CN107144676B - Detection equipment, metering tube, metering device and metering method thereof - Google Patents
Detection equipment, metering tube, metering device and metering method thereof Download PDFInfo
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- CN107144676B CN107144676B CN201710440258.7A CN201710440258A CN107144676B CN 107144676 B CN107144676 B CN 107144676B CN 201710440258 A CN201710440258 A CN 201710440258A CN 107144676 B CN107144676 B CN 107144676B
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 110
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a detection device, a metering tube for the detection device, a metering device and a metering method thereof, wherein a capacity-increasing cavity (2) with an increased inner diameter is arranged in the metering tube (1). According to the invention, the volume-increasing cavity is arranged in the metering tube, so that air bubbles in the water sample and the reaction reagent can be discharged in the volume-increasing cavity, the influence of the air bubbles on the metering result of the metering tube is reduced, and the metering and liquid taking precision of the metering tube under micro-liquid metering is ensured.
Description
Technical Field
The present invention relates to detection analysis, and in particular to a detection apparatus and a metering tube, a metering device and a metering method thereof for the detection apparatus.
Background
With the development of technology, the problem of environmental pollution is gradually aggravated by the progress of human beings, wherein water resources are valuable wealth for human beings to live, and therefore, the water quality detection is particularly important.
The working process of the current environmental protection monitoring and detecting equipment for water quality analysis generally adopts an analysis flow of 'water sample and reagent mixing-reaction-detection': the instrument firstly sequentially injects the water sample to be detected and other reaction reagents into the reaction container quantitatively through the metering device, reacts under a certain condition after being uniformly mixed, and finally detects the water sample by the principles of a colorimetry, a titration method or an electrode method and the like to determine the concentration of the index to be detected of the water sample.
When metering, bubbles are inevitably generated in a water sample and a reaction reagent, but the metering accuracy of a metering device is affected by the existence of the bubbles, and the situation is particularly prominent under the condition of 0.1-0.6 milliliter of micro-liquid amount liquid inlet, and even the liquid inlet accuracy error of the existing device is larger than 2% and can not be used. In the prior art, two metering devices exist, one of the metering devices is a metering tube with a larger tube diameter, and the error is large when the liquid level height is used for metering the liquid volume of the micro liquid amount due to the larger cross section of the metering tube, and the metering tube can only be vertically installed; in addition, the metering tube enables more liquid film and even liquid beads to remain on the tube wall, and the measurement accuracy of the metering tube is affected. The other is a metering tube with smaller tube diameter, and the method has small cross section area, but because the tube diameter is small, once air bubbles are mixed in a water sample and a reaction reagent, the air bubbles are difficult to discharge, and the metering device virtually reports the total volume of the metering liquid due to the existence of the air bubbles, so that the metering accuracy is affected.
Disclosure of Invention
The invention aims to provide a detection device, a metering tube, a metering device and a metering method thereof, wherein the metering device can discharge bubbles and ensure the metering liquid taking precision of the metering device under the metering of micro liquid.
In order to achieve the above object, according to an aspect of the present invention, there is provided a metering tube for a detection apparatus, in which a capacity-increasing chamber having an increased inner diameter is provided.
Preferably, the metering tube comprises a main body portion and a compatibilizer portion connected to the main body portion, the compatibilizer cavity being defined in the compatibilizer portion.
Preferably, the inner diameter of the body portion is 0.1mm to 5.0mm, preferably 0.5mm to 2mm; and/or the maximum inner diameter of the capacity-increasing cavity is more than 5mm, preferably more than or equal to 8mm.
Preferably, the volume-increasing cavity comprises a cylindrical part and conical transition parts positioned at two ends of the cylindrical part.
Preferably, the metering tube comprises a capacity-increasing tube section, a first tube section and a second tube section, wherein the capacity-increasing tube section comprises a capacity-increasing cavity, a first connecting port and a second connecting port, the first connecting port and the second connecting port are positioned at two ends of the capacity-increasing cavity, the first tube section is connected with the first connecting port, and the second tube section is connected with the second connecting port.
Preferably, the first connection port and the second connection port are respectively provided with a step part extending inwards.
Preferably, the end face of the first pipe section is abutted against the step part in the first connecting port and is in interference connection through a first sealing connecting sleeve; the end face of the second pipe section is abutted against the step part in the second connecting port and is in interference connection through a second sealing connecting sleeve.
According to a second aspect of the present invention there is provided a metering device for a detection apparatus, the metering device comprising a first predetermined level detector arranged on the first pipe section, a second predetermined level detector arranged on the second pipe section, and the metering pipe for the detection apparatus, the metering level of the first predetermined level detector being greater than the metering level of the second predetermined level detector.
According to a third aspect of the present invention there is provided a detection apparatus comprising a bi-directional driver, a multi-channel directional valve and a reaction vessel, the detection apparatus further comprising said metering means for the detection apparatus and a first conduit and a plurality of second conduits respectively connected to said multi-channel directional valve, said plurality of second conduits respectively being for communicating water samples and a plurality of detection reagents, said first conduit section being further connected to said multi-channel directional valve, said multi-channel directional valve being connected to said reaction vessel via said first conduit, said second conduit section being further connected to one end of said bi-directional driver, the other end of said bi-directional driver being in communication with the external atmosphere.
According to a fourth aspect of the present invention there is provided a metering method using the metering device for a detection apparatus, characterized in that the method comprises:
s1: liquid enters the metering tube from the first tube section, and the liquid entering the metering tube enters the volume-increasing cavity for defoaming;
S2: when the measured liquid amount is larger than the measured liquid level of the first preset liquid level detector, enabling the defoamed liquid to fall back to the first pipe section completely, and then measuring the required liquid amount through the first preset liquid level detector;
When the measured liquid amount is larger than the measured liquid level of the second preset liquid level detector, enabling the defoamed liquid to directly enter the second pipe section, and measuring the required liquid amount through the second preset liquid level detector;
s3: the metered liquid is discharged through the first pipe section.
Through the technical scheme, the volume-increasing cavity is arranged in the metering tube, so that bubbles in the water sample and the reaction reagent can be discharged in the volume-increasing cavity, the influence of the bubbles on the metering result of the metering tube is reduced, and the metering and liquid taking precision of the metering tube under micro-liquid metering is ensured.
Drawings
FIG. 1 is a cross-sectional view of a metering tube for a test apparatus according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged partial view of a metering tube for a detection apparatus according to a preferred embodiment of the present invention;
FIG. 3 is a front view of a metering device for a detection apparatus according to a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of a metering device for a control and sensing apparatus in accordance with a preferred embodiment of the present invention;
fig. 5 is a perspective view of a detection apparatus according to a preferred embodiment of the present invention;
fig. 6 is a front view of a detection apparatus according to a preferred embodiment of the present invention.
Description of the reference numerals
1. Metering tube 2 capacity-increasing cavity
3. First predetermined liquid level detector 4 second predetermined liquid level detector
5. Bidirectional driver 6 multichannel direction-selecting valve
7. First pipe of reaction vessel 8
9. Second pipeline
11. First tube section of Rong Guanduan increase 12
13. First sealing connection sleeve of second pipe section 14
15. Second sealing connecting sleeve
21. Cylindrical portion 22 conical transition portion
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, the positional relationship of the various components with respect to one another is generally described with respect to the orientation shown in the drawings or with respect to the vertical, vertical or gravitational orientation; azimuth terms such as "inner and outer" generally refer to the interior and exterior of the cavity 2.
When metering, bubbles are inevitably generated in the water sample and the reaction reagent, but the metering accuracy of the metering device is affected by the existence of the bubbles. In the prior art, two metering devices exist, one of the metering devices is a metering tube with a larger tube diameter, and the error is large when the liquid level height is used for metering the liquid volume of the micro liquid amount due to the larger cross section of the metering tube, and the metering tube can only be vertically installed; in addition, the metering tube enables more liquid film and even liquid beads to remain on the tube wall, and the measurement accuracy of the metering tube is affected. The other is a metering tube with smaller tube diameter, and the method has small cross section area, but because the tube diameter is small, once air bubbles are mixed in a water sample and a reaction reagent, the air bubbles are difficult to discharge, and the metering device virtually reports the total volume of the metering liquid due to the existence of the air bubbles, so that the metering accuracy is affected.
Referring to fig. 1 and 2, a metering tube 1 for a detection apparatus is provided, and a volume-increasing chamber 2 with an increased inner diameter is provided in the metering tube 1. According to the invention, the volume-increasing cavity 2 is arranged in the metering tube 1, so that air bubbles in a water sample and a reaction reagent can be discharged in the volume-increasing cavity 2, the influence of the air bubbles on the metering result of the metering tube 1 is reduced, and the metering and liquid taking precision of the metering tube 1 under micro-liquid amount metering is ensured.
Preferably, the metering tube 1 comprises a main body portion and a volume increasing portion connected to said main body portion, in which volume increasing portion a volume increasing chamber 2 is defined. Wherein the inner diameter of the main body part is 0.1mm-5.0mm, preferably 0.5mm-2mm; and/or the maximum internal diameter of the cavity 2 is greater than 5mm, preferably greater than or equal to 8mm. The present invention reduces the amount of liquid remaining on the wall of the measuring tube 1 by designing the inner diameter of the main body of the measuring tube 1 to be smaller than that of the measuring tube in the prior art, thereby ensuring the measuring accuracy of the measuring tube 1. Of course, it will be appreciated by those skilled in the art that the maximum internal diameter of the body portion and the volume-increasing chamber 2 may be designed as the case may be.
In order to further ensure the metering accuracy of the metering tube 1, see fig. 1 to 6, the volume increasing chamber 2 preferably comprises a cylindrical portion 21 and conical transition portions 22 at both ends of the cylindrical portion 21. The conical transition portion 22 facilitates the inflow and outflow of liquid, and reduces the amount of liquid remaining on the tube wall of the metering tube 1, as compared to a case where the cylindrical portion 21 is directly connected to the main body portion of the metering tube 1. Since the cylindrical portion 21 is directly connected to the main body portion of the measuring tube 1, a stepped structure may be formed, and liquid may remain at the stepped structure, resulting in inaccurate results of the measuring tube 1.
In the present invention, the measuring tube 1 may be an integral tube or a segmented tube. Preferably, in the preferred embodiment of the present invention, referring to fig. 1 to 6, the metering tube 1 includes a capacity-increasing tube section 11, a first tube section 12 and a second tube section 13, the capacity-increasing tube section 11 includes a capacity-increasing chamber 2 and first and second connection ports at both ends of the capacity-increasing chamber 2, the first tube section 12 is connected to the first connection port, and the second tube section 13 is connected to the second connection port. By providing the metering tube 1 as a segment, the process difficulty of manufacturing the metering tube 1 can be reduced. And when the metering tube 1 is partially damaged or when the capacity increasing tube sections 11 with different sizes need to be replaced, only partial replacement is needed, so that the whole replacement of the metering tube 1 is avoided.
There are various ways in which the capacity-increasing pipe section 11 is connected to the first pipe section 12 and the second pipe section 13. In a preferred embodiment of the present invention, referring to fig. 1 and 2, the first connection port and the second connection port are each provided with an inwardly extending stepped portion therein. When the first pipe section 12 is inserted into the first coupling port, the inserted length of the first pipe section 12 is restricted by the stepped portion in order to prevent the inserted length of the first pipe section 12 from becoming excessively long. That is, the end surface of the first pipe section 12 abuts against the stepped portion in the first joint port to limit the length of the first pipe section 12 to be inserted. Similarly, when the second pipe section 13 is inserted into the second connection port, the insertion length of the second pipe section 13 is restricted by the stepped portion in order to prevent the insertion length of the second pipe section 13 from becoming excessively long. That is, the end surface of the second pipe section 13 abuts against the stepped portion in the second connection port, thereby limiting the length of insertion of the second pipe section 13.
In order to further ensure tightness and connection reliability between the first pipe section 12 and the first connection port and between the second pipe section 13 and the second connection port. In particular, the end face of the first pipe section 12 abuts against the step in the first connection port and is in interference connection through the first sealing connection sleeve 14; the end face of the second pipe section 13 is abutted against the step part in the second connecting port and is in interference connection through the second sealing connecting sleeve 15. Since the perfluororubber sheath is corrosion-resistant and high temperature-resistant, it is preferable that both the first seal connection sleeve 14 and the second seal connection sleeve 15 are perfluororubber sheaths.
Referring to fig. 3 and 4, a metering device for a detection apparatus according to a preferred embodiment of the present invention is shown, the metering device comprising a first predetermined liquid level detector 3, a second predetermined liquid level detector 4 and the metering tube 1 for a detection apparatus, the first predetermined liquid level detector 3 being arranged on a first tube section 12, the second predetermined liquid level detector 4 being arranged on a second tube section 13, the metering liquid level of the first predetermined liquid level detector 3 being greater than the metering liquid level of the second predetermined liquid level detector 4. The metering levels of the first predetermined level detector 3 and the second predetermined level detector 4 may be set according to the specific situation. By arranging the first predetermined level detector 3 on the first pipe section 12 and the second predetermined level detector 4 on the second pipe section 13, a larger volume and a smaller volume of liquid can be metered.
Referring to fig. 5 and 6, a detection device of a preferred embodiment of the present invention is shown. The detection equipment comprises a bidirectional driver 5, a multichannel direction-selecting valve 6 and a reaction container 7, the detection equipment also comprises a metering device for the detection equipment, a first pipeline 8 and a plurality of second pipelines 9 which are respectively connected with the multichannel direction-selecting valve 6, the plurality of second pipelines 9 are respectively used for communicating water samples and various detection reagents, the first pipeline section 12 is also connected with the multichannel direction-selecting valve 6, the multichannel direction-selecting valve 6 is connected with the reaction container 7 through the first pipeline 8, the second pipeline section 13 is also connected with one end of the bidirectional driver 5, and the other end of the bidirectional driver 5 is communicated with the outside atmosphere. The bi-directional driver 5 is activated, the multi-channel selector valve 6 is operated to communicate with one of the plurality of second conduits 9, and the liquid communicated with that second conduit 9 is pumped by the bi-directional driver 5 into the metering device for metering. The multi-channel selector valve 6 is then operated to communicate with the first conduit 8 such that the metered liquid is pumped through the bi-directional actuator 5 into the reaction vessel 7 to complete a single liquid addition to the reaction vessel 7. By repeating the above-described operation, and operating the multi-channel selector valve 6 to communicate with different ones of the plurality of second pipes 9, the liquids with which the second pipes 9 communicate are respectively fed into the reaction vessel 7.
In the present invention, the bi-directional driver 5 is preferably a peristaltic pump; the multi-channel directional valve is a fluid device having a common port and a plurality of distribution ports, the common port being communicable with only one of the distribution ports under the influence of a control system. In the present invention, the fluid device may be other fluid devices or combinations of devices having the above functions, for example, a tandem valve having a common port formed by a plurality of two-way shut-off valves.
The metering method provided by the invention using the metering device for the detection equipment is specifically described below, and comprises the following steps:
s1: liquid enters the metering tube 1 from the first tube section 12, and the liquid entering the metering tube 1 enters the volume-increasing cavity 2 for defoaming;
S2: when the measured liquid amount is larger than the measured liquid level of the first preset liquid level detector 3, enabling the defoamed liquid to fall back to the first pipe section 12 completely, and then measuring the required liquid amount through the first preset liquid level detector 3;
When the measured liquid amount is larger than the measured liquid level of the second preset liquid level detector 4, the defoamed liquid directly enters the second pipe section 13, and the required liquid amount is measured through the second preset liquid level detector 4;
s3: the metered liquid is discharged through the first tube section 12.
Wherein for the case where the amount of liquid metered is greater than the metered level of the second predetermined level detector 4, this can also be done by metering the first predetermined level detector 3a plurality of times.
In summary, according to the invention, by arranging the volume-increasing cavity 2 in the metering tube 1, air bubbles in the water sample and the reactant can be discharged in the volume-increasing cavity 2, so that the influence of the air bubbles on the metering result of the metering tube 1 is reduced, preferably, the inner diameter of the main body part of the metering tube 1 is designed to be smaller than that of the metering tube in the prior art, the liquid amount remained on the tube wall of the metering tube 1 is reduced, the liquid taking accuracy during the micro liquid amount circulation of the metering tube is ensured, and the liquid inlet volume-fixing accuracy during the micro liquid amount of the metering tube is greatly improved due to the reduction of the tube diameter and the cross section area at the position of the liquid level detector. In addition, compared with the second scheme with medium and small pipe diameters in the prior art, the invention greatly reduces the total length of the metering pipe through the design of the capacity increasing pipe, and is convenient to install; meanwhile, the surface area and volume ratio of the metering tube are reduced (the larger the tube diameter is, the smaller the surface area and volume ratio is), which has important significance in liquid feeding of micro liquid amount, can greatly reduce the liquid volume of liquid film residue when liquid is hung on a wall or liquid is fed and discharged, and improves the liquid feeding metering precision.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and these simple modifications all fall within the scope of the present invention, for example, a metering tube with similar functions composed of a plurality of capacity-increasing tubes and/or two or more liquid detectors also fall within the scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (7)
1. The metering tube for the detection equipment is characterized in that the metering tube (1) comprises a volume increasing cavity (2) with an increased inner diameter, a first connecting port and a second connecting port which are positioned at two ends of the volume increasing cavity (2), wherein the volume increasing cavity (2) comprises a volume increasing cavity (Rong Guanduan) (11), a first tube section (12) and a second tube section (13), the first tube section (12) is connected with the first connecting port, and the second tube section (13) is connected with the second connecting port;
The first connecting port and the second connecting port are internally provided with inwards extending step parts;
The end face of the first pipe section (12) is abutted against the step part in the first connecting port and is in interference connection through a first sealing connecting sleeve (14); the end face of the second pipe section (13) is abutted against the step part in the second connecting port and is in interference connection through a second sealing connecting sleeve (15).
2. A metering tube for a detection apparatus according to claim 1, characterized in that the metering tube (1) comprises a main body part and a volume-increasing part connected to the main body part, in which volume-increasing chamber (2) is defined.
3. A metering tube for a test apparatus as claimed in claim 2 wherein the inner diameter of the body portion is 0.1mm to 5.0mm; and/or the maximum inner diameter of the capacity-increasing cavity (2) is larger than 5mm.
4. Metering tube for a detection apparatus according to claim 1, characterized in that the volume-increasing chamber (2) comprises a cylindrical portion (21) and conical transition portions (22) at both ends of the cylindrical portion (21).
5. Metering device for a detection apparatus, characterized in that the metering device comprises a first predetermined liquid level detector (3), a second predetermined liquid level detector (4) and a metering tube (1) for a detection apparatus according to any one of claims 1 to 4, the first predetermined liquid level detector (3) being arranged on the first tube section (12), the second predetermined liquid level detector (4) being arranged on the second tube section (13), the metering liquid level of the first predetermined liquid level detector (3) being greater than the metering liquid level of the second predetermined liquid level detector (4).
6. A detection device comprises a bidirectional driver (5), a multichannel direction-selecting valve (6) and a reaction container (7), and is characterized in that,
The detection device further comprises a metering device for the detection device according to claim 5, a first pipeline (8) and a plurality of second pipelines (9) which are respectively connected with the multichannel direction-selecting valve (6), wherein the second pipelines (9) are respectively used for communicating water samples and various detection reagents, the first pipeline section (12) is further connected with the multichannel direction-selecting valve (6), the multichannel direction-selecting valve (6) is connected with the reaction container (7) through the first pipeline (8), the second pipeline section (13) is further connected with one end of the bidirectional driver (5), and the other end of the bidirectional driver (5) is communicated with the outside atmosphere.
7. A metering method using the metering device for a detecting apparatus according to claim 5, characterized in that the method comprises:
s1: liquid enters the metering tube (1) from the first tube section (12), and the liquid entering the metering tube (1) enters the capacity-increasing cavity (2) for defoaming;
S2: when the measured liquid amount is larger than the measured liquid level of the first preset liquid level detector (3), enabling the defoamed liquid to fall back to the first pipe section (12) completely, and then measuring the required liquid amount through the first preset liquid level detector (3);
When the measured liquid amount is larger than the measured liquid level of the second preset liquid level detector (4), enabling the defoamed liquid to directly enter the second pipe section (13), and measuring the required liquid amount through the second preset liquid level detector (4);
S3: the metered liquid is discharged through the first tube section (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710440258.7A CN107144676B (en) | 2017-06-12 | 2017-06-12 | Detection equipment, metering tube, metering device and metering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710440258.7A CN107144676B (en) | 2017-06-12 | 2017-06-12 | Detection equipment, metering tube, metering device and metering method thereof |
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| CN107144676A CN107144676A (en) | 2017-09-08 |
| CN107144676B true CN107144676B (en) | 2024-06-18 |
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| CN115824712B (en) * | 2022-11-30 | 2023-08-11 | 江西怡杉环保股份有限公司 | Sampling metering quantitative whole-process electric data processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106769342A (en) * | 2017-03-10 | 2017-05-31 | 国家海洋技术中心 | A kind of integrated recombiner |
| CN207894908U (en) * | 2017-06-12 | 2018-09-21 | 山东龙发环保科技有限公司 | Detection device and gauge line, metering device |
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| WO2003033168A2 (en) * | 2001-10-17 | 2003-04-24 | Musashi Engineering, Inc. | Liquid material delivering method and device therefor |
| CN203558884U (en) * | 2013-09-18 | 2014-04-23 | 宁波明泰流量设备有限公司 | High-flow liquid gas eliminator for container |
| CN204439157U (en) * | 2015-01-19 | 2015-07-01 | 上海清煜环保科技有限公司 | A kind of have the on-line monitoring equipment measuring apparatus removing bubble function |
| CN204881741U (en) * | 2015-05-12 | 2015-12-16 | 吉林大学 | Device and measurement system cool down |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769342A (en) * | 2017-03-10 | 2017-05-31 | 国家海洋技术中心 | A kind of integrated recombiner |
| CN207894908U (en) * | 2017-06-12 | 2018-09-21 | 山东龙发环保科技有限公司 | Detection device and gauge line, metering device |
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