Online sampling tube

Abstract

The utility model discloses an on-line sampling pipe which comprises a drainage pipe, a vertical pipe is installed on the annular surface of the drainage pipe, a ball valve is installed in the vertical pipe, the rotating end of the ball valve penetrates through the vertical pipe and extends out of the vertical pipe, and a first flange is installed at the end, away from the drainage pipe, of the vertical pipe. A second flange is installed on the annular surface of the water pumping pipe, the second flange and the first flange are fixed through screws, a sealing piece is installed in the vertical pipe, and the water pumping pipe penetrates through the ball valve and the sealing piece and extends into the water drainage pipe. The ball valve is used for sealing the vertical pipe to prevent liquid in the drainage pipe from flowing out, and when sampling is needed, the ball valve is opened to insert and extend the water pumping pipe into the drainage pipe, so that the water pumping pipe is prevented from pumping air to influence detection data during sampling; the first flange and the second flange are used for sealing the vertical pipe, so that liquid is prevented from flowing out during sampling.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of water quality detection, and specifically relates to an online sampling pipe. Background Technique

[0002] The sampling pipe is a pipe used for water quality extraction. The sampling pipe of the residual chlorine analyzer at the outlet of the first-stage sand filter of Chonghai Water Plant is installed on two DN1800 pipes leading to the clear water tank. Since there is air above the pipe, there is a lot of air in the sampling of the inlet pipe of the first-stage residual chlorine analyzer, the residual value fluctuates greatly and is on the low side, resulting in a relatively large dosage of sodium hypochlorite, increasing chlorine consumption, and there is a risk that the residual gas in the factory water exceeds the internal control index of 1mg / L. Therefore, a new type of sampling pipe is needed. Content of the Utility Model

[0003] The technical solution of the utility model aims at the technical problem that the existing technical solution is too single, and provides a solution significantly different from the existing technology. It mainly provides an online sampling pipe to solve the technical problems of a lot of air in sampling, large fluctuation and low value of the residual value proposed in the above background technique.

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0005] An online sampling pipe includes a drain pipe. A vertical pipe is installed on the circumferential surface of the drain pipe. A ball valve is installed in the vertical pipe. The rotating end of the ball valve penetrates through the vertical pipe and extends outside the vertical pipe. A first flange is installed at one end of the vertical pipe away from the drain pipe. A water suction pipe with one end communicated with the input end of a water pump is inserted into one end of the vertical pipe away from the drain pipe. A second flange is installed on the circumferential surface of the water suction pipe. The second flange and the first flange are fixed by screws. A sealing member is installed in the vertical pipe. The water suction pipe passes through the ball valve and the sealing member and extends into the drain pipe.

[0006] Preferably, the sealing member includes a round plate installed in the vertical pipe. A round hole is opened on the upper surface of the round plate. The water suction pipe is inserted into the round hole. A moving groove is opened on one side inside the round hole. A moving member is slidably connected in the moving groove. A through groove communicated with the moving groove is opened on the surface of the round plate away from the ball valve. One end of the moving member extends into the through groove.

[0007] Preferably, the moving member includes a moving plate with one end being semi-circular. The moving plate is inserted into the moving groove. A slope is cut on the end of the moving plate facing the round block. A baffle is installed at the end of the moving plate away from the round hole. One end of the baffle away from the end plate passes through the through groove and extends into the drain pipe.

[0008] Preferably, an arc groove is opened on one side inside the round hole away from the moving groove. The semi-circular surface of the moving plate is inserted into the arc groove.

[0009] Preferably, a round block is installed on the upper surface of the round plate, and a conical hole communicating with the round hole is formed on the upper surface of the round block.

[0010] Preferably, a connecting pipe is installed at one end of the water extraction pipe away from the drain pipe, and one end of the connecting pipe away from the water extraction pipe communicates with the input end of the water pump.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By installing a ball valve in the vertical pipe, the ball valve is used to seal the vertical pipe to prevent the liquid in the drain pipe from flowing out. When sampling is required, the ball valve is opened, and the water extraction pipe is inserted and extended into the drain pipe, so that the water extraction pipe can avoid drawing air during sampling, which affects the detection data. At the same time, after the water extraction pipe is inserted into the drain pipe, the first flange and the second flange seal the vertical pipe to avoid liquid outflow during sampling.

[0013] 2. By installing a sealing structure composed of a round plate, a moving plate and a baffle in the vertical pipe, the sealing structure is used to further seal the vertical pipe, reduce the amount of water flowing out of the ball valve when the water extraction pipe is inserted through the ball valve after the ball valve is opened, and after the water extraction pipe is inserted into the round hole, the inner wall of the round hole can be used to support the water extraction pipe to avoid the water extraction pipe shaking caused by water flow impact.

[0014] The following will combine the drawings with specific embodiments to explain the present utility model in detail. Description of the Drawings

[0015] Figure 1 is the assembly schematic diagram of the present utility model;

[0016] Figure 2 is the cross-sectional view of the present utility model;

[0017] Figure 3 is the Figure 2 enlarged schematic diagram at A of the present utility model.

[0018] Labels in the drawings:

[0019] 1. Drain pipe; 2. Ball valve; 3. Vertical pipe; 4. First flange; 5. Second flange; 6. Water extraction pipe; 7. Connecting pipe; 8. Round plate; 9. Arc groove; 10. Baffle; 11. Moving plate; 12. Inclined plane; 13. Round block. Detailed Embodiments

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer specifically to the attached Figures 1-3 , an on-line sampling tube, comprising a drain pipe 1, which is an ND1800 steel pipe (with a diameter of 1.8 meters). A vertical pipe 3 is installed on the annular surface of the drain pipe 1. The vertical pipe 3 is an ND100 steel pipe (with a diameter of 10 cm). The vertical pipe 3 and the drain pipe 1 can be installed by welding. A ball valve 2 is installed in the vertical pipe 3. The rotating end of the ball valve 2 penetrates through the vertical pipe 3 and extends outside the vertical pipe 3. A first flange 4 is installed at one end of the vertical pipe 3 away from the drain pipe 1. A water suction pipe 6 with one end communicating with the input end of the water pump is inserted at one end of the vertical pipe 3 away from the drain pipe 1. The water suction pipe 6 is an ND20 steel pipe (with a diameter of 2 cm). A second flange 5 is installed on the annular surface of the water suction pipe 6. The second flange 5 and the first flange 4 are fixed by screws.

[0024] The ball valve 2 is used to seal the vertical pipe 3 to prevent the liquid in the drain pipe 1 from flowing out. When sampling is required, the ball valve 2 is opened, and the water suction pipe 6 is inserted and extended into the drain pipe 1, so that the water suction pipe 6 can avoid drawing air during sampling, which may affect the test data. At the same time, after the water suction pipe 6 is inserted into the drain pipe 1, the first flange 4 and the second flange 5 seal the vertical pipe 3 to prevent the liquid from flowing out during sampling.

[0025] A circular plate 8 is installed in the vertical pipe 3. A round hole is opened on the upper surface of the circular plate 8. The water extraction pipe 6 passes through the ball valve 2 and the round hole and extends into the drain pipe 1. A moving groove is opened on one side within the round hole. A moving plate 11 is slidably connected within the moving groove. One end of the moving plate 11 facing the round block 13 is cut with an inclined surface 12. A baffle 10 is installed at the end of the moving plate 11 away from the round hole. A through groove communicating with the moving groove is opened on the side of the circular plate 8 away from the ball valve 2. The baffle 10 is slidably connected within the through groove and the baffle 10 extends into the drain pipe 1.

[0026] The vertical pipe 3 is further sealed by using the sealing structure composed of the circular plate 8, the moving plate 11 and the baffle 10, reducing the amount of water flowing out from the ball valve 2 when the water extraction pipe 6 is inserted into the ball valve 2 after the ball valve 2 is opened. And after the water extraction pipe 6 is inserted into the round hole, the inner wall of the round hole can be used to support the water extraction pipe 6, avoiding the shaking of the water extraction pipe 6 caused by the impact of water flow.

[0027] In order to increase the sealing performance of the moving plate 11 to the round hole, an arc groove 9 is opened on the side within the round hole away from the moving groove. The semi-circular surface of the moving plate 11 is inserted into the arc groove 9.

[0028] In order to enable the water extraction pipe 6 to be accurately inserted into the round hole, a round block 13 is installed on the upper surface of the circular plate 8. A tapered hole communicating with the round hole is opened on the upper surface of the round block 13.

[0029] An installation connecting pipe 7 is opened at the end of the water extraction pipe 6 away from the drain pipe 1. The connecting pipe 7 is a PVC pipe. The end of the connecting pipe 7 away from the water extraction pipe 6 communicates with the input end of the water pump.

[0030] The specific operation process of this utility model is as follows: Set the water extraction pipe 6 above the vertical pipe 3. Then open the ball valve 2 and insert the water extraction pipe 6 from the ball valve 2. Then insert it into the round hole from the tapered hole on the round block 13 and squeeze the inclined surface 12 of the moving plate 11 to make the moving plate 11 move to the side away from the round hole. Then the water extraction pipe 6 enters the drain pipe 1 and is inserted 1.5 meters into the drain pipe 1. At this time, the first flange 4 contacts the second flange 5 and is fixed with screws. Then start the water pump to pump out the liquid in the drain pipe 1 through the water extraction pipe 6 and the connecting pipe 7 for sampling.

[0031] When the sampling is completed, remove the screws of the first flange 4 and the second flange 5 for separation. After the water extraction pipe 6 is taken out from the drain pipe 1, at this time, the baffle 10 drives the moving plate 11 to re-seal the round hole under the impact of water flow, and then close the ball valve 2 to seal the vertical pipe 3.

[0032] The above description of the present utility model with reference to the accompanying drawings is exemplary. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. An on-line sampling tube, comprising a drain pipe (1), characterized in that: A vertical pipe (3) is installed on the annular surface of the drain pipe (1). A ball valve (2) is installed inside the vertical pipe (3). The rotating end of the ball valve (2) penetrates through the vertical pipe (3) and extends outside the vertical pipe (3). A first flange (4) is installed at one end of the vertical pipe (3) away from the drain pipe (1). A water suction pipe (6) with one end communicating with the water pump input end is inserted into one end of the vertical pipe (3) away from the drain pipe (1). A second flange (5) is installed on the annular surface of the water suction pipe (6). The second flange (5) and the first flange (4) are fixed by screws. A sealing member is installed inside the vertical pipe (3). The water suction pipe (6) passes through the ball valve (2) and the sealing member and extends into the drain pipe (1).

2. The on-line sampling tube according to claim 1, characterized in that: The sealing member includes a circular plate (8). The circular plate (8) is installed inside the vertical pipe (3). A circular hole is opened on the upper surface of the circular plate (8). The water suction pipe (6) is inserted into the circular hole. A moving groove is opened on one side inside the circular hole. A moving member is slidably connected inside the moving groove. A through groove communicating with the moving groove is opened on one side of the circular plate (8) away from the ball valve (2). One end of the moving member extends into the through groove.

3. An on-line sampling tube according to claim 2, characterized in that: The moving member includes a moving plate (11) with one end being semi-circular. The moving plate (11) is inserted into the moving groove. A slope (12) is cut at one end of the moving plate (11) facing the circular block (13). A baffle (10) is installed at one end of the moving plate (11) away from the circular hole. One end of the baffle (10) away from one end plate passes through the through groove and extends into the drain pipe (1).

4. An on-line sampling tube according to claim 3, characterized in that: An arc-shaped groove (9) is opened on one side of the circular hole away from the moving groove. The semi-circular side of the moving plate (11) is inserted into the arc-shaped groove (9).

5. An on-line sampling tube according to claim 3, characterized in that: A circular block (13) is installed on the upper surface of the circular plate (8). A tapered hole communicating with the circular hole is opened on the upper surface of the circular block (13).

6. An on-line sampling tube according to claim 1, characterized in that: A connecting pipe (7) is installed at one end of the water suction pipe (6) away from the drain pipe (1). One end of the connecting pipe (7) away from the water suction pipe (6) communicates with the water pump input end.

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