CN111896335A - Integrated smoke dust sampling method - Google Patents
Integrated smoke dust sampling method Download PDFInfo
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- CN111896335A CN111896335A CN202010774002.1A CN202010774002A CN111896335A CN 111896335 A CN111896335 A CN 111896335A CN 202010774002 A CN202010774002 A CN 202010774002A CN 111896335 A CN111896335 A CN 111896335A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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Abstract
The invention relates to a smoke and dust integrated sampling method, which comprises the following steps: s1, replacing a new sampling nozzle by rotating the connecting seat and the connecting cover; replacing the filter cartridge with a new filter cartridge by rotating the connection cap and the sample cartridge; s2, by starting the electric telescopic rod main body, the fixing column is lifted, the left end of the sampling gun rod extends into the flue, and the nozzle is arranged in the direction facing the airflow. According to the invention, the nozzle head is arranged to be narrow at the bottom and wide at the top, so that smoke dust cannot be blocked after entering the nozzle head, and the sampling failure caused by dust blockage of the sampling nozzle can be effectively avoided; the sampling device can automatically reach the flue sampling port by using the electric telescopic rod main body, manual lifting is not needed, labor force is reduced, and labor cost is saved; the heating box is used for heating the high-temperature clean air flow for the sampling pipe, so that the high-temperature sampling air flow containing moisture can not generate condensate water due to low temperature of the sampling pipe, the weight of the filtered smoke dust is changed, the sampling result is influenced, and the accuracy and the reliability of the sampling result are ensured.
Description
Technical Field
The invention relates to the technical field of smoke dust sampling, in particular to a smoke dust integrated sampling method.
Background
In the field of environmental monitoring, smoke and dust and flue gas sampling detection is required for fixed pollution sources such as a flue. In the sampling process, because flue site sampling platform's environmental condition is abominable, will be for a long time the manual operation smoke and dust sampling pipe remains motionless, the operation process is very painstaking, and when carrying out the smoke and dust sampling, because of the sampling rifle is longer, the inside high temperature moisture of smoke and dust condenses into the water droplet very easily, when a large amount of water droplets gather in the sampling rifle, part water droplet can carry impurity adhesion to smoke and dust sampling device and strain a section of thick bamboo, it strains a section of thick bamboo to pollute the sampling, and make and strain a section of thick bamboo and wet, lead to the heavy emergence of the smoke and dust sample of gathering in a section of thick bamboo to change, make the sampling result unusual, directly.
Disclosure of Invention
The invention aims to provide an integrated smoke dust sampling method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a smoke and dust integrated sampling method comprises the following steps:
s1, replacing a new sampling nozzle by rotating the connecting seat and the connecting cover; replacing the filter cartridge with a new filter cartridge by rotating the connection cap and the sample cartridge;
s2, the fixing column is lifted by starting the electric telescopic rod main body, the left end of the sampling gun rod extends into the flue, and the nozzle is arranged in the direction facing the airflow;
s3, opening a one-way valve on the air inlet pipe, simultaneously starting a heating net and an air pump, heating the heated clean air flow to a sampling pipe, keeping heating for two minutes, starting a vacuum pump to enable a sampling nozzle to start air inlet, enabling the smoke air flow containing moisture to pass through the high-temperature sampling pipe, then filtering the smoke air flow through a filter cylinder in the sampling box, enabling the contained dust to be retained in the sampling box through the filter cylinder and a stop ring, and enabling the residual high-temperature air to flow into a heat exchange box through an air outlet pipe;
s4, enabling the high-temperature clean air flow heated by the heating net to flow into the sampling gun rod through the heating pipe, enabling the cooled low-temperature clean air flow to enter the heat exchange box through the air return pipe to exchange heat with the high-temperature air flow in the air outlet pipe, enabling the cooled low-temperature clean air flow to flow back into the heating box through the air recovery pipe, and recycling the cooled low-temperature clean air flow;
s5, after the test is finished, collecting data of smoke dust and a micro-pressure sensor in the sampling box and accumulated gas production of a vacuum pump, and obtaining average smoke dust concentration in the test period;
the smoke and dust integrated sampling device adopted by the smoke and dust integrated sampling method comprises a flue and an electric telescopic rod main body, the bottom surface of the electric telescopic rod main body is contacted with the ground, the top surface of the output end of the electric telescopic rod main body is fixedly connected with the bottom surface of a fixed column, a sampling box and a heat exchange box are arranged on the left side and the right side of the fixed column, the right side surface of the sampling box is fixedly connected with the left side surface of the fixed column, a sampling gun rod is horizontally arranged on the left side of the sampling box, the sampling gun rod is internally and hollow, the right end surface of the sampling gun rod is fixedly connected with the right side surface of the sampling box, the left end of the sampling gun rod penetrates through the flue and extends into the flue, a sampling tube is horizontally arranged in the sampling gun rod, the left end of the sampling tube penetrates through the sampling, the sampling box is provided with an opening at the top, the inner wall of the sampling box is fixedly connected with the surface of a supporting ring, a filter cartridge is vertically arranged in the sampling box, the side surface of the filter cartridge is contacted with the inner wall of the supporting ring, the top end of the sampling box is provided with a connecting cover, the surface of the connecting cover is in threaded connection with the inner wall of the sampling box, a sealing ring is arranged between the bottom surface of the connecting cover and the top surface of the filter cartridge, the top surface of the connecting cover is in through connection with an air outlet pipe, the top surface of a sampling gun rod is fixedly connected with the bottom surface of a heating box, a heating net and a baffle are horizontally arranged in the heating box from top to bottom in sequence, the side surface of the heating net and the side surface of the baffle are fixedly connected with the inner wall of the heating box, the bottom surface of the heating box is fixedly connected with the, the bottom surface of the sampling gun rod is fixedly connected with the top surface of the micro-pressure sensor, a pitot tube is arranged on the left side of the micro-pressure sensor, the left side surface of the heat exchange box is fixedly connected with the right side surface of the fixed column, the other end of the air outlet pipe penetrates through the top surface of the heat exchange box and the right side surface of the heat exchange box from top to bottom and extends to the right side of the heat exchange box, a vacuum pump is connected, the left side surface of the vacuum pump is fixedly installed on the right side surface of the; sampling pipe left end through connection has half shroud two, the outside fixed cover of half shroud is equipped with the connection lid, sampling mouth right-hand member through connection has half shroud one, the fixed cover in half shroud outside is equipped with the connecting seat, connecting seat surface and connection lid inner wall threaded connection, the sampling mouth left end is provided with the mouth head, the narrow wide setting of going up under the mouth head, connect lid bottom surface and dead lever top surface fixed connection, dead lever bottom surface and pitot tube top surface fixed connection.
Preferably, the air inlet pipe is provided with a one-way valve; the heating pipe other end and sampling rifle bar top surface through connection, sampling rifle bar bottom surface through connection has the muffler, the muffler other end and heat transfer case right flank through connection.
Preferably, the air outlet pipe is positioned in the heat exchange box and is spirally arranged; the sampling box is characterized in that a stop ring is arranged inside the sampling box, the stop ring is narrow at the top and wide at the bottom, the surface of the stop ring is fixedly connected with the inner wall of the sampling box, and the stop ring is arranged up and down in four directions.
Preferably, the heating temperature of the heating net is not lower than 180 ℃, the air exhaust flow of the vacuum pump is not less than 50L/min, and the negative pressure is not less than-35 kpa.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the smoke and dust integrated sampling method, the mouth head is arranged to be narrow at the bottom and wide at the top, so that smoke and dust cannot be blocked after entering, and sampling failure caused by dust blockage of the sampling mouth can be effectively avoided.
2. Make sampling device can reach the flue sample connection automatically through using the electric telescopic handle main part, need not artifical the lift, reduce the labour, practice thrift the cost of labor.
3. The heating box is used for heating the high-temperature clean air flow for the sampling pipe, so that the high-temperature sampling air flow containing moisture can not generate condensate water due to low temperature of the sampling pipe, the weight of the filtered smoke dust is changed, the sampling result is influenced, and the accuracy and the reliability of the sampling result are ensured.
4. Through being provided with heat exchange box with the mutual heat transfer of high temperature sampling air current and the clean air current of low temperature, improve the reflux temperature of clean air current, make heating network heating power reduce, increase the resource utilization degree, reach energy-conserving effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view of a sampling tube according to the present invention;
FIG. 3 is a cross-sectional view of a sampling gun barrel and a sampling cartridge of the present invention;
FIG. 4 is a cross-sectional view of a heat exchange box of the present invention;
FIG. 5 is an enlarged view of the area of FIG. 3A according to the present invention;
FIG. 6 is an enlarged view of the area of FIG. 3B according to the present invention.
In the figure: 1 flue, 2 electric telescopic rod main parts, 3 fixed columns, 4 heat exchange boxes, 5 sampling boxes, 6 sampling gun rods, 7 heating boxes, 8 micro-pressure sensors, 9 sampling nozzles, 10 sampling pipes, 11 nozzle heads, 12 half-round cover I, 13 half-round cover II, 14 connecting covers, 15 connecting seats, 16 fixing rods, 17 pitot tubes, 18 air inlet pipes, 19 heating nets, 20 partition plates, 21 air pumps, 22 heating pipes, 23 air receiving pipes, 24 air return pipes, 25 support rings, 26 filter cylinders, 27 connecting covers, 28 sealing rings, 29 blocking rings, 30 air outlet pipes and 31 vacuum pumps.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a smoke and dust integrated sampling method comprises the following steps:
s1, replacing the new sampling nozzle 9 by rotating the connecting seat 15 and the connecting cover 14; replacement of a new filter cartridge 26 is achieved by rotating the coupling cap 27 and the cartridge 5.
S2, starting the electric telescopic rod main body 2, enabling the fixing column 3 to ascend, enabling the left end of the sampling gun rod 6 to extend into the flue 1, and enabling the nozzle 11 to be arranged in the direction facing the airflow.
S3, opening a one-way valve on the air inlet pipe 18, simultaneously starting the heating net 19 and the air pump 21, enabling the heated clean air flow to be subjected to heating treatment on the sampling pipe 10, enabling the heating temperature of the heating net 19 to be not lower than 180 ℃, starting the vacuum pump 31 to enable the sampling nozzle 9 to start air inlet after keeping heating operation for two minutes, enabling the air exhaust flow of the vacuum pump 31 to be not less than 50L/min and the negative pressure to be not less than-35 kpa, enabling the smoke air flow containing moisture to pass through the sampling pipe 10 with high temperature, then filtering through the filter cylinder 26 in the sampling box 5, enabling the contained dust to be retained in the sampling box 5 through the filter cylinder 26 and the blocking ring 29, and enabling the residual high-temperature air to flow into the heat exchange box 4 through the.
S4, enabling the high-temperature clean air flow heated by the heating net 19 to flow into the sampling gun rod 6 through the heating pipe 22, enabling the cooled low-temperature clean air flow to enter the heat exchange box 4 through the air return pipe 24 to exchange heat with the high-temperature air flow in the air outlet pipe 30, and enabling the cooled low-temperature clean air flow to flow back to the heating box 7 through the air return pipe 23 for recycling.
And S5, after the test is finished, collecting the data of the smoke and the micro-pressure sensor 8 in the sampling box 5 and the accumulated gas production of the vacuum pump 31, and obtaining the average smoke concentration during the test.
The smoke and dust integrated sampling device adopted by the smoke and dust integrated sampling method comprises a flue 1 and an electric telescopic rod main body 2, the bottom surface of the electric telescopic rod main body 2 is contacted with the ground, the sampling device can automatically reach a sampling port of the flue 1 by using the electric telescopic rod main body 2, manual lifting is not needed, labor force is reduced, labor cost is saved, the top surface of the output end of the electric telescopic rod main body 2 is fixedly connected with the bottom surface of a fixed column 3, a sampling box 5 and a heat exchange box 4 are arranged on the left side and the right side of the fixed column 3, the right side surface of the sampling box 5 is fixedly connected with the left side surface of the fixed column 3, a sampling gun rod 6 is horizontally arranged on the left side of the sampling box 5, the sampling gun rod 6 is hollow, the right side surface of the sampling gun rod 6 is fixedly connected with the right side surface of the sampling, the left end of a sampling tube 10 penetrates through a sampling gun rod 6 to be connected with a sampling nozzle 9, the left end of the sampling tube 10 is connected with a second half-round cover 13 in a penetrating way, the outer part of the second half-round cover 13 is fixedly sleeved with a connecting cover 14, the right end of the sampling nozzle 9 is connected with a first half-round cover 12 in a penetrating way, the outer part of the first half-round cover 12 is fixedly sleeved with a connecting seat 15, the surface of the connecting seat 15 is in threaded connection with the inner wall of the connecting cover 14, the left end of the sampling nozzle 9 is provided with a nozzle head 11, the nozzle head 11 is arranged to be narrow at the lower part and wide at the upper part, the bottom surface of the connecting cover 14 is fixedly connected with the top surface of a fixed rod 16, and the bottom surface of a pitot tube 17, the integrated sampling method for smoke dust sampling can effectively avoid the sampling operation failure caused by the dust blockage of the sampling nozzle 9, the top opening of the sampling box 5 is arranged, a stop ring 29 is arranged in the sampling box 5, the stop ring 29 is narrow at the top and wide at the bottom, the surface of the stop ring 29 is fixedly connected with the inner wall of the sampling box 5, four stop rings 29 are arranged up and down, the inner wall of the sampling box 5 is fixedly connected with the surface of the support ring 25, a filter cartridge 26 is vertically arranged in the sampling box 5, the side surface of the filter cartridge 26 is contacted with the inner wall of the support ring 25, the top end of the sampling box 5 is provided with a connecting cover 27, the surface of the connecting cover 27 is in threaded connection with the inner wall of the sampling box 5, a sealing ring 28 is arranged between the bottom surface of the connecting cover 27 and the top surface of the filter cartridge 26, the top surface of the connecting cover 27 is communicated with an air outlet pipe 30, the top surface of a sampling gun rod 6 is fixedly connected with the bottom surface of a heating box 7, the heating net 19 and a, the air suction end of an air pump 21 is communicated with the top surface of a partition plate 20, the top surface of a heating box 7 is communicated with an air inlet pipe 18 and an air collecting pipe 23, the air inlet pipe 18 is provided with a one-way valve, the left side surface of the heating box 7 is communicated with a heating pipe 22, the other end of the heating pipe 22 is communicated with the top surface of a sampling gun rod 6, the bottom surface of the sampling gun rod 6 is communicated with an air return pipe 24, the other end of the air return pipe 24 is communicated with the right side surface of a heat exchange box 4, the heating box 7 is used for heating high-temperature clean air flow to a sampling pipe 10, so that the high-temperature sampling air flow containing moisture can not generate condensate water due to low temperature of the sampling pipe 10, the weight of filtered smoke dust is changed, the sampling result is influenced, the accuracy and the reliability of the sampling result are ensured, the bottom surface of the sampling gun rod 6 is fixedly connected with, the other end of outlet duct 30 runs through from last to down 4 top surfaces of heat transfer case and 4 right flanks of heat transfer case and extends to 4 right sides of heat transfer case and is connected with vacuum pump 31, outlet duct 30 is located the inside spiral setting of heat transfer case 4, vacuum pump 31 left flank fixed mounting is in 4 right flanks of heat transfer case, receive 23 other ends of trachea and 4 top surfaces through connection of heat transfer case, through being provided with heat transfer case 4 with the mutual heat transfer of high temperature sampling air current and the clean air current of low temperature, improve the backward flow temperature of clean air current, make the 19 heating power of heating network reduce, increase the resource availability, reach energy-conserving.
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 (4)
1. A smoke and dust integrated sampling method is characterized in that: the method comprises the following steps:
s1, replacing the new sampling nozzle (9) by rotating the connecting seat (15) and the connecting cover (14); replacing the filter cartridge (26) with a new one by rotating the connection cap (27) and the cartridge (5);
s2, the electric telescopic rod main body (2) is started, the fixing column (3) is lifted, the left end of the sampling gun rod (6) extends into the flue (1), and the nozzle head (11) is arranged in the direction facing the airflow;
s3, opening a one-way valve on an air inlet pipe (18), simultaneously starting a heating net (19) and an air pump (21), heating the heated clean air flow for a sampling pipe (10), keeping heating for two minutes, starting a vacuum pump (31) to enable a sampling nozzle (9) to start air inlet, enabling the smoke air flow containing moisture to pass through the high-temperature sampling pipe (10), then filtering the smoke air flow through a filter cartridge (26) in a sampling box (5), enabling the contained dust to be retained in the sampling box (5) through the filter cartridge (26) and a blocking ring (29), and enabling the residual high-temperature air to flow into a heat exchange box (4) through an air outlet pipe (30);
s4, enabling the high-temperature clean air flow heated by the heating net (19) to flow into the sampling gun rod (6) through the heating pipe (22), enabling the cooled low-temperature clean air flow to enter the heat exchange box (4) through the air return pipe (24) to exchange heat with the high-temperature air flow in the air outlet pipe (30), and enabling the cooled low-temperature clean air flow to flow back to the heating box (7) through the air return pipe (23) for recycling;
s5, after the test is finished, collecting data of smoke dust and a micro-pressure sensor (8) in the sampling box (5) and accumulated gas production of a vacuum pump (31), and obtaining average smoke dust concentration in the test period;
the smoke and dust integrated sampling device adopted by the smoke and dust integrated sampling method comprises a flue (1) and an electric telescopic rod main body (2), the bottom surface of the electric telescopic rod main body (2) is in contact with the ground, the top surface of the output end of the electric telescopic rod main body (2) is fixedly connected with the bottom surface of a fixed column (3), sampling boxes (5) and heat exchange boxes (4) are arranged on the left and right sides of the fixed column (3), the right side surface of each sampling box (5) is fixedly connected with the left side surface of the fixed column (3), a sampling gun rod (6) is horizontally arranged on the left side of each sampling box (5), the sampling gun rod (6) is arranged in a hollow manner, the right end surface of the sampling gun rod (6) is fixedly connected with the right side surface of the sampling box (5), the left end of the sampling gun rod (6) penetrates through the flue (1) and extends into the flue (1), the sampling device is characterized in that the left end of the sampling tube (10) penetrates through the sampling gun rod (6) to be connected with a sampling nozzle (9), the right end of the sampling tube (10) penetrates through the sampling gun rod (6) and the left side surface of the sampling box (5) to be connected with the inside of the sampling box (5) in a penetrating way, the top opening of the sampling box (5) is arranged, the inner wall of the sampling box (5) is fixedly connected with the surface of the backing ring (25), a filter cylinder (26) is vertically arranged inside the sampling box (5), the side surface of the filter cylinder (26) is contacted with the inner wall of the backing ring (25), the top end of the sampling box (5) is provided with a connecting cover (27), the surface of the connecting cover (27) is in threaded connection with the inner wall of the sampling box (5), a sealing ring (28) is arranged between the bottom surface of the connecting cover (27) and the top surface of the filter cylinder (26), the top surface of the connecting, heating cabinet (7) is inside from last to having set gradually down heating net (19) and baffle (20) to level, heating net (19) side and baffle (20) side and heating cabinet (7) inner wall fixed connection, heating cabinet (7) inside bottom surface and air pump (21) bottom surface fixed connection, air pump (21) end of breathing in and baffle (20) top surface through connection, heating cabinet (7) top surface through connection has intake pipe (18) and receipts trachea (23), heating cabinet (7) left side through connection has heating pipe (22), sampling barral of a gun (6) bottom surface and micropressure sensor (8) top surface fixed connection, micropressure sensor (8) left side is provided with pitot tube (17), heat transfer cabinet (4) left surface and fixed column (3) right flank fixed connection, outlet duct (30) other end extends to heat transfer cabinet (4) top surface and heat transfer cabinet (4) right flank from last to running through heat transfer cabinet (4) top surface and heat transfer cabinet (4) right flank to and connects on the right side The vacuum pump (31) is arranged, the left side surface of the vacuum pump (31) is fixedly arranged on the right side surface of the heat exchange box (4), and the other end of the air collecting pipe (23) is communicated with the top surface of the heat exchange box (4); sampling pipe (10) left end through connection has half shroud two (13), the fixed cover of half shroud two (13) outside is equipped with connects lid (14), sampling mouth (9) right-hand member through connection has half shroud one (12), the fixed cover of half shroud one (12) outside is equipped with connecting seat (15), connecting seat (15) surface and connection lid (14) inner wall threaded connection, sampling mouth (9) left end is provided with mouth head (11), the narrow wide setting of going up under mouth head (11), connect lid (14) bottom surface and dead lever (16) top surface fixed connection, dead lever (16) bottom surface and pitot tube (17) top surface fixed connection.
2. The integrated smoke dust sampling method according to claim 1, wherein: the air inlet pipe (18) is provided with a one-way valve; the heating pipe (22) other end and sampling barral of a gun (6) top surface through connection, sampling barral of a gun (6) bottom surface through connection has muffler (24), muffler (24) other end and heat transfer case (4) right flank through connection.
3. The integrated smoke dust sampling method according to claim 1, wherein: the air outlet pipe (30) is positioned in the heat exchange box (4) and is spirally arranged; sampling box (5) inside is provided with stop ring (29), narrow width down on stop ring (29), stop ring (29) surface and sampling box (5) inner wall fixed connection, stop ring (29) have four and set up from top to bottom.
4. The integrated smoke dust sampling method according to claim 1, wherein: the heating temperature of the heating net (19) is not lower than 180 ℃, the air exhaust flow of the vacuum pump (31) is not less than 50L/min, and the negative pressure is not less than-35 kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774002.1A CN111896335A (en) | 2020-08-04 | 2020-08-04 | Integrated smoke dust sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774002.1A CN111896335A (en) | 2020-08-04 | 2020-08-04 | Integrated smoke dust sampling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111896335A true CN111896335A (en) | 2020-11-06 |
Family
ID=73245428
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010774002.1A Withdrawn CN111896335A (en) | 2020-08-04 | 2020-08-04 | Integrated smoke dust sampling method |
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| CN (1) | CN111896335A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062612A (en) * | 2021-11-19 | 2022-02-18 | 贵州电网有限责任公司 | Gaseous detection device of portable SF6 |
| CN114396984A (en) * | 2022-01-19 | 2022-04-26 | 成都秦川物联网科技股份有限公司 | Step-by-step operation type energy metering device with built-in gateway and Internet of things system |
| CN115745203A (en) * | 2022-12-05 | 2023-03-07 | 中国水产科学研究院珠江水产研究所 | Fishery resource monitoring system based on fresh water lake |
| CN116952768A (en) * | 2023-09-12 | 2023-10-27 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
-
2020
- 2020-08-04 CN CN202010774002.1A patent/CN111896335A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062612A (en) * | 2021-11-19 | 2022-02-18 | 贵州电网有限责任公司 | Gaseous detection device of portable SF6 |
| CN114062612B (en) * | 2021-11-19 | 2023-11-24 | 贵州电网有限责任公司 | Mobile SF6 gas detection device |
| CN114396984A (en) * | 2022-01-19 | 2022-04-26 | 成都秦川物联网科技股份有限公司 | Step-by-step operation type energy metering device with built-in gateway and Internet of things system |
| CN115745203A (en) * | 2022-12-05 | 2023-03-07 | 中国水产科学研究院珠江水产研究所 | Fishery resource monitoring system based on fresh water lake |
| CN115745203B (en) * | 2022-12-05 | 2024-05-14 | 中国水产科学研究院珠江水产研究所 | Fishery resource monitoring system based on freshwater lake |
| CN116952768A (en) * | 2023-09-12 | 2023-10-27 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
| CN116952768B (en) * | 2023-09-12 | 2023-12-08 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
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Application publication date: 20201106 |