CN115902288B - Wind speed induction controller - Google Patents
Wind speed induction controller Download PDFInfo
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- CN115902288B CN115902288B CN202211412086.XA CN202211412086A CN115902288B CN 115902288 B CN115902288 B CN 115902288B CN 202211412086 A CN202211412086 A CN 202211412086A CN 115902288 B CN115902288 B CN 115902288B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a wind speed induction controller, which comprises a ventilation pipeline, wherein an air duct is arranged in the ventilation pipeline, a fan forms wind flow in the air duct, an electromagnetic relay switch is arranged on a power line of the fan, a wind flow speed identification sensor is arranged in the air duct, and a loop is formed by the wind flow speed identification sensor, a direct current power supply and an electromagnet on the electromagnetic relay switch; when the wind speed in the air duct exceeds a threshold value, the wind flow speed identification sensor enables an electromagnet on the electromagnetic relay switch to be electrified; and the linkage of the fan and other air quality optimizing devices is realized.
Description
Technical Field
The invention belongs to the field of wind speed sensors.
Background
In order to enhance the quality of air transmitted in the air duct, the high-end ventilating duct is provided with an air quality optimizing device such as an ultraviolet irradiation sterilizing lamp, an electrostatic dust collection unit, a humidifier, a negative ion generator and the like in a matching manner except for a fan at the source;
the operation of the air quality optimizing devices such as the ultraviolet irradiation sterilizing lamp, the electrostatic dust collection unit, the humidifier, the negative ion generator and the like is meaningful only when wind exists in the ventilating duct, so that the linkage device can be considered to be designed, and the operation and the closing of the air optimizing devices can be controlled by identifying the wind speed in the ventilating duct.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a wind speed induction controller which realizes linkage of a fan and other air quality optimizing devices.
The technical scheme is as follows: in order to achieve the purpose, the wind speed induction controller comprises a ventilation pipeline, wherein an air duct is arranged in the ventilation pipeline, a fan forms wind flow in the air duct, an electromagnetic relay switch is arranged on a power line of the fan, a wind flow speed identification sensor is arranged in the air duct, and a loop is formed by the wind flow speed identification sensor, a direct current power supply and an electromagnet on the electromagnetic relay switch; when the wind speed in the air duct exceeds a threshold value, the wind flow speed identification sensor enables the electromagnet on the electromagnetic relay switch to be electrified, and the electromagnetic relay switch acts after the electromagnet on the electromagnetic relay switch is electrified.
Further, the wind flow speed identifying sensor comprises a fixed wing body in a shuttle shape, the length direction of the fixed wing body is consistent with the wind guiding direction of the air duct, one side of the fixed wing body is a linear wind guiding surface, the other side of the fixed wing body is a streamline wind guiding surface, when the air flow in the air duct flows through the fixed wing body along the wind guiding direction, the air flow which is driven by the streamline wind guiding surface is marked as a curved driving air flow, the air flow which is driven by the straight wind guiding surface is marked as a straight driving air flow, an air pressure comparing unit is arranged in the fixed wing body, and the air pressure comparing unit can compare the air pressure difference between the straight driving air flow and the curved driving air flow.
Further, the fixed wing body is fixedly connected with the inner wall of the ventilating duct through the supporting piece.
Further, the air pressure comparison unit comprises a left air pressure bin and a right air pressure bin which are symmetrically arranged in the fixed wing body; a plurality of a pressure guiding holes are distributed on the streamline air guiding surface in a circumferential array, and a plurality of b pressure guiding holes are distributed on the linear air guiding surface in a circumferential array; all the pressure guiding holes a are communicated with the right wind pressure bin, and all the pressure guiding holes b are communicated with the left wind pressure bin.
Further, the air pressure comparison unit further comprises a structure that an a elastic expansion isolation film is arranged on one side of the left air pressure bin, which is far away from each b pressure guide hole, and an a isolation bin is arranged on one side of the a elastic expansion isolation film, which is far away from the left air pressure bin; b elastic expansion isolation films are arranged on one side of the right wind pressure bin far away from each a pressure guide hole in a separation mode, and b isolation bins are arranged on one side of the b elastic expansion isolation films far away from the right wind pressure bin; an a vertical channel and a b vertical channel are arranged in the fixed wing body, the lower end of the a vertical channel is communicated with the lower end of the b vertical channel through an arc-shaped communication channel, the upper end of the a vertical channel is communicated with an a isolation bin, and the upper end of the b vertical channel is communicated with a b isolation bin;
the liquid level of the conductive liquid in the communicating channel in the vertical channel a and the liquid level in the vertical channel b are respectively a liquid level; when no wind exists in the air duct, the liquid level a is equal to the liquid level b; the device can sense the difference between the liquid level a and the liquid level b.
Further, the device capable of sensing the liquid level a and the liquid level b comprises an a conducting rod and a b conducting rod which respectively extend downwards into the vertical channel a and the vertical channel b, wherein an a contact at the lower end of the a conducting rod is immersed in the liquid level a, and a b contact at the lower end of the b conducting rod is higher than the liquid level b; after the contact a and the contact b are electrically connected, the electromagnet on the electromagnetic relay switch is electrified.
Further, the elastic expansion isolating film a and the elastic expansion isolating film b are made of elastic latex materials.
The beneficial effects are that: the device realizes linkage of the fan and other air quality optimizing devices, has the characteristic of strong load resistance, and is specifically as follows: when wind exists in the air duct, the elastic expansion isolating membrane a expands into an arc-shaped elastic expansion isolating membrane protruding to the left wind pressure bin under the negative pressure adsorption action of the left wind pressure bin; b the elastic expansion isolation film expands into b the elastic expansion isolation film 1 protruding to the right wind pressure bin under the negative pressure adsorption action of the right wind pressure bin 16, and because the negative pressure intensity of the left wind pressure bin is weaker than that of the right wind pressure bin, the expansion degree of the b elastic expansion isolation film is higher than that of the a cambered surface-shaped elastic expansion isolation film; leading the air pressure difference between the vertical channel a and the vertical channel b, and leading the liquid level of the liquid level a to drop and leading the liquid level of the liquid level b to rise under the action of the air pressure difference; the elastic expansion isolating membrane a and the elastic expansion isolating membrane b play a role in isolating from the outside, so that the conductive liquid filled in the communication channel is prevented from volatilizing to the outside under the action of negative pressure, meanwhile, the air pressure difference between the vertical channel a and the vertical channel b is caused by the expansion difference of the elastic expansion isolating membrane a and the elastic expansion isolating membrane b, certain pressure can be offset by the elastic expansion isolating membrane a and the elastic expansion isolating membrane b in the expansion process, and the negative pressure intensity transmitted to the vertical channel a and the vertical channel b is weakened finally, so that the load bearing capacity of the sensor is improved;
when the wind speed in the air duct rises to exceed a critical value, the liquid level of the liquid level b rises to contact the contact b, and the contact a is still immersed below the liquid level a, so that the contact a and the contact b are electrically connected under the action of conductive liquid filled in the communication channel, an electromagnet on the electromagnetic relay switch is electrified, and the action switch of the electromagnetic relay switch acts to further link the air quality optimization devices such as the ultraviolet irradiation sterilizing lamp, the electrostatic dust collection unit, the humidifier, the anion generator and the like to operate.
Drawings
FIG. 1 is a schematic view of a section of ventilation duct;
FIG. 2 is an axial view of FIG. 1;
FIG. 3 is a schematic view of a first view of a wind flow rate identification sensor;
FIG. 4 is a schematic diagram of a second view of the wind flow rate identification sensor;
FIG. 5 is a schematic illustration of fluid analysis of a gas flowing through a wind flow rate identification sensor;
FIG. 6 is a cross-sectional view of a wind flow rate identification sensor;
fig. 7 is a front view and a circuit diagram of fig. 6.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The wind speed induction controller shown in fig. 1 to 7 comprises a ventilation pipeline 27 shown in fig. 1 and 2, wherein an air duct 25 is arranged in the ventilation pipeline 27, a fan forms wind flow in the air duct 25, an electromagnetic relay switch is arranged on a power line of the fan shown in fig. 7, a wind flow speed identification sensor 50 is arranged in the air duct 25, and a loop is formed by the wind flow speed identification sensor 50, a direct current power supply and an electromagnet on the electromagnetic relay switch; when the wind speed in the air duct 25 exceeds a threshold value, the wind flow speed recognition sensor 50 energizes an electromagnet on the electromagnetic relay switch, and after the electromagnet on the electromagnetic relay switch is energized, an action switch of the electromagnetic relay switch acts;
the wind flow speed recognition sensor 50 includes a fixed wing body 13 having a shuttle shape, the length direction of the fixed wing body 13 is consistent with the wind guiding direction of the wind channel 25, and the fixed wing body 13 is fixedly connected to the inner wall of the ventilation duct 27 through the supporting member 26;
as in figures 3, 4, 5; when the airflow in the air duct 25 flows through the fixed wing body 13 along the air guiding direction, the airflow travelling along the streamline air guiding surface 22 is marked as a curved travelling airflow 28, the airflow travelling along the straight air guiding surface 23 is marked as a straight travelling airflow 29, the flow velocity of the curved travelling airflow 28 is larger than that of the straight travelling airflow 29, and according to the Bernoulli equation of fluid mechanics, the pressure of the area with the higher flow velocity is smaller in the same air duct 25, so that the pressure at the streamline air guiding surface 22 is lower than that at the straight air guiding surface 23, and the wind speed in the air duct 25 is higher, and the pressure difference between the streamline air guiding surface 22 and the straight air guiding surface 23 is larger;
an air pressure comparing unit is arranged in the fixed wing body 13, and can compare the air pressure difference between the straight traveling air flow 29 and the curved traveling air flow 28, and the specific structure and principle of the air pressure comparing unit are as follows:
a left wind pressure bin 5 and a right wind pressure bin 16 are symmetrically arranged in the fixed wing body 13; a plurality of a pressure guiding holes 17 are distributed on the streamline air guiding surface 22 in a circumferential array, and a plurality of b pressure guiding holes 4 are distributed on the straight air guiding surface 23 in a circumferential array; each a pressure guide hole 17 is communicated with the right wind pressure bin 16, and each b pressure guide hole 4 is communicated with the left wind pressure bin 5; an a elastic expansion isolation film 6 is arranged on one side of the left wind pressure bin 5 far away from each b pressure guide hole 4 in a separation way, and an a isolation bin 3 is arranged on one side of the a elastic expansion isolation film 6 far away from the left wind pressure bin 5; b elastic expansion isolation films 18 are arranged on one side of the right wind pressure bin 16 far away from the a pressure guide holes 17 in a separation mode, and b isolation bins 19 are arranged on one side of the b elastic expansion isolation films 18 far away from the right wind pressure bin 16; the elastic expansion isolating membrane 6 a and the elastic expansion isolating membrane 18 b are made of elastic latex materials; a vertical channel (8) and a vertical channel (14) are arranged in the fixed wing body (13), the lower end of the vertical channel (8) is communicated with the lower end of the vertical channel (14) through an arc-shaped communication channel (10), the upper end of the vertical channel (8) is communicated with an isolation bin (3), and the upper end of the vertical channel (14) is communicated with an isolation bin (19); the communication channel 10 is filled with conductive liquid, which can be sodium chloride aqueous solution or other conductive liquid, and the liquid levels of the conductive liquid in the communication channel 10 in the a vertical channel 8 and the b vertical channel 14 are respectively a liquid level 11.1 and a liquid level 11.2; the liquid level a 11.1 is level with the liquid level b 11.2; the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18 play a role in isolating from the outside, and the conductive liquid filled in the communication channel 10 is prevented from volatilizing to the outside;
the air pressure comparison unit also comprises a device capable of sensing the liquid level difference between the liquid level a 11.1 and the liquid level b 11.2, and the specific structure is as follows:
the device comprises an a conducting rod 2 and a b conducting rod 20 which respectively extend into an a vertical channel 8 and a b vertical channel 14 vertically downwards, wherein an a contact 9 at the lower end of the a conducting rod 2 is immersed below an a liquid level 11.1, and a b contact 12 at the lower end of the b conducting rod 20 is higher than a b liquid level 11.2; after the a contact 9 and the b contact 12 are electrically connected, the electromagnet on the electromagnetic relay switch is electrified.
Principle of operation (mainly with reference to fig. 7): when no wind exists in the air duct 25, the air pressure at the linear air guide surface 23 is consistent with the air pressure at the streamline air guide surface 22, under the air pressure transmission of the air pressure of the a pressure guide hole 17 and the air pressure transmission of the b pressure guide hole 4, the air pressures in the left air pressure bin 5 and the right air pressure bin 16 are normal pressure, and the pressures at the two sides of the a elastic expansion isolating membrane 6 and the b elastic expansion isolating membrane 18 are in a balanced state, so that the elastic expansion isolating membrane 6 of the a and the elastic expansion isolating membrane 18 of the b are in a vertical plane state; the air pressure of the upper parts of the a vertical channel 8 and the b vertical channel 14 is consistent, so that the a liquid level 11.1 and the b liquid level 11.2 are leveled;
when wind exists in the air duct 25, when the air flow in the air duct 25 flows through the fixed wing body 13 along the wind guiding direction, the air flow which is carried out by the streamline wind guiding surface 22 is marked as a curved air flow 28, the air flow which is carried out by the streamline wind guiding surface 23 is marked as a straight air flow 29, the flow speed of the curved air flow 28 is larger than that of the straight air flow 29, according to the Bernoulli equation of fluid mechanics, the pressure of the area with the faster flow speed is smaller in the same air duct 25, therefore, when the air duct 25 has the wind, the air pressure at the streamline wind guiding surface 22 and the air pressure at the straight wind guiding surface 23 are smaller than the air pressure at the streamline wind guiding surface 22 and the air pressure at the straight wind guiding surface 23 are lower than the air pressure at the straight wind guiding surface 23, and the air speed in the air duct 25 is higher, the pressure difference between the streamline wind guiding surface 22 and the straight wind guiding surface 23 is larger; the air pressure at the linear air guide surface 23 and the air pressure at the streamline air guide surface 22 are respectively transmitted into the left air pressure bin 5 and the right air pressure bin 16 in the a air guide hole 17 and the b air guide hole 4, so that negative pressure environments are formed in the left air pressure bin 5 and the right air pressure bin 16, and the a elastic expansion isolation film 6 expands into an a cambered surface-shaped elastic expansion isolation film 6.1 protruding to the left air pressure bin 5 under the negative pressure adsorption effect of the left air pressure bin 5; b the elastic expansion isolation film 18 expands into b elastic expansion isolation film 18.1 protruding to the right wind pressure bin 16 under the negative pressure adsorption action of the right wind pressure bin 16, and because the negative pressure intensity of the left wind pressure bin 5 is weaker than that of the right wind pressure bin 16, the expansion degree of b elastic expansion isolation film 18.1 is higher than that of a cambered surface-shaped elastic expansion isolation film 6.1, and then the air pressure difference is generated between the a vertical channel 8 and the b vertical channel 14, the liquid level of a liquid level 11.1 is lowered under the action of the air pressure difference, and the liquid level of b liquid level 11.2 is raised; the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18 play a role in isolating from the outside, so that the conductive liquid filled in the communication channel 10 is prevented from volatilizing to the outside under the action of negative pressure, meanwhile, the air pressure difference between the a vertical channel 8 and the b vertical channel 14 is caused by the expansion difference of the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18, and certain pressure is counteracted by the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18 in the expansion process, and the negative pressure intensity finally transferred to the a vertical channel 8 and the b vertical channel 14 is weakened, so that the load bearing capacity of the sensor is improved; if the a elastic expansion isolating membrane 6 and the b elastic expansion isolating membrane 18 are not arranged, the negative pressure intensity and the pressure difference finally transmitted to the a vertical channel 8 and the b vertical channel 14 are very large, so that the problem of high sensitivity is caused;
when the wind speed in the wind channel 25 is very low and does not exceed a critical value, other air quality optimizing devices are not required to be started, and the liquid level of the b liquid level 11.2 is not high enough to contact the b contact 12, so that the a contact 9 and the b contact 12 are still in an open state; other air quality optimization devices are not running;
when the wind speed in the air duct 25 rises to exceed a critical value, the liquid level of the b liquid level 11.2 rises to contact the b contact 12, and the a contact 9 is still immersed below the a liquid level 11.1, so that the a contact 9 and the b contact 12 are electrically connected under the action of conductive liquid filled in the communication channel 10, an electromagnet on the electromagnetic relay switch is electrified, the action switch of the electromagnetic relay switch acts, and then the air quality optimization devices such as an ultraviolet irradiation sterilizing lamp, an electrostatic dust collection unit, a humidifier, a negative ion generator and the like are linked to operate under the action of the electromagnetic relay switch.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (4)
1. Wind speed induction controller, its characterized in that: the wind-driven generator comprises a ventilation pipeline (27), wherein an air duct (25) is arranged in the ventilation pipeline (27), a fan enables wind flow to be formed in the air duct (25), an electromagnetic relay switch is arranged on a power line of the fan, a wind flow speed identification sensor (50) is arranged in the air duct (25), and a loop is formed by the wind flow speed identification sensor (50), a direct current power supply and an electromagnet on the electromagnetic relay switch; when the wind speed in the air duct (25) exceeds a threshold value, the wind flow speed identification sensor (50) enables an electromagnet on the electromagnetic relay switch to be electrified, and the electromagnetic relay switch acts after the electromagnet on the electromagnetic relay switch is electrified;
the wind flow speed identification sensor (50) comprises a fixed wing body (13) in a shuttle shape, the length direction of the fixed wing body (13) is consistent with the wind guiding direction of the wind channel (25), one side of the fixed wing body (13) is a linear wind guiding surface (23), the other side of the fixed wing body is a streamline wind guiding surface (22), when the airflow in the wind channel (25) flows through the fixed wing body (13) along the wind guiding direction, the airflow which is carried out by the streamline wind guiding surface (22) is marked as a curved travelling airflow (28), the airflow which is carried out by the straight wind guiding surface (23) is marked as a linear travelling airflow (29), and an air pressure comparison unit is arranged in the fixed wing body (13) and can compare the air pressure difference of the linear travelling airflow (29) and the curved travelling airflow (28);
the air pressure comparison unit comprises a left air pressure bin (5) and a right air pressure bin (16) which are symmetrically arranged in the fixed wing body (13) left and right; a plurality of a pressure guiding holes (17) are distributed on the streamline air guiding surface (22) in a circumferential array, and a plurality of b pressure guiding holes (4) are distributed on the straight air guiding surface (23) in a circumferential array; each pressure guide hole (17) is communicated with the right wind pressure bin (16), and each pressure guide hole (4) is communicated with the left wind pressure bin (5);
the air pressure comparison unit further comprises a structure that an a elastic expansion isolation film (6) is arranged on one side, far away from each b pressure guide hole (4), of the left air pressure bin (5) in a separation mode, and an a isolation bin (3) is arranged on one side, far away from the left air pressure bin (5), of the a elastic expansion isolation film (6); b elastic expansion isolation films (18) are arranged on one side of the right wind pressure bin (16) far from each a pressure guide hole (17) in a separation mode, and b isolation bins (19) are arranged on one side of the b elastic expansion isolation films (18) far from the right wind pressure bin (16); an a vertical channel (8) and a b vertical channel (14) are arranged in the fixed wing body (13), the lower end of the a vertical channel (8) is communicated with the lower end of the b vertical channel (14) through an arc-shaped communication channel (10), the upper end of the a vertical channel (8) is communicated with the a isolation bin (3), and the upper end of the b vertical channel (14) is communicated with the b isolation bin (19);
conductive liquid is filled in the communication channel (10), and the liquid levels of the conductive liquid in the communication channel (10) in the a vertical channel (8) and the b vertical channel (14) are respectively a liquid level (11.1) and a b liquid level (11.2); when no wind exists in the air duct (25), the liquid level a (11.1) is level with the liquid level b (11.2); also comprises a device which can sense the liquid level difference between the liquid level a (11.1) and the liquid level b (11.2).
2. The wind speed sensing controller of claim 1, wherein: the fixed wing body (13) is fixedly connected with the inner wall of the ventilating duct (27) through a supporting piece (26).
3. The wind speed sensing controller of claim 2, wherein: the device capable of sensing the liquid level difference between the liquid level a (11.1) and the liquid level b (11.2) comprises an a conducting rod (2) and a b conducting rod (20) which respectively vertically extend into an a vertical channel (8) and a b vertical channel (14), wherein an a contact point (9) at the lower end of the a conducting rod (2) is immersed below the liquid level a (11.1), and a b contact point (12) at the lower end of the b conducting rod (20) is higher than the liquid level b (11.2); after the a contact (9) and the b contact (12) are electrically connected, an electromagnet on the electromagnetic relay switch is electrified.
4. A wind speed sensing controller according to claim 3, wherein: the elastic expansion isolating film (6) and the elastic expansion isolating film (18) are made of elastic latex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211412086.XA CN115902288B (en) | 2022-11-11 | 2022-11-11 | Wind speed induction controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211412086.XA CN115902288B (en) | 2022-11-11 | 2022-11-11 | Wind speed induction controller |
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| CN115902288A CN115902288A (en) | 2023-04-04 |
| CN115902288B true CN115902288B (en) | 2023-09-05 |
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