CN116617819A - Laboratory exhaust treatment system - Google Patents
Laboratory exhaust treatment system Download PDFInfo
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- CN116617819A CN116617819A CN202310917433.2A CN202310917433A CN116617819A CN 116617819 A CN116617819 A CN 116617819A CN 202310917433 A CN202310917433 A CN 202310917433A CN 116617819 A CN116617819 A CN 116617819A
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- waste gas
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- 239000007789 gas Substances 0.000 claims abstract description 63
- 239000002912 waste gas Substances 0.000 claims abstract description 52
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims description 16
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 25
- 238000000926 separation method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 239000002341 toxic gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1412—Controlling the absorption process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses a laboratory waste gas treatment system, which comprises: the transfer pipe is provided with an opening at one end and is used for being communicated with an exhaust pipeline of the laboratory waste gas, and the other end is closed; the vortex tube is provided with two mutually parallel air channels along the length direction, one air channel is called a direct discharge air channel, and the other air channel is called an air channel to be turned; the valve bank comprises a plurality of first electric control valves which are respectively arranged at the head and tail ports of each air duct; the inner end of the vortex tube is fixed on the outer wall of the transfer tube, the transfer tube is provided with side through holes respectively communicated with two air channels, the outlet of the direct-discharge air channel is communicated with the atmosphere, and the outlet of the air channel to be transferred is communicated with the integrated spray tower; the control module is set as: acquiring and receiving experimental item information sent by a terminal; searching a preset database based on the experimental item information to obtain matched experimental waste gas information; and processing experimental exhaust gas information based on preset exhaust gas logic to obtain a valve control instruction and a tower control instruction. The application has the effect of reducing the operation and maintenance cost of the laboratory waste gas treatment equipment.
Description
Technical Field
The application relates to the technical field of waste gas treatment, in particular to a laboratory waste gas treatment system.
Background
Various types of smoke are often generated in experiments, and the smoke is often pumped out through a fresh air and exhaust system of a laboratory.
In order to protect the environment, the flue gas discharged from the laboratory is first sent to an exhaust gas treatment device, such as: sending the mixture into an integrated spray tower for treatment and then discharging.
However, because of different test projects, the flue gas may be toxic or nontoxic, and is mostly uniformly fed into the waste gas treatment equipment at present, so that the operation and maintenance costs of the waste gas treatment equipment are increased, and the application provides a new technical scheme.
Disclosure of Invention
In order to reduce the operation and maintenance costs of laboratory exhaust gas treatment equipment, the application provides a laboratory exhaust gas treatment system.
The application provides a laboratory waste gas treatment system, which adopts the following technical scheme:
the utility model provides a laboratory exhaust treatment system, includes integration spray column, still includes separator, control module and terminal, separator includes:
the transfer pipe is provided with an opening at one end and is used for being communicated with an exhaust pipeline of the laboratory waste gas, and the other end is closed;
the vortex tube is provided with two mutually parallel air channels along the length direction, one air channel is called a direct discharge air channel, and the other air channel is called an air channel to be turned; the method comprises the steps of,
the valve bank comprises a plurality of first electric control valves which are respectively arranged at the head and tail ports of each air duct;
the inner end of the vortex tube is fixed on the outer wall of the transfer tube, the transfer tube is provided with side through holes which are respectively communicated with two air channels, the outlet of the direct exhaust air channel is communicated with the atmosphere, and the outlet of the air channel to be transferred is communicated with the integrated spray tower;
the control module is electrically connected to the first electric control valve, the terminal and the integrated spray tower, and the control module is set as follows:
acquiring and receiving experimental item information sent by a terminal;
searching a preset database based on the experimental item information to obtain matched experimental waste gas information;
based on the preset exhaust gas logic, experimental exhaust gas information is processed to obtain a valve control instruction and a tower control instruction, so that the direct exhaust air duct and the air duct to be turned are selectively opened, and the air duct to be turned and the integrated spray tower are linked to be opened and closed.
Optionally, the processing of experimental exhaust gas information based on the preset exhaust gas logic includes:
if the experimental waste gas information is identified to be in accordance with the direct exhaust condition, judging that the first electric control valve on the direct exhaust air duct is opened, closing the first electric control valve on the air duct to be turned, and outputting a corresponding valve control instruction I;
if the experimental waste gas information is identified as not meeting the direct exhaust condition, the first electric control valve on the direct exhaust air duct is judged to be closed, the first electric control valve on the air duct to be turned is opened, and a corresponding valve control instruction II and an integrated spray tower working control instruction are output.
Optionally, the device further comprises a plurality of gas sensors arranged in the vortex tube, and the gas sensors are connected to the control module;
the control module is configured to:
acquiring and receiving theoretical content data of various types of waste gas allowed to be directly discharged, and recording the theoretical content data in a database;
and if the content of the certain waste gas fed back by the gas sensor exceeds the theoretical content data, judging that the current experimental waste gas information is identified to be not in line with the direct exhaust condition.
Optionally, two middle through openings are formed in the vortex tube, the two middle through openings are distributed along the length direction of the vortex tube, and the middle through openings are provided with an adaptive electric control valve II;
the probe of the gas sensor extends into the air channel to be turned and is positioned between the two middle through holes;
the control module is configured to:
when the first electric control valve on the direct exhaust air duct is opened, and when the first electric control valve on the air duct to be turned is closed, the second electric control valve is opened;
when the first electric control valve on the direct exhaust air duct is closed and the first electric control valve on the air duct to be turned is opened, the second electric control valve is closed.
Optionally, the control module is configured to: and if the content of the certain waste gas fed back by the gas sensor exceeds the theoretical content data and the experimental waste gas information matched with the current experimental item information accords with the opening condition of the first electric control valve on the direct exhaust air duct, sending experimental item/experimental waste gas content error prompt information to the terminal.
Optionally, the control module is configured to:
when the error prompt information of the experimental item/the experimental waste gas content is sent, recording the waste gas content fed back by the current gas sensor, and receiving the error prompt feedback of the terminal;
and if the number of times of triggering error prompt by the same experiment item information is larger than the preset correction lower limit number of times, correcting the experiment exhaust gas information by the exhaust gas content fed back by the gas sensor in the past.
Optionally, the air channel to be rotated is located at the inner side of the direct exhaust air channel, and the vortex tube is horizontally arranged.
Optionally, be provided with unpowered check valve in the directly discharging wind channel, unpowered check valve includes valve circle, restriction piece, valve block, pivot and dog, valve circle adaptation just is fixed in the inner wall of directly discharging the wind channel, the pivot is fixed in the lateral part of valve block and biases down, the pivot rotates to be connected in the valve circle, the restriction piece is fixed in the inner opening lower edge of valve circle, the inner opening of valve circle and its lower extreme of valve block adaptation valve circle are located the one side that the restriction piece deviates from directly discharging the wind channel export, the dog is fixed in the upper portion of directly discharging the wind channel and is located the rotation route on valve block upper portion.
In summary, the present application includes at least one of the following beneficial technical effects: the user can send experiment item information to control module through the terminal, and control module can look for the database based on experiment item information, discerns exhaust gas information to according to the experimental waste gas automatic switch-over wind channel that probably produces, with deciding whether send into integration spray column with experimental waste gas, thereby this system can reduce exhaust treatment's operation and maintenance cost.
Drawings
FIG. 1 is a schematic diagram of the separation device of the present system;
FIG. 2 is a schematic diagram of the control architecture of the present system;
FIG. 3 is a schematic cross-sectional view of an unpowered check valve of the present system.
Reference numerals illustrate: 1. a separation device; 11. a transfer tube; 12. a swirl tube; 13. a valve group; 2. a control module; 3. a terminal; 4. a gas sensor; 5. an electric control valve II; 6. an unpowered check valve; 61. a valve ring; 62. a limiting block; 63. a valve plate; 64. a rotating shaft; 65. and a stop block.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a laboratory waste gas treatment system.
Referring to fig. 1 and 2, a laboratory exhaust treatment system includes: the integrated spray tower, the separation device 1, the control module 2 and the terminal 3.
The integrated spray tower is used as waste gas separation treatment equipment of the final stage, and any model suitable for a laboratory in the market is selected; it should be noted that the spray control unit (valve) and the air extraction unit of the spray tower should be electric, and the model of the control panel and the control cabinet are integrated preferentially, so as to meet the control access requirement of the system.
The separation device 1 comprises a transfer tube 11, a swirl tube 12 and a valve block 13. The switching pipe 11 is a circular pipe with one end closed, and the opening end of the switching pipe is used for being communicated with an exhaust gas discharge pipeline of a laboratory; two side through openings are formed in the side wall of the switching tube 11, and the two side through openings are distributed along the length of the switching tube 11. The inner end of the vortex tube 12 is fixed on the side wall of the transfer tube 11, two mutually parallel air channels are arranged in the vortex tube 12 along the length direction, one air channel is called a direct exhaust air channel, and the air channel outlet is communicated with the atmosphere; the other air duct is called an air duct to be turned, and the outlet of the air duct is communicated with the air inlet port of the integrated spray tower through a pipeline. The inlets of the two air channels are respectively communicated with the two side through holes so as to be communicated with the switching pipe 11.
The valve group 13 comprises a plurality of first electric control valves, wherein the first electric control valves can be electric butterfly valves, and each first electric control valve is respectively arranged at the inner sides of the inlet and the outlet of the two air channels.
The terminal 3 may be a mobile phone; the control module 2 can be a PLC controller and a computer connected with the PLC controller, the mobile phone is connected with the computer through a wireless network, and the PLC controller is electrically connected with the electric control valve I, the terminal 3 and the integrated spray tower.
The control module 2 is arranged to:
the experimental item information transmitted by the terminal 3 is acquired and received, for example: experiment numbering;
searching a preset database based on the experimental item information, wherein the database can be pre-recorded with experimental item details matched with each experimental number, including experimental materials, reaction equations, experimental products and the like; through the search of experiment numbers, matched experiment waste gas information can be obtained through experiment products;
based on the preset exhaust gas logic, experimental exhaust gas information is processed to obtain a valve control instruction and a tower control instruction, so that the direct exhaust air duct and the air duct to be turned are selectively opened, and the air duct to be turned and the integrated spray tower are linked to be opened and closed.
According to the above, the user can send the experimental information to the control module 2 through the terminal, the control module 2 can automatically search the database based on the experimental information, identify the exhaust information, and automatically switch the air duct according to the experimental exhaust which may be generated, so as to determine whether to send the experimental exhaust into the integrated spray tower, thereby the system can reduce the operation and maintenance costs of the exhaust treatment.
In one embodiment of the present application, experimental exhaust gas information is processed based on preset exhaust gas logic, which includes:
if the experimental exhaust gas information is identified as meeting the in-line condition, for example: the waste gas of the current experiment item is a predefined pollution-free class, and is judged to be that an electric control valve on the direct exhaust air duct is opened, the electric control valve on the air duct to be turned is closed, and a corresponding valve control instruction is output, namely, the experiment waste gas is directly discharged to the atmosphere.
If the experimental exhaust gas information is identified as not meeting the in-line condition, for example: the waste gas of the current experiment item is a predefined toxic substance, and then the first electric control valve on the direct exhaust air duct is judged to be closed, the first electric control valve on the air duct to be turned on, and a corresponding valve control instruction II and an integrated spray tower work control instruction are output, namely, the waste gas of the laboratory is sent into the integrated spray tower to be purified and then discharged, so that the pollution to the atmosphere environment and the damage to the health of other people are avoided.
Because in the actual operation of the system and the equipment, part of personnel neglect or part of personnel intentionally fill in wrong experimental item information in order to reduce the cost, and part of toxic gas is directly discharged to the atmosphere, the system is also provided with a plurality of gas sensors 4, and the gas sensors 4 are interconnected with the computer through data transmission terminals so as to transmit back gas detection data. The gas sensor 4 can be a comprehensive toxic gas sensor or a sensor corresponding to a plurality of toxic gases, and a probe of the sensor extends into the air duct.
Correspondingly, the control module 2 is arranged to:
acquiring and receiving theoretical content data of various types of waste gas allowed to be directly discharged, and recording the theoretical content data in a database;
if the content of the exhaust gas fed back by the gas sensor 4 exceeds the theoretical content data, the current experimental exhaust gas information is judged to be recognized as not meeting the direct exhaust condition.
Namely, the air duct switching of the system is determined not only according to the experimental item information uploaded by the user, but also according to the feedback decision of the gas sensor 4, and the system automatically judges whether the exhaust gas is required to be sent into the integrated spray tower for purification whether the exhaust gas is abnormal or the toxicity exceeds the standard due to negligence of the user.
For the sensor cost, regarding the above-described gas sensor 4, specifically:
two middle through openings are formed in the vortex tube 12, the two middle through openings are distributed along the length direction of the vortex tube 12, and the middle through openings are provided with an adaptive electric control valve II 5. The probe of the gas sensor 4 extends into the air channel to be turned and is positioned between the two middle through holes.
The control module is set as:
when the first electric control valve on the direct exhaust air duct is opened, and when the first electric control valve on the air duct to be turned is closed, the second electric control valve is opened; when the first electric control valve on the direct exhaust air duct is closed and the first electric control valve on the air duct to be turned is opened, the second electric control valve is closed.
That is, the gas sensor 4 is in the air channel to be turned that sends the waste gas into the integrated spray tower, if the current switching air channel of the system is directly discharged to the atmosphere, then: the second electric control valve 5 is opened to enable the waste gas to contact the gas sensor 4 in the air duct to be turned, so that the system can meet the waste gas detection requirement of the double air ducts through one group of gas sensors 4.
In one embodiment of the present system, the control module 2 is arranged to: if a certain waste gas content fed back by the gas sensor 4 exceeds theoretical content data, and the experimental waste gas information matched with the current experimental item information accords with the opening condition of the first electric control valve on the direct exhaust air duct, an experimental item/experimental waste gas content error prompt message is sent to the terminal 3.
The setting can be used for prompting a user to check an experimental link and prompting the user to update and correct the experimental project detail pre-recorded in the database in time.
Further, the control module 2 is configured to:
when the error prompt information of the experimental item/the experimental waste gas content is sent, the waste gas content fed back by the current gas sensor 4 is recorded, and error prompt feedback of the terminal 3 is received;
if the number of times of triggering the error prompt by the same experiment item information is greater than the preset correction lower limit number of times, for example: 3 times, the experimental exhaust gas information is corrected by the exhaust gas content fed back by the conventional gas sensor 4, and the correction mode can be as follows: taking the minimum value and the maximum value in the past feedback value as the exhaust gas content range corresponding to the new experimental exhaust gas information.
According to the setting, the system automatically corrects according to the history record along with one experiment even if the user does not update the database in time due to negligence, so as to prevent the air duct from being switched by mistake and pollute the atmosphere.
In one embodiment of the present system, the air duct to be turned is set as follows: is positioned at the inner side of the straight exhaust air duct. The reason is that: the toxic waste gas has corrosiveness, so the material requirement of the inner wall of the air duct to be turned is higher than that of the direct exhaust air duct, and the length and the area of the inner ring of the vortex structure are smaller, so the cost of the vortex tube 12 can be reduced by the arrangement; meanwhile, due to the arrangement of the gas sensor 4 and the electric control valve II 5, corrosive waste gas is prevented from entering the direct exhaust air duct, and the service life of the vortex tube 12 is prolonged.
The vortex tube 12 is arranged instead of the common pipeline, so that heat is collected, the condensation probability of the waste gas before entering the integrated spray tower is increased due to the arrangement of the separation device 1, and the probability of polluting and damaging the pipeline is increased.
Again, because of the characteristic nature of the vortex tube 12, it is disposed horizontally, rather than vertically, during use to avoid excessive waste liquid accumulation within the vortex tube 12.
Referring to fig. 3, in one embodiment of the present system, in order to prevent the reverse flow of the direct exhaust duct communicating with the atmosphere from affecting the exhaust gas discharge, an unpowered check valve 6 is provided in the direct exhaust duct, the unpowered check valve including a valve ring 61, a restriction block 62, a valve plate 63 and a rotation shaft 64. Wherein, the valve ring 61 is adapted to and fixed on the inner wall of the direct exhaust duct, the rotating shaft 64 is fixed on the side part of the valve plate 63 and is biased downwards, the rotating shaft 64 is rotationally connected to the valve ring 61, the limiting block 62 is fixed on the lower edge of the inner opening of the valve ring 61, and the valve plate 63 is adapted to the inner opening of the valve ring 61 and the lower end thereof is positioned on one side of the limiting block 62 away from the outlet of the direct exhaust duct.
According to the above arrangement, in general case, the upper portion of the valve plate 63 is inclined outwards and the lower portion is inclined inwards under the action of its own weight, and the valve plate is opened for exhaust gas to be discharged; when the outside air blows, the upper part of the valve plate 63 approaches the upper part of the valve ring 61 due to the size of the air receiving surface on the upper and lower parts of the rotating shaft 64, and the valve plate starts to be closed.
It will be appreciated that, in order to ensure that the valve plate 63 does not rotate excessively when the unpowered non-return valve 6 is in an open state, a stop block 65 is further fixed at the upper portion of the direct exhaust air duct, and the stop block 65 is located on a rotation path at the upper portion of the valve plate 63 to prevent the valve plate 63 from rotating in due time.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A laboratory exhaust treatment system, includes integration spray column, its characterized in that: still include separator (1), control module (2) and terminal (3), separator (1) includes:
a transfer tube (11) with one end open for communicating with the exhaust pipe of the laboratory and the other end closed;
the vortex tube (12) is provided with two mutually parallel air channels along the length direction, one air channel is called a direct discharge air channel, and the other air channel is called an air channel to be turned; the method comprises the steps of,
the valve group (13) comprises a plurality of first electric control valves which are respectively arranged at the head and tail ports of each air duct;
the inner end of the vortex tube (12) is fixed on the outer wall of the switching tube (11), the switching tube (11) is provided with side through holes which are respectively communicated with two air channels, the outlet of the direct exhaust air channel is communicated with the atmosphere, and the outlet of the air channel to be switched is communicated with the integrated spray tower;
the control module (2) is electrically connected to the first electric control valve, the terminal (3) and the integrated spray tower, and the control module (2) is arranged as follows:
acquiring and receiving experimental item information sent by a terminal (3);
searching a preset database based on the experimental item information to obtain matched experimental waste gas information;
based on the preset exhaust gas logic, experimental exhaust gas information is processed to obtain a valve control instruction and a tower control instruction, so that the direct exhaust air duct and the air duct to be turned are selectively opened, and the air duct to be turned and the integrated spray tower are linked to be opened and closed.
2. The laboratory exhaust treatment system according to claim 1, wherein the treating experimental exhaust information based on preset exhaust logic comprises:
if the experimental waste gas information is identified to be in accordance with the direct exhaust condition, judging that the first electric control valve on the direct exhaust air duct is opened, closing the first electric control valve on the air duct to be turned, and outputting a corresponding valve control instruction I;
if the experimental waste gas information is identified as not meeting the direct exhaust condition, the first electric control valve on the direct exhaust air duct is judged to be closed, the first electric control valve on the air duct to be turned is opened, and a corresponding valve control instruction II and an integrated spray tower working control instruction are output.
3. The laboratory exhaust treatment system according to claim 2, wherein: the gas sensor (4) is connected to the control module (2);
the control module (2) is arranged to:
acquiring and receiving theoretical content data of various types of waste gas allowed to be directly discharged, and recording the theoretical content data in a database;
and if the content of the certain waste gas fed back by the gas sensor (4) exceeds the theoretical content data, judging that the current experimental waste gas information is recognized as not meeting the direct exhaust condition.
4. A laboratory exhaust treatment system according to claim 3, wherein: two middle through openings are formed in the vortex tube (12), the two middle through openings are distributed along the length direction of the vortex tube (12), and an adaptive electric control valve II (5) is installed at the middle through openings;
the probe of the gas sensor (4) extends into the air channel to be turned and is positioned between the two middle through holes;
the control module (2) is arranged to:
when the first electric control valve on the direct exhaust air duct is opened, and the first electric control valve on the air duct to be turned is closed, the second electric control valve (5) is opened;
when the first electric control valve on the direct exhaust air duct is closed and the first electric control valve on the air duct to be turned is opened, the second electric control valve (5) is closed.
5. A laboratory exhaust treatment system according to claim 3, characterized in that the control module (2) is arranged to: if a certain waste gas content fed back by the gas sensor (4) exceeds theoretical content data, and experimental waste gas information matched with current experimental item information accords with the opening condition of an electric control valve I on the direct exhaust air duct, an experimental item/experimental waste gas content error prompt message is sent to the terminal (3).
6. Laboratory exhaust treatment system according to claim 5, characterized in that the control module (2) is arranged to:
when the error prompt information of the experimental item/the experimental waste gas content is sent, recording the waste gas content fed back by the current gas sensor (4), and receiving the error prompt feedback of the terminal (3);
and if the number of times of triggering error prompt by the same experiment item information is larger than the preset correction lower limit number of times, correcting the experiment exhaust gas information by the exhaust gas content fed back by the conventional gas sensor (4).
7. The laboratory exhaust treatment system according to claim 1, wherein: the air duct to be rotated is positioned at the inner side of the direct exhaust air duct, and the vortex tube (12) is horizontally arranged.
8. The laboratory exhaust treatment system according to claim 7, wherein: be provided with unpowered check valve (6) in the straight exhaust duct, unpowered check valve (6) include valve circle (61), restriction piece (62), valve block (63), pivot (64) and dog (65), the inner wall of valve circle (61) adaptation and be fixed in the straight exhaust duct, lateral part and the lower offset of valve block (63) are fixed in pivot (64), pivot (64) rotate and connect in valve circle (61), the internal orifice lower edge that restriction piece (62) were fixed in valve circle (61), the one side that the internal orifice of valve circle (61) and its lower extreme were located restriction piece (62) and deviate from straight exhaust duct export is located to valve block (63) adaptation, dog (65) are fixed in the upper portion of straight exhaust duct and are located the rotation route on valve block (63) upper portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310917433.2A CN116617819A (en) | 2023-07-25 | 2023-07-25 | Laboratory exhaust treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310917433.2A CN116617819A (en) | 2023-07-25 | 2023-07-25 | Laboratory exhaust treatment system |
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| CN116617819A true CN116617819A (en) | 2023-08-22 |
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| CN202310917433.2A Pending CN116617819A (en) | 2023-07-25 | 2023-07-25 | Laboratory exhaust treatment system |
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| CN201273388Y (en) * | 2008-09-28 | 2009-07-15 | 韩文强 | Check valve of flue gas chimney |
| CN102580513A (en) * | 2012-01-01 | 2012-07-18 | 蔡如钰 | Simulation and optimization system of flue gas desulfurization process of thermal power plant |
| CN205628866U (en) * | 2016-04-21 | 2016-10-12 | 王亚鑫 | Laboratory ventilation cabinet |
| CN216825636U (en) * | 2021-12-24 | 2022-06-28 | 保定正德电力技术有限公司 | Automatic control device of wet flue gas desulfurization system |
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Application publication date: 20230822 |