CN211189669U - Overflow pipe anti-blocking device of wet desulphurization absorption tower and wet desulphurization absorption tower - Google Patents

Abstract

The utility model discloses an overflow pipe anti-clogging device of a wet desulfurization absorption tower, comprising: a flushing pipeline, a water inlet control valve, a flow meter, a pressure gauge and a water outlet control valve; wherein, one end of the flushing pipeline is flushing water The inlet and the other end are connected to the overflow pipe of the tower body of the wet desulfurization absorption tower. The flushing pipeline is provided with a pressure gauge, a flow meter and a water inlet control valve in sequence; the outlet water control valve is set on the overflow pipe and is connected to the flushing pipeline. on the overflow pipe below. The device is provided with a flushing pipeline connected to the overflow pipe on the tower body of the absorption tower, and a pressure gauge, a flowmeter and a water inlet control valve are arranged in sequence on the flushing pipeline, and a water outlet control valve is set at the outlet end of the overflow pipe. , Through the flushing pipeline and the water outlet control valve, the overflow pipe can be easily flushed, so as to avoid the blockage of the overflow pipe and various problems caused by the blockage of the overflow pipe.

Description

Anti-clogging device for overflow pipe of wet desulfurization absorption tower and wet desulfurization absorption tower

technical field

The utility model relates to the field of wet desulfurization absorption towers, in particular to an overflow pipe anti-clogging device of a wet desulfurization absorption tower and a wet desulfurization absorption tower.

Background technique

The existing wet desulfurization absorption tower is provided with an overflow pipe. When the absorption tower operates at a high liquid level, distortion of the liquid level gauge, foaming, tripping of the oxidation fan during operation, and increase of the spray volume are likely to occur, which often cause absorption. The tower overflows. When the absorption tower overflows, it will normally be discharged to the pit through the overflow pipe. After overflowing, there will be partial sedimentation of the slurry at the connection between the overflow pipe and the tower wall. After multiple overflows, the overflow pipe will be connected to the tower wall. The accumulation of sediment at the place will cause the connection between the overflow pipe and the tower wall to be blocked for a long time. When the overflow pipe is blocked and then overflow occurs, since it cannot be discharged from the overflow pipe, a large amount of slurry will be poured back through the original flue gas inlet. At the inlet of the induced draft fan, the light one will cause the induced draft fan to trip due to the reduction of the inlet flow area, and the serious one will cause the damage of the induced draft fan blade.

Utility model content

Based on the problems existing in the prior art, the purpose of this utility model is to provide an overflow pipe anti-clogging device of a wet desulfurization absorption tower and a wet desulfurization absorption tower, which can solve the clogging of the overflow pipe of the existing wet desulfurization absorption tower. , to avoid the problem caused by the overflow pipe blocking a large amount of slurry through the original flue gas inlet to the inlet of the induced draft fan.

The purpose of this utility model is to realize through the following technical solutions:

The embodiment of the present utility model provides an overflow pipe anti-clogging device of a wet desulfurization absorption tower, comprising:

Flushing lines, inlet water control valves, flow meters, pressure gauges and outlet water control valves; of which,

One end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence;

The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected.

Embodiments of the present utility model further provide a wet desulfurization absorption tower, comprising: a tower body and an overflow pipe connected to the tower body, and further comprising: an overflow pipe anti-clogging device;

The overflow pipe anti-clogging device includes: a flushing pipeline, a flow meter, a pressure gauge and a water outlet control valve;

Wherein, the overflow pipe anti-clogging device includes: a flushing pipeline, a water inlet control valve, a flow meter, a pressure gauge and a water outlet control valve;

Wherein, one end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence;

The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected.

It can be seen from the technical solutions provided by the above utility model that the overflow pipe anti-clogging device of the wet desulfurization absorption tower and the wet desulfurization absorption tower provided by the embodiment of the present utility model have the following beneficial effects:

By setting a flushing pipeline connected to the overflow pipe on the tower body of the absorption tower, and setting a pressure gauge, a flow meter and a water inlet control valve in sequence on the flushing pipeline, and at the same time setting a water outlet control valve at the water outlet of the overflow pipe, through the The flushing pipeline is matched with the water outlet control valve, which can easily flush the overflow pipe, avoid the blockage of the overflow pipe, and avoid various problems caused by the blockage of the overflow pipe.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the schematic diagram of the overflow pipe anti-clogging device of the wet desulfurization absorption tower provided by the embodiment of the utility model;

The symbols in the figure are: 1- flushing pipeline; 2- water inlet control valve; 3- flow meter; 4- pressure gauge; 5- water outlet control valve; 6- overflow pipe; 7- water sealing tank; 8- tower body; 9 - original flue gas inlet; 10 - induced draft fan; A - flushing water inlet; B - liquid level.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. Contents that are not described in detail in the embodiments of the present invention belong to the prior art known to those skilled in the art.

As shown in Figure 1, the embodiment of the present utility model provides an overflow pipe anti-clogging device of a wet desulfurization absorption tower, including:

Flushing lines, inlet water control valves, flow meters, pressure gauges and outlet water control valves; of which,

One end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence;

The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected.

The water inlet control valve and the water outlet control valve of the above-mentioned overflow pipe anti-clogging device are preferably electric butterfly valves. It is convenient to realize automatic control of flushing overflow pipe.

Preferably, the pressure gauge, the flow meter and the water inlet control valve are sequentially arranged on the flushing pipeline according to the water inflow direction of the flushing pipeline. In this way, when the overflow pipe overflows normally, the overflow liquid can be isolated through the water inlet control valve to avoid flowing into the flushing pipeline.

Referring to FIG. 1 , an embodiment of the present utility model further provides a wet desulfurization absorption tower, comprising: a tower body and an overflow pipe connected to the tower body, and further comprising: an overflow pipe anti-clogging device;

The overflow pipe anti-clogging device includes: a flushing pipeline, a water inlet control valve, a flow meter, a pressure gauge and a water outlet control valve;

Wherein, one end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence;

The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected.

The water inlet control valve and the water outlet control valve of the above-mentioned overflow pipe anti-clogging device are preferably electric butterfly valves. It is convenient to realize automatic control of flushing overflow pipe.

Preferably, the pressure gauge, the flow meter and the water inlet control valve are sequentially arranged on the flushing pipeline according to the water inflow direction of the flushing pipeline. In this way, when the overflow pipe overflows normally, the overflow liquid can be isolated through the water inlet control valve to avoid flowing into the flushing pipeline.

The utility model can flush the overflow pipe in time after the overflow pipe overflows, and realize the online Solve the clogging problem of the overflow pipe of the wet desulfurization absorption tower. In practical application, the device can solve the problem of online judgment of whether it is fully blocked or partially blocked, and can process it to complete smoothness on-line. Part of the fixed value of the pressure and flow data indicates a partial blockage, and a complete deviation from this fixed value is a complete blockage.

The embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

As shown in FIG. 1 , an embodiment of the present utility model provides a device for preventing clogging of an overflow pipe of a wet desulfurization absorption tower. The device includes: a flushing pipeline, a water inlet control valve, a flow meter, a pressure gauge and a water outlet control valve; Among them, the water outlet control valve adopts an electric butterfly valve, which is located at the outlet end of the overflow pipe; the flushing pipeline is connected to the upper end of the overflow pipe, and an electric butterfly valve (as the water inlet control valve), a flow meter and a pressure gauge are arranged on the flushing pipeline in sequence. When using this device for flushing, close the electric butterfly valve on the overflow pipe as the water outlet control valve, open the electric butterfly valve on the flushing pipeline as the water inlet control valve, and judge by the readings of the pressure gauge and flowmeter to control the flushing, if the flushing is stopped normally, High pressure and low flow indicate a blockage. Extend the flushing time until normal. (According to the different diameters of the overflow pipes of each absorption tower, the diameter of the flushing pipes introduced into the flushing water can be set. After installation, the pressure and flow data can be obtained through tests as fixed values, as long as the flushing of the overflow pipes can be guaranteed to be completed. Yes), by setting this device, the overflow pipe can be flushed immediately after overflowing. During regular flushing, the pressure and flow rate can be used to determine whether it is blocked, and timely treatment can ensure the reliable operation of the absorption tower. At present, the device has been tested in the confidential state of Yingkou Power Plant. Worked well for over a year.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (4)

1. an overflow pipe anti-clogging device of a wet desulfurization absorption tower, is characterized in that, comprises: Flushing lines, inlet water control valves, flow meters, pressure gauges and outlet water control valves; of which, One end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence; The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected. 2 . The overflow pipe anti-clogging device of a wet desulfurization absorption tower according to claim 1 , wherein the water inlet control valve and the water outlet control valve both use electric butterfly valves. 3 . 3. A wet desulfurization absorption tower, comprising: a tower body and an overflow pipe connected on the tower body, characterized in that, also comprising: an overflow pipe anti-clogging device; The overflow pipe anti-clogging device includes: a flushing pipeline, a water inlet control valve, a flow meter, a pressure gauge and a water outlet control valve; Wherein, one end of the flushing pipeline is a flushing water inlet, and the other end is connected to the overflow pipe of the tower body of the wet desulfurization absorption tower, and a pressure gauge, a flow meter and a water inlet control valve are arranged on the flushing pipeline in sequence; The water outlet control valve is arranged on the overflow pipe, and is located on the overflow pipe below where the flushing pipeline is connected. 4 . The wet desulfurization absorption tower according to claim 3 , wherein the water inlet control valve and the water outlet control valve both use electric butterfly valves. 5 .

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