope is used for measurement, a probe needs to be heated through an electric heating wire and is placed in air flow, heat dissipation capacity causes temperature change of the probe to cause resistance change, a flow speed signal is converted into an electric signal, the blown air flow in other directions enables the thermistor not to measure directional flow speed, the anemoscope probe is exposed outside air for a long time to generate oxidation reaction, measurement accuracy is affected, and measurement errors can be caused due to the temperature, the humidity and the like.

Disclosure of Invention

The invention aims to provide a bimetal thermal anemoscope, which aims to solve the problems that blowing airflow in other directions cannot enable a thermistor to measure directional flow velocity, an anemoscope probe generates oxidation reaction after being exposed outside air for a long time, measurement accuracy is affected, and measurement errors are possibly caused due to temperature, humidity and the like in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a bimetal thermal anemoscope comprises a shell, wherein an outer sleeve is fixedly arranged on the upper end face of the shell, an inner sleeve is sleeved inside the outer sleeve, a first fixture block is fixedly arranged on the inner side of an opening of the outer sleeve, a second fixture block is fixedly arranged on the outer side of the opening of the inner sleeve, a first anemoscope probe is fixedly arranged on the upper end face of the inner sleeve, one end of a heating wire is fixedly arranged on the lower end face of the first anemoscope probe, the other end of the heating wire is fixedly arranged inside the shell, a protective cover is fixedly arranged on the outer portion of the inner sleeve through a bearing, the anemoscope probe is positioned inside the protective cover, the protective cover is of a left-right opening structure, a filter screen is fixedly arranged at the opening of the protective cover, an air inlet fan and an air outlet fan are fixedly arranged on the inner side of, inner skleeve, fixture block one, fixture block two, heating wire, safety cover, filter screen, inlet fan, exhaust fan and outer sleeve one-to-one, the up end fixed mounting of another inner skleeve has anemoscope probe two, the outside fixed mounting of casing has control panel, the draw-in groove has been seted up to the left and right sides on casing upper portion, the inboard movable mounting of draw-in groove has fixture block three, the outside fixed mounting of fixture block three has the protective sheath.

Preferably, the outer diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, and the length of the outer sleeve is the same as that of the inner sleeve.

Preferably, the inner diameter of the first fixture block is the same as the outer diameter of the inner sleeve, and the outer diameter of the second fixture block is the same as the inner diameter of the outer sleeve.

Preferably, the heating wire is of a spring structure, and the outer diameter of the heating wire is smaller than the inner diameter of the inner sleeve.

Preferably, the outer diameter of the protective cover is larger than the diameters of the anemoscope probe I and the anemoscope probe II, and the anemoscope probe I and the anemoscope probe II are located between the air inlet fan and the exhaust fan.

Preferably, the protective sleeve is of a lower end opening structure, and the inner side of the clamping groove is tightly attached to the outer side of the clamping block III.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the bimetal thermal anemoscope, the bimetal probe is installed and made of heat-conducting metals of different materials, so that the phenomenon that the resistance of the metal probe changes due to possible factors and the wind speed cannot be measured correctly is prevented, and the accuracy of measurement is improved;

2. this bimetal heat-sensitive anemoscope installs the safety cover, and the safety cover is left and right sides open structure, makes the heat-sensitive anemoscope have the function of measuring directional velocity of flow, and outside protective sheath can prevent that the long-time oxidation reaction that takes place with the air contact of metal probe, improves bimetal heat-sensitive anemoscope's life.

Drawings

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

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

FIG. 3 is a schematic view of the inner structure of the outer sleeve and the inner sleeve according to the present invention;

FIG. 4 is a schematic view of the internal structure of the protective cover of the present invention;

FIG. 5 is a schematic side view of the present invention;

fig. 6 is a schematic view of the internal structure of the protective cover of the present invention.

In the figure: 1. a housing; 2. an outer sleeve; 3. an inner sleeve; 4. a first clamping block; 5. a second clamping block; 6. an electric heating wire; 7. a first anemometer probe; 8. a second anemometer probe; 9. a protective cover; 10. filtering with a screen; 11. an air intake fan; 12. an exhaust fan; 13. a control panel; 14. a card slot; 15. a fixture block III; 16. and (6) a protective sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a bimetal thermal anemoscope comprises a shell 1, an outer sleeve 2, an inner sleeve 3, a first clamping block 4, a second clamping block 5, an electric heating wire 6, a first anemoscope probe 7, a second anemoscope probe 8, a protective cover 9, a filter screen 10, an air inlet fan 11, an exhaust fan 12, a control panel 13, a clamping groove 14, a third clamping block 15 and a protective cover 16, wherein the upper end face of the shell 1 is fixedly provided with the outer sleeve 2, the inner sleeve 3 is sleeved inside the outer sleeve 2, the first clamping block 4 is fixedly arranged on the inner side of an opening of the outer sleeve 2, the second clamping block 5 is fixedly arranged on the outer side of the opening of the inner sleeve 3, the first anemoscope probe 7 is fixedly arranged on the upper end face of the inner sleeve 3, one end of the electric heating wire 6 is fixedly arranged on the lower end face of the first anemoscope probe 7, the other end of, the anemoscope probe I7 is positioned inside the protective cover 9, the protective cover 9 is of a left-right opening structure, a filter screen 10 is fixedly arranged at an opening of the protective cover 9, an air inlet fan 11 and an exhaust fan 12 are fixedly arranged on the inner side of the protective cover 9 through a support, the other outer sleeve 2, the inner sleeve 3, the first clamping block 4, the second clamping block 5, the electric heating wire 6 and the protective cover 9 are fixedly arranged on the upper end surface of the shell 1, the filter screen 10, the air inlet fan 11 and the exhaust fan 12 correspond to the outer sleeve 2 one by one, the anemoscope probe II 8 is fixedly mounted on the upper end face of the other inner sleeve 3, the control panel 13 is fixedly mounted on the outer side of the shell 1, the clamping grooves 14 are formed in the left side and the right side of the upper portion of the shell 1, the clamping block III 15 is movably mounted on the inner side of the clamping groove 14, the protective sleeve 16 is fixedly mounted on the outer side of the clamping block III 15, and the electric heating wire 6, the anemoscope probe I7, the anemoscope probe II 8 and the control.

Further, the outer diameter of the inner sleeve 3 is smaller than the inner diameter of the outer sleeve 2, the length of the outer sleeve 2 is the same as that of the inner sleeve 3, and the inner sleeve 3 can be drawn down through the outer sleeve 2.

Furthermore, the inner diameter of the first clamping block 4 is the same as the outer diameter of the inner sleeve 3, the outer diameter of the second clamping block 5 is the same as the inner diameter of the outer sleeve 2, and the first clamping block 4 and the second clamping block 5 can prevent the inner sleeve 3 from falling off.

Further, the heating wire 6 is of a spring structure, the outer diameter of the heating wire 6 is smaller than the inner diameter of the inner sleeve 3, the heating wire 6 can heat the anemoscope probe I7 and the anemoscope probe II 8, and the heating wire 6 has elasticity.

Furthermore, the outer diameter of the protective cover 9 is larger than the diameters of the anemoscope probe I7 and the anemoscope probe II 8, the anemoscope probe I7 and the anemoscope probe II 8 are located between the air inlet fan 11 and the air exhaust fan 12, the protective cover 9 can enable directional air to blow into the interior, the air inlet fan 11 can enable the wind direction to be kept horizontal, and the air exhaust fan 12 can exhaust the air in the interior.

Furthermore, the protective sleeve 16 is of a lower end opening structure, the inner side of the clamping groove 14 is tightly attached to the outer side of the clamping block III 15, and the protective sleeve 16 can prevent the anemoscope probe I7 and the anemoscope probe II 8 from being in contact with air for a long time to generate oxidation reaction and play a role in protection.

The working principle is as follows: firstly, when in use, the protective sleeve 16 is opened, the inner sleeve 3 is extended outwards, the control panel 13 is used for controlling the electric heating wire 6 to heat the anemoscope probe I7 and the anemoscope probe II 8, after the heating is finished, the anemoscope probe I7 and the anemoscope probe II 8 are placed in the air flow to be measured, airflow enters the protective cover 9 through the filter screen 10 and contacts with the anemoscope probe I7 and the anemoscope probe II 8, the temperature of the anemoscope probe I7 and the anemoscope probe II 8 changes, the resistance changes, and therefore the voltage at the two ends of the anemoscope probe I7 and the anemoscope probe II 8 changes, can measure the velocity of flow through control panel 13, after finishing using, with inner skleeve 3 shrink inwards, cover protective sheath 16 so that use next time, bimetal probe has avoided the error that factors such as temperature, humidity probably produced, has improved measurement accuracy greatly.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.