CN115283391B - Intelligence fume chamber suitable for laboratory - Google Patents
Intelligence fume chamber suitable for laboratory Download PDFInfo
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- CN115283391B CN115283391B CN202211025105.3A CN202211025105A CN115283391B CN 115283391 B CN115283391 B CN 115283391B CN 202211025105 A CN202211025105 A CN 202211025105A CN 115283391 B CN115283391 B CN 115283391B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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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
Abstract
The application relates to an intelligent fume hood suitable for a laboratory, which comprises a fume hood body, wherein a working bin is arranged in the fume hood body, and the intelligent fume hood further comprises: the upper exhaust pipe is communicated with the top end of the fume hood body; the first exhaust assembly is arranged in the upper exhaust pipe; the lower exhaust pipe is communicated with the bottom of the working bin; the second exhaust assembly is arranged in the lower exhaust pipe; the gas density detection module is used for detecting the density value of the polluted gas in the working bin; the processing module is coupled with the gas density detection module, acquires a density value detected by the gas density detection module, compares an internal preset density normal value with the density value, and controls the second exhaust assembly to be started when the density value is larger than the density normal value; and when the density value is not greater than the density normal value, controlling the first exhaust component to be opened. The application has the effect of improving the removal of the polluted gas in the fume hood.
Description
Technical Field
The application relates to the technical field of fume hoods, in particular to an intelligent fume hood suitable for a laboratory.
Background
The main function of the fume hood is the exhausting function, various harmful gases, odor, moisture and inflammable, explosive and corrosive substances are generated during experiment operation in a chemical laboratory, so that the safety of a user is protected, the pollutant in the experiment is prevented from diffusing to the laboratory, the fume hood is required to be used near a pollution source, the number of the used fume hoods is small in the past, and the fume hood is only used in the experiments of particularly harmful and dangerous gases and generating a large amount of heat. The fume hood only plays an auxiliary role of the experiment table. In view of improving the experimental environment, the experiment performed on the laboratory bench is gradually transferred into the fume hood, which requires a function in the fume hood that is most suitable for the use of the equipment.
The structure of the fume chamber is an upper chamber and a lower chamber, the upper chamber is internally provided with a guide plate, a circuit control touch switch, a power socket and the like, and the perspective window adopts toughened glass and can move left and right or up and down. Providing for human operation; the lower cabinet adopts an experimental side table style, the upper surface is provided with a table top, and the lower surface is provided with a cabinet body. The table top can be provided with a small water cup and a tap.
In the related art, an exhaust pipe of the fume hood is usually arranged at the top of the fume hood to remove the polluted gas generated by the experiment in the fume hood, so that the experiment personnel can be prevented from inhaling some polluted gas in the experiment process.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the fume chamber top sets up the exhaust pipe and gets rid of the effect better to the polluted gas that density is little, but gets rid of the effect relatively poor to the polluted gas that density is big easily sink, leads to the polluted gas's in the fume chamber removal efficiency reduction.
Disclosure of Invention
In order to improve the effect of removing the polluted gas in the fume hood and improve the efficiency of removing the polluted gas by the fume hood, the application provides an intelligent fume hood suitable for a laboratory.
The utility model provides an intelligent fume chamber suitable for laboratory, includes the fume chamber body, the work bin has been seted up to the fume chamber body inside, still includes:
the upper exhaust pipe is communicated with the top end of the fume hood body;
a first exhaust assembly mounted within and coaxial with the upper exhaust pipe;
the lower exhaust pipe is communicated with the bottom of the working bin;
a second exhaust assembly mounted within the lower exhaust pipe and coaxial with the upper exhaust pipe;
the gas density detection module is used for detecting the density value of the polluted gas in the working bin;
the processing module is coupled with the gas density detection module, acquires a density value detected by the gas density detection module, compares an internal preset density normal value with the density value, is coupled with the first exhaust assembly, the second exhaust assembly and the processing module, and controls the second exhaust assembly to be opened when the density value is larger than the density normal value; and when the density value is not greater than the density normal value, controlling the first exhaust component to be opened.
By adopting the technical scheme, the gas density detection module works to detect the density value of the polluted gas in the working bin of the fume hood and sends the density value to the processing module, the processing module compares the density value with the density normal value, if the density value is larger than the density normal value, the density of the polluted gas generated by the experiment at the moment is larger, the polluted gas sinks, the processing module starts the second exhaust assembly, and the polluted gas in the working bin is pumped out through the lower exhaust pipe; if the density value is not greater than the density normal value, the polluted gas is easy to float upwards, the processing module controls the first exhaust component to be started, and the polluted gas in the working bin is outwards pumped out through the upper exhaust pipe, so that the removal effect of the polluted gas in the fume hood is improved, and the removal efficiency of the fume hood on the polluted gas is improved.
Optionally, the upper exhaust pipe and the lower exhaust pipe are respectively provided with activated carbon, and the activated carbon is located at one side close to the fume hood body.
Through adopting above-mentioned technical scheme, all set up the active carbon in last blast pipe and the lower blast pipe, in gas that takes out in from the work bin gets into respectively in blast pipe and the lower blast pipe, through the active carbon, the active carbon can adsorb the filtering to the pollutant in the gas to make the pollutant in the exhaust gas less, and then reduce the influence of pollutant to the environment.
Optionally, the first exhaust component and the second exhaust component each include an exhaust fan and an airflow speed detection module, the airflow speed detection module is coupled with the processing module, the airflow speed detection module is used for detecting an airflow speed value generated by the exhaust fan, the processing module is coupled with an exhaust adjusting module, the exhaust adjusting module is used for adjusting the power of the exhaust fan, and the exhaust adjusting module is coupled with the exhaust fan; the processing module acquires the airflow speed value, and increases the power of the exhaust fan through the exhaust adjusting module when the airflow speed value is smaller than a built-in airflow flow speed standard value.
Through adopting above-mentioned technical scheme, after first exhaust subassembly or second exhaust subassembly is controlled by processing module and is opened, exhaust fan and air current velocity of flow detection module simultaneous working, and air current velocity of flow detection module detects the air current velocity of flow value that exhaust fan produced, when air current velocity of flow value is less than the air current velocity of flow standard value, indicates that exhaust fan wind speed is less, influences polluted gas's removal effect, and processing module sends the signal to exhaust regulation module, and exhaust regulation module increases exhaust fan's power to improve exhaust fan's wind speed.
Optionally, the intelligent fume hood applicable to the laboratory further comprises a concentration detection module and an alarm module, wherein the concentration detection module and the alarm module are both coupled with the processing module, and the concentration detection module is used for detecting the concentration value of the polluted gas in the working bin; the processing module acquires the concentration value, and when the concentration value is larger than a preset concentration standard value, the alarm module responds to the alarm.
Through adopting above-mentioned technical scheme, if the concentration value of the polluted gas that concentration detection module detected is greater than the concentration standard value, then the polluted gas in the explanation working bin exceeds standard, and processing module control alarm module makes the warning and reminds to make the experimenter know in time, prevent that the polluted gas that inhalation concentration exceeds standard from taking place to poison.
Optionally, an intelligent fume hood suitable for a laboratory further includes a gear adjusting module, the gear adjusting module is coupled with the processing module and is also coupled with the exhaust fan, and when the concentration value is greater than a preset concentration standard value, the processing module increases the gear of the exhaust fan through the gear adjusting module.
Through adopting above-mentioned technical scheme, if the concentration value of the polluted gas in the working bin is greater than the concentration standard value, when control alarm module makes alarm response, also can increase exhaust fan's gear through gear adjustment module, improve exhaust fan's wind speed to make the concentration value of the polluted gas in the comparatively quick reduction working bin.
Optionally, a smart fume hood adapted for use in a laboratory further comprises a ventilation assembly comprising an intake fan coupled to the processing module; and when the concentration value is larger than a preset concentration standard value, the processing module starts the air inlet fan.
Through adopting above-mentioned technical scheme, if the concentration value of the polluted gas in the working bin is greater than the concentration standard value, processing module is when control alarm module makes alarm response, control gear adjustment module increase exhaust fan power, control air intake fan from outside to the working bin in convulsions to make the polluted gas that concentration exceeds standard in the working bin dilute.
Optionally, the intelligent ventilation cabinet suitable for a laboratory further comprises an air inlet adjusting module, the air inlet adjusting module is used for adjusting the power of an air inlet fan, the ventilation assembly further comprises an air inlet flow rate detecting module, the air inlet flow rate detecting module is used for detecting an air inlet flow rate value generated by the air inlet fan, the air inlet fan is coupled with the air inlet adjusting module, and the air inlet flow rate detecting module and the air inlet adjusting module are both coupled with the processing module; and when the air inlet flow speed value is smaller than the air flow speed standard value, the processing module increases the power of the air inlet fan through the air inlet adjusting module.
By adopting the technical scheme, the air inlet flow speed detection module detects the air inlet flow speed value of the air inlet fan, if the air inlet flow speed value is smaller than the air flow speed value, the air speed of the air inlet fan is smaller, and the processing module controls the air inlet adjustment module to increase the power of the air inlet fan, so that the dilution efficiency of the polluted gas in the working bin is improved.
Optionally, the fume chamber is internal to be provided with the cabinet body, the cabinet body is located the below of work bin, be provided with electronic lead screw in the cabinet body, electronic lead screw top fixedly connected with lift tray, the lift tray is used for placing the experiment articles for use, the work bin bottom seted up with the lift passageway that the lift tray matches, the fume chamber body still is equipped with lifting switch, lifting switch with processing module coupling makes electronic lead screw rotates and orders about the lift of lift tray.
Through adopting above-mentioned technical scheme, after experimenter done the experiment, place the experiment articles for use on the lift tray, it is internal to descend the cabinet of work bin below through lift switch control lift tray to realize accomodating the intelligence of experiment articles for use, better embody intelligent house's design theory. In addition, through the mode, an experimenter does not need to move the perspective window to take out experimental articles, so that leakage of residual polluted gas in the process of taking out the experimental articles is avoided as much as possible.
Optionally, the electric screw is coupled with the processing module, wherein when the concentration value is greater than a preset concentration standard value, the processing module controls the electric screw to rotate so that the lifting tray moves downwards.
Through adopting above-mentioned technical scheme, if the polluted gas concentration value in the working bin exceeds standard, the experimenter continues to carry out the experiment through the working bin of fume hood and has risks, and the processing module controls electric screw to rotate, drives the lifting tray and descends to eliminate the potential safety hazard that the concentration value exceeds standard as far as possible.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the application, the first exhaust component, the second exhaust component, the gas density detection module and the processing module are arranged, if the density value is larger than the density normal value, the fact that the density of the polluted gas generated by the experiment is larger at the moment is indicated, and the polluted gas sinks is indicated, the processing module starts the second exhaust component, and the polluted gas in the working bin is pumped outwards through the lower exhaust pipe; if the density value is not greater than the density normal value, the polluted gas is easy to float upwards, the processing module controls the first exhaust component to be started, and the polluted gas in the working bin is pumped outwards through the upper exhaust pipe, so that the effect of removing the polluted gas in the fume hood is improved, and the efficiency of removing the polluted gas by the fume hood is improved;
2. according to the application, the airflow speed detection module is arranged, after the first exhaust assembly or the second exhaust assembly is controlled to be started by the processing module, the exhaust fan and the airflow speed detection module work simultaneously, the airflow speed detection module detects the airflow speed value generated by the exhaust fan, when the airflow speed value is smaller than the airflow speed standard value, the condition that the exhaust fan wind speed is smaller is indicated, the removal effect of polluted gas is affected, the processing module sends a signal to the gear adjusting module, and the gear adjusting module increases the power of the exhaust fan, so that the wind speed of the exhaust fan is increased.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent fume hood applicable to a laboratory according to an embodiment of the present application;
fig. 2 is a schematic diagram of an architecture of an intelligent fume hood suitable for a laboratory according to an embodiment of the present application.
Reference numerals illustrate: 1. a fume hood body; 2. a working bin; 3. an upper exhaust pipe; 4. a first exhaust assembly; 41. an exhaust fan; 42. an airflow flow rate detection module; 5. a lower exhaust pipe; 6. a second exhaust assembly; 7. a gas density detection module; 8. a processing module; 9. an exhaust gas adjustment module; 10. a concentration detection module; 11. an alarm module; 12. a gear adjusting module; 13. a ventilation assembly; 131. an air intake fan; 132. an intake air flow rate detection module; 14. an intake air adjustment module; 15. a cabinet body; 151. an electric screw rod; 152. lifting the tray; 16. and a lifting switch.
Detailed Description
In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments.
In describing embodiments of the present application, words such as "exemplary," "such as" or "for example" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "illustrative," "such as" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "illustratively," "such as" or "for example," etc., is intended to present related concepts in a concrete fashion.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a alone, B alone, and both A and B. In addition, unless otherwise indicated, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
The application is described in further detail below with reference to fig. 1-2.
The embodiment of the application discloses an intelligent fume hood suitable for a laboratory.
Referring to fig. 1 and 2, an intelligent fume hood suitable for laboratory, including fume hood body 1, work bin 2 has been seted up to fume hood body 1 inside, still includes: the device comprises an upper exhaust pipe 3, a lower exhaust pipe 5, a first exhaust assembly 4, a second exhaust assembly 6, a gas density detection module 7, a processing module 8, an air inlet adjustment module 14, a gear adjustment module 12, a concentration detection module 10, an alarm module 11, a ventilation assembly 13 and an air inlet adjustment module 14;
the upper exhaust pipe 3 is communicated with the top end of the fume hood body 1, and the first exhaust assembly 4 is installed in the upper exhaust pipe 3 and is coaxial with the upper exhaust pipe 3. The lower exhaust pipe 5 is communicated with the bottom of the working bin 2, and the second exhaust assembly 6 is arranged in the lower exhaust pipe 5 and is coaxial with the lower exhaust pipe 5;
the gas density detection module 7 is arranged on the inner wall of the working bin 2 by adopting a gas densimeter, is coupled with the processing module 8 and is used for detecting the density value of the polluted gas in the working bin 2; the processing module 8 adopts a CPU to acquire a density value detected by the gas density detection module 7, compares an internal preset density normal value with the density value, and controls the second exhaust component 6 to be started when the density value is larger than the density normal value; and when the density value is not greater than the density normal value, controlling the first exhaust assembly 4 to be opened.
Specifically, when laboratory personnel carries out chemical experiment through the fume hood, produce the polluted gas, the gaseous density detection module 7 detects the density value of the polluted gas in the work bin 2, input the information of density value to processing module 8, processing module 8 compares the density value with the built-in density normal value, wherein, density normal value is the air density value in fact, if density value is greater than density normal value, then indicate that the polluted gas density in the work bin 2 is bigger, then the air density is bigger and then the subsidence, processing module 8 control is located the second exhaust assembly 6 of lower blast pipe 5 and opens, outwards take out the polluted gas in the work bin 2 through lower blast pipe 5.
If the density value is not greater than the density value, it means that the polluted gas in the working chamber 2 is not more dense than air, does not sink, and possibly floats upwards, and if the second exhaust assembly 6 is started, the efficiency of removing the polluted gas is lower. The final processing module 8 controls the first exhaust assembly 4 positioned in the upper exhaust pipe 3 to be opened, and the polluted gas in the working bin 2 is pumped out through the upper exhaust pipe 3. Thereby improving the effect of removing the polluted gas in the fume hood and improving the efficiency of removing the polluted gas of the fume hood.
For example, the density normal value is 1.29Kg/m, if the density value of the polluted gas detected by the gas density detection module 7 is 1.2Kg/m and is smaller than the density normal value, the polluted gas floats upwards, and then the treatment module 8 starts the first exhaust component 4 to remove the polluted gas better; if the density value of the polluted gas detected by the gas density detection module 7 is 1.4Kg/m < 2 > and is larger than the normal density value. The polluted gas sinks, so that the treatment module 8 can open the second exhaust assembly 6 to remove the polluted gas better.
If the experiment process involves a hot process and a cold process, the temperature in the working bin 2 is reduced in the cold process, the density of the gas in the working bin 2 is increased by more than a density normal value due to expansion with heat and contraction with cold, the processing module 8 also controls the second exhaust component 6 to be opened, and the polluted gas generated in the working bin 2 is pumped out through the lower exhaust pipe 5; the temperature rise in the working bin 2 in the thermal process can cause the gas density to be reduced by not more than the density normal value, the floating condition occurs, and the processing module 8 controls the first exhaust component 4 to be opened so as to outwards extract the polluted gas generated in the working bin 2 through the upper exhaust pipe 3. In this application scenario, the processing module 8 can also intelligently adjust the first exhaust component 4 and the second exhaust component 6, so as to accurately and effectively discharge the polluted gas in the working bin 2.
The upper exhaust pipe 3 and the lower exhaust pipe 5 are respectively provided with active carbon, the active carbon is positioned on one side close to the fume hood body 1, and when the extracted polluted gas passes through the upper exhaust pipe 3 or the lower exhaust pipe 5, the active carbon adsorbs and filters the pollutants in the polluted gas, so that the influence degree of the polluted gas discharged outside the laboratory on the environment is small.
Referring to fig. 1 and 2, each of the first exhaust assembly 4 and the second exhaust assembly 6 includes an exhaust fan 41 and an airflow speed detection module 42, the airflow speed detection module 42 is coupled to the processing module 8, and the airflow speed detection module 42 is configured to detect an airflow speed value generated by the exhaust fan 41; the air intake adjusting module 14 is coupled with the processing module 8, the air intake adjusting module 14 is coupled with the exhaust fan 41, and the air intake adjusting module 14 can adjust the power of the exhaust fan 41; wherein, the processing module 8 obtains the air flow speed value, and when the air flow speed value is smaller than the built-in air flow speed standard value, the power of the exhaust fan 41 is increased through the gear adjusting module 12. It should be noted that, in the embodiment of the present application, the airflow velocity detection module 42 employs a small wind speed sensor.
Specifically, when the exhaust fan 41 is turned on by the processing module 8, the airflow speed detection module 42 is turned on together, the airflow speed detection module 42 is located at the air outlet side of the exhaust fan 41, the airflow speed value generated by the exhaust fan 41 is detected in real time, information of the airflow speed value is input to the processing module 8, the processing module 8 compares the airflow speed value with an airflow speed standard value, if the airflow speed value is smaller than the airflow speed standard value, it is indicated that the wind speed of the exhaust fan 41 is smaller, the pollutant gas in the working bin 2 cannot be better extracted, the processing module 8 controls the air inlet adjustment module 14 to increase the power of the exhaust fan 41, and the rotation speed of the exhaust fan 41 is increased, so that the wind speed of the exhaust fan 41 is increased, and the pollutant gas in the working bin 2 is extracted more quickly.
Referring to fig. 2, the concentration detection module 10 and the alarm module 11 are both coupled to the processing module 8, the gear adjusting module 12 is coupled to the processing module 8 and also coupled to the exhaust fan 41, and the concentration detection module 10 is installed on the inner wall of the working chamber 2 and is used for detecting the concentration value of the polluted gas in the working chamber 2; wherein the processing module 8 acquires a concentration value, and when the concentration value is larger than a preset concentration standard value, an alarm response is made through the alarm module 11, and the gear of the exhaust fan 41 is increased through the gear adjusting module 12; the processing module 8 is further internally provided with a first concentration value and a second concentration value, the first concentration value is larger than the concentration standard value, a value below the concentration standard value is divided into a first concentration region, a value from the concentration standard value to the first concentration value is divided into a second concentration region, a value from the first concentration value to the second concentration value is divided into a third concentration region, and a value above the second concentration value is divided into a fourth concentration region. The gear adjustment module 12 may adjust the gear to have four gears, wherein the fourth concentration region corresponds to the strongest gear four and the first concentration region corresponds to the minimum gear one. The concentration detection module 10 uses a gas concentration sensor, and the alarm module 11 uses an alarm bell.
Specifically, the concentration detection module 10 detects the concentration value of the polluted gas in the working bin 2, if the concentration value is greater than the concentration standard value, the concentration of the polluted gas in the working bin 2 exceeds the standard value, and if an experimenter continues the experiment through the fume hood, the potential safety hazard is large, and the processing module 8 controls the alarm module 11 to give an alarm response to remind the experimenter to make a reaction. Meanwhile, if the concentration value is in the second value region, the processing module 8 outputs a second gear adjusting signal to the gear adjusting module 12, and the gear adjusting module 12 increases the currently in first gear to second gear; if the concentration value is in the fourth numerical value region, the processing module 8 outputs a four-gear adjusting signal to the gear adjusting module 12, and the first gear in which the gear adjusting module 12 is currently positioned is increased to the maximum four gears, so that the exhaust fan 41 is adjusted to different reasonable gears according to the concentration values of different polluted gases, and further the polluted gases in the working bin 2 are effectively removed.
Referring to fig. 1 and 2, the ventilation assembly 13 includes an air intake fan 131 and an air intake flow rate detection module 132, the ventilation assembly 13 is mounted on a side wall of the working bin 2, the air intake flow rate detection module 132 is used for detecting an air intake flow rate value generated by the air intake fan 131, the air intake adjusting module 14 and the processing module 8 are both coupled with the air intake fan 131, the air intake flow rate detection module 132 is coupled with the processing module 8, and when the concentration value is greater than a concentration standard value, the processing module 8 controls the air intake fan 131 to be turned on, so that the air intake fan 131 pumps air from outside to inside. If the intake air flow rate value detected by the intake air flow rate detection module 132 is smaller than the airflow flow rate standard value, the air speed of the intake air is insufficient, the effect on the out-of-standard polluted gas is poor, the processing module 8 sends a power increasing signal to the intake air adjusting module 14, the intake air adjusting module 14 increases the power of the intake fan 131, the air speed of the intake fan 131 is increased, and further the dilution of the out-of-standard polluted gas in the working bin 2 is accelerated.
Referring to fig. 1 and 2, a cabinet body 15 is arranged in a fume hood body 1, the cabinet body 15 is positioned below a working bin 2, an electric screw rod 151 is arranged in the cabinet body 15, the top end of the electric screw rod 151 is fixedly connected with a lifting tray 152, the lifting tray 152 is used for placing experimental articles, a lifting channel matched with the lifting tray 152 is arranged at the bottom of the working bin 2, a lifting switch is further arranged on the fume hood body 1, and the lifting switch is coupled with a processing module 8 so that the electric screw rod 151 rotates to drive the lifting tray 152 to lift; when the concentration value is greater than the preset concentration standard value, the processing module 8 controls the electric screw rod 151 to rotate, so that the lifting tray 152 moves downwards.
Specifically, when an experimenter needs to put an experimental article into the working bin 2 of the ventilation cabinet, the experimental article can be put on the lifting tray 152 at the top end of the electric screw rod 151, then the experimenter operates the lifting switch, the electric screw rod 151 drives the lifting tray 152 to move upwards, the lifting tray 152 enters a lifting channel, when the upper surface of the lifting tray 152 is level with the bottom surface in the working bin 2, the electric screw rod 151 rotates to drive the distance of the lifting tray 152 to reach the maximum value, and the lifting tray 152 stops moving upwards; after the experiment is done to the experimenter, need not to manually carry out the accomodating of experiment articles, experimenter operation lifting switch, electric lead screw 151 drive lifting tray 152 downwardly moving, lifting tray 152 descends to the cabinet body 15 in, also with the experiment articles one-key storage of lifting tray 152 in the cabinet body 15, conveniently accomplish the accomodating of experiment articles. If the concentration value of the polluted gas in the working bin 2 is larger than the concentration standard value, the safety risk is larger, the processing module 8 controls the electric screw rod 151 to move downwards, experimental articles are stored in the cabinet body 15, and the experiment is temporarily stopped, so that the poisoning of experimental staff is avoided.
The implementation principle of the intelligent ventilation cabinet suitable for the laboratory provided by the embodiment of the application is as follows: when experimenters carry out experiments through the fume hood, polluted gas is generated, and if the density value detected by the gas detection module is larger than the density normal value, the processing module 8 controls the second exhaust assembly 6 to be opened; if the density value is not greater than the density normal value, the processing module 8 controls the first exhaust component 4 to be opened; after the first exhaust component 4 or the second exhaust component 6 is turned on, the airflow speed detection module 42 is turned on to detect an airflow speed value generated by the exhaust fan 41, and if the airflow speed value is smaller than the airflow speed standard value, the processing module 8 increases the power of the exhaust fan 41 through the exhaust adjustment module 9. If the concentration value of the polluted gas detected by the concentration detection module 10 is larger than the standard value, the processing module 8 controls the alarm module 11 to give an alarm prompt, and increases the gear of the exhaust fan 41 through the gear adjustment module 12; in addition, the processing module 8 turns on the air inlet fan 131 to dilute the polluted air, and controls the electric screw 151 to rotate so as to drive the lifting tray 152 to move downwards.
The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.
Claims (7)
1. The utility model provides an intelligent fume chamber suitable for laboratory, includes fume chamber body (1), work bin (2) have been seted up to fume chamber body (1) inside, its characterized in that still includes:
an upper exhaust pipe (3) communicated with the top end of the fume hood body (1);
a first exhaust assembly (4) mounted inside the upper exhaust pipe (3) and coaxial with the upper exhaust pipe;
the lower exhaust pipe (5) is communicated with the bottom of the working bin (2);
a second exhaust assembly (6) mounted inside the lower exhaust pipe (5) and coaxial with the lower exhaust pipe;
the gas density detection module (7) is used for detecting the density value of the polluted gas in the working bin (2);
the processing module (8) is coupled with the gas density detection module (7), acquires a density value detected by the gas density detection module (7), compares an internal preset density normal value with the density value, and controls the second exhaust assembly (6) to be opened when the density value is larger than the density normal value; when the density value is not larger than the density normal value, the first exhaust component (4) is controlled to be opened,
the concentration detection module (10) is used for detecting the concentration value of the polluted gas in the working bin (2);
the utility model provides a cabinet body (15) is provided with in fume chamber body (1), the cabinet body (15) is located the below of work storehouse (2), be provided with electronic lead screw (151) in the cabinet body (15), electronic lead screw (151) top fixedly connected with lift tray (152), lift tray (152) are used for placing the experiment article, the lift passageway that matches with lift tray (152) is seted up to work storehouse (2) bottom, fume chamber body (1) still is equipped with lifting switch, lifting switch with processing module (8) coupling is so that electronic lead screw (151) rotation is driven the lift of lift tray (152), electronic lead screw (151) with processing module (8) coupling is done after the experiment of experimenter, wherein, processing module (8) are in when the concentration value is greater than the concentration standard value of predetermineeing, control electronic lead screw (151) rotate, make lift tray (152) move down to suspend and will experiment article (15) in with the cabinet.
2. An intelligent fume hood adapted for use in a laboratory as set forth in claim 1 wherein: the upper exhaust pipe (3) and the lower exhaust pipe (5) are respectively provided with active carbon, and the active carbon is positioned at one side close to the fume hood body (1).
3. An intelligent fume hood adapted for use in a laboratory as set forth in claim 1 wherein: the first exhaust component (4) and the second exhaust component (6) both comprise an exhaust fan (41) and an airflow speed detection module (42), the airflow speed detection module (42) is coupled with the processing module (8), the airflow speed detection module (42) is used for detecting an airflow speed value generated by the exhaust fan (41), the processing module (8) is coupled with an exhaust regulation module (9), the exhaust regulation module (9) regulates the power of the exhaust fan (41), and the exhaust regulation module (9) is coupled with the exhaust fan (41); the processing module (8) acquires the air flow speed value, and the power of the exhaust fan (41) is increased through the exhaust adjusting module (9) when the air flow speed value is smaller than a built-in air flow speed standard value.
4. A laboratory-friendly intelligent fume hood according to claim 3, wherein: the concentration detection module (10) and the alarm module (11) are coupled with the processing module (8); the processing module (8) acquires the concentration value, and when the concentration value is larger than an internal preset concentration standard value, an alarm response is made through the alarm module (11).
5. A laboratory-friendly intelligent fume hood according to claim 3, wherein: the automatic control device further comprises a gear adjusting module (12), wherein the gear adjusting module (12) is coupled with the processing module (8) and is also coupled with the exhaust fan (41), and when the concentration value of the processing module (8) is larger than a preset concentration standard value, the gear of the exhaust fan (41) is increased through the gear adjusting module (12).
6. An intelligent fume hood adapted for use in a laboratory as set forth in claim 5 wherein: also included is a ventilation assembly (13), the ventilation assembly (13) comprising an intake fan (131), the intake fan (131) being coupled with the processing module (8); and when the concentration value is larger than a preset concentration standard value, the processing module (8) starts the air inlet fan (131).
7. An intelligent fume hood adapted for use in a laboratory as set forth in claim 6 wherein: the air intake system further comprises an air intake adjusting module (14), wherein the air intake adjusting module (14) is used for adjusting the power of an air intake fan (131), the air exchange assembly (13) further comprises an air intake flow rate detecting module (132), the air intake flow rate detecting module (132) is used for detecting an air intake flow rate value generated by the air intake fan (131), the air intake fan (131) is coupled with the air intake adjusting module (14), and the air intake flow rate detecting module (132) and the air intake adjusting module (14) are both coupled with the processing module (8); and when the air inlet flow speed value of the processing module (8) is smaller than the air flow speed standard value, the power of the air inlet fan (131) is increased through the air inlet adjusting module (14).
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| CN202211025105.3A CN115283391B (en) | 2022-08-25 | 2022-08-25 | Intelligence fume chamber suitable for laboratory |
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| CN115283391A (en) | 2022-11-04 |
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