CN209841668U - Multi-parameter water quality detector - Google Patents
Multi-parameter water quality detector Download PDFInfo
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- CN209841668U CN209841668U CN201920475302.2U CN201920475302U CN209841668U CN 209841668 U CN209841668 U CN 209841668U CN 201920475302 U CN201920475302 U CN 201920475302U CN 209841668 U CN209841668 U CN 209841668U
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Abstract
The utility model discloses a multi-parameter water quality testing appearance: the quantitative circulating pipe assembly comprises at least two quantitative circulating pipes which are arranged in parallel and have different constant volume values. The utility model discloses a ration ring canal subassembly has the ration ring canal of a plurality of different fixed volumes value, consequently can select suitable ration ring canal according to the detection parameter of difference, does not need adjusting device can realize the accuracy and joins in marriage liquid, and convenient operation joins in marriage liquid accuracy moreover, and equipment can guarantee higher reliability when the multi-parameter is examined.
Description
Technical Field
The utility model relates to a water quality testing technique and equipment field, concretely relates to multi-parameter water quality testing appearance.
Background
With the development of science and technology, the living standard of people is higher and higher, but the improvement of material life is accompanied with the aggravation of environmental pollution, especially water quality pollution, so that water quality analysis is one of the important work of environmental monitoring.
The traditional environmental water quality detection work mainly takes manual sampling and laboratory instrument analysis. Although the analysis means in the laboratory is complete, the monitoring in the laboratory has the defects of low monitoring frequency, large sampling error, scattered monitoring data, incapability of reflecting the pollution change condition in real time and the like. With the enhancement of environmental awareness of people and the perfection and strictification of laws and regulations of corresponding policies and laws of the state, the concepts of high-quality instruments, micro-scale design, multi-parameter simultaneous measurement, modular thought and network informatization become the development trend of new-generation instruments.
Patent document 1 discloses a multiparameter water quality detector, which employs a plurality of digestion devices, and can synchronously detect a plurality of parameters of a water sample, but the digestion devices share a quantitative ring pipe device, and the quantitative ring pipes can only carry out liquid preparation according to a specific proportion, while the water quality detector can detect different parameters, and the required liquid preparation ratio has some differences, such as the detection of COD and total nitrogen, and the detection of ammonia nitrogen and total phosphorus. At the moment, the device has the defects that the detection result is not accurate enough, or the quantitative ring pipe needs to be replaced, and inconvenience is brought to multi-parameter detection.
Patent document 1: CN 107831121A.
SUMMERY OF THE UTILITY MODEL
In order to improve the accuracy and the suitability of multi-parameter water quality detector, the utility model provides a multi-parameter water quality detector.
The utility model adopts the technical scheme as follows:
a multi-parameter water quality detector comprises:
the multi-way electromagnetic valve comprises a metering port, a first liquid outlet port, a second liquid outlet port, an air port and a container port, wherein the metering port is a public port, and the first liquid outlet port, the second liquid outlet port, the air port and the container port are split ports;
the metering device comprises a peristaltic pump, a liquid level sensor, a three-way valve and a quantitative ring pipe assembly which are sequentially communicated, wherein the quantitative ring pipe assembly is communicated with a metering port, the other end of the peristaltic pump is emptied, the common end of the three-way valve is communicated with the liquid level sensor, the normally closed end of the three-way valve is communicated with the quantitative ring pipe assembly, and the normally open end of the three-way valve is used for waste discharge;
the digestion pipe assembly is characterized in that one end of a pressure relief port of the digestion pipe assembly is emptied, one end of a liquid inlet is provided with a second three-way valve, a common end of the second three-way valve is communicated with the digestion pipe assembly, a normally closed end is communicated with the first liquid outlet port and the second liquid outlet port, and a normally open end is used for waste discharge;
the programmable controller is electrically connected with the multi-way electromagnetic valve, the first liquid level sensor, the first three-way valve, the second three-way valve, the first switch valve, the second switch valve, the peristaltic pump, the digestion pipe assembly and the quantitative ring pipe assembly;
the quantitative ring pipe assembly comprises at least two quantitative ring pipes which are arranged in parallel and have different constant volume values.
The utility model has the advantages that: the utility model discloses a ration ring canal subassembly has the ration ring canal of a plurality of different fixed volumes value, consequently can select suitable ration ring canal according to the detection parameter of difference, does not need adjusting device can realize the accuracy and joins in marriage liquid, and convenient operation joins in marriage liquid accuracy moreover, and equipment can guarantee higher reliability when the multi-parameter is examined.
Preferably: the quantitative ring pipe assembly comprises a first quantitative ring pipe, a second quantitative ring pipe, a third three-way valve and a fourth three-way valve which are arranged in parallel, wherein a common end of the third three-way valve is communicated with the first three-way valve, a normally closed end is communicated with the first quantitative ring pipe, a normally open end is communicated with the second quantitative ring pipe, a common end of the fourth three-way valve is communicated with the metering port, a normally closed end is communicated with the first quantitative ring pipe, and a normally open end is communicated with the second quantitative ring pipe; and the third three-way valve and the fourth three-way valve are electrically connected with the programmable controller.
Preferably: the first quantitative ring pipe and the second quantitative ring pipe have the same diameter and the length ratio is 3: 4.
preferably: the first quantitative ring pipe is communicated with the second quantitative ring pipe through a common end of the first quantitative ring pipe, the second quantitative ring pipe is communicated with the second quantitative ring pipe through a normally closed end of the first quantitative ring pipe, and the third quantitative ring pipe is communicated with the second quantitative ring pipe through a normally opened end of the second quantitative ring pipe; and the fifth three-way valve is electrically connected with the programmable controller.
Preferably: clear up the pipe assembly including clearing up pipe, heating unit, temperature sensor, color comparison unit and radiating unit, still including a ooff valve and No. two ooff valves, No. one ooff valve one end intercommunication the common port, the other end intercommunication of No. two three-way valves clear up the inlet of pipe, No. two ooff valve one end intercommunication clear up the pressure release mouth of pipe, the other end evacuation.
Preferably: one end of the second switch valve for emptying is communicated with a second liquid level sensor, and the second liquid level sensor is electrically connected with the programmable controller.
Preferably: the digestion pipe comprises a main heating section and a colorimetric section from bottom to top, the heating unit is a heating wire wound on the peripheral wall of the digestion pipe, the heating wire on the main heating section is denser than the heating wire on the colorimetric section, and the colorimetric unit is arranged at the position of the colorimetric section.
Preferably: the digestion device further comprises a six-way valve, wherein the common end of the six-way valve is communicated with the second three-way valve, and the normally closed end and the normally open end are respectively communicated with one digestion pipe assembly.
Preferably: the first liquid level sensor is provided with a high liquid level sensing point and a low liquid level sensing point.
Preferably: the liquid inlet assembly (400) comprises a liquid inlet pipe (L3), a return pipe (L4), a liquid outlet pipe (L5) and a seven-way valve (V7), the common end of the seven-way valve (V7) is communicated with the liquid inlet pipe (L3), the normally closed end is communicated with the liquid outlet pipe (L5), the normally open end is communicated with the return pipe (L4), the other end of the liquid inlet pipe (L3) is connected with a water source to be measured, and the other end of the return pipe (L4) discharges waste; the liquid inlet assembly (400) further comprises a water sample bottle (5A), a temporary storage bottle (5B) and an eight-way valve (V8), the common end of the eight-way valve (V8) is communicated with one container port (4) through a liquid inlet main pipe (L6), the normally closed end is communicated with the water sample bottle (5A) through a standby pipe (L7), the normally open end is communicated with the temporary storage bottle (5B) through a liquid pumping pipe (L8), and the temporary storage bottle (5B) receives the incoming water of the liquid outlet pipe (L5); a third switch valve (H3) and a fourth switch valve (H4) are respectively arranged on the liquid inlet pipe (L3) and the return pipe (L4); a pipeline Filter (FI) and a liquid inlet pump (P2) are arranged on the liquid inlet pipe (L3); the temporary storage bottle (5B) is provided with a third liquid level sensor (G3) for detecting a high liquid level; the temporary storage bottle (5B) is provided with a liquid discharge pipe (L9), and a fifth switch valve (H5) is arranged on the liquid discharge pipe (L9); the seven three-way valve (V7), the eight three-way valve (V8), the three-way switch valve (H3), the four-way switch valve (H4), the five-way switch valve (H5), the three-way liquid level sensor (G3) and the liquid inlet pump (P2) are electrically connected with the programmable controller (300).
Drawings
Fig. 1 is a schematic diagram of a pipeline according to an embodiment of the present invention.
Fig. 2 is a pipeline schematic diagram of the digestion pipe assembly in the embodiment of the present invention.
Fig. 3 is a schematic diagram of the piping of the quantitative collar assembly according to an embodiment of the present invention.
Fig. 4 is a schematic view of an digestion tube assembly in an embodiment of the invention (digestion tube omitted).
Fig. 5 is a schematic view of the digestion tube in the embodiment of the present invention.
Fig. 6 is a schematic diagram of a pipeline according to a second embodiment of the present invention.
Fig. 7 is a schematic diagram of a pipeline according to a third embodiment of the present invention.
Fig. 8 is a schematic diagram of a pipeline according to a fourth embodiment of the present invention.
Fig. 9 is a schematic diagram of a pipeline of a liquid inlet assembly according to a fifth embodiment of the present invention.
A multi-way electromagnetic valve D, a first liquid outlet port a, a second liquid outlet port b, a metering port c, an air port 1, a container port 2 ~ 8, a peristaltic pump P1, a first liquid level sensor G1, a second liquid level sensor G2, a first three-way valve V1, a second three-way valve V2, a fifth three-way valve V5, a first buffer section L1 and a second buffer section L2,
the digestion tube assembly 100, the digestion tube 101, the heating unit 102, the temperature sensor 103, the colorimetric unit 104, the heat dissipation unit 105, the main heating section 106, the colorimetric section 107,
a quantitative loop component 200, a first quantitative loop 201, a second quantitative loop 202, a third three-way valve V3, a fourth three-way valve V4, a first switch valve H1, a second switch valve H2,
the programmable controller (300) is provided with a programmable logic controller,
the liquid sampling device comprises a liquid inlet assembly 400, a liquid inlet pipe L3, a return pipe L4, a liquid outlet pipe L5, a liquid inlet header pipe L6, a standby pipe L7, a liquid pumping pipe L8, a liquid outlet pipe L9, a seven-model three-way valve V7, an eight-model three-way valve V8, a water sample bottle 5A, a temporary storage bottle 5B, a three-model switch valve H3, a four-model switch valve H4, a five-model switch valve H5, a pipeline filter FI, a liquid inlet pump P2 and a three-model liquid level sensor G3.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
The present embodiment is an improvement made on the basis of patent document 1, and therefore only the improvement is described here, and the same is not described in detail.
In an embodiment, as shown in fig. 1 ~, the multi-parameter water quality detector comprises a multi-way electromagnetic valve D, a peristaltic pump P1, a first liquid outlet port b, a second liquid outlet port b, an air port 1 and a container port 2 ~ which are sequentially communicated, a first three-way valve V1 and a quantitative loop assembly 200, wherein the metering port c is a common port, the first liquid outlet port a, the second liquid outlet port b, the air port 1 and the container port 2 ~ are split ports, the peristaltic pump P1, the first liquid level sensor G1, the first three-way valve V1 and the quantitative loop assembly 200 are sequentially communicated, the quantitative loop assembly 200 is communicated with the metering port c, the other end of the peristaltic pump P1 is emptied, the common end of the first three-way valve V1 is communicated with the first liquid level sensor G1, a normally closed end is communicated with the quantitative loop assembly 200 and a normally closed end is communicated with the waste discharge assembly 200, the normally closed end of the waste tube assembly 200, the digestion tube assembly 100, one end of a pressure relief port of the digestion tube assembly 100 is emptied, one end of the pressure relief port is provided with the second three-way valve V2, a common end of the second three-way valve V2 is communicated with the normally closed end of the constant loop assembly 200, the common end of the constant discharge tube assembly 200, the common end of the digestion tube assembly 200, the digestion tube assembly is communicated with a digestion tube assembly, the digestion tube assembly 200, the digestion tube assembly 200, the digestion tube assembly can be accurately controlled by a digestion device, the digestion device can accurately and the digestion device can be controlled by a digestion device without the quantitative loop subassembly, the digestion device 2, the digestion device can be.
In the embodiment, as shown in fig. 1 and 3: the quantitative ring pipe assembly 200 comprises a first quantitative ring pipe 201 and a second quantitative ring pipe 202 which are arranged in parallel, and further comprises a third three-way valve V3 and a fourth three-way valve V4, the common end of the third three-way valve V3 is communicated with the first three-way valve V1, the normally closed end is communicated with the first quantitative ring pipe 201, the normally open end is communicated with the second quantitative ring pipe 202, the common end of the fourth three-way valve V4 is communicated with the metering port c, the normally closed end is communicated with the first quantitative ring pipe 201, and the normally open end is communicated with the second quantitative ring pipe 202; the third three-way valve V3 and the fourth three-way valve V4 are electrically connected with the programmable controller 300. The third three-way valve V3 and the fourth three-way valve V4 of the embodiment are linked under the control of the programmable controller 300, either the first quantitative ring pipe 201 is communicated with the second quantitative ring pipe 202, the first quantitative ring pipe 201 and the second quantitative ring pipe 202 can be independently prepared with liquid, and can also be combined after being independently prepared with liquid, so that the three-way valve V3 and the fourth three-way valve V4 can be combined into a plurality of liquid preparation ratios, and the flexibility is good.
In the embodiment, as shown in fig. 1 and 3: the first quantitative ring pipe 201 and the second quantitative ring pipe 202 have the same diameter and the length ratio of 3: 4. typically, the length of the quantification loop 202 required for COD, total nitrogen and ammonia nitrogen, total phosphorus detection is 3: 4, therefore, the number one dosing loop 201 and the number two dosing loop 202 are selected from 3: a ratio of 4 will suffice for most measurement parameters.
In the embodiment, as shown in fig. 2, 4 and 5: clear up pipe assembly 100 including clear up pipe 101, heating unit 102, temperature sensor 103, color comparison unit 104 and radiating unit 105, still including a ooff valve H1 and No. two ooff valves H2, No. one ooff valve H1 one end intercommunication No. two three-way valve V2's common port, other end intercommunication clear up the inlet of pipe 101, No. two ooff valve H2 one end intercommunication clear up the pressure release mouth of pipe 101, the other end evacuation. The digestion tube assembly 100 of the present embodiment can rapidly heat and cool a sample, and can efficiently detect the sample.
In the example, as shown in fig. 5: the digestion tube 101 comprises a main heating section 106 and a colorimetric section 107 from bottom to top, the heating unit 102 is a heating wire wound on the outer circumferential wall of the digestion tube 101, the heating wire on the main heating section 106 is denser than that on the colorimetric section 107, and the colorimetric unit 104 is arranged at the position of the colorimetric section 107. This embodiment structure, main heating section 106 and color comparison section 107 are separated each other, can avoid the heater strip to lead to the fact the interference on the sight to the color comparison section 107, guarantee the accuracy of color comparison.
In the examples, as shown in fig. 1: the first liquid level sensor G1 has two liquid level sensing points. The low level point of the first level sensor G1 of the embodiment is used as a stop signal of the peristaltic pump, and the high level point is used for the emergency stop quotation of the equipment.
In a second embodiment, as shown in FIG. 6: the quantitative loop pipe further comprises a fifth three-way valve V5, wherein the common end of the fifth three-way valve V5 is communicated with the second three-way valve V2, the normally closed end is communicated with the first liquid outlet port a, the normally open end is communicated with the second liquid outlet port b, a first buffer section L1 is formed by a pipeline between the fifth three-way valve V5 and the first liquid outlet port a, a second buffer section L2 is formed by a pipeline between the fifth three-way valve V5 and the second liquid outlet port b, the volume of the first buffer section L1 is consistent with that of the first quantitative loop pipe 201, and the volume of the second buffer section L2 is consistent with that of the second quantitative loop pipe 202; the five-way valve V5 is electrically connected to the programmable controller 300. In this embodiment, the buffer sections L1 and L2 correspond to the quantitative loop 201 and the quantitative loop 202 to form a temporary storage section for quantitatively extracting and quantitatively injecting the mixed liquid in the digestion tube assembly 100, and the working principle is the same as that described in patent document 1.
In a third embodiment, as shown in FIG. 7: one emptying end of the second switch valve H2 is communicated with a second liquid level sensor G2, and the second liquid level sensor G2 is electrically connected with the programmable controller 300. The second liquid level sensor G2 of the embodiment can prevent the sample leakage caused by the fault of the peristaltic pump P1, and when the liquid level exceeds the limit, the programmable controller 300 controls the peristaltic pump P1 to stop.
In a fourth embodiment, as shown in fig. 8: and the digestion system also comprises a six-way valve V6, wherein the common end of the six-way valve V6 is communicated with the second-way valve V2, and the normally closed end and the normally open end are respectively communicated with one digestion tube assembly 100. In this embodiment, the digestion tube assemblies 100 are actually configured as in patent document 1, and further, by replacing the six-way three-way valve V6 with a multi-way solenoid valve, more sets of digestion tube assemblies 100 can be arranged in parallel.
In the fifth embodiment, as shown in fig. 9: the liquid inlet assembly 400 comprises a liquid inlet pipe L3, a return pipe L4, a liquid outlet pipe L5 and a seven-way valve V7, wherein the common end of the seven-way valve V7 is communicated with the liquid inlet pipe L3, the normally closed end is communicated with the liquid outlet pipe L5, the normally open end is communicated with the return pipe L4, the other end of the liquid inlet pipe L3 is connected with a water source to be measured, and the other end of the return pipe L4 discharges waste; the liquid inlet assembly 400 further comprises a water sample bottle 5A, a temporary storage bottle 5B and an eight-way valve V8, wherein a common end of the eight-way valve V8 is communicated with one container port 4 through a liquid inlet main pipe L6, a normally closed end is communicated with the water sample bottle 5A through a standby pipe L7, a normally opened end is communicated with the temporary storage bottle 5B through a liquid pumping pipe L8, and the temporary storage bottle 5B receives the incoming water from the liquid outlet pipe L5; a third switch valve H3 and a fourth switch valve H4 are respectively arranged on the liquid inlet pipe L3 and the return pipe L4; a pipeline filter FI and a liquid inlet pump P2 are arranged on the liquid inlet pipe L3; the temporary storage bottle 5B is provided with a third liquid level sensor G3 for detecting a high liquid level; the temporary storage bottle 5B is provided with a liquid discharge pipe L9, and a fifth switch valve H5 is arranged on the liquid discharge pipe L9; the seven-way valve V7, the eight-way valve V8, the three-way switch valve H3, the four-way switch valve H4, the five-way switch valve H5, the three-way liquid level sensor G3 and the liquid inlet pump P2 are electrically connected with the programmable controller 300. The external water source that awaits measuring of feed liquor subassembly 400 of this embodiment, can last take a sample to the water source that awaits measuring, and then can realize the continuation or the periodic detection to sewage, need not to advance at every turn and make a manual sample, has guaranteed the instantaneity and the accuracy that detect. But also has two kinds of feed liquor modes of water sample bottle 5A, bottle 5B of keeping in, has fine adaptability, can use under various operating mode environment.
It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A multi-parameter water quality detector comprises:
the multi-way electromagnetic valve (D) comprises a metering port (c), a first liquid outlet port (a), a second liquid outlet port (b), an air port (1) and a container port (2 ~ 8), wherein the metering port (c) is a public port, and the first liquid outlet port (a), the second liquid outlet port (b), the air port (1) and the container port (2 ~ 8) are split ports;
the metering device comprises a peristaltic pump (P1), a first liquid level sensor (G1), a first three-way valve (V1) and a quantitative ring pipe assembly (200), wherein the quantitative ring pipe assembly (200) is communicated with a metering port (c), the other end of the peristaltic pump (P1) is emptied, and the common end of the first three-way valve (V1) is communicated with the first liquid level sensor (G1), a normally closed end is communicated with the quantitative ring pipe assembly (200), and a normally open end is used for waste discharge;
the digestion pipe assembly (100) is characterized in that one end of a pressure relief port of the digestion pipe assembly (100) is exhausted, one end of a liquid inlet is provided with a second three-way valve (V2), a common end of the second three-way valve (V2) is communicated with the digestion pipe assembly (100), a normally closed end is communicated with a first liquid outlet port (a) and a second liquid outlet port (b), and the normally open end is used for exhausting waste;
the programmable controller (300) is electrically connected with the multi-way electromagnetic valve (D), the first liquid level sensor (G1), the first three-way valve (V1), the second three-way valve (V2), the first switch valve (H1), the second switch valve (H2), the peristaltic pump (P1), the digestion tube assembly (100) and the quantitative ring tube assembly (200);
the method is characterized in that:
the quantitative circular pipe assembly (200) comprises at least two quantitative circular pipes which are arranged in parallel and have different constant volume values.
2. The multi-parameter water quality detector according to claim 1, characterized in that:
the quantitative ring pipe component (200) comprises a first quantitative ring pipe (201), a second quantitative ring pipe (202), a third three-way valve (V3) and a fourth three-way valve (V4), wherein the first quantitative ring pipe (201) and the second quantitative ring pipe (202) are arranged in parallel, the common end of the third three-way valve (V3) is communicated with the first three-way valve (V1), the normally closed end of the third three-way valve (V3) is communicated with the first quantitative ring pipe (201), the normally open end of the fourth three-way valve (V4) is communicated with the metering port (c), the normally closed end of the fourth three-way valve (V4) is communicated with the first quantitative ring pipe (201), and the normally open;
the third three-way valve (V3) and the fourth three-way valve (V4) are electrically connected with the programmable controller (300).
3. The multi-parameter water quality detector according to claim 2, characterized in that: the first quantitative ring pipe (201) and the second quantitative ring pipe (202) have the same diameter and the length ratio of 3: 4.
4. the multi-parameter water quality detector according to claim 2, characterized in that:
the liquid level meter further comprises a fifth three-way valve (V5), the common end of the fifth three-way valve (V5) is communicated with the second three-way valve (V2), the normally closed end is communicated with the first liquid outlet port (a), the normally open end is communicated with the second liquid outlet port (b), a first buffer section (L1) is formed by a pipeline between the fifth three-way valve (V5) and the first liquid outlet port (a), a second buffer section (L2) is formed by a pipeline between the fifth three-way valve (V5) and the second liquid outlet port (b), the first buffer section (L1) is consistent with the volume of the first quantitative loop (201), and the second buffer section (L2) is consistent with the volume of the second quantitative loop (202);
the five-way valve (V5) is electrically connected with the programmable controller (300).
5. The multi-parameter water quality detector according to claim 1, characterized in that: it clears up pipe assembly (100) including clearing up pipe (101), heating unit (102), temperature sensor (103), colorimetric unit (104) and radiating element (105), still including ooff valve (H1) and No. two ooff valves (H2), No. one ooff valve (H1) one end intercommunication the common port, the other end intercommunication of No. two three-way valves (V2) clear up the inlet of pipe (101), No. two ooff valves (H2) one end intercommunication clear up the pressure release mouth of pipe (101), the other end evacuation.
6. The multi-parameter water quality detector according to claim 5, characterized in that: one emptying end of the second switch valve (H2) is communicated with a second liquid level sensor (G2), and the second liquid level sensor (G2) is electrically connected with the programmable controller (300).
7. The multi-parameter water quality detector according to claim 5, characterized in that: it includes from bottom to top main heating section (106) and color comparison section (107) to clear up pipe (101), heating element (102) are for winding up the heater strip of clearing up pipe (101) periphery wall, the heater strip on main heating section (106) is denser than the heater strip on color comparison section (107), color comparison unit (104) set up compare color comparison section (107) position department.
8. The multi-parameter water quality detector according to claim 1, characterized in that: and the digestion system also comprises a six-way valve (V6), wherein the common end of the six-way valve (V6) is communicated with the second-way valve (V2), and the normally closed end and the normally open end are respectively communicated with one digestion pipe assembly (100).
9. The multi-parameter water quality detector according to claim 1, characterized in that: the first liquid level sensor (G1) has two liquid level sensing points of high and low.
10. The multi-parameter water quality detector according to claim 1, characterized in that: the liquid inlet assembly (400) comprises a liquid inlet pipe (L3), a return pipe (L4), a liquid outlet pipe (L5) and a seven-way valve (V7), the common end of the seven-way valve (V7) is communicated with the liquid inlet pipe (L3), the normally closed end is communicated with the liquid outlet pipe (L5), the normally open end is communicated with the return pipe (L4), the other end of the liquid inlet pipe (L3) is connected with a water source to be measured, and the other end of the return pipe (L4) discharges waste;
the liquid inlet assembly (400) further comprises a water sample bottle (5A), a temporary storage bottle (5B) and an eight-way valve (V8), the common end of the eight-way valve (V8) is communicated with one container port (4) through a liquid inlet main pipe (L6), the normally closed end is communicated with the water sample bottle (5A) through a standby pipe (L7), the normally open end is communicated with the temporary storage bottle (5B) through a liquid pumping pipe (L8), and the temporary storage bottle (5B) receives the incoming water of the liquid outlet pipe (L5);
a third switch valve (H3) and a fourth switch valve (H4) are respectively arranged on the liquid inlet pipe (L3) and the return pipe (L4); a pipeline Filter (FI) and a liquid inlet pump (P2) are arranged on the liquid inlet pipe (L3); the temporary storage bottle (5B) is provided with a third liquid level sensor (G3) for detecting a high liquid level; the temporary storage bottle (5B) is provided with a liquid discharge pipe (L9), and a fifth switch valve (H5) is arranged on the liquid discharge pipe (L9);
the seven three-way valve (V7), the eight three-way valve (V8), the three-way switch valve (H3), the four-way switch valve (H4), the five-way switch valve (H5), the three-way liquid level sensor (G3) and the liquid inlet pump (P2) are electrically connected with the programmable controller (300).
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| CN201920475302.2U CN209841668U (en) | 2019-04-10 | 2019-04-10 | Multi-parameter water quality detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916833A (en) * | 2019-04-10 | 2019-06-21 | 江苏聚聪环境技术有限公司 | Multi-parameter water quality detector |
| CN113514651A (en) * | 2021-06-15 | 2021-10-19 | 杭州谱育科技发展有限公司 | Gas sampling device and method |
-
2019
- 2019-04-10 CN CN201920475302.2U patent/CN209841668U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916833A (en) * | 2019-04-10 | 2019-06-21 | 江苏聚聪环境技术有限公司 | Multi-parameter water quality detector |
| CN113514651A (en) * | 2021-06-15 | 2021-10-19 | 杭州谱育科技发展有限公司 | Gas sampling device and method |
| CN113514651B (en) * | 2021-06-15 | 2024-05-14 | 杭州谱育科技发展有限公司 | Gas sampling apparatus and method |
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