CN212081547U - Fresh air energy-saving humidifying system for building - Google Patents
Fresh air energy-saving humidifying system for building Download PDFInfo
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- CN212081547U CN212081547U CN202020914934.7U CN202020914934U CN212081547U CN 212081547 U CN212081547 U CN 212081547U CN 202020914934 U CN202020914934 U CN 202020914934U CN 212081547 U CN212081547 U CN 212081547U
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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 utility model relates to a new trend technical field particularly, relates to building new trend energy-conserving humidification system, for the technical problem that solve the unable accurate regulation of new trend humidification system wind speed, wind speed and air humidity match improperly, the electric energy is extravagant, discloses building new trend energy-conserving humidification system. The system comprises a variable frequency motor, a variable frequency driver, a humidity sensor and a control circuit board, wherein the humidity sensor is used for detecting air humidity and is installed at an air outlet of a fresh air energy-saving humidifying system, the control circuit board is provided with a single chip microcomputer, the single chip microcomputer is used for receiving air humidity information of the humidity sensor and controlling the motion state of the variable frequency motor through the variable frequency driver, an encoder is installed on the variable frequency motor and is used for acquiring the rotation speed information of the variable frequency motor and feeding the rotation speed information back to the single chip microcomputer, and the control circuit board is provided with a photoelectric isolator and is used.
Description
Technical Field
The utility model relates to a new trend technical field particularly, relates to building new trend energy-conserving humidification system.
Background
In autumn and winter, indoor air is dry, and the humidity requirement for comfort of the indoor air can be met by humidification. In a fresh air system, a wet film humidifying method is often adopted at present.
FIG. 1 is a schematic diagram of a prior art humidification system in which clean tap water is fed through a water inlet line to a tank of wet film circulating water, the water entering the tank being controlled by a float valve or a level switch. The water distributor of wet membrane circulating water is sent to wet membrane top water distributor with the water in the basin, through wet membrane water distributor with water evenly distributed, water flows down along wet membrane surface under the action of gravity, wets wet membrane surface, and the unevaporated rivers that flow down from the wet membrane go into circulation tank, are sent to the wet membrane top by circulating water pump again, and this process circulation is reciprocal. The dry air passes through the wet film material, and the water molecules absorb heat and are vaporized and evaporated to become wet air for humidification.
There are various factors affecting the moisture content, wherein the air flow rate has a large influence on the moisture content, and theoretically, the humidification amount increases with the increase of the fan speed, and the inventor finds through practical research that when the humidification amount reaches a certain value, and then the fan speed is increased, the humidification amount shows a descending trend.
On one hand, the air speed is increased, the heat and mass exchange coefficient is increased, and the humidifying effect is improved, but the contact time between air and a wet film is shortened due to too high air speed, so that the humidifying effect is weakened;
on the other hand, in the humidification process, the temperature difference between the air and the saturated air layer on the water surface and the partial pressure difference of the water vapor are driving forces, when the relative humidity of the air is increased to a certain value, the partial pressure difference of the water vapor is reduced, the water vapor entering the air is reduced, and therefore the humidification effect is reduced. The method has the advantages that the frontal wind speed is increased, the humidifying effect is improved, but the contact time between air and a wet film is shortened due to too high wind speed, the humidifying effect is reduced, the air resistance is also increased rapidly, and therefore the proper wind speed is required and is not too high.
In the prior art, the wind speed cannot be accurately adjusted, a detection feedback mechanism is lacked, the open-loop control is realized, the system controls the fan to blow, the humidification effect or efficiency is not really considered, the larger the wind speed is, the better the humidification effect is, and due to the defects of the existing design, the expected humidification effect is not achieved, and the waste of electric energy is also caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an energy-conserving humidification system of building new trend, in order to realize above-mentioned purpose, the utility model discloses a following technical scheme:
the fresh air energy-saving humidifying system for the building comprises a variable frequency motor, a variable frequency driver, a humidity sensor and a control circuit board, wherein the humidity sensor is arranged at an air outlet part of the fresh air energy-saving humidifying system and used for detecting air humidity, and the humidity sensor is electrically connected with the control circuit board; the encoder is installed on inverter motor for gather inverter motor rotational speed information, the encoder is connected with the control circuit board electricity.
As a further improvement, the control circuit board is provided with a single chip microcomputer, and the single chip microcomputer is used for receiving humidity transducer's air humidity information to through variable frequency drive ware control inverter motor.
As a further improvement of the utility model, the single chip microcomputer model is STM32F 103.
As a further improvement of the utility model, the control circuit board further includes a photoelectric isolator for the isolation protection singlechip, the one end and the encoder electricity of photoelectric isolator are connected, the other end with the singlechip electricity is connected.
As a further improvement of the present invention, the photovoltaic isolator is of the type EL 817C.
As a further improvement of the present invention, the humidity sensor is a lithium chloride resistive sensor.
After the technical scheme is adopted, the utility model provides an energy-conserving humidification system of building new trend has beneficial effect is:
the problem that the wind speed can not be accurately adjusted is effectively solved, the rotating speed of the variable frequency motor can be adjusted according to the air humidity, the rotating speed of the variable frequency motor is detected, the rotating speed is automatically matched with the air humidity, the air humidity is maximized at a certain wind speed, the problem that the wind speed is too large and the air humidity is small on the contrary is solved, the system efficiency is maximized, and the electric energy is saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
FIG. 1 is a schematic diagram of a prior art humidification system;
fig. 2 is a block diagram of the automatic detection control device of the present invention;
FIG. 3 is a schematic view of a fresh air humidifying device according to the present invention;
fig. 4 is a schematic diagram of the principle of the optoelectronic isolator according to the present invention.
In the figure: a control circuit board 100; a single chip microcomputer 101; a photo isolator 102; a humidity sensor 201; an encoder 202; a variable frequency motor 203; a variable frequency drive 204.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the fresh air humidification system, the air speed is increased, the heat and mass exchange coefficient is increased, the humidification effect can be improved, but the air speed is too high, so that the contact time between air and a wet film is shortened, and the humidification effect is weakened.
In order to optimize the relation between wind speed and the humidity, make the whole humidification efficiency of system the highest, reduce invalid energy consumption, the utility model discloses a building new trend energy-conserving humidification system, this humidification system include automatic checkout controlling means, can solve prior art defect.
Referring to fig. 2-3, the fresh air energy-saving humidifying system for the building comprises a control circuit board 100, a single chip microcomputer 101, a photoelectric isolator 102, a humidity sensor 201, an encoder 202, a variable frequency motor 203 and a variable frequency driver 204.
The variable frequency motor 203 is adopted in the embodiment, and the novel air conditioner is different from other fresh air systems, and has the beneficial effect of energy conservation.
The humidity sensor 201 is used for detecting air humidity, is installed at an air outlet of the fresh air energy-saving humidifying system, is installed at the air outlet of the humidifying system, is an optimal detection position, and has the most reference value because detected data are real-time data.
The humidity sensor 201 is a device capable of converting humidity into an electrical signal which is easy to be measured and processed, and the lithium chloride resistor type is adopted in the embodiment, so that the humidity sensor has the advantages of simple structure, small volume, quick response, high sensitivity, and +/-1% RH precision, is commonly used for a high-precision humidity automatic control system, and has the beneficial effect of improving the system precision.
The control circuit board 100 is provided with a single chip microcomputer 101, the single chip microcomputer 101 is used for receiving air humidity information of the humidity sensor 201 and controlling the rotating speed of the variable frequency motor 203 through the variable frequency driver 204, the single chip microcomputer 101 is installed on the control circuit board 100 through a surface mounting technology, and an input/output (I/O) port of the single chip microcomputer 101 is electrically connected with the humidity sensor 201 through a circuit.
The single chip microcomputer 101 is an integrated circuit chip, also called a monolithic microcontroller, and adopts a very large scale integrated circuit technology to integrate functions of a central processing unit CPU with data processing capability, a random access memory RAM, a read only memory ROM, various I/O ports, an interrupt system, a timer/counter and the like onto a silicon chip to form a small and perfect microcomputer system, which is widely applied in the field of industrial control.
In the embodiment, the single chip microcomputer 101 adopts an STM32F103 type and a Cortex-M3 inner core, and the highest speed of a CPU reaches 72 MHz. Specifically, by adopting the STM32F103R6T6A, the single chip microcomputer is provided with 32KB Flash, various control peripherals, a USB full-speed interface and a CAN, and the single chip microcomputer has the advantages of being fast and efficient and guaranteeing the real-time property.
To improve accuracy, the present embodiment employs closed-loop control, returning the output as controlled to the input as control in a manner and applying a control relationship of control influence to the input. In order to realize closed-loop control, the encoder 202 is installed on the variable frequency motor 203 and is used for collecting the rotation speed information of the variable frequency motor 203 and feeding the rotation speed information back to the single chip microcomputer 101.
In order to increase anti-interference performance, ensure accuracy of collected signals and protect safety of the single chip microcomputer 101, the control circuit board 100 is further provided with a photoelectric isolator 102, one end of the photoelectric isolator 102 is electrically connected with the encoder 202, and the other end of the photoelectric isolator is electrically connected with the single chip microcomputer 101, wherein the type of the photoelectric isolator (102) is EL 817C. Fig. 4 is a schematic diagram of the principle of the optoelectronic isolator in the present invention, in which the optical coupler transmits electrical signals using light as a medium, and has a good isolation effect on the input and output electrical signals, and the optoelectronic isolator is formed by encapsulating a light emitting diode and a phototransistor in the same tube, and they make the LED radiation energy effectively coupled to the phototransistor in the structural arrangement.
When variable frequency motor 203 begins to drive the impeller and rotates, the water of wet film begins to evaporate under the effect of wind, and along with the improvement of rotational speed, the evaporation is faster and faster, and the heat and mass exchange coefficient increases, and the humidification effect can improve.
However, when the wind speed reaches a certain level, the contact time between the air and the wet film is shortened, and the humidifying effect is weakened.
In the whole process, the humidity sensor 201 detects in real time, and the singlechip 101 records data in an internal RAM storage area; the encoder 202 also collects the rotating speed information of the variable frequency motor 203 in real time and transmits the data back to the single chip microcomputer 101, and the single chip microcomputer 101 records the data in an internal RAM storage area; the single chip microcomputer 101 calculates a relationship between humidity information and rotation speed information through a program according to the humidity information and the rotation speed information on the time axis, and judges that when the speed is a certain specific value, the humidity reaches the maximum at the moment, and the single chip microcomputer 101 controls the variable frequency motor 203 to work at the speed through the variable frequency driver 204. Since the humidity is also affected by temperature and other factors, the relationship between the humidity information and the rotation speed information is dynamically changed, and therefore, a specific value of the rotation speed of the variable frequency motor is not limited herein.
Through the scheme, the utility model provides an energy-conserving humidification system of building new trend has beneficial effect is:
the problem that the wind speed can not be accurately adjusted is effectively solved, the rotating speed of the variable frequency motor can be adjusted according to the air humidity, the speed and the humidity are automatically matched by detecting the rotating speed of the variable frequency motor, the humidity is maximized at a certain speed by the wind speed, the problem that the wind speed is too large and the humidity is small on the contrary is solved, the system efficiency is maximized, and the electric energy is saved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, modifications, equivalents and improvements can be made without departing from the spirit and scope of the invention.
Claims (6)
1. Energy-conserving humidification system of building new trend, including inverter motor (203), frequency conversion driver (204), its characterized in that still includes:
the humidity sensor (201), the encoder (202) and the control circuit board (100);
the humidity sensor (201) is arranged at an air outlet of the fresh air energy-saving humidifying system and used for detecting air humidity, and the humidity sensor (201) is electrically connected with the control circuit board (100);
the encoder (202) is installed on the variable frequency motor (203) and used for collecting rotating speed information of the variable frequency motor (203), and the encoder (202) is electrically connected with the control circuit board (100).
2. The fresh air energy-saving humidifying system for the building as claimed in claim 1, wherein a single chip microcomputer (101) is arranged on the control circuit board (100), and the single chip microcomputer (101) is used for receiving air humidity information of the humidity sensor (201) and controlling the motion state of the variable frequency motor (203) through the variable frequency driver (204).
3. The fresh air energy-saving humidifying system of a building as claimed in claim 2, wherein the type of the single chip microcomputer (101) is STM32F 103.
4. The fresh air energy-saving humidifying system for the building as claimed in claim 2, wherein the control circuit board (100) further comprises a photoelectric isolator (102) for isolating and protecting the single chip microcomputer (101);
one end of the photoelectric isolator (102) is electrically connected with the encoder (202), and the other end of the photoelectric isolator is electrically connected with the singlechip (101).
5. The fresh air energy-saving humidifying system for buildings as claimed in claim 4, wherein the photoelectric isolator (102) is of type EL 817C.
6. The fresh air energy-saving humidifying system for buildings according to claim 1, wherein the humidity sensor (201) is a lithium chloride resistance type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914934.7U CN212081547U (en) | 2020-05-27 | 2020-05-27 | Fresh air energy-saving humidifying system for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914934.7U CN212081547U (en) | 2020-05-27 | 2020-05-27 | Fresh air energy-saving humidifying system for building |
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| CN212081547U true CN212081547U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020914934.7U Active CN212081547U (en) | 2020-05-27 | 2020-05-27 | Fresh air energy-saving humidifying system for building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483424A (en) * | 2021-05-12 | 2021-10-08 | 安徽嘉乐斯乐净化工程有限公司 | Environment self-adaptation formula humidifier |
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2020
- 2020-05-27 CN CN202020914934.7U patent/CN212081547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483424A (en) * | 2021-05-12 | 2021-10-08 | 安徽嘉乐斯乐净化工程有限公司 | Environment self-adaptation formula humidifier |
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