Breathing port switching device of electric maintenance-free respirator

Abstract

The utility model discloses an electric maintenance-free respirator breathing port switching device which comprises a breathing port switching device body, the side face of the breathing port switching device body is detachably connected with a breathing port transposition device, and the bottom of the breathing port switching device body is detachably connected with a particle collecting device. An upper opening is formed in the top of the breathing switching device, corresponding openings are formed in the connecting positions of the breathing switching device and the breathing opening transposition device, corresponding openings are formed in the connecting positions of the bottom of the breathing opening switching device and the particle collecting device, and the breathing opening switching device is communicated with a hollow cavity of the breathing opening transposition device and a hollow cavity of the particle collecting device. The device is simple in structure and can be directly mounted at the breathing opening of the maintenance-free respirator, the breathing channel of the breathing opening of the maintenance-free respirator is changed, the particle collecting device is arranged, formed small particles are collected, the breathing opening can be prevented from being blocked, and electrical equipment accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of transformer breather, especially to a kind of power maintenance-free breather breathing mouth switching device. BACKGROUND

[0002] Power breather is to keep the air entering the power equipment dry by using desiccant to absorb the moisture in the air. When the temperature inside the power equipment changes, the breather will automatically adjust to keep the pressure inside the equipment balanced. Specifically, when the temperature inside the power equipment rises, the breather will discharge a certain amount of air to reduce the pressure inside the equipment; when the temperature inside the power equipment drops, the breather will inhale a certain amount of air to increase the pressure inside the equipment. In this way, the pressure inside the power equipment can always be kept within a stable range, ensuring the normal operation of the equipment.

[0003] The maintenance-free breather is used in the converter station part of the power system, ordinary transformer and reactor. It is fully automatic and requires less maintenance. However, during operation, it was found that the structure of the breather was not reasonable. Generally, a protective net or grid is arranged at the breathing port to prevent larger foreign matters such as insects and leaves from entering the breather. The protective net can effectively block foreign matters without causing too much obstruction to the air circulation. However, during operation, the breathing port of the breather will be blocked by small particles of the moisture-absorbing agent and some dust in the air, which will be carried in with the incoming and outgoing moisture and accumulate on the protective net at the breathing port. Over a long period of time, the breathing port will be blocked, which may cause equipment accidents and misoperation of the pressure release valve and gas relay. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a power maintenance-free breather breathing port switching device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A power maintenance-free breather breathing port switching device includes a breathing port switching device, a breathing port transposition device and a particle collecting device. The side surface of the breathing port switching device is detachably connected with the breathing port transposition device, and the bottom of the breathing port switching device is detachably connected with the particle collecting device. The breathing port switching device, the breathing port transposition device and the particle collecting device are all hollow cavity structures. The top of the breathing switching device is an upper opening. The connection part of the breathing switching device and the breathing port transposition device is provided with a corresponding opening. The connection part of the bottom of the breathing port switching device and the particle collecting device is provided with a corresponding opening. The hollow cavities of the breathing port switching device, the breathing port transposition device and the particle collecting device are in communication.

[0007] The breathing port adapter is a hollow cavity box body, the upper opening of the breathing port adapter is provided with a connecting plate extending out from both sides, the connecting plate is provided with a through hole, the side of the breathing port adapter is provided with a side opening A, the upper and lower sides of the side opening A are provided with clamping plates, and the bottom of the breathing port adapter is provided with a threaded hole.

[0008] The breathing port adapter is a hollow cavity box body, the upper opening of the breathing port adapter is provided with a connecting plate extending out from both sides, the connecting plate is provided with a through hole, the side of the breathing port adapter is provided with a side opening A, the upper and lower sides of the side opening A are provided with clamping plates, and the bottom of the breathing port adapter is provided with a threaded hole.

[0009] The particle collecting device is a hollow cavity and an upper opening tank body, the upper end of the particle collecting device is provided with an external threaded interface, and the external threaded interface is correspondingly arranged with the threaded hole.

[0010] The particle collecting device is of transparent material, facilitating observation of the particle collecting condition.

[0011] The upper opening of the breathing port adapter is correspondingly fixed at the breathing port of the respirator, and the bolt is fixedly connected to the bottom of the respirator through the through hole in the connecting plate; when being installed, the original protective mesh at the breathing port can be removed, and the installation effect is better.

[0012] The breathing port adapter is simple in structure, can be directly installed at the breathing port of the maintenance-free respirator, changes the breathing channel of the maintenance-free respirator, sets the particle collecting device, collects the small particles formed, avoids the blockage of the breathing port, and avoids power equipment accidents. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the breathing port adapter of the utility model;

[0015] Figure 3 It is a structural diagram of the breathing port adapter of the utility model;

[0016] Figure 4 It is a structural diagram of the particle collecting device of the utility model;

[0017] In the drawing: 1, breathing port adapter; 11, connecting plate; 12, through hole; 13, upper opening; 14, threaded hole; 15, side opening A; 16, clamping plate; 2, breathing port adapter; 21, side opening B; 22, clamping groove; 23, bottom opening; 24, filter screen; 3, particle collecting device; 31, external threaded interface. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] As Figures 1-4 shown, the utility model provides a kind of power maintenance-free respirator breathing port switching device, its structure is: including breathing port switching device 1, breathing port transposition device and particle collection device 3, breathing port switching device 1 side and breathing port transposition device can be detached connection, breathing port switching device 1 bottom and particle collection device 3 can be detached connection;Breathing port switching device 1 is the box of hollow cavity, breathing switching device top is upper opening 13, breathing port switching device 1 is provided with the link plate 11 of two sides extension at upper opening 13, link plate 11 is provided with through-hole 12, breathing port switching device 1 side is provided with side opening A 15, and the upper and lower of side opening A 15 are provided with clamping plate, and the bottom of breathing port switching device 1 is provided with screw hole 14;Breathing port transposition device is the box of hollow cavity, and the side of breathing port transposition device is provided with the side opening B 21 corresponding with side opening A 15, and the upper and lower of side opening B 21 are provided with the clamping groove 22 corresponding with clamping plate, and the bottom of breathing port transposition device is bottom opening 23, and bottom opening 23 is provided with filter screen 24;Particle collection device 3 is the tank of hollow cavity and upper opening 13, and the upper end of particle collection device 3 is provided with outer thread interface 31, and outer thread interface 31 is correspondingly arranged with screw hole 14, and particle collection device 3 is transparent material;

[0020] Specifically, when breathing, the upper opening 13 of the breathing port switching device 1 is fixed at the breathing port of the respirator, and the bolt is fixedly connected to the bottom of the respirator through the through hole 12 on the link plate 11. When installing, the original protective mesh can be removed from the breathing port, and the effect is better when installed at the breathing port. The small particles formed by the respirator are collected in the particle collection device 3.

Claims

1. An electric maintenance-free respirator breathing port adapter, characterized by: It includes a breathing port adapter, a breathing port replacement device and a particle collection device, wherein the side of the breathing port adapter is detachably connected to the breathing port replacement device, and the bottom of the breathing port adapter is detachably connected to the particle collection device; The breathing port adapter device, the breathing port replacement device and the particle collection device are all hollow cavity structures. The top of the breathing adapter device is an upper opening. The connection between the breathing adapter device and the breathing port replacement device is provided with corresponding openings. The connection between the bottom of the breathing port adapter device and the particle collection device is provided with corresponding openings. The breathing port adapter device is connected to the hollow cavities of the breathing port replacement device and the particle collection device.

2. The breathing port adapter device for an electric maintenance-free respirator according to claim 1, characterized in that: The breathing port adapter device is a box body with a hollow cavity. The upper opening of the breathing port adapter device is provided with connecting plates extending on both sides, and the connecting plates are provided with through holes. The side of the breathing port adapter device is provided with a side opening A, and the upper and lower parts of the side opening A are provided with clamping plates. The bottom of the breathing port adapter device is provided with a threaded hole.

3. The breathing port adapter device for an electric maintenance-free respirator according to claim 2, characterized in that: The breathing port replacement device is a box body with a hollow cavity. A side opening B corresponding to the side opening A is provided on the side of the breathing port replacement device. Card slots corresponding to the card plate are provided above and below the side opening B. The bottom of the breathing port replacement device is a bottom opening, and a filter is provided at the bottom opening.

4. The breathing port adapter device for an electric maintenance-free respirator according to claim 3, characterized in that: The particle collecting device is a tank body with a hollow cavity and an upper opening. The upper end of the particle collecting device is provided with an external threaded interface, and the external threaded interface is arranged corresponding to the threaded hole.

5. The breathing port adapter device for an electric maintenance-free respirator according to claim 4, characterized in that: The particle collecting device is made of transparent material.

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