Circulating pipeline of sampling device

Abstract

The utility model discloses a circulating pipeline of a sampling device, which comprises a back plate, a filter box is connected onto the back plate, a plurality of pipelines for water inlet and water outlet are connected onto the filter box, electromagnetic valves for blocking are connected onto the pipelines, each pipeline comprises a backwash pipe, one end of each backwash pipe is communicated with the filter box, and the other end of each backwash pipe is communicated with the filter box. The other end of the back-flushing pipe is connected with a pump, and when the back-flushing pipe works, the water flow direction of the pipeline used for water inflow is changed into the reverse direction; according to the utility model, the back-flushing pipeline is arranged to work, during cleaning, reverse flow is carried out through the back-flushing pipeline, so that impurities are driven to be discharged reversely, dirt accumulation in the pipeline is reduced, grease is controlled through the electromagnetic valve, different pipelines can be separated independently, and the back-flushing pipeline can conveniently and correspondingly flush the other pipeline which is not sealed.

Description

Technical Field

[0001] The utility model relates to the technical field related to water circulation pipelines, in particular to a circulation pipeline of a sampling device. Background Art

[0002] During the industrial processing process, wastewater or reaction solutions will be circulated and discharged. The ion concentration level in the solution can accurately reflect different problems that arise during the processing, thereby ensuring the normal operation of the production process and conducting regulation.

[0003] Existing equipment directly draws samples from the circulation pipeline for testing, and filters impurities during the sampling process to facilitate subsequent work. However, impurities are likely to remain after multiple filtration operations, and corresponding dirt is likely to accumulate inside the filter device and pipeline, affecting the circulation of water and the normal progress of the filtration work. Utility Model Content

[0004] The purpose of the utility model is to provide a circulation pipeline of a sampling device, which solves the problem that dirt is easily accumulated in the pipeline during continuous use and the pipeline is inconvenient to clean.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A circulation pipeline of a sampling device includes a backplate, a filter box is connected to the backplate, a plurality of pipelines for water inlet and outlet are connected to the filter box, a solenoid valve for blocking is connected to the pipeline, and the pipeline includes a backflush pipe, one end of the backflush pipe is connected to the filter box, and the other end of the backflush pipe is connected to a pump. When the backflush pipe is working, the water flow direction of the pipeline for water inlet becomes reversed.

[0007] Beneficial effects: By setting up a backflush pipeline to work, when cleaning, the backflush pipeline is used for reverse flow, thereby driving the reverse discharge of impurities and reducing the accumulation of dirt in the pipeline. The solenoid valve controls the grease so that different pipelines can be isolated separately, making it convenient for the backflush pipeline to perform a corresponding flushing effect on another unsealed pipeline.

[0008] Furthermore, the pipeline also includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the filter box.

[0009] Furthermore, a filter cavity is provided in the filter box, a filter screen is provided in the filter cavity, the water inlet pipe and the water outlet pipe are respectively located on both sides of the filter screen, and the backwash pipe and the water outlet pipe are on the same side.

[0010] Furthermore, the filter cavity is also connected to a sampling tube, and the sampling tube and the water outlet pipe are located on the same side.

[0011] Furthermore, the sampling tube is located above the filter box.

[0012] Furthermore, the water inlet pipe, the water outlet pipe, and the backwash pipe are all located below the filter box.

[0013] Furthermore, the water inlet pipe and the water outlet pipe have the same diameter, and the diameter of the water inlet pipe is larger than the diameter of the backwash pipe.

[0014] Furthermore, a clamp is connected to the back plate, and the clamp is used to fix the water inlet pipe, the backwash pipe, and the water outlet pipe.

[0015] Furthermore, the water inlet pipe is connected to a first solenoid valve, and the water outlet pipe is connected to a second solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a side structural diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of a sampling box according to an embodiment of the present invention;

[0019] Figure numerals: 11, back plate; 12, sampling box; 13, sampling tube; 14, clamp; 21, water inlet pipe; 22, auxiliary pipe; 23, water outlet pipe; 31, first solenoid valve; 32, second solenoid valve; 33, pump; 41, filter chamber; 42, filter screen. DETAILED DESCRIPTION

[0020] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0021] See Figures 1 to 3 As shown, a circulation pipeline of a sampling device includes a back plate 11, which is a connecting plate. The pipeline is installed as a whole on the back plate 11. At the same time, the back plate 11 can also be connected to a cabinet, etc. as a connecting piece to ensure the integrity of the pipeline and improve the convenience of pipeline installation.

[0022] Among them, the back plate 11 is connected to a filter box 12, and the filter box 12 is connected to several pipes for water inlet and outlet. The pipes are provided with several lines. The filter box 12 is used to connect the pipes and filter the water samples inside the pipes. The filter box 12 is provided with a filter cavity 41, and the water sample flows and connects in the filter cavity 41.

[0023] The pipeline includes an inlet pipe 21, a backwash pipe 22, an outlet pipe 23, and a sampling tube 13, wherein one end of the inlet pipe 21 and the outlet pipe 23 are connected to the interior of the filter chamber 41, and the other end of the inlet pipe 21 and the outlet pipe 23 are connected to the external main pipeline to be sampled. The inlet pipe 21 and the outlet pipe 23 form a bypass branch of the main pipeline through the filter box 12, which facilitates the continuous circulation of water samples, ensures the effectiveness of the water samples and the internal pressure of the filter chamber 41.

[0024] One end of the sampling tube 13 is connected to the filter cavity 41 , and the other end of the sampling tube 13 is connected to an external detection mechanism. The sampling tube 13 is used to transmit the water sample to the external detection mechanism.

[0025] Since the water sample required by the detection mechanism cannot contain impurities, and the water sample directly coming in from the main pipe contains particulate impurities that affect the detection work, a filter screen 42 is provided in the filter chamber 41. The filter screen 42 is used to filter the water sample entering the water inlet pipe 21. Therefore, the filter screen 42 is located between the water inlet pipe 21 and the water outlet pipe 23. At the same time, the filtering work serves the sampling tube 13. Therefore, the water outlet pipe 23 and the sampling tube 13 are on the same side, and the water sample filtered by the filter screen 42 can enter the sampling tube 13.

[0026] Furthermore, in order to ensure the effect of impurity precipitation, the filter box 12 is fixed above the back plate 11, the sampling tube 13 extends above the filter box 12, and the water outlet pipe 23 and the water inlet pipe 21 are both located below the filter box 12. During the transmission process, impurities will also be partially precipitated due to the effect of gravity, reducing the filtering pressure of the filter screen 42.

[0027] The backflush pipe 22 is used for reverse transmission of water flow. One end of the backflush pipe 22 is connected to the filter chamber 41, and the other end of the backflush pipe 22 is connected to a pump 33 outside the filter box 12. The pump 33 pressurizes the backflush pipe 22 to transmit water flow, causing the water flow to flow in the reverse direction. The water flow in the water inlet pipe 21 and the filter chamber 41 begins to circulate in the reverse direction, and the water flow reversely enters the water inlet pipe 21 and then returns to the main pipe. In order to remove the residue left on the filter screen 42 after filtration, the backflush pipe 22 and the water outlet pipe 23 are located on the same side of the filter screen 42. When the water flow in the backflush pipe 22 enters the filter chamber 41 and flows in the reverse direction, it can also take away impurities on the filter screen 42, thereby achieving a reverse cleaning effect.

[0028] Since the impurities in the filter screen 42 and the water inlet pipe 21 are all sediments, in order to ensure the flushing effect, the backflush pipe 22 is pressurized by the pump 33 to perform the transmission work. In order to further promote the work of the backflush pipe 22, the backflush pipe 22, the water outlet pipe 23, and the water inlet pipe 21 are all located below the filter box 12. The backflush pipe 22 further accumulates potential energy during the water discharge process, increases the intensity of the impact force, and ensures the cleaning effect.

[0029] Meanwhile, the diameters of the water inlet pipe 21 and the water outlet pipe 23 are the same, and the diameter of the backflushing pipe 22 is smaller than that of the water inlet pipe 21 , so as to increase the impact force of the backflushing pipe 22 .

[0030] Since the water outlet pipe 23 and the water inlet pipe 21 are both located in the filter chamber 41, the water outlet pipe 23 is likely to divert part of the pressure when the water inlet pipe 21 is undergoing a pressurized flushing process, resulting in insufficient cleaning. Therefore, the present application includes a solenoid valve for blocking, and a first solenoid valve 31 is connected to the water inlet pipe 21, and a second solenoid valve 32 is connected to the water outlet pipe 23. The first solenoid valve 31 and the second solenoid valve 32 are both normally open solenoid valves. When the pump 33 is working, the first solenoid valve 31 and the second solenoid valve 32 can work separately to achieve pressurized flushing of the water outlet pipe 23 or the water inlet pipe 21, ensuring that impurities are flushed away.

[0031] A clamp 14 is connected to the back plate 11, and the clamp 14 is used to fix the water inlet pipe 21, the backflush pipe 22, and the water outlet pipe 23. The clamp 14 is used to stabilize the water inlet pipe 21, the backflush pipe 22, and the water outlet pipe 23 to reduce vibration during water sample transmission. The clamp 14 is provided with two groups, and the clamps 14 are symmetrically arranged up and down to clamp and fix the pipes. At the same time, the first battery valve 31 and the second solenoid valve 32 are both located between the upper and lower clamps 14, and the influence between the first battery valve 31 and the second solenoid valve 32 between opening and closing will also be reduced.

[0032] In the above scheme, the first solenoid valve 31 and the second solenoid valve 32 are in a normally open state during operation. The water inlet pipe 21 is directly introduced into the filter chamber 41 inside the filter box 12 for operation. After passing through the filter mesh 42, the water is directly discharged from the water outlet pipe 23 and then returns to the main pipeline, ensuring that the water pressure in the pipeline is stable and not easily affected, thereby ensuring normal operation.

[0033] At the same time, when sampling is required, the sampling tube 13 is operated by an external pump to extract the water sample in the filter chamber 41. The water sample is filtered through the filter screen 42, and then enters the sampling tube 13 upward and is discharged. During the discharge process, even if there are impurities that are not fully cleaned, they will be partially precipitated due to gravity during the upward flow, which supplements the work of the filter screen 42.

[0034] On the other hand, after the filtration sampling work is carried out, the internal impurities will be cleaned regularly. At this time, the pump 33 works to pump water toward the backflush pipe 22. At the same time, the pump 33 can also be set as an air pump to control the movement of water flow in the filter chamber 41 by air pressure. Since the outlet pipe 23 and the inlet pipe 21 are both passages, the passage is limited by controlling the operation of the first solenoid valve 31 and the second solenoid valve 32, thereby controlling the flushing of the one-way outlet pipe 23 and the inlet pipe 21.

[0035] When flushing the water inlet pipe 21, the solution or gas transmitted from the backflush pipe 22 can clean the filter 42. During filtering, impurities will only adhere to the side of the filter 42 close to the water inlet pipe 21. When flushing the water inlet pipe 21, the impurities on the filter 42 can also fall off in the reverse direction and flow into the water inlet pipe 21, thereby ensuring the cleaning effect inside the water inlet pipe 21.

[0036] The above embodiments merely represent specific implementation methods of the present application. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the present application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the technical concept of the present application, and these modifications and improvements are all within the scope of protection of the present application.

Claims

1. A circulation pipeline of a sampling device, comprising a back plate (11), characterized in that: The back plate (11) is connected to a filter box (12), and a plurality of pipes for water inlet and outlet are connected to the filter box (12). The pipes are connected to electromagnetic valves for blocking. The pipes include a backwash pipe (22), one end of the backwash pipe (22) is connected to the filter box (12), and the other end of the backwash pipe (22) is connected to a pump (33). When the backwash pipe (22) is in operation, the water flow direction of the pipe for water inlet becomes reversed.

2. The circulation pipeline of the sampling device according to claim 1, characterized in that: The pipeline further comprises a water inlet pipe (21) and a water outlet pipe (23), and both the water inlet pipe (21) and the water outlet pipe (23) are in communication with the filter box (12).

3. The circulation pipeline of the sampling device according to claim 2, characterized in that: A filter chamber (41) is provided in the filter box (12), a filter screen (42) is provided in the filter chamber (41), the water inlet pipe (21) and the water outlet pipe (23) are respectively located on both sides of the filter screen (42), and the backwash pipe (22) and the water outlet pipe (23) are on the same side.

4. The circulation pipeline of the sampling device according to claim 3, characterized in that: The filter cavity (41) is further connected to a sampling tube (13), and the sampling tube (13) and the water outlet pipe (23) are located on the same side.

5. The circulation pipeline of the sampling device according to claim 4, characterized in that: The sampling tube (13) is located above the filter box (12).

6. The circulation pipeline of the sampling device according to claim 2, characterized in that: The water inlet pipe (21), the water outlet pipe (23), and the backwash pipe (22) are all located below the filter box (12).

7. The circulation pipeline of the sampling device according to claim 6, characterized in that: The water inlet pipe (21) and the water outlet pipe (23) have the same diameter, and the water inlet pipe (21) has a larger diameter than the backwash pipe (22).

8. The circulation pipeline of the sampling device according to claim 2, characterized in that: A clamp (14) is connected to the back plate (11), and the clamp (14) is used to fix the water inlet pipe (21), the backwash pipe (22), and the water outlet pipe (23).

9. The circulation pipeline of the sampling device according to claim 6, characterized in that: The water inlet pipe (21) is connected to a first solenoid valve (31), and the water outlet pipe (23) is connected to a second solenoid valve (32).

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