Chlorine-containing brine closed sampling device

Abstract

The utility model relates to a chlorine-containing saline water closed sampling device which comprises a sampling barrel, an exhaust pipe is arranged on the top side of the sampling barrel, the exhaust pipe is communicated with an air pump, the air outlet end of the air pump is communicated with a waste gas recovery device, a liquid inlet pipe is arranged on the top of the outer side wall of the sampling barrel, a liquid inlet valve is arranged on the liquid inlet pipe, and one end of the liquid inlet pipe arranged in the sampling barrel is communicated with an elbow. A sampling opening is formed in the middle of the outer side wall of the sampling barrel, a cover plate is rotationally arranged on the outer side wall of the sampling barrel through a hinge, a buckling strip is rotationally connected to the outer side wall of the end, away from the hinge, of the cover plate through a rotating bolt, and a clamping plate is arranged on the outer side wall of the sampling barrel. The gas flow direction in the sampling barrel is that the gas enters the sampling barrel through the sampling port and then is exhausted through the exhaust pipe, so that chlorine gas escaping during sampling is sucked out by the gas pump along the gas flow direction and is finally recovered by the waste recovery device, and the chlorine gas escaping during sampling is prevented from being directly exposed in the external environment.

Description

Technical Field

[0001] This utility model relates to the field of chlor-alkali electrolysis technology, specifically to a closed sampling device for chlorinated brine. Background Technology

[0002] Currently, the chlor-alkali electrolysis process involves numerous intermediate tests, with frequent sampling and analysis of the brine entering and exiting the electrolytic cell. The brine from the electrolytic cell contains a large amount of chlorine, a toxic and harmful gas that can endanger personnel's health, damage the respiratory mucosa, and in severe cases, pose a life-threatening risk. Traditional sampling methods involve using sampling bottles to collect chlorine directly from the sampling port. Each time a sample is taken, some chlorine escapes from the sampling port, thus affecting the health of sampling personnel and polluting the work site environment. Utility Model Content

[0003] The purpose of this invention is to provide a closed sampling device for chlorinated saline water, which solves the problem that some chlorine gas escapes from the sampling port during each sampling in traditional sampling methods. This escaped chlorine gas not only affects the health of sampling personnel but also pollutes the work site environment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A closed sampling device for chlorinated saline water includes a sampling cylinder, an exhaust pipe connected to the interior of the sampling cylinder on its top side, an air pump connected to the exhaust pipe, and a waste gas recovery device connected to the outlet of the air pump. An inlet pipe connected to the interior of the sampling cylinder is located on the top of the outer wall of the sampling cylinder, and an inlet valve is provided on the inlet pipe. One end of the inlet pipe, inside the sampling cylinder, is connected to a bend with one end pointing vertically downwards. A sampling port is opened in the middle of the outer wall of the sampling cylinder. A cover plate for closing the sampling port is rotatably mounted on the outer wall of the sampling cylinder via a hinge. A fastening strip is rotatably connected to the outer wall of the cover plate away from the hinge via a rotating bolt. An L-shaped clamping plate is provided on the outer wall of the sampling cylinder to prevent the fastening strip from rotating around the hinge.

[0006] A further technical solution is to provide a sealing strip on the outer wall of the sampling cylinder that surrounds the sampling port.

[0007] A further technical solution is to have a magnet cut into the end of the buckle away from the rotating bolt, and to embed a magnetic block that attracts the magnet into the card plate.

[0008] A further technical solution is to have a handle at the end of the buckle furthest from the magnet.

[0009] A further technical solution is that the bottom wall of the sampling cylinder is recessed in the middle, and a liquid outlet pipe is embedded in the bottom wall of the sampling cylinder. One end of the liquid outlet pipe is connected to the lowest end of the bottom wall of the sampling cylinder, and the other end is placed outside and equipped with a liquid outlet valve.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By installing an air pump and a waste recovery device, the air pump draws out the gas from the sampling cylinder, causing the gas to flow in the direction that the gas enters the sampling cylinder through the sampling port and then exits through the exhaust pipe. This allows the chlorine gas that escapes during sampling to be drawn out by the air pump along with the gas flow direction and finally recovered by the waste recovery device. This prevents the chlorine gas that escapes during sampling from being directly exposed to the external environment, thus avoiding any impact on the health of sampling personnel and pollution of the work site environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the state structure of a closed sampling device for chlorinated salt water according to the present invention.

[0013] Figure 2 This is a schematic diagram of another state structure of the closed sampling device for chlorinated salt water according to this utility model.

[0014] Figure 3 This is a cross-sectional structural schematic diagram of a closed sampling device for chloride-containing saline solution according to the present invention.

[0015] Icons: 1-Sampling cylinder, 2-Exhaust pipe, 4-Rotating bolt, 5-Inlet pipe, 6-Inlet valve, 7-Elbow, 8-Sampling port, 9-Hinge, 10-Cover plate, 11-Snap strip, 12-Clamping plate, 13-Sealing strip, 14-Magnet, 15-Magnetic block, 16-Handle, 17-Outlet pipe, 18-Outlet valve, 19-Horizontal bar, 20-Vertical bar, 21-Base plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example:

[0018] See Figures 1 to 3This invention discloses a closed sampling device for chlorinated saline solution. The device includes a sampling cylinder 1, an exhaust pipe 2 connected to its interior on the top side of the sampling cylinder 1, an air pump connected to the exhaust pipe 2, and a waste gas recovery device connected to the air pump's outlet. An inlet pipe 5 connected to its interior is located on the top of the outer wall of the sampling cylinder 1, and an inlet valve 6 is installed on the inlet pipe 5. One end of the inlet pipe 5, inside the sampling cylinder 1, is connected to a bent end 7 with one end pointing vertically downwards. A sampling port 8 is located in the middle of the outer wall of the sampling cylinder 1. A cover plate 10 for closing the sampling port 8 is rotatably mounted on the outer wall of the sampling cylinder 1 via a hinge 9. It should be noted that when the cover plate 10 closes the sampling port 8, it interacts with the sampling... The side of the outer wall of the sample cylinder 1 that fits closely is the inner wall of the cover plate 10. The annular diameter of the inner wall of the cover plate 10 is the same as the annular diameter of the outer wall of the sample cylinder 1, so that when the cover plate 10 closes the sampling port 8, the inner wall of the cover plate 10 fits closely with the outer wall of the sample cylinder 1. A buckle 11 is rotatably connected to the outer wall of the cover plate 10 away from the hinge 9 by a rotating bolt 4. An L-shaped clamping plate 12 is provided on the outer wall of the sample cylinder 1 to prevent the buckle 11 from rotating around the hinge 9. It should be noted that the working principle of the waste gas recovery device for recovering chlorine gas discharged by the gas pump is existing technology and will not be described in detail here. At the same time, the liquid inlet pipe 5 can be connected to the electrolytic cell through a pipeline. The L-shaped clamping plate 12 is composed of a horizontal bar 19 and a vertical bar 20.

[0019] When the cover plate 10 needs to be used to close the sampling port 8, the cover plate 10 is rotated with the help of the hinge 9, so that the inner side of the cover plate 10 fits against the outer wall of the sampling cylinder 1. Then, the buckle 11 is rotated clockwise around the rotating bolt 4, so that the end of the buckle 11 away from the rotating bolt 4 rotates clockwise and is placed on the horizontal bar 19 of the clamping plate 12. The vertical bar 20 of the clamping plate 12 blocks the buckle 11, so that the buckle 11 will not rotate around the hinge 9, thereby preventing the cover plate 10 from rotating around the hinge 9. When the sampling port 8 is not closed, the cover plate 10 moves away from the sampling cylinder 1. When it is not necessary to close the sampling port 8 with the cover plate 10, the buckle 11 is rotated counterclockwise around the rotating bolt 4. The end of the buckle 11 away from the rotating bolt 4 slides upward away from the horizontal bar 19 of the clamping plate 12, so that the vertical bar 20 of the clamping plate 12 no longer blocks the buckle 11. The buckle 11 can rotate around the hinge 9, which can then pull the cover plate 10 to rotate away from the sampling cylinder 1 under the action of the hinge 9, so that the sampling port 8 is no longer closed.

[0020] When using this method, turn on the air pump and waste gas recovery device, rotate the cover plate 10 to open the sampling port 8, align the sampling bottle with the elbow 7, and open the liquid inlet valve 6 so that the chlorinated brine in the electrolytic cell enters the sampling bottle through the elbow 7. At this time, the air pump works to draw out the gas in the sampling cylinder 1, so that the gas flow direction in the sampling cylinder 1 is that the gas enters the sampling cylinder 1 through the sampling port 8 and then exits through the exhaust pipe 2. This allows the chlorine gas that escapes during sampling to be drawn out by the air pump along with the gas flow direction and finally recovered by the waste recovery device, preventing the chlorine gas that escapes during sampling from being directly exposed to the external environment, avoiding affecting the health of sampling personnel and polluting the work site environment. When the sampling bottle has taken a suitable amount of sample, close the liquid inlet valve 6, seal the sampling bottle in the sampling cylinder 1, and then take it out of the sampling cylinder 1. Then rotate the cover plate 10 to close the sampling port 8, and turn off the air pump and waste gas recovery device to complete the sampling.

[0021] Based on the foregoing embodiments, see [link to previous document]. Figures 1 to 3 As shown, a sealing strip 13 is protruding on the outer wall of the sampling cylinder 1 to surround the sampling port 8. By setting the sealing strip 13, when the sampling port 8 is closed, the cover plate 10 and the sealing strip 13 are tightly pressed together, which increases the sealing performance of the cover plate 10 when the sampling port 8 is closed. This prevents the residual chlorine gas in the sampling cylinder 1 from escaping through the gap between the cover plate 10 and the outer wall of the sampling cylinder 1 after the air pump stops working, thus avoiding affecting the health of the sampling personnel and polluting the work site environment.

[0022] Based on the foregoing embodiments, see [link to previous document]. Figures 1 to 3 As shown, a magnet 14 is inserted into the end of the buckle 11 away from the rotating bolt 4, and a magnetic block 15 that attracts the magnet 14 is embedded in the clamping plate 12. By setting the magnet 14 and the magnetic block 15, when the buckle 11 and the clamping plate 12 are engaged, the magnet 14 and the magnetic block 15 attract each other and generate a suction force, so that the buckle 11 can be stably engaged in the clamping plate 12, thereby ensuring the stable closure of the cover plate 10 to the sampling port 8 and preventing external impurities from entering the sampling cylinder 1 through the sampling port 8.

[0023] Based on the foregoing embodiments, see [link to previous document]. Figures 1 to 3 As shown, the end of the buckle 11 away from the magnet 14 is provided with a handle 16. By providing the handle 16, it is convenient for the operator to rotate the buckle 11 around the rotating bolt 4.

[0024] Based on the foregoing embodiments, see [link to previous document]. Figures 1 to 3As shown, the bottom wall of the sampling cylinder 1 is recessed in the middle. An outlet pipe 17 is embedded in the bottom wall of the sampling cylinder 1. One end of the outlet pipe 17 is connected to the lowest end of the bottom wall of the sampling cylinder 1, and the other end is exposed to the outside and equipped with an outlet valve 18. It should be noted that the outlet pipe 17 can be connected to a recovery tank through a pipe. When there is spilled chlorinated brine in the sampling cylinder 1 during use, the chlorinated brine flows along the bottom wall of the sampling cylinder 1 into the outlet pipe 17 and is discharged through the outlet pipe 17. It should be noted that the outlet pipe 17 can be connected to a recovery tank through a pipe, and the chlorinated brine discharged from the outlet pipe 17 is recovered through the recovery tank. The outlet valve 18 is provided to facilitate the control of the discharge of spilled chlorinated brine from the outlet pipe 17.

[0025] The bottom of the sampling tube 1 can be equipped with a base plate 21 to facilitate installation in the corresponding position.

[0026] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A closed sampling device for chloride-containing saline solution, characterized in that: The sample includes a sampling cylinder (1), on the top side of which is an exhaust pipe (2) connected to its interior. The exhaust pipe (2) is connected to an air pump, and the outlet end of the air pump is connected to a waste gas recovery device. The top of the outer wall of the sampling cylinder (1) is provided with an inlet pipe (5) connected to its interior. The inlet pipe (5) is provided with an inlet valve (6). One end of the inlet pipe (5) inside the sampling cylinder (1) is connected to a bend (7) with one end vertically downward. The sampling tube (1) has a sampling port (8) in the middle of its outer side wall. The outer side wall of the sampling tube (1) is provided with a cover plate (10) for closing the sampling port (8) by means of a hinge (9). The outer side wall of the cover plate (10) away from the hinge (9) is rotatably connected with a buckle (11) by means of a rotating bolt (4). The outer side wall of the sampling tube (1) is provided with an L-shaped clamping plate (12) for preventing the buckle (11) from rotating around the hinge (9).

2. The closed sampling device for chloride-containing saline solution according to claim 1, characterized in that: A sealing strip (13) is provided on the outer wall of the sampling tube (1) surrounding the sampling port (8).

3. The closed sampling device for chloride-containing saline water according to claim 1, characterized in that: A magnet (14) is cut into one end of the buckle (11) away from the rotating bolt (4), and a magnetic block (15) that attracts the magnet (14) is embedded in the card plate (12).

4. The closed sampling device for chloride-containing saline water according to claim 3, characterized in that: The end of the buckle (11) away from the magnet (14) is provided with a handle (16).

5. The closed sampling device for chloride-containing saline solution according to claim 1, characterized in that: The sampling tube (1) has a recessed bottom wall in the middle. A liquid outlet pipe (17) is embedded in the bottom wall of the sampling tube (1). One end of the liquid outlet pipe (17) is connected to the lowest end of the bottom wall of the sampling tube (1), and the other end is placed outside and equipped with a liquid outlet valve (18).

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