An auxiliary control device for the liquid level of an absorption tower

Abstract

This utility model relates to the technical field of auxiliary control devices for absorber tower liquid levels, and discloses an auxiliary control device for absorber tower liquid levels, comprising: a rinsing water tank, with a filtrate tank fixedly arranged on one side of the rinsing water tank, and a sealing water tank arranged on the side of the rinsing water tank away from the filtrate tank for storing sealing water; and a filter cloth rinsing recovery water tank, arranged below the rinsing water tank, with a filtrate water tank arranged on one side of the filter cloth rinsing recovery water tank for storing filtrate water. The water in the sealing water tank is bidirectionally distributed through a recovery pipe and an external discharge pipe: the recovery pipe introduces water into the filter cloth rinsing recovery water tank for use in filter cloth rinsing and other process steps, realizing the recycling of water resources; the external discharge pipe guides excess water into the filtrate water tank, which is then treated and discharged, avoiding water waste while ensuring that the drainage meets environmental protection standards.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary control devices for absorber level, specifically an auxiliary control device for absorber level. Background Technology

[0002] The liquid level in the wet desulfurization absorption tower is a key indicator of the desulfurization system, and its stable control is crucial for desulfurization efficiency, gypsum quality, and equipment safety. However, due to factors such as temperature, liquid level control is difficult. If the liquid level is too low, it will compress the oxidation reaction space, affect gypsum quality, and cause equipment vibration damage; if it is too high, it will reduce desulfurization efficiency, cause overflow pollution, and both high and low liquid levels will disrupt the system's water balance.

[0003] Traditional control methods have obvious limitations: In terms of process stability, single-valve regulation response is lagging, making it difficult to cope with sudden changes in operating conditions. Liquid level deviation exceeding ±5% affects absorption efficiency or causes overflow. In terms of water resource utilization, sealing water lacks dynamic allocation, resulting in waste from external discharge or the need to replenish fresh water, increasing costs. In terms of manpower and precision, manual adjustment is intensive, has low precision, and is prone to loss of control, requiring 2-3 shutdowns for maintenance per month. Furthermore, it cannot control chloride ions, exacerbating corrosion and shortening equipment replacement cycles by more than 30%.

[0004] With the upgrading of environmental protection requirements and the development of intelligent processes, there is an urgent need for an auxiliary control device for the liquid level of the absorption tower. This device can optimize the airflow path to reduce wind resistance through high-precision control of the liquid level of the absorption tower, water resource recycling, and low human intervention, while also taking into account the usage needs under different airflow environments. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an auxiliary control device for the liquid level of an absorption tower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary control device for the liquid level of an absorption tower, comprising: a flushing water tank, a filter liquid tank fixedly arranged on one side of the flushing water tank, and a sealing water tank arranged on the side of the flushing water tank away from the filter liquid tank for placing sealing water.

[0007] The filter cloth rinsing and recovery water tank is located below the rinsing water pool, and a filtrate water tank is arranged on one side of the filter cloth rinsing and recovery water tank for storing filtered water.

[0008] As a further description of the above technical solution:

[0009] One end of the sealed water tank is connected to a recycling pipe, and the end of the recycling pipe away from the sealed water tank passes through the rinsing water tank and connects to the filter cloth rinsing recycling water tank. One side of the sealed water tank is connected to an external drain pipe, and the end of the external drain pipe away from the sealed water tank passes through the rinsing water tank and the filtrate tank and connects to the filtrate water tank for drainage.

[0010] As a further description of the above technical solution:

[0011] A recovery tower is fixed at one end of the filter cloth rinsing and recovery water tank for recovering the rinsing liquid;

[0012] One end of the filtrate tank is fixedly provided with an external drain port for discharging filtrate water.

[0013] As a further description of the above technical solution:

[0014] The flushing water tank is equipped with an electric three-way valve, which is connected to the external drain pipe and the recovery pipe respectively, and is used to control the sealing water.

[0015] As a further description of the above technical solution:

[0016] When the liquid level inside the recovery tower is lower than five meters, the electric three-way valve is activated to control the sealing water inside the sealing water pool to flow into the filter cloth rinsing recovery water tank and the recovery tower through the recovery pipe.

[0017] Once the liquid level inside the recovery tower exceeds five meters, the electric three-way valve is activated to control the sealing water inside the sealed water tank to flow into the filtrate water tank and the external discharge port through the external discharge pipe, thereby reducing the chloride ion content inside the recovery tower.

[0018] This utility model has the following beneficial effects:

[0019] 1. The liquid level in the recovery tower is automatically controlled via an electric three-way valve: When the liquid level is below 5 meters, the electric three-way valve guides the sealing water from the sealing water tank into the filter cloth flushing recovery water tank and the recovery tower through the recovery pipe, replenishing the liquid level in a timely manner; when the liquid level is above 5 meters, it switches to the external discharge pipe to guide the sealing water into the filtrate water tank and discharge it through the external discharge port, preventing the recovery tower liquid level from being too high and affecting operation. Through the liquid level-triggered automatic switching mechanism, the recovery tower liquid level can be maintained stably without manual intervention, ensuring the related processes of the absorption tower.

[0020] 2. The water in the sealed water tank is distributed in two directions through the recycling pipe and the discharge pipe: the recycling pipe introduces water into the filter cloth washing recycling water tank for filter cloth washing and other process steps, realizing the recycling of water resources; the discharge pipe introduces excess water into the filtrate water tank, which is then treated and discharged, avoiding water waste while ensuring that the drainage meets environmental protection standards and reducing the pressure of sewage discharge. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an auxiliary control device for the liquid level of an absorption tower according to this utility model. Legend: 1. Rinsing water tank; 2. Filtrate tank; 3. Sealing water tank; 4. Recovery pipe; 5. Filter cloth rinsing and recovery water tank; 6. External discharge pipe; 7. Filtrate tank; 8. Electric three-way valve; 9. Recovery tower; 10. External discharge port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figure 1 As shown, the absorption tower liquid level auxiliary control device provided in this embodiment includes: a flushing water tank 1, a filter liquid tank 2 fixedly arranged on one side of the flushing water tank 1, and a sealing water tank 3 arranged on the side of the flushing water tank 1 away from the filter liquid tank 2 for placing sealing water.

[0025] The filter cloth rinsing and recovery water tank 5 is arranged below the rinsing water pool 1, and a filtrate water tank 7 is arranged on one side of the filter cloth rinsing and recovery water tank 5 for storing filtered water.

[0026] In this embodiment, each pool and tank stores liquids of different qualities, and coordinates the liquid level in the absorption tower to achieve auxiliary liquid level control and ensure the stable operation of the absorption tower.

[0027] Understandable, Figure 1 The subject matter is shown only schematically, and the actual shape, size, location, and construction of these components are not subject to change. Figure 1 The limitations mean that the topics can also include those that are more... Figure 1 More or fewer parts.

[0028] Specifically, one end of the sealed water tank 3 is connected to a recycling pipe 4, and the end of the recycling pipe 4 away from the sealed water tank 3 passes through the rinsing water tank 1 and connects to the filter cloth rinsing recycling water tank 5. One side of the sealed water tank 3 is connected to an external drain pipe 6, and the end of the external drain pipe 6 away from the sealed water tank 3 passes through the rinsing water tank 1 and the filtrate tank 2 and connects to the filtrate tank 7 for drainage.

[0029] In this embodiment, the recovery pipe 4 transports the water in the sealed water tank 3 to the filter cloth washing recovery water tank 5, and the external discharge pipe 6 transports the water to the filtrate water tank 7, realizing liquid transportation through different paths and flexibly adjusting the water volume distribution.

[0030] Specifically, a recovery tower 9 is fixedly installed at one end of the filter cloth rinsing and recovery water tank 5 for recovering the rinsing liquid;

[0031] One end of the filtrate tank 7 is fixedly provided with an external drain port 10 for discharging filtrate water.

[0032] In a preferred embodiment, the recovery tower 9 recovers the rinsing liquid from the filter cloth rinsing recovery water tank 5, and the external discharge port 10 discharges the filtrate water from the filtrate water tank 7. Effect: This achieves the recovery and utilization of rinsing liquid and the discharge of filtrate, optimizing water resource allocation.

[0033] Specifically, the flushing water tank 1 is equipped with an electric three-way valve 8, which is connected to the external drain pipe 6 and the recovery pipe 4 respectively, for controlling the sealing water.

[0034] It should be noted that the electric three-way valve 8 switches the passage by rotating the valve core, controlling the flow of sealing water into the external drain pipe 6 or the recovery pipe 4, precisely controlling the sealing water delivery path, and responding to liquid level adjustment needs.

[0035] Specifically, when the liquid level inside the recovery tower 9 is below five meters, the electric three-way valve 8 is activated to control the sealing water inside the sealing water tank 3 to flow into the filter cloth rinsing recovery water tank 5 and the recovery tower 9 through the recovery pipe 4; when the liquid level inside the recovery tower 9 is above five meters, the electric three-way valve 8 is activated to control the sealing water inside the sealing water tank 3 to flow into the filtrate water tank 7 and the external discharge port 10 through the external discharge pipe 6, in order to reduce the chloride ion content inside the recovery tower 9.

[0036] As a preferred implementation method, the electric three-way valve 8 automatically switches the passage according to the liquid level height of the recovery tower 9, adjusts the water volume balance, maintains the stability of the liquid level of the recovery tower 9, and reduces the internal chloride ion content.

[0037] When the device is working, the flow direction of the sealing water in the sealing water tank 3 is regulated by the electric three-way valve 8. When the liquid level in the recovery tower 9 is lower than five meters, the electric three-way valve 8 switches to the recovery pipeline 4, and the sealing water flows into the filter cloth washing recovery water tank 5 through the recovery pipeline, and then enters the recovery tower 9 to replenish the liquid level, so as to meet the process water needs such as filter cloth washing.

[0038] If the liquid level in recovery tower 9 is higher than five meters, the electric three-way valve 8 switches to the external discharge pipe 6, and the sealing water flows sequentially through the filter liquid tank 2 and the filter liquid water tank 7, finally being discharged from the external discharge port 10, reducing the chloride ion content in the recovery tower. The entire process automatically switches according to the liquid level in the recovery tower, realizing water resource recycling and stable liquid level control.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary control device for the liquid level of an absorption tower, characterized in that: include: A rinsing water tank (1) is provided, and a filter liquid tank (2) is fixedly arranged on one side of the rinsing water tank (1). A sealing water tank (3) is arranged on the side of the rinsing water tank (1) away from the filter liquid tank (2) for placing sealing water. A filter cloth rinsing and recovery water tank (5) is arranged below the rinsing water pool (1), and a filtrate water tank (7) is arranged on one side of the filter cloth rinsing and recovery water tank (5) for storing filtered water.

2. The absorber tower liquid level auxiliary control device according to claim 1, characterized in that: One end of the sealed water tank (3) is connected to a recycling pipe (4), and the end of the recycling pipe (4) away from the sealed water tank (3) passes through the rinsing water tank (1) and connects to the filter cloth rinsing recycling water tank (5). One side of the sealed water tank (3) is connected to an external drain pipe (6), and the end of the external drain pipe (6) away from the sealed water tank (3) passes through the rinsing water tank (1) and the filtrate tank (2) and connects to the filtrate tank (7) for drainage.

3. The absorber tower liquid level auxiliary control device according to claim 2, characterized in that: A recovery tower (9) is fixedly installed at one end of the filter cloth rinsing and recovery water tank (5) for recovering the rinsing liquid; One end of the filtrate tank (7) is fixedly provided with an external drain (10) for discharging filtrate water.

4. The absorber tower liquid level auxiliary control device according to claim 3, characterized in that: An electric three-way valve (8) is arranged on the flushing water tank (1), and the electric three-way valve (8) is connected to the external drain pipe (6) and the recovery pipe (4) respectively, for controlling the sealing water.

5. The absorber tower liquid level auxiliary control device according to claim 4, characterized in that: When the liquid level inside the recovery tower (9) is lower than five meters, the electric three-way valve (8) is activated to control the sealing water inside the sealing water tank (3) to flow into the filter cloth rinsing recovery water tank (5) and the recovery tower (9) through the recovery pipe (4); After the liquid level inside the recovery tower (9) is higher than five meters, the electric three-way valve (8) is activated to control the sealing water inside the sealed water tank (3) to flow into the filtrate tank (7) and the external discharge port (10) through the external discharge pipe (6) to reduce the chloride ion content inside the recovery tower (9).

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