Multi-parameter water quality detection liquid path system

Abstract

The utility model belongs to the technical field of water quality detection, and discloses a multi-parameter water quality detection liquid path system, which comprises a water storage device used for storing purified water; the two-way valve is used for controlling the conveying of the purified water in the water storage device; one end of the three-way pipe is used for receiving the purified water conveyed by the two-way valve, and the other two ends of the three-way pipe are communicated with an injector assembly and a liquid storage ring respectively; and one end of the three-way valve is connected with the other end of the liquid storage ring. Purified water is adopted as carrier liquid to extract other reagents, a glass sample injector in the injection pump assembly always extracts the purified water, the service life of the injection pump assembly is long, the volume of a pipeline is increased through the liquid storage ring, the liquid storage ring is formed by winding a plurality of circles of plastic pipes, the volume can be adjusted, the injection pump assembly system intelligently distributes sample liquid, and the operation is convenient. The injection pump assembly is shared for power and quantification, and the device is simple in assembly structure, low in cost and easy to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality detection, in particular to a multi-parameter water quality detection liquid path system. Background Art

[0002] With the development of urbanization and industrialization, water pollution has occurred and the environmental ecology has been damaged. Various pollution factors have caused the deterioration of water quality. As social environmental awareness continues to strengthen, the demand for efficient and accurate water quality testing continues to increase.

[0003] Currently, most instruments on the market are single-factor systems. Multi-parameter factor detection requires the integration of multiple single-factor systems. The equipment is complex, occupies a large volume and is expensive, which cannot meet market demand and has a relatively low cost-performance ratio. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a multi-parameter water quality detection fluid path system.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-parameter water quality detection liquid circuit system, a water reservoir, the water reservoir is used to store pure water; a two-way valve, the two-way valve is used to control the delivery of pure water in the water reservoir; a three-way pipe, one end of the three-way pipe is used to receive the pure water delivered by the two-way valve, and the other two ends of the three-way pipe are respectively connected to a syringe assembly and a liquid storage ring; a three-way valve, one end of the three-way valve is connected to the other end of the liquid storage ring, and the other two ends of the three-way valve are respectively connected to a common pipeline one and a common pipeline two; a twelve-way valve, one end of the twelve-way valve is connected to the other end of the common pipeline one, and one port of the twelve-way valve is connected to a digestion tank assembly through the two-way valve; an eight-way valve, one end of the eight-way valve is connected to the other end of the common pipeline two.

[0006] Preferably, one port of the eight-way valve is communicated with the digestion tank assembly through a two-way valve, and the other port of the eight-way valve is communicated with the twelve-way valve through the two-way valve and the digestion tank assembly.

[0007] Preferably, the other ten ports of the twelve-way valve are connected to waste liquid, air, standard solution, sulfite reagent A, sulfite reagent B, sulfite reagent C, silicate reagent A, silicate reagent B, silicate reagent C and water sample respectively.

[0008] Preferably, the other ports of the eight-way valve are connected to the standard solution, water sample, phosphate A, phosphate B, waste liquid and air respectively.

[0009] Preferably, the syringe assembly includes a glass injector and a piston movably connected to the glass injector, and the liquid storage ring is formed by winding multiple turns of plastic tube.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The utility model adopts pure water as carrier liquid to extract other reagents, and through process control, ensures that pure water is always extracted from the glass sampler in the injection pump assembly, thereby extending the service life of the injection pump assembly. The pipeline volume is increased by the liquid storage ring, and the liquid storage ring is wound by multiple turns of plastic tube, and the volume can be adjusted. Through flow control, the injection pump assembly intelligently distributes the sample liquid, and detection and testing are carried out separately, which is efficient and fast. The injection pump assembly is shared for power and quantitative purposes, and the assembly structure is simple, the cost is low, and it is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the liquid circuit system of the utility model;

[0013] Figure 2 This is a schematic diagram of the second structure of the liquid circuit system of the present utility model.

[0014] In the figure: 1. Water reservoir; 2. Two-way valve; 3. Three-way pipe; 4. Syringe assembly; 5. Liquid storage ring; 6. Three-way valve; 7. Common pipeline 1; 8. Twelve-way valve; 9. Digestion tank assembly; 10. Common pipeline 2; 11. Eight-way valve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] Example 1

[0017] like Figure 1 As shown, the utility model provides a multi-parameter water quality detection liquid circuit system, a water reservoir 1, the water reservoir 1 is used to store pure water; a two-way valve 2, the two-way valve 2 is used to control the delivery of pure water in the water reservoir 1; a three-way pipe 3, one end of the three-way pipe 3 is used to receive the pure water delivered by the two-way valve 2, and the other two ends of the three-way pipe 3 are respectively connected to the syringe assembly 4 and the liquid storage ring 5; a three-way valve 6, one end of the three-way valve 6 is connected to the other end of the liquid storage ring 5, and the other two ends of the three-way valve 6 are respectively connected to the common pipeline 1 7 and the common pipeline 2 10; a twelve-way valve 8, one end of the twelve-way valve 8 is connected to the other end of the common pipeline 1 7, and one port of the twelve-way valve 8 is connected to the digestion tank assembly 9 through the two-way valve 2; an eight-way valve 11, one end of the eight-way valve 11 is connected to the other end of the common pipeline 2 10.

[0018] One port of the eight-way valve 11 is connected to the digestion tank assembly 9 through the two-way valve 2, and the other port of the eight-way valve 11 is connected to the twelve-way valve 8 through the two-way valve 2 and the digestion tank assembly 9. The other ten ports of the twelve-way valve 8 are respectively connected to waste liquid, air, standard solution, sulfite reagent A, sulfite reagent B, sulfite reagent C, silicate reagent A, silicate reagent B, silicate reagent C and water sample. The other six ports of the eight-way valve 11 are respectively connected to standard solution, water sample, phosphate A, phosphate B (silicate reagent D), waste liquid and air. The syringe assembly 4 includes a glass injector and a piston movably connected to the glass injector, and the liquid storage ring 5 is formed by multiple turns of plastic tube.

[0019] The above scheme is adopted: various liquids, reagents, and air are extracted by pushing the piston of the syringe assembly 4 up and down. The glass sampler in the syringe assembly 4 first extracts pure water from the water reservoir 1 as a driving force. That is, during various extraction actions in the glass sampler of the syringe assembly 4, there is always pure water inside. Air is quantitatively extracted into the common pipe 1 7 and the common pipe 2 10 to isolate the contact between the reagent and the pure water and reduce the possibility of cross contamination. In addition, the program design will pre-rinse and empty and clean after extraction to ensure that the corresponding reagent liquid is extracted without affecting the subsequent extraction of other reagent liquids.

[0020] By extracting various reagents into the corresponding digestion tank assembly 9, digestion analysis is performed, and the concentration value of the water sample to be tested is calculated according to ultraviolet spectrophotometry. The three-way valve 6 is used to switch the call of the common pipeline 1 7 and the common pipeline 2 10. Based on this multi-parameter water quality detection liquid circuit system, a certain number of valves can be flexibly matched to detect multiple factors;

[0021] When the three-way valve 6 is opened, the liquid storage ring 5 is connected to the common pipeline 1 7, and a solenoid valve port is opened on the twelve-way valve 8, the reagent is drawn into the common pipeline 1 through the syringe assembly 4. It is worth noting that before and after the reagent is drawn, a section of air is drawn to isolate it to prevent the reagent from contacting the pure water in the injection tube and causing contamination. Then the two-way valve 2 on the digestion tank assembly 9 is opened, and the syringe assembly injects the reagent into the digestion tank assembly 9, followed by digestion analysis and detection of the concentration.

[0022] By providing three digestion tank assemblies 9, adding a certain number of three-way valves 6, switching the syringe assembly 4 to open the reagent channel, and then coordinating a corresponding number of twelve-way valves 8 and digestion tank assemblies 9, more factors can be detected.

[0023] Example 2

[0024] like Figure 2As shown, the utility model provides a multi-parameter water quality detection liquid circuit system, which has two three-way valves 6. The three ends of one three-way valve 6 are respectively connected to the liquid storage ring 5, the first eight-way valve 11 and the other three-way valve 6, and the other two ends of the other three-way valve 6 are respectively connected to the two eight-way valves 11;

[0025] One port of the first eight-way valve 11 is connected to the digestion tank assembly 9 through the two-way valve 2, and the other seven ports of the eight-way valve 11 are connected to the waste liquid, air, standard solution, sulfite reagent A, sulfite reagent B, sulfite reagent C, and water sample respectively;

[0026] The other two eight-way valves 11 are connected to the digestion tank assembly 9 through the two-way valve 2. One port of one of the eight-way valves 11 is connected to the digestion tank assembly 9 through the two-way valve 2. The other six ports of one of the eight-way valves 11 are respectively connected to the standard solution, water sample, phosphate A, phosphate B, waste liquid and air, and the other seven ports of the other eight-way valve 11 are respectively connected to the waste liquid, air, standard solution, silicate reagent A, silicate reagent B, silicate reagent C and water sample.

[0027] The above scheme is adopted: this liquid circuit is equipped with corresponding eight-way valves 11 according to the number of detection factors, and the three-way valve 6 is used to flexibly switch the common pipeline to achieve the purpose of extracting quantitative samples of the corresponding detection factors, thereby detecting their concentrations. By providing three digestion tank components 9, by adding a certain number of three-way valves 6, switching the syringe component 4 to pump the reagent channel, and then matching a corresponding number of valves (which can be eight-way valves or multi-way valves, the specific number depends on the type of reagents required for the chemical reaction of the detection factors, and equipped with corresponding valves for digestion reactions after adding reagents) and digestion tank components 9, more factors can be detected.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-parameter water quality detection fluid path system, characterized by: A water reservoir (1), wherein the water reservoir (1) is used to store pure water; A two-way valve (2), the two-way valve (2) being used to control the delivery of pure water in the water reservoir (1); A three-way pipe (3), one end of which is used to receive the purified water delivered by the two-way valve (2), and the other two ends of which are respectively connected to the syringe assembly (4) and the liquid storage ring (5); A three-way valve (6), one end of the three-way valve (6) is connected to the other end of the liquid storage ring (5), and the other two ends of the three-way valve (6) are respectively connected to a common pipeline 1 (7) and a common pipeline 2 (10); a twelve-way valve (8), one end of the twelve-way valve (8) being in communication with the other end of the common pipeline (7), and one port of the twelve-way valve (8) being connected to a digestion tank assembly (9) via a two-way valve (2); An eight-way valve (11), one end of the eight-way valve (11) is connected to the other end of the second common pipeline (10).

2. The multi-parameter water quality detection fluid path system according to claim 1, characterized in that: One port of the eight-way valve (11) is communicated with the digestion tank assembly (9) via the two-way valve (2), and the other port of the eight-way valve (11) is communicated with the twelve-way valve (8) via the two-way valve (2) and the digestion tank assembly (9).

3. The multi-parameter water quality detection fluid path system according to claim 1, characterized in that: The other ten ports of the twelve-way valve (8) are connected to waste liquid, air, standard solution, sulfite reagent A, sulfite reagent B, sulfite reagent C, silicate reagent A, silicate reagent B, silicate reagent C and water sample respectively.

4. The multi-parameter water quality detection fluid path system according to claim 1, characterized in that: The other six ports of the eight-way valve (11) are connected to the standard solution, water sample, phosphate A, phosphate B, waste liquid and air respectively.

5. The multi-parameter water quality detection fluid path system according to claim 1, characterized in that: The syringe assembly (4) comprises a glass injector and a piston movably connected to the glass injector, and the liquid storage ring (5) is formed by winding a plurality of turns of plastic tube.

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