CN215965412U - Intelligent fume hood ventilating system and fume hood - Google Patents
Intelligent fume hood ventilating system and fume hood Download PDFInfo
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- CN215965412U CN215965412U CN202120801269.5U CN202120801269U CN215965412U CN 215965412 U CN215965412 U CN 215965412U CN 202120801269 U CN202120801269 U CN 202120801269U CN 215965412 U CN215965412 U CN 215965412U
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Abstract
The utility model relates to an intelligent fume hood ventilation system and a fume hood, comprising: the system comprises a fan, a ventilation pipeline, an air speed sensor, an electric air valve and control equipment; the air speed sensor is arranged on the ventilation pipeline, the electric air valve is arranged on the ventilation pipeline, and the fan is arranged at the air inlet of the ventilation pipeline; the fan is communicated with the target ventilation cabinet through a ventilation pipeline, and the air speed sensor, the electric air valve and the fan are electrically connected with the control equipment; the wind speed sensor detects the real-time wind speed of a ventilation pipeline corresponding to a target ventilation cabinet, the control equipment controls the rotating speed of the fan and the opening angle of the electric air valve so as to change the real-time wind speed to the target wind speed, and through automatic adjustment of the wind speed, the problem that a single fan is connected with a plurality of randomly increased and decreased air suction ports and the ventilation condition of the ventilation cabinet, the system automatically and intelligently keeps constant wind speed and wind quantity is effectively solved, the influence of harmful gas on human bodies in experiments is reduced, the experiment safety is guaranteed, and the intelligent level of the ventilation system is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of experimental equipment, and particularly relates to an intelligent fume hood ventilating system and a fume hood.
Background
In a biological or chemical laboratory, fume hoods used for carrying out experiments often generate toxic and harmful gases or other gases which cause health or potential safety hazards to operators, the generated gases diffuse in the laboratory environment and enter the bodies of the operators along with the breathing of the operators, so the environmental requirements of the laboratory are generally higher, providing a stable environment for an experimenter is also crucial to the accuracy of experimental data, a special ventilation experiment cabinet is usually designed in the existing laboratory to carry out experiments with a large amount of toxic and harmful gases, however, for general experiments, toxic and harmful gases or volatile substances may be generated, the general experiments may be carried out on open fume hoods, and the entering of the ventilation experiment cabinet may bring inconvenience to the operation.
Different experiments need different wind speeds and amount of wind, the experiment produces poisonous and harmful gas, need the big and high ventilation environment of wind speed of the volume of taking out air, the experiment has under the condition that weak flame lasts the heating, need moderate stable wind speed and carry out ventilation, need an intelligent ventilation system who is applicable to the fume chamber under the condition of same fan and same set of air pipe to guarantee that different single convulsions point keeps the safety of required wind speed and invariable amount of wind with operating personnel and experimental condition separately in the ventilation system of same fan and same set of air pipe.
SUMMERY OF THE UTILITY MODEL
In order to at least solve the problems in the prior art, the utility model provides an intelligent ventilation cabinet or a ventilation system for controlling the wind speed and the wind volume so as to ensure the personal safety of experiment operators.
The technical scheme provided by the utility model is as follows:
in one aspect, an intelligent fume hood ventilation system, comprising: the system comprises a fan, a ventilation pipeline, an air speed sensor, an electric air valve and control equipment;
the air speed sensor is arranged on the ventilation pipeline, the electric air valve is arranged on the ventilation pipeline, and the fan is arranged at an air inlet of the ventilation pipeline;
the fan is communicated with a target ventilation cabinet through the ventilation pipeline, and the air speed sensor, the electric air valve and the fan are electrically connected with the control equipment;
the wind speed sensor detects the real-time wind speed of a ventilation pipeline corresponding to the target ventilation cabinet, and the control equipment controls the rotating speed of the fan and the opening angle of the electric air valve so as to change the real-time wind speed to the target wind speed.
Optionally, the control device includes: the intelligent control system comprises a control electronic box and an intelligent control main board;
the intelligent control main board is connected with the electric air valve through the control electric box and is also connected with the air speed sensor;
the intelligent control main board is controlled according to user instructions through the control electronic box control the rotational speed of fan with the opening angle of electronic blast gate.
Optionally, the control device further includes: a target terminal;
the target terminal is in communication connection with the intelligent control mainboard, and the target terminal is used for inputting a target wind speed to the intelligent control mainboard.
Optionally, the target terminal includes: at least one of a touch screen, a computer and a handheld terminal;
the touch screen, the computer and the handheld terminal are in communication connection with the intelligent control main board and used for inputting the target wind speed.
Optionally, the communication protocol between the target terminal and the intelligent control motherboard includes: RS485 communication protocol, IIC communication protocol, Modbus protocol or BX self-defined protocol.
Optionally, the above-mentioned intelligent ventilation hood ventilation system further includes: a frequency converter;
the frequency converter is connected with the control equipment and the fan, and is used for adjusting the rotating speed of the fan according to the target wind speed.
Optionally, the above-mentioned intelligent ventilation hood ventilation system further includes: a storage device;
the storage device is connected with the control device and used for storing operation process logs.
Optionally, the intelligent control main board is a single chip microcomputer.
Optionally, the fan is a centrifugal fan.
In another aspect, a fumehood comprising an intelligent fumehood ventilation system as claimed in any one of the above claims and a plurality of fumehood;
the intelligent ventilation cabinet ventilation system is used for ventilating the plurality of ventilation cabinets.
The utility model has the beneficial effects that:
the utility model provides an intelligent fume hood ventilation system and a fume hood, comprising: the system comprises a fan, a ventilation pipeline, an air speed sensor, an electric air valve and control equipment; the air speed sensor is arranged on the ventilation pipeline, the electric air valve is arranged on the ventilation pipeline, and the fan is arranged at the air inlet of the ventilation pipeline; the fan is communicated with the target ventilation cabinet through a ventilation pipeline, and the air speed sensor, the electric air valve and the fan are electrically connected with the control equipment; the wind speed sensor detects the real-time wind speed of a target ventilation cabinet corresponding to a ventilation pipeline, the control equipment controls the rotating speed of the fan and the opening angle of the electric air valve so as to change the real-time wind speed to the target wind speed, the influence of harmful gas on human bodies in an experiment is effectively solved through automatic adjustment of the wind speed, the experiment safety is guaranteed, the system automatically balances the set wind speed and the set wind volume of a plurality of air suction ports, and the intelligent level of the ventilation system is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an intelligent ventilation hood ventilation system according to an embodiment of the present invention;
FIG. 2 is a control level diagram of the control equipment of the intelligent fumehood ventilation system of FIG. 1;
figure 3 is a control logic diagram for the intelligent fumehood ventilation system of figure 1.
Reference numerals:
1. a fan; 2. a ventilation duct; 3. a wind speed sensor; 4. an electric air valve; 5. controlling an electric box; 6. an intelligent control main board; 7. a touch screen; 8. a frequency converter; A. fume chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
FIG. 1 is a schematic diagram of an intelligent ventilation hood ventilation system according to an embodiment of the present invention;
FIG. 2 is a control level diagram of the control equipment of the intelligent fumehood ventilation system of FIG. 1; figure 3 is a control logic diagram for the intelligent fumehood ventilation system of figure 1.
As shown in fig. 1, the present embodiment provides an intelligent ventilation hood ventilation system, including: the air conditioner comprises a fan 1, a ventilating duct 2, an air speed sensor 3, an electric air valve 4 and control equipment; the air speed sensor 3 is arranged on the ventilation pipeline 2, the electric air valve 4 is arranged on the ventilation pipeline 2, and the fan 1 is arranged at an air inlet of the ventilation pipeline 2; the fan 1 is communicated with a target ventilation cabinet through a ventilation pipeline 2, and the air speed sensor 3, the electric air valve 4 and the fan 1 are electrically connected with control equipment; the wind speed sensor 3 detects the real-time wind speed of the target ventilation cabinet corresponding to the ventilation pipeline 2, and the control equipment controls the rotating speed of the fan 1 and the opening angle of the electric air valve 4 so as to change the real-time wind speed to the target wind speed.
In a specific realization process, for explaining the application of the intelligent fume hood ventilation system to the fume hood A as an example, the centrifugal fan 1 can be selected by the fan 1, and the core intelligent control main board 6 of the control equipment can adopt a single chip microcomputer to perform equipment control, information flow and workflow coordination and management. The specific working process is as follows: firstly, a power supply is switched on, a ventilation system is started, then a user determines required air volume according to actual experimental requirements of the user, the target air volume is directly input to an applicable numerical value through control equipment, the air speed adjusting range can be 0.4-1.5 m/s, then the control equipment receives set air volume parameters, an air speed signal is collected through an air speed sensor 3, and then the control equipment controls the rotating speed of a fan 1 and the opening angle of an electric air valve 4 according to the collected air speed signal, so that the control of the air speed is realized until the balanced and stable air volume is output.
The intelligent ventilation cabinet ventilation system that this embodiment provided includes: the system comprises a fan, a ventilation pipeline, an air speed sensor, an electric air valve and control equipment; the air speed sensor is arranged on the ventilation pipeline, the electric air valve is arranged on the ventilation pipeline, and the fan is arranged at the air inlet of the ventilation pipeline; the fan is communicated with the target ventilation cabinet through a ventilation pipeline, and the air speed sensor, the electric air valve and the fan are electrically connected with the control equipment; the wind speed sensor detects the real-time wind speed of a target ventilation cabinet corresponding to a ventilation pipeline, the control equipment controls the rotating speed of the fan and the opening angle of the electric air valve so as to change the real-time wind speed to the target wind speed, the influence of harmful gas on human bodies in experiments is effectively solved through automatic adjustment of the wind speed, the experiment safety is guaranteed, and the intelligent level of the ventilation system is effectively improved.
Specifically, the control device may include: a control electronic box 5 and an intelligent control main board 6; the intelligent control main board 6 is connected with the electric air valve 4 through a control electric box 5, and the intelligent control main board 6 is also connected with the air speed sensor 3; the intelligent control main board 6 controls the opening angle of the electric air valve 4 through the control electronic box 5 according to the user instruction. The control apparatus may further include: a target terminal; target terminal and intelligent accuse mainboard 6 communication connection, target terminal are used for inputing target wind speed to intelligent accuse mainboard 6, and target terminal includes: at least one of a touch screen 7, a computer and a handheld terminal; touch-control screen 7, computer and handheld terminal all control 6 communication connection of mainboard with the intelligence for input target wind speed, the communication protocol of mainboard is controlled with the intelligence to target terminal includes: RS485 communication protocol, IIC communication protocol, Modbus protocol or BX self-defined protocol. The user can input the target wind speed through the touch screen 7, a computer or a handheld terminal such as a mobile phone, and can establish communication connection with the singlechip through any one of an RS485 communication protocol, an IIC communication protocol, a Modbus protocol or a BX custom protocol, so that the control of the wind volume is realized through the touch screen 7, the computer or the mobile phone.
Further, this embodiment may further include: the frequency converter 8, the frequency converter 8 links to each other with controlgear and fan 1, and frequency converter 8 is used for adjusting the rotational speed of fan 1 according to target wind speed, and frequency converter 8 passes through the frequency of singlechip control frequency converter 8 according to the data at target terminal, and the singlechip is according to the real-time data that wind speed sensor 3 gathered, through the rotational speed of frequency conversion regulation centrifugal fan 1 and the opening angle of electronic blast gate 4.
Further, intelligent fume chamber ventilation system in this embodiment still includes: and the storage device is connected with the control device and is used for storing the operation process log.
As shown in fig. 2 and fig. 3, fig. 2 is a control signal level diagram of the whole system, which can more intuitively reflect the control level, and the operation relationship of the control logic can be more clearly understood through fig. 3. After the singlechip receives control instructions from a user through terminal equipment, such as a touch screen, a computer, a mobile phone and other external equipment, according to the air volume requirements of different experimental platforms and captured real-time data from the air velocity sensor 3, the opening and closing angles of the electric air valve 4 and the frequency of the frequency converter 8 are automatically calculated, then the instructions are distributed to the air valve controller, the frequency converter 8 and the internal memory in an internal circuit and 485 bus mode, the electric air valve 4 is controlled to be automatically opened and closed at different angles, the frequency converter 8 is automatically adjusted to the required frequency, the running state of the equipment is fed back to the user terminal in real time, an operation process log and the states of each equipment are sent to the internal memory and the computer memory through an IIC bus and a 485 bus, the optimal balance between the optimal power consumption and the actual air volume requirements of the fan 1 is realized, and the air pumping and exhausting process is completed under user-friendly interaction, and the data management in the whole experiment period is achieved, and the intelligent, automatic and data application management of the experiment platform is realized.
Based on the same general inventive concept, the application also protects a fume hood, which comprises the intelligent fume hood ventilating system and a plurality of fume hoods A, wherein the intelligent fume hood ventilating system comprises a plurality of ventilating hoods A; intelligent fume chamber ventilation system is used for ventilating for a plurality of fume chamber A. The problem that a system automatically and intelligently keeps constant wind speed and wind quantity under the condition that a single fan is connected with a plurality of randomly increased and decreased air suction ports and the ventilation condition of a ventilation cabinet is changed is effectively solved, and the influence of harmful gas on human bodies in experiments is reduced. The problem of different wind speeds and the amount of wind that different experiments need is solved, different single convulsions point keeps the safety of required wind speed and invariable amount of wind with operating personnel and experimental condition separately in the ventilation system of same fan and same set of air pipe is guaranteed to intelligent ventilation system, get rid of the experiment effectively and produce poisonous and harmful gas, can solve under the ventilation environment that needs the amount of wind to draw greatly and wind speed is high and the experiment has weak flame to last the heating condition, can provide and alleviate stable wind speed and carry out ventilation, the system automatic balance sets for the wind speed in a plurality of suction openings, the amount of wind, when having improved intelligent level, personnel's safety has still been guaranteed effectively.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An intelligent fume hood ventilation system, comprising: the system comprises a fan, a ventilation pipeline, an air speed sensor, an electric air valve and control equipment;
the air speed sensor is arranged on the ventilation pipeline, the electric air valve is arranged on the ventilation pipeline, and the fan is arranged at an air inlet of the ventilation pipeline;
the fan is communicated with a target ventilation cabinet through the ventilation pipeline, and the air speed sensor, the electric air valve and the fan are electrically connected with the control equipment;
the wind speed sensor detects the real-time wind speed of a ventilation pipeline corresponding to the target ventilation cabinet, and the control equipment controls the rotating speed of the fan and the opening angle of the electric air valve so as to change the real-time wind speed to the target wind speed.
2. The intelligent fumehood ventilation system of claim 1, wherein said control device comprises: the intelligent control system comprises a control electronic box and an intelligent control main board;
the intelligent control main board is connected with the electric air valve through the control electric box and is also connected with the air speed sensor;
the intelligent control main board is controlled according to user instructions through the control electronic box control the rotational speed of fan with the opening angle of electronic blast gate.
3. The intelligent fumehood ventilation system of claim 2, wherein said control apparatus further comprises: a target terminal;
the target terminal is in communication connection with the intelligent control mainboard, and the target terminal is used for inputting a target wind speed to the intelligent control mainboard.
4. The intelligent fumehood ventilation system of claim 3, wherein said target terminal comprises: at least one of a touch screen, a computer and a handheld terminal;
the touch screen, the computer and the handheld terminal are in communication connection with the intelligent control main board and used for inputting the target wind speed.
5. The intelligent ventilation cabinet ventilation system according to claim 3, wherein the communication protocol between the target terminal and the intelligent control mainboard comprises: RS485 communication protocol, IIC communication protocol, Modbus protocol or BX self-defined protocol.
6. The intelligent fumehood ventilation system of claim 1, further comprising: a frequency converter;
the frequency converter is connected with the control equipment and the fan, and is used for adjusting the rotating speed of the fan according to the target wind speed.
7. The intelligent fumehood ventilation system of claim 1, further comprising: a storage device;
the storage device is connected with the control device and used for storing operation process logs.
8. The intelligent ventilation cabinet ventilation system of claim 2, wherein the intelligent control mainboard is a single chip microcomputer.
9. The intelligent fumehood ventilation system of claim 1, wherein said fan is a centrifugal fan.
10. A fumehood comprising an intelligent fumehood ventilation system according to any one of claims 1 to 9 and a plurality of fumehood;
the intelligent ventilation cabinet ventilation system is used for ventilating the plurality of ventilation cabinets and automatically and intelligently keeping constant wind speed and wind quantity along with the increase and decrease of the air suction ports or the change of ventilation conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120801269.5U CN215965412U (en) | 2021-04-19 | 2021-04-19 | Intelligent fume hood ventilating system and fume hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120801269.5U CN215965412U (en) | 2021-04-19 | 2021-04-19 | Intelligent fume hood ventilating system and fume hood |
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| Publication Number | Publication Date |
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| CN215965412U true CN215965412U (en) | 2022-03-08 |
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| CN202120801269.5U Active CN215965412U (en) | 2021-04-19 | 2021-04-19 | Intelligent fume hood ventilating system and fume hood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116562470A (en) * | 2023-07-10 | 2023-08-08 | 苏州毕恩思实验器材有限公司 | Parameter configuration management method and system for purification type fume hood |
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2021
- 2021-04-19 CN CN202120801269.5U patent/CN215965412U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116562470A (en) * | 2023-07-10 | 2023-08-08 | 苏州毕恩思实验器材有限公司 | Parameter configuration management method and system for purification type fume hood |
| CN116562470B (en) * | 2023-07-10 | 2023-09-08 | 苏州毕恩思实验器材有限公司 | Parameter configuration management method and system for purification type fume hood |
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