Flow Path Components and Water Quality Analyzers

Abstract

The present invention discloses a flow path component and a water quality analyzer. The flow path component includes a manifold and a plurality of three-way solenoid valves; the manifold includes a first plate body and a second plate body installed in a stacked manner; a plurality of through hole groups are provided on the first plate body, each through hole group includes a first hole, a second hole and a third hole respectively connected to a normally open interface, a common interface and a normally closed interface of a three-way solenoid valve; the second plate body is provided with a plurality of guide structures, the number of which is one less than the number of through hole groups and is used to connect the through hole groups in series; each guide structure is connected between the first hole and the second hole of the two through hole groups; the second plate body is provided with a fourth hole connected between the second hole not connected to the guide structure and the fluid power component, a fifth hole connected between the first hole not connected to the guide structure and the reaction device, and a sixth hole the same in number as the number of through hole groups and connected to the third hole. The flow path component of the present invention can effectively improve the accuracy of detection by a water quality analyzer.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection equipment, and in particular to a flow path component and a water quality analyzer. Background Art

[0002] Nutrients are the material basis necessary for the growth of marine phytoplankton. The different concentrations and compositions of nutrients in seawater affect the primary productivity of the ocean, regulate the community structure of phytoplankton, and thus affect the structure of the marine ecosystem. Therefore, it is necessary to monitor the content of nutrients in seawater to regulate the marine ecological environment, but traditional online monitoring instruments (i.e., water quality analyzers) can generally only monitor one parameter and cannot meet the requirements of multi-parameter monitoring.

[0003] Based on this, a multi-parameter online monitoring analyzer for monitoring water quality has appeared on the market. The design of a water quality monitoring pipeline in the existing multi-parameter online monitoring analyzer is as follows: Figure 1 and Figure 2 As shown, a plurality of through holes 011 are arranged on the common pipeline 01, some of which are connected to the sample injection tube 02, and the other through holes 011 are connected to the detection tube 03. When testing, pure water and sample liquid need to be used for Figure 1 and Figure 2 The pipeline shown is cleaned and rinsed, and then tested. However, when this structure is cleaned or rinsed, the cleaning liquid or rinsing liquid can only clean the specific common pipeline 01 and the connection end of the injection tube 02 and the connection end of the common pipeline 01 and the detection tube 03, but cannot effectively clean the connection ends of the common pipeline 01 and all the injection tubes 02 and the connection ends of the common pipeline 01 and all the detection tubes 03. There will be impurities left, which will eventually lead to inaccurate test data and inability to accurately judge the marine water quality; in addition, this water quality monitoring pipeline occupies a relatively large three-dimensional space, which is not conducive to the miniaturization and flattening of the online monitoring analyzer, and the reliability of the online analyzer is also relatively low. Summary of the invention

[0004] The embodiments of the present invention provide a flow path component and a water quality analyzer, aiming to at least solve the problems of inaccurate detection data due to residues left after pipeline cleaning in existing online monitoring analyzers, and the large three-dimensional space occupied by the pipelines, which is not conducive to miniaturization and flattening of the online analyzer.

[0005] To achieve the above purpose, the technical solution adopted by the embodiment of the present invention is as follows:

[0006] A flow path assembly for a water quality analyzer, including a manifold and a plurality of three-way solenoid valves;

[0007] Each of the three-way solenoid valves includes a normally open interface, a common interface and a normally closed interface;

[0008] The busbar includes a first plate body and a second plate body stacked and mounted on the first plate body;

[0009] The first plate body has a first side surface and a second side surface opposite to the first side surface, and a plurality of through hole groups are provided from the first side surface to the second side surface, each of the through hole groups is connected to one of the three-way solenoid valves, and each of the through hole groups includes a first hole connected to the normally open interface, a second hole connected to the common interface, and a third hole connected to the normally closed interface;

[0010] The second plate body has a third side surface that is in contact with the second side surface and a fourth side surface that is opposite to the third side surface; the second plate body is provided with a plurality of flow-guiding structures for connecting the through-hole groups in series in sequence; the number of the plurality of flow-guiding structures is one less than the number of the through-hole groups, and one end of each of the flow-guiding structures is connected to the first hole of one group of the through-hole groups, and the other end is connected to the second hole of another group of the through-hole groups; the second plate body is penetrated by a fourth hole, a fifth hole and a sixth hole whose number is the same as the number of the through-hole groups from the third side surface to the fourth side surface, one end of the fourth hole is used to connect to the fluid power component, and the other end is connected to the second hole that is not connected to the flow-guiding structure; one end of the fifth hole is used to connect to the reaction device, and the other end is connected to the first hole that is not connected to the flow-guiding structure, and each of the sixth holes is connected to one of the third holes.

[0011] In some possible implementations, the plurality of guide structures are guide grooves opening toward the third side surface, the number of the guide grooves is one less than the number of the through hole groups, and each of the guide grooves is respectively connected in series with the first hole of one through hole group and the second hole of another through hole group; or,

[0012] The multiple guide structures include a guide structure and a guide groove opening toward the third side surface, the number of the guide structures is at least one, and the sum of the number of the guide structures and the number of the guide grooves is one less than the number of the through hole groups, each of the guide structures includes a first guide groove, a second guide groove and a connecting tube, one end of the first guide groove is connected to the first hole of one group of the through hole groups, and the other end is connected to the connecting tube, one end of the second guide groove is connected to the second hole of another group of the through hole groups, and the other end is connected to the connecting tube.

[0013] In some possible embodiments, the busbar has a first end and a second end opposite to the first end, the first side surface and the second side surface extend from the first end to the second end respectively, the first hole, the second hole and the third hole of each group of the through hole groups are spaced apart along a straight line between the first end and the second end, and the second hole of each group of the through hole groups is located between the first hole and the third hole.

[0014] In some possible implementations, the plurality of through hole groups are distributed on the first plate in a plurality of rows.

[0015] In some possible implementations, the guide structure between any two adjacent rows of through hole groups extends along an oblique straight line trajectory.

[0016] In some possible implementations, the plurality of through hole groups are distributed on the first plate in a plurality of rows and two columns.

[0017] In some possible embodiments, in one column of the multiple groups of through holes in the multiple rows and two columns, the first hole, the second hole, and the third hole are arranged in sequence from the first end to the second end; and in another column of the multiple groups of through holes, the first hole, the second hole, and the third hole are arranged in sequence from the second end to the first end.

[0018] In some possible implementations, the plurality of through hole groups are distributed in eight rows and two columns.

[0019] In some possible embodiments, the multiple sixth holes include a pure water connection hole for introducing pure water, a sample connection hole for introducing sample liquid, a waste liquid connection hole for discharging waste liquid, a UV digestion connection hole for connecting to a UV digestion device, a mixing connection hole for connecting to a mixing device, a colorimetric connection hole for connecting to a colorimetric component, and a plurality of reagent connections connected to the reagent holding device.

[0020] Accordingly, the present invention provides a water quality analyzer, comprising a fluid power assembly, a reaction device, a colorimetric assembly, a mixing device, a pure water holding device, a sample holding device, a waste liquid recovery device, an ultraviolet digestion device, at least three reagent holding devices, and the flow path assembly as described above;

[0021] The fluid power component is connected to the fourth hole; the reaction device is connected to the fifth hole; the colorimetric component, the mixing device, the pure water holding device, the sample holding device, the waste liquid recovery device, the ultraviolet digestion device, and the reagent holding device are respectively connected to one of the sixth holes.

[0022] The beneficial effects of the present invention are:

[0023] The flow path component provided by the embodiment of the present invention includes a manifold provided with multiple through hole groups, multiple flow guiding structures, a fourth hole, a fifth hole and multiple sixth holes, and three-way solenoid valves with the same number as the through hole groups, each through hole group includes a first hole, a second hole and a third hole, a three-way solenoid valve is installed on each through hole group, and the normally open interface of the three-way solenoid valve is connected to the first hole, the common interface is connected to the second hole, and the normally closed interface is connected to the third hole, the first hole in each through hole group is connected to the second hole of the adjacent through hole group through the flow guiding structure, so that the two adjacent through hole groups are connected, and since the number of flow guiding structures is one less than the number of through hole groups, there will be no flow guiding structure connected between the first hole of one through hole group and the second hole of another through hole group, one end of the fourth hole is connected to the fluid power component, and the other end of the fourth hole is connected to the fluid power component One end of the fifth hole is connected to the reaction device, and the other end of the fifth hole is connected to the first hole which is not connected to the flow-guiding structure, so that the through-hole group is connected in series by multiple flow-guiding structures, and a flow path is formed by the fourth hole, the through-hole group, the three-way solenoid valve, the flow-guiding structure and the fifth hole. When the fluid enters the second hole from the fourth hole under the action of the fluid power component, it can flow along the flow path to the fifth hole and enter the reaction device. At the same time, the fluid entering the flow path from the sixth hole under the action of the fluid power component can also flow in the entire flow path. Therefore, each time the liquid passes through the flow path in the flow path component, the liquid can fully clean the flow path in the flow path component, effectively avoiding liquid residue in the flow path. When the flow path component is used on a water quality analyzer, the accuracy of the detection data can be effectively improved. In addition, since the flow path assembly has a flat structure, the three-dimensional space it occupies can be effectively reduced, so that the water quality analyzer can be miniaturized and flattened. In addition, since the three-dimensional space occupied by the flow path assembly is relatively small, the structural reliability between the various components of the water quality analyzer can be improved, thereby ultimately improving the reliability of the water quality analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of a partial pipeline top view of an existing online monitoring analyzer;

[0026] Figure 2 for Figure 1 A schematic cross-sectional view along line AA;

[0027] Figure 3 A schematic diagram of the three-dimensional structure of a flow path assembly provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of a flow path assembly from another perspective provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of an exploded structure of a flow path assembly provided in an embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the first plate body and the second plate body of the present invention from the second side surface and the third side surface;

[0031] Figure 7 A schematic front view of a flow path assembly provided by an embodiment of the present invention from a first side perspective;

[0032] Figure 8 for Figure 7 The cross-sectional view along line BB in the middle;

[0033] Fig. 9 for Figure 7 A schematic cross-sectional view along line CC;

[0034] Fig.10 for Figure 7 The cross-sectional view along the DD line;

[0035] Fig.11 A simplified structural schematic diagram of a water quality analyzer provided in an embodiment of the present invention;

[0036] Fig.12 This is a schematic diagram of the three-dimensional structure of the second plate body in the flow path assembly provided as an alternative implementation in an embodiment of the present invention.

[0037] Reference numerals:

[0038] 01. Common pipeline; 011. Through hole; 02. Sampling pipeline; 03. Detection pipeline;

[0039] 1. Flow path components;

[0040] 11. busbar; 1101. first end; 1102. second end;

[0041] 111, first plate; 1110, first side; 1111, second side; 111A, first through hole group; 111B, second through hole group; 111C, third through hole group; 111D, fourth through hole group; 111E, fifth through hole group; 111F, sixth through hole group; 111G, seventh through hole group; 111H, eighth through hole group; 111I, ninth through hole group; 111J, tenth through hole group; 111K, eleventh through hole group; 111L, twelfth through hole group; 111M, thirteenth through hole group; 111N, fourteenth through hole group; 111O, fifteenth through hole group; 111P, sixteenth through hole group; 1112, first hole; 1113, second hole; 1114, third hole; 1115, positioning pin; 1116, second fixing hole;

[0042] 112, second plate; 1120, third side; 1121, fourth side; 112A, first guide groove; 112B, second guide groove; 112C, third guide groove; 112D, fourth guide groove; 112E, fifth guide groove; 112F, sixth guide groove; 112G, seventh guide groove; 112H, eighth guide groove; 112I, ninth guide groove; 112J, tenth guide groove; 112K, eleventh guide groove; 112L, tenth The second guide groove; 112M, the thirteenth guide groove; 112N, the fourteenth guide groove; 112O, the fifteenth guide groove; 112P, the front guide groove; 112Q, the rear guide groove; 112R, the first guide groove; 112S, the second guide groove; 1122, the fourth hole; 1123, the fifth hole; 1124, the sixth hole; 1125, the seventh hole; 1126, the eighth hole; 1127, the positioning hole; 1128, the third fixing hole; 1129, the connecting pipe;

[0043] 113. first fixing hole;

[0044] 2. Water quality analyzer; 21. Fluid power assembly; 22. Colorimetric assembly; 23. Reaction device; 24. Pure water holding device; 25. Sample holding device; 26. Waste liquid recovery device; 27. Mixing device; 28. Ultraviolet digestion device; 29. ​​Reagent holding device; 290. First reagent container; 291. Second reagent container; 292. Third reagent container; 293. Fourth reagent container; 294. Fifth reagent container; 295. Sixth reagent container; 296. Seventh reagent container; 297. Eighth reagent container; 298. Ninth reagent container; 299. Tenth reagent container. DETAILED DESCRIPTION

[0045] 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 described embodiments are 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 creative work are within the scope of protection of the present invention.

[0046] The structural schematic diagram of the flow path component 1 and the water quality analyzer 2 provided in this embodiment is as follows Figures 3 to 12 shown.

[0047] See also Figure 3 , Figure 4 , Figure 5 as well as Fig.11The flow path assembly 1 of this embodiment includes a manifold 11 and a plurality of three-way solenoid valves (not shown in the figure) installed on the manifold 11, wherein the manifold 11 has a first end 1101 and a second end 1102, the first end 1101 and the second end 1102 are arranged opposite to each other, the manifold 11 includes a first plate body 111 and a second plate body 112, the first plate body 111 has a first side surface 1110 and a second side surface 1111, and the first side surface 1110 and the second side surface 1111 are arranged opposite to each other, the first side surface 1110 is connected between the first end 1101 and the second end 1102, and the second side surface 1111 is also connected between the first end 1101 and the second end 1102, and on the first plate body 111, a plurality of through hole groups are penetrated from the first side surface 1110 to the second side surface 1111, and each through hole group includes a first hole 1112, a second hole 1113 and a third hole 1114; the second plate body 112 has a third side surface 1120 and a fourth side surface 1121, the third side surface 1120 and the fourth side surface 1121 are arranged back to back at intervals, the third side surface 1120 is connected between the first end 1101 and the second end 1102, and the fourth side surface 1121 is also connected between the first end 1101 and the second end 1102, the third side surface 1120 is fitted and connected with the second side surface 1111, so that the second plate body 112 is stacked and installed on the first plate body 111, and a plurality of guide structures with openings facing the third side surface 1120 are provided on the second plate body 112, and the plurality of guide structures are used to connect the through hole groups in series in sequence to connect the plurality of through hole groups, the number of the plurality of guide structures is one less than the number of the through hole groups, one end of each guide structure is connected with the first hole 1112 of one through hole group, and the other end is connected with the second hole 1113 of another through hole group. A fourth hole 1122, a fifth hole 1123 and a plurality of sixth holes 1124 are also provided on the second plate body 112 from the third side surface 1120 to the fourth side surface 1121. The number of the sixth holes 1124 is the same as the number of the through hole groups, wherein one end of the fourth hole 1122 is used to be connected to the fluid power component 21, and the other end is connected to the second hole 1113 not connected to the flow guide structure; one end of the fifth hole 1123 is used to be connected to the reaction device 23, and the other end is connected to the first hole 1112 not connected to the flow guide structure; one end of each sixth hole 1124 is connected to a third hole 1114, and the other end is used to pass fluid. Each three-way solenoid valve has a normally open interface, a common interface and a normally closed interface. All three-way solenoid valves are installed on the first side 1110 of the first plate body 111. Each group of through holes is connected to a three-way solenoid valve, and the first hole 1112 of each group of through holes is connected to the normally open interface, the second hole 1113 is connected to the common interface, and the third hole 1114 is connected to the normally closed interface.

[0048] In some embodiments, the three-way solenoid valve is a direct-acting three-way solenoid valve for chemical liquids; the material of the manifold 11 is an acid-resistant, alkali-resistant, chemically stable and transparent material, such as polymethyl methacrylate (also known as acrylic or organic glass; English abbreviation: PMMA). The transparent material makes it easy to observe whether the flow path of the manifold 11 is unobstructed and whether the fluid flowing through the manifold 11 overflows, so as to facilitate the inspection and adjustment of the assembly effect of the first plate body 111 and the second plate body 112 in the manifold 11.

[0049] See also Figure 3 and Figure 5 In some embodiments, the first fixing hole 113 for fixing the conduit 11 to other objects is provided on the conduit 11. Specifically, the first fixing hole 113 can be only provided on the first plate body 111, or can be provided on the first plate body 111 and the second plate body 112. The existence of the first fixing hole 113 allows the conduit 11 to be fixed by a second fastener (not shown in the figure), for example, to a corresponding part of the water quality analyzer 2.

[0050] See also Figure 3 and Figure 5 In some embodiments, a plurality of groups of second fixing holes 1116 are provided on the first plate 111, and the number of each group of second fixing holes 1116 is two, and the number of groups of second fixing holes 1116 is the same as the number of groups of through-holes (or the number of three-way solenoid valves), that is, each group of through-holes corresponds to a group of second fixing holes 1116, so as to fix the three-way solenoid valve on the first plate 111. Through the second fixing holes 1116, the three-way solenoid valve can be fixed to the first side surface 1110 of the first plate 111 by a first fastener (not shown in the figure). The first hole 1112, the second hole 1113 and the third hole 1114 of each group of through-holes are spaced and distributed between the first end 1101 and the second end 1102 along a straight line track, and the second hole 1113 of each group of through-holes is located between the first hole 1112 and the third hole 1114.

[0051] See also Figure 4 , Figure 5 as well as Figure 6In some embodiments, the first plate 111 and the second plate 112 are separately arranged structures, and the first plate 111 and the second plate 112 are detachably connected. A positioning pin 1115 is convexly arranged on the second side 1111 of the first plate 111, and a positioning hole 1127 is arranged on the third side 1120 of the second plate 112, and the positioning hole 1127 is used for the positioning pin 1115 to be inserted and positioned. In an alternative embodiment, the positioning pin 1115 can also be convexly arranged on the third side 1120 of the second plate 112, and the positioning hole 1127 is arranged on the second side 1111 of the first plate 111. In some embodiments, a plurality of third fixing holes 1128 are also arranged on the second plate 112, and the third fixing holes 1128 are used to fasten the first plate 111 and the second plate 112 to prevent liquid from overflowing from the guide structure through the connection portion between the second side 1111 and the third side 1120. The first plate 111 and the second plate 112 may be fastened using a third fastener (not shown). In some alternative embodiments, the first plate 111 and the second plate 112 may not be fastened using the third fixing hole 1128, but the surfaces of the first plate 111 and the second plate 112 that are in contact with each other may be fused, so that the first plate 111 and the second plate 112 are spliced ​​into a whole.

[0052] See also Figure 3 , Figure 5 , Fig.11 as well as Fig.12 In some implementations of this embodiment, the number of through hole groups is sixteen in total, and they are arranged in eight rows and two columns. In this embodiment, the direction from the first end 1101 to the second end 1102 is defined as a row, and the straight line trajectory along the first end 1101 or the second end 1102 is defined as a column, and the column close to the first end 1101 is defined as the first column, and the column close to the second end 1102 is defined as the second column. In the first column, the first hole 1112, the second hole 1113, and the third hole 1114 are arranged in sequence from the first end 1101 to the second end 1102; in the second column, the first hole 1112, the second hole 1113, and the third hole 1114 are arranged in sequence from the second end 1102 to the first end 1101; and the second plate body 112 is further provided with a front end drainage groove 112P and a rear end drainage groove 112Q opening toward the third side surface 1120; a seventh hole 1125 and an eighth hole 1126 are penetrated through the second plate body 112 from the third side surface 1120 to the fourth side surface 1121.

[0053] Specifically, the sixteen through hole groups include a first through hole group 111A, a second through hole group 111B, a third through hole group 111C, a fourth through hole group 111D, a fifth through hole group 111E, a sixth through hole group 111F, a seventh through hole group 111G, an eighth through hole group 111H, a ninth through hole group 111I, a tenth through hole group 111J, an eleventh through hole group 111K, a twelfth through hole group 111L, a thirteenth through hole group 111M, a fourteenth through hole group 111N, a fifteenth through hole group 111O, and a sixteenth through hole group 111P; the first through hole group 111A to the eighth through hole group 111H are the first row, and the ninth through hole group 111J is the first row. 111I to the sixteenth through hole group 111P are the second column; the plurality of three-way solenoid valves include a first three-way solenoid valve, a second three-way solenoid valve, a third three-way solenoid valve, a fourth three-way solenoid valve, a fifth three-way solenoid valve, a sixth three-way solenoid valve, a seventh three-way solenoid valve, an eighth three-way solenoid valve, a ninth three-way solenoid valve, a thirteenth three-way solenoid valve, an eleventh three-way solenoid valve, a twelfth three-way solenoid valve, a thirteenth three-way solenoid valve, a fourteenth three-way solenoid valve, a fifteenth three-way solenoid valve and a sixteenth three-way solenoid valve; the plurality of diversion structures include a first diversion groove 112A, a second diversion groove 112B, a third diversion groove 112C, a fourth diversion groove 11 2D, the fifth guide groove 112E, the sixth guide groove 112F, the seventh guide groove 112G, the ninth guide groove 112I, the tenth guide groove 112J, the eleventh guide groove 112K, the twelfth guide groove 112L, the thirteenth guide groove 112M, the fourteenth guide groove 112N, the fifteenth guide groove 112O and the drainage structure, wherein the first drainage groove 112A to the fifteenth guide groove 112O are all recessed on the second plate body 112, and the opening faces the third side surface 1120, and the drainage structure includes the first drainage groove 112R, the second drainage groove 112S and the drainage groove connected to the first drainage groove 112R and the second drainage groove A connecting pipe 1129 is provided between the flow grooves 112S, the first drainage groove 112R and the second drainage groove 112S are recessed on the second plate body 112 and open toward the third side surface 1120, the first guide groove 112A to the seventh guide groove 112G are used to connect the through hole groups in the first column, the ninth guide groove 112I to the fifteenth guide groove 112O are used to connect the through hole groups in the second column, the first drainage groove 112R, the second drainage groove 112S and the connecting pipe 1129 are used to connect the through hole groups in the first column and the through hole groups in the second column in series, and at the same time, the guide structure between any two adjacent rows of through hole groups extends along an oblique straight line trajectory.

[0054] Then: the fourth hole 1122 is located at one end of the third side 1120 and is connected to one end of the front end drainage groove 112P, and the other end is used to connect to the fluid power component 21, and the other end of the front end drainage groove 112P is connected to one end of the second hole 1113 in the first through hole group 111A and is located on the second side 1111; the first hole 1112, the second hole 1113 and the third hole 1114 of the first through hole group 111A are located at one end of the first side 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the first three-way solenoid valve; the first hole 1112 in the first through hole group 111A is located at one end of the second side 1111 and is connected to one end of the first guide groove 112A, and the other end of the first guide groove 112A is connected to one end of the second hole 1113 in the second through hole group 111B and is located on the second side 1111.

[0055] The first hole 1112, the second hole 1113 and the third hole 1114 of the second through hole group 111B are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the second three-way solenoid valve; the first hole 1112 in the second through hole group 111B is located at one end of the second side surface and is connected to one end of the second guide groove 112B, and the other end of the second guide groove 112B is connected to one end of the second hole 1113 in the third through hole group 111C and is located at the second side surface 1111.

[0056] The first hole 1112, the second hole 1113 and the third hole 1114 of the third through hole group 111C are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the third three-way solenoid valve; the first hole 1112 in the third through hole group 111C is located at one end of the second side surface 1111 and is connected to one end of the third guide groove 112C, and the other end of the third guide groove 112C is connected to one end of the second hole 1113 in the fourth through hole group 111D and is located at one end of the second side surface 1111.

[0057] The first hole 1112, the second hole 1113 and the third hole 1114 of the fourth through hole group 111D are located at one end of the first side 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the fourth three-way solenoid valve; the first hole 1112 in the fourth through hole group 111D is located at one end of the second side 1111 and is connected to one end of the fourth guide groove 112D, and the other end of the fourth guide groove 112D is connected to one end of the second hole 1113 in the fifth through hole group 111E and is located at one end of the second side 1111.

[0058] The first hole 1112, the second hole 1113 and the third hole 1114 of the fifth through hole group 111E are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the fifth three-way solenoid valve; the first hole 1112 in the fifth through hole group 111E is located at one end of the second side surface 1111 and is connected to one end of the fifth guide groove 112E, and the other end of the fifth guide groove 112E is connected to one end of the second hole 1113 in the sixth through hole group 111F and is located at one end of the second side surface 1111.

[0059] The first hole 1112, the second hole 1113 and the third hole 1114 of the sixth through hole group 111F are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the sixth three-way solenoid valve; the first hole 1112 in the sixth through hole group 111F is located at one end of the second side surface 1111 and is connected to one end of the sixth guide groove 112F, and the other end of the sixth guide groove 112F is connected to one end of the second hole 1113 in the seventh through hole group 111G and is located at one end of the second side surface 1111.

[0060] The first hole 1112, the second hole 1113 and the third hole 1114 of the seventh through hole group 111G are located at one end of the first side 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the seventh three-way solenoid valve; the first hole 1112 in the seventh through hole group 111G is located at one end of the second side 1111 and is connected to one end of the seventh guide groove 112G, and the other end of the seventh guide groove 112G is connected to one end of the second hole 1113 in the eighth through hole group 111H and is located at one end of the second side 1111.

[0061] The first hole 1112, the second hole 1113 and the third hole 1114 of the eighth through hole group 111H are located at one end of the first side 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the eighth three-way solenoid valve; the first hole 1112 in the eighth through hole group 111H is located at one end of the second side 1111 and is connected to one end of the drainage structure, and the other end of the drainage structure is connected to the second hole 1113 in the ninth through hole group 111I and is located at one end of the second side 1111. More specifically, one end of the first hole 1112 in the eighth through hole group 111H located on the second side 1111 is connected to one end of the first drainage groove 112R, and the other end of the first drainage groove 112R is connected to the seventh hole 1125, one end of the connecting pipe 1129 is detachably connected to the seventh hole 1125, and the other end is also detachably connected to the eighth hole 1126, and the other end of the eighth hole 1126 is connected to one end of the second drainage groove 112S, and the other end of the second drainage groove 112S is connected to one end of the second hole 1113 in the ninth through hole group 111I located on the second side 1111. In some alternative embodiments, specifically as Fig.12As shown, the drainage structure is an eighth guide groove 112H, the eighth guide groove 112H is recessed on the second plate body 112, and the opening faces the third side surface 1120, one end of the eighth guide groove 112H is connected to the first hole 1112 in the eighth through hole group 111H, and the other end of the eighth guide groove 112H is connected to the second hole 1113 in the ninth through hole group 111I, and the seventh hole 1125 and the eighth hole 1126 do not need to be provided on the second plate body 112, and the detachable connecting tube 1129 is not needed to connect the eighth through hole group 111H and the ninth through hole group 111I in series.

[0062] The first hole 1112, the second hole 1113 and the third hole 1114 of the ninth through hole group 111I are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the ninth three-way solenoid valve; the first hole 1112 in the ninth through hole group 111I is located at one end of the second side surface 1111 and is connected to one end of the ninth guide groove 112I, and the other end of the ninth guide groove 112I is connected to one end of the second hole 1113 in the tenth through hole group 111J and is located at one end of the second side surface 1111.

[0063] The first hole 1112, the second hole 1113 and the third hole 1114 of the tenth through hole group 111J are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the thirteenth solenoid valve; the first hole 1112 in the tenth through hole group 111J is located at one end of the second side surface 1111 and is connected to one end of the tenth guide groove 112J, and the other end of the tenth guide groove 112J is connected to one end of the second hole 1113 in the eleventh through hole group 111K and is located at one end of the second side surface 1111.

[0064] The first hole 1112, the second hole 1113 and the third hole 1114 of the eleventh through hole group 111K are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the eleventh three-way solenoid valve; the first hole 1112 in the eleventh through hole group 111K is located at one end of the second side surface 1111 and is connected to one end of the eleventh guide groove 112K, and the other end of the eleventh guide groove 112K is connected to one end of the second hole 1113 in the twelfth through hole group 111L and is located at one end of the second side surface 1111.

[0065] The first hole 1112, the second hole 1113 and the third hole 1114 of the twelfth through hole group 111L are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the twelfth three-way solenoid valve; the first hole 1112 in the twelfth through hole group 111L is located at one end of the second side surface 1111 and is connected to one end of the twelfth guide groove 112L, and the other end of the twelfth guide groove 112L is connected to one end of the second hole 1113 in the thirteenth through hole group 111M and is located at one end of the second side surface 1111.

[0066] The first hole 1112, the second hole 1113 and the third hole 1114 of the thirteenth through hole group 111M are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the thirteenth three-way solenoid valve; the first hole 1112 in the thirteenth through hole group 111M is located at one end of the second side surface 1111 and is connected to one end of the thirteenth guide groove 112M, and the other end of the thirteenth guide groove 112M is connected to one end of the second hole 1113 in the fourteenth through hole group 111N and is located at one end of the second side surface 1111.

[0067] The first hole 1112, the second hole 1113 and the third hole 1114 of the fourteenth through hole group 111N are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the fourteenth three-way solenoid valve; the first hole 1112 in the fourteenth through hole group 111N is located at one end of the second side surface 1111 and is connected to one end of the fourteenth guide groove 112N, and the other end of the fourteenth guide groove 112N is connected to one end of the second hole 1113 in the fifteenth through hole group 111O and is located at one end of the second side surface 1111.

[0068] The first hole 1112, the second hole 1113 and the third hole 1114 of the fifteenth through hole group 111O are located at one end of the first side surface 1110 and are respectively connected to the normally open interface, the common interface and the normally closed interface of the fifteenth three-way solenoid valve; the first hole 1112 in the fifteenth through hole group 111O is located at one end of the second side surface 1111 and is connected to one end of the fifteenth guide groove 112O, the other end of the fifteenth guide groove 112O is connected to one end of the second hole 1113 in the sixteenth through hole group 111P and is located at the second side surface 1111, and one end of the rear end drainage groove 112Q is connected to one end of the first hole 1112 in the sixteenth through hole group 111P and is located at the second side surface 1111; the fifth hole 1123 is located at one end of the third side surface 1120 and is connected to the other end of the rear end drainage groove 112Q, and the other end of the fifth hole 1123 is used to connect the reaction device 23.

[0069] In this embodiment, the sixth hole 1124 includes a pure water connection hole, a sample connection hole, a waste liquid connection hole, an ultraviolet digestion connection hole, a mixing connection hole, a colorimetric connection hole, a first reagent connection hole, a second reagent connection hole, a third reagent connection hole, a fourth reagent connection hole, a fifth reagent connection hole, a sixth reagent connection hole, a seventh reagent connection hole, an eighth reagent connection hole, a ninth reagent connection hole, and a tenth reagent connection hole, wherein the pure water connection hole is connected to the third hole 1114 in the first through hole group 111A at one end of the second side surface 1111; the sample connection hole is connected to the third hole 1114 in the second through hole group 111B at the second side surface The waste liquid connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the third through hole group 111C; the UV digestion connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the fourth through hole group 111D; the first reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the fifth through hole group 111E; the second reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the sixth through hole group 111F; the third reagent connection hole is connected to the third hole 1114 in the seventh through hole group 111G The fourth reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the eighth through hole group 111H; the fifth reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the ninth through hole group 111I; the sixth reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the tenth through hole group 111J; the seventh reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the eleventh through hole group 111K; the eighth reagent connection hole is connected to one end of the second side surface 1111 with the third hole 1114 in the twelfth through hole group 111K; The third hole 1114 in the hole group 111L is connected to one end of the second side surface 1111; the ninth reagent connection hole is connected to the third hole 1114 in the thirteenth through hole group 111M at one end of the second side surface 1111; the tenth reagent connection hole is connected to the third hole 1114 in the fourteenth through hole group 111N at one end of the second side surface 1111; the mixing connection hole is connected to the third hole 1114 in the fifteenth through hole group 111O at one end of the second side surface 1111; the colorimetric connection hole is connected to the third hole 1114 in the sixteenth through hole group 111P at one end of the second side surface 1111.

[0070] See also Figures 7 to 10 as well as Figure 4 The flow path component 1 provided by the present invention can be formed as follows Figure 8 and Fig. 9 As shown in the flow path, when the fluid enters the manifold 11 from the fourth hole 1122, the fluid flows along Figure 8 The dotted line flows in the direction of the arrow, then flows out from the seventh hole 1125, flows through the connecting pipe 1129 to the eighth hole 1126, and flows along Fig. 9 dotted line and flows in the direction of the arrow, and finally flows out from the fifth hole 1123.

[0071] Based on the above-mentioned flow path component 1, this embodiment further provides a water quality analyzer 2. For details, please refer to Fig.11 . The water quality analyzer 2 includes a fluid power component 21, a colorimetric component 22, a reaction device 23, a flow path component 1, etc. Among them, the fluid power component 21 is connected to the fourth hole 1122, the reaction device 23 is connected to the fifth hole 1123, and the colorimetric component 22 is connected to one of the sixth holes 1124. Specifically, the fluid power component 21 includes any one of a peristaltic pump and a syringe pump (not shown in the figure) and a liquid storage tank (not shown in the figure), by connecting the peristaltic pump or the syringe pump to the fourth hole 1122, and at the same time connecting the pure water connection hole to the pure water holding device 24, the sample connection hole to the sample holding device 25, the waste liquid connection hole to the waste liquid recovery device 26, the mixing connection hole to the mixing device 27, the ultraviolet digestion connection hole to the ultraviolet digestion device 28, and the reagent connection hole to the reagent holding device 29, wherein the first reagent connection hole is connected to the first reagent The second reagent connection hole is connected to the second reagent container 290, the second reagent connection hole is connected to the second reagent container 291, the third reagent connection hole is connected to the third reagent container 292, the fourth reagent connection hole is connected to the fourth reagent container 293, the fifth reagent connection hole is connected to the fifth reagent container 294, the sixth reagent connection hole is connected to the sixth reagent container 295, the seventh reagent connection hole is connected to the seventh reagent container 296, the eighth reagent connection hole is connected to the eighth reagent container 297, the ninth reagent connection hole is connected to the ninth reagent container 298, and the tenth reagent connection hole is connected to the tenth reagent container 299.

[0072] Combine the following Fig.11 and Figures 7 to 10 , describing the basic working process of the water quality detector of the embodiment of the present invention:

[0073] Cleaning step: start the peristaltic pump or the syringe pump, open the normally closed interface of the three-way solenoid valve installed in the first through hole group 111A, and the peristaltic pump or the syringe pump draws the pure water in the pure water holding device 24 into the front drainage groove 112P through the fourth hole 1122 connected to the pure water holding device 24, and then enters the flow path from the front drainage groove 112P through the second hole 1113, and finally enters the liquid storage tank in the fluid power component 21;

[0074] Subsequently, the peristaltic pump or the injection pump injects the pure water stored in the liquid storage tank into the flow path of the flow path component 1 to clean the entire flow path and the reaction device 23. After the cleaning is completed, the cleaning liquid is discharged to the waste liquid recovery device 26 through the waste liquid connection hole.

[0075] Sample liquid rinsing step: It is the same as the cleaning step, except that the sample liquid is extracted, specifically, the peristaltic pump or the syringe pump is started to draw the sample liquid in the sample holding device 25 into the liquid storage tank in the fluid power component 21, and then the peristaltic pump or the syringe pump injects the sample liquid stored in the liquid storage tank into the flow path of the flow path component 1 to clean the entire flow path and the mixing device 27. After cleaning, the sample liquid is discharged to the waste liquid recovery device 26.

[0076] The step of extracting sample liquid is the same as the cleaning step and the rinsing step. Specifically, the sample liquid in the sample holding device 25 is extracted into the liquid storage tank, and then the peristaltic pump or the injection pump injects the sample liquid in the liquid storage tank into the flow path of the flow path component 1, and finally enters the mixing device 27 for standby use.

[0077] Reagent rinsing step: According to the performance of the test sample liquid, the reagent liquid that reacts with the sample liquid is extracted from the corresponding reagent holding device 29, and the reagent liquid is pumped into the liquid storage tank. Then the peristaltic pump or injection pump injects the reagent liquid in the liquid storage tank into the flow path of the flow path component 1 to clean the entire flow path. After cleaning, the reagent liquid is discharged to the waste liquid recovery device 26.

[0078] Reagent liquid extraction step: extract the reagent in the reagent holding device 29 into the liquid storage tank, then use a peristaltic pump or a syringe pump to inject the reagent liquid in the liquid storage tank into the flow path of the flow path component 1, and finally enter the mixing device 27 to mix with the sample liquid to obtain a mixed liquid.

[0079] Mixed liquid rinsing step: the mixed liquid in the mixing device 27 is extracted into the liquid storage tank, and the flow path of the flow path component 1 and the reaction device 23 are rinsed. After the rinsing is completed, the mixed liquid in the reaction device 23 is discharged to the waste liquid recovery device 26.

[0080] Mixed liquid extraction step: extract the mixed liquid in the mixing device 27 into the liquid storage tank, and then inject the mixed liquid in the liquid storage tank into the reaction device 23 through the flow path, react in the reaction device 23, and obtain a reacted solution or suspension. Extract part of the reacted solution or suspension from the reaction device 23, rinse the flow path, the ultraviolet digestion device 28 and / or the detection device (such as the cuvette in the colorimetric component 22), and finally extract the remaining solution or suspension in the reaction device 23 to the ultraviolet digestion device 28 and / or the detection device (such as the cuvette in the colorimetric component 22) for further reaction or detection, so as to obtain information of the sample liquid, and finally discharge the detected solution or suspension to the waste liquid recovery device 26.

[0081] The remaining parameters of the sample or the remaining sample detection can be carried out according to the above-mentioned working process, so that multiple parameters of the sample can be obtained, and finally multiple parameter information of the sample can be obtained to realize multi-parameter detection, which will not be elaborated in detail here.

[0082] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A flow path assembly for a water quality analyzer, characterized in that: It includes a manifold and a plurality of three-way solenoid valves; Each of the three-way solenoid valves includes a normally open interface, a common interface and a normally closed interface; The busbar includes a first plate body and a second plate body stacked and mounted on the first plate body; The first plate body has a first side surface and a second side surface opposite to the first side surface, and a plurality of through hole groups are provided from the first side surface to the second side surface, each of the through hole groups is connected to one of the three-way solenoid valves, and each of the through hole groups includes a first hole connected to the normally open interface, a second hole connected to the common interface, and a third hole connected to the normally closed interface; The second plate body has a third side surface that is in contact with the second side surface and a fourth side surface that is opposite to the third side surface; the second plate body is provided with a plurality of flow-guiding structures for connecting the through-hole groups in series in sequence; the number of the plurality of flow-guiding structures is one less than the number of the through-hole groups, one end of each of the flow-guiding structures is connected with the first hole of one group of the through-hole groups, and the other end is connected with the second hole of another group of the through-hole groups; the second plate body is penetrated by a fourth hole, a fifth hole and a sixth hole whose number is the same as the number of the through-hole groups from the third side surface to the fourth side surface, one end of the fourth hole is used to connect with the fluid power component, and the other end is connected with the second hole that is not connected with the flow-guiding structure; one end of the fifth hole is used to connect with the reaction device, and the other end is connected with the first hole that is not connected with the flow-guiding structure, and each of the sixth holes is connected with one of the third holes; The plurality of guide structures are guide grooves opening toward the third side surface, the number of the guide grooves is one less than the number of the through hole groups, and each of the guide grooves is connected in series with the first hole of one through hole group and the second hole of another through hole group; or The multiple guide structures include a guide structure and a guide groove opening toward the third side surface, the number of the guide structure is at least one, and the sum of the number of the guide structures and the number of the guide grooves is one less than the number of the through hole groups, each of the guide structures includes a first guide groove, a second guide groove and a connecting pipe, one end of the first guide groove is connected to the first hole of one group of the through hole groups, and the other end is connected to the connecting pipe, one end of the second guide groove is connected to the second hole of another group of the through hole groups, and the other end is connected to the connecting pipe; The busbar has a first end and a second end opposite to the first end, the first side surface and the second side surface extend from the first end to the second end respectively, the first hole, the second hole and the third hole of each group of through hole groups are distributed between the first end and the second end along a straight line, and the second hole of each group of through hole groups is located between the first hole and the third hole.

2. The flow path assembly according to claim 1, characterized in that The plurality of through hole groups are distributed on the first plate in a plurality of rows.

3. The flow path assembly according to claim 2, characterized in that: The flow guiding structure between any two adjacent rows of through hole groups extends along an oblique straight line track.

4. The flow path assembly according to claim 3, characterized in that: The plurality of through hole groups are distributed on the first plate in a plurality of rows and two columns.

5. The flow path assembly according to claim 4, characterized in that: In one column of the multiple groups of through holes in the multiple rows and two columns, the first hole, the second hole, and the third hole are arranged in sequence from the first end to the second end; in another column of the multiple groups of through holes, the first hole, the second hole, and the third hole are arranged in sequence from the second end to the first end.

6. The flow path assembly according to claim 5, characterized in that: The plurality of through hole groups are distributed in eight rows and two columns.

7. The flow path assembly according to any one of claims 1 to 6, characterized in that: The multiple sixth holes include a pure water connection hole for introducing pure water, a sample connection hole for introducing sample liquid, a waste liquid connection hole for discharging waste liquid, an ultraviolet digestion connection hole for connecting to an ultraviolet digestion device, a mixing connection hole for connecting to a mixing device, a colorimetric connection hole for connecting to a colorimetric component, and multiple reagent connections connected to the reagent holding device.

8. A water quality analyzer, characterized in that: It comprises a fluid power component, a reaction device, a colorimetric component, a mixing device, a pure water holding device, a sample holding device, a waste liquid recovery device, an ultraviolet digestion device, at least three reagent holding devices, and a flow path component as claimed in any one of claims 1 to 7; The fluid power component is connected to the fourth hole; the reaction device is connected to the fifth hole; the colorimetric component, the mixing device, the pure water holding device, the sample holding device, the waste liquid recovery device, the ultraviolet digestion device, and the reagent holding device are respectively connected to one of the sixth holes.

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