CN214598158U

CN214598158U - Maintenance-free moisture absorber

Info

Publication number: CN214598158U
Application number: CN202120641561.5U
Authority: CN
Inventors: 林华斌; 张勇; 谢伦专; 严达
Original assignee: Ningbo Qixin Electrical Technology Co ltd
Current assignee: Ningbo Qixin Electrical Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-05
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to a maintenance-free moisture absorber, which comprises a control box, a heating sheet, a base, an upper connecting plate, a glass cover, an air inlet pipeline and an air outlet pipe, the control box is fixed on the upper connecting plate, a dehumidifying air passage component positioned in the glass cover is connected between the air inlet pipeline and the air outlet pipe, the dehumidified air passageway assembly includes a metal mesh and a hollow inner core holder positioned inside the metal mesh, an air circulation channel is arranged between the metal net and the glass cover, a breathing hole is arranged on the hollow inner core seat, a gap for filling a drying agent is arranged between the hollow inner core seat and the metal net, the heating sheet is arranged on the hollow inner core seat, the upper end face of the hollow inner core print is provided with an inner air hole communicated with the air outlet pipe, a metal cooling pipe inserted into the hollow inner core print is arranged below the inner air hole, and the metal cooling pipe is communicated with the inner air hole. This structure utilizes the metal cooling tube to condense vapor, filters the moisture in the vapor.

Description

Maintenance-free moisture absorber

Technical Field

The utility model relates to a technical field of push rod, more specifically relate to a non-maintaining desiccator.

Background

The oil-immersed transformer contacts moist air for a long time, cause the circuit short circuit easily, damage the transformer, so need the desiccator to dehumidify the air, the desiccator is the automatic moisture absorption of air and purifier of oil-immersed transformer design, the desiccator is installed on oil-immersed transformer oil storage tank, when the transformer normal operating, outside moist air gets into via desiccator metal filter screen and dry silica gel, has clear away impurity and moisture in the air to transformer oil's dielectric strength has been guaranteed. The moisture absorber continuously monitors the internal air temperature and transmits the measurement to the electronic control unit. When the temperature of the air exceeds the set value of the program, the desiccant is indicated to lose the water absorption capacity temporarily to be in a saturated state, and when the pressure sensor monitors positive pressure, the sensor activates a heating element pre-arranged in the silica gel, a heating system of the moisture absorber is started, so that the environment-friendly silica gel is regenerated, and the process is circulated and used repeatedly, so that the aim of avoiding maintenance of the moisture absorber is fulfilled.

However, the existing moisture absorber has the following problems: when the desiccant reaches a saturated state, moisture cannot be absorbed, the self-adjusting heating fillet in the container is started to achieve the effect of heating and drying the desiccant, but water vapor is generated in the drying process of the desiccant and enters the compressor through the opening above the compressor to cause moisture to damage the compressor, so that how to isolate moisture in the water vapor in the container is avoided entering the compressor, the real later-period maintenance-free operation is realized, the service life of the compressor is prolonged, and the moisture-free drying device is more important!

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a maintenance-free moisture absorber capable of isolating water vapor in a container, avoiding post maintenance, and prolonging the service life of a compressor.

In order to solve the technical problem, the technical scheme of the utility model is that: a maintenance-free moisture absorber comprises a shell, a control box and a heating plate electrically connected with the control box, wherein the shell comprises a base, an upper connecting plate and a glass cover positioned between the base and the upper connecting plate, an air inlet pipeline is arranged on the base, an air outlet pipe is arranged on the upper connecting plate, the control box is fixed on the upper connecting plate, a dehumidifying air passage component positioned in the glass cover is connected between the air inlet pipeline and the air outlet pipe, the dehumidifying air passage component comprises a metal net and a hollow inner core seat positioned in the metal net, an air circulation channel is arranged between the metal net and the glass cover, a breathing hole is arranged on the hollow inner core seat, a gap for filling a drying agent is arranged between the hollow inner core seat and the metal net, the heating plate is arranged on the hollow inner core seat, and an inner hole communicated with the air outlet pipe is arranged on the upper end face of the hollow inner core seat, and a metal cooling pipe inserted into the hollow inner core seat is arranged below the inner air hole, and the metal cooling pipe is communicated with the inner air hole.

Furthermore, in order to facilitate installation, a positioning disc is arranged at the bottom of the hollow inner core seat, an air flow channel for conveying air to the air circulation channel is arranged between the positioning disc and the base, the lower end face of the glass cover is clamped in the positioning disc, the upper end of the glass cover is clamped in the upper connecting plate, more than one supporting column is inserted between the positioning disc and the hollow inner core seat, the hollow inner core seat is abutted to the upper connecting plate by the upper end of the supporting column, and the lower end of the supporting column is fixed on the base.

Further, the realization detects the pressure and the temperature of gas, avoids pressure and high temperature to damage the transformer of top, is provided with pressure detector and the thermodetector that the sense terminal inserted in the outlet duct at the outlet duct side.

Furthermore, the sealing effect is improved, a first sealing ring is arranged between the upper connecting plate and the glass cover, and a second sealing ring is arranged between the glass cover and the base.

Furthermore, the sealing effect is improved, and a sealing ring is arranged between the upper connecting plate and the glass cover.

Compared with the prior art, the utility model discloses following technological effect has: therefore, when the drying agent in the heating moisture absorber is used, the metal cooling pipe which is additionally arranged inside is utilized to condense water vapor, moisture is filtered, the phenomenon that the vapor enters the transformer to damage the transformer is avoided, and the service life of the compressor is prolonged.

Drawings

Fig. 1 is an internal cross-sectional view of a maintenance-free dehydrating breather in accordance with embodiment 1;

fig. 2 is a schematic structural view of a hollow inner core print in example 1.

Wherein: a housing 1; a control box 2; a base 3; an upper connecting plate 4; a glass cover 5; an air inlet duct 6; a hollow inner core print 7; an air circulation passage 8; a breathing hole 9; a heating sheet 10; an inner air hole 11; a metal cooling tube 12; a positioning plate 13; an air flow passage 14; a metal cover 15; a support column 16; an air outlet pipe 17; a pressure detector 18; a temperature detector 19; a first seal ring 20; a second seal ring 21.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Example 1:

as shown in fig. 1-2, the maintenance-free moisture absorber disclosed in this embodiment includes a housing 1, a control box 2, and a heating plate 10 electrically connected to the control box 2, where the housing 1 includes a base 3, an upper connecting plate 4, and a glass cover 5 located between the base 3 and the upper connecting plate 4, an air inlet pipe 6 is disposed on the base 3, an air outlet pipe 17 is disposed on the upper connecting plate 4, the control box 2 is fixed on the upper connecting plate 4, a dehumidified air passage component located in the glass cover 5 is connected between the air inlet pipe 6 and the air outlet pipe 17, the dehumidified air passage component includes a metal mesh 15 and a hollow inner core seat 7 located inside the metal mesh 15, an air circulation channel 8 exists between the metal mesh 15 and the glass cover 5, a breathing hole 9 is disposed on the hollow inner core seat 7, a gap for filling a desiccant is disposed between the hollow inner core seat 7 and the metal mesh 15, the heating plate 10 is arranged on the hollow inner core seat 7, an inner air hole 11 communicated with an air outlet pipe 17 is arranged on the upper end face of the hollow inner core seat 7, a metal cooling pipe 12 inserted into the hollow inner core seat 7 is arranged below the inner air hole 11, and the metal cooling pipe 12 is communicated with the inner air hole 11.

When the structure is arranged to work, firstly, the air enters an air circulation channel 8 through an air inlet pipeline 6, then, after dust and impurities are filtered for the first time through a metal net 15, the air enters a gap between a hollow inner core seat 7 and the metal net 15, after the air is dehumidified and dried by a desiccant (in the embodiment, dry silica gel is adopted) in the gap, the air enters the hollow inner core seat 7 through a breathing hole 9, the air is conveyed into an air outlet pipe 17 through a metal cooling pipe 12 channel, the dried air is discharged from the air outlet pipe 17 and enters a transformer, because the relative humidity of the air in a moisture absorber is detected by a temperature and humidity sensor arranged in the moisture absorber (the relative humidity is not described in the prior art), the relative humidity is a desiccant saturation index, when the relative humidity exceeds a set humidity, the desiccant is dried through a heating sheet, and water vapor generated in the drying process enters the hollow inner core seat 7 through the breathing hole 9, utilize the inside metal cooling tube 12 of core print 7 in the cavity (because the metal cooling tube 12 surface is cold), carry out the condensation treatment back, dry air gives vent to anger through outlet duct 17, the drop of water is outside core print 7 in the cavity is discharged along the breathing hole 9 of metal cooling tube 12 wall, and flow to base 3 bottoms in 15 bottoms of metal covering, finally to the bleeder vent (for prior art) outflow desiccator of base 3 bottoms, consequently this structure realizes when heating the inside drier of desiccator, the metal cooling tube that utilizes inside to add carries out condensation treatment to vapor, filter moisture, avoid the phenomenon that vapor enters into the transformer internal damage transformer to take place, extension compressor life. The metal cooling pipe 12 in this embodiment is a copper pipe, and may be made of other metal materials.

Further, in order to facilitate fixing and installation, a positioning disc 13 is arranged at the bottom of the hollow inner core seat 7, an air flowing channel 14 for conveying air to the air flowing channel 8 is arranged between the positioning disc 13 and the base 3, the lower end face of the glass cover 5 is clamped in the positioning disc 13, the upper end of the glass cover 5 is clamped in the upper connecting plate 4, more than one supporting column 16 is inserted between the positioning disc 13 and the hollow inner core seat 7 in a penetrating manner, the hollow inner core seat 7 is abutted to the upper connecting plate 4 by the upper end of the supporting column 16, and the lower end of the supporting column 16 is fixed on the base 3.

Further, the pressure and the temperature of the gas are detected, the transformer above the gas is prevented from being damaged due to overhigh pressure and temperature, the pressure detector 18 and the temperature detector 19 of which the detection ends are inserted into the gas outlet pipe 17 are arranged on the side edge of the gas outlet pipe 17, the pressure and the temperature of the output gas are detected in real time by the pressure detector 18 and the temperature detector 19, and the transformer above the gas is prevented from being damaged due to overhigh pressure and temperature.

Further, improve sealed effect be provided with first sealing washer 20 between upper junction plate 4 and glass cover 5, be provided with second sealing washer 21 between glass cover 5 and base 3, improve sealed effect through setting up the sealing washer.

Of course, the above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a non-maintaining desiccator, includes casing (1), control box (2) and heating plate (10) be connected with control box (2) electricity, casing (1) includes base (3), upper junction plate (4) and is located glass cover (5) between base (3), upper junction plate (4), is provided with admission line (6) on base (3), is provided with outlet duct (17) on upper junction plate (4), control box (2) are fixed on upper junction plate (4), its characterized in that: a dehumidifying air passage component positioned in the glass cover (5) is connected between the air inlet pipeline (6) and the air outlet pipeline (17), the dehumidifying air passage component comprises a metal mesh (15) and a hollow inner core seat (7) positioned inside the metal mesh (15), an air circulation channel (8) is arranged between the metal mesh (15) and the glass cover (5), a breathing hole (9) is arranged on the hollow inner core seat (7), a gap for filling a drying agent is arranged between the hollow inner core seat (7) and the metal net (15), the heating sheet (10) is arranged on the hollow inner core seat (7), an inner air hole (11) communicated with an air outlet pipe (17) is arranged on the upper end surface of the hollow inner core seat (7), a metal cooling pipe (12) inserted into the hollow inner core seat (7) is arranged below the inner air hole (11), and the metal cooling pipe (12) is communicated with the inner air hole (11).

2. A maintenance-free dehydrator breather of claim 1, wherein: the glass cover is characterized in that a positioning disc (13) is arranged at the bottom of the hollow inner core seat (7), an air flowing channel (14) for conveying air to the air circulating channel (8) is arranged between the positioning disc (13) and the base (3), the lower end face of the glass cover (5) is clamped in the positioning disc (13), the upper end of the glass cover (5) is clamped in the upper connecting plate (4), more than one supporting column (16) penetrates between the positioning disc (13) and the hollow inner core seat (7), the hollow inner core seat (7) is abutted to the upper connecting plate (4) by the upper end of the supporting column (16), and the lower end of the supporting column (16) is fixed on the base (3).

3. A maintenance-free dehydrator breather of claim 1, wherein: the side edge of the air outlet pipe (17) is provided with a pressure detector (18) and a temperature detector (19) of which the detection ends are inserted into the air outlet pipe (17).

4. A maintenance-free dehydrator breather of claim 1, 2, or 3, wherein: a first sealing ring (20) is arranged between the upper connecting plate (4) and the glass cover (5), and a second sealing ring (21) is arranged between the glass cover (5) and the base (3).