Airport pressure isolation transformer box and drainage method

Abstract

The invention discloses an airport pressure isolation transformer box and a drainage method, and belongs to the technical field of civil aviation airport equipment. The device comprises a box body and a cover plate, the cover plate covers the top of the box body; an air inlet and a water outlet are formed in the cover plate, the air inlet is communicated with the inner cavity of the box body, a water outlet pipe communicated with the water outlet is installed at the bottom of the cover plate, and the water outlet pipe extends downwards to be close to the bottom of the inner cavity of the box body. The water accumulation condition in the box body can be known without opening the cover plate, the tedious work of frequently opening the cover plate is reduced, and the risk of damage to equipment caused by water accumulation in the box body is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of civil aviation airport equipment, and in particular to an airport pressure isolation transformer box and a drainage method. Background Art

[0002] The airport isolation transformer box is used to protect the transformer inside the box from water erosion. The sealing performance of the existing airport isolation transformer box is unstable. There are many reasons for air and water leakage in the box. Improper installation of the cover, failure of the sealing strip, and loose connection of the buried pipeline interface will cause water to enter the box, thereby damaging the transformer inside the box. The cover needs to be opened frequently to check and clean the accumulated water. The design of the existing isolation transformer box cannot guarantee waterproof sealing performance; it is impossible to judge the water accumulation in the box when the cover is sealed; after water enters the box, it is difficult to drain. Summary of the invention

[0003] The purpose of the present invention is to provide an airport pressure isolation transformer box and a drainage method, which can understand the water accumulation in the box without opening the cover, reducing the tedious work of frequent opening of the cover and reducing the risk of damage to equipment caused by water accumulation in the box.

[0004] In order to solve the above technical problems, the present invention provides an airport pressure isolation transformer box, comprising a box body and a cover plate;

[0005] Including box body and cover;

[0006] The cover plate is arranged on the top of the box body;

[0007] The cover plate is provided with an air inlet and a water outlet, the air inlet is communicated with the inner cavity of the box body, a water outlet pipe communicated with the water outlet is installed at the bottom of the cover plate, and the water outlet pipe extends downward to near the bottom of the inner cavity of the box body.

[0008] Preferably, it also includes a pressure detection device;

[0009] The pressure detection device is installed at the center of the bottom of the cover plate.

[0010] Preferably, a cover plate rubber ring is provided between the cover plate and the box body.

[0011] Preferably, an air pump is installed on the air inlet, and an air nozzle connected to the air pump is provided on the side facing the inner cavity of the box.

[0012] Preferably, a one-way valve is provided in the air inlet and the water outlet respectively.

[0013] Preferably, the top of the box body extends outward to form an annular plate;

[0014] An annular groove is provided in the middle of the annular plate;

[0015] The cover plate rubber ring is installed in the annular groove.

[0016] Preferably, the annular plate of the box body is connected to the cover plate by a plurality of bolts.

[0017] Preferably, a plurality of wiring pipe openings are provided on the bottom and side walls of the box body.

[0018] Preferably, the wiring pipe opening comprises a single-head inner thread pipe clamp, a sealing rubber plug and a pipe clamp cover which are arranged in sequence.

[0019] The present invention also provides a method for draining a pressure isolation transformer box at an airport, comprising the following steps:

[0020] When the pressure of the pressure detection device changes from a positive value to zero or a negative value, the drain valve at the water outlet is opened, and gas is input into the box through the air pump at the air inlet, so that the air pressure in the box cavity increases;

[0021] Under the action of the air pressure in the inner cavity of the box, the accumulated water in the box will be discharged from the outlet through the outlet pipe until the outlet no longer discharges the accumulated water; if there is no accumulated water in the box, the outlet will discharge air under the action of the air pressure in the inner cavity of the box;

[0022] Close the drain valve at the water outlet and continue to increase the pressure in the box through the air pump at the air inlet;

[0023] If the pressure of the pressure detection device cannot increase or the pressure drops within a short period of time, it is determined that there are large air leakage holes or gaps in the box, and the cover is opened to check the internal sealing of the box.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention can understand the water accumulation situation in the box without opening the cover plate, thus reducing the tedious work of frequent opening of the cover and reducing the risk of damage to equipment caused by water accumulation in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of an airport pressure isolation transformer box of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the top of the box.

[0029] In the figure:

[0030] 1-box body; 11-annular plate; 12-annular groove; 2-cover plate; 21-cover plate rubber ring; 3-air inlet; 4-water outlet; 5-water outlet pipe; 6-pressure detection device; 7-wiring pipe opening; 71-single-head inner thread pipe clamp; 72-sealing rubber plug; 73-pipe clamp cover; 8-bolts. DETAILED DESCRIPTION

[0031] Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited to the specific implementation disclosed below.

[0032] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0033] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0035] The present invention provides an airport pressure isolation transformer box, comprising a box body 1 and a cover plate 2;

[0036] The cover plate 2 is arranged on the top of the box body 1;

[0037] The cover plate 2 is provided with an air inlet 3 and a water outlet 4, the air inlet 3 is connected to the inner cavity of the box body 1, and a water outlet pipe 5 connected to the water outlet 4 is installed at the bottom of the cover plate 2, and the water outlet pipe 5 extends downward to near the bottom of the inner cavity of the box body 1.

[0038] Preferably, it also includes a pressure detection device 6;

[0039] The pressure detection device 6 is installed at the bottom center of the cover plate 2 .

[0040] Preferably, a cover plate rubber ring 21 is provided between the cover plate 2 and the box body 1 .

[0041] Preferably, an air pump is installed on the air inlet 3 , and an air nozzle connected to the air pump is provided on the side facing the inner cavity of the box body 1 .

[0042] Preferably, one-way valves are respectively provided in the air inlet 3 and the water outlet 4 .

[0043] Preferably, the top of the box body 1 extends outward to form an annular plate 11;

[0044] An annular groove 12 is provided in the middle of the annular plate 11;

[0045] The cover plate rubber ring 21 is installed in the annular groove 12 .

[0046] Preferably, the annular plate 11 of the box body 1 is connected to the cover plate 2 via a plurality of bolts 8 .

[0047] Preferably, a plurality of wiring pipe openings 7 are provided on the bottom and side walls of the box body 1 .

[0048] Preferably, the wiring pipe opening 7 comprises a single-end inner thread pipe clamp 71, a sealing rubber plug 72 and a pipe clamp cover 73 which are arranged in sequence.

[0049] The present invention also provides a method for draining a pressure isolation transformer box at an airport, comprising the following steps:

[0050] When the pressure of the pressure detection device 6 changes from a positive value to zero or a negative value, the drain valve of the water outlet 4 is opened, and gas is input into the box body 1 through the air pump of the air inlet 3, so that the air pressure in the inner cavity of the box body 1 increases;

[0051] Under the action of the air pressure in the inner cavity of the box body 1, the accumulated water therein is discharged from the water outlet 4 through the water outlet pipe 5 until the water outlet 4 no longer discharges the accumulated water; if there is no accumulated water in the box body 1, the water outlet 4 will discharge air under the action of the air pressure in the inner cavity of the box body 1;

[0052] Close the drain valve of the water outlet 4, and continue to increase the pressure in the box 1 through the air pump of the air inlet 3;

[0053] If the pressure of the pressure detection device 6 cannot be increased or the pressure drops in a short time, it is determined that there are large air leakage holes or gaps in the box body 1, and the cover plate 2 is opened to check the internal sealing condition of the box body 1.

[0054] In order to better illustrate the technical effect of the present invention, the present invention provides the following specific embodiments to illustrate the above technical process:

[0055] Embodiment 1: An airport pressure isolation transformer box, which can be used to understand the water accumulation in the box without opening the cover, thereby reducing the tedious work of frequent opening of the cover and reducing the risk of damage to equipment caused by water accumulation in the box.

[0056] like Figure 1 As shown, the transformer box specifically includes a box body 1, a cover plate 2, a pressure detection device 6, an air intake device, a drainage device and a sealing device;

[0057] in:

[0058] The sealing device includes a sealing rubber plug 72 and a cover rubber ring 21, which play a waterproof role; the sealing rubber plug 72 is installed between the single-head inner thread pipe clamp 71 and the pipe clamp cover 73 of the wiring pipe opening 7 to ensure the sealing of the wiring pipe opening 7; the cover rubber ring 21 is set in the annular groove 12 of the top annular plate 11 of the box body 1 to ensure the sealing between the box body 1 and the cover plate 2, such as Figure 2 shown.

[0059] The pressure detection device 6 is a pressure gauge, which is installed at the bottom of the cover plate 2 and located in the inner cavity of the box body 1, and is used to determine the water accumulation in the box;

[0060] The air intake device comprises an air intake port 3, an air pump and an air nozzle;

[0061] The water outlet device comprises a water outlet 4 and a water outlet pipe 5;

[0062] The air intake device and the water outlet device are used together to play a drainage role; the air inlet 3 and the water outlet 4 are symmetrically arranged on both sides of the cover plate 2, and the air pump of the air intake device sucks external air into the inner cavity of the box body 1 through the air inlet 3. The air pressure in the inner cavity of the box body 1 rises, and the water therein passes through the water outlet pipe 5 of the water outlet device and is discharged from the water outlet 4.

[0063] The air intake device is used alone to increase the pressure of the inner cavity of the box 1, thereby preventing water from accumulating in the box and determining the water accumulation in the box;

[0064] When the pressure of the pressure detection device 6 (pressure gauge) changes from a positive value to zero or a negative value, it can be determined that there is a gas leak in the box body 1, and there may be a water leak or condensed water. At this time, the drain valve at the water outlet 4 can be opened, and gas can be input through the air pump at the air inlet 3;

[0065] After the gas is input, if there is water in the box 1, the water can be discharged from the water outlet 4 through the water outlet pipe 5;

[0066] After the gas is input, if there is no water accumulation in the box 1, the water outlet 4 will directly discharge the air. You can close the drain valve of the water outlet 4 and continue to increase the pressure in the box 1 through the air pump of the air inlet 3 until the pressure display shows a positive value.

[0067] When the exhaust valve at the water outlet 4 is closed, continue to increase the pressure in the box 1 through the air pump at the air inlet 3. If the pressure in the box 1 cannot be increased or the pressure drops within a short period of time, it can be determined that there are large leaking holes or gaps in the box 1, and the cover 2 can be opened to check the internal sealing condition.

[0068] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in 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

1. An airport pressure isolation transformer box, characterized in that: It comprises a box body (1) and a cover plate (2); The cover plate (2) is arranged on the top of the box body (1); The cover plate (2) is provided with an air inlet (3) and a water outlet (4); the air inlet (3) is in communication with the inner cavity of the box body (1); a water outlet pipe (5) in communication with the water outlet (4) is installed at the bottom of the cover plate (2); the water outlet pipe (5) extends downward to near the bottom of the inner cavity of the box body (1).

2. The airport pressure isolation transformer box according to claim 1 is characterized in that: It also includes a pressure detection device (6); The pressure detection device (6) is installed at the center of the bottom of the cover plate (2).

3. The airport pressure isolation transformer box according to claim 2 is characterized in that: A cover plate rubber ring (21) is provided between the cover plate (2) and the box body (1).

4. The airport pressure isolation transformer box according to claim 3 is characterized in that: An air pump is installed on the air inlet (3), and an air nozzle connected to the air pump is arranged on the side facing the inner cavity of the box body (1).

5. The airport pressure isolation transformer box according to claim 4 is characterized in that: One-way valves are respectively provided in the air inlet (3) and the water outlet (4).

6. The airport pressure isolation transformer box according to claim 5 is characterized by: The top of the box body (1) extends outward to form an annular plate (11); An annular groove (12) is provided in the middle of the annular plate (11); The cover plate rubber ring (21) is installed in the annular groove (12).

7. The airport pressure isolation transformer box according to claim 6 is characterized by: The annular plate (11) of the box body (1) is connected to the cover plate (2) via a plurality of bolts (8).

8. The airport pressure isolation transformer box according to claim 1 is characterized by: A plurality of wiring pipe openings (7) are arranged on the bottom and side walls of the box body (1).

9. The airport pressure isolation transformer box according to claim 8, characterized in that: The wiring pipe opening (7) comprises a single-head inner thread pipe clamp (71), a sealing rubber plug (72) and a pipe clamp cover (73) which are arranged in sequence.

10. A method for draining a pressure isolation transformer box at an airport, wherein the transformer box is the pressure isolation transformer box at an airport as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: When the pressure of the pressure detection device (6) changes from a positive value to zero or a negative value, the drain valve of the water outlet (4) is opened, and gas is input into the box (1) through the air pump of the air inlet (3), so that the air pressure in the inner cavity of the box (1) increases; Under the action of the air pressure in the inner cavity of the box body (1), the accumulated water therein is discharged from the water outlet (4) through the water outlet pipe (5) until the water outlet (4) no longer discharges the accumulated water; if there is no accumulated water in the box body (1), the water outlet (4) will discharge air under the action of the air pressure in the inner cavity of the box body (1); Close the drain valve of the water outlet (4) and continue to increase the pressure in the box (1) through the air pump of the air inlet (3); If the pressure of the pressure detection device (6) cannot be increased or the pressure drops within a short period of time, it is determined that there is a large leak hole or gap in the box body (1), and the cover plate (2) is opened to check the internal sealing condition of the box body (1).

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