CN218725662U

CN218725662U - Online sampler

Info

Publication number: CN218725662U
Application number: CN202222519022.1U
Authority: CN
Inventors: 胡晓静; 冯志东; 乐文志; 谭清志; 蒋文娟
Original assignee: Shenzhen Borisi Environmental Protection Group Co ltd
Current assignee: Shenzhen Borisi Environmental Protection Group Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-03-24
Anticipated expiration: 2032-09-21

Abstract

The application discloses an online sampler for online monitoring of fluid. In the online sampler, one end of a sampling pipe is positioned in a vertical main pipeline and is connected with a pretreatment unit; at least three elbow bends are arranged between two ends of the sample injection pipeline, and the sample injection pipeline is vertically butted with the lower end opening of the main pipeline through another elbow bend; the sampling pipeline is vertically connected to the middle part of the main pipeline. The on-line sampler has a simple structure, is convenient to assemble and disassemble and durable, and can also keep a certain amount of monitoring objects in the pipeline all the time.

Description

On-line sampler

Technical Field

The application belongs to the technical field of fluid on-line monitoring, and particularly relates to an on-line sampler.

Background

For the online monitoring of industrial waste liquid and waste gas, natural water and atmosphere, the sampling pretreatment influences the stability of equipment and the accuracy of results.

The water quality on-line analyzer pumps water to an on-line sampler (also called preprocessor) through a water pump, removes insoluble substances such as large particles, silt, suspended matters and the like through standing and filtering, and then extracts a water sample to the inside of the analyzer through a sampling pipe for testing.

The sampling pipe is positioned in the main pipeline, and a sample introduction pipeline in front of the main pipeline is provided with a branch. The action of the branch circuit: on one hand, a loop is formed, and the sediment and the like are reduced in the pipeline; on the other hand, the water flow pressure of the main pipeline is reduced, and the sampling of the sampling pipe is facilitated.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved is, how to improve online sampler, realizes that the structure is simplified and convenient durable.

The application discloses an online sampler. The online sampler is used for online monitoring of fluid.

This online sampler includes:

the device comprises a main pipeline, a sampling pipe and a monitoring device, wherein the main pipeline is vertically arranged, the top end of the sampling pipe is hermetically and fixedly arranged, one end of the sampling pipe extends downwards in the main pipeline and is connected with a preprocessing unit, and the other end of the sampling pipe is used for connecting the monitoring device;

the sampling pipeline is provided with at least three elbow bends in sequence between two ends, one end is a sampling port, and the other end is vertically butted with the lower end opening of the main pipeline through another elbow bend; and

and one end of the sample outlet pipeline is vertically connected to the middle part of the main pipeline, and the other end of the sample outlet pipeline is a sample outlet.

By adopting the structure, the sampling pipeline in front of the main pipeline is not provided with a branch, and is provided with at least three elbow bends. When the monitoring object flows through each elbow bend, on one hand, turbulent flow is generated, and deposition of impurities can be reduced; on the other hand, the flow rate is reduced, and the pressure is reduced, so that the sampling tube is beneficial to extraction and sampling. The more elbow bends are arranged, the length of a sample introduction pipeline is prolonged in a limited space, and a certain amount of monitoring objects are retained, so that a preset pressure difference is not required to be kept between the sample outlet and the sample inlet all the time.

Optionally, the online sampler is used for online monitoring of water quality, the pretreatment unit is at least one stage of filter, and three elbow bends are sequentially arranged between two ends of the sample introduction pipeline.

Optionally, the pretreatment unit is arranged at the connection position of the main pipeline and the sample injection pipeline.

Optionally, the sample inlet pipeline is located on two planes perpendicular to each other, and the sample outlet pipeline and a part of the sample inlet pipeline are coplanar.

Optionally, the sample inlet and the sample outlet: the orientations are consistent, and the central axes of the two are horizontally arranged and are parallel to each other.

Optionally, the sample injection pipeline and the lower half part of the main pipeline form a U-shaped pipeline with an upward opening from a second elbow bend in the middle to the position where the sample injection pipeline is connected with the main pipeline, and the U-shaped pipeline comprises at least one transparent straight pipe.

By adopting the structure, a certain amount of liquid monitoring objects can be retained in the U-shaped pipeline, and the observation is convenient. Therefore, for monitoring the water quality, the preset fluid pressure difference between the sample outlet and the sample inlet is not required to be kept all the time, and a certain amount of water sample is also contained in the pipeline when the sampling pump is stopped.

Optionally, the pipelines of the sample inlet and the sample outlet are respectively provided with a movable joint.

Optionally, a valve is respectively arranged on the pipeline of the sample inlet and the pipeline of the sample outlet.

Optionally, the sampling tube is connected and communicated with the pretreatment unit through a hose.

Optionally, the hose is resilient.

By implementing the technical scheme of the application, the following beneficial effects can be obtained;

the application discloses an online sampler for online monitoring of fluid. In the online sampler, one end of a sampling pipe is positioned in a vertical main pipeline and is connected with a pretreatment unit; at least three elbow bends are arranged between two ends of the sample injection pipeline, and the sample injection pipeline is vertically butted with the lower end opening of the main pipeline through another elbow bend; the sample outlet pipeline is vertically connected to the middle part of the main pipeline. The on-line sampler has a simple structure, is convenient to assemble and disassemble and durable, and can also keep a certain amount of monitoring objects in the pipeline all the time.

Drawings

The following drawings should be considered in conjunction with the detailed description. In the drawings:

FIG. 1 is a front view of one embodiment of the present application;

FIG. 2 is a perspective view of the embodiment shown in FIG. 1;

fig. 3 is another perspective view of the embodiment of fig. 1 with the main conduit partially broken away.

In the drawings, each reference numeral represents:

10-a main pipeline, 11-a lower part of the main pipeline, 12-an upper part of the main pipeline, 13-a sealing element, 14-a sampling pipe, 15-a hose, 16-a pretreatment unit, 20-a sample introduction pipeline, 30-a sample outlet pipeline, 41-a first right-angle bent pipe, 42-a second right-angle bent pipe, 43-a third right-angle bent pipe, 44-a fourth right-angle bent pipe, 45-a fifth right-angle bent pipe, 51-a tee joint, 61-a union joint, 801-a sample inlet straight pipe, 802-a sample outlet straight pipe and 803-a valve.

Detailed Description

For a fuller understanding of the contents of the present application, reference should be made to the following description taken in conjunction with the accompanying drawings.

In the present specification: the directional indicators "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner" and "outer" are based on the viewing angle presented in the figures.

One embodiment of the present application is an in-line sampler.

The online sampler is used for online monitoring of water quality. Referring to fig. 1, the on-line sampler includes a main pipeline 10, a sample inlet pipeline 20, and a sample outlet pipeline 30.

Referring to fig. 2 and 3, the main pipeline 10 is vertically disposed. The top end of the main line 10 is sealingly fixed with a sampling tube 14 by a sealing member 13. One end of the sampling tube 14 extends down inside the main pipeline 10 and is connected to a pre-processing unit 16. The other end of the sampling tube 14 is used to connect to a monitoring device.

Specifically, the main pipe 10 includes a main pipe upper portion 12 and a main pipe lower portion 11. The main pipe upper part 12 and the main pipe lower part 11 are both a section of straight pipe.

Three elbow bends are arranged between two ends of the sample inlet pipeline 20. The right-angle bends are specifically a first right-angle bend 41, a second right-angle bend 42 and a third right-angle bend 43. One end of the sample inlet pipeline 20 is a sample inlet A1, and the other end is vertically butted with the lower end opening of the main pipeline 10 through a right-angle bent pipe 44.

One end of the sample outlet pipeline 30 is vertically connected to the middle part of the main pipeline 10 through a tee 51, and the other end is a sample outlet A2. A right-angle elbow, specifically a right-angle elbow 45, is disposed between the two ends of the sampling pipeline 30. Depending on the usage scenario, the sampling pipe 30 may not have any elbow bends, or may have other types of bent portions.

A predetermined fluid pressure difference can be maintained between the sample outlet A2 and the sample inlet A1. Specifically, a sampling pump is arranged in front of the sample inlet A1, and the sampling pump can provide a to-be-detected water sample for a plurality of online samplers; the sample outlet A2 can return to a pipeline and a container where a water sample to be detected is located, and can also be discharged into a recovery container.

With the above structure, one end of the sampling pipe 14 is positioned in the vertical main pipeline 10 and is connected with the pretreatment unit 16; three elbow bends are sequentially arranged between two ends of the sample injection pipeline 20, and are vertically butted with the lower end opening of the main pipeline 10 through the elbow bends 44; the sample outlet pipe 30 is vertically connected to the middle of the main pipe 10. Therefore, when the monitoring object flows through each elbow bend of the sample injection pipeline 20, on one hand, turbulence is generated, and deposition of contained impurities can be reduced; on the other hand, the flow rate is reduced, and the pressure is reduced, so that the sampling tube 14 is beneficial to extraction and sampling. Compared with the existing online sampler, the sampling pipeline 20 of the online sampler is not provided with any branch, and has simple structure, convenient assembly and disassembly and durability.

The sample inlet line 20 is located on two planes perpendicular to each other. The central axis of the sample inlet A1 is horizontally arranged. The sample inlet pipeline 20 includes a portion of the sample inlet A1, and is coplanar with the sample outlet pipeline 30. Sample inlet A1 and sample outlet A2: the orientations are uniform and the central axes are parallel to each other.

By adopting the structure, the pipeline where the monitoring object is located can be conveniently connected, and the overall structure is simple.

The sample inlet pipeline 20 extends from the second elbow bend in the middle to the position where the sample inlet pipeline is connected to the main pipeline 10 (lower end), and forms a U-shaped pipeline with an upward opening with the lower half part of the main pipeline 10, and the U-shaped pipeline comprises a transparent straight pipe. Specifically, the lower main pipe portion 11 of the main pipe 10 is a transparent straight pipe.

By adopting the structure, a certain amount of water sample can be retained in the U-shaped pipeline, and observation is convenient. Therefore, a preset pressure difference does not need to be kept between the sample outlet and the sample inlet all the time, and a certain amount of water sample also exists in the pipeline when the sampling pump is stopped.

The pre-treatment unit 16 is a filter with only one stage, and is located at the connection of the main pipeline 10 and the sample injection pipeline 20. Namely: the pre-treatment unit 16 is located at least partially within the vertical portion of the right angle elbow 44.

By adopting the structure, the pretreatment unit 16 is arranged at the connection part of the main pipeline 10 and the sample injection pipeline 20, and the attachments on the pretreatment unit 16 can be cleaned by using the turbulent flow of the right-angled elbow at the connection part.

The sampling tube 14 is connected and communicated with a pretreatment unit 16 through a hose 15. The hose 15 is a flexible plastic tube. Specifically, the hose 15 is a silicone rubber tube.

By adopting the structure, the sealed communication between the sampling pipe 14 and the pretreatment unit 16 can be ensured, and the sealing structure can be prevented from being damaged due to water flow vibration.

The pipelines of the sample inlet A1 and the sample outlet A1 are as follows: each provided with a loose joint 61. A valve 803 is arranged on the sample inlet straight pipe 801 between the sample inlet A1 and the adjacent movable joint 61. Another valve 803 is arranged on the sample outlet straight pipe 802 between the sample outlet A2 and the adjacent movable joint 61.

With the above structure, the movable joint 61 and the valve 803 facilitate the assembly and disassembly of the online sampler. Valve 803 may also be used to control the flow of water. When a plurality of the on-line samplers share one pump to obtain the monitoring object, the flow rate can be individually adjusted.

In other embodiments, the on-line sampler is used for on-line monitoring of recovered oil or industrial organic solvents after wastewater treatment. The pre-treatment unit 16 may be a two-stage filtration filter or a water oil separator. The three straight pipe parts of the U-shaped pipeline are all transparent straight pipes.

In other embodiments, the online sampler is used for online monitoring of industrial waste gas or atmosphere. In the on-line sampler, the pretreatment unit 16 is a three-stage air filter, and four, five or six elbow bends may be arranged between two ends of the sample introduction pipeline 20. Correspondingly, the sampling pipeline 20 may have different portions respectively located on a plurality of planes, for example, the surrounded space area is a rectangular parallelepiped; or a flat plate shape lying entirely on one plane. With the structure, more elbow bends are arranged between two ends of the sample introduction pipeline 20, the length of the sample introduction pipeline 20 is prolonged in a limited space, and more gas-state monitoring objects can be retained, so that a preset pressure difference is not required to be kept between the sample outlet and the sample inlet all the time.

In other embodiments, the central axis of the sample inlet A1 may be vertically disposed, and the sample inlet A1 and the sample outlet A2: may be oppositely oriented and the central axes may have an angle of intersection.

All the above embodiments are intended to introduce the technical concepts and features of the present application to enable those skilled in the art to understand and implement the technical solutions of the present application, but not to limit the scope of the present application in any way. Simple modifications and equivalents of the above-described embodiments are within the scope of the present application.

Claims

1. An on-line sampler for on-line monitoring of a fluid, comprising:

2. The on-line sampler of claim 1, wherein the on-line sampler is used for monitoring water quality on line, the pretreatment unit is at least one stage of filter, and three right-angle bends are sequentially arranged between two ends of the sample introduction pipeline.

3. An online sampler according to claim 2 wherein the pre-treatment unit is provided at the junction of the main conduit and the sample introduction conduit.

4. The on-line sampler of claim 3, wherein the sample inlet line is located on two planes perpendicular to each other, and the sample outlet line is coplanar with a portion of the sample inlet line.

5. The in-line sampler of claim 4, wherein the sample inlet and the sample outlet are: the orientations are consistent, and the central axes of the two are horizontally arranged and are parallel to each other.

6. The on-line sampler of claim 4, wherein the sample inlet pipeline, from the second elbow bend in the middle to the position where the sample inlet pipeline is connected with the main pipeline, forms an upward-opening U-shaped pipeline with the lower half part of the main pipeline, and the U-shaped pipeline comprises at least one transparent straight pipe.

7. The on-line sampler of claim 1, wherein the pipeline of the sample inlet and the pipeline of the sample outlet are respectively provided with a movable joint.

8. The on-line sampler of claim 1 wherein the sample inlet and the sample outlet are each provided with a valve in the piping.

9. The in-line sampler of claim 1, wherein the sampling tube is connected to and in communication with the pretreatment unit via a hose.

10. An in-line sampler according to claim 9 in which the hose is flexible.