CN209782906U - Energy-conserving exhaust system in laboratory - Google Patents
Energy-conserving exhaust system in laboratory Download PDFInfo
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- CN209782906U CN209782906U CN201920323480.3U CN201920323480U CN209782906U CN 209782906 U CN209782906 U CN 209782906U CN 201920323480 U CN201920323480 U CN 201920323480U CN 209782906 U CN209782906 U CN 209782906U
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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 discloses an energy-conserving exhaust system in laboratory, including exhaust subsystem, tonifying wind subsystem, sensor unit and the control unit. Air in the laboratory containing harmful substances is discharged through the air exhaust subsystem, toxic and harmful substances are filtered through a waste gas purification device in the air exhaust subsystem, pollution to the external environment is avoided, fresh air is supplemented for the laboratory while air is exhausted through the air supplement subsystem, harmful gas in the air in the laboratory and the air pressure in the laboratory are detected through corresponding sensors in the sensor units, air quantity in air supplement and exhaust pipelines is detected, the air supplement quantity of the air exhaust subsystem and the air exhaust quantity of the air supplement subsystem are adjusted by the control unit according to detection results of all sensors in the sensor detection unit, therefore, harmful gas in the laboratory is discharged in time, electric energy can be effectively saved, and balance of the air pressure in the laboratory is realized.
Description
Technical Field
The utility model relates to a laboratory technical field that airs exhaust especially relates to an energy-conserving exhaust system in laboratory.
Background
The environmental requirement of laboratory is generally higher, because some volatility test reagent commonly used can be deposited in the laboratory, these volatility reagents can produce volatile gas usually, and some are poisonous and harmful, also can produce harmful gas during the experiment in addition, to experimental environment influence, not only can influence the accuracy of test data, harmful gas still can influence experimenter's physical and mental health, therefore the laboratory has corresponding exhaust system usually, in time updates the ambient air in the laboratory. But current laboratory exhaust system need manually open in the laboratory when someone just can air exhaust usually, and the poisonous and harmful gas of volatility that volatile laboratory reagent produced that like this deposited in the laboratory under the unmanned condition in laboratory can stop in the laboratory, causes the influence to laboratory staff's health when laboratory staff just gets into the laboratory. In addition, the exhaust fan in the existing laboratory exhaust system cannot be adjusted according to the actual exhaust air volume, and as long as the exhaust fan is started, the exhaust fan can exhaust air in full volume, consume a large amount of electric energy, cause serious resource waste, and influence the air pressure balance of the internal environment of the laboratory.
In conclusion, the existing laboratory exhaust system is not intelligent enough, not energy-saving enough and needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art at least, innovated a laboratory energy-conserving exhaust system very much, effectively solved among the prior art problem that laboratory exhaust system is not intelligent enough and not energy-conserving enough.
In order to realize the above purpose of the utility model, the utility model provides an energy-saving exhaust system for laboratories, which is characterized by comprising an exhaust subsystem, an air supplement subsystem, a sensor unit and a control unit, wherein the exhaust subsystem comprises a fume hood, an exhaust main pipeline, an exhaust fan, a waste gas purification device and an exhaust outlet which are sequentially communicated, the exhaust outlet is arranged outside the laboratory, the fume hood is communicated with the exhaust main pipeline through an exhaust branch pipe, and the exhaust branch pipe is provided with an exhaust regulating valve; the air supplementing subsystem comprises an air supplementing fan, an air supplementing filtering device, an air supplementing pipe, an air supplementing adjusting valve and an air supplementing air outlet which are sequentially communicated, and the air supplementing air outlet is communicated with a laboratory; the sensor unit includes: the air pressure sensor and the VOC sensor are arranged in the laboratory, the first air quantity sensor is arranged in the exhaust branch pipe, the second air quantity sensor is arranged in the main exhaust pipeline, and the third air quantity sensor is arranged at the air supplementing air outlet; the control unit comprises a controller and a frequency converter; the exhaust fan is connected with the signal output end of the frequency converter, the signal input end of the frequency converter is connected with the controller, and the ventilation cabinet, the exhaust adjusting valve, the air supplementing fan, the air supplementing adjusting valve, the air pressure sensor, the VOC sensor, the first air quantity sensor, the second air quantity sensor and the third air quantity sensor are respectively in signal connection with the controller.
the utility model discharges the air in the laboratory containing harmful substances through the exhaust subsystem, filters the toxic and harmful substances through the waste gas purification device, avoids the pollution to the external environment, fresh air is supplemented for the laboratory through the air supplementing subsystem while exhausting air, harmful gas in the air in the laboratory and the air pressure in the laboratory are detected through corresponding sensors in the sensor units, and detecting the air quantity in the air supply and exhaust pipelines, the control unit controls and adjusts the air supply fan, the exhaust fan, the air supply adjusting valve and the exhaust adjusting valve according to the detection result of each sensor in the sensor detection unit, and adjusts the rotating speed of the exhaust fan according to the practical situation of the laboratory fume hood, therefore, harmful gas in the laboratory can be discharged in time, electric energy can be effectively saved, and the balance of the internal air pressure of the laboratory can be realized.
The utility model relates to a rationally, convenient to use can realize the intelligent automatic circulation of the inside air in laboratory to can effectively practice thrift the electric energy, have good use and spreading value.
Preferably, the air pressure sensor and the VOC sensor are arranged at the geometric center of the laboratory. The arrangement enables the detection results of the air pressure sensor and the VOC sensor to reflect the real condition of the ambient air in the laboratory.
Preferably, the air supply filtering device comprises a filtering box body, and a primary filter, a medium filter and a high-efficiency filter which are arranged inside the filtering box body. The exhaust fresh air of benefit fan loops through inside primary filter, the medium efficiency filter and the high efficiency filter of filter box, realizes the tertiary filtration to fresh air, thoroughly filters the dust particle in the air for the air of mending the laboratory is more pure.
Preferably, the air supply fan is a mute fan. Less noise pollution is caused by the mute fan.
Preferably, exhaust gas purification device includes activated carbon adsorption case and air-exhaust purification tower, activated carbon adsorption case's income wind gap with the exhaust fan intercommunication the air outlet of activated carbon adsorption case with air-exhaust purification tower's income wind gap intercommunication, air-exhaust purification tower's air outlet with the air exit intercommunication. The air containing toxic and harmful substances discharged from a laboratory sequentially passes through the activated carbon adsorption box and the exhaust purification tower to filter the toxic and harmful substances in the discharged air, so that the pollution of the toxic and harmful substances to the external environment is avoided.
Preferably, the air exhaust device further comprises a silencing device arranged on the main air exhaust pipeline. The exhaust noise is reduced through the silencing device, and the noise pollution is reduced.
Preferably, the sensor unit further comprises a human body sensor arranged on the fume hood, and the human body sensor is in signal connection with the controller. Whether someone is beside the fume hood is detected through the human body sensor, so that the fume hood and the exhaust fan are controlled to be automatically opened through the controller, and automatic exhaust is realized.
Preferably, the human body sensor is a human body proximity sensor with a model number of YTMW 8631. The human body proximity sensor YTMW8631 can detect the distance of a human body to be adjustable, the detection area is double-fan-shaped, the coverage space range is large, the environment temperature adaptability is high, the human body proximity sensor YTMW8631 is not influenced by temperature, humidity, noise, air flow, dust, light and the like, and the radio frequency interference resistance is strong.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Fig. 1 is a schematic structural view of an energy-saving exhaust system for a laboratory provided by the present invention;
FIG. 2 is a schematic circuit connection diagram of a laboratory energy-saving exhaust system provided by the present invention;
Fig. 3 is a schematic structural view of an air supplement filtering device of an energy-saving exhaust system in a laboratory.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
the utility model provides a laboratory 100 energy-saving exhaust system, as shown in fig. 1-3, including the air exhaust subsystem, mend the air subsystem, sensor unit and the control unit, the air exhaust subsystem is including fume chamber 1, main exhaust pipe 2, exhaust fan 3, exhaust gas purification device 4 and air exit 5 that communicate in proper order, fume chamber 1 sets up inside laboratory 100, main exhaust pipe 2, exhaust fan 3, exhaust gas purification device 4 and air exit 5 set up outside the laboratory, the inside air of laboratory loops through fume chamber 1 under the suction effect of exhaust fan 3, exhaust fan 2, exhaust fan 3, exhaust gas purification device 4 and air exit 5 discharge outside the laboratory, fume chamber 1 communicates through exhaust branch pipe 6 with main exhaust pipe 2, be equipped with air exhaust governing valve 7 on the exhaust branch pipe 6; the air supplementing subsystem comprises an air supplementing fan 8, an air supplementing filtering device 9, an air supplementing pipe 10, an air supplementing adjusting valve 11 and an air supplementing air outlet 12 which are sequentially communicated, the air supplementing air outlet 12 is communicated with the laboratory 100, and fresh air outside the laboratory 100 sequentially enters the laboratory 100 through the air supplementing fan 8, the air supplementing filtering device 9, the air supplementing pipe 10, the air supplementing adjusting valve 11 and the air supplementing air outlet 12 under the suction force of the air supplementing fan; the sensor unit includes: the air pressure sensor 13 and the VOC sensor 14 are arranged in the laboratory 100, the first air volume sensor 15 is arranged in the exhaust branch pipe 6, the second air volume sensor 16 is arranged in the exhaust main pipe 2, and the third air volume sensor 17 is arranged at the air supplement outlet 12, the air pressure in the laboratory 100 is detected through the air pressure sensor 13, the poisonous and harmful volatile gas in the laboratory is detected through the VOC sensor 14, the air volume in the exhaust branch pipe 6 is detected through the first air volume sensor 15, the air volume in the exhaust main pipe 2 is detected through the second air volume sensor 16, and the air volume in the air supplement outlet 12 is detected through the third air volume sensor 17; the control unit comprises a controller 18 and a frequency converter 19; the exhaust fan 3 is connected with the signal output end of a frequency converter 19, the signal input end of the frequency converter 19 is connected with a controller 18, and the fume hood 1, the exhaust air regulating valve 7, the air supplement machine 8, the air supplement regulating valve 11, the air pressure sensor 13, the VOC sensor 14, the first air volume sensor 15, the second air volume sensor 16 and the third air volume sensor 17 are respectively in signal connection with the controller 18. The controller sends signals to the frequency converter 19, and then the frequency converter 19 sends signals to the exhaust fan 3, so that the adjustment of gears with different powers of the exhaust fan 3 is realized.
In the absence or presence of a person in the laboratory, the VOC sensor 14 detects the concentration of the volatile toxic and harmful gases inside the laboratory 100 and sends a signal to the controller 18, when the concentration of the poisonous and harmful gas exceeds the preset concentration, the controller 18 sends an opening control signal to the exhaust fan 3, the exhaust fan 3 is opened to exhaust air, at this time, the air pressure inside the laboratory 100 at this time inside the laboratory 100 is reduced, when the air pressure sensor 13 detects that the air pressure inside the laboratory 100 is lower than the preset threshold range, the controller 18 sends an opening control signal to the air supply blower 8, the air supply blower 8 is started to supply fresh air to the interior of the laboratory 100 until the concentration of the toxic and harmful gases is lower than the preset concentration and the air pressure in the interior of the laboratory 100 reaches the preset threshold range, a stop signal is sent to the exhaust fan 3 and the supplementary fan 8 through the controller, and the exhaust fan 3 and the supplementary fan 8 stop working.
Specifically, in the present embodiment, the exhaust air regulating valve 7 and the air supply regulating valve 11 are both electric butterfly valves, and the exhaust air amount and the air supply amount are adjusted by adjusting the opening of the electric butterfly valves in accordance with a control command from the controller 18. The controller 18 may be embodied as a Siemens PLC, model S7-300.
The utility model discharges the air in the laboratory 100 containing the harmful substances through the air discharge subsystem, and the poisonous and harmful substances are filtered by the waste gas purification device 4, thereby avoiding the pollution to the external environment, fresh air is supplemented to the laboratory 100 while air is exhausted through the air supplementing subsystem, harmful gas in the air inside the laboratory 100 and air pressure inside the laboratory 100 are detected through corresponding sensors in the sensor units, and detecting the air quantity in the air supply and exhaust pipelines, the control unit controls and regulates the air supply fan 8, the exhaust fan 3, the air supply regulating valve 11 and the exhaust regulating valve 7 according to the detection result of each sensor in the sensor detection unit, and adjusts the rotation speed of the exhaust fan 3 according to the practical situation of the fume hood 1 in the laboratory 100, therefore, harmful gas in the laboratory 100 can be discharged in time, electric energy can be effectively saved, and the balance of the air pressure in the laboratory 100 can be realized.
The utility model relates to a rationally, convenient to use can realize the intelligent automatic circulation of laboratory 100's inside air to can effectively practice thrift the electric energy, have good use and spreading value.
In the present embodiment, the air pressure sensor 13 and the VOC sensor 14 are disposed at the geometric center of the laboratory 100. This arrangement makes the results detected by the air pressure sensor 13 and the VOC sensor 14 more reflective of the actual ambient air inside the laboratory 100.
In the present embodiment, the air supply filter device 9 includes a filter casing 901, and a primary filter 902, a secondary filter 903, and a high efficiency filter 904 provided inside the filter casing 901. Fresh air exhausted by the air supply machine 8 sequentially passes through the primary filter 902, the medium-efficiency filter 903 and the high-efficiency filter 904 inside the filter box 901, so that three-stage filtration of the fresh air is realized, dust particles in the air are thoroughly filtered, and the air supplied into the laboratory 100 is purer.
In the present embodiment, the supplementary blower 8 is a silent blower. Less noise pollution is caused by the mute fan.
In the present embodiment, the exhaust gas purification apparatus 4 includes an activated carbon adsorption tank 401 and an exhaust purification tower 402, an air inlet of the activated carbon adsorption tank 401 communicates with the exhaust fan 3, an air outlet of the activated carbon adsorption tank 401 communicates with an air inlet of the exhaust purification tower 402, and an air outlet of the exhaust purification tower 402 communicates with the air outlet 5. The air containing toxic and harmful substances exhausted from the laboratory 100 passes through the activated carbon adsorption box 401 and the exhaust purification tower 402 in sequence, and the toxic and harmful substances in the exhausted air are filtered, so that the pollution of the toxic and harmful substances to the external environment is avoided.
In the present embodiment, a silencer 19 is further provided on the main exhaust duct 2. The exhaust noise is reduced by the silencer 19, and the noise pollution is reduced.
In the present embodiment, the sensor unit further includes a human body sensor 20 disposed on the fume hood 1, and the human body sensor 20 is in signal connection with the controller 18. Whether a person is beside the fume hood 1 is detected through the human body sensor 20, so that the fume hood 1 and the exhaust fan 3 are controlled to be automatically opened through the controller 18, and automatic exhaust is realized.
In the present embodiment, the human body sensor 20 is a human body proximity sensor, and has a model number of YTMW 8631. The human body proximity sensor YTMW8631 can detect the distance of a human body to be adjustable, the detection area is double-fan-shaped, the coverage space range is large, the environment temperature adaptability is high, the human body proximity sensor YTMW8631 is not influenced by temperature, humidity, noise, air flow, dust, light and the like, and the radio frequency interference resistance is strong.
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 invention. 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. an energy-saving exhaust system for a laboratory is characterized by comprising an exhaust subsystem, an air supplementing subsystem, a sensor unit and a control unit, wherein the exhaust subsystem comprises a fume hood, an exhaust main pipeline, an exhaust fan, a waste gas purification device and an exhaust outlet which are sequentially communicated, the exhaust outlet is arranged outside the laboratory, the fume hood is communicated with the exhaust main pipeline through an exhaust branch pipe, and an exhaust regulating valve is arranged on the exhaust branch pipe; the air supplementing subsystem comprises an air supplementing fan, an air supplementing filtering device, an air supplementing pipe, an air supplementing adjusting valve and an air supplementing air outlet which are sequentially communicated, and the air supplementing air outlet is communicated with a laboratory; the sensor unit includes: the air pressure sensor and the VOC sensor are arranged in the laboratory, the first air quantity sensor is arranged in the exhaust branch pipe, the second air quantity sensor is arranged in the main exhaust pipeline, and the third air quantity sensor is arranged at the air supplementing air outlet; the control unit comprises a controller and a frequency converter; the exhaust fan is connected with the signal output end of the frequency converter, the signal input end of the frequency converter is connected with the controller, and the ventilation cabinet, the exhaust adjusting valve, the air supplementing fan, the air supplementing adjusting valve, the air pressure sensor, the VOC sensor, the first air quantity sensor, the second air quantity sensor and the third air quantity sensor are respectively in signal connection with the controller.
2. The laboratory energy saving exhaust system according to claim 1, wherein the air pressure sensor and the VOC sensor are arranged at the geometric center of the laboratory.
3. The laboratory energy-saving exhaust system according to claim 1 or 2, wherein the air supply filtering device comprises a filtering box body, and a primary filter, a medium filter and a high efficiency filter which are arranged inside the filtering box body.
4. The laboratory energy saving exhaust system according to claim 3, wherein the air supply fan is a mute fan.
5. The laboratory energy-saving exhaust system according to claim 1 or 2, wherein the exhaust gas purification device comprises an activated carbon adsorption tank and an exhaust purification tower, an air inlet of the activated carbon adsorption tank is communicated with the exhaust fan, an air outlet of the activated carbon adsorption tank is communicated with an air inlet of the exhaust purification tower, and an air outlet of the exhaust purification tower is communicated with the air outlet.
6. The energy-saving laboratory exhaust system according to claim 1 or 2, further comprising a silencer disposed on the main exhaust duct.
7. The laboratory energy saving exhaust system according to claim 1, wherein the sensor unit further comprises a human body sensor disposed on the fume hood, the human body sensor being in signal connection with the controller.
8. The laboratory energy saving exhaust system according to claim 7, wherein the human body sensor is a human body proximity sensor with a model number YTMW 8631.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323480.3U CN209782906U (en) | 2019-03-14 | 2019-03-14 | Energy-conserving exhaust system in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323480.3U CN209782906U (en) | 2019-03-14 | 2019-03-14 | Energy-conserving exhaust system in laboratory |
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| Publication Number | Publication Date |
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| CN209782906U true CN209782906U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920323480.3U Expired - Fee Related CN209782906U (en) | 2019-03-14 | 2019-03-14 | Energy-conserving exhaust system in laboratory |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162511A (en) * | 2020-09-25 | 2021-01-01 | 天长市高朋实验设备有限公司 | Laboratory ventilation control system based on thing networking |
| CN112611094A (en) * | 2021-01-05 | 2021-04-06 | 辽宁友信德建筑工程有限公司 | Pressure balancing device of laboratory air conditioner circulating system |
| CN118303327A (en) * | 2024-06-11 | 2024-07-09 | 江苏扬子净化工程有限公司 | Large animal house clean room capable of exhausting air safely and method |
-
2019
- 2019-03-14 CN CN201920323480.3U patent/CN209782906U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162511A (en) * | 2020-09-25 | 2021-01-01 | 天长市高朋实验设备有限公司 | Laboratory ventilation control system based on thing networking |
| CN112611094A (en) * | 2021-01-05 | 2021-04-06 | 辽宁友信德建筑工程有限公司 | Pressure balancing device of laboratory air conditioner circulating system |
| CN112611094B (en) * | 2021-01-05 | 2023-01-20 | 辽宁友信德建筑工程有限公司 | Pressure balancing device of laboratory air conditioner circulating system |
| CN118303327A (en) * | 2024-06-11 | 2024-07-09 | 江苏扬子净化工程有限公司 | Large animal house clean room capable of exhausting air safely and method |
| CN118303327B (en) * | 2024-06-11 | 2024-08-13 | 江苏扬子净化工程有限公司 | Large animal house clean room capable of exhausting air safely and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |