Disclosure of Invention
The invention aims to provide a water vapor catching device convenient to regenerate, which is used for replacing the existing molecular sieve purification scheme, thereby solving various defects in the molecular sieve purification process.
The technical scheme adopted by the invention is as follows:
a moisture trap comprising:
the condensation cavity is used for capturing water vapor;
a gas inlet for inputting gas to be treated and a gas outlet for outputting the treated gas are formed in the shell of the condensation cavity;
a columnar condensation rod and a plurality of groups of water vapor capturing sheets are arranged in the condensation cavity;
the water vapor capturing sheet is arranged on the columnar condensing rod and is arranged in a multi-layer staggered mode, and gaps are reserved on each layer of water vapor capturing sheet.
Optionally, different sets of the vapor capture sheets have different mounting locations on the cylindrical condensate rod; and/or
The outer perimeter of the moisture capture sheets of different sets is different.
Optionally, the columnar condensation bars comprise at least one first condensation bar arranged close to the center of the condensation cavity, a plurality of second condensation bars arranged close to the inner wall of the condensation cavity, and a plurality of third condensation bars arranged between the first condensation bar and the second condensation bar;
the second condensation bar and the third condensation bar are respectively distributed in an annular shape by taking the first condensation bar as a center.
Optionally, the vapor capture sheet comprises a plurality of first capture sheets attached to the first condensate rod, a plurality of second capture sheets attached to the second condensate rod, and a plurality of third capture sheets attached to the third condensate rod.
Optionally, the first catching sheet is provided with a first through hole for matching with the first condensation bar;
the second catching sheet is provided with a second through hole matched with the second condensation rod and a first through hole used for accommodating the first condensation rod and the third condensation rod;
the third catching sheet is provided with a third through hole matched with the third condensation rod and a second through hole used for accommodating the first condensation rod.
Optionally, the moisture capture device further comprises: a regeneration device for melting and discharging the condensate on the vapor capture sheet to restore the vapor capture function of the condensation chamber;
the reproduction apparatus includes: a heating device, a discharge device and valves respectively arranged at the gas inlet and the gas outlet;
the valve is used for sealing the gas inlet and the gas outlet when regeneration operation is carried out;
the heating device is used for heating the columnar condensing rod or the condensing cavity during regeneration operation;
the drain is used for draining the melted condensate out of the condensation chamber when regeneration is carried out.
Optionally, the discharge means comprises:
the first discharge port is arranged at the bottom of the condensation cavity and communicated with the condensation cavity, and the suction pump is connected with the first discharge port; and/or
The second discharge port is arranged at the bottom end of the condensation cavity and communicated with the condensation cavity, and the support is connected with the bottom end of the condensation cavity.
Optionally, a gas homogenizing cavity is arranged inside the condensation cavity, and the gas homogenizing cavity is close to the gas inlet and is communicated with the condensation cavity;
the water vapor capturing piece is positioned outside the uniform air cavity.
Optionally, an air-homogenizing plate is arranged in the air-homogenizing cavity, and a plurality of uniformly distributed vent holes and fourth via holes matched with the columnar condensing rods are formed in the air-homogenizing plate.
Optionally, the vapor capture device further comprises a refrigerant pipeline connected with the columnar condensation rod, and a holding cavity for holding the refrigerant pipeline is further arranged inside the condensation cavity.
The invention forms the main part of the condensation cavity by the columnar condensation rod and the plurality of groups of water vapor catching sheets, and realizes the high-efficiency removal of water vapor by adopting the catching sheet structure arranged in staggered layers. Compared with the existing molecular sieve device, the condensation capture structure provided by the invention provides more water vapor contact area, and a large-volume molecular sieve device is not required to be built at a large cost; in addition, the invention adopts the condensation principle to capture the water vapor, so that the captured water vapor is converted into solid (such as ice crystal) through condensation, and therefore, the condensate can be melted only through heating operation in the regeneration process without consuming electronic gas and introducing or secondarily generating toxic byproducts. In conclusion, the invention can ensure the purification efficiency, facilitate the regeneration operation and realize the purposes of water vapor capture and pollutant emission reduction in the regeneration process.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention provides an embodiment of a water vapor capturing device, as shown in fig. 1, which mainly comprises a condensation chamber 1 for capturing water vapor, and a gas inlet a for inputting a gas to be processed is arranged on a housing of the condensation chamber 1, for example, the aforementioned electronic gas to be purified and processed by removing impurities can flow into the condensation chamber 1 through the gas inlet a; correspondingly, a gas outlet B for outputting the processed gas is further arranged on the shell of the condensation chamber 1, for example, the purified electronic gas subjected to impurity removal and purification processing in the condensation chamber 1 can be output to a subsequent process through the gas outlet B, so that online water vapor capture is realized, and the flow direction of the gas to be processed in the condensation chamber 1 is indicated by arrows in the figure. It should be noted that, the present invention abandons the existing molecular sieve purification device, and uses the condensation principle to capture water vapor, so that the interior of the condensation chamber 1 can be provided with a plurality of cylindrical condensation rods 2 and a plurality of groups of water vapor capture plates 3, wherein the water vapor capture plates 3 are mounted on the cylindrical condensation rods 2, and in order to increase the water vapor contact surface area and the water vapor circulation effect in the condensation chamber 1, the water vapor capture plates 3 can refer to the labyrinth structure shown in fig. 1, which is arranged in a layer-staggered manner and has gaps between each layer of water vapor capture plate, so that the gas to be processed can flow through each water vapor capture plate 3 in a roundabout manner, thereby improving the water vapor capture efficiency.
In addition, as can be understood by those skilled in the art, a heat transfer effect must exist between the cylindrical condensation rod 2 and the water vapor capturing sheet 3 during the condensation process, that is, the cylindrical condensation rod 2, which serves as a heat sink, can lower the temperature of the water vapor capturing sheet 3 connected thereto, and is low enough to condense the water vapor in the gas to be treated into a solid form, so as to capture the water vapor, and therefore, the material of the cylindrical condensation rod 2 and the water vapor capturing sheet 3 can be selected from a material with better heat conductivity, such as ceramic, graphite or more preferably, a stainless steel material with lower cost and convenient processing. Taking stainless steel as an example, the connection mode of the water vapor capturing sheet 3 and the columnar condensing rod 2 may further consider adopting welding for fixation, and certainly, the connection mode may also consider interference fit for fixedly connecting the two, and the invention is not limited thereto.
It should be further noted that, the columnar condensation rod 2 may be arranged in a manner that one end is connected to the bottom of the condensation chamber 1 as shown in fig. 1, and of course, a mechanism such as a bracket fixedly connected to the inner wall of the condensation chamber 1 may also be adopted to suspend the columnar condensation rod 2 in the condensation chamber 1; furthermore, the refrigeration scheme of the columnar condensation bars 2 can also be based on the prior art, for example, a refrigerant is used as a refrigerant and is input into each columnar condensation bar 2 through the refrigerant pipelines 4 connected in series or in parallel, and it should be noted that the refrigerant pipelines 4 are connected in series and the refrigerant inlet and outlet are located at the bottom end of the condensation chamber 1, but the actual operation is not limited to this arrangement. Then, the outer wall of the columnar condensing rod 2 and the water vapor capturing sheet 3 connected with the columnar condensing rod are quickly cooled to the required temperature, for example, a condensing agent with the temperature ranging from-200 ℃ to-400 ℃ is enough to ensure that more than 99.9% of water vapor is captured by the embodiment. Furthermore, in order to prevent the moisture in the air outside the casing of the condensation chamber 1 from freezing due to condensation and to reduce the heat exchange effect between the casing of the condensation chamber 1 and the outside, an insulating layer (not shown) may be disposed on the outer surface of the casing of the condensation chamber 1, for example, a piece of insulating cotton may be attached.
Regarding the aforesaid multiple groups of vapor capture plates 3 installed in a staggered manner to form a labyrinth structure, the actual operation can be realized in multiple ways, it should be noted that the arrangement of the vapor capture plates 3 in groups is to consider that the vapor capture plates 3 of different groups can be arranged into the sets of vapor capture plates 3 corresponding to the columnar condensation rods 2 in different arrangement positions according to the arrangement of the multiple columnar condensation rods 2 in the condensation chamber 1, and of course, the vapor capture plates 3 can be divided into groups according to different positions in the height direction of the same columnar condensation rod 2; in addition, the grouping arrangement may also be combined with different sizes (such as the outer perimeter, the outer diameter or the surface area) of the water vapor capturing sheets 3, and the water vapor capturing sheets 3 of different size groups may also be installed and connected according to the layout of the plurality of cylindrical condensation bars 2 or different heights of the same cylindrical condensation bar 2 as described above.
For example, a plurality of columnar condensation rods are combined in a specific position relationship, and a plurality of layers of water vapor capturing sheets are arranged on the same group of columnar condensation rods, namely, the water vapor capturing sheets in the same group are mutually related. Reference is made in detail to the present invention as embodied and broadly described in the following preferred embodiments, wherein the preferred embodiments are combined with the preferred embodiments of the cylindrical condensation bar 2 and the vapor capture sheet 3, and one or more of the preferred embodiments may be implemented independently or in combination in other embodiments by those skilled in the art. As shown in the top view of fig. 2, the cylindrical condensation bars 2 may specifically include at least one first condensation bar 21 disposed near the center of the condensation chamber 1, a plurality of second condensation bars 22 disposed near the inner wall of the condensation chamber 1, and a plurality of third condensation bars 23 disposed between the first condensation bar 21 and the second condensation bars 22, and the second condensation bars 22 and the third condensation bars 23 are respectively distributed in a ring shape with the first condensation bar 21 as the center, that is, a plurality of concentric rings are formed by the plurality of cylindrical condensation bars 2; it should be noted that, when the number of the first condensation bars 21 is only one, the position close to the center of the condensation chamber 1 is understood to be located at the center of the condensation chamber 1, and when the number of the first condensation bars 21 is more, it is understood that the plurality of first condensation bars 21 form a ring of condensation bars closest to the center; in addition, the illustration in the figures is only an example, and the actual operation is not limited to the circular ring layout, and other ring structures with other shapes can be adopted according to the actual needs; in addition, fig. 2 shows an arrangement structure of three layers of "inner, middle and outer" (similar to the arrangement of three groups of inner and middle condensation rods composed of the aforementioned positional relationship), that is, for the condensation rod ring positioned at the "middle layer" composed of the aforementioned third condensation rod 23, the embodiment provides only one layer of ring-shaped arrangement structure between the first condensation rod 21 and the second condensation rod 22, but in practice, the invention is not limited to the number of layers of ring-shaped arrangement, that is, the illustrated arrangement of three layers of "inner, middle and outer", so the condensation rod ring composed of the aforementioned third condensation rod 23 may include a plurality of concentric rings.
As shown in fig. 3 and 4, the vapor capturing sheet 3 may further include a plurality of first capturing sheets 31 connected to the first condensing rod 21, a plurality of second capturing sheets 32 connected to the second condensing rod 22, and a plurality of third capturing sheets 33 connected to the third condensing rod 23, and it can be known from the specific layout of the cylindrical condensing rod 2 in combination with the embodiment of fig. 1 that the outer circumferences of the first capturing sheet 31, the third capturing sheet 33, and the second capturing sheet 32 are sequentially increased, that is, the sizes of the three capturing sheets are sequentially increased from inside to outside, and it should be noted that the shape of the vapor capturing sheet 3 is not limited to the circular ring shape shown in the figures, and may be set to other shapes according to actual needs. The specific structure of the catching sheet provided by this embodiment can refer to the top view shown in fig. 5 to 7, and as shown in fig. 5, the first catching sheet 31 may be provided with first through holes 311 for cooperating with the first condensation bar 21, it should be noted that the number of the first through holes 311 is not limited to the illustrated one; as shown in fig. 6, the second catching piece 32 is provided with a second through hole 321 for matching with the second condensation bar 22 and a first through hole 322 for accommodating the first condensation bar 21 and the third condensation bar 23, and in this regard, as shown in fig. 3, since the second catching piece 32 is a catching piece connected to the outermost condensation bar, that is, the condensation bar close to the inner wall of the condensation chamber 1, the first through hole 322 is designed to ensure gas circulation and to take into account the layout of the first condensation bar 21 and the third condensation bar 23; the third catching piece 33 shown in fig. 7 is provided with a third through hole 331 for matching with the third condensation bar 23 and a second through hole 332 for accommodating the first condensation bar 21, and thus, as shown in fig. 4 (the dotted line of fig. 4 shows the first catching piece 31 being blocked), since the third catching piece 33 is a catching piece connected to the middle condensation bar, the second through hole 332 is designed to ensure gas circulation and to take the layout of the first condensation bar 21 into consideration. When the catching pieces are installed layer by layer, it is conceivable that the first catching pieces 31 and the third catching pieces 33 are installed in groups on the same horizontal plane, the second catching pieces 32 are installed in groups on the other horizontal plane, and so on, and the labyrinth structure shown in fig. 1 is alternately installed. However, the labyrinth structure is not limited to the above-described layered arrangement, and may be configured to ensure a uniform gap and a maximized water vapor contact area for each layer of the water vapor trapping sheet 3.
On the basis of the above-mentioned embodiment and the preferred embodiments thereof, the present invention further considers that when the water vapor captured by the water vapor capturing sheet 3 is condensed into ice crystals, and the ice crystals are accumulated more and more with the use of the water vapor capturing device, the water vapor capturing efficiency of the water vapor capturing device and the circulation of the gas to be processed are affected. Therefore, the regeneration process of the water vapor capture device is required, and it can be supplemented here that, regarding the timing of regeneration, the regeneration detection device can be considered to be arranged for monitoring, for example, a first pressure gauge can be arranged at the gas inlet a, a second pressure gauge can be arranged at the gas outlet B, and whether the ice crystals in the water vapor capture device are accumulated to the extent that the regeneration process is required can be determined by the pressure difference between the two pressure gauges and the gas resistance. It can be understood by those skilled in the art that the moisture capture device cannot perform the moisture capture operation during the regeneration operation, so that two moisture capture devices provided by the invention can be arranged, namely one is used and the other is used, when one of the moisture capture devices needs to be regenerated, the gas can be switched to the other moisture capture device to perform impurity removal and purification treatment, and the continuous production of the electronic gas cannot be influenced according to the design.
As for the regenerating device, the function thereof is to melt and discharge condensate (e.g., ice crystals) on the aforementioned moisture capturing sheet 3 to restore the moisture capturing function of the condensation chamber 1. Specifically, the regeneration apparatus may include a heating device, an exhaust device, and valves installed at the gas inlet a and the gas outlet B, respectively. The valve is used for sealing the gas inlet A and the gas outlet B during regeneration operation, so that the condensation cavity 1 forms a sealed cavity isolated from the outside; the heating device is used for heating the columnar condensing rod 2 during the regeneration operation or directly heating the whole condensing cavity 1, and the adopted heating mode can also be selected from various existing modes, such as introducing high-temperature liquid into the refrigerant pipeline 4 or heating the equipment and the device in an electric heating mode such as arranging a heating sleeve and the like, so that the condensate on the water vapor capturing piece 3 is fully melted; the draining means serves to drain the melted condensate to the outside of the condensation chamber 1 when regeneration is performed. To this end, the present invention provides two discharge device references:
firstly, at least one first discharge port communicated with the condensation cavity 1 and a suction pump connected with the first discharge port can be arranged at the bottom of the condensation cavity 1, and liquid melted and falling to the bottom of the condensation cavity 1 is actively pumped out of the cavity by an electric control suction pump;
secondly, as shown in fig. 8, a support 5 (or an equivalent module or a shell with a reserved space therein) for elevating and supporting the condensation chamber 1 is connected to the bottom end of the condensation chamber 1, and of course, the support 5 may be integrated with the bottom of the condensation chamber 1, that is, the condensation chamber 1 may be a casing structure with a transparent bottom, the upper part of the support 5 is a complete plate-shaped structure, the condensation chamber 1 of the casing structure is covered on the upper part of the support 5 and fixedly connected by a connecting member and a sealing member, and the two form a closed chamber; continuing the above, still set up at least one second discharge port 6 with condensation chamber 1 intercommunication in the bottom of condensation chamber 1, second discharge port 6 can vertically set up or set up in the bottom of condensation chamber 1 with certain angle slope, relies on the action of gravity to make the liquid after melting that falls to the chamber bottom discharge outside the chamber by second discharge port 6 promptly.
It can be further explained that the two emission measures can be independently arranged or jointly used to improve the emission efficiency; in addition, a discharge valve can be respectively arranged at the first discharge port or the second discharge port 6, so that the discharge ports are in a closed state during purification operation, and the electronic gas is prevented from being discharged out of the cavity; furthermore, since the water vapor captured from the toxic gas to be treated inevitably contains a small amount of contaminants in the melted condensate, it is considered in practice to connect the discharge port to a water treatment or contaminant recovery device to ensure zero contamination.
Fig. 8 is a comprehensive example of the above embodiments and preferred embodiments of the present invention, in which a gas homogenizing chamber 7 is further provided inside the condensing chamber 1, the gas homogenizing chamber 7 is close to the gas inlet a and is communicated with the condensing chamber 1, the vapor capture plate 3 is located outside the gas homogenizing chamber 7, and the gas homogenizing chamber 7 functions to enable the gas to be processed, which is input into the condensing chamber 1, to uniformly contact the vapor capture plate 3, and also can perform certain pre-cooling and buffering functions. In order to improve a better gas homogenizing effect, a gas homogenizing plate 8 can be arranged in the gas homogenizing cavity 7, as shown in fig. 8, a plurality of uniformly distributed vent holes 81 and fourth via holes (not shown in the figure) used for being matched with the columnar condensing rods 2 can be arranged on the gas homogenizing plate 8, that is, the gas homogenizing plate 8 is sleeved on each columnar condensing rod 2 and is divided into the gas homogenizing cavity 7, and after the gas to be treated enters the gas homogenizing cavity 7, the gas flows to the water vapor catching sheets 3 above through the uniformly distributed vent holes 81 on the gas homogenizing plate 8.
Based on the above-mentioned technical scheme that adopts the refrigerant refrigeration, in the embodiment of fig. 8, the vapor capture device not only includes the refrigerant pipeline 4 connected with the columnar condensation rod 2, and the inside of the condensation cavity 1 is further provided with the holding cavity 9 for holding the refrigerant pipeline 4, preferably, the holding cavity 9 can be contained in the interior of the gas-homogenizing cavity 7 and isolated from the gas-homogenizing cavity 7, and one end of the columnar condensation rod 2 can be connected to the holding cavity 9. The purpose of the accommodating cavity 9 is to take the temperature of the refrigerant, which is usually low to ensure a good condensation capturing effect, into consideration that the refrigerant is very easy to freeze ice crystals on the surface of the pipe wall if exposed to the outside, so as to take an isolated way for protection. Finally, as shown in fig. 8, if the refrigerant pipeline 4 is disposed in the accommodating chamber 9, a discharge port (e.g., the second discharge port 6) may be disposed at the bottom of the accommodating chamber 9, so that the liquid in the accommodating chamber 9 can be discharged out of the chamber during the regeneration operation.
In summary, the main components of the condensation cavity are formed by the plurality of columnar condensation rods and the plurality of water vapor capturing pieces, and the water vapor is efficiently removed by adopting the capturing piece structure arranged in the staggered layer. Compared with the existing molecular sieve device, the condensation capture structure provided by the invention provides more water vapor contact area, and a large-volume molecular sieve device is not required to be built at a large cost; in addition, the invention adopts the condensation principle to capture the water vapor, so that the captured water vapor is converted into solid (such as ice crystal) through condensation, and therefore, the condensate can be melted only through heating operation in the regeneration process without consuming electronic gas or introducing or secondarily generating toxic byproducts. Therefore, the invention can ensure the purification efficiency, facilitate the regeneration operation and realize the purposes of water vapor capture and pollutant emission reduction in the regeneration process.
The structure, features and effects of the present invention have been described in detail with reference to the embodiments shown in the drawings, but the above embodiments are merely preferred embodiments of the present invention, and it should be understood that technical features related to the above embodiments and preferred modes thereof can be reasonably combined and configured into various equivalent schemes by those skilled in the art without departing from and changing the design idea and technical effects of the present invention; therefore, the invention is not limited to the embodiments shown in the drawings, and all the modifications and equivalent embodiments that can be made according to the idea of the invention are within the scope of the invention as long as they are not beyond the spirit of the description and the drawings.