CN116666056A - Moisture absorber, transformer and adsorbent dehumidification method - Google Patents
Moisture absorber, transformer and adsorbent dehumidification method Download PDFInfo
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- CN116666056A CN116666056A CN202310678200.1A CN202310678200A CN116666056A CN 116666056 A CN116666056 A CN 116666056A CN 202310678200 A CN202310678200 A CN 202310678200A CN 116666056 A CN116666056 A CN 116666056A
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- cavity
- shell
- moisture absorber
- heaters
- adsorbent
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 49
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007791 dehumidification Methods 0.000 title description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 31
- 230000000903 blocking effect Effects 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000112 cooling gas Substances 0.000 claims description 2
- 230000000241 respiratory effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 230000001681 protective effect Effects 0.000 description 11
- 239000000741 silica gel Substances 0.000 description 11
- 229910002027 silica gel Inorganic materials 0.000 description 11
- 238000009833 condensation Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 101100438971 Caenorhabditis elegans mat-1 gene Proteins 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Drying Of Gases (AREA)
Abstract
The invention provides a moisture absorber, a transformer and an adsorbent dehumidifying method. The moisture absorber of the invention comprises: the shell is provided with a first cavity, the first cavity is provided with a first air outlet, and the first cavity is internally provided with an adsorbent; the breathing tube is arranged on the shell and is provided with a first air inlet, the breathing tube is communicated with the first cavity, and air can enter the first cavity through the breathing tube; a heater disposed within the first cavity, the heater operable to heat the adsorbent; and the inlet of the drain pipe stretches into the first cavity, and the outlet of the drain pipe is positioned at the outer side of the shell. Therefore, the dehumidifier according to the present invention has an advantage of long service life.
Description
Technical Field
The invention relates to the technical field of moisture absorbers, in particular to a moisture absorber, a transformer and an adsorbent dehumidification method.
Background
The transformer moisture absorber is a necessary part on large-scale oil immersed transformer equipment, and is communicated with the inside of the conservator through a pipeline, and when transformer oil is heated and swelled, redundant air in the transformer is exhaled; when the transformer oil temperature reduces shrinkage, outside air is inhaled. The silica gel or other moisture absorbent in the moisture absorber can absorb moisture entering the conservator capsule and the diaphragm due to the change of the transformer oil temperature, so that the transformer is prevented from being wetted, the moisture content of the transformer is always within the standard, and the insulation strength of the transformer oil is ensured. If the moisture absorber is not arranged or the silica gel of the moisture absorber fails, moisture and impurities entering the conservator cannot be filtered, so that the moisture of the transformer oil exceeds the standard, the insulation performance of the transformer oil is reduced, and the safety of the transformer is seriously threatened. In the related art, the transformer moisture absorber structure mainly comprises a shell, wherein a color-changing silica gel adsorbent is arranged in the shell, a connecting flange is arranged at the top of the shell, and a gas filtering device for filtering gas entering an inner cavity of the shell from the outside is arranged at the bottom of the shell. When moisture absorbed by the silica gel of the absorber reaches saturation, the water absorbing effect of the silica gel gradually weakens until the silica gel disappears, and a worker is required to replace the color-changing silica gel adsorbent. The replacement of silica gel requires the integral disassembly of the moisture absorber, and the disassembly and replacement times are frequent, and the waste silica gel is difficult to dispose. The disassembly is time-consuming and labor-consuming, and the whole wet absorber is scrapped due to poor disassembly and assembly process.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present invention provide a dehumidifier, a transformer, and an adsorbent dehumidifying method.
The dehumidifier of the embodiment of the invention comprises:
the shell is provided with a first cavity, the first cavity is provided with a first air outlet, and the first cavity is internally provided with an adsorbent;
the breathing tube is arranged on the shell and is provided with a first air inlet, the breathing tube is communicated with the first cavity, and air can enter the first cavity through the breathing tube;
a heater disposed within the first cavity, the heater operable to heat the adsorbent;
and the inlet of the drain pipe stretches into the first cavity, and the outlet of the drain pipe is positioned at the outer side of the shell.
Therefore, the dehumidifier according to the embodiment of the invention has the advantage of long service life.
The dehumidifier of the embodiment of the invention further comprises
The air guide sleeve is positioned in the first cavity, the air guide sleeve and the inner wall surface of the first cavity define an air guide cavity, the air guide sleeve is used for sealing the first air outlet, the air guide sleeve is provided with an air vent, the inlet of the drain pipe is communicated with the air guide cavity, and the first air inlet, the first cavity, the air vent, the air guide cavity and the first air outlet are sequentially communicated;
the dewfall device is positioned in the flow guiding cavity, the dewfall device is arranged on the periphery side of the first air outlet in a surrounding mode, and the dewfall device is used for cooling gas in the flow guiding cavity.
In some embodiments, the shell extends along the up-down direction, the first air outlet is formed on the top wall surface of the first cavity, and the breathing tube is arranged at the bottom of the shell;
the air guide sleeve comprises a first annular piece and a second annular piece, the axial direction of the first annular piece and the axial direction of the second annular piece are both in the up-down direction, the top of the first annular piece is connected with the top wall surface of the first cavity, a plurality of vent holes are formed, the aperture of each vent hole is smaller than the particle size of the adsorbent, a plurality of vent holes are formed in the first annular piece, the inner diameter of the second annular piece is reduced from top to bottom, and the inlet of the drain pipe is connected with the bottom of the second annular piece;
the dewfall device is connected with the top wall surface of the first cavity and comprises a plurality of protruding parts, the protruding parts are annular, the axial direction of the protruding parts is in the up-down direction, the protruding parts are sequentially arranged in the inside-outside direction, the thickness of each protruding part is reduced from top to bottom, and each protruding part has a preset size in the up-down direction;
the top of the respiratory tube is provided with a filter screen, and the pore diameter of the filter screen is smaller than the particle diameter of the adsorbent.
In some embodiments, the plurality of heaters are arranged in the first cavity at intervals along the circumferential direction of the shell;
the ratio of the dimension of each heater in the up-down direction to the dimension of the first cavity in the up-down direction is more than or equal to 2/3.
In some embodiments, a feeding hole and a discharging hole are formed in the shell, the feeding hole is located above the discharging hole, the feeding hole and the discharging hole are both communicated with the first cavity, and a first blocking head for blocking the feeding hole and a second blocking head for blocking the discharging hole are arranged on the shell;
the first cavity is internally provided with a temperature sensor and a humidity sensor, the temperature sensor is used for detecting the temperature in the first cavity, and the humidity sensor is used for detecting the humidity in the first cavity;
the drain pipe is provided with a first valve body and a one-way valve.
In some embodiments, the feed Kong Kaishe is at the top of the housing;
the plurality of discharging holes are formed, and the plurality of discharging holes Kong Kaishe are formed in the bottom of the side wall surface of the shell;
the bottom wall surface of the first cavity is a first inclined surface, the first inclined surface is annularly arranged on the periphery of the breathing tube, and the first inclined surface is obliquely arranged downwards along the direction adjacent to the discharge hole;
the included angle between the first inclined plane and the horizontal plane is more than or equal to 5 degrees and less than or equal to 30 degrees.
In some embodiments, the shell is provided with
The first protection cover is provided with a first protection net at the first end part, the temperature sensor is positioned in the first protection cover, the second end part of the first protection cover is positioned outside the shell, the second end part is provided with a first mounting port, and the second end part is provided with a third blocking head for blocking the first mounting port;
the second protection cover is arranged at the third end part of the second protection cover, the humidity sensor is positioned in the second protection cover, the fourth end part of the second protection cover is positioned at the outer side of the shell, the fourth end part is provided with a second mounting port, and a fourth blocking head for blocking the second mounting port is arranged on the fourth end part;
the observation windows are arranged on the side wall surface of the shell;
the oil collecting cup is connected with the bottom of the shell, insulating oil is contained in the oil collecting cup, and at least part of the breathing tube stretches into the oil collecting cup.
The moisture absorber of the embodiment of the invention further comprises a controller, wherein the heater, the first valve body, the temperature sensor and the humidity sensor are all connected with the controller, and the controller can control each of the plurality of heaters to be independently started and stopped.
The invention also provides a transformer, which comprises
The transformer comprises a transformer body, wherein an oil conservator is arranged on the transformer body;
the moisture absorber is the moisture absorber, and a first air outlet of the moisture absorber is communicated with the conservator.
The invention also provides an adsorbent dehumidifying method using the moisture absorber, wherein the moisture absorber comprises a plurality of heaters, and the adsorbent dehumidifying method comprises the following steps:
turning on a plurality of first parts of the heaters when the humidity in the first cavity of the moisture absorber is more than or equal to 80%;
turning on the first and second portions of the plurality of heaters when the humidity in the first cavity of the dehumidifier is 90% or more;
turning off the first and second portions of the plurality of heaters when the humidity in the first cavity of the dehumidifier is 60% or less;
when the humidity in the first cavity of the moisture absorber is 80% or more and the temperature in the first cavity of the moisture absorber is 90 ℃ or more, turning on the first portions of the plurality of heaters and turning off the second portions of the plurality of heaters;
and when the temperature in the first cavity of the moisture absorber is more than or equal to 100 ℃, turning off the first parts and the second parts of the plurality of heaters.
Drawings
Fig. 1 is a schematic view of a dehumidifier according to an embodiment of the present invention.
Fig. 2 is a top view of a heater according to an embodiment of the present invention.
Reference numerals:
a moisture absorber 100;
the device comprises a shell 1, a first cavity 11, a first air outlet 12, a feeding hole 13, a discharging hole 14, a first blocking head 15, a second blocking head 16, an observation window 17 and a first inclined plane 18;
breathing tube 2, first air inlet 21, filter screen 22;
a heater 3;
a drain pipe 4, a first valve body 41, a check valve 42;
the air guide sleeve 5, the air guide cavity 51, the first annular piece 52, the second annular piece 53, the dewfall device 54 and the bulge 55;
a temperature sensor 61, a humidity sensor 62, a first protective cover 63, a third blocking head 64, a second protective cover 65, and a fourth blocking head 66;
an oil collection cup 7;
and a controller 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a dehydrating breather 100 according to an embodiment of the present invention with reference to the accompanying drawings. As shown in fig. 1 and 2, a dehydrating breather 100 according to an embodiment of the present invention includes a housing 1, a breathing tube 2, a heater 3, and a drain pipe 4.
The housing 1 has a first cavity 11, the first cavity 11 having a first air outlet 12, the first cavity 11 containing an adsorbent therein. The breathing tube 2 is arranged on the shell 1, the breathing tube 2 is provided with a first air inlet 21, the breathing tube 2 is communicated with the first cavity 11, and air can enter the first cavity 11 through the breathing tube 2.
A heater 3 is provided in the first chamber 11, the heater 3 being operable to heat the adsorbent. The inlet of the drain pipe 4 extends into the first cavity 11, and the outlet of the drain pipe 4 is positioned outside the shell 1.
The moisture absorber 100 according to the embodiment of the present invention can make air enter the first cavity 11 from the first air inlet 21 of the breathing tube 2 by accommodating the adsorbent in the first cavity 1, and then contact with the adsorbent in the first cavity 11, so that the adsorbent absorbs moisture in the air, and thus the moisture in the air discharged from the first air outlet 12 is lower, and further the moisture in the air entering the conservator of the transformer is lower.
And a heater 3 is provided in the first chamber 11, the heater 3 being operable to heat the adsorbent. Therefore, when the absorbent absorbs moisture to reach the saturation amount, the heater 3 can heat the absorbent so as to evaporate the moisture in the absorbent, and the evaporated moisture in the first cavity 11 can be discharged from the drain pipe 4 after condensation. Therefore, the water absorption effect of the adsorbent is recovered, the adsorbent can be reused, and the frequency of disassembling and replacing the adsorbent can be reduced, namely, the frequency of disassembling the dehumidifier is reduced, so that the service life of the dehumidifier 100 can be prolonged. The water absorption effect of the water-absorbing agent gradually weakens until the water-absorbing agent disappears,
therefore, the dehumidifier 100 according to the embodiment of the present invention has an advantage of long service life.
As shown in fig. 1, in some embodiments, the casing 1 extends in an up-down direction, the first air outlet 12 is formed on a top wall surface of the first cavity 11, and the breathing tube 2 is disposed at a bottom of the casing 1. Specifically, the housing 1 is made of a stainless steel material. The first air outlet 12 penetrates through the top of the shell 1, and a connecting flange is arranged on the first air outlet 12, so that the first air outlet 12 is connected with a conservator of the transformer.
The breathing tube 2 extends in the up-down direction, the first air inlet 21 is a lower opening of the breathing tube 2, and an upper opening of the breathing tube 2 extends into the first cavity 11. The top of the breathing tube 2 is provided with a filter screen 22, and the pore diameter of the filter screen 22 is smaller than the particle diameter of the adsorbent, so that the adsorbent can be prevented from entering the breathing tube 2. The up-down direction is shown by the arrow in the figure. For example, the housing 1 is a cylindrical housing extending in the up-down direction, and the first chamber 11 is a cylindrical chamber extending in the up-down direction.
As shown in fig. 1, in some embodiments, the housing 1 is provided with a feed hole 13 and a discharge hole 14, and the feed hole 13 is located above the discharge hole 14. The feeding hole 13 and the discharging hole 14 are communicated with the first cavity 11, and a first blocking head 15 for blocking the feeding hole 13 and a second blocking head 16 for blocking the discharging hole 14 are arranged on the shell 1. In general, the color-changing silica gel adsorbent which is in failure of moisture absorption and saturation can be reused after being dried, but the color-changing silica gel adsorbent is frequently used, has reduced performance even is completely failed after repeated baking, and is generally not reused. Thus, when the adsorbent needs to be replaced, the second stopper 16 can be opened so that the adsorbent can be discharged from the discharge hole 14 out of the first chamber 11. After the discharge is completed, the discharge hole 14 may be blocked by using the second blocking cap 16, and then the first blocking cap 15 is opened to fill the first cavity 11 through the feed hole 13. Filling and discharging through the inlet 13 and outlet 14 holes may facilitate replacement of the adsorbent, thereby further reducing the frequency of disassembly of the breather 100.
In some embodiments, the feed aperture 13 opens at the top of the housing 1. The number of the discharging holes 14 is plural, and the plurality of discharging holes 14 are arranged at the bottom of the side wall surface of the shell 1. Specifically, the plurality of discharging holes 14 are circumferentially spaced apart, the plurality of second plugs 16 are provided, and the plurality of second plugs 16 are correspondingly matched with the plurality of discharging holes 14 one by one.
The bottom wall surface of the first cavity 11 is a first inclined surface 18, the first inclined surface 18 is annularly arranged on the periphery side of the breathing tube 2, and the first inclined surface 18 (in the radial direction of the shell 1) is obliquely arranged downwards along the direction adjacent to the discharge hole 14. Specifically, the first inclined surface 18 is an annular surface, and the first inclined surface 18 decreases downward in a direction from the middle to the side. Thereby facilitating the movement of the adsorbent in the direction of the discharge hole 14 and facilitating the discharge of the adsorbent.
The first inclined surface 18 has an angle of 5 ° or more and 30 ° or less with respect to the horizontal plane. For example, the first incline 18 is 15 ° from the horizontal.
As shown in fig. 1, in some embodiments, the moisture absorber 100 according to an embodiment of the present invention further includes a pod 5 and a dew point blower 54.
The air guide sleeve 5 is positioned in the first cavity 11, and the air guide sleeve 5 and the inner wall surface of the first cavity 11 define an air guide cavity 51. The air guide sleeve 5 is used for sealing the first air outlet 12, the air guide sleeve 5 is provided with an air vent, the inlet of the water discharge pipe 4 is communicated with the air guide cavity 51, and the first air inlet 21, the first cavity 11, the air vent, the air guide cavity 51 and the first air outlet 12 are sequentially communicated. Thereby, air can be made to pass through the first air inlet 21, the first chamber 11, the ventilation hole, the flow guiding chamber 51, and the first air outlet 12 in this order, so that moisture in the air can be absorbed by the adsorbent.
The condensation device 54 is located in the flow guiding cavity 51, the condensation device 54 is annularly arranged on the periphery side of the first air outlet 12, and the condensation device 54 is used for cooling air in the flow guiding cavity 51. Thus, after the heater 3 heats the adsorbent, the moisture in the adsorbent is heated and evaporated, and the water vapor enters the diversion cavity 51 through the ventilation holes of the diversion cover 5, the water vapor can be cooled by the dewfall device 54, and the condensed water vapor can be discharged from the drain pipe 4 to the housing 1. For example, the dew condensation device 54 has a coolant therein.
As shown in fig. 1, in some embodiments, the pod 5 includes a first annular member 52 and a second annular member 53. The axial direction of the first annular piece 52 and the axial direction of the second annular piece 53 are both vertical directions, the top of the first annular piece 52 is connected with the top wall surface of the first cavity 11, a plurality of vent holes are formed, the aperture of each vent hole is smaller than the particle size of the adsorbent, and a plurality of vent holes are formed in the first annular piece 52. The inner diameter of the second ring member 53 decreases from top to bottom, and the inlet of the drain pipe 4 is connected to the bottom of the second ring member 53. Thereby facilitating the water to enter the drain pipe 4 after condensation.
The condensation device 54 is connected to the top wall surface of the first chamber 11, and the condensation device 54 includes a plurality of protruding portions 55. The protruding portions 55 are annular, the axial direction of the protruding portions 55 is the up-down direction, the plurality of protruding portions 55 are sequentially arranged in the (housing 1) inner-outer direction, the thickness of each protruding portion 55 decreases from top to bottom, and each protruding portion 55 has a preset size in the up-down direction. Specifically, the boss 55 is made of a metal material, and air entering the flow guide chamber 51 from the plurality of ventilation holes is condensed after encountering the condensation device 54. For example, the boss 55 is an aluminum product.
As shown in fig. 1, in some embodiments, the drain pipe 4 is provided with a first valve body 41 and a check valve 42. The check valve 42 prevents air outside the housing 1 from entering the diversion cavity 51 from the drain pipe 4 when closed. The first valve body 41 is opened to allow water to be discharged from the drain pipe 4 to the housing 1. For example, the first valve body 41 is a solenoid valve.
As shown in fig. 1 and 2, in some embodiments, the heater 3 is plural, and the plural heaters 3 are disposed in the first cavity 11 at intervals along the circumferential direction of the housing 1. The ratio of the dimension of each heater 3 in the up-down direction to the dimension of the first chamber 11 in the up-down direction is 2/3 or more. Specifically, the heaters 3 are electric heaters, and the plurality of heaters 3 may dry the adsorbent in the first chamber 11. Each heater 3 may be activated individually. For example, four heaters 3 are arranged at intervals in the circumferential direction. The ratio of the dimension of each heater 3 in the up-down direction to the dimension of the first chamber 11 in the up-down direction is 4/5.
In some embodiments, a temperature sensor 61 and a humidity sensor 62 are disposed within the first cavity 11. The temperature sensor 61 is used for detecting the temperature in the first chamber 11, and the humidity sensor 62 is used for detecting the humidity in the first chamber 11. Thereby facilitating the detection of temperature and humidity within the first chamber 11, and at least part of the plurality of heaters 3 may be activated to dry the adsorbent when the humidity is too high. At least part of the plurality of heaters 3 may be turned off in order to reduce the temperature in the first chamber 11 when the temperature is too high.
As shown in fig. 1, in some embodiments, the housing 1 is provided with a first shield 63, a second shield 65, a plurality of viewing windows 17, and a collection cup 7.
The first end of the first protective cover 63 is provided with a first protective net, the temperature sensor 61 is located in the first protective cover 63, the second end of the first protective cover 63 is located outside the shell 1, the second end is provided with a first mounting opening, and the second end is provided with a third blocking head 64 for blocking the first mounting opening. Specifically, the first end portion of the first protection cover 63 is located in the first cavity 11, and the third blocking head 64 can be opened when the temperature sensor 61 needs to be replaced.
The third end of the second protective cover 65 is provided with a second protective net, the humidity sensor 62 is located in the second protective cover 65, the fourth end of the second protective cover 65 is located outside the shell 1 and is provided with a second mounting port, and the fourth end is provided with a fourth blocking head 66 for blocking the second mounting port. Specifically, the third end of the second protective cover 65 is located in the first cavity 11, and the fourth blocking head 66 can be opened when the humidity sensor 62 needs to be replaced.
As shown in fig. 1, a plurality of observation windows 17 are provided in a side wall surface of the housing 1. Specifically, the plurality of observation windows 17 are provided at intervals in the up-down direction, and the color change of the adsorbent in the first chamber 11 can be observed through the plurality of observation windows 17.
The oil collecting cup 7 is connected with the bottom of the shell 1, insulating oil is contained in the oil collecting cup 7, and at least part of the breathing tube 2 extends into the oil collecting cup 7. Thereby, the insulating oil of the oil collecting cup 7 can absorb moisture in the air entering the breathing tube 2 so as to primarily reduce the moisture in the air. When the internal pressure of the transformer changes due to expansion with heat and contraction with cold, the insulating oil has the function of moisture absorption, so that the first moisture absorption barrier can be realized.
As shown in fig. 1, in some embodiments, the breather 100 further includes a controller 8, and the heater 3, the first valve body 41, the temperature sensor 61, and the humidity sensor 62 are all connected to the controller 8. The controller 8 may control each of the plurality of heaters 3 to be turned on and off individually. Specifically, a key is provided on the controller 8, and the controller 8 can control the on/off of each of the plurality of heaters 3. After the temperature sensor 61 and the humidity sensor 62 transmit the temperature data and the humidity data to the controller 8, the controller 8 may control at least a partial activation of the heater 3 and cause the first valve body 41 to be opened. Thereby realizing the function of automatically drying the adsorbent and realizing the reusability of the adsorbent.
The invention also provides a transformer, and the transformer of the embodiment of the invention comprises a transformer body and the moisture absorber 100 according to the embodiment of the invention. The transformer body is provided with a conservator, and the first air outlet 12 of the moisture absorber 100 is communicated with the conservator (an inner capsule or a diaphragm) through a flange.
Therefore, the transformer according to the embodiment of the present invention has the advantage of long service life of the dehydrating breather 100.
The present invention also proposes a method of dehumidifying an adsorbent of a dehumidifier 100 according to an embodiment of the present invention, the dehumidifier 100 comprising a plurality of heaters 3. For example, the dehumidifier 100 includes four heaters 3.
The adsorbent dehumidifying method according to the embodiment of the invention comprises the following steps:
when the humidity in the first chamber 11 of the dehydrating breather 100 is 80% or more, the first portions of the plurality of heaters 3 are turned on. For example, when the humidity in the first chamber 11 of the dehydrating breather 100 is 80% or more, the two heaters 3 are turned on.
When the humidity in the first chamber 11 of the dehydrating breather 100 is 90% or more, the first and second portions of the plurality of heaters 3 are turned on. For example, when the humidity in the first chamber 11 of the dehydrating breather 100 is 90% or more, the four heaters 3 are turned on.
When the humidity in the first chamber 11 of the dehydrating breather 100 is 60% or less, the first and second portions of the plurality of heaters 3 are turned off. For example, when the humidity in the first chamber 11 of the dehydrating breather 100 is 60% or less, the four heaters 3 are turned off.
When the humidity in the first chamber 11 of the dehydrating breather 100 is 80% or more and the temperature in the first chamber 11 of the dehydrating breather 100 is 90 ℃ or more, the first portions of the plurality of heaters 3 are turned on and the second portions of the plurality of heaters 3 are turned off. For example, when the humidity in the first chamber 11 of the dehydrating breather 100 is 80% or more and the temperature in the first chamber 11 of the dehydrating breather 100 is 90 ℃ or more, the two heaters 3 are turned on and the two heaters 3 are turned off.
When the temperature in the first chamber 11 of the dehydrating breather 100 is 100 deg.c or more, the first and second portions of the plurality of heaters 3 are turned off. For example, when the temperature in the first chamber 11 of the dehydrating breather 100 is 100 ℃ or higher, the four heaters 3 are turned off.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.
Claims (10)
1. A moisture absorber, comprising:
the shell is provided with a first cavity, the first cavity is provided with a first air outlet, and the first cavity is internally provided with an adsorbent;
the breathing tube is arranged on the shell and is provided with a first air inlet, the breathing tube is communicated with the first cavity, and air can enter the first cavity through the breathing tube;
a heater disposed within the first cavity, the heater operable to heat the adsorbent;
and the inlet of the drain pipe stretches into the first cavity, and the outlet of the drain pipe is positioned at the outer side of the shell.
2. The dehydrator breather of claim 1, further comprising
The air guide sleeve is positioned in the first cavity, the air guide sleeve and the inner wall surface of the first cavity define an air guide cavity, the air guide sleeve is used for sealing the first air outlet, the air guide sleeve is provided with an air vent, the inlet of the drain pipe is communicated with the air guide cavity, and the first air inlet, the first cavity, the air vent, the air guide cavity and the first air outlet are sequentially communicated;
the dewfall device is positioned in the flow guiding cavity, the dewfall device is arranged on the periphery side of the first air outlet in a surrounding mode, and the dewfall device is used for cooling gas in the flow guiding cavity.
3. A moisture absorber according to claim 2, wherein,
the shell extends along the up-down direction, the first air outlet is formed in the top wall surface of the first cavity, and the breathing tube is arranged at the bottom of the shell;
the air guide sleeve comprises a first annular piece and a second annular piece, the axial direction of the first annular piece and the axial direction of the second annular piece are both in the up-down direction, the top of the first annular piece is connected with the top wall surface of the first cavity, a plurality of vent holes are formed, the aperture of each vent hole is smaller than the particle size of the adsorbent, a plurality of vent holes are formed in the first annular piece, the inner diameter of the second annular piece is reduced from top to bottom, and the inlet of the drain pipe is connected with the bottom of the second annular piece;
the dewfall device is connected with the top wall surface of the first cavity and comprises a plurality of protruding parts, the protruding parts are annular, the axial direction of the protruding parts is in the up-down direction, the protruding parts are sequentially arranged in the inside-outside direction, the thickness of each protruding part is reduced from top to bottom, and each protruding part has a preset size in the up-down direction;
the top of the respiratory tube is provided with a filter screen, and the pore diameter of the filter screen is smaller than the particle diameter of the adsorbent.
4. A moisture absorber according to claim 3, wherein,
the plurality of heaters are arranged in the first cavity at intervals along the circumferential direction of the shell;
the ratio of the dimension of each heater in the up-down direction to the dimension of the first cavity in the up-down direction is more than or equal to 2/3.
5. A moisture absorber according to claim 3, wherein,
the shell is provided with a feeding hole and a discharging hole, the feeding hole is positioned above the discharging hole, the feeding hole and the discharging hole are both communicated with the first cavity, and the shell is provided with a first blocking head for blocking the feeding hole and a second blocking head for blocking the discharging hole;
the first cavity is internally provided with a temperature sensor and a humidity sensor, the temperature sensor is used for detecting the temperature in the first cavity, and the humidity sensor is used for detecting the humidity in the first cavity;
the drain pipe is provided with a first valve body and a one-way valve.
6. The moisture absorber of claim 5 wherein the moisture absorber comprises,
the feed Kong Kaishe is at the top of the housing;
the plurality of discharging holes are formed, and the plurality of discharging holes Kong Kaishe are formed in the bottom of the side wall surface of the shell;
the bottom wall surface of the first cavity is a first inclined surface, the first inclined surface is annularly arranged on the periphery of the breathing tube, and the first inclined surface is obliquely arranged downwards along the direction adjacent to the discharge hole;
the included angle between the first inclined plane and the horizontal plane is more than or equal to 5 degrees and less than or equal to 30 degrees.
7. The moisture absorber of claim 5 wherein the moisture absorber comprises,
the shell is provided with
The first protection cover is provided with a first protection net at the first end part, the temperature sensor is positioned in the first protection cover, the second end part of the first protection cover is positioned outside the shell, the second end part is provided with a first mounting port, and the second end part is provided with a third blocking head for blocking the first mounting port;
the second protection cover is arranged at the third end part of the second protection cover, the humidity sensor is positioned in the second protection cover, the fourth end part of the second protection cover is positioned at the outer side of the shell, the fourth end part is provided with a second mounting port, and a fourth blocking head for blocking the second mounting port is arranged on the fourth end part;
the observation windows are arranged on the side wall surface of the shell;
the oil collecting cup is connected with the bottom of the shell, insulating oil is contained in the oil collecting cup, and at least part of the breathing tube stretches into the oil collecting cup.
8. The dehydrating breather of any of claims 5-7 further comprising a controller, wherein the heater, the first valve body, the temperature sensor and the humidity sensor are all connected to the controller, wherein the controller is operable to control each of the plurality of heaters to be turned on and off individually.
9. A transformer, comprising
The transformer comprises a transformer body, wherein an oil conservator is arranged on the transformer body;
a moisture absorber, wherein the moisture absorber is as claimed in any one of claims 1 to 8, and the first air outlet of the moisture absorber is communicated with the conservator.
10. A method of dehumidifying an adsorbent using the moisture absorber of any one of claims 1 to 8, wherein the moisture absorber comprises a plurality of heaters, the method comprising the steps of:
turning on a plurality of first parts of the heaters when the humidity in the first cavity of the moisture absorber is more than or equal to 80%;
turning on the first and second portions of the plurality of heaters when the humidity in the first cavity of the dehumidifier is 90% or more;
turning off the first and second portions of the plurality of heaters when the humidity in the first cavity of the dehumidifier is 60% or less;
when the humidity in the first cavity of the moisture absorber is 80% or more and the temperature in the first cavity of the moisture absorber is 90 ℃ or more, turning on the first portions of the plurality of heaters and turning off the second portions of the plurality of heaters;
and when the temperature in the first cavity of the moisture absorber is more than or equal to 100 ℃, turning off the first parts and the second parts of the plurality of heaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310678200.1A CN116666056A (en) | 2023-06-08 | 2023-06-08 | Moisture absorber, transformer and adsorbent dehumidification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310678200.1A CN116666056A (en) | 2023-06-08 | 2023-06-08 | Moisture absorber, transformer and adsorbent dehumidification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117839400A (en) * | 2024-03-07 | 2024-04-09 | 张家港市沃尔特精密机械有限公司 | Efficient dehumidifying device |
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2023
- 2023-06-08 CN CN202310678200.1A patent/CN116666056A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117839400A (en) * | 2024-03-07 | 2024-04-09 | 张家港市沃尔特精密机械有限公司 | Efficient dehumidifying device |
| CN117839400B (en) * | 2024-03-07 | 2024-05-24 | 张家港市沃尔特精密机械有限公司 | Efficient dehumidifying device |
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