CN218725704U - Movable automatic sampling device - Google Patents
Movable automatic sampling device Download PDFInfo
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- CN218725704U CN218725704U CN202222813358.9U CN202222813358U CN218725704U CN 218725704 U CN218725704 U CN 218725704U CN 202222813358 U CN202222813358 U CN 202222813358U CN 218725704 U CN218725704 U CN 218725704U
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Abstract
The utility model provides a portable automatic sampling device belongs to analytical instrument technical field, and it includes static water sample flow path, developments water sample flow path, sample bottle, high spacing non-contact liquid level switch and low spacing non-contact liquid level switch, and static water sample flow path and developments water sample flow path all communicate with sample bottle, and high spacing non-contact liquid level switch corresponds with the highest liquid level position of sample bottle, and low spacing non-contact liquid level switch corresponds with the minimum liquid level position of sample bottle. The utility model can realize dynamic water sampling and static water sampling, and has high automation degree and strong adaptability; just the device of the utility model has a small structure, is convenient for the staff to carry the field usage, and has strong practicability.
Description
Technical Field
The utility model belongs to the technical field of analytical instrument, a sample analytical instrument technique is related to, specifically is portable automatic sampling device.
Background
Currently, most samples for laboratory instrumentation use manual sampling methods. The sampling method directly influences the accuracy of the analysis and detection result of the instrument, particularly the analysis and detection of trace-level components in water, has very high requirement on the cleanliness of the sample, and a small amount of impurities brought in the sampling process can influence the analysis result. The manual sampling method has several disadvantages:
firstly, the inevitable needs of staff and sample bottle direct contact in the sample process, the bottle lid of sample bottle and bottleneck department all probably contact with staff's hand, cause the sample to pollute, measure inaccurately.
Secondly, the sampling amount is not easy to control, the visual inspection method is adopted for more samples and less samples, certain subjectivity is achieved, too many samples are taken, workers need to perform volume fixing again in a laboratory, and too few samples are taken, and the workers need to perform sampling again.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned sample to being used for laboratory instrument analysis that describes there is the sample contaminated and the unable accurate control's of sample volume problem through artifical sampling, the utility model provides a portable automatic sampling device.
When the device of the utility model is used, a water sample is automatically fixed to the sampling bottle, the whole process does not need the hydraulic operation of workers, and the hands of the workers are prevented from contacting the water sample to cause sample pollution; the specific technical scheme is as follows:
portable automatic sampling device, including static water sample flow path, developments water sample flow path, sample bottle, high spacing non-contact liquid level switch and low spacing non-contact liquid level switch, static water sample flow path and developments water sample flow path all communicate with the sample bottle, high spacing non-contact liquid level switch corresponds with the highest liquid level position of sample bottle, low spacing non-contact liquid level switch corresponds with the minimum liquid level position of sample bottle.
Further inject, portable automatic sampling device is still including advancing kind three-way valve and a kind three-way valve, advance kind three-way valve through static water sample flow path and a kind three-way valve intercommunication, advance kind three-way valve through dynamic water sample flow path and a kind three-way valve intercommunication, a kind three-way valve and sample bottle intercommunication, advance kind three-way valve and a kind three-way valve all to be connected with high limit non-contact liquid level switch electricity, advance kind three-way valve and a kind three-way valve all to be connected with low limit non-contact liquid level switch electricity.
Further limiting, the sample inlet three-way valve and the sample outlet three-way valve are both electronic three-way valves.
Further limited, a sample injection pump is communicated in the static water sampling flow path.
Further defined, an adjustable flow meter is communicated with the dynamic water sampling flow path.
Further inject, still communicate adjustable manometer in the developments water sample flow path, advance kind three-way valve, adjustable manometer, adjustable flowmeter and play appearance three-way valve and communicate in proper order after going to along the inflow direction of water sample certainly.
Further limited, the mobile automatic sampling device also comprises a constant temperature device, and the sampling bottle is arranged in the constant temperature device.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses portable automatic sampling device, it includes static water sampling flow path, dynamic water sampling flow path, the sampling bottle, high spacing non-contact liquid level switch and low spacing non-contact liquid level switch, extract to static water sample through static water sampling flow path, can gather the dynamic water sample that flows through dynamic water sampling flow path, can all control the flow of water sample through static water sampling flow path and dynamic water sampling flow path simultaneously, in the sampling process, can also judge the height of sampling bottle liquid level through high spacing non-contact liquid level switch, avoid the sampling bottle to overfill, the water sample overflows, contact other impurity and cause the water sample pollution; simultaneously through the reverse flow of static water sample flow path, can realize extracting the water sample in the sampling bottle for the water sample in the sampling bottle is poured, has replaced the artifical operation of pouring, avoids the water sample to be contaminated, still can judge the liquid level height of sampling bottle through low spacing non-contact liquid level switch, avoids the transition extraction, causes the damage to the sampling bottle. The utility model can realize dynamic water sampling and static water sampling, and has high automation degree and strong adaptability; just the utility model discloses a device structure is little, and the staff of being convenient for carries the field usage, and the practicality is strong.
2. The utility model discloses still including advancing kind three-way valve and a kind three-way valve, carry out the nimble switching of static water sample flow path and dynamic water sample flow path to the water sample through advancing kind three-way valve and a kind three-way valve.
3. The static water sampling flow path comprises a sample injection pump, and the sample injection pump can provide power for a water sample extraction process or a water sample pouring process.
4. The dynamic water sampling flow path comprises an adjustable flowmeter and an adjustable pressure gauge, and the pressure and the flow of the water sample can be controlled through the adjustable flowmeter and the adjustable pressure gauge.
5. The sampling bottle is arranged in the constant temperature device and used for preserving heat of the sampling bottle, controlling the water sample to be at a proper temperature, keeping the original temperature of the water sample as much as possible and preventing the inaccurate detection caused by the change of the temperature of the water sample.
Drawings
FIG. 1 is a schematic structural diagram of a mobile automatic sampling device;
the system comprises a sample inlet three-way valve, a sample inlet pump, a sample outlet three-way valve, a pressure gauge, an adjustable flowmeter, a sampling bottle, a constant temperature device, a high-limit non-contact liquid level switch and a low-limit non-contact liquid level switch, wherein the sample inlet three-way valve is 1, the sample inlet pump is 2, the sample outlet three-way valve is 3, the adjustable pressure gauge is 4, the adjustable flowmeter is 5, the sampling bottle is 6, the constant temperature device is 7, the high-limit non-contact liquid level switch is 8, and the low-limit non-contact liquid level switch is 9.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
The utility model discloses portable automatic sampling device, including static water sample flow path, developments water sample flow path, sample bottle 6, high spacing non-contact liquid level switch 8 and low spacing non-contact liquid level switch 9, static water sample flow path and developments water sample flow path all communicate with sample bottle 6, and high spacing non-contact liquid level switch 8 corresponds with the highest liquid level position of sample bottle 6, and low spacing non-contact liquid level switch 9 corresponds with the minimum liquid level position of sample bottle 6.
The utility model discloses portable automatic sampling method based on portable automatic sampling device forms, it includes following step:
if the sampling is static water sampling, the absorbed water sample enters the sampling bottle 6 through the static water sampling flow path, the flow of the water sample is controlled through the static water sampling flow path, in the sampling process, the high-limit non-contact liquid level switch 8 judges whether the liquid level of the sampling bottle 6 reaches the highest liquid level, if so, the static water sampling flow path is cut off, and the sampling is stopped;
if the dynamic water sampling is carried out, the absorbed water sample enters the sampling bottle 6 through the dynamic water sampling flow path, the flow and the pressure of the water sample are controlled through the dynamic water sampling flow path, in the sampling process, the high-limit non-contact liquid level switch 8 judges whether the liquid level of the sampling bottle 6 reaches the highest liquid level, if so, the dynamic water sampling flow path is cut off, and the sampling is stopped;
when pouring the water sample, through static water sample flow path backward flow, extract the water sample in the sample bottle 6, make the water sample pour out, at the in-process that the water sample was poured out, low spacing non-contact liquid level switch 9 judges whether the liquid level of sample bottle 6 reaches minimum liquid level, if reach minimum liquid level, then cut off static water sample flow path.
Example 1
Referring to fig. 1, the mobile automatic sampling device of this embodiment includes a sample inlet three-way valve 1, a sample outlet three-way valve 3, a static water sampling flow path, a dynamic water sampling flow path, a sampling bottle 6, a high-limit non-contact liquid level switch 8 and a low-limit non-contact liquid level switch 9, where the high-limit non-contact liquid level switch 8 corresponds to the highest liquid level position of the sampling bottle 6, and the low-limit non-contact liquid level switch 9 corresponds to the lowest liquid level position of the sampling bottle 6; the sampling three-way valve 1 is communicated with the sampling three-way valve 3 through a static water sampling flow path, the sampling three-way valve 1 is communicated with the sampling three-way valve 3 through a dynamic water sampling flow path, the sampling three-way valve 3 is communicated with the sampling bottle 6, specifically, a water inlet of the sampling three-way valve 1 is a water sample inlet, and two water outlets of the sampling three-way valve 1 are communicated, wherein one of the two water outlets is communicated with a water inlet of the static water sampling flow path, and the other water outlet is communicated with a water inlet of the dynamic water sampling flow path; the water outlet of the static water sampling flow path is communicated with one water inlet of the sample outlet three-way valve 3, the water outlet of the dynamic water sampling flow path is communicated with the other water inlet of the sample outlet three-way valve 3, and the water outlet of the sample outlet three-way valve 3 is communicated with the water inlet of the sampling bottle 6; the sample injection three-way valve 1 and the sample outlet three-way valve 3 are electrically connected with a high-limit non-contact liquid level switch 8, and the sample injection three-way valve 1 and the sample outlet three-way valve 3 are electrically connected with a low-limit non-contact liquid level switch 9.
Preferably, the sample inlet three-way valve 1 and the sample outlet three-way valve 3 are both electronic three-way valves.
The static water sampling flow path of the embodiment is communicated with a sample pump 2. Specifically, the water inlet of the sample injection pump 2 is communicated with the water outlet of the sample injection three-way valve 1, and the water outlet of the sample injection pump 2 is communicated with the inlet water of the sample outlet three-way valve 3.
The dynamic water sampling flow path of the present embodiment is communicated with an adjustable flowmeter 5. The dynamic water sampling flow path of the embodiment is also communicated with an adjustable pressure gauge 4, and the sample introduction three-way valve 1, the adjustable pressure gauge 4, the adjustable flowmeter 5 and the sample outlet three-way valve 3 are sequentially communicated from front to back along the inflow direction of the water sample. Specifically, the water inlet of the adjustable pressure gauge 4 is communicated with the water outlet of the sample injection three-way valve 1, the water outlet of the adjustable pressure gauge 4 is communicated with the water inlet of the adjustable flow meter 5, and the water outlet of the adjustable flow meter 5 is communicated with the water inlet of the sample outlet three-way valve 3.
The mobile automatic sampling device of the embodiment further comprises a constant temperature device 7, and the sampling bottle 6 is arranged in the constant temperature device 7. The sampling bottle 6 is insulated through the constant temperature device 7, so that the water sample in the sampling bottle 6 is in a proper temperature interval.
The mobile automatic sampling method formed by the mobile automatic sampling device of the embodiment comprises the following steps:
if the sampling is static water sampling, opening a sample introduction three-way valve 1 and a sample discharge three-way valve 3, enabling the sample introduction three-way valve 1 and the sample discharge three-way valve 3 to be communicated with a sample introduction pump 2, extracting a water sample through the sample introduction pump 2, enabling the water sample to enter a sampling bottle 6 along the sample introduction three-way valve 1 and the sample discharge three-way valve 3, and controlling the flow of the water sample through the sample introduction pump 2; in the sampling process, the high-limit non-contact liquid level switch 8 judges whether the liquid level of the sampling bottle 6 reaches the highest liquid level, if so, the sample introduction three-way valve 1 and the sample discharge three-way valve 3 are closed, and the sampling is stopped;
if dynamic water sampling is carried out, opening a sample introduction three-way valve 1 and a sample discharge three-way valve 3, enabling the sample introduction three-way valve 1 to be communicated with an adjustable pressure meter 4, enabling the sample discharge three-way valve 3 to be communicated with an adjustable flowmeter 5, enabling the absorbed water sample to sequentially pass through the adjustable pressure meter 4 and the adjustable flowmeter 5 to enter a sample bottle 6, respectively controlling the pressure and the flow of the water sample through the adjustable pressure meter 4 and the adjustable flowmeter 5, judging whether the liquid level of the sample bottle 6 reaches the highest liquid level by a high-limit non-contact liquid level switch 8 in the sampling process, and closing the sample introduction three-way valve 1 and the sample discharge three-way valve 3 to stop sampling if the liquid level reaches the highest liquid level;
when pouring the water sample, rotate sampling pump 2 through the direction for the water sample is reverse to be circulated, through sampling pump 2 extraction sample bottle 6 in the water sample, makes the water sample pour out, and at the in-process that the water sample was poured out, low spacing non-contact liquid level switch 9 judges whether the liquid level of sample bottle 6 reaches minimum liquid level, if reach minimum liquid level, then cut off static water sample flow path. Preventing damage to the sample vial 6 from over-extraction.
Claims (7)
1. Portable automatic sampling device, its characterized in that, including static water sample flow path, developments water sample flow path, sample bottle (6), high spacing non-contact liquid level switch (8) and low spacing non-contact liquid level switch (9), static water sample flow path and developments water sample flow path all communicate with sample bottle (6), high spacing non-contact liquid level switch (8) correspond with the highest liquid level position of sample bottle (6), low spacing non-contact liquid level switch (9) correspond with the minimum liquid level position of sample bottle (6).
2. The mobile automatic sampling device according to claim 1, further comprising a sample introduction three-way valve (1) and a sample discharge three-way valve (3), wherein the sample introduction three-way valve (1) is communicated with the sample discharge three-way valve (3) through a static water sampling flow path, the sample introduction three-way valve (1) is communicated with the sample discharge three-way valve (3) through a dynamic water sampling flow path, the sample discharge three-way valve (3) is communicated with a sample bottle (6), the sample introduction three-way valve (1) and the sample discharge three-way valve (3) are both electrically connected with the high-limit non-contact liquid level switch (8), and the sample introduction three-way valve (1) and the sample discharge three-way valve (3) are both electrically connected with the low-limit non-contact liquid level switch (9).
3. The mobile automatic sampling device according to claim 2, characterized in that the sample inlet three-way valve (1) and the sample outlet three-way valve (3) are electronic three-way valves.
4. A mobile automatic sampling device according to claim 2 or 3, characterized in that a sample pump (2) is connected to the static water sampling flow path.
5. A mobile automatic sampling device according to claim 2 or 3, wherein an adjustable flow meter (5) is connected in the dynamic water sampling flow path.
6. The mobile automatic sampling device according to claim 5, wherein the dynamic water sampling flow path is further communicated with an adjustable pressure gauge (4), and the sample inlet three-way valve (1), the adjustable pressure gauge (4), the adjustable flow meter (5) and the sample outlet three-way valve (3) are sequentially communicated from front to back along the inflow direction of the water sample.
7. The mobile automatic sampling device according to claim 6, characterized in that it further comprises a thermostat (7), the sampling bottle (6) being placed inside the thermostat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222813358.9U CN218725704U (en) | 2022-10-25 | 2022-10-25 | Movable automatic sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222813358.9U CN218725704U (en) | 2022-10-25 | 2022-10-25 | Movable automatic sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725704U true CN218725704U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222813358.9U Active CN218725704U (en) | 2022-10-25 | 2022-10-25 | Movable automatic sampling device |
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|---|---|
| CN (1) | CN218725704U (en) |
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- 2022-10-25 CN CN202222813358.9U patent/CN218725704U/en active Active
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