Liquid level monitoring mechanism of waste gas washing tower

Abstract

The utility model discloses a waste gas washing tower liquid level monitoring mechanism which comprises a water level pipe located on one side of a box body, a liquid level sensor is arranged on the water level pipe, a sediment box is arranged between the bottom end of the water level pipe and the bottom of a water tank, and a water inlet pipe communicated with the bottom of the water tank is arranged on the side face of the sediment box. A top port on the other side of the settling tank is communicated with a water level pipe, a sediment discharge pipe is arranged at the bottom of the settling tank, a valve is arranged on the sediment discharge pipe, and sediment is further settled through the settling tank, so that sediment entering the water level pipe is greatly reduced, and then the detection precision of the electrode liquid level meter is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste gas treatment equipment, and more specifically relates to a liquid level monitoring mechanism for a waste gas scrubbing tower. Background Technology

[0002] A waste gas scrubbing tower is a device used to purify industrial waste gas. Its working principle is to use the contact between gas and liquid to transfer pollutants in the gas to the liquid, thereby enabling the gas to meet atmospheric emission standards. The waste gas scrubbing tower is equipped with a level gauge to monitor the liquid level in the scrubbing tower water tank, which facilitates technical replenishment and drainage.

[0003] For example, the patent technology with publication number CN209221827U discloses an exhaust gas scrubbing tower and its water tank. The liquid level gauge is set outside the tank, and the lower end of the water level pipe is connected to the bottom of the tank, so that the liquid level in the water level pipe is consistent with the liquid level in the tank. That is, impurities are isolated by the water level pipe, reducing false alarms caused by foam and sediment in the liquid level gauge, improving the accuracy of liquid level measurement, and making the exhaust gas scrubbing tower operate more stably.

[0004] However, sediment will accumulate at the bottom of the chamber. In the aforementioned patented technology, the water level pipe is placed at the bottom of the chamber, causing the sediment to enter the bottom of the water level pipe, thereby blocking the connection between the water level pipe and the chamber, affecting the flow of the liquid in the water level pipe, and affecting the detection accuracy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a liquid level monitoring mechanism for a waste gas scrubbing tower, which can significantly reduce the impact of sediment in the scrubbing tower on detection accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a liquid level monitoring mechanism for a waste gas scrubbing tower, comprising a water level pipe located on one side of the tank, a liquid level sensor installed on the water level pipe, a sedimentation tank installed between the bottom end of the water level pipe and the bottom of the water tank, an inlet pipe connected to the bottom of the water tank installed on the side of the sedimentation tank, a top port connected to the water level pipe on the other side of the sedimentation tank, a sedimentation discharge pipe installed at the bottom of the sedimentation tank, and a valve installed on the sedimentation discharge pipe.

[0007] Furthermore, the sedimentation tank is equipped with a push rod corresponding to the water inlet pipe. One end of the push rod extends into the sedimentation tank, and a push plate is provided on the extended end. The push rod is slidably connected to the sedimentation tank in a sealed manner.

[0008] Furthermore, the lower end face of the push plate is flush with the lower half of the inner wall of the water inlet pipe.

[0009] Furthermore, the sedimentation tank is equipped with a drive mechanism that connects to the push rod.

[0010] Furthermore, the sedimentation tank is provided with a partition, one end of which extends into the sedimentation tank and is slidably connected to the sedimentation tank.

[0011] Compared with the prior art, the beneficial effect of this utility model is that a sedimentation tank is set between the water level pipe and the tank body. The sediment temporarily suspended in the liquid due to the liquid flow in the tank body will further settle after entering the sedimentation tank, thereby greatly reducing the amount of sediment entering the water level pipe and thus reducing the detection accuracy of the electrode level gauge. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the liquid level monitoring mechanism of the exhaust gas scrubbing tower of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the waste gas scrubbing tower liquid level monitoring mechanism when the sedimentation tank is separated by a partition.

[0014] Figure 3 This is a schematic diagram of the push plate being pushed out in the liquid level monitoring mechanism of the exhaust gas scrubbing tower of this utility model.

[0015] Attached reference numerals: 1. Box body; 2. Water level pipe; 3. Liquid level sensor; 4. Sedimentation tank; 5. Water inlet pipe; 6. Sediment discharge pipe; 7. Valve; 8. Push rod; 9. Push plate; 10. Baffle plate. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0018] Reference Figures 1 to 3 The present invention will be further described below.

[0019] A liquid level monitoring mechanism for an exhaust gas scrubbing tower includes a water level pipe 2 located on one side of a housing 1, a liquid level sensor 3 installed on the water level pipe 2, a sedimentation tank 4 installed between the bottom end of the water level pipe 2 and the bottom of the water tank, an inlet pipe 5 connected to the bottom of the water tank 4 on the side of the sedimentation tank 4, a top port connected to the water level pipe 2 on the other side of the sedimentation tank 4, a sediment discharge pipe 6 installed at the bottom of the sedimentation tank 4, and a valve 7 installed on the sediment discharge pipe 6.

[0020] like Figure 1 As shown, a sedimentation tank 4 is set between the water level pipe 2 and the tank 1. The sediment temporarily suspended in the liquid due to the liquid flow in the tank 1 is further settled after entering the sedimentation tank 4, thereby greatly reducing the amount of sediment entering the water level pipe 2, and thus reducing the detection accuracy of the electrode level gauge.

[0021] like Figure 1 and Figure 3 As shown in this example, preferably, the sedimentation tank 4 is provided with a push rod 8 corresponding to the water inlet pipe 5. One end of the push rod 8 extends into the sedimentation tank 4, and a push plate 9 is provided on the extended end. The push rod 8 is slidably connected to the sedimentation tank 4 in a sealed manner. The push rod 8 can be pushed periodically to move the push plate 9 inside the sedimentation tank 4 toward the water inlet pipe 5. After entering the water inlet pipe 5, the push plate 9 pushes the sediment in the water inlet pipe 5 toward the tank body 1 to prevent the sediment from clogging the water inlet pipe 5.

[0022] like Figure 3 As shown, in this example, preferably, the lower end face of the push plate 9 is flush with the lower half of the inner wall of the water inlet pipe 5, so as to push the sediment in the water inlet pipe 5 into the box 1.

[0023] In this example, preferably, the sedimentation tank 4 is provided with a drive mechanism that connects to the push rod 8. The drive mechanism can be an electric push rod or a cylinder, or the push rod 8 can be pushed manually.

[0024] like Figure 1 and Figure 2 As shown in this example, preferably, the sedimentation tank 4 is provided with a partition 10, one end of which extends into the sedimentation tank 4 and is slidably connected to the sedimentation tank 4.

[0025] Specifically, when it is necessary to discharge the sediment in the sedimentation tank 4, first push the partition 10 into the sedimentation tank 4 so that the three sides of the partition 10 abut against the three inner walls of the sedimentation tank 4, thereby separating the interior of the sedimentation tank 4. Then open the valve 7 on the sediment discharge pipe 6 at the bottom of the sedimentation tank 4 to discharge the sediment, thereby avoiding a large amount of liquid being discharged with the sediment and reducing the amount of liquid loss.

[0026] Specifically, sealing grooves are provided on the three inner walls of the sedimentation tank 4. After the partition plate 10 extends into the sedimentation tank 4, its three sides enter the three sealing grooves, dividing the interior of the sedimentation tank 4 into an upper space and a lower space.

[0027] Specifically, the seal of the partition 10 does not need to be completely sealed, but only to reduce the large amount of liquid in the upper space flowing rapidly into the lower space.

[0028] Specifically, the discharge of sediment in sedimentation tank 4 requires that the height of the sediment being pushed is less than the distance between the partition 10 and the bottom surface of sedimentation tank 4.

[0029] Specifically, the partition 10 and the sedimentation tank 4 are sealed and slide together, requiring a high degree of sealing to prevent liquid leakage.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A liquid level monitoring mechanism for a waste gas scrubbing tower, characterized in that: The system includes a water level pipe located on one side of the tank, a liquid level sensor installed on the water level pipe, a sedimentation tank located between the bottom end of the water level pipe and the bottom of the water tank, an inlet pipe connected to the bottom of the water tank on the side of the sedimentation tank, a top port connected to the water level pipe on the other side of the sedimentation tank, a sedimentation discharge pipe located at the bottom of the sedimentation tank, and a valve installed on the sedimentation discharge pipe.

2. The waste gas scrubbing tower liquid level monitoring mechanism according to claim 1, characterized in that: The sedimentation tank is equipped with a push rod corresponding to the water inlet pipe. One end of the push rod extends into the sedimentation tank, and a push plate is provided on the extended end. The push rod is slidably connected to the sedimentation tank in a sealed manner.

3. The waste gas scrubbing tower liquid level monitoring mechanism according to claim 2, characterized in that: The lower end face of the push plate is flush with the lower half of the inner wall of the water inlet pipe.

4. The waste gas scrubbing tower liquid level monitoring mechanism according to claim 2, characterized in that: The sedimentation tank is equipped with a drive mechanism that connects to the push rod.

5. The waste gas scrubbing tower liquid level monitoring mechanism according to claim 1, characterized in that: The sedimentation tank is equipped with a partition, one end of which extends into the sedimentation tank and is slidably connected to it.

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