CN213364346U - Vacuum sampling device for water environment on-line monitoring system - Google Patents
Vacuum sampling device for water environment on-line monitoring system Download PDFInfo
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- CN213364346U CN213364346U CN202022452517.8U CN202022452517U CN213364346U CN 213364346 U CN213364346 U CN 213364346U CN 202022452517 U CN202022452517 U CN 202022452517U CN 213364346 U CN213364346 U CN 213364346U
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Abstract
A vacuum sampling device for a water environment on-line monitoring system is provided with a sample storage container and a vacuum pump; one end of the sample storage container is connected to a sampling water body through a sampling pipeline; the sampling pipeline is also connected with a cleaning pipeline by a three-way electromagnetic valve; the other end of the sample storage container is connected with a vacuum pump through a vacuum pumping pipeline; the bottom of the sample storage container is connected to the detection equipment through a sample outlet pipeline, and the sample outlet pipeline is used for providing a water body sample for the detection equipment; the bottom of the sample storage container is also connected with a waste discharge pipeline, and the waste discharge pipeline is used for discharging the cleaning waste liquid of the sample storage container. According to the technical scheme, the vacuum pump is used for sampling, and the pump body is not in contact with a water sample, so that the pollution to the water sample is reduced; the pump body is not contacted with the water body, so that the corrosion of corrosive sewage or seawater is avoided; the possibility that a water body sample enters a vacuum pump is eliminated, and the service life of the vacuum pump is ensured; can prevent the blockage of the sample storage container and ensure the originality of the water sample.
Description
Technical Field
The utility model relates to a sampling device, in particular to a vacuum sampling device for water environment on-line monitoring system.
Background
At present, a common sampling pump in the aspect of online water quality monitoring mainly comprises a submersible pump, a self-sucking pump and a peristaltic pump. While each of the three pumps has its own drawbacks:
submersible pump: the pump body is soaked in water all the time, the possibility of corrosion is inevitably increased, and the service life is reduced particularly in corrosive sewage and seawater;
self-priming pump: the pump body is in direct contact with a water sample, so that certain pollution is caused to the sample, and meanwhile, the possibility that the pump body is corroded due to long-term contact with corrosive water and seawater is increased;
a peristaltic pump: the general power is small, the conveying capacity to the water sample is limited, the running efficiency of the whole system is reduced, and the system is not suitable for sampling in a long distance.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a vacuum sampling device for water environment on-line monitoring system, the pump body contacts with the water in the solution tradition scheme, easily receives the problem of the erosion of corrosive sewage or sea water.
In order to achieve the above object, the present invention provides the following technical solutions: a vacuum sampling device for an online water environment monitoring system comprises a sample storage container and a vacuum pump; one end of the sample storage container is connected to a sampling water body through a sampling pipeline; the sampling pipeline is also connected with a cleaning pipeline by adopting a three-way electromagnetic valve; the other end of the sample storage container is connected with the vacuum pump through a vacuum pumping pipeline; the bottom of the sample storage container is connected to the detection equipment through a sample outlet pipeline, and the sample outlet pipeline is used for providing a water body sample for the detection equipment; the bottom of the sample storage container is also connected with a waste discharge pipeline, and the waste discharge pipeline is used for discharging the cleaning waste liquid of the sample storage container.
As a preferable scheme of the vacuum sampling device for the water environment online monitoring system, the sampling pipeline is connected to the top end of the sample storage container, and the tail end of the sampling pipeline extends to the bottom of the sample storage container; the vacuumizing pipeline is connected to the top end of the sample storage container, and the tail end of the vacuumizing pipeline is located in the upper area of the inner space of the sample storage container.
As a preferable scheme of the vacuum sampling device for the water environment on-line monitoring system, one end of the waste discharge pipeline is positioned in the bottom area of the inner space of the sample storage container; the end of the sample outlet pipeline, which is positioned in the sample storage container, is higher than the end of the waste discharge pipeline, which is positioned in the sample storage container.
As a preferable scheme of the vacuum sampling device for the water environment online monitoring system, the cleaning pipeline is connected with a tap water storage tank.
As a preferred scheme of the vacuum sampling device for the water environment online monitoring system, a first electric valve is connected to the vacuumizing pipeline.
As a preferred scheme of the vacuum sampling device for the water environment online monitoring system, a second electric valve is connected to the sample outlet pipeline.
As a preferred scheme of the vacuum sampling device for the water environment on-line monitoring system, a third electric valve is connected to the waste discharge pipeline.
The utility model is provided with a sample storage container and a vacuum pump; one end of the sample storage container is connected to a sampling water body through a sampling pipeline; the sampling pipeline is also connected with a cleaning pipeline by a three-way electromagnetic valve; the other end of the sample storage container is connected with a vacuum pump through a vacuum pumping pipeline; the bottom of the sample storage container is connected to the detection equipment through a sample outlet pipeline, and the sample outlet pipeline is used for providing a water body sample for the detection equipment; the bottom of the sample storage container is also connected with a waste discharge pipeline, and the waste discharge pipeline is used for discharging the cleaning waste liquid of the sample storage container. According to the technical scheme, the vacuum pump is used for sampling, and the pump body is not in contact with a water sample, so that the pollution to the water sample is reduced; the pump body is not contacted with the water body, so that the corrosion of corrosive sewage or seawater is avoided; the possibility that a water body sample enters a vacuum pump is eliminated, and the service life of the vacuum pump is ensured; can prevent the blockage of the sample storage container and ensure the originality of the water sample.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural view of a vacuum sampling device for an online water environment monitoring system provided in an embodiment of the present invention.
In the figure: 1. a sample storage container; 2. a vacuum pump; 3. a sampling pipeline; 4. a three-way electromagnetic valve; 5. cleaning a pipeline; 6. a vacuum pumping pipeline; 7. a sample outlet pipeline; 8. a detection device; 9. a waste discharge pipeline; 10. a storage tank for tap water; 11. a first electrically operated valve; 12. a second electrically operated valve; 13. a third electrically operated valve.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a vacuum sampling device for an online water environment monitoring system is provided, which comprises a sample storage container 1 and a vacuum pump 2; one end of the sample storage container 1 is connected to a sampling water body through a sampling pipeline 3; the sampling pipeline 3 is also connected with a cleaning pipeline 5 by a three-way electromagnetic valve 4; the other end of the sample storage container 1 is connected with the vacuum pump 2 through a vacuum pumping pipeline 6; the bottom of the sample storage container 1 is connected to a detection device 8 through a sample outlet pipeline 7, and the sample outlet pipeline 7 is used for providing a water body sample for the detection device 8; the bottom of the sample storage container 1 is also connected with a waste discharge pipeline 9, and the waste discharge pipeline 9 is used for discharging the cleaning waste liquid of the sample storage container 1.
Specifically, the cleaning pipeline 5 is connected with a tap water storage tank 10. The first electric valve 11 is connected to the vacuum pumping pipeline 6. The sample outlet pipeline 7 is connected with a second electric valve 12. The waste discharge pipeline 9 is connected with a third electric valve 13. The technical scheme based on the application realizes the following processes of automatic sampling and automatic cleaning:
the first electric valve 11 is opened, the valves of the second electric valve 12, the third electric valve 13 and the three-way electromagnetic valve 4 are closed, the vacuum pump 2 is started, and after the vacuum pump 2 runs for a set time, the first electric valve 11 is closed, and the vacuum pump 2 is closed;
secondly, opening the three-way electromagnetic valve 4, communicating the sampling pipeline 3 with the sample storage container 1, pushing the sample storage container 1 to start sampling under the push of the difference of internal and external pressure, and closing the three-way electromagnetic valve 4 after sampling is finished;
(III) after the water sample is kept still in the sample storage container 1 for a set time, opening the second electric valve 12, and starting sampling by the detection equipment 8;
(IV) after the sampling is finished, closing the second electric valve 12, opening the third electric valve 13 and the first electric valve 11 (keeping the pressure balance), and beginning to discharge waste;
and (V) closing the third electric valve 13 after the waste discharge is finished, starting the vacuum pump 2, and closing the second electric valve 12 and the vacuum pump 2 after the vacuum pump 2 operates for a set time. Opening the three-way electromagnetic valve 4 to communicate the tap water storage tank 10 with the sample storage container 1, and cleaning the sample storage container 1;
and (VI) discharging waste after the cleaning is finished, and opening the third electric valve 13 and the first electric valve 11 (keeping the pressure balance) to start discharging waste.
In one embodiment of the vacuum sampling device for the water environment online monitoring system, the sampling pipeline 3 is connected to the top end of the sample storage container 1, and the tail end of the sampling pipeline 3 extends to the bottom of the sample storage container 1; the vacuumizing pipeline 6 is connected to the top end of the sample storage container 1, and the tail end of the vacuumizing pipeline 6 is located in the upper area of the inner space of the sample storage container 1. The delivery port of sample pipeline 3 is lower at the inside position of storage appearance container 1, confirms that the water sample is steady ascending in storage appearance container 1 to effectual avoiding splashing, evacuation pipeline 6 just inserts to storing up in appearance container 1 simultaneously, is favorable to going on of evacuation, avoids the water sample to enter into evacuation pipeline 6 simultaneously.
In one embodiment of the vacuum sampling device for the water environment online monitoring system, one end of the waste discharge pipeline 9 is positioned at the bottom region of the inner space of the sample storage container 1; the end of the sample outlet pipeline 7 in the sample storage container 1 is higher than the end of the waste discharge pipeline 9 in the sample storage container 1. Waste discharge pipeline 9 just inserts to storing up in the appearance container 1 from storing up appearance container 1 bottom, is favorable to storing up the inside waste liquid of appearance container 1 and thoroughly discharges, and the position of going out appearance pipeline 7 in storing up appearance container 1 exceeds waste discharge pipeline 9 simultaneously, avoids the sediment impurity among the water sample to get into out in the appearance pipeline 7.
The utility model is provided with a sample storage container 1 and a vacuum pump 2; one end of the sample storage container 1 is connected to a sampling water body through a sampling pipeline 3; the sampling pipeline 3 is also connected with a cleaning pipeline 5 by a three-way electromagnetic valve 4; the other end of the sample storage container 1 is connected with a vacuum pump 2 through a vacuum pumping pipeline 6; the bottom of the sample storage container 1 is connected to a detection device 8 through a sample outlet pipeline 7, and the sample outlet pipeline 7 is used for providing a water body sample for the detection device 8; the bottom of the sample storage container 1 is also connected with a waste discharge pipeline 9, and the waste discharge pipeline 9 is used for discharging the cleaning waste liquid of the sample storage container 1. The delivery port of sample pipeline 3 is lower at the inside position of storage appearance container 1, confirms that the water sample is steady ascending in storage appearance container 1 to effectual avoiding splashing, evacuation pipeline 6 just inserts to storing up in appearance container 1 simultaneously, is favorable to going on of evacuation, avoids the water sample to enter into evacuation pipeline 6 simultaneously. Waste discharge pipeline 9 just inserts to storing up in the appearance container 1 from storing up appearance container 1 bottom, is favorable to storing up the inside waste liquid of appearance container 1 and thoroughly discharges, and the position of going out appearance pipeline 7 in storing up appearance container 1 exceeds waste discharge pipeline 9 simultaneously, avoids the sediment impurity among the water sample to get into out in the appearance pipeline 7. According to the technical scheme, the vacuum pump 2 is adopted for sampling, and the pump body is not in contact with a water sample, so that the pollution to the water sample is reduced; the pump body is not contacted with the water body, so that the corrosion of corrosive sewage or seawater is avoided; the possibility that a water body sample enters the vacuum pump 2 is eliminated, and the service life of the vacuum pump 2 is ensured; can prevent the sample storage container 1 from being blocked and ensure the originality of the water sample.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A vacuum sampling device for an online water environment monitoring system is characterized by comprising a sample storage container (1) and a vacuum pump (2); one end of the sample storage container (1) is connected to a sampling water body through a sampling pipeline (3); the sampling pipeline (3) is also connected with a cleaning pipeline (5) by a three-way electromagnetic valve (4); the other end of the sample storage container (1) is connected with the vacuum pump (2) through a vacuum pumping pipeline (6); the bottom of the sample storage container (1) is connected to a detection device (8) through a sample outlet pipeline (7), and the sample outlet pipeline (7) is used for providing a water body sample for the detection device (8); the bottom of the sample storage container (1) is also connected with a waste discharge pipeline (9), and the waste discharge pipeline (9) is used for discharging the cleaning waste liquid of the sample storage container (1).
2. The vacuum sampling device for the online water environment monitoring system according to claim 1, wherein the sampling pipeline (3) is connected to the top end of the sample storage container (1), and the tail end of the sampling pipeline (3) extends to the bottom of the sample storage container (1); the vacuumizing pipeline (6) is connected to the top end of the sample storage container (1), and the tail end of the vacuumizing pipeline (6) is located in the upper area of the inner space of the sample storage container (1).
3. The vacuum sampling device for the online monitoring system of the water environment as claimed in claim 1, characterized in that one end of the waste pipeline (9) is positioned at the bottom region of the inner space of the sample storage container (1); one end of the sample outlet pipeline (7) in the sample storage container (1) is higher than one end of the waste discharge pipeline (9) in the sample storage container (1).
4. The vacuum sampling device for the water environment on-line monitoring system according to claim 1, characterized in that the cleaning pipeline (5) is connected with a tap water storage tank (10).
5. The vacuum sampling device for the online water environment monitoring system according to claim 1, wherein a first electric valve (11) is connected to the vacuum pipeline (6).
6. The vacuum sampling device for the online monitoring system of the water environment according to claim 1, characterized in that a second electric valve (12) is connected to the sampling pipeline (7).
7. The vacuum sampling device for the water environment on-line monitoring system as claimed in claim 1, characterized in that a third electric valve (13) is connected to the waste pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022452517.8U CN213364346U (en) | 2020-10-29 | 2020-10-29 | Vacuum sampling device for water environment on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022452517.8U CN213364346U (en) | 2020-10-29 | 2020-10-29 | Vacuum sampling device for water environment on-line monitoring system |
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| CN213364346U true CN213364346U (en) | 2021-06-04 |
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| CN202022452517.8U Active CN213364346U (en) | 2020-10-29 | 2020-10-29 | Vacuum sampling device for water environment on-line monitoring system |
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