CN212990872U - Maintenance-free moisture absorption device - Google Patents
Maintenance-free moisture absorption device Download PDFInfo
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- CN212990872U CN212990872U CN202021535838.8U CN202021535838U CN212990872U CN 212990872 U CN212990872 U CN 212990872U CN 202021535838 U CN202021535838 U CN 202021535838U CN 212990872 U CN212990872 U CN 212990872U
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- moisture absorption
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Abstract
The utility model relates to a maintenance-free moisture absorption device, which comprises a condensation cover, wherein the upper end of the condensation cover is communicated with a condensation cavity, the lower end of the condensation cover is communicated with a ventilation base, the ventilation base is communicated with an air inlet and outlet component, a breathing tube is arranged in the condensation cover and is communicated with the condensation cavity, a reticular heating component is arranged around the breathing tube, and moisture absorption silica gel is uniformly distributed on the reticular heating component; when air is fed, the air enters the breathing tube through the ventilation base and the moisture absorption silica gel and flows out of the condensation cavity; when giving vent to anger, gaseous admission condenser pipe through respiratory tube and hygroscopic silica gel, gets into the business turn over gas subassembly from the base of ventilating. The utility model discloses can avoid damp and hot air by suction apparatus, the volume is less, easy installation, non-maintaining.
Description
Technical Field
The utility model relates to a moisture absorption device specifically is a non-maintaining moisture absorption device.
Background
The moisture absorption silica gel is used as an air humidity filtering material and applied to filtering of air holes in the transformer oil storage cabinet, and is mainly used for filtering moisture and dust in air. The color-changing silica gel is adopted to judge whether the moisture absorption material is invalid or not by the observation of human eyes, the past method is that the color of 1/3 silica gel is found to change to new silica gel, and the invalid silica gel can only be discarded.
Aiming at the problems, the prior art develops a device for automatically reducing the failed silica gel in an online heating mode, the principle is adopted, whether the silica gel fails or not is judged by using a method for detecting air humidity after the silica gel is filtered, if the humidity is too high, the silica gel is considered to fail, and a heating device is started to heat and dehydrate the silica gel, so that the purposes of reusing the silica gel and changing waste into valuables are achieved.
There are two significant problems with the above:
1. the air inlet and the air outlet of the air vent of the transformer oil storage cabinet change in real time along with the expansion and contraction of the oil, and the expansion and contraction of the oil change along with the load of the transformer and can be irregularly circulated. This will have the possibility that damp and hot steam is inhaled transformer conservator when silica gel is heating dehydration, further threatens the reliable operation of transformer.
2. The part of giving vent to anger admits air has adopted metal sintering net structural style, plays the effect of filtered air dust, but the breathing state can't be observed, and original traditional formula desiccator below has configured the oil cup, exhales and has the bubble to take place when breathing in, and the transformer user can observe this phenomenon, does benefit to and judges whether the oil conservator air vent is unblocked, because in case the air vent blocks up, can lead to gas relay mistake to move, can keep apart the air of external in the device completely behind the installation oil cup in addition.
However, the currently studied maintenance-free moisture absorber cannot be provided with an oil cup because the water path and the air path are both channels.
In order to solve the major problems of the MR maintenance-free moisture absorber, the prior art also adopts a dual-tube structure with one use and one standby, and ensures that the sucked air is dry through an automatic switching mode of an electromagnetic valve, so as to achieve the purpose of real maintenance-free. After the use of a user, the maintenance-free moisture absorber with the double-tube structure is found to be too large when applied to a transformer with larger capacity, so that the design and installation are not facilitated; the breathing state cannot be observed.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a simple structure to can avoid damp and hot air to be inhaled the transformer and store up oil tank, can install the oil cup, the less easy non-maintaining moisture absorption device who installs of volume.
The technical scheme of the utility model is specifically as follows:
a maintenance-free moisture absorption device comprises a condensation cover, wherein the upper end of the condensation cover is communicated with a condensation cavity, the lower end of the condensation cover is communicated with a ventilation base, the ventilation base is communicated with an air inlet and outlet assembly, a breathing tube is arranged in the condensation cover and is communicated with the condensation cavity, a net-shaped heating component is arranged around the breathing tube, and moisture absorption silica gel is uniformly distributed on the net-shaped heating component; when air is fed, the air enters the breathing tube through the ventilation base and the moisture absorption silica gel and flows out of the condensation cavity; when giving vent to anger, gaseous admission condenser pipe through respiratory tube and hygroscopic silica gel, gets into the business turn over gas subassembly from the base of ventilating.
Furthermore, condensation cover one side is equipped with the color sensor, and the refrigeration part, netted heater block, the color sensor and the control end of condensation chamber are connected, and the control end passes through the color sensor and judges whether moisture absorption silica gel is effective moisture absorption state to in time heat or refrigerate moisture absorption silica gel through netted heater block or refrigeration part according to the judged result.
Furthermore, the condensation cavity comprises an air duct, one end of the air duct is communicated with the top end of the breathing tube, the other end of the air duct is communicated with a flange port of the connecting flange, and the flange port is connected with equipment to be dehumidified; the outside symmetry of air pipe is provided with semiconductor refrigeration piece, radiating part and thermal insulation material, and lower extreme on the condensation cavity is located to thermal insulation material, and semiconductor refrigeration piece and radiating part are located between the thermal insulation material, and the air pipe outside is located to the semiconductor refrigeration piece, and the semiconductor refrigeration piece outside is located to the radiating part, and the semiconductor refrigeration piece is connected with the control end.
Furthermore, the ventilation base is conical, the air channel is arranged along the edge of the base, and the bottom ventilation hole is communicated with the air inlet and outlet assembly.
Further, business turn over gas subassembly from the top down includes impeller cavity, filter chamber and heating chamber, and impeller cavity shape matches with the impeller, and the downside is equipped with the air flue on the impeller cavity, and downside air flue and filter chamber intercommunication are equipped with the filtration filler in the filter chamber, and the filter chamber is equipped with the air vent all around, is equipped with the heating plate in the heating chamber, and the heating plate is connected with the control end.
Further, the reticular heating component is a carbon fiber array structure resistance net.
Furthermore, the heating plate is a PTC constant temperature heating core, and the control end controls the PTC constant temperature heating core to prevent freezing according to the external environment temperature value and the dehydration control mark position.
The utility model discloses a condensation cavity that sets up the intercommunication below the flange and sets up carries out the filtration of semiconductor condensation air with the wet and hot steam that inhales in the heating regeneration process, and when the wet and hot air flowed through condensation cavity, water and gas were quick separation, guaranteed that the incoming air is dry, thereby when adopting single tube construction to reduce the volume, prevented the problem that wet and hot steam was inhaled in the heating regeneration process; after the semiconductor refrigerating sheet is electrified, the heat absorption surface of the semiconductor refrigerating sheet is utilized to generate a refrigerating effect.
The utility model discloses a set up the filtration filler of filter chamber and increased the passageway length that the air got into, dust in can effectual filtering air to utilize the setting impeller in the impeller cavity just reversing and gaseous inflow and outflow correspond, the accurate breathing state who reflects its during operation.
The utility model discloses a heating chamber that sets up can guarantee that it also can ensure not freezing in the filter chamber in the lower northeast area of temperature in winter, thoroughly prevents the air flue and blocks up.
The silica gel saturation detection of the utility model adopts the color sensor to analyze the color change condition of the silica gel in the visible area, so as to judge whether the silica gel can effectively absorb moisture; by directly collecting the color parameters of the reaction silica gel humidity, the error of data obtained by indirect detection is avoided, and the detection accuracy and the working efficiency are improved.
The utility model ensures the uniform heating of the moisture absorption silica gel and the minimum influence on the silica gel filtration performance through the arranged carbon fiber array; meanwhile, the metal filter screen sleeved outside the metal filter screen is utilized, so that the filtering efficiency of the metal filter screen is improved, and good mechanical strength and structural stability are provided for the metal filter screen.
The utility model discloses a setting of thermal insulation material can improve refrigeration efficiency, prevents that outside heat energy from getting into the refrigeration region through the conduction mode.
The utility model discloses a setting is in the business turn over gas pocket of outer fringe, guarantees under the condition that the air current leads to in the same direction as, is convenient for avoid its rethread bottom moisture absorption silica gel resorption to the direct collection of the comdenstion water that the condensation covered.
The utility model can filter out the interference information by a method of reading in and averaging for many times, improve the detection precision, determine the moisture absorption silica gel state by utilizing the contrast of the color, and improve the judgment basis for the subsequent drying; meanwhile, drying operation is carried out in a load stabilization period, so that water in the silica gel can be analyzed; and the transformer load fluctuation is small during the whole heating dehydration period, the air is hardly discharged and is not sucked, even if a breathing process is carried out, the moisture and the air can be separated by the hot and humid air passing through the condensation cavity, and the moisture-containing gas is prevented from being sucked into the transformer.
The utility model can improve the drying efficiency through intermittent heating and ensure the effectiveness of the reduced moisture absorption silica gel; meanwhile, the synchronous lag control of the semiconductor refrigerating sheet and the heating sheet ensures the condensation and unfreezing effects of the steam.
Compared with the prior art, the utility model discloses following profitable technological effect has:
(1) the utility model ensures that the incoming air is dry, thereby preventing the problem that the damp and hot steam is sucked in the heating and regenerating process while adopting a single-tube structure to reduce the volume; after the semiconductor refrigerating sheet is electrified, the heat absorption surface of the semiconductor refrigerating sheet is utilized to generate a refrigerating effect, so that the semiconductor refrigerating sheet is small in size, low in price and environment-friendly; the whole structure is simple, the design is reasonable, the control is convenient, the processing is convenient, and the safety and the reliability are realized.
(2) The utility model discloses dust in can effectual filtering air to utilize the setting impeller in the impeller cavity just reversing and gaseous inflow and outflow correspond, accurate reaction goes out the respiratory state of its during operation.
(3) The utility model discloses can guarantee that it also can ensure not freezing in the filter chamber in the lower northeast of China of temperature in winter, thoroughly prevent the air flue and block up.
(4) The utility model discloses a colour parameter to reaction silica gel humidity is direct to gather, has avoided it to obtain the error of data through indirect detection, has improved the accuracy of its detection and the efficiency of work.
Interference information can be filtered by a method of reading in and averaging for multiple times, detection precision is improved, the moisture absorption silica gel state is determined by utilizing color contrast, and judgment basis is improved for subsequent drying; meanwhile, drying operation is carried out in a load stabilization period, so that water in the silica gel can be analyzed; and the transformer load fluctuation is small during the whole heating dehydration period, the air is hardly discharged and is not sucked, even if a breathing process is carried out, the moisture and the air can be separated by the hot and humid air passing through the condensation cavity, and the moisture-containing gas is prevented from being sucked into the transformer.
(5) The utility model ensures the uniform heating of the moisture absorption silica gel and the minimum influence on the silica gel filtration performance through the arranged carbon fiber array; meanwhile, the metal filter screen sleeved outside the metal filter screen is utilized, so that the filtering efficiency of the metal filter screen is improved, and good mechanical strength and structural stability are provided for the metal filter screen.
(6) The utility model discloses a setting of thermal insulation material can improve refrigeration efficiency, prevents that outside heat energy from getting into the refrigeration region through the conduction mode. Through setting up the business turn over gas pocket at the outer fringe, guarantee under the condition that the air current leads to in the same direction as, be convenient for to the direct collection of the comdenstion water on the condensation cover, avoid its rethread bottom moisture absorption silica gel resorption. The drying efficiency can be improved through intermittent heating, and the effectiveness of the reduced hygroscopic silica gel is ensured; meanwhile, the synchronous lag control of the semiconductor refrigerating sheet and the heating sheet ensures the condensation and unfreezing effects of the steam.
Drawings
FIG. 1 is a schematic structural view of the apparatus of the present invention;
fig. 2 is a schematic structural view of the condensation chamber of the present invention;
FIG. 3 is a schematic structural view of the air inlet/outlet assembly of the present invention;
in the figure: 1-connecting flange, 2-connecting seat, 3-condensing cover, 4-air inlet and outlet component, 41-impeller cavity, 42-filtering cavity, 43-heating cavity, 44-impeller, 45-observation window, 46-filtering filler, 47-air hole, 48-heating plate, 5-hygroscopic silica gel, 6-controller, 61-color sensor, 7-breathing tube, 8-condensing cavity, 81-ventilation pipeline, 82-semiconductor refrigerating plate, 83-radiator, 84-heat insulating material, 9-ventilation base, 91-air inlet and outlet hole and 10-carbon fiber array structure resistance net.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art. The use of "first," "second," and similar terms in the present embodiments does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.
As shown in fig. 1, the non-maintaining moisture absorption device for transformer oil conservator of this embodiment, including flange 1, flange 1 middle part cavity, flange 1 is connected with connecting seat 2, be equipped with condensation chamber 8 in the connecting seat 2, condensation cover 3 upper end and condensation chamber 8 intercommunication, the lower extreme with ventilate base 9 intercommunication, it communicates with business turn over gas subassembly 4 to ventilate base 9, be equipped with respiratory tube 7 in the condensation cover 3, respiratory tube 7 and condensation chamber 8 intercommunication, be equipped with carbon fiber array structure resistance net 10 around respiratory tube 7, moisture absorption silica gel evenly is array distribution on carbon fiber array structure resistance net 10.
As shown in fig. 2, the condensation chamber 8 comprises an air duct 81, one end of the air duct 81 is communicated with the top end of the breathing tube 7, the other end is communicated with a flange port of the connecting flange 1, and the flange port is connected with the transformer oil conservator; the semiconductor cooling fins 82, the heat radiating member 83, and the heat insulating material 84 are symmetrically disposed outside the ventilation duct 81, and the heat radiating member 83 and the heat insulating material 84 are conventional materials.
The heat insulating material 84 is arranged at the upper end and the lower end of the condensation cavity 8, the semiconductor refrigeration piece 82 and the heat radiating component 83 are arranged between the heat insulating material 84, the semiconductor refrigeration piece 82 is arranged outside the ventilation pipeline 81, the heat radiating component 83 is arranged outside the semiconductor refrigeration piece 82, and the semiconductor refrigeration piece 82 is connected with the controller 6. The controller 6 may be disposed in a control box.
The ventilating base 9 is conical, the air inlet and outlet hole 91 is arranged along the edge of the base, and the bottom air hole is communicated with the air inlet and outlet assembly 4.
As shown in fig. 3, the air inlet and outlet assembly 4 comprises an impeller cavity 41, a filter cavity 42 and a heating cavity 43 from top to bottom, the impeller cavity 41 is matched with an impeller 44 in shape and is provided with an observation window 45, air passages are arranged on the upper side and the lower side of the impeller cavity 41, the air passages on the lower side are communicated with the filter cavity, filter fillers 46 are arranged in the filter cavity, vent holes 47 are arranged on the periphery of the filter cavity 42, heating plates 48 are arranged in the heating cavity 43, and the heating plates 48 are connected with the controller 6. The heating sheet 48 is a PTC constant temperature heating core, and the controller controls the PTC constant temperature heating core to prevent freezing according to the external environment temperature value and the dehydration control flag bit.
The control end judges whether the moisture absorption silica gel is in an effective moisture absorption state through the color sensor, and the method specifically comprises the following steps:
the control end collects the color information of the moisture absorption silica gel in real time; comparing the RGB value at the comparison time position of the day with the set RGB value according to the set date, setting a night dehydration control mark if the set RGB value is greater than the acquired color RGB value, starting refrigeration through a semiconductor refrigeration sheet 82, then heating through a carbon fiber array structure resistance net 10, and stopping heating and then stopping refrigeration after the reduction process of the moisture absorption silica gel is finished; otherwise, the night dehydration control flag is cleared.
The control method of the device is carried out as follows:
the device is placed on equipment to be dehumidified, and when air enters, air enters the breathing tube through the ventilation base and the moisture absorption silica gel, flows out of the condensation cavity and enters the equipment; when air is discharged, the air enters the condensation pipe, passes through the breathing pipe and the moisture absorption silica gel, and enters the air inlet and outlet assembly from the ventilation base;
the control end judges whether the moisture absorption silica gel is in an effective moisture absorption state through the color sensor, and heats or refrigerates the moisture absorption silica gel through the mesh-shaped heating part or the refrigerating part in time according to a judgment result;
and the control end controls the heating sheet to prevent freezing according to the external environment temperature value and the dehydration control flag bit.
The control end collects the color information of the moisture absorption silica gel for multiple times in real time to calculate an average value; comparing the RGB value at the comparison time position of the day with the set RGB value according to the set date, setting a night dehydration control mark if the set RGB value is greater than the acquired color RGB value, starting refrigeration through a semiconductor refrigeration sheet 82, then heating through a carbon fiber array structure resistance net 10, and stopping heating and then stopping refrigeration after the reduction process of the moisture absorption silica gel is finished; otherwise, the night dehydration control flag is cleared.
The air inlet and outlet part at the bottom of the maintenance-free moisture absorber of the utility model adopts a three-stage cavity structure, as shown in fig. 3, which is an impeller cavity 41, a filter cavity 42 and a heating cavity 43. The impeller cavity 41 is provided with an exhaust hole which is opposite to the impeller 44, and the inflow and the outflow of the gas can drive the impeller 44 to rotate forwards and backwards; the filter chamber 42 is filled with a filter filling 46 using ceramic particles to increase the length of the air inlet and outlet paths for filtering dust in the air. The PTC constant temperature heating core capable of being automatically controlled is installed in the heating cavity 43, so that air passage blockage caused by icing in the filtering cavity when outdoor temperature is low is prevented. The controller may be an existing single-chip microcomputer.
The anti-freezing control is realized by adopting a PTC constant temperature heating sheet mode, and the single chip microcomputer determines the control input and the control exit according to the external environment temperature value and the dehydration control flag bit.
In the preferred embodiment, if the outside temperature is lower than the set 1 ℃ and the dehydration control flag is 1, that is, when dehydration is being performed, the PTC heating is turned on when the carbon fiber heating is started, and the continuous operation is ended for 22 hours.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A maintenance-free moisture absorption device is characterized in that: the condensation device comprises a condensation cover, wherein the upper end of the condensation cover is communicated with a condensation cavity, the lower end of the condensation cover is communicated with a ventilation base, the ventilation base is communicated with an air inlet and outlet assembly, a breathing pipe is arranged in the condensation cover and is communicated with the condensation cavity, a net-shaped heating component is arranged around the breathing pipe, and the moisture absorption silica gel is uniformly distributed on the net-shaped heating component; when air is fed, the air enters the breathing tube through the ventilation base and the moisture absorption silica gel and flows out of the condensation cavity; when giving vent to anger, gaseous admission condenser pipe through respiratory tube and hygroscopic silica gel, gets into the business turn over gas subassembly from the base of ventilating.
2. The maintenance-free absorbent device of claim 1, wherein: condensation cover one side is equipped with the color sensor, and the refrigeration part, netted heater block, the color sensor and the control end of condensation chamber are connected, and the control end passes through the color sensor and judges whether moisture absorption silica gel is effective moisture absorption state to in time heat or refrigerate moisture absorption silica gel through netted heater block or refrigeration part according to the judged result.
3. The maintenance-free absorbent device of claim 1, wherein: the condensation cavity comprises an air duct, one end of the air duct is communicated with the top end of the breathing tube, the other end of the air duct is communicated with a flange port of the connecting flange, and the flange port is connected with equipment to be dehumidified; the outside symmetry of air pipe is provided with semiconductor refrigeration piece, radiating part and thermal insulation material, and lower extreme on the condensation cavity is located to thermal insulation material, and semiconductor refrigeration piece and radiating part are located between the thermal insulation material, and the air pipe outside is located to the semiconductor refrigeration piece, and the semiconductor refrigeration piece outside is located to the radiating part, and the semiconductor refrigeration piece is connected with the control end.
4. The maintenance-free absorbent device of claim 1, wherein: the air passage is arranged along the edge of the base, and the bottom air hole is communicated with the air inlet and outlet assembly.
5. The maintenance-free absorbent device of claim 1, wherein: the air inlet and outlet assembly comprises an impeller cavity, a filtering cavity and a heating cavity from top to bottom, the shape of the impeller cavity is matched with that of an impeller, an air passage is arranged on the upper side and the lower side of the impeller cavity, the air passage on the lower side is communicated with the filtering cavity, filtering filler is arranged in the filtering cavity, vent holes are formed in the periphery of the filtering cavity, heating pieces are arranged in the heating cavity, and the heating pieces are connected with a control end.
6. The maintenance-free absorbent device of claim 1, wherein: the net-shaped heating component is a resistance net with a carbon fiber array structure.
7. The maintenance-free absorbent device of claim 5, wherein: the heating plate is a PTC constant temperature heating core, and the control end controls the PTC constant temperature heating core to prevent freezing according to the external environment temperature value and the dehydration control zone bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535838.8U CN212990872U (en) | 2020-07-29 | 2020-07-29 | Maintenance-free moisture absorption device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021535838.8U CN212990872U (en) | 2020-07-29 | 2020-07-29 | Maintenance-free moisture absorption device |
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| Publication Number | Publication Date |
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| CN212990872U true CN212990872U (en) | 2021-04-16 |
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| CN202021535838.8U Active CN212990872U (en) | 2020-07-29 | 2020-07-29 | Maintenance-free moisture absorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133530A (en) * | 2023-08-28 | 2023-11-28 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
-
2020
- 2020-07-29 CN CN202021535838.8U patent/CN212990872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133530A (en) * | 2023-08-28 | 2023-11-28 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
| CN117133530B (en) * | 2023-08-28 | 2024-04-09 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
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