Maintenance-free moisture absorber

Abstract

A maintenance-free moisture absorber comprises a moisture absorption pipeline. An air outlet pipeline is arranged on the moisture absorption pipeline; an air inlet pipeline is arranged on the lower side of the moisture absorption pipeline; the air inlet pipeline extends into the moisture absorption pipeline to form an air inlet channel with holes; moisture filtering silica gel is arranged on the outer side of the air inlet channel in the moisture absorption pipeline; a heater is arranged on one side of the moisture absorption pipeline; a heating pipe of the heater extends into the moisture absorption pipeline and is spirally wound in the moisture filtering silica gel; a first ventilation grid is circumferentially arranged on the periphery of the air outlet pipeline on the upper side of the moisture absorption pipeline; a second air-permeable grid is arranged in the air outlet pipeline opposite to the first air-permeable grid; the first air-permeable grids and the second air-permeable grids are arranged in a staggered manner; and a rotating grating is rotationally arranged on the lower sides of the first breathable grating and the second breathable grating in the moisture absorption pipeline.

Description

Technical Field

[0001] The utility model belongs to the field of desiccant, and in particular relates to a maintenance-free desiccant. Background Art

[0002] Desiccant is usually installed on the vent hole of transformer oil storage cabinet to filter the moisture in the air to keep the incoming gas dry. Desiccant is usually filtered with silica gel. After long-term use, the silica gel absorbs more moisture, and the moisture absorption efficiency and effect of the desiccant will decrease. At this time, new silica gel is usually replaced to maintain the moisture absorption effect of the desiccant. The operation is cumbersome. At present, a heating device is set to heat the silica gel to disperse the moisture in the silica gel and restore the moisture absorption function of the silica gel. However, the silica gel is set in the desiccant. After heating, the water vapor released is still in the desiccant, which is not easy to discharge and there is a risk of entering the transformer oil storage cabinet. Utility Model Content

[0003] The utility model aims to provide a maintenance-free desiccant to solve the technical problem that a heating device is provided to heat the moisture filter silica gel to disperse the moisture in the moisture filter silica gel and restore the moisture absorption function of the moisture filter silica gel, but the moisture filter silica gel is provided in the desiccant, and the water vapor dispersed after heating is still in the desiccant, which is not convenient to discharge and has the risk of entering the transformer oil storage cabinet.

[0004] To achieve the above purpose, the specific technical solution of the maintenance-free dehumidifying breather of the utility model is as follows:

[0005] A maintenance-free desiccant comprises a desiccant pipe; an air outlet pipe is arranged on the upper side of the desiccant pipe; an air inlet pipe is arranged on the lower side of the desiccant pipe; an air inlet passage with holes is extended from the air inlet pipe into the desiccant pipe; moisture filtering silica gel is arranged on the outer side of the air inlet passage in the desiccant pipe; a heater is arranged on one side of the desiccant pipe; a heating tube of the heater extends into the desiccant pipe and spirally winds around the moisture filtering silica gel; a first air permeable grille is arranged circumferentially on the outer periphery of the air outlet pipe on the upper side of the desiccant pipe; a second air permeable grille is arranged in the air outlet pipe at a position opposite to the first air permeable grille; the first air permeable grille and the second air permeable grille are arranged in an alternating manner; a rotating grille is rotatably arranged on the lower side of the first air permeable grille and the second air permeable grille in the desiccant pipe.

[0006] Furthermore, a filter is provided at the lower end of the air intake pipe.

[0007] Furthermore, a humidity sensor is provided on one side of the moisture absorption pipeline and extends thereinto.

[0008] Furthermore, an adjusting rod is arranged on the upper side of the rotating grille; a cylinder is arranged on the upper side of the moisture absorption pipeline; and a cylinder head is connected to the adjusting rod.

[0009] The utility model discloses a maintenance-free dehumidifier with the following advantages: an air inlet passage is extended from an air inlet pipe into a dehumidification pipeline, and a moisture-filtering silica gel is arranged outside the air inlet passage, and the moisture-filtering silica gel is used to filter the gas introduced through the air inlet pipe and the air inlet passage, so as to ensure the dryness of the air; at the same time, the air inlet passage extended into the dehumidification pipeline can increase the contact area between the introduced air and the moisture-filtering silica gel, increase the efficiency of air moisture filtering, and prevent the moisture-filtering silica gel from affecting the ventilation volume introduced into the transformer oil storage cabinet; the first air-permeable grille and the second air-permeable grille are arranged in a relative manner through the coordination of the rotating grille by the staggered arrangement of the first air-permeable grille and the second air-permeable grille, when the gas is introduced into the transformer oil storage cabinet, the second air-permeable grille is opened and the first air-permeable grille is closed by rotating the rotating grille, when the humidity of the moisture-filtering silica gel is relatively large and the water vapor is saturated, the heater is turned on to heat the moisture-filtering silica gel, the first air-permeable grille is opened and the second air-permeable grille is closed by rotating the grille, and the water vapor emitted by the moisture-filtering silica gel is discharged out of the dehumidification pipeline through the first air-permeable grille, so as to prevent the water vapor from entering the transformer oil storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the filter installation structure of the utility model;

[0012] Figure 3 It is a cross-sectional schematic diagram of the moisture absorption pipeline installation structure of the utility model;

[0013] Figure 4 It is a cross-sectional schematic diagram of the rotating grille explosion structure of the utility model;

[0014] Explanation of the markings in the figure: 1. Desiccant pipeline; 2. Exhaust pipe; 3. Inlet pipe; 4. Inlet channel; 5. Dehumidification filter silica gel; 6. Heater; 7. Heating tube; 8. First air grille; 9. Second air grille; 10. Rotating grille; 11. Filter; 12. Humidity sensor; 13. Adjustment rod; 14. Cylinder. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, structure and function of the utility model, the maintenance-free dehumidifying breather of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1-4As shown, the utility model is a maintenance-free desiccant, comprising a desiccant pipe 1; an air outlet pipe 2 is arranged on the upper side of the desiccant pipe 1; an air inlet pipe 3 is arranged on the lower side of the desiccant pipe 1; an air inlet channel 4 with holes is extended from the air inlet pipe 3 into the desiccant pipe 1; a moisture filter silica gel 5 is arranged on the outer side of the air inlet channel 4 in the desiccant pipe 1; a heater 6 is arranged on one side of the desiccant pipe 1; a heating pipe 7 of the heater 6 extends into the desiccant pipe 1 and is spirally wound in the moisture filter silica gel 5; the desiccant pipe 1 is provided at the upper side of the air outlet pipe 2 in the circumferential direction of a first air permeable grille 8; a second air permeable grille 9 is provided in the air outlet pipe 2 at a position opposite to the first air permeable grille 8; the first air permeable grille 8 and the second air permeable grille 9 are arranged in a staggered manner; a rotating grille 10 is rotatably provided at the lower side of the first air permeable grille 8 and the second air permeable grille 9 in the moisture absorption pipeline 1, and an adjusting rod 13 is provided at the upper side of the rotating grille 10; a cylinder 14 is provided at the upper side of the moisture absorption pipeline 1; and a cylinder head of the cylinder 14 is connected to the adjusting rod 13.

[0017] Combination Figure 1-4 As shown, when in use, the air outlet pipeline is connected to the transformer oil conservator, and air is introduced into the transformer oil conservator through the device. An air inlet channel 4 is provided through the air inlet pipeline 3 to extend into the moisture absorption pipeline 1, and a moisture filtering silica gel 5 is provided on the outside of the air inlet channel 4. The moisture filtering silica gel 5 is used to filter the gas introduced through the air inlet pipeline 3 and the air inlet channel 4 to ensure the dryness of the air. At the same time, the air inlet channel 4 extending into the moisture absorption pipeline 1 can increase the contact area between the introduced air and the moisture filtering silica gel 5, increase the amount of air that can be filtered through the moisture filtering silica gel 5 in the same time, increase the efficiency of air moisture filtering, and prevent the moisture filtering silica gel 5 from affecting the ventilation volume introduced into the transformer oil conservator.

[0018] The first air-permeable grille 8 and the second air-permeable grille 9 are staggered and cooperate with the rotating grille 10, so that the opening and closing of the first air-permeable grille 8 and the second air-permeable grille 9 are in a relative state. When gas is introduced into the transformer oil conservator, the cylinder 14 head controls the adjusting rod 13, and the rotating grille 10 is adjusted to open the second air-permeable grille 9. At the same time, the first air-permeable grille 8 is blocked by the rotating grille 10 and closed to ventilate outside the moisture absorption pipeline 1. When the humidity of the moisture filter silica gel 5 is relatively high and the water vapor is saturated, the heater 6 is turned on to heat the moisture filter silica gel 5. The rotating grille 10 is adjusted by the cylinder 14 head to control the adjusting rod 13 to open the first air-permeable grille 8, and the second air-permeable grille 9 is closed to ventilate into the transformer oil conservator. The water vapor emitted by the moisture filter silica gel 5 is discharged outside the moisture absorption pipeline 1 through the first air-permeable grille 8, so as to prevent the water vapor from entering the transformer oil conservator.

[0019] A filter screen 11 is provided at the lower end of the air intake pipe 3. The filter screen 11 provided at the lower side of the air intake pipe can effectively filter the air entering the moisture absorption pipe 1 to prevent dust and debris from entering the moisture absorption pipe 1 and causing blockage of the moisture filter silica gel 5, thereby affecting normal ventilation into the transformer oil storage cabinet.

[0020] A humidity sensor 12 is provided on one side of the moisture absorption pipeline 1 and extends thereinto. The air humidity in the moisture absorption pipeline 1 is detected by the humidity sensor 12. When the moisture filter silica gel 5 has been working for a long time and its water content is high and saturated, making it difficult to effectively filter the moisture in the passing air, the humidity sensor 12 can promptly detect that the air humidity passing through the moisture filter silica gel 5 is at a high level, and promptly heat the moisture filter silica gel 5 through the heater 6 and the heating tube 7 to dissipate the moisture adsorbed in the moisture filter silica gel 5, thereby restoring the function of the moisture filter silica gel 5 to filter and adsorb moisture in the passing air.

[0021] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A maintenance-free dehumidifying breather, characterized in that: The invention comprises a moisture absorption pipeline (1); an air outlet pipeline (2) is arranged on the upper side of the moisture absorption pipeline (1); an air intake pipeline (3) is arranged on the lower side of the moisture absorption pipeline (1); an air intake channel (4) with holes is arranged in the air intake channel (3) extending into the moisture absorption pipeline (1); a moisture filter silica gel (5) is arranged on the outer side of the air intake channel (4) in the moisture absorption pipeline (1); a heater (6) is arranged on one side of the moisture absorption pipeline (1); a heating pipe (7) of the heater (6) extends to the moisture absorption pipeline ( 1) is spirally wound inside a moisture filtering silica gel (5); a first air permeable grille (8) is arranged on the upper side of the moisture absorption pipeline (1) in the circumferential direction of the outer periphery of the air outlet pipeline (2); a second air permeable grille (9) is arranged in the air outlet pipeline (2) at a position opposite to the first air permeable grille (8); the first air permeable grille (8) and the second air permeable grille (9) are arranged in an alternating manner; and a rotating grille (10) is rotatably arranged on the lower side of the first air permeable grille (8) and the second air permeable grille (9) in the moisture absorption pipeline (1).

2. A maintenance-free dehumidifying breather according to claim 1, characterized in that: A filter screen (11) is provided at the lower end of the air intake pipe (3).

3. A maintenance-free dehumidifying breather according to claim 1, characterized in that: A humidity sensor (12) is provided on one side of the moisture absorption pipeline (1) and extends inwardly therein.

4. A maintenance-free dehumidifying breather according to claim 1, characterized in that: An adjusting rod (13) is arranged on the upper side of the rotating grille (10); an air cylinder (14) is arranged on the upper side of the moisture absorption pipeline (1); and a cylinder head of the air cylinder (14) is connected to the adjusting rod (13).

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