CN2607566Y - Timing poportional sampler - Google Patents
Timing poportional sampler Download PDFInfo
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- CN2607566Y CN2607566Y CN 02274304 CN02274304U CN2607566Y CN 2607566 Y CN2607566 Y CN 2607566Y CN 02274304 CN02274304 CN 02274304 CN 02274304 U CN02274304 U CN 02274304U CN 2607566 Y CN2607566 Y CN 2607566Y
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- Prior art keywords
- solenoid valve
- sampling
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- water
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- 238000005070 sampling Methods 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000006870 function Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000013068 control sample Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004457 water analysis Methods 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a low-cost low-failure long-life timing equally-proportional sampling device having a function of automatically sampling the sewage and automatically online monitoring a gross amount of the pollutants at sewage drain outlets. A cabin body is inside provided with a computer, a temperature-controlled device, a recorder jar and a sampling bottle in sequence. The sampling bottle is inside provided with a blender. The outlet opening of the sampling bottle is connected with a water-discharging solenoid valve. The recorder jar is provided with an air inlet pipe, an exhaust tube, a water inlet pipe and a liquid-level switch. The air inlet pipe is connected with a constantly-opened terminal of a pneumatic two-position three-way magnetic valve through a pneumatic pipeline and an air inlet filter. The exhaust tube is connected with other pneumatic two-position three-way magnetic valve through a pneumatic pipeline and an air inlet filter. Other two corresponding terminals of two pneumatic two-position three-way magnetic valves are connected with diaphragm vacuum pumps. The water outlet terminal of the water-discharging solenoid valve and the water inlet terminal of the water inlet pipe are connected with T-pieces. The other sides of the T-pieces are connected with sewage pipes. The output terminal of the control unit is connected with a relay respectively connected with the diaphragm vacuum pumps, the pneumatic two-position three-way magnetic valves, a clamping electromagnet, the water-discharging solenoid valve and a mixing electric motor.
Description
Technical field
The utility model belongs to the environment protection and monitoring device, particularly a kind of timing equal proportion sampling device.
Background technology
Regularly the equal proportion sampling device is one of the important component part of environmental protection and basic work; it also is a kind of environmental information of obtaining; epistemic context changes, estimates environmental quality, grasps the Basic Ways of disposal of pollutants; be execution environment law, rule and standard, carry out the major technique means of environmental supervision and administration.
The most sewage sampling thiefs of China all adopt peristaltic pump, silicone tube to sample at present, because the sewage complicated component, corrosivity is strong, and solid particle is more, wearing and tearing easily, corrosion sample devices.Therefore, that its failure rate height, silicone tube are changed is frequent, sampling quantity changes greatly, and maintenance cost height, short, long-term use in serviceable life are measured inaccurate.In addition, existing sewage draining exit total amount of pollutant monitoring instrument far can not adapt to the needs of China's environmental monitoring job development.Mainly show as: technical grade is low, and low-level serious with duplication of production, scale and benefit are poor; Product quality is not high, unstable properties, and consistance is relatively poor, and serviceable life is short, the failure rate height; The research and development ability is lower, and real-time, reliability are relatively poor, and the system support productive capacity of on-line monitoring instrument is lower, and the cost height can not adapt to the needs in market.External sampling thief also exists similar problem, and they are than the superior part of domestic instrument, and just the processing technology of the reliability of electronic devices and components and parts is good.
Summary of the invention
The purpose of this utility model is to solve the problem that prior art exists, provide a kind of and realize regularly that equal proportion is sampled automatically, sampling when ratio does not wait, stochastic sampling, clean automatically and temperature control function and sewage draining exit pollute the monitoring of total amount automatic on-line, pollute facility operation record monitoring and communication, data transmission, etc. function and accurate measurement, cost is low, failure rate is low, sampling quantity changes for a short time, maintenance cost is low, the timing equal proportion sampling device of long service life.
Technical solution of the present utility model is: it has a cabinet, top at cabinet is provided with microcomputer, power supply unit, said microcomputer is by A/D converter, CPU (central processing unit), the memory cell of sampling processing data, the keyboard unit of control sample mode, be used for control pump and solenoid valve and realize the control module of sampling function, be used to monitor the monitoring means of the ruuning situation of CPU (central processing unit), the display unit that is used for display device ruuning situation is formed, in cabinet, be provided with the attemperating unit that links to each other with control module and be used to control temperature in the cabinet, be provided with recorder jar at the cabinet middle part, bottom at cabinet is provided with sampling bottle, in sampling bottle, be provided with stirrer, stirrer be installed in sampling bottle on the stirring motor that covers be connected, be connected by flexible pipe between the outlet of recorder jar and the inlet of sampling bottle, the flexible pipe that connects recorder jar and sampling bottle is provided with the clamp electromagnet, outlet at sampling bottle also is connected to the solenoid valve that discharges water, its special character is to be respectively arranged with draft tube on recorder jar, exhaust tube, water inlet pipe and level switch, said draft tube is passed through pneumatic line, air intake filter is connected with the Chang Kaiduan of pneumatic two-bit triplet solenoid valve, said exhaust tube passes through pneumatic line, the normal-closed end of filtrator and another control gas two-bit triplet solenoid valve of bleeding joins, between another corresponding end of two pneumatic two-bit triplet solenoid valves, also be connected to vacuum diaphragm pump by pneumatic line, the water delivering orifice of the said solenoid valve that discharges water and water inlet pipe inlet also are connected to threeway, the other end of threeway is connected to sewer, be connected to respectively and vacuum diaphragm pump at the output terminal of control module, pneumatic two-bit triplet solenoid valve, the clamp electromagnet, solenoid valve discharges water, the relay that stirring motor links to each other is used for control by vacuum diaphragm pump, pneumatic two-bit triplet solenoid valve, the clamp electromagnet, solenoid valve discharges water, the work of the sampling topworks that stirrer constitutes.
According to above-mentioned timing equal proportion sampling device, be connected to modulator-demodular unit or data radio station at the output terminal of communication unit, to realize telephone wire data remote or wireless-transmission network function.
According to above-mentioned timing equal proportion sampling device, be connected to eight tunnel input end interface circuit at the input end of A/D converter, be used for realizing the transmission of signal such as oil and equipment operation situation in flow, pH value, ammonia nitrogen concentration, the water.
The utility model has the advantages that and use vacuum diaphragm pump to be sampling power, sampling power is powerful, the hoisting depth height, can be in the bigger applications of water quality particle, the sewage of being gathered does not contact with the pump housing of sampling thief, adopt the clamp electromagnet that sewage is not contacted with valve body, in pneumatic line, add fixed filter to reduce the failure rate of air-operated solenoid valve, before water analysis, compound sample is stirred, guaranteed the science of collected specimens, the accuracy of water analysis and the serviceable life of sampling thief, pass through system controlled by computer, can realize that the timing equal proportion of sewage samples automatically, sampling when ratio does not wait, stochastic sampling, automatically clean and temperature control, collection sewage equal proportion sampling, the discharge of sewage, sewage pollution thing on-line monitoring, data transmission is in one, and cost is low, the measuring accuracy height, failure rate is low, sampling quantity changes little, maintenance cost is low, Installation and Debugging are easy, use flexibly, and application is extensive.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit block diagram;
Fig. 3 is the utility model sampling process process flow diagram.
Among the figure: 1-relay control interface; The 2-vacuum diaphragm pump; The 3-pneumatic line; The 4-pneumatic line; The pneumatic two-bit triplet solenoid valve of 5-; The pneumatic two-bit triplet solenoid valve of 6-; The 7-air intake filter; The 8-filtrator of bleeding; The 9-pneumatic line; The 10-pneumatic line; The 11-exhaust tube; The 12-draft tube; 13-water level bar; 14-sampling thief loam cake; The 15-water inlet pipe; 16-magnetic float; The 17-recorder jar; 18-clamp electromagnet; The 19-flexible pipe; The 20-stirring motor; The 21-stirrer; The 22-sampling bottle; The 23-solenoid valve that discharges water; The 24-threeway; The 25-sewer; The 26-cabinet; The 27-attemperating unit; The 28-lower clapboard; The 29-upper spacer; The 30-microcomputer; The A-external unit; The B-drive unit; 31-central control unit (CPU); The 32-control module; The 33-display unit; The 34-keyboard unit; 35-eight tunnel input end interface; The 36-clock unit; The 37-memory cell; The 38-monitoring unit; The 39-communication unit; The 40-A/D converter; The 41-power supply unit; 42-control pump relay; 43, the relay of 43`-control pneumoelectric magnet valve; The relay of 44-control clamp electromagnet; The relay of 45-control heater solenoid valve; The relay of 46-control refrigerator solenoid valve; 47-controls the relay of the solenoid valve that discharges water; The relay of solenoid valve is stirred in 48-control; The 49-topworks that samples; 50-modulator-demodular unit or data radio station, the 51-refrigerator; The 52-well heater; The 53-temperature sensor.
Embodiment
As shown in the figure, this timing equal proportion sampling device has a cabinet 26, upper spacer 29 is arranged in cabinet 26, lower clapboard 28, upper spacer 29 is provided with microcomputer 30 and power supply unit 41, microcomputer 30 is by CPU (central processing unit) (CPU) 31, be used to control the control module 32 of each pump and solenoid valve realization sampling function, the display unit 33 that is used for display device ruuning situation, the keyboard unit 34 of control sample mode, be used to realize eight circuit-switched data collections, comprise flow, pH value, ammonia nitrogen concentration, index such as oil and equipment operation situation in the water, and be connected on eight tunnel input end interface 35 of mould/number (A/D) converting unit 40 input ends, mould/number (A/D) converting unit 40, clock unit 36, the memory cell 37 of sampling processing data, be used to monitor the monitoring means 38 of CPU ruuning situation, adopt the communication unit 39 of communication interface (RS232 or RS485) to form, wherein display unit 33, keyboard unit 34 and eight tunnel input end interface 35 are formed external unit A, output terminal at communication unit 39 can be connected to modulator-demodular unit or data radio station 50, with data remote or the wireless-transmission network function of realization with the main frame of upper level control center, lower clapboard 27 is provided with recorder jar 17, be provided with sampling bottle 22 in the bottom of cabinet 26, be connected by flexible pipe 19 between the inlet of the outlet of recorder jar 17 and sampling bottle 22, the flexible pipe 19 that connects recorder jar 17 and sampling bottle 22 is provided with clamp electromagnet 18, on the loam cake 14 of recorder jar 17, be fitted with draft tube 12 respectively, exhaust tube 11, water inlet pipe 15 and by water level bar 13 and be sleeved on the level switch that the magnetic float 16 on the water level bar 13 constitutes, said level switch links to each other with the input end of microcomputer 30, and by pneumatic two-bit triplet solenoid valve 6 actions of control module 32 controls, and then realize water level control.Said draft tube 12 is by pneumatic line 9, air intake filter 7 is connected with pneumatic two-bit triplet solenoid valve 5 Chang Kaiduan, said exhaust tube 11 is by pneumatic line 10, the normal-closed end of filtrator 8 and another pneumatic two-bit triplet solenoid valve 6 of bleeding joins, at pneumatic two-bit triplet solenoid valve 5, pass through pneumatic line 3 between another corresponding end of 6,4 are connected with vacuum diaphragm pump 2, in sampling bottle 22, also be provided with stirrer 21, said stirrer 21 be installed in sampling bottle 22 on the stirring motor 20 that covers be connected, water delivering orifice at sampling bottle 22 connects the solenoid valve 23 that discharges water, discharging water also is connected to threeway 24 on the other end of solenoid valve 23 and water inlet pipe 15 inlets, and the other end of said threeway 24 is connected to sewer 25.In cabinet 26 sidewalls, also be provided with the attemperating unit 27 that constitutes by refrigerator 51, well heater 52 and temperature sensor 53, be used for keeping being in the cabinet predetermined temperature range.Link to each other with control module 32 output terminals by the relay 42 that is used to control vacuum diaphragm pump 2, control pneumatic two-bit triplet solenoid valve 5,6 relay 43,43`, the relay 44 of control clamp electromagnet 18, the relay 45 of control heater 52 solenoid valves, the relay 46 of control refrigerator 51 solenoid valves, control the relay 47 of the solenoid valve 23 that discharges water, the lead-in wire of the drive unit B that the relay 48 of control stirring motor 20 constitutes is connected on the relay control interface 1, and by relay control interface 1 and corresponding vacuum diaphragm pump 2, pneumatic two-bit triplet solenoid valve 5,6, clamp electromagnet 18, stirring motor 20, the solenoid valve 23 that discharges water links to each other with attemperating unit 27, be used for control by vacuum diaphragm pump 2, pneumatic two-bit triplet solenoid valve 5,6, clamp electromagnet 18, stirring motor 20, the sampling topworks 49 that the solenoid valve 23 that discharges water constitutes and the work of attemperating unit 27.
This timing equal proportion sampling device uses vacuum diaphragm pump 2 to be sampling power, sampling power is powerful, the hoisting depth height, can be in the bigger applications of water quality particle, adopt clamp electromagnet 18, do not contacted by the sewage gathered with the pump housing and valve body in the sampling apparatus, at pneumatic line 9, add fixed filter 7 in 10,8 to reduce pneumatic two-bit triplet solenoid valve 5,6 failure rate, before water analysis, compound sample is stirred, guaranteed the science of collected specimens, the accuracy of water analysis and the serviceable life of sampling thief, in the time of can realizing waiting, when ratio does not wait, divide bottle and be regardless of bottle (mixing) sampling, automatic cleaning function is arranged.
When reality is used, eight tunnel input end interface 35 at this timing equal proportion sampling device connect sensor, be used for realizing flow, pH value, ammonia nitrogen concentration, the transmission of signal such as oil and equipment operation situation in the water, the output terminal of modulator-demodular unit or data radio station 50 is linked to each other with the main frame of upper level control center, sensor is digital signal with analog signal conversion and is sent to CPU31 through A/D converting unit 40, CPU31 deposits data in memory cell 37 (making it have black box function) after data are handled, and remove to control each pump by control module 32 and solenoid valve is realized the sampling function according to condition (by keyboard unit 34 input and be stored in the memory cell 37).Simultaneously ruuning situation, the display unit 33 of monitoring unit 38 monitoring CPU31 show the system time or the ruuning situation of each input equipment and corresponding data, communication unit 39 reach data the upper level admin site as required, and sampling process as shown in Figure 3.
Sampling topworks 49 adopts negative pressure to promote principle under the control of microcomputer 30, extracts water sample, can finish pipeline cleaning-suction water sample-notes recorder jar-notes sampling bottle-stirring-minute bottle-constant temperature automatically and preserve functions such as (adopt circulation for one and put water one time).Before vacuum diaphragm pump 2 sampling, after the sampling, automatically pipeline is cleaned, also wash away near the foreign material the sampled point simultaneously.
Claims (3)
1, a kind of timing equal proportion sampling device, comprise cabinet, top at cabinet is provided with microcomputer, power supply unit, said microcomputer is by A/D converter, CPU (central processing unit), the memory cell of sampling processing data, the keyboard unit of control sample mode, be used for control pump and solenoid valve and realize the control module of sampling function, be used to monitor the monitoring means of the ruuning situation of CPU (central processing unit), the display unit that is used for display device ruuning situation is formed, in cabinet, be provided with the attemperating unit that links to each other with control module and be used to control temperature in the cabinet, be provided with recorder jar at the cabinet middle part, bottom at cabinet is provided with sampling bottle, in sampling bottle, be provided with stirrer, stirrer be installed in sampling bottle on the stirring motor that covers be connected, be connected by flexible pipe between the outlet of recorder jar and the inlet of sampling bottle, the flexible pipe that connects recorder jar and sampling bottle is provided with the clamp electromagnet, outlet at sampling bottle also is connected to the solenoid valve that discharges water by pipeline, it is characterized in that: on recorder jar, be respectively arranged with draft tube, exhaust tube, water inlet pipe and level switch, said draft tube is passed through pneumatic line, air intake filter is connected with the Chang Kaiduan of pneumatic two-bit triplet solenoid valve, said exhaust tube passes through pneumatic line, the normal-closed end of filtrator and another control gas two-bit triplet solenoid valve of bleeding joins, between another corresponding end of two pneumatic two-bit triplet solenoid valves, also be connected to vacuum diaphragm pump by pneumatic line, the water delivering orifice of the said solenoid valve that discharges water and water inlet pipe inlet also are connected to threeway, the other end of threeway is connected to sewer, be connected to respectively and vacuum diaphragm pump at the output terminal of control module, pneumatic two-bit triplet solenoid valve, the clamp electromagnet, solenoid valve discharges water, the relay that stirring motor links to each other is used for control by vacuum diaphragm pump, pneumatic two-bit triplet solenoid valve, the clamp electromagnet, solenoid valve discharges water, the work of the sampling topworks that stirrer constitutes.
2, timing equal proportion sampling device according to claim 1, it is characterized in that: the output terminal at communication unit is connected to modulator-demodular unit or data radio station, to realize telephone wire data remote or wireless-transmission network function.
3, timing equal proportion sampling device according to claim 1 and 2 is characterized in that: the input end at A/D converter is connected to eight tunnel input end interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274304 CN2607566Y (en) | 2002-07-22 | 2002-07-22 | Timing poportional sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274304 CN2607566Y (en) | 2002-07-22 | 2002-07-22 | Timing poportional sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607566Y true CN2607566Y (en) | 2004-03-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274304 Expired - Fee Related CN2607566Y (en) | 2002-07-22 | 2002-07-22 | Timing poportional sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607566Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975366B (en) * | 2006-12-14 | 2010-12-08 | 厦门大学 | Classified sampling device for plankton in ship's ballast water |
| CN102759460A (en) * | 2012-07-26 | 2012-10-31 | 丁超群 | Handheld measurement sampler for oxygen bearing standard color comparison tube |
| CN103018074A (en) * | 2012-11-23 | 2013-04-03 | 辽宁石油化工大学 | Water sample collector |
| CN103063478A (en) * | 2013-01-21 | 2013-04-24 | 河北先河环保科技股份有限公司 | Automatic underwater petroleum pollutant sampling device |
| CN105547754A (en) * | 2016-02-03 | 2016-05-04 | 浙江恒达仪器仪表股份有限公司 | Water quality equal-proportion mixed sampling and standard-exceeding sample reserving system and method |
| CN105929147A (en) * | 2016-04-27 | 2016-09-07 | 浙江省海洋水产研究所 | Ready-to-use toxicity test device |
| CN107631908A (en) * | 2017-09-20 | 2018-01-26 | 青岛瑞通测控技术有限公司 | A kind of novel pipeline automatic sampler |
| CN108525423A (en) * | 2018-06-13 | 2018-09-14 | 锦州华冠环境科技实业股份有限公司 | Flue gas membrane type is dried system |
| CN119246806A (en) * | 2024-12-09 | 2025-01-03 | 武汉敢为科技有限公司 | A highly integrated online monitoring device for dissolved hydrogen content in cooling water of generators |
-
2002
- 2002-07-22 CN CN 02274304 patent/CN2607566Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975366B (en) * | 2006-12-14 | 2010-12-08 | 厦门大学 | Classified sampling device for plankton in ship's ballast water |
| CN102759460A (en) * | 2012-07-26 | 2012-10-31 | 丁超群 | Handheld measurement sampler for oxygen bearing standard color comparison tube |
| CN102759460B (en) * | 2012-07-26 | 2014-05-07 | 丁超群 | Handheld measurement sampler for oxygen bearing standard color comparison tube |
| CN103018074A (en) * | 2012-11-23 | 2013-04-03 | 辽宁石油化工大学 | Water sample collector |
| CN103063478A (en) * | 2013-01-21 | 2013-04-24 | 河北先河环保科技股份有限公司 | Automatic underwater petroleum pollutant sampling device |
| CN103063478B (en) * | 2013-01-21 | 2015-05-06 | 河北先河环保科技股份有限公司 | Automatic underwater petroleum pollutant sampling device |
| CN105547754A (en) * | 2016-02-03 | 2016-05-04 | 浙江恒达仪器仪表股份有限公司 | Water quality equal-proportion mixed sampling and standard-exceeding sample reserving system and method |
| CN105547754B (en) * | 2016-02-03 | 2018-08-03 | 浙江恒达仪器仪表股份有限公司 | A kind of water quality equal proportion mixing sampling and over-standard sample retention system and method |
| CN105929147A (en) * | 2016-04-27 | 2016-09-07 | 浙江省海洋水产研究所 | Ready-to-use toxicity test device |
| CN105929147B (en) * | 2016-04-27 | 2018-05-18 | 浙江省海洋水产研究所 | One kind is i.e. with i.e. with toxicity test equipment |
| CN107631908A (en) * | 2017-09-20 | 2018-01-26 | 青岛瑞通测控技术有限公司 | A kind of novel pipeline automatic sampler |
| CN107631908B (en) * | 2017-09-20 | 2020-03-31 | 青岛瑞通测控技术有限公司 | Novel pipeline automatic sampler |
| CN108525423A (en) * | 2018-06-13 | 2018-09-14 | 锦州华冠环境科技实业股份有限公司 | Flue gas membrane type is dried system |
| CN119246806A (en) * | 2024-12-09 | 2025-01-03 | 武汉敢为科技有限公司 | A highly integrated online monitoring device for dissolved hydrogen content in cooling water of generators |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |