Integrated Venturi reactor for improving efficiency of desulfurizing tower and desulfurizing tower

Abstract

The utility model relates to the field of environmental protection, and discloses an integrated Venturi reactor for improving the efficiency of a desulfurizing tower, which comprises two end plates, and a first pipeline layer consists of a plurality of first pipelines which are horizontally arranged side by side; the second pipeline layer is composed of a plurality of second pipelines which are horizontally arranged side by side, and the first pipeline layer is located above the second pipeline layer; the distance between every two adjacent first pipelines is smaller than the gap between every two adjacent second pipelines. The first pipeline is longer than the second pipeline; and the end plate is bent to form a shelving surface which can be shelved on an external horizontal cross beam. According to the reactor, the two layers of pipelines are fixed between the two end plates, the gaps between the upper layer of pipelines and the lower layer of pipelines are controlled to be different, and meanwhile, the end plates form steps capable of being placed on the cross beams, so that the Venturi reactor can better realize uniform distribution of gas, and meanwhile, the two layers of pipelines can be fixed through one layer of cross beams. Meanwhile, the utility model further discloses a desulfurizing tower.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, specifically to an integrated Venturi reactor and desulfurization tower for improving the efficiency of desulfurization towers. Background Technology

[0002] With the release of the "Emission Standard of Air Pollutants for Thermal Power Plants" (GB13223-2011), the state has imposed further restrictions on the concentration of air pollutants compared to the past. Specifically, except for thermal power boilers using W-shaped flame furnaces, existing circulating fluidized bed thermal power boilers, and thermal power boilers that were built and put into operation or whose environmental impact reports were approved before December 31, 2003, are subject to a emission standard of 200 mg / m³. 3 Except for the rest, all were administered at 100 mg / m². 3 Meanwhile, Article 4.4 of the standard sets a limit of 100 mg / m³ for coal-fired boilers in key areas. 3 The new environmental standards have placed higher demands on the desulfurization performance of small and medium-sized power units in the market; the desulfurization effect can be improved by adding a Venturi reactor.

[0003] In the original design, the multi-layered pipes that make up the Venturi reactor are fixed on crossbeams at different heights. If the existing process is modified, it means that an additional crossbeam needs to be added to the current desulfurization tower. However, most desulfurization towers have special anti-corrosion layers (glass flakes or rubber lining) inside. Welding during the modification is likely to cause safety accidents such as fires and damage the original tower structure and flakes.

[0004] Therefore, the technical problem to be solved in this case is: how to utilize the existing internal beams of the tower to set up a Venturi reactor containing multiple layers of pipes. Utility Model Content

[0005] The purpose of this invention is to solve the above problems and provide an integrated Venturi reactor for improving the efficiency of desulfurization towers. The reactor has two layers of pipes fixed between two end plates. By controlling the gap between the upper and lower layers of pipes to be different, and at the same time making the end plates form steps that can be placed on the crossbeam, the Venturi reactor can achieve better gas uniformity while fixing the two layers of pipes through a crossbeam.

[0006] In addition, this utility model also discloses a desulfurization tower.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An integrated Venturi reactor for improving the efficiency of a desulfurization tower includes two end plates, with a first pipe layer and a second pipe layer fixed between the two end plates. The first pipe layer consists of multiple horizontally arranged first pipes, and the second pipe layer consists of multiple horizontally arranged second pipes. The first pipe layer is located above the second pipe layer. The distance between two adjacent first pipes is smaller than the distance between two adjacent second pipes. The length of the first pipe is longer than the length of the second pipe. The end plates are bent to form a support surface that can be placed on an externally arranged horizontal beam.

[0009] Meanwhile, this utility model also discloses a desulfurization tower, including a tower body, with an exhaust gas inlet at the bottom of the tower body; multiple crossbeams are arranged side by side inside the tower body; the crossbeams are located near the exhaust gas inlet; and multiple integrated Venturi reactors as described above are placed on adjacent crossbeams.

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

[0011] This invention integrates two pipe layers between two end plates, with the two pipe layers having different lengths so that the end plates can form a horizontal support surface to rest on an external crossbeam. In this way, two pipe layers can be fixed on a single crossbeam, effectively reducing construction difficulty and improving flue gas purification effect. Attached Figure Description

[0012] Figure 1 This is the front view of Embodiment 1;

[0013] Figure 2 This is a top view of the integrated Venturi reactor with a rectangular structure according to Example 1;

[0014] Figure 3 This is a top view of the trapezoidal integrated Venturi reactor of Example 1;

[0015] Figure 4 This is a top view of the gas redistribution layer in Example 2;

[0016] Figure 5 This is a front view of the gas redistribution layer in Example 2;

[0017] Figure 6 This is the front view of Embodiment 2. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Example 1

[0020] refer to Figure 1 An integrated Venturi reactor for improving the efficiency of a desulfurization tower includes two end plates 1, with a first pipe layer and a second pipe layer fixed between the two end plates 1; the first pipe layer consists of multiple horizontally arranged first pipes 2; the second pipe layer consists of multiple horizontally arranged second pipes 3, with the first pipe layer located above the second pipe layer; the distance between two adjacent first pipes 2 is smaller than the gap between two adjacent second pipes 3; the length of the first pipe 2 is longer than the length of the second pipe 3; the end plates 1 are bent to form a resting surface that can be placed on an externally arranged horizontal beam 9.

[0021] In the actual installation process, the original 9 layers of crossbeams of the desulfurization tower are used; the original 9 layers of crossbeams have multiple crossbeams 9 arranged side by side; the end plates 1 on both sides of the above-mentioned integrated Venturi reactor are placed on the crossbeams 9.

[0022] When the flue gas enters the tower from the exhaust gas inlet at the bottom of the tower, it comes into contact with the integrated Venturi reactor. The upper space of the first pipe layer, the gap of the first pipe layer, the gap of the second pipe layer, and the lower space of the second pipe layer form a Venturi-like flow channel structure that suddenly expands and gradually decreases. The gas is redistributed in the reactor, making the gas entering the packing layer of the tower more uniform.

[0023] Through the optimization of this embodiment, no major modifications to the existing desulfurization tower are required; the purpose of this application can be achieved by utilizing the existing nine layers of crossbeams.

[0024] More specifically, the end plate 1 consists of a first vertical plate 4, a horizontal plate 5, and a second vertical plate 6, arranged from the upper right to the lower left. The first vertical plate 4 is connected to the end of the first pipe 2, and the second vertical plate 6 is connected to the end of the second pipe 3.

[0025] The horizontal plate 5 mentioned above is the support surface. From the main viewpoint, the distance between the two first vertical plates 4 is greater than the distance between the two second vertical plates 6.

[0026] Preferably, the end plate 1 is welded to the first pipe 2 and the second pipe 3; the end plate 1 seals the ends of the first pipe 2 and the second pipe 3; the end plate 1, the first pipe 2 and the second pipe 3 are all made of corrosion-resistant materials; more preferably, the end plate 1, the first pipe 2 and the second pipe 3 are all made of stainless steel and have an external corrosion-resistant lining.

[0027] pass Figure 1 As can be seen from the top view, most integrated Venturi reactors can be configured as rectangular (see reference). Figure 2 However, the integrated Venturi reactor near the side wall of tower body 7 needs to be set in a trapezoidal shape; if the horizontal projection of the integrated Venturi reactor is trapezoidal (refer to...). Figure 3 If the end plate 1 is its long side and short side, then another end plate needs to be welded to its hypotenuse to fix pipes of different lengths from the three sides.

[0028] Example 2

[0029] refer to Figures 4 to 6 A desulfurization tower includes a tower body 7, with a waste gas inlet 8 at the bottom of the tower body 7; multiple crossbeams 9 are arranged side by side inside the tower body 7; the crossbeams 9 are located near the waste gas inlet 8; multiple integrated Venturi reactors A as described in Example 1 are placed on two adjacent crossbeams 9, and the crossbeams 9 and the integrated Venturi reactors A constitute a gas redistribution layer B.

[0030] Implicitly, the desulfurization tower in this embodiment also has a packing layer, a spray layer, and an exhaust port above the integrated Venturi reactor. These are all conventional technologies in the field, and this embodiment does not impose any restrictions on them.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of the present utility model, and these improvements or modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated Venturi reactor for improving the efficiency of a desulfurization tower, comprising two end plates, characterized in that, A first pipe layer and a second pipe layer are fixed between the two end plates; the first pipe layer consists of multiple horizontally arranged first pipes; the second pipe layer consists of multiple horizontally arranged second pipes, and the first pipe layer is located above the second pipe layer; the distance between two adjacent first pipes is smaller than the distance between two adjacent second pipes; the length of the first pipe is longer than the length of the second pipe; the end plate is bent to form a support surface that can be placed on an externally arranged horizontal beam.

2. The integrated Venturi reactor for improving the efficiency of a desulfurization tower according to claim 1, characterized in that, The end plate consists of a first vertical plate, a horizontal plate, and a second vertical plate, arranged from right to bottom. The first vertical plate is connected to the end of the first pipe, and the second vertical plate is connected to the end of the second pipe.

3. The integrated Venturi reactor for improving the efficiency of a desulfurization tower according to claim 1, characterized in that, The end plate is welded to the first pipe and the second pipe; the end plate seals the ends of the first pipe and the second pipe.

4. The integrated Venturi reactor for improving the efficiency of a desulfurization tower according to claim 1, characterized in that, The end plate, the first pipe, and the second pipe are all made of corrosion-resistant materials.

5. The integrated Venturi reactor for improving the efficiency of a desulfurization tower according to claim 4, characterized in that, The end plate, the first pipe, and the second pipe are all made of stainless steel; the surface of the end plate, the first pipe, and the second pipe is provided with an anti-corrosion lining.

6. The integrated Venturi reactor for improving the efficiency of a desulfurization tower according to claim 1, characterized in that, The integrated Venturi reactor is projected onto a horizontal plane in the form of a rectangle or trapezoid.

7. A desulfurization tower, characterized in that, The device includes a tower body, the bottom of which is provided with an exhaust gas inlet; multiple crossbeams are arranged side by side inside the tower body; the crossbeams are located near the exhaust gas inlet; and multiple integrated Venturi reactors as described in any one of claims 1 to 6 are placed on adjacent crossbeams.

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