CN211954839U - Novel water sample sampling detection device - Google Patents
Novel water sample sampling detection device Download PDFInfo
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- CN211954839U CN211954839U CN202020609438.0U CN202020609438U CN211954839U CN 211954839 U CN211954839 U CN 211954839U CN 202020609438 U CN202020609438 U CN 202020609438U CN 211954839 U CN211954839 U CN 211954839U
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Abstract
The utility model discloses a novel water sample sampling detection device, including multidirectional valve, valve pipe, the peristaltic pump of putting through in proper order, install measurement detection module on the valve pipe, measurement detection module is connected with auxiliary circuit, signal conditioning circuit. The valve pipe is a polytetrafluoroethylene pipe with the diameter of 2-4 mm. The metering detection module comprises an infrared emission module and an infrared receiving module which are respectively positioned on two opposite sides of the valve pipe, the infrared emission module and the infrared receiving module are integrated in the same device, and a bayonet used for passing through the valve pipe is arranged in the middle of the device. The utility model discloses a water sample sampling detection device adopts the peristaltic pump to begin the sampling through the multiway valve, and the peristaltic pump stops sampling when the metering module detects that polytetrafluoroethylene pipe has liquid to flow in, and the valve pipe volume between multiway valve and the metering module is quantitative volume, because the internal diameter of valve pipe is very little, the error of sampling volume is little, therefore the sampling precision is higher; the work anti-interference performance of the infrared detection is strong, and the stability is good.
Description
Technical Field
The utility model relates to a water sample field of sampling, in particular to novel water sample sampling detect device.
Background
The water sampling detection refers to the detection of the volume of a collected sample, and along with the increasing stricter national standard, the requirement on the miniaturization of the volume in the market is higher and higher for the sampling precision. Most of water sample collection and detection devices common to environmental protection instruments in the market adopt a sampling frame and a glass tube device for sampling and detection, and the device has the advantages of low technical difficulty and convenience in realization. However, the device has the disadvantages of large volume, low precision and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: in order to solve the problems of the prior art, a novel water sample sampling and detecting device is provided.
The technical scheme of the utility model is that:
the utility model provides a novel water sample sampling detection device, includes multidirectional valve, valve pipe, the peristaltic pump that puts through in proper order, install measurement detection module on the valve pipe, measurement detection module is connected with auxiliary circuit, signal conditioning circuit.
Preferably, the valve tube is a polytetrafluoroethylene tube with a diameter of 2-4 mm.
Preferably, the metering detection module comprises an infrared emission module and an infrared receiving module which are respectively positioned at two opposite sides of the valve pipe, the infrared emission module and the infrared receiving module are integrated in the same device, and a bayonet used for passing through the valve pipe is arranged in the middle of the device.
Preferably, the auxiliary circuit provides a working power supply for the input and the output of the metering detection module, and the working current and the working voltage of the metering detection module are matched.
Preferably, the signal conditioning circuit comprises an amplifying and filtering module, and the amplifying and filtering module is used for amplifying and filtering the output signal of the metering and detecting module and converting the output signal into a standard signal which can be identified by the acquisition equipment.
The utility model has the advantages that:
1. the utility model discloses a water sample sampling detection device adopts the peristaltic pump to begin the sampling through the multiway valve, and the peristaltic pump stops the sampling when metering module detects that polytetrafluoroethylene pipe has liquid to flow in, and the valve pipe volume between to the metering module from the multiway valve is quantitative volume promptly, because the internal diameter of valve pipe is very little, and the error of sampling volume is little, and consequently the sampling precision is higher.
2. The utility model discloses a water sample sampling detection device adopts infrared detection polytetrafluoroethylene intraductal to have or not liquid, and infrared can detect weak object, and work interference immunity is strong, and job stabilization nature is good.
Drawings
The invention will be further described with reference to the following drawings and examples:
FIG. 1 is a schematic structural diagram of the water sampling and detecting device of the present invention;
FIG. 2 is an electrical block diagram of a water sampling and detecting device;
FIG. 3 is a schematic view of a metrology inspection module installation;
FIG. 4 is a circuit schematic of the metering detection module.
Detailed Description
Example (b):
as shown in figure 1, the utility model discloses a water sample sampling detection device, including multidirectional valve 1, valve pipe 2, the peristaltic pump 3 that put through in proper order, valve pipe 1 is diameter 2-4 mm's polytetrafluoroethylene pipe, installs measurement detection module 4 on the valve pipe, measurement detection module is connected with auxiliary circuit, signal conditioning circuit, as shown in figure 2. The utility model has the characteristics of detect sensitively high, the mistake error rate is low, and its structure is small and exquisite simultaneously, and is with low costs.
As shown in fig. 3, the metering detection module 4 includes an infrared emitting module 41 and an infrared receiving module 42 respectively located at two opposite sides of the valve tube 2. The infrared transmitting module and the infrared receiving module are integrated in the same device, and a bayonet used for passing through the valve pipe is arranged in the middle of the device. The infrared transmitting module 41 transmits infrared rays, the infrared receiving module 42 obtains different illumination intensities according to the shielding condition of liquid in the middle valve tube, and the detection module has the characteristics of capability of detecting weak objects, strong work interference resistance and good work stability.
The utility model discloses a water sample sampling detection device adopts the peristaltic pump to begin the sampling through the multiway valve, and the peristaltic pump stops the sampling when metering module detects that polytetrafluoroethylene pipe has liquid to flow in, and the valve pipe volume between to the metering module from the multiway valve is quantitative volume promptly, because the internal diameter of valve pipe is very little, and the error of sampling volume is little, and consequently the sampling precision is higher.
As shown in fig. 4, the auxiliary circuit provides an operating power supply for the input and output of the metering detection module, and matches the operating current and voltage of the metering detection module.
The signal conditioning circuit comprises an amplifying and filtering module, and can convert necessary operations such as amplifying and filtering and the like on signals into standard signals which can be identified by acquisition equipment, so that the acquisition of the external equipment is facilitated.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a novel water sample sampling detection device which characterized in that, is including the multidirectional valve, valve pipe, the peristaltic pump that put through in proper order, install measurement detection module on the valve pipe, measurement detection module is connected with auxiliary circuit, signal conditioning circuit.
2. The water sampling and detecting device according to claim 1, wherein the valve tube is a polytetrafluoroethylene tube with an inner diameter of 2-4 mm.
3. The water sampling and detecting device according to claim 2, wherein the metering and detecting module comprises an infrared emitting module and an infrared receiving module which are respectively positioned at two opposite sides of the valve pipe, the infrared emitting module and the infrared receiving module are integrated in the same device, and a bayonet for passing through the valve pipe is arranged in the middle of the device.
4. The water sampling and detecting device according to claim 3, wherein the auxiliary circuit provides an operating power supply for the input and output of the metering and detecting module to match the operating current and voltage of the metering and detecting module.
5. The water sampling and detecting device according to claim 2, wherein the signal conditioning circuit comprises an amplifying and filtering module, and the amplifying and filtering operation is performed on the output signal of the metering and detecting module, and the output signal is converted into a standard signal which can be identified by the collecting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609438.0U CN211954839U (en) | 2020-04-22 | 2020-04-22 | Novel water sample sampling detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609438.0U CN211954839U (en) | 2020-04-22 | 2020-04-22 | Novel water sample sampling detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211954839U true CN211954839U (en) | 2020-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020609438.0U Active CN211954839U (en) | 2020-04-22 | 2020-04-22 | Novel water sample sampling detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211954839U (en) |
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2020
- 2020-04-22 CN CN202020609438.0U patent/CN211954839U/en active Active
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