CN213211896U - Heating dehumidification subassembly and respirator - Google Patents
Heating dehumidification subassembly and respirator Download PDFInfo
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- CN213211896U CN213211896U CN202022109984.0U CN202022109984U CN213211896U CN 213211896 U CN213211896 U CN 213211896U CN 202022109984 U CN202022109984 U CN 202022109984U CN 213211896 U CN213211896 U CN 213211896U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 139
- 238000007791 dehumidification Methods 0.000 title claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 173
- 239000000741 silica gel Substances 0.000 claims abstract description 173
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 173
- 239000011229 interlayer Substances 0.000 claims abstract description 28
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 18
- 238000001035 drying Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002274 desiccant Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000000499 gel Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a heating and dehumidifying component and a respirator, belonging to the technical field of transformers, wherein the heating and dehumidifying component comprises a supporting seat, a first heating element and a second heating element; the supporting seat is used for being connected into a silica gel chamber of the respirator and provided with a net-shaped interlayer positioned in the middle of the silica gel chamber, the top surface of the net-shaped interlayer is used for enclosing a first cavity with the inner wall of the silica gel chamber, and the bottom surface of the net-shaped interlayer is used for enclosing a second cavity with the inner wall of the silica gel chamber; the first heating element is arranged on the supporting seat, is positioned in the first cavity, is used for heating the silica gel in the first cavity and is electrically connected with the controller; the second heating member is arranged on the supporting seat and is positioned in the second cavity for heating silica gel in the second cavity and electrically connecting the second heating member with the controller. The utility model provides a heating dehumidification subassembly, silica gel are heated evenly, and heating dehumidification is effectual. The utility model also provides a respirator that has adopted above-mentioned heating dehumidification subassembly.
Description
Technical Field
The utility model belongs to the technical field of the transformer, more specifically say, relate to a heating dehumidification subassembly and respirator.
Background
The respirator is a safety protection device arranged at the tail end of a pipeline for communicating an oil conservator of the transformer with air, when the temperature of oil in the transformer rises and expands, redundant air in the transformer can be exhaled, when the temperature of the oil of the transformer decreases and contracts, air can be inhaled from the outside, when the air is inhaled into the outside, in order to avoid the phenomenon that oil in the transformer is damped and deteriorated, moisture in the air needs to be absorbed through silica gel in the respirator, and therefore the inhaled air of the transformer is ensured to be dry air.
The main component of silica gel filled in the respirator is activated alumina, which belongs to a drying agent, the color of the silica gel is blue under a normal drying state, when the silica gel in the respirator becomes damp due to long-term moisture absorption, the color of the silica gel can change (becomes red), the water absorption of the silica gel after being damped and turned red is reduced, in order to avoid that a transformer sucks damp air, after the silica gel is found to turn red by an operation and maintenance worker in a tour inspection process, the silica gel is heated by a heating assembly arranged in the respirator, so that the moisture in the silica gel is evaporated and is discharged along with redundant air in an exhalation process of the transformer, and the silica gel is recovered to be continuously used, but because the amount of the silica gel filled in the respirator is large, the heat transfer effect of the silica gel is poor, the heating of the silica gel is uneven, the temperature difference of the silica gel at each position is large, and particularly, the heated silica gel far away from the heating assembly is, therefore, the silica gel cannot recover the normal water absorption capacity, and the dehumidifying effect of the respirator on air is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heating dehumidification subassembly and respirator, it is poor to aim at solving the heating element among the prior art and carry out the effect of drying with heat to silica gel, and then influences the problem of silica gel water absorption performance.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a heating and dehumidifying assembly comprising:
the supporting seat is used for being connected into a silica gel chamber of the respirator and is provided with a net-shaped interlayer positioned in the middle of the silica gel chamber, the top surface of the net-shaped interlayer is used for enclosing a first cavity with the inner wall of the silica gel chamber, and the bottom surface of the net-shaped interlayer is used for enclosing a second cavity with the inner wall of the silica gel chamber;
the first heating element is arranged on the supporting seat, is positioned in the first cavity, is used for heating the silica gel in the first cavity, and is electrically connected with the controller;
the second heating member is arranged on the supporting seat and located in the second cavity, and is used for heating silica gel in the second cavity and electrically connected with the controller.
As another embodiment of the present application, a first humidity sensor located in the first chamber is disposed on the supporting seat, and the first humidity sensor is used for being electrically connected with the controller; the supporting seat is further provided with a second humidity sensor located in the second chamber, and the second humidity sensor is used for being electrically connected with the controller.
As another embodiment of the application, a first temperature sensor is arranged on the supporting seat and positioned in the first cavity, and the first temperature sensor is used for being electrically connected with the controller; the supporting seat is further provided with a second temperature sensor located in the second cavity, and the second temperature sensor is used for being electrically connected with the controller.
As another embodiment of the application, a first insulating and heat insulating net positioned in the first cavity and a second insulating and heat insulating net positioned in the second cavity are arranged on the supporting seat;
the first heating element is arranged on the upper net surface of the first insulating and heat-insulating net; the second heating member is arranged on the upper net surface of the second insulating and heat-insulating net.
As another embodiment of the present application, the first heating element includes a plurality of first heating blocks spaced around a central circumference of the first insulating and heat insulating net, the plurality of first heating blocks being respectively configured to be electrically connected to the controller; the second heating element comprises a plurality of second heating blocks which are distributed at intervals around the central circumference of the second insulating and heat-insulating net, and the plurality of second heating blocks are respectively used for being electrically connected with the controller.
As another embodiment of the present application, a first metal film filter screen is disposed on a lower screen surface of the first insulating and heat insulating screen, and a peripheral wall of the first metal film filter screen is used for being in sealing fit with an inner peripheral wall of the silicone chamber; and the lower net surface of the second insulating and heat insulating net is provided with a second metal film filter net, and the peripheral wall of the second metal film filter net is used for being in sealing fit with the inner peripheral wall of the silica gel chamber.
As another embodiment of the application, a partition plate is arranged in the first cavity at a position close to the inner top wall of the silica gel chamber, and the partition plate is used for blocking silica gel from entering a breathing passage of the respirator.
As another embodiment of the present application, the partition plate has an inverted cone shape, or a bowl shape, or a dish shape.
As another embodiment of the present application, the heating and dehumidifying assembly further comprises an exhaust fan, wherein the exhaust fan is arranged in the breathing passage of the respirator and is electrically connected with the controller.
The utility model provides a heating dehumidification subassembly's beneficial effect lies in: compared with the prior art, the heating and dehumidifying component of the utility model divides the silica gel chamber of the respirator into an upper chamber and a lower chamber (the upper chamber is a first chamber, the lower chamber is a second chamber) through the reticular interlayer arranged on the supporting seat, the reticular interlayer can ensure smooth air circulation between the first chamber and the second chamber, when the transformer inhales air, the outside air enters the transformer after passing through the first chamber and the second chamber for twice dehumidification, when the silica gel in the first chamber and/or the second chamber is damped due to water absorption, the first heating element and/or the second heating element is opened through the controller, the silica gel in the first chamber and/or the silica gel in the second chamber are heated and dried, because the reticular interlayer divides the silica gel chamber into the upper chamber and the lower chamber, and the heating element is arranged in each chamber, thereby reducing the distance between the silica gel and the heat source, ensure that whole silica gel can be relatively even be heated to improve the heating effect to silica gel, make the inside moisture of silica gel be heated the evaporation fast and discharge the silica gel outdoor in the lump along with the expiration process of transformer, resume the water-absorbing capacity of silica gel, thereby guarantee that the respirator possesses good dehumidification effect, ensure transformer operation safety and stability.
The utility model also provides a respirator, including being used for installing at the terminal respirator body of transformer conservator vent pipe, and locating this internal above-mentioned heating dehumidification subassembly of respirator.
The utility model provides a respirator, adopted above-mentioned heating dehumidification subassembly, through locating the silica gel room of respirator and dividing into two upper and lower cavities (the top is first cavity, the below is the second cavity) on the supporting seat, the air circulation that the netted interlayer can guarantee between first cavity and the second cavity is smooth, when the transformer breathes in, outside air gets into the transformer after the twice dehumidification of silica gel in first cavity, the second cavity in proper order, after silica gel in first cavity and/or the second cavity caused the dehumidification ability to descend because the moisture absorption of absorbing water, open first heating member and/or second heating member through the controller, silica gel in first cavity and/or the silica gel in the second cavity carry out the heat drying, because the netted interlayer divides the silica gel room into two upper and lower cavities, and all set up heating member in every cavity, thereby reduced the distance between silica gel and the heat source, ensured that whole silica gel can be relatively even be heated to improve the heating effect to silica gel, make the inside moisture of silica gel be heated the evaporation fast and discharge the silica gel outdoor in the lump along with the expiration process of transformer, resume the water-absorbing capacity of silica gel, thereby guarantee that the respirator possesses good dehumidification effect, ensure transformer operation safety and stability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heating and dehumidifying assembly according to an embodiment of the present invention;
fig. 2 is a circuit connection block diagram of the heating and dehumidifying component provided in the embodiment of the present invention.
In the figure: 100. a supporting seat; 101. a mesh interlayer; 102. a first insulating and heat insulating mesh; 103. a second insulating and heat insulating mesh; 104. a first metal film filter screen; 105. a second metal film filter screen; 200. a silica gel chamber; 201. a first chamber; 202. a second chamber; 301. a first heating member; 302. a second heating member; 401. a first humidity sensor; 402. a second humidity sensor; 501. a first temperature sensor; 502. a second temperature sensor; 600. a partition plate; 700. an exhaust fan; 800. a controller; 900. a breathing passage.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, the heating and dehumidifying assembly of the present invention will now be described. The heating and dehumidifying assembly includes:
the supporting seat 100 is used for being connected into a silica gel chamber 200 of the respirator and is provided with a net-shaped interlayer 101 positioned in the middle of the silica gel chamber 200, the top surface of the net-shaped interlayer 101 and the inner wall of the silica gel chamber 200 form a first cavity 201 in a surrounding mode, and the bottom surface of the net-shaped interlayer 101 and the inner wall of the silica gel chamber 200 form a second cavity 202 in a surrounding mode;
the first heating element 301 is arranged on the support base 100, is positioned in the first chamber 201, is used for heating the silica gel in the first chamber 201, and is electrically connected with the controller 800;
the second heating member 302 is disposed on the supporting base 100, located in the second chamber 202, and used for heating the silicone gel in the second chamber 202, and electrically connected to the controller 800.
It should be noted that, the silica gel used in the respirator is usually allochroic silica gel, which is used as a drying agent in the form of powder or small particles, the main component of the allochroic silica gel is activated alumina, the color of the allochroic silica gel is blue in a dry state, when the drying agent absorbs moisture and gradually becomes damp, the color changes accordingly, when the drying agent changes into red, the moisture absorbed by the drying agent is too much, the drying agent is seriously affected with damp, at this time, the allochroic silica gel loses the moisture absorption capability, the maintenance personnel usually judge the dehumidification performance of the respirator according to the color of the silica gel, and in order to ensure that dry air is sucked into the transformer, the current maintenance personnel usually replace the silica gel with the color changed into red in time.
In addition, it should be understood that the breathing passage 900 is provided for inhaling the external air or exhausting the internal air, and since the air is dried by the silica gel, the breathing passage 900 is necessarily communicated with the silica gel chamber 200.
The utility model provides a heating dehumidification subassembly's theory of operation does:
the mesh-shaped interlayer 101 divides the silica gel chamber 200 into an upper chamber and a lower chamber, wherein the chamber above the mesh-shaped interlayer 101 is a first chamber 201, the chamber below the mesh-shaped interlayer 101 is a second chamber 202, the first chamber 201 and the second chamber 202 are both filled with silica gel (particles), the filling amount of the silica gel in the first chamber 201 is preferably eighty percent of the volume of the first chamber 201, and the filling amount of the silica gel in the second chamber 202 is also preferably eighty percent of the volume of the second chamber 202, it should be understood that the silica gel cannot pass through meshes distributed on the mesh-shaped interlayer 101, and gas can smoothly pass through the mesh-shaped interlayer 101 to enter the second chamber 202 from the first chamber 201 or enter the first chamber 201 from the second chamber 202;
it should be understood that since the outside air enters the silica gel chamber 200 through the top end of the respirator, and then enters the transformer through the bottom end of the respirator after the silica gel is dried, therefore, the contact sequence of the silica gel in the first chamber 201 and the silica gel in the second chamber 202 with the humid air is different (the external air firstly passes through the first chamber 201, the silica gel in the first chamber 201 performs the first drying treatment on the humid air, so that the humid air is directly changed into the dry air or at least the moisture content of the humid air is reduced, then the air enters the second chamber 202, the air completely changes into the dry air after the second drying treatment is performed on the silica gel in the second chamber 202, and finally enters the transformer), the silica gel in the first chamber 201 contacts the external air firstly, the silicone gel in the first chamber 201 tends to be more heavily wetted than the silicone gel in the second chamber 202.
When a maintenance person finds that the silica gel in the first chamber 201 and/or the second chamber 202 is affected with moisture and changes color (the color is changed from blue in a normal state to red after being affected with moisture), the controller 800 (the controller 800 is a controller 800 of a transformer, and only a corresponding program needs to be implanted or a switch needs to be added) turns on the first heating member 301 and/or the second heating member 302, the first heating member 301 heats the silica gel in the first chamber 201, the second heating member 302 heats the silica gel in the second chamber 202, and the maintenance person can judge the moisture degree according to the color of the silica gel in each chamber, so that the heating time of the first heating member 301 and the second heating member 302 is flexibly controlled, and finally the color of the silica gel in the first chamber 201 and the color of the silica gel in the second chamber 202 are changed into blue.
Because the silica gel of first cavity 201 or the interior intussuseption of second cavity 202 compares in the whole circumstances of filling in single space (silica gel room 200 is a whole space) of silica gel, the silica gel filling volume is little in the single cavity, and the silica gel distance in every cavity is located the distance of its inside heating member nearer, consequently, the heating member is faster to the rate of heating of the silica gel in the corresponding cavity, silica gel drying effect is better, can avoid because of the silica gel is far away from the heat source and can't effectively be heated the dry condition, carry out the pertinence heat drying according to the silica gel moisture degree in the different cavities, thereby make silica gel resume the water absorption ability fast, thereby the air that gets into in the transformer behind the respirator is drying gas, avoid transformer inside fluid to be moistened rotten, ensure that the transformer can work stably for a long time.
Compared with the prior art, the heating dehumidification component provided by the utility model, the silica gel chamber 200 of the respirator is divided into an upper cavity and a lower cavity (the upper cavity 201 is a first cavity 201, the lower cavity 202 is a second cavity 202) by the reticular interlayer 101 arranged on the supporting seat 100, the reticular interlayer 101 can ensure smooth air circulation between the first cavity 201 and the second cavity 202, when the transformer inhales air, the outside air enters the transformer after passing through the first cavity 201 and the silica gel in the second cavity 202 for twice dehumidification in sequence, when the silica gel in the first cavity 201 and/or the second cavity 202 is damped due to water absorption, the first heating part 301 and/or the second heating part 302 are opened through the controller 800, the silica gel in the first cavity 201 and/or the silica gel in the second cavity 202 are heated and dried, because the reticular interlayer 101 divides the silica gel chamber 200 into the upper cavity and the lower cavity, and all set up the heating member in every cavity to reduce the distance between silica gel and the heat source, ensured that whole silica gel can be relatively even be heated, thereby improve the heating effect to silica gel, make the inside moisture of silica gel be heated the evaporation fast and along with the exhaling process of transformer outside the silica gel room 200 in the lump, resume the water-absorbing capacity of silica gel, thereby guarantee that the respirator possesses good dehumidification effect, ensure transformer operation safety and stability.
As a specific embodiment of the heating and dehumidifying module and the respirator provided by the present invention, please refer to fig. 1 to 2, a first humidity sensor 401 located in the first chamber 201 is disposed on the supporting seat 100, and the first humidity sensor 401 is used for being electrically connected to the controller 800; the support base 100 is further provided with a second humidity sensor 402 located in the second chamber 202, and the second humidity sensor 402 is used for electrically connecting with the controller 800.
Because the color of the silica gel is judged by a maintenance and inspection person, the reliability of judging the moisture condition of the silica gel is poor, the silica gel in the respirator is inconvenient to watch, the upper cover of the respirator is usually required to be disassembled for observation and judgment, and if the maintenance and inspection person is neglected or overhauled for a long time, the silica gel cannot be timely treated after being wetted, so that moisture gas is absorbed in the transformer, and the transformer oil is wetted and deteriorated, the moisture condition of the silica gel in the first cavity 201 is detected in real time by arranging the first humidity sensor 401 in the first cavity 201, the moisture condition of the silica gel in the second cavity 202 is detected in real time by arranging the second humidity sensor 402 in the second cavity 202, and when the humidity in the first cavity 201 and/or the second cavity 202 is detected by the first humidity sensor 401 and/or the second humidity sensor 402 to exceed the set upper limit value, the controller 800 correspondingly starts the first heating element 301 and/or the second heating element 302 to dehumidify the silica gel, and after the humidity drops below the set lower limit value, the controller 800 closes the first heating element 301 and/or the second heating element 302, so that the situation that the silica gel is seriously wetted and cannot effectively dry air to enable the humid air to enter the transformer can be avoided, and the situation that the silica gel is excessively heated to damage the service life of the silica gel can be avoided.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 2, a first temperature sensor 501 located in the first chamber 201 is disposed on the supporting seat 100, and the first temperature sensor 501 is used for electrically connecting with the controller 800; the support base 100 is further provided with a second temperature sensor 502 located in the second chamber 202, and the second temperature sensor 502 is used for electrically connecting with the controller 800.
Because the moisture absorbed in the silica gel is converted into steam and discharged to the outside through the breathing channel 900 of the respirator, the silica gel can be dried and dehumidified only when the heating temperature of the silica gel exceeds one hundred degrees centigrade, when the first heating element 301 and/or the second heating element 302 is started to heat and dehumidify the silica gel in the first chamber 201 and/or the second chamber 202, the temperature of the silica gel is detected through the first temperature sensor 501 and/or the second temperature sensor 502, when the temperature of the silica gel in the first chamber 201 and/or the second chamber 202 is detected to exceed one hundred degrees centigrade (in order to ensure the moisture vaporization speed, the temperature of the silica gel is usually heated to about one hundred and ten degrees centigrade), the first heating element 301 and/or the second heating element 302 is closed through the controller 800, and after the temperature of the silica gel is lower than the heat absorption temperature due to the moisture absorbed in the silica gel, the controller 800 can correspondingly turn on the first heating member 301 and/or the second heating member 302, so as to avoid the damage to the service life of the silica gel caused by the overhigh temperature of the silica gel due to continuous heating, and save electric energy.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a first insulating net 102 located in a first chamber 201 and a second insulating net 103 located in a second chamber 202 are disposed on a supporting seat 100; wherein, the first heating element 301 is arranged on the upper net surface of the first insulating and heat insulating net 102; the second heating member 302 is provided on the upper screen surface of the second insulating and heat insulating screen 103.
The first insulating and heat insulating net 102 and the second insulating and heat insulating net 103 are used as net structures, air circulation in the first cavity 201 and the second cavity 202 is not affected, meanwhile, heat transfer from the first heating element 301 and the second heating element 302 to the supporting seat 100 in the working process is avoided by utilizing the heat insulating effect of the first insulating and heat insulating net 102 and the second insulating and heat insulating net 103, and therefore heat transfer to the respirator shell through the supporting seat 100 is avoided.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the first heating element 301 includes a plurality of first heating blocks distributed at intervals around the central circumference of the first insulating and heat-insulating net 102, and the plurality of first heating blocks are respectively used for being electrically connected with the controller 800; the second heating element 302 includes a plurality of second heating blocks spaced around a central circumference of the second insulating and heat insulating net 103, and the plurality of second heating blocks are respectively used for electrical connection with the controller 800.
The first heating elements 301 are formed by a plurality of first heating blocks distributed at intervals, and air entering the first chamber 201 can pass through gaps among the first heating blocks, so that the first heating elements 301 are prevented from influencing the normal circulation of the air in the first chamber 201; the second heating elements 302 are formed by a plurality of second heating blocks which are distributed at intervals, and air entering the second chamber 202 can pass through gaps among the second heating blocks, so that the second heating elements 302 are prevented from influencing the normal circulation of the air in the second chamber 202; in addition, each first heating block can heat the silica gel of different positions in the first cavity 201 respectively, and each second heating block can heat the silica gel of different positions in the second cavity 202 respectively to ensure that silica gel can thermally equivalent, improve the heating drying efficiency to silica gel, thereby guarantee the normal operating of respirator.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a first metal film filter 104 is disposed on a lower screen surface of the first insulating and heat insulating screen 102, and a peripheral wall of the first metal film filter 104 is used for being sealed and attached to an inner peripheral wall of the silica gel chamber 200; the lower mesh surface of the second insulating and heat insulating mesh 103 is provided with a second metal film filter screen 105, and the peripheral wall of the second metal film filter screen 105 is used for being in sealing fit with the inner peripheral wall of the silica gel chamber 200.
The membrane filtration is mainly used for removing small particles, and can be divided into microfiltration, ultrafiltration, nanofiltration and reverse osmosis according to the filtration precision, and the metal membrane filter screen is used as one of the membrane filtration, so that dust particles in gas can be filtered out without influencing the passing of the gas. The air entering the first cavity 201 and the air entering the second cavity 202 are filtered by the first metal film filter screen 104 and the second metal film filter screen 105, so that dust particles in the outside air are prevented from entering the transformer, and the normal and stable operation of the transformer can be guaranteed.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a partition 600 is disposed in the first chamber 201 at a position close to the inner top wall of the silica gel chamber 200, and the partition 600 is used for blocking the silica gel from entering the breathing channel 900 of the respirator.
Because the breathing passageway 900 of respirator is located the interior roof of silica gel chamber 200, when first heating member 301 heats the silica gel in to first cavity 201, moisture in the silica gel is heated and is required to discharge through breathing passageway 900 after the vaporization, shelter from the entry position of breathing passageway 900 through setting up baffle 600, make gas reentrant breathing passageway 900 behind the baffle 600, thereby avoid the silica gel granule to be directly brought into in breathing passageway 900 by gas, prevent on the one hand that breathing passageway 900 blocks up, on the other hand avoids silica gel to cause the waste along with gas exhaust silica gel chamber 200 outward.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the partition plate 600 is in an inverted cone shape, a bowl shape or a dish shape. That is to say, the border of baffle 600 upwards warps, and the border of warping can play the water conservancy diversion effect to gas, and the moisture that makes vaporization in the silica gel discharges smoothly, can promote the heating drying effect of silica gel.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 2, the heating and dehumidifying assembly further includes an exhaust fan 700, and the exhaust fan 700 is disposed in the breathing passage 900 of the respirator and electrically connected to the controller 800.
The utility model also provides a respirator. Referring to fig. 1 to 2, the breather includes a breather body for being mounted at an end of a transformer conservator vent pipe, and the above-mentioned heating and dehumidifying assembly disposed in the breather body.
The utility model provides a respirator, adopted above-mentioned heating dehumidification subassembly, through locating the silica gel chamber 200 of respirator on supporting seat 100 and cut apart into two upper and lower cavities (the top is first cavity 201, the below is second cavity 202), the air circulation between first cavity 201 and the second cavity 202 can be guaranteed to netted interlayer 101 is smooth, when the transformer breathes in, outside air gets into the transformer after passing through twice dehumidification of silica gel in first cavity 201, the second cavity 202 in proper order, after silica gel in first cavity 201 and/or the second cavity 202 caused the dehumidification ability to descend because of absorbing water and weing, open first heating member 301 and/or second heating member 302 through controller 800, heat and dry silica gel in the first cavity 201 and/or the second cavity 202, because netted interlayer 101 has divided silica gel chamber 200 into two upper and lower cavities, and all set up the heating member in every cavity to reduce the distance between silica gel and the heat source, ensured that whole silica gel can be relatively even be heated, thereby improve the heating effect to silica gel, make the inside moisture of silica gel be heated the evaporation fast and along with the exhaling process of transformer outside the silica gel room 200 in the lump, resume the water-absorbing capacity of silica gel, thereby guarantee that the respirator possesses good dehumidification effect, ensure transformer operation safety and stability.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Heating dehumidification subassembly, its characterized in that includes:
the supporting seat is connected in a silica gel chamber of the respirator and provided with a net-shaped interlayer positioned in the middle of the silica gel chamber, the top surface of the net-shaped interlayer is used for enclosing a first cavity with the inner wall of the silica gel chamber, and the bottom surface of the net-shaped interlayer is used for enclosing a second cavity with the inner wall of the silica gel chamber;
the first heating element is arranged on the supporting seat, is positioned in the first cavity, is used for heating the silica gel in the first cavity, and is electrically connected with the controller;
the second heating member is located on the supporting seat, and is located in the second cavity, be used for the heating silica gel in the second cavity, and be used for with the controller electricity is connected.
2. The heating and dehumidifying module of claim 1 wherein the support base is provided with a first humidity sensor located in the first chamber, the first humidity sensor being adapted to be electrically connected to the controller; the supporting seat is further provided with a second humidity sensor located in the second chamber, and the second humidity sensor is used for being electrically connected with the controller.
3. The heating and dehumidifying module of claim 2 wherein the support base is provided with a first temperature sensor located in the first chamber, the first temperature sensor being adapted to be electrically connected to the controller; and the supporting seat is also provided with a second temperature sensor positioned in the second chamber, and the second temperature sensor is used for being electrically connected with the controller.
4. The heating and dehumidifying module of claim 1 wherein the support base is provided with a first insulating mesh positioned in the first chamber and a second insulating mesh positioned in the second chamber;
the first heating element is arranged on the upper net surface of the first insulating and heat-insulating net; the second heating member is arranged on the upper net surface of the second insulating and heat-insulating net.
5. The heating and dehumidifying assembly of claim 4 wherein the first heating element comprises a plurality of first heating blocks spaced around a central circumference of the first insulating and heat insulating web, the plurality of first heating blocks being adapted to be electrically connected to the controller, respectively; the second heating element comprises a plurality of second heating blocks which are distributed at intervals around the central circumference of the second insulating and heat-insulating net, and the plurality of second heating blocks are respectively used for being electrically connected with the controller.
6. The heating and dehumidifying module of claim 4 wherein the lower mesh surface of the first insulating and heat insulating mesh is provided with a first metal film filter, and the peripheral wall of the first metal film filter is in sealing fit with the inner peripheral wall of the silica gel chamber; and the lower net surface of the second insulating and heat insulating net is provided with a second metal film filter net, and the peripheral wall of the second metal film filter net is used for being in sealing fit with the inner peripheral wall of the silica gel chamber.
7. The heating and dehumidifying assembly of claim 1 wherein a partition is provided in the first chamber adjacent to the inner top wall of the silica gel chamber, the partition being configured to block silica gel from entering the breathing passage of the respirator.
8. The heating and dehumidification assembly of claim 7, wherein the baffle is inverted cone shaped or bowl shaped or dish shaped.
9. The heating and dehumidifying module of any one of claims 1-8 further comprising an exhaust fan for being disposed in a breathing passage of the respirator and for being electrically connected to the controller.
10. A respirator comprising a respirator body for mounting at the end of a transformer conservator vent line, and a heating and dehumidifying module as claimed in any one of claims 1 to 9 provided in the respirator body.
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| CN202022109984.0U CN213211896U (en) | 2020-09-23 | 2020-09-23 | Heating dehumidification subassembly and respirator |
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| CN202022109984.0U CN213211896U (en) | 2020-09-23 | 2020-09-23 | Heating dehumidification subassembly and respirator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115183547A (en) * | 2022-09-14 | 2022-10-14 | 徐州市海涛制冷设备有限公司 | Air energy dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115183547A (en) * | 2022-09-14 | 2022-10-14 | 徐州市海涛制冷设备有限公司 | Air energy dryer |
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