CN115902288A - Wind speed induction controller - Google Patents
Wind speed induction controller Download PDFInfo
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- CN115902288A CN115902288A CN202211412086.XA CN202211412086A CN115902288A CN 115902288 A CN115902288 A CN 115902288A CN 202211412086 A CN202211412086 A CN 202211412086A CN 115902288 A CN115902288 A CN 115902288A
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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 channel is arranged in the ventilation pipeline, a fan enables wind flow to be formed in the air channel, an electromagnetic relay switch is arranged on a power line of the fan, a wind flow over-speed identification sensor is arranged in the air channel, and a loop is formed by the wind flow over-speed identification sensor, a direct-current power supply and an electromagnet on the electromagnetic relay switch; when the wind speed in the wind channel exceeds a threshold value, the wind flows through the speed identification sensor to electrify the electromagnet on the electromagnetic relay switch; 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, an ultraviolet radiation germicidal lamp, an electrostatic dust collection unit, a humidifier, an anion generator and other air quality optimization devices need to be arranged in the air duct in a matched manner in the operation of the high-end air duct except for the fan at the source;
the operation of the air quality optimization device such as the ultraviolet radiation sterilizing lamp, the electrostatic dust collection unit, the humidifier, the negative ion generator and the like is meaningful under the condition that wind exists in the ventilation pipeline, so that a linkage device can be designed in consideration, and the operation and the closing of the air quality optimization device are controlled by identifying the wind speed in the ventilation pipeline.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a wind speed sensing 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 channel is arranged in the ventilation pipeline, the fan enables wind flow to be formed in the air channel, an electromagnetic relay switch is arranged on a power line of the fan, a wind flow over-speed identification sensor is arranged in the air channel, and the wind flow over-speed identification sensor, a direct-current power supply and an electromagnet on the electromagnetic relay switch form a loop; when the wind speed in the wind channel exceeds a threshold value, the wind flows through the speed identification sensor to electrify the electromagnet on the electromagnetic relay switch, and the electromagnetic relay switch acts after the electromagnet on the electromagnetic relay switch is electrified.
Furthermore, the air flow over-speed identification sensor comprises a shuttle-shaped fixed wing body, the length direction of the fixed wing body is consistent with the air guide direction of the air duct, one side of the fixed wing body is a linear air guide surface, the other side of the fixed wing body is a streamline air guide surface, when the air flow in the air duct flows through the fixed wing body along the air guide direction, the air flow moving along the streamline air guide surface is marked as curved traveling air flow, the air flow moving along the linear air guide surface is marked as linear traveling air flow, and an air pressure comparison unit is arranged in the fixed wing body and can compare the air pressure difference between the linear traveling air flow and the curved traveling air flow.
Furthermore, the fixed wing body is fixedly connected with the inner wall of the ventilation pipeline through a support piece.
Further, the air pressure comparison unit comprises a left air pressure cabin and a right air pressure cabin which are arranged in the fixed wing body in a bilateral symmetry manner; a plurality of pressure guide holes a are distributed on the streamline air guide surface in a circumferential array manner, and a plurality of pressure guide holes b are distributed on the linear air guide surface in a circumferential array manner; and each pressure guide hole a is communicated with the right wind pressure cabin, and each pressure guide hole b is communicated with the left wind pressure cabin.
Furthermore, the air pressure comparison unit also comprises a structure that one side of the left air pressure cabin, which is far away from each pressure guide hole b, is provided with an elastic expansion isolating membrane a in a separated mode, and one side of the elastic expansion isolating membrane a, which is far away from the left air pressure cabin, is an a isolating cabin; one side of the right wind pressure cabin, which is far away from each pressure guide hole a, is provided with an elastic expansion isolating film b in a separating way, and one side of the elastic expansion isolating film b, which is far away from the right wind pressure cabin, is an isolation cabin b; the fixed wing body is internally provided with a vertical channel a and a vertical channel b, the lower end of the vertical channel a is communicated with the lower end of the vertical channel b through an arc-shaped communicating channel, the upper end of the vertical channel a is communicated with the isolation bin a, and the upper end of the vertical channel b is communicated with the isolation bin b;
the communication channel is filled with conductive liquid, and the liquid levels of the conductive liquid in the communication channel in the vertical channel a and the vertical channel b are respectively a liquid level a and a liquid level b; when no wind exists in the air duct, the liquid level a is equal to the liquid level b; the device also comprises a device capable of sensing the difference between the liquid level a and the liquid level b.
The device capable of sensing the liquid level a, the liquid level b and the liquid level difference comprises a conductive rod a and a conductive rod b which vertically extend into the vertical channel a and the vertical channel b, respectively, wherein a contact at the lower end of the conductive rod a is immersed below the liquid level a, and a contact b at the lower end of the conductive rod b is higher than the liquid level b; and after the contact a is electrically connected with the contact b, the electromagnet on the electromagnetic relay switch is electrified.
Furthermore, the elastic expansion isolating membrane a and the elastic expansion isolating membrane b are both made of elastic latex materials.
Has the advantages that: this device realizes that fan and other air quality optimizing device link, has the characteristics that anti load capacity is strong, specifically does: when wind exists in the air duct, the a elastic expansion isolating membrane expands into an a-arc-surface elastic expansion isolating membrane protruding to the left wind pressure cabin under the negative pressure adsorption action of the left wind pressure cabin; b, the elastic expansion isolation film expands into a b elastic expansion isolation film 1 protruding to the right wind pressure cabin under the negative pressure adsorption action of the right wind pressure cabin 16, and the expansion degree of the b elastic expansion isolation film is higher than that of the a cambered surface elastic expansion isolation film because the negative pressure intensity of the left wind pressure cabin is weaker than that of the right wind pressure cabin; the vertical channel a and the vertical channel b generate air pressure difference, the liquid level of the liquid level a drops and the liquid level of the liquid level b rises 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 the outside, so that conductive liquid filled in the communicating 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 on the basis of the expansion difference of the elastic expansion isolating membrane a and the elastic expansion isolating membrane b, certain pressure can be counteracted by the elastic expansion isolating membrane a and the elastic expansion isolating membrane b in the expansion process, and finally the negative pressure strength transmitted to the vertical channel a and the vertical channel b is weakened, 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 be in contact with the contact point b, and the contact point a is still immersed below the liquid level a, so that the contact point a and the contact point b are electrically connected under the action of the conductive liquid filled in the communicating channel, the electromagnet on the electromagnetic relay switch is electrified, the action switch of the electromagnetic relay switch acts, and the air quality optimizing device such as the ultraviolet radiation sterilizing lamp, the electrostatic dust collection unit, the humidifier, the negative ion generator and the like is further linked to operate.
Drawings
FIG. 1 is a schematic view of a section of a ventilation duct;
FIG. 2 is an axial view of FIG. 1;
FIG. 3 is a schematic view of a first perspective of a wind over speed identification sensor;
FIG. 4 is a schematic view of a second perspective of a wind over speed sensor;
FIG. 5 is a schematic view of fluid analysis of a gas flowing through a wind over speed identification sensor;
FIG. 6 is a cross-sectional view of a wind flow over speed identification sensor;
fig. 7 is a front view and circuit diagram of fig. 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The wind speed induction controller shown in fig. 1 to 7 includes a ventilation duct 27 as shown in fig. 1 and 2, an air duct 25 is arranged in the ventilation duct 27, and a fan causes an air flow to be formed in the air duct 25, as shown in fig. 7, an electromagnetic relay switch is arranged on a power line of the fan, an air flow over-speed identification sensor 50 is arranged in the air duct 25, and the air flow over-speed identification sensor 50, a direct-current power supply and an electromagnet on the electromagnetic relay switch form a loop; when the wind speed in the wind channel 25 exceeds the threshold value, the wind flowing through the over-speed identification sensor 50 enables the electromagnet on the electromagnetic relay switch to be electrified, and after the electromagnet on the electromagnetic relay switch is electrified, the action switch of the electromagnetic relay switch acts;
the wind flow over-speed recognition sensor 50 comprises a shuttle-shaped fixed wing body 13, the length direction of the fixed wing body 13 is consistent with the wind guide direction of the air duct 25, and the fixed wing body 13 is fixedly connected with the inner wall of the ventilation duct 27 through a support piece 26;
as shown in fig. 3, 4 and 5; one side of the fixed wing body 13 is a linear air guide surface 23, the other side is a streamline air guide surface 22, when the air flow in the air duct 25 flows through the fixed wing body 13 along the air guide direction, the air flow running along the streamline air guide surface 22 is marked as a curve running air flow 28, the air flow running along the linear air guide surface 23 is marked as a linear running air flow 29, the flow velocity of the curve running air flow 28 is greater than that of the linear running air flow 29, and according to the hydrodynamics bernoulli equation, the pressure intensity of an area with the faster flow velocity is smaller in the same air duct 25, so that the air pressure at the streamline air guide surface 22 is lower than that at the linear air guide surface 23, and the higher the air speed in the air duct 25 is, the larger the pressure difference between the streamline air guide surface 22 and the linear air guide surface 23 is;
the fixed wing body 13 is provided with an air pressure comparison unit, which 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 comparison unit are as follows:
a left wind pressure cabin 5 and a right wind pressure cabin 16 are symmetrically arranged in the fixed wing body 13 from left to right; a plurality of a pressure guide holes 17 are distributed on the streamline air guide surface 22 in a circumferential array, and a plurality of b pressure guide holes 4 are distributed on the linear air guide surface 23 in a circumferential array; each pressure guide hole a 17 is communicated with the right wind pressure cabin 16, and each pressure guide hole b 4 is communicated with the left wind pressure cabin 5; an a elastic expansion isolating membrane 6 is arranged on one side of the left wind pressure cabin 5 far away from each b pressure guide hole 4 in a separated mode, and an a isolating cabin 3 is arranged on one side of the a elastic expansion isolating membrane 6 far away from the left wind pressure cabin 5; a b elastic expansion isolating film 18 is arranged on one side of the right wind pressure cabin 16 far away from the a pressure guide holes 17 in a separated mode, and a b isolating cabin 19 is arranged on one side of the b elastic expansion isolating film 18 far away from the right wind pressure cabin 16; the elastic expansion isolating membrane 6 a and the elastic expansion isolating membrane 18 b are both made of elastic latex materials; 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 communicating 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; 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 11.1 of the liquid level a is equal to the liquid level 11.2 of the liquid level b; the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18 play a role in isolating the outside, and 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 difference between the liquid levels 11.1 and 11.2, and the air pressure comparison unit has the following specific structure:
the device comprises an a conductive rod 2 and a b conductive rod 20 which vertically extend into an a vertical channel 8 and a b vertical channel 14, respectively, wherein an a contact 9 at the lower end of the a conductive rod 2 is immersed below an a liquid level 11.1, and a b contact 12 at the lower end of the b conductive rod 20 is higher than a b liquid level 11.2; after the contact point a 9 and the contact point b 12 are electrically connected, the electromagnet on the electromagnetic relay switch is electrified.
Principle of operation (see mainly 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 transmission of the air pressure of the pressure guide hole a 17 and the pressure guide hole b 4, the air pressure in the left air pressure cabin 5 and the air pressure in the right air pressure cabin 16 are both normal pressure, and the pressure at two sides of the elastic expansion isolating membrane a 6 and the elastic expansion isolating membrane b 18 are both in a balanced state, so that the elastic expansion isolating membrane a 6 and the elastic expansion isolating membrane b 18 are both in a vertical plane state; the air pressures of the upper parts of the vertical channel 8 a and the vertical channel 14 b are consistent, so that the liquid level 11.1 of the channel a is equal to the liquid level 11.2 of the channel b;
when wind is in the air duct 25, when the air flow in the air duct 25 flows through the fixed wing body 13 along the air guiding direction, the air flow traveling along the streamlined air guiding surface 22 is recorded as a curved traveling air flow 28, the air flow traveling along the linear air guiding surface 23 is recorded as a linear traveling air flow 29, the flow rate of the curved traveling air flow 28 is greater than that of the linear traveling air flow 29, and according to the hydrodynamics bernoulli equation, the pressure in the area with the faster flow rate in the same air duct 25 is smaller, so that when wind exists in the air duct 25, the air pressure at the streamlined air guiding surface 22 and the air pressure at the linear air guiding surface 23 are smaller than that in the case of no wind speed, the air pressure at the streamlined air guiding surface 22 is lower than that at the linear air guiding surface 23, and the higher the wind speed in the air duct 25 is, the pressure difference between the streamlined air guiding surface 22 and the linear air 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 at the pressure guide hole a 17 and the pressure guide hole b 4, so that negative pressure environments are formed in the left air pressure bin 5 and the right air pressure bin 16, and the elastic expansion isolating membrane a 6 is expanded into an elastic expansion isolating membrane a 6.1 which is protruded to the shape of an arc surface of the left air pressure bin 5 under the negative pressure adsorption action of the left air pressure bin 5; b, the elastic expansion isolating membrane 18 expands into a b elastic expansion isolating membrane 18.1 protruding to the right wind pressure cabin 16 under the negative pressure adsorption action of the right wind pressure cabin 16, and because the negative pressure intensity of the left wind pressure cabin 5 is weaker than the negative pressure intensity of the right wind pressure cabin 16, the expansion degree of the b elastic expansion isolating membrane 18.1 is higher than that of the a cambered surface-shaped elastic expansion isolating membrane 6.1, so that the a vertical channel 8 and the b vertical channel 14 generate air pressure difference, the liquid level of the a liquid level 11.1 is lowered under the action of the air pressure difference, and the liquid level of the b liquid level 11.2 is raised; the elastic expansion isolating membrane 6 and the elastic expansion isolating membrane 18 a play a role in isolating 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 vertical channel 8 a and the vertical channel 14 b is caused by the expansion difference between the elastic expansion isolating membrane 6 a and the elastic expansion isolating membrane 18 b, certain pressure can be counteracted by the elastic expansion isolating membrane 6 a and the elastic expansion isolating membrane 18 b in the expansion process, and the negative pressure strength transmitted to the vertical channel 8 a and the vertical channel 14 b is weakened finally, so that the load bearing capacity of the sensor is improved; if the a elastic expansion isolation diaphragm 6 and the b elastic expansion isolation diaphragm 18 are not arranged, the negative pressure intensity and the pressure difference which are finally transmitted to the a vertical channel 8 and the b vertical channel 14 are very large, and the problem of overhigh sensitivity is caused;
when the wind speed in the wind channel 25 is very low and does not exceed the critical value, other air quality optimizing devices do not need to be started, the rising height of the liquid level 11.2 of the b contact is not enough to contact the b contact 12, and therefore the a contact 9 and the b contact 12 are still in a disconnected state; other air quality optimization devices are not in operation;
when the wind speed in the wind channel 25 rises to exceed a critical value, the liquid level of the b liquid level 11.2 rises to contact the b contact 12, 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 the 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 further the air quality optimization device such as the ultraviolet radiation sterilizing lamp, the electrostatic dust collection unit, the humidifier, the anion generator and the like operates under the action of the electromagnetic relay switch.
The above is only a preferred embodiment of the present invention, and it should be 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 invention and these are intended to be within the scope of the invention.
Claims (7)
1. Wind speed induction control ware, its characterized in that: the air-conditioning system comprises a ventilation pipeline (27), wherein an air channel (25) is arranged in the ventilation pipeline (27), the fan enables air flow to be formed in the air channel (25), an electromagnetic relay switch is arranged on a power line of the fan, an air flow over-speed identification sensor (50) is arranged in the air channel (25), and the air flow over-speed identification sensor (50), a direct-current power supply and an electromagnet on the electromagnetic relay switch form a loop; when the wind speed in the wind channel (25) exceeds a threshold value, the wind flows through the speed identification sensor (50) to enable the electromagnet on the electromagnetic relay switch to be electrified, and after the electromagnet on the electromagnetic relay switch is electrified, the electromagnetic relay switch acts.
2. The wind speed sensing controller of claim 1, wherein: the wind flow over-speed identification sensor (50) comprises a shuttle-shaped fixed wing body (13), the length direction of the fixed wing body (13) is consistent with the wind guide direction of an air duct (25), one side of the fixed wing body (13) is a linear wind guide surface (23), the other side of the fixed wing body is a streamline wind guide surface (22), when airflow in the air duct (25) flows through the fixed wing body (13) along the wind guide direction, airflow traveling along the streamline wind guide surface (22) is marked as curved traveling airflow (28), airflow traveling along the linear wind guide surface (23) is marked as linear traveling airflow (29), and an air pressure comparison unit is arranged in the fixed wing body (13) and can compare the air pressure difference between the linear traveling airflow (29) and the curved traveling airflow (28).
3. The wind speed sensing controller of claim 2, wherein: the fixed wing body (13) is fixedly connected with the inner wall of the ventilation pipeline (27) through a support piece (26).
4. The wind speed sensing controller of claim 2, wherein: the air pressure comparison unit comprises a left air pressure bin (5) and a right air pressure bin (16) which are arranged in the fixed wing body (13) in a left-right symmetrical mode; a plurality of a pressure guide holes (17) are circumferentially distributed on the streamline air guide surface (22), and a plurality of b pressure guide holes (4) are circumferentially distributed on the linear air guide surface (23); and each pressure guide hole a (17) is communicated with the right wind pressure cabin (16), and each pressure guide hole b (4) is communicated with the left wind pressure cabin (5).
5. The wind speed sensing controller of claim 4, wherein: the air pressure comparison unit also comprises a structure that an a elastic expansion isolation film (6) is arranged on one side of the left air pressure cabin (5) far away from each b pressure guide hole (4) in a separated mode, and an a isolation cabin (3) is arranged on one side of the a elastic expansion isolation film (6) far away from the left air pressure cabin (5); a b elastic expansion isolating film (18) is arranged on one side of the right wind pressure cabin (16) far away from the a pressure guide holes (17) in a separated mode, and a b isolating cabin (19) is arranged on one side of the b elastic expansion isolating film (18) far away from the right wind pressure cabin (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 communicating 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 vertical channel a (8) and the vertical channel b (14) are respectively a liquid level a (11.1) and a liquid level b (11.2); when no wind exists in the air channel (25), the liquid level (11.1) of the liquid a is level to the liquid level (11.2) of the liquid b; the device also comprises a device which can sense the difference between the liquid level (11.1) of the liquid level a and the liquid level (11.2) of the liquid level b.
6. The wind speed sensing controller of claim 4, wherein: the device capable of sensing the liquid level difference between the liquid level (11.1) a and the liquid level (11.2) b comprises a conducting rod (2) a and a conducting rod (20) b, wherein the conducting rod a and the conducting rod b vertically extend into a vertical channel (8) a and a vertical channel (14) b respectively, a contact (9) at the lower end of the conducting rod a (2) is immersed below the liquid level (11.1) a, and a contact (12) at the lower end of the conducting rod b (20) is higher than the liquid level (11.2) b; and after the contact a (9) is electrically connected with the contact b (12), the electromagnet on the electromagnetic relay switch is electrified.
7. The wind speed sensing controller of claim 4, wherein: the elastic expansion isolating membrane (6) a and the elastic expansion isolating membrane (18) b are both made of elastic latex materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211412086.XA CN115902288B (en) | 2022-11-11 | 2022-11-11 | Wind speed induction controller |
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| CN202211412086.XA CN115902288B (en) | 2022-11-11 | 2022-11-11 | Wind speed induction controller |
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| CN115902288A true CN115902288A (en) | 2023-04-04 |
| CN115902288B CN115902288B (en) | 2023-09-05 |
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| CN115902288B (en) | 2023-09-05 |
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