CN210863521U - Portable smoke direct-reading tester - Google Patents
Portable smoke direct-reading tester Download PDFInfo
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- CN210863521U CN210863521U CN201921676303.XU CN201921676303U CN210863521U CN 210863521 U CN210863521 U CN 210863521U CN 201921676303 U CN201921676303 U CN 201921676303U CN 210863521 U CN210863521 U CN 210863521U
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- inner box
- box
- heater
- supporting plate
- smoke
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- 239000000779 smoke Substances 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 2
- 239000000284 extract Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- TXVHTIQJNYSSKO-UHFFFAOYSA-N BeP Natural products C1=CC=C2C3=CC=CC=C3C3=CC=CC4=CC=C1C2=C34 TXVHTIQJNYSSKO-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
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- 239000005416 organic matter Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of environmental protection equipment, and discloses a portable smoke direct-reading tester, which comprises an instrument body, wherein the instrument body comprises an outer box and an inner box, a supporting plate is arranged at the bottom in the outer box, guide rods are respectively arranged on the left side and the right side of the supporting plate in a penetrating way, and the bottom end of each guide rod is fixedly connected with the bottom of the outer box; the gas extraction pump preheats the collected gas through the heating cylinder, the heater further gasifies the collected gas, the smoke sensor continuously emits laser to the detector, the gas extraction pump continuously extracts gas to form a negative pressure environment in the measuring chamber, and the detector transmits the received laser back to the smoke sensor to measure the concentration value of dust in smoke; connect outer container and inner box through coupling mechanism, when the device received external impact simultaneously, played the purpose of protection inner box, the handle is convenient for take the device, removes the wheel and is convenient for remove, the device simple structure, portable, convenient to use, measurement accuracy is high.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field specifically is portable smoke and dust direct-reading tester.
Background
Due to the solid particles contained in the large amount of exhaust gas generated during the combustion process of a coal-fired boiler, the solid particles formed suspended in the gas are called soot. The smoke dust belongs to granular pollutants and can be divided into dust fall and floating dust according to the particle size. The particle size of the dustfall is larger than 10 microns, and the dustfall can naturally fall by the self weight of the dustfall. The dust reduction amount per unit area can be used as an index for evaluating the atmospheric pollution degree; the particle size of the floating dust is less than 10 microns, the particles are small and light, and the floating dust can float in the atmosphere for a long time. The floating range is from several kilometers to several tens of kilometers. It will accumulate in the atmosphere and the pollution level will increase gradually. Fly ash is complex in composition, including inorganic and organic. The inorganic substances include asbestos, silicon dioxide, metal substances (mercury, lead, chromium, cadmium, manganese, iron, etc.) and compounds thereof. The organic matter includes various hydrocarbons, especially hydrocarbons such as polycyclic aromatic hydrocarbons. The floating dust has hygroscopicity, can easily absorb moisture in the atmosphere to form condensed nuclei with strong adsorbability on the surface, and can adsorb harmful gas, various metal dusts discharged by high-temperature smelting, benzo (a) pyrene with strong carcinogenicity and the like. Some fly ash particles also have catalytic action on the surface, for example, ferric oxide discharged from steel and iron works can catalyze sulfur dioxide on the surface of the fly ash particles to form sulfur trioxide, and absorb water to form sulfuric acid. This effect on the fly ash surface tends to increase its toxicity. Therefore, environmental monitoring and the department of health use it as an important index for evaluating the influence of atmospheric pollution on health.
Environmental protection departments often need to measure smoke and dust in the smoke emission of a certain occasion to detect whether the emission value is qualified. The existing portable smoke direct-reading tester is not high in precision during testing, and can not be carried only through online measurement due to the fact that the portable smoke direct-reading tester is large in size and multiple in split type structure.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a portable smoke and dust direct-reading tester has solved the problem that above-mentioned background art provided.
The utility model provides a following technical scheme: a portable smoke direct-reading tester comprises an instrument body, wherein the instrument body comprises an outer box and an inner box, a supporting plate is arranged at the bottom in the outer box, guide rods are respectively arranged on the left side and the right side of the supporting plate in a penetrating manner, the bottom end of each guide rod is fixedly connected with the bottom of the outer box, a first spring is sleeved outside the guide rods and below the supporting plate, the inner box is fixedly arranged on the upper surface of the supporting plate, a heating cylinder is fixedly arranged at the top of the inner wall of the inner box, an air inlet pipe is arranged at the left end of the heating cylinder, a probe is arranged at the right end of the heating cylinder, the probe penetrates through the inner box and the outer box and extends to the outside, a heater is connected to the other end of the air inlet pipe, the heater is arranged below the heating cylinder, a connecting pipe is arranged at the right end of the heater, the smoke and dust sensor is fixed set up in the left side wall of inner box, the measuring chamber set up in the below of heater, the fixed detector that is provided with of measuring chamber inside right-hand member, the inside temperature controller that is provided with of connecting pipe, measuring chamber left side below is provided with the rubber tube, the rubber tube other end is provided with the filter, the filter fixed set up in inner box bottom portion, measuring chamber right side below is provided with the outlet duct, the outlet duct other end is connected with the aspiration pump, the aspiration pump fixed set up in inner box right side below, the fixed controller that is provided with in inner box left side below.
Preferably, the front and the back of the heater are fixedly connected with the front and the back of the inner box.
Preferably, the controller is respectively and electrically connected with the heating cylinder, the heater, the smoke sensor, the detector, the temperature controller, the filter and the air pump.
Preferably, a plurality of support rods are fixedly arranged at the bottom of the support plate, the support rods are telescopic rods, and second springs are sleeved outside the support rods.
Preferably, the inner box left and right sides wall with a plurality of coupling mechanisms are fixedly provided with between the outer container inner wall, coupling mechanism including fixed set up in the loop bar of outer container inner wall, the inside fixed third spring that is provided with of loop bar, third spring other end fixedly connected with limiting plate, the limiting plate is kept away from the fixed interior pole that is provided with in one side of third spring, the interior pole other end with inner box outer wall fixed connection.
Preferably, the handle is fixedly arranged at the top of the outer box, the display operation panel is arranged on the front face of the outer box and electrically connected with the controller, and the moving wheel is fixedly arranged at the bottom of the outer box.
The utility model discloses possess following beneficial effect:
1. the portable smoke direct-reading tester comprises an air suction pump, a heater, a smoke sensor, a filter, a gas inlet pipe, a gas outlet pipe, a detector, a gas outlet pipe, a smoke sensor, a gas outlet pipe, if the gas temperature is too high, the operation of the heater is stopped.
2. This portable smoke and dust direct-reading tester connects outer container and inner box through coupling mechanism, and when the device received external impact simultaneously, through mutually supporting of loop bar, third spring, limiting plate and interior pole, played the purpose of protection inner box, the handle is convenient for take the device, and the removal wheel is convenient for remove.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic view of the structure of the connection mechanism of the present invention.
In the figure: 1. an outer box; 2. an inner box; 3. a support plate; 4. a guide bar; 5. a first spring; 6. a heating cylinder; 7. an air inlet pipe; 8. a probe; 9. a heater; 10. a connecting pipe; 11. a measurement chamber; 12. a smoke sensor; 13. a detector; 14. a temperature controller; 15. a rubber tube; 16. a filter; 17. an air outlet pipe; 18. an air pump; 19. a controller; 20. a support bar; 21. a second spring; 22. a connecting mechanism; 221. a loop bar; 222. a third spring; 223. a limiting plate; 224. an inner rod; 23. a handle; 24. a display operation panel; 25. the wheel is moved.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a portable smoke direct-reading tester comprises an instrument body, the instrument body comprises an outer box 1 and an inner box 2, a supporting plate 3 is arranged at the bottom inside the outer box 1, guide rods 4 are respectively arranged at the left side and the right side of the supporting plate 3 in a penetrating manner, the bottom ends of the guide rods 4 are fixedly connected with the bottom of the outer box 1, a first spring 5 is sleeved outside the guide rods 4 and below the supporting plate 3, the inner box 2 is fixedly arranged on the upper surface of the supporting plate 3, a heating cylinder 6 is fixedly arranged at the top of the inner wall of the inner box 2, an air inlet pipe 7 is arranged at the left end of the heating cylinder 6, a probe 8 is arranged at the right end of the heating cylinder 6, the probe 8 penetrates through the inner box 2 and the outer box 1 and extends to the outside, a heater 9 is connected to the other end of the air inlet pipe 7, the heater 9 is arranged below the heating cylinder 6, smoke and dust sensor 12 is fixed to be set up in the left side wall of inner box 2, measuring chamber 11 sets up in the below of heater 9, the fixed detector 13 that is provided with of the inside right-hand member of measuring chamber 11, the inside temperature controller 14 that is provided with of connecting pipe 10, measuring chamber 11 left side below is provided with rubber tube 15, the rubber tube 15 other end is provided with filter 16, filter 16 is fixed to be set up in inner box 2 bottom, measuring chamber 11 right side below is provided with outlet duct 17, the outlet duct 17 other end is connected with aspiration pump 18, aspiration pump 18 is fixed to be set up in inner box 2 right side below, inner box 2 left side below is fixed and is.
Wherein, the front and the back of the heater 9 are fixedly connected with the front and the back of the inner box 2 through bolts, so that the heater 9 is conveniently fixed in the inner box 2.
The controller 19 is electrically connected with the heating cylinder 6, the heater 9, the smoke sensor 12, the detector 13, the temperature controller 14, the filter 16 and the air pump 18 respectively, and the operation of the whole device is controlled by the controller 19.
Wherein, the fixed a plurality of bracing pieces 20 that are provided with in backup pad 3 bottom, bracing piece 20 establish to the telescopic link, and the outside cover of bracing piece 20 is equipped with second spring 21, is convenient for support backup pad 3, still plays absorbing effect simultaneously, increases the device's life.
Wherein, fixed a plurality of coupling mechanism 22 that are provided with between 2 left and right sides walls of inner box and the 1 inner wall of outer container, coupling mechanism 22 is including fixed loop bar 221 that sets up in 1 inner wall of outer container, the inside fixed third spring 222 that is provided with of loop bar 221, third spring 222 other end fixedly connected with limiting plate 223, one side that third spring 222 was kept away from to limiting plate 223 is fixed and is provided with interior pole 224, the interior pole 224 other end and 2 outer wall fixed connection of inner box, connect outer container 1 and inner box 2 through coupling mechanism 22, when the device received external force striking simultaneously, through loop bar 221, third spring 222, limiting plate 223 and interior pole 224 mutually support, play the purpose of protection inner box 2.
Wherein, the fixed handle 23 that is provided with in outer container 1 top, the device of being convenient for take, outer container 1 openly are provided with display operation panel 24, display operation panel 24 and 19 electric connection of controller operate the device through display operation panel 24, and outer container 1 bottom is fixed to be provided with removes wheel 25, the removal of being convenient for.
When in use, the probe 8 is put in a place with gas collection to collect gas, the air pump 18 is started, the collected gas is preheated by the heating cylinder 6 to remove moisture, then enters the heater 9 through the air inlet pipe 7, the heater 9 further gasifies the collected air to heat and remove the residual moisture, the smoke sensor 12 continuously emits laser to the detector 13, the air pump 18 continuously pumps air to form a negative pressure environment in the measuring chamber 11, the gas entering the measuring chamber 11 from the connecting pipe 10 is continuously exhausted from the air outlet pipe 17 through the laser measuring line under the action of negative pressure, the laser measuring line passes through the gas to generate diffuse reflection, the detector 13 transmits the received laser back to the smoke sensor 12 to measure the concentration value of dust in smoke, the measuring chamber 11 is connected with the filter 16 through the rubber pipe 15 and is used for blowing filtered clean gas into the measuring chamber 11, purging smoke dust on the optical lens in the measuring chamber 11, monitoring the temperature of gas passing through the heater 9 in real time by a temperature controller 14 in the connecting pipe 10, and stopping the heater 9 if the temperature of the gas is too high; connect outer container 1 and inner box 2 through coupling mechanism 22, when the device receives external force striking simultaneously, through the loop bar 221, third spring 222, limiting plate 223 and interior pole 224 mutually support, play the purpose of protection inner box 2, handle 23 is convenient for take the device, and removal wheel 25 is convenient for remove.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Portable smoke and dust direct-reading tester, including the instrument body, its characterized in that: the instrument body comprises an outer box (1) and an inner box (2), a supporting plate (3) is arranged at the bottom in the outer box (1), guide rods (4) are respectively arranged on the left side and the right side of the supporting plate (3) in a penetrating manner, the bottom end of each guide rod (4) is fixedly connected with the bottom of the outer box (1), a first spring (5) is sleeved outside the guide rods (4) and positioned below the supporting plate (3), the inner box (2) is fixedly arranged on the upper surface of the supporting plate (3), a heating cylinder (6) is fixedly arranged on the top of the inner wall of the inner box (2), an air inlet pipe (7) is arranged at the left end of the heating cylinder (6), a probe (8) is arranged at the right end of the heating cylinder (6), the probe (8) penetrates through the inner box (2) and the outer box (1) and extends to the outside, and a heater (9) is connected, the heater (9) is arranged below the heating cylinder (6), a connecting pipe (10) is arranged at the right end of the heater (9), the other end of the connecting pipe (10) is connected with a measuring chamber (11), a smoke sensor (12) is fixedly connected at the left end of the measuring chamber (11), the smoke sensor (12) is fixedly arranged on the left side wall of the inner box (2), the measuring chamber (11) is arranged below the heater (9), a detector (13) is fixedly arranged at the right end inside the measuring chamber (11), a temperature controller (14) is arranged inside the connecting pipe (10), a rubber pipe (15) is arranged at the lower left side of the measuring chamber (11), a filter (16) is arranged at the other end of the rubber pipe (15), the filter (16) is fixedly arranged at the bottom of the inner box (2), and an air outlet pipe (17) is arranged at the lower right side of the measuring chamber (11), the other end of the air outlet pipe (17) is connected with an air pump (18), the air pump (18) is fixedly arranged at the right lower part of the inner box (2), and a controller (19) is fixedly arranged at the left lower part of the inner box (2).
2. The portable smoke direct-reading tester according to claim 1, wherein: the front and the back of the heater (9) are fixedly connected with the front and the back of the inner box (2).
3. The portable smoke direct-reading tester according to claim 1, wherein: the controller (19) is respectively and electrically connected with the heating cylinder (6), the heater (9), the smoke sensor (12), the detector (13), the temperature controller (14), the filter (16) and the air pump (18).
4. The portable smoke direct-reading tester according to claim 1, wherein: the supporting plate is characterized in that a plurality of supporting rods (20) are fixedly arranged at the bottom of the supporting plate (3), the supporting rods (20) are arranged to be telescopic rods, and second springs (21) are sleeved outside the supporting rods (20).
5. The portable smoke direct-reading tester according to claim 1, wherein: inner box (2) left and right sides wall with fixed a plurality of coupling mechanism (22) of being provided with between outer container (1) inner wall, coupling mechanism (22) including fixed set up in loop bar (221) of outer container (1) inner wall, loop bar (221) inside fixed third spring (222) that is provided with, third spring (222) other end fixedly connected with limiting plate (223), keeping away from limiting plate (223) one side of third spring (222) is fixed to be provided with interior pole (224), interior pole (224) other end with inner box (2) outer wall fixed connection.
6. The portable smoke direct-reading tester according to claim 1, wherein: the outer container (1) top is fixed and is provided with handle (23), outer container (1) openly is provided with display operation panel (24), display operation panel (24) with controller (19) electric connection, outer container (1) bottom is fixed and is provided with removal wheel (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676303.XU CN210863521U (en) | 2019-10-09 | 2019-10-09 | Portable smoke direct-reading tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676303.XU CN210863521U (en) | 2019-10-09 | 2019-10-09 | Portable smoke direct-reading tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863521U true CN210863521U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921676303.XU Expired - Fee Related CN210863521U (en) | 2019-10-09 | 2019-10-09 | Portable smoke direct-reading tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210863521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254153A (en) * | 2020-09-30 | 2021-01-22 | 安徽军航环保设备制造有限公司 | Smoke emission concentration alarm system for waste incineration vehicle |
| CN112881596A (en) * | 2021-01-11 | 2021-06-01 | 重庆工程职业技术学院 | Mine gas concentration monitoring device and method |
-
2019
- 2019-10-09 CN CN201921676303.XU patent/CN210863521U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254153A (en) * | 2020-09-30 | 2021-01-22 | 安徽军航环保设备制造有限公司 | Smoke emission concentration alarm system for waste incineration vehicle |
| CN112254153B (en) * | 2020-09-30 | 2023-09-15 | 安徽军航环保设备制造有限公司 | A smoke emission concentration alarm system for garbage truck |
| CN112881596A (en) * | 2021-01-11 | 2021-06-01 | 重庆工程职业技术学院 | Mine gas concentration monitoring device and method |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 |