Sealing and dehumidifying device for insulation box

Abstract

The utility model relates to the technical field of insulation boxes, in particular to an insulation box sealing dehumidification device which comprises an absorption tower and an insulation box arranged at the top of the absorption tower. The top of the porcelain bottle is closed, and the bottom of the porcelain bottle is provided with an opening communicated with the absorption tower; the top of the porcelain bottle is connected with a cathode wire, and a sealing air inlet pipe is arranged below the porcelain bottle; the sealing air inlet pipe is connected with an air inlet header pipe which is connected with the insulation box through an air inlet branch pipe. The air inlet header pipe is connected with a heater used for heating air in the air inlet header pipe. According to the utility model, through the arrangement of the air inlet branch pipe, air can be introduced into the insulation box, so that certain positive pressure is kept in the insulation box, and when a gap appears on the combination surface of the porcelain bottle and the insulation box, moisture cannot enter the insulation box through the gap; by arranging the heater, air entering the insulation box and sealing air entering the position below the porcelain bottle can be heated, water vapor in the air is removed, and condensation and creepage of the porcelain bottle are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating boxes, in particular to a sealing and dehumidifying device for an insulating box. Background Art

[0002] There are multiple insulating boxes installed at the top of the absorption tower. Inside the insulating box, there are porcelain chips and porcelain insulators, and the porcelain insulators are connected to the cathode wires of a wet dust collector; the lower part of the porcelain insulator communicates with the absorption tower. With the long-term use of the insulating box, gaps will appear at the joint surface between the porcelain insulator and the insulating box, resulting in air leakage; moisture will enter the inside of the insulating box, causing flashover and arcing on the porcelain insulator; below the porcelain insulator, there is a sealed air inlet duct for preventing moisture in the absorption tower from entering the inside of the porcelain insulator; the sealed air is natural air, and when it rains and the temperature drops, the sealed air carries a large amount of water vapor, which easily causes condensation and flashover on the inner wall of the porcelain insulator, affecting the safe and stable operation of the dehumidification power plant. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a sealing and dehumidifying device for an insulating box, so as to solve the problem that the porcelain insulators inside the insulating box are prone to flashover and ignition in the prior art.

[0004] To achieve the above purpose, the utility model provides a sealing and dehumidifying device for an insulating box, which is applied to an insulating box arranged at the top of an absorption tower; inside the insulating box, there is a porcelain insulator, the top of the porcelain insulator is closed, and the bottom is provided with an open mouth communicating with the absorption tower; the top of the porcelain insulator is connected with a cathode wire, and below the porcelain insulator, there is a sealed air inlet duct; the sealed air inlet duct is connected with a main air inlet pipe, and the main air inlet pipe is connected with the insulating box through an air inlet branch pipe.

[0005] Further, a heater for heating the air in the main air inlet pipe is connected to the main air inlet pipe.

[0006] Further, the heater is a steam heat exchanger, and the steam heat exchanger is connected with a steam pipeline.

[0007] Further, an electric heater is arranged inside the insulating box.

[0008] By arranging the air inlet branch pipe, the utility model can introduce air into the insulating box to keep a certain positive pressure inside the insulating box. When gaps appear at the joint surface between the porcelain insulator and the insulating box, it can ensure that moisture cannot enter the insulating box through the gaps.

[0009] By arranging the heater, the utility model can heat the air entering the insulating box and the sealed air introduced below the porcelain insulator, remove the water vapor in the air, and avoid condensation and flashover of the porcelain insulator.

[0010] By arranging the steam heater, the advantages compared with using electric heating are that there is no need to lay cables, no need for DCS to do logic control, the required technical level is low, and the cost is low. Description of the Drawings

[0011] The attached drawings of the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0012] Figure 1 It is a schematic structural diagram of an embodiment;

[0013] In the figure: 1, insulating box; 2, absorption tower; 3, porcelain insulator; 4, cathode wire; 5, sealed air inlet duct; 6, main air inlet pipe; 7, sub-air inlet pipe; 8, steam heat exchanger; 9, steam pipe; 10, electric heater. Detailed implementation manners

[0014] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the attached drawings and in conjunction with the embodiments.

[0015] As Figure 1 shown, according to an embodiment of the present utility model, there is provided an insulating box sealing and dehumidifying device, which is applied to the insulating box 1 provided at the top of the absorption tower 2; inside the insulating box 1, there is a porcelain insulator 3, the top of the porcelain insulator 3 is closed, and the bottom is provided with an open mouth communicating with the absorption tower 2; the top of the porcelain insulator 3 is connected with a cathode wire 4, and a sealed air inlet duct 5 is provided below the porcelain insulator 3; the sealed air inlet duct 5 is connected with a main air inlet pipe 6, and the main air inlet pipe 6 is connected with the insulating box 1 through a sub-air inlet pipe 7.

[0016] The sub-air inlet pipe 7 can introduce air into the insulating box 1 to keep a certain positive pressure inside the insulating box 1. When there is a gap at the joint surface of the porcelain insulator 3 and the insulating box 1, it is ensured that moisture cannot enter the insulating box 1 through the gap.

[0017] A heater for heating the air in the main air inlet pipe 6 is connected to the main air inlet pipe 6; the heater is a steam heat exchanger 8, and the steam heat exchanger 8 is connected with a steam pipe 9. The advantage of heating by the steam heat exchanger 8 compared with electric heating is that it does not require laying cables, does not require DCS for logic control, has a low technical level requirement, and low cost.

[0018] The heater can heat the air entering the insulating box 1 and the sealed air introduced below the porcelain insulator 3 to remove the water vapor in the air and avoid condensation and flashover of the porcelain insulator 3.

[0019] An electric heater 10 is provided inside the insulating box 1, and the electric heater 10 is used to keep the inside of the insulating box 1 dry and avoid condensation and flashover of the porcelain insulator 3.

[0020] After the above-mentioned embodiment is used, the phenomenon of flashover ignition of the porcelain insulator no longer occurs, ensuring the safe and stable operation of the dehumidifying power plant.

[0021] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An insulating box sealing and dehumidifying device is applied to an insulating box (1) arranged at the top of an absorption tower (2); a porcelain bottle (3) is arranged inside the insulating box (1), the top of the porcelain bottle (3) is closed, and an open end communicating with the absorption tower (2) is arranged at the bottom; a cathode wire (4) is connected to the top of the porcelain bottle (3), and a sealed air inlet duct (5) is arranged below the porcelain bottle (3); it is characterized in that, The sealed air inlet duct (5) is connected to the main air inlet duct (6), and the main air inlet duct (6) is connected to the insulating box (1) through the air inlet branch duct (7).

2. The insulation box sealing and dehumidifying device according to claim 1, characterized in that, A heater for heating the air in the main air inlet duct (6) is connected to the main air inlet duct (6).

3. The insulation box sealing and dehumidifying device according to claim 2, wherein The heater is a steam heat exchanger (8), and the steam heat exchanger (8) is connected to a steam pipe (9).

4. The insulating box sealing and dehumidifying device according to claim 1, wherein An electric heater (10) is provided in the insulating box (1).

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