CN201307073Y - High-accuracy quantitative sampling device - Google Patents
High-accuracy quantitative sampling device Download PDFInfo
- Publication number
- CN201307073Y CN201307073Y CNU2008201560299U CN200820156029U CN201307073Y CN 201307073 Y CN201307073 Y CN 201307073Y CN U2008201560299 U CNU2008201560299 U CN U2008201560299U CN 200820156029 U CN200820156029 U CN 200820156029U CN 201307073 Y CN201307073 Y CN 201307073Y
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- Prior art keywords
- solenoid valve
- cup
- accuracy
- measuring glass
- sampling device
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Abstract
The utility model discloses a high-accuracy quantitative sampling device, which comprises a dosing cup and a solenoid valve, wherein the bottom of the dosing cup is fixed on a solenoid valve base; a sample outlet formed on the bottom of the dosing cup is directly communicated with the valve port of the solenoid valve; and the closing/opening of the valve port can be controlled directly by the head of a solenoid valve push rod. By integrating the dosing cup with the solenoid valve, the quantitative sampling device has reduced occupation area, and can obviate the bad influence of remaining samples in a hose, thereby greatly improving the sampling accuracy and ensuring the accuracy and authenticity of data analyzed by an online automatic titrator. Particularly, the cup body structure with thin upper section and wide lower section can further improve the sampling accuracy (up to 0.2 percent), and can meet the requirement for high-accuracy sampling of the online automatic titrator. In addition, the high-accuracy quantitative sampling device also has the advantages of simple structure, easy maintenance, low use cost, etc.
Description
Technical field
The utility model relates to a kind of quantitative sampling device, specifically, relates to a kind of high precision quantitative sampling device that is used for on-line automatic titrator.
Background technology
At present, the sampling mode of on-line automatic titrator has: 1) directly sample is added in the measuring cup by peristaltic pump; 2) at first sample is added in the Measuring glass by peristaltic pump, unnecessary sample overflow is fallen, add in the measuring cup then by the overflow vent that is located on the Measuring glass.Because there is the timing sampling poor repeatability in peristaltic pump, and exist service time long more, poorer and working time of its accuracy and repeatability is long also can to make defective such as pump line distortion, therefore directly sample is added the problem of the sampling mode existence sampling poor accuracy of measuring cup by peristaltic pump, be difficult to satisfy the titrimetric requirement of high precision.Existing quantitative sampling device reason Measuring glass and solenoid valve two parts that Measuring glass is set are formed, connect with flexible pipe between the two, though improved the accuracy of sampling by the second metering of Measuring glass, but because of in flexible pipe between the two, being detained sample solution, these residual solutions have influenced the precision of sampling, can not satisfy the titrimetric requirement of high precision; Residual solution in the pipe can produce cross influence in addition, makes the data distortion of analysis.Therefore, market in urgent need solves the high-accuracy sampling problem of on-line automatic titrator.
The utility model content
The purpose of this utility model is to be to provide a kind of high precision quantitative sampling device, to solve the high-accuracy sampling requirement of on-line automatic titrator.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
The high precision quantitative sampling device that the utility model provides, comprise Measuring glass and solenoid valve, described Measuring glass comprises cup, injection port, outlet and overflow vent, it is characterized in that: described Measuring glass bottom is fixed on the solenoid valve seat, the outlet of described Measuring glass is located at the bottom of Measuring glass and directly is communicated with the solenoid valve valve port, and described solenoid valve valve port is by logical the closing of head control of solenoid valve push rod.
The cup of described Measuring glass is made up of last cup and lower cup body, and the injection port of Measuring glass and overflow vent are located on the cup, and the outlet of Measuring glass is located at the bottom of lower cup body.
The described cup of going up is provided with dashpot.
The above-mentioned diameter of going up the diameter of cup less than lower cup body.
Compared with prior art, the beneficial effects of the utility model are as follows:
1) since Measuring glass of the present utility model and electromagnetic valve group lump together, therefore the utility model had both been saved taking up room of quantitative sampling device, the flexible pipe that has solved the existing apparatus existence again is detained the problem that influences that sample produces, improve the precision of sampling greatly, guaranteed the accuracy and the authenticity of the analysis data of on-line automatic titrator.
2) make by on-deformable material owing to Measuring glass is many, thereby can make quantitative repeatability not be subjected to the influence of length service time, especially up-thin-low-thick upper and lower cup body structure, can further improve sampling precision, make sampling precision can reach 2/1000ths, can satisfy the high-accuracy sampling requirement of on-line automatic titrator fully.
3) the utility model is simple in structure, safeguards easily, greatly reduces use cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1. cup; 1-1. last cup; 1-2. lower cup body; 2. injection port; 3. outlet; 4. overflow vent; 5. solenoid valve seat; 6. solenoid valve valve port; 7. solenoid valve push rod; 8. dashpot.
Embodiment
Below in conjunction with drawings and Examples the utility model is done further detailed, complete explanation:
Embodiment
As shown in Figure 1: the high precision quantitative sampling device that the utility model provides, comprise Measuring glass and solenoid valve, described Measuring glass comprises cup 1, injection port 2, outlet 3 and overflow vent 4, wherein: the cup 1 of Measuring glass is made up of last cup 1-1 and lower cup body 1-2, the injection port 2 of Measuring glass and overflow vent 4 are located on the cup 1-1, and the outlet 3 of Measuring glass is located at the bottom of lower cup body 1-2.The bottom of Measuring glass lower cup body 1-2 is fixed on the solenoid valve seat 5, and the outlet 3 that is located at lower cup body 1-2 bottom directly is communicated with solenoid valve valve port 6, and described solenoid valve valve port 6 is directly controlled logical closing by the head of solenoid valve push rod 7.
The diameter that the above cup 1-1 of the utility model is provided with dashpot 8 and goes up cup 1-1 is an optimization design scheme less than the diameter of lower cup body 1-2.
When on-line automatic titration, sample is not directly to enter to participate in titration in the measuring cup, but at first enter in the Measuring glass, overflow vent by Measuring glass can fall unnecessary sample overflow, play further quantitative effect, especially when Measuring glass be the injection port of up-thin-low-thick shape, Measuring glass and overflow vent when being located at the structure of the thin last cup of diameter, can further play the accurate quantification effect, sampling precision is improved; In addition, the utility model directly is communicated with solenoid valve valve port 6 by the outlet 3 that is fixed on the lower cup body 1-2 of Measuring glass bottom on the solenoid valve seat 5 and be located at lower cup body 1-2 bottom, Measuring glass and electromagnetic valve group are lumped together, directly control the keying of flow passage by the head of solenoid valve push rod 7, thereby the flexible pipe that has solved the existing apparatus existence is detained the problem that influences that sample produces, improved the precision of sampling again greatly, guarantee the accuracy and the authenticity of the analysis data of on-line automatic titrator, but also saved taking up room of quantitative sampling device.
Claims (4)
1. high precision quantitative sampling device, comprise Measuring glass and solenoid valve, described Measuring glass comprises cup, injection port, outlet and overflow vent, it is characterized in that: described Measuring glass bottom is fixed on the solenoid valve seat, the outlet of described Measuring glass is located at the bottom of Measuring glass and directly is communicated with the solenoid valve valve port, and described solenoid valve valve port is directly controlled logical closing by the head of solenoid valve push rod.
2. high precision quantitative sampling device according to claim 1 is characterized in that: the cup of described Measuring glass is made up of last cup and lower cup body, and the injection port of Measuring glass and overflow vent are located on the cup, and the outlet of Measuring glass is located at the bottom of lower cup body.
3. high precision quantitative sampling device according to claim 2 is characterized in that: the described cup of going up is provided with dashpot.
4. according to claim 2 or 3 described high precision quantitative sampling devices, it is characterized in that: the described diameter of going up the diameter of cup less than lower cup body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201560299U CN201307073Y (en) | 2008-11-27 | 2008-11-27 | High-accuracy quantitative sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201560299U CN201307073Y (en) | 2008-11-27 | 2008-11-27 | High-accuracy quantitative sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307073Y true CN201307073Y (en) | 2009-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201560299U Expired - Fee Related CN201307073Y (en) | 2008-11-27 | 2008-11-27 | High-accuracy quantitative sampling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201307073Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102607881A (en) * | 2012-04-10 | 2012-07-25 | 东华理工大学 | Quantitative sampling device for soil thermoluminescence measuring sample |
| CN103197620A (en) * | 2013-02-28 | 2013-07-10 | 重庆大学 | Precise sampling control system |
| CN103217509A (en) * | 2013-03-25 | 2013-07-24 | 苏州聚阳环保科技有限公司 | Optical quantitation device |
| CN109374798A (en) * | 2018-10-16 | 2019-02-22 | 安徽皖仪科技股份有限公司 | Multi-tube composite sampling valve and its application method |
| CN111912676A (en) * | 2020-06-22 | 2020-11-10 | 安徽创华自控仪表设备有限公司 | Self-sealing type quantitative sampling valve for liquid conveying pipeline |
-
2008
- 2008-11-27 CN CNU2008201560299U patent/CN201307073Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537421A (en) * | 2011-12-23 | 2012-07-04 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102537421B (en) * | 2011-12-23 | 2013-06-19 | 上海仪电科学仪器股份有限公司 | High precision three-way valve |
| CN102607881A (en) * | 2012-04-10 | 2012-07-25 | 东华理工大学 | Quantitative sampling device for soil thermoluminescence measuring sample |
| CN103197620A (en) * | 2013-02-28 | 2013-07-10 | 重庆大学 | Precise sampling control system |
| CN103217509A (en) * | 2013-03-25 | 2013-07-24 | 苏州聚阳环保科技有限公司 | Optical quantitation device |
| CN109374798A (en) * | 2018-10-16 | 2019-02-22 | 安徽皖仪科技股份有限公司 | Multi-tube composite sampling valve and its application method |
| CN111912676A (en) * | 2020-06-22 | 2020-11-10 | 安徽创华自控仪表设备有限公司 | Self-sealing type quantitative sampling valve for liquid conveying pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI LEICI CHUANGYI INSTRUMENT CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111018 Address after: 200233 No. 7, Cangwu Road, Shanghai, Xuhui District Co-patentee after: Shanghai Leici Chuangyi Instrument Co., Ltd. Patentee after: Shanghai Co., Ltd of Fine Scientific Instruments Address before: 200233 No. 7, Cangwu Road, Shanghai, Xuhui District Patentee before: Shanghai Co., Ltd of Fine Scientific Instruments |
|
| ASS | Succession or assignment of patent right |
Owner name: INESA SCIENTIFIC INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI PRECISION + SCIENTIFIC INSTRUMENT CO., LTD. Effective date: 20120713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200233 XUHUI, SHANGHAI TO: 201805 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120713 Address after: 201805 Shanghai City, Anting, Miquan Road, No. 111, room 2, building 101, room Co-patentee after: Shanghai Leici Chuangyi Instrument Co., Ltd. Patentee after: INESA Scientific Instrument Co., Ltd. Address before: 200233 No. 7, Cangwu Road, Shanghai, Xuhui District Co-patentee before: Shanghai Leici Chuangyi Instrument Co., Ltd. Patentee before: Shanghai Co., Ltd of Fine Scientific Instruments |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20171127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |