Water quality analysis device for flowing pipeline

Abstract

The utility model discloses a water quality analysis device for a flowing pipeline. The water quality analysis device comprises a connecting pipe section and a water quality analyzer formed on the connecting pipe section, the connecting pipe section is assembled and connected with the flowing pipeline and has a pipe diameter matched with that of the flowing pipeline; a parallel branch is arranged at the lower part of the connecting pipe section, a combined flow slowing structure is formed on the parallel branch, the combined flow slowing structure comprises a plurality of externally-expanded expansion joints which are sequentially connected in series, and unpowered valve plates matched with the externally-expanded expansion joints in section size are formed in the externally-expanded expansion joints; a buffer bag cavity is further formed in the water outlet side of the external expansion joint of the parallel branch, a sampling sensor is formed on the side wall of the buffer bag cavity, and the sampling sensor is in communication connection with the water quality analyzer. The device has the advantages of convenience in installation, compact structure, good stability, high accuracy and the like, and is suitable for water quality analysis scenes of various flowing pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality analysis, in particular to a water quality analysis device used in a flow pipeline. Background Art

[0002] Water quality analysis, also known as water chemistry analysis, mainly measures the content of various chemical components in water through chemical and physical methods. It is an important means of evaluating and monitoring the water environment, helping to understand the basic characteristics of water bodies, pollution conditions and potential ecological risks, and providing a basis for water quality evaluation, pollution control and water resources management.

[0003] With the advancement of science and technology, water quality analysis is also constantly developing and improving. In addition to static water quality analysis in the laboratory, online water quality analysis devices will be installed in the pipeline area. This type of online water quality analysis device can be used to monitor the water quality in the flow pipeline in real time. The water quality analysis device in the prior art usually performs sampling and testing by opening a hole in the pipeline or setting a branch line. It has the defect of being inconvenient to install on the pipeline, and this sampling method is greatly affected by factors such as pipeline pressure and flow, which will directly affect the accuracy of the online monitoring instrument analysis. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a water quality analysis device for a flow pipeline to solve the defects in the above technical background.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] A water quality analysis device for a flow pipeline comprises a connecting pipe section and a water quality analyzer formed on the connecting pipe section; the connecting pipe section is assembled and connected to the flow pipeline and has a pipe diameter matching the flow pipeline; a parallel branch is arranged at the lower part of the connecting pipe section, and a combined slow flow structure is formed on the parallel branch, the combined slow flow structure comprises a plurality of outward expansion joints connected in series in sequence, and a non-powered valve sheet matching the cross-sectional size of the outward expansion joint is formed in the outward expansion joint; the parallel branch is also provided with a buffer cavity on the water outlet side of the outward expansion joint, a sampling sensor is formed on the side wall of the buffer cavity, and the sampling sensor is communicatively connected with the water quality analyzer.

[0007] As a further limitation, quick-connect joints are formed at both ends of the connecting pipe section, and the connecting pipe section is connected to the flow pipeline through the quick-connect joints.

[0008] As a further limitation, the connecting pipe section and the water quality analyzer are formed as one body, and are integrally encapsulated by an outer shell on the outside of the connecting pipe section and the water quality analyzer.

[0009] As a further limitation, the diameter of the parallel branch is 1 / 3 to 1 / 5 of the diameter of the connecting pipe section;

[0010] The buffer cavity is a cylindrical cavity arranged along the length direction of the parallel branch, and the outer diameter of the buffer cavity is 2 to 3 times the diameter of the parallel branch.

[0011] As a further limitation, the outward expansion joint is a spherical expansion joint; the unpowered valve plate is a circular valve plate having the same ball diameter as the spherical expansion joint, the circular valve plate is vertically arranged to the parallel branch, and is assembled in the spherical expansion joint through an axis rod passing through the center of the circle.

[0012] As a further limitation, the cross-sectional size of the outward expansion joint on the water inlet side among the plurality of outward expansion joints is less than or equal to the cross-sectional size of the outward expansion joint on the water outlet side.

[0013] As a further limitation, a detachable wall panel is formed on the inner wall of the buffer cavity, and the sampling sensors are multiple and packaged on the wall panel.

[0014] As a further limitation, a rotor flowmeter is also formed on the parallel branch.

[0015] Beneficial effects: The utility model provides a water quality analysis device for a flow pipeline, which can be directly installed in the flow pipeline without too much modification to the original flow pipeline, and can realize dynamic online analysis and monitoring of the water body in the flow pipeline; the device reduces the difficulty and cost of installation, and at the same time, the combined slow-flow structure arranged on the parallel branch can effectively slow down the water flow speed, making the water flow more stable during the water quality analysis process, which can meet the different water quality analysis requirements of water quality analysis and improve the stability and reliability of the analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.

[0017] Among them: 1. Quick-connect joint at the water inlet end; 2. Main line; 3. Parallel branch; 4. Outward expansion joint; 5. Round valve plate; 6. Water quality analyzer; 7. Buffer sac cavity; 8. Wall panel; 9. Sampling sensor; 10. Quick-connect joint at the water outlet end. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0019] See also Figure 1A preferred embodiment of a water quality analysis device for a flow pipeline is provided. In this embodiment, the water quality analysis device can be used to be directly assembled on the flow pipeline to perform real-time analysis and detection of the water quality of the flowing water in the flow pipeline.

[0020] The main body of the water quality analysis device is a connecting pipe section, and the pipe diameter of the connecting pipe section is consistent with that of the connecting pipe section, and both are matched with the pipe diameter of the flow pipeline, so that the connecting pipe section can be directly assembled into the flow pipeline without the need to modify the flow pipeline. The two ends of the connecting pipe section are respectively formed with a water inlet quick-connect joint 1 and a water outlet quick-connect joint 10. When the water quality analysis device is in use, it can be quickly connected to the flow pipeline through the water inlet quick-connect joint 1 and the water outlet quick-connect joint 10, so that the connecting pipe section and the flow pipeline form a fluid passage, thereby realizing sampling and analysis of the flowing water body.

[0021] A parallel branch 3 is formed in the middle position of the connecting pipe section. The diameter of the parallel branch 3 is 1 / 3 to 1 / 5 of the diameter of the connecting pipe section. It can be used to draw out part of the water in the flow pipeline without affecting the normal water discharge of the flow pipeline, and introduce it into the buffer capsule cavity 7 after being processed by the combined slow-flow structure, and use the water quality analyzer 6 to perform water quality analysis.

[0022] In this embodiment, the combined slow flow structure is composed of three external expansion joints 4 connected in series in sequence; the external expansion joint 4 is a spherical expansion joint, and a circular valve plate 5 with the same ball diameter as the spherical expansion joint is provided in the spherical expansion joint. The circular valve plate 5 is a non-powered valve plate and can swing freely with the flow of water; the size of the circular valve plate 5 is consistent with the ball diameter of the spherical expansion joint, and the circular valve plate 5 is vertically arranged with the parallel branch 3, and is assembled in the middle position of the external expansion joint 4 in the manner shown in the figure through the shaft rod passing through the center of the circle. Among the three external expansion joints 4 connected in series in sequence, the cross-sectional size of the external expansion joint 4 on the water inlet side is less than or equal to the cross-sectional size of the external expansion joint 4 on the water outlet side; this structural setting and the non-powered circular valve plate 5 can naturally adjust the flow rate of the water body flowing through, slow down the impact force of the water flow, make the water sample reach a relatively stable state before entering the buffer cavity 7, and avoid the generation of vortex or backflow in the buffer cavity 7, which is conducive to improving the stability and accuracy of water quality analysis.

[0023] The buffer cavity 7 is a water quality sampling structure. In this embodiment, it is a cylindrical cavity structure arranged along the length direction of the parallel branch. The outer diameter of the buffer cavity 7 is twice the diameter of the parallel branch, so it has a larger volume, can accommodate more water samples, and can perform secondary buffering on the water flowing out of the combined slow flow structure, further eliminating the fluctuation and unstable disturbance in the water body, and improving the accuracy of water quality analysis. A detachable wall plate 8 is formed on the side wall of the buffer cavity 7, and the sampling sensor 9 is encapsulated in the wall plate 8. The number, type and model of the sampling sensor 9 can be set according to the sampling requirements. The sampling sensor 9 is used to collect water samples in the buffer cavity 7 in real time and transmit the sample data to the water quality analyzer 6 for analysis. The detachable wall plate 8 can facilitate the arrangement, maintenance and replacement of the sampling sensor 9.

[0024] The water quality analyzer 6 of this embodiment is formed on the lower side of the connecting pipe section and is an assembled structure. At the same time, in order to facilitate the packaging and protection of the water quality analyzer, the connecting pipe section and the outer side of the water quality analyzer 6 are integrally packaged through an outer shell. The outer shell can be designed to be waterproof and dustproof to protect the water quality analyzer from the influence of the external environment.

[0025] In another embodiment, a rotor flowmeter may be provided on the parallel branch 3 to monitor the water flow in the parallel branch 3 in real time, so as to monitor and adjust the working state of the water quality analysis device.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the scope of protection of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the scope of protection defined by the claims attached to this application.

Claims

1. A water quality analysis device for a flow pipeline, characterized in that: It comprises a connecting pipe section and a water quality analyzer formed on the connecting pipe section; the connecting pipe section is assembled and connected with the flow pipeline and has a pipe diameter matching the flow pipeline; a parallel branch is arranged at the lower part of the connecting pipe section, and a combined slow-flow structure is formed on the parallel branch, the combined slow-flow structure comprises a plurality of outward expansion joints connected in series in sequence, and a non-powered valve sheet matching the cross-sectional size of the outward expansion joint is formed in the outward expansion joint; a buffer cavity is also arranged on the water outlet side of the outward expansion joint of the parallel branch, a sampling sensor is formed on the side wall of the buffer cavity, and the sampling sensor is communicatively connected with the water quality analyzer.

2. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: Both ends of the connecting pipe section are formed with quick-connect joints, and the connecting pipe section is connected to the flow pipeline through the quick-connect joints.

3. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: The connecting pipe section and the water quality analyzer are formed as one body, and are integrally packaged by an outer shell on the outside of the connecting pipe section and the water quality analyzer.

4. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: The pipe diameter of the parallel branch is 1 / 3 to 1 / 5 of the pipe diameter of the connecting pipe section.

5. The water quality analysis device for a flow pipeline according to claim 4, characterized in that: The buffer cavity is a cylindrical cavity arranged along the length direction of the parallel branch, and the outer diameter of the buffer cavity is 2 to 3 times the diameter of the parallel branch.

6. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: The outward expansion joint is a spherical expansion joint; the unpowered valve plate is a circular valve plate with the same ball diameter as the spherical expansion joint, the circular valve plate is vertically arranged with the parallel branch, and is assembled in the spherical expansion joint through an axle rod passing through the center of the circle.

7. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: Among the plurality of outward expansion joints, the cross-sectional dimension of the outward expansion joint close to the water inlet side is smaller than or equal to the cross-sectional dimension of the outward expansion joint close to the water outlet side.

8. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: A detachable wall plate is formed on the inner wall of the buffer cavity, and a plurality of sampling sensors are packaged on the wall plate.

9. The water quality analysis device for a flow pipeline according to claim 1, characterized in that: A rotor flowmeter is also formed on the parallel branch.

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