JPS6222646B2 - - Google Patents
Info
- Publication number
- JPS6222646B2 JPS6222646B2 JP52065327A JP6532777A JPS6222646B2 JP S6222646 B2 JPS6222646 B2 JP S6222646B2 JP 52065327 A JP52065327 A JP 52065327A JP 6532777 A JP6532777 A JP 6532777A JP S6222646 B2 JPS6222646 B2 JP S6222646B2
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent
- adsorption
- relative humidity
- filled
- activated alumina
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
- Drying Of Gases (AREA)
Description
【発明の詳細な説明】
空気を乾燥する非加熱式の除湿装置として従来
吸着剤を充填した２基の吸着塔を並設し、一方の
吸着塔の下底から被処理空気を流入して塔内の吸
着剤の間を上方へと流通する間に除湿を行うと共
に、他方の吸着塔は既に吸湿している吸着剤に対
し上方より乾燥空気の一部を挿入して再生を行う
よう複式としたものが使用され、一方の吸着塔内
の吸着剤の吸着破過時間以前に他方の吸着剤の再
生を終えた吸着塔へと被処理空気の流入を切換え
て連続的に作動するようになつている。然してこ
の方式の吸着塔へ充填する吸着剤としては塔内の
全体に極性吸着剤であるシリカゲル、活性アルミ
ナ、合成ゼオライト等が単品で充填されている。
これらの吸着剤はその吸着容量の相対湿度に対し
て変化する態様がそれぞれ異なつており、第１図
に示すように活性アルミナの場合には相対湿度の
増大と共に吸着容量（吸着剤１Kgで吸着する水分
のKg量）もほぼ比例して増大するが、合成ゼオラ
イトの場合には、相対湿度の小さいとき吸着容量
は相対湿度の僅かの増大で急速に増大するが或程
度以上に相対湿度が大きくなつたのちは吸着容量
は殆んど変化がない特性がある。Detailed Description of the Invention: Conventionally, as a non-heating type dehumidification device for drying air, two adsorption towers filled with adsorbent are installed in parallel, and the air to be treated is introduced from the bottom of one of the adsorption towers. The adsorption tower is designed to dehumidify water while flowing upward between the adsorbents in the adsorption tower, while the other adsorption tower regenerates the adsorbents that have already absorbed moisture by injecting some dry air from above. It is now possible to operate continuously by switching the inflow of the air to be treated to the adsorption tower that has finished regenerating the adsorbent in the other adsorption tower before the adsorption breakthrough time of the adsorbent in one adsorption tower. ing. However, as the adsorbent packed into the adsorption tower of this type, polar adsorbents such as silica gel, activated alumina, and synthetic zeolite are individually packed throughout the tower.
These adsorbents differ in the manner in which their adsorption capacity changes with relative humidity, and as shown in Figure 1, in the case of activated alumina, the adsorption capacity (adsorption capacity per 1 kg of adsorbent) increases as relative humidity increases. In the case of synthetic zeolite, when the relative humidity is low, the adsorption capacity increases rapidly with a slight increase in relative humidity, but as the relative humidity increases beyond a certain point. After that, the adsorption capacity has a characteristic that there is almost no change.
本発明はこのような吸着剤の個々の特性を利用
して各吸着塔に充填する吸着剤を２種又は２種以
上を積層することにより破過時間を延長せしめる
ことに特徴を有するものである。吸着塔の下方か
らの空気の流入を切換える時期は吸着剤の吸着破
過時間前であるから吸着塔の下部の吸着剤は相対
対湿度100％の空気に接するのに対し吸着塔の上
部の吸着剤は非常に低い相対湿度の空気に接して
いることになる。従つて、吸着塔内の下部には相
対湿度の高いところで吸着容量の大きい吸着剤
（例えば活性アルミナ）を充填し、吸着塔の上部
には相対湿度の低いところで吸着容量の大きい吸
着剤（例えば合成ゼオライト）を充填し、塔内で
両吸着剤を適量の比率で積層して使用すると、い
ずれか一方の吸着剤のみを単品で使用するのに比
較して吸着効率が著しく良好であり、吸着剤の充
填総量を少なくして経済的に使用することも可能
である。 The present invention is characterized in that the breakthrough time is extended by utilizing the individual characteristics of such adsorbents and stacking two or more types of adsorbents to be filled in each adsorption tower. . The timing to switch the inflow of air from the bottom of the adsorption tower is before the adsorption breakthrough time of the adsorbent, so the adsorbent at the bottom of the adsorption tower is in contact with air with a relative humidity of 100%, whereas the adsorption at the top of the adsorption tower is The agent will be exposed to air of very low relative humidity. Therefore, the lower part of the adsorption tower is filled with an adsorbent that has a large adsorption capacity (for example, activated alumina) at a place where the relative humidity is high, and the upper part of the adsorption tower is filled with an adsorbent that has a large adsorption capacity at a place where the relative humidity is low (for example, synthetic When both adsorbents are stacked in the tower at an appropriate ratio, the adsorption efficiency is significantly better than when either adsorbent is used alone. It is also possible to use it economically by reducing the total amount of filling.
吸着剤を単品で使用した場合と、異種の吸着剤
を積層して使用した場合の性能上の差異は、例え
ば第２図において活性アルミナと合成ゼオライト
とを積層したものは活性アルミナのみを単品で使
用したものに対してＡの部分の吸着容量が増加
し、また合成ゼオライトのみを単品で使用したも
のに対してＢの部分の吸着容量が増加することを
明瞭に示している。 The difference in performance between using a single adsorbent and using a stack of different types of adsorbents is, for example, in Figure 2, a stack of activated alumina and synthetic zeolite differs from a stack of activated alumina and a stack of different types of adsorbents. It clearly shows that the adsorption capacity of part A increases compared to the one used, and the adsorption capacity of part B increases compared to that of the synthetic zeolite used alone.
実施例
処理空気量 60Nm3／Hr（０℃、１気圧）
圧力 4.0Kg／cm2Ｇ（ゲージ）
入口温度 40℃
入口湿度 相対湿度100％
吸着塔の大きさ 内径204.7mm、
層高1150mm
この吸着塔に200℃の恒温器の中で24時間乾燥
した活性アルミナを充填し、上記の仕様条件の空
気を通過させたとき出口における乾燥空気の破過
時間は７時間23分であつた。これに対し同じく
200℃の恒温器の中で24時間乾燥した活性アルミ
ナを吸着塔の下半分に充填すると共に同様に乾燥
した合成セオライトを吸着塔の上半部に充填して
上記仕様条件の空気を通過させたとき出口におけ
る乾燥空気の破過時間は８時間12分となつた。Example Processing air amount 60Nm 3 /Hr (0℃, 1atm) Pressure 4.0Kg/cm 2 G (gauge) Inlet temperature 40℃ Inlet humidity Relative humidity 100% Size of adsorption tower Inner diameter 204.7mm, bed height 1150mm This adsorption When the tower was filled with activated alumina that had been dried for 24 hours in a thermostat at 200°C and air was passed under the above specification conditions, the breakthrough time of the dry air at the outlet was 7 hours and 23 minutes. On the other hand, the same
The lower half of the adsorption tower was filled with activated alumina that had been dried for 24 hours in a thermostat at 200°C, and the upper half of the adsorption tower was filled with synthetic theolite that had been dried in the same way, and the air under the above specification conditions was passed through. The breakthrough time of dry air at the outlet was 8 hours and 12 minutes.
さらにまた合成ゼオライトと活性アルミナの比
率を変化し、吸着塔下部に充填する活性アルミナ
を塔内の2/3とし、上部に合成ゼオライトを1/3充
填し、上記仕様条件の空気を通過させたとき出口
空気の破過時間は９時間08分に延長した。即ち合
成ゼオライトと活性アルミナを各1/2づつ吸着塔
に充填した場合の破過時間における吸着帯は第４
図に陰線で示すようであるが、活性アルミナを2/
３、合成ゼオライトを1/3とした場合の吸着帯は第
５図の陰線で示すようであつて、第５図における
Ｃの部分の吸着容量が増加したことにより破過時
間が延長したことが知られる。 Furthermore, the ratio of synthetic zeolite and activated alumina was changed, and the activated alumina packed in the lower part of the adsorption tower was 2/3 of the content in the tower, and the upper part was filled with 1/3 of the synthetic zeolite, allowing air to pass through under the above specification conditions. When the outlet air breakthrough time was extended to 9 hours and 8 minutes. In other words, when an adsorption tower is filled with 1/2 each of synthetic zeolite and activated alumina, the adsorption zone at breakthrough time is 4th.
As shown by the hidden line in the figure, activated alumina is
3. The adsorption zone when synthetic zeolite is reduced to 1/3 is shown by the hidden line in Figure 5, and the breakthrough time is extended due to the increased adsorption capacity in the part C in Figure 5. known.
本発明は以上のように吸着塔１の空気を流入す
る入口側（下部）に相対湿度が大きい領域で吸着
容量が持続して大きい吸着剤２を充填しその上部
に相対湿度が小さい領域で吸着容量が持続して大
きい吸着剤３を積層して充填するものであつて、
その積層する比率は吸着剤の特性に応じ1/2：1/2
又は2/3：1/3等の適宜に選択することで単品の吸
着剤を充填した場合に比較して破過時間を延長す
ることができる効果がある。 As described above, in the present invention, the inlet side (lower part) of the adsorption tower 1 into which air flows is filled with the adsorbent 2, which has a large adsorption capacity in a region where the relative humidity is high, and the adsorbent 2, which has a large adsorption capacity that lasts in the region where the relative humidity is high, is filled in the upper part of the adsorption tower 1 where the air flows into the inlet side (lower part). The adsorbent 3 is stacked and filled with a large capacity for a long time,
The stacking ratio is 1/2:1/2 depending on the characteristics of the adsorbent.
By appropriately selecting 2/3:1/3, etc., the breakthrough time can be extended compared to when a single adsorbent is filled.
なお、吸着塔に充填する吸着剤は２種又は２種
以上の複数種を積層して使用することもある。 In addition, the adsorbent filled in the adsorption tower may be used by stacking two or more kinds of adsorbents.
第１図は２種の吸着剤について相対湿度に対し
吸着容量が変化する特性を示す曲線図、第２図は
吸着塔の下部に活性アルミナを上部に合成ゼオラ
イトをそれぞれ1/2づつ充填して積層した場合と
いずれか一方の吸着剤を単品で使用した場合の吸
着容量の差異を説明する比較図、第３図は吸着塔
の下部2/3には活性アルミナを、上部1/3に合成ゼ
オライトを積層して充填した状態の吸着塔の縦断
面図、第４図は活性アルミナと合成ゼオライトを
各1/2づつ充填したときの破過時間における吸着
帯を示す図、第５図は同じく活性アルミナを2/3
と合成ゼオライトを1/3とを積層充填したときの
破過時間における吸着帯を示す図面である。
図中、１……吸着塔、２……吸着剤（活性アル
ミナ）、３……吸着剤（合成ゼオライト）。
Figure 1 is a curve diagram showing the change in adsorption capacity with respect to relative humidity for two types of adsorbents, and Figure 2 is a curve diagram showing how the adsorption capacity changes with relative humidity for two types of adsorbents. A comparison diagram explaining the difference in adsorption capacity between stacking and using either adsorbent alone. Figure 3 shows activated alumina in the lower 2/3 of the adsorption tower and synthesized in the upper 1/3. A vertical cross-sectional view of an adsorption tower filled with zeolite stacked and packed. Figure 4 is a diagram showing the adsorption zone at the breakthrough time when 1/2 each of activated alumina and synthetic zeolite are packed. Figure 5 is the same. 2/3 activated alumina
This is a drawing showing the adsorption zone at the breakthrough time when 1/3 of zeolite and 1/3 of synthetic zeolite are stacked and packed. In the figure, 1... adsorption tower, 2... adsorbent (activated alumina), 3... adsorbent (synthetic zeolite).
Claims (1)
る入口に近い方の塔内に相対湿度の大きい領域で
大きい吸着容量を持続的に有する極性吸着剤であ
る活性アルミナを総充填量の1/2〜2/3を充填し、
この吸着剤に積層して相対湿度の小さい領域で大
きい吸着容量を持続的に有する極性吸着剤である
合成ゼオライトを総充填量の1/3〜1/2を充填し、
他方の吸着塔の処理空気の一部を流入する流入口
に近い塔内に相対湿度の小さい領域で大きい吸着
容量を持続的に有する極性吸着剤である合成ゼオ
ライトを総充填量の1/3〜1/2を充填し、この吸着
剤に積層して相対湿度の大きい領域で大きい吸着
容量を持続的に有する極性吸着剤である活性アル
ミナを総充填量の1/2〜2/3を充填することを特徴
とする非加熱式除湿装置における吸着剤の充填方
法。1. Activated alumina, which is a polar adsorbent that has a continuous high adsorption capacity in areas with high relative humidity, is packed in one of the adsorption towers of the pair near the inlet into which the air to be treated flows in. Fill /2~2/3,
This adsorbent is laminated with synthetic zeolite, which is a polar adsorbent that continuously has a large adsorption capacity in areas with low relative humidity, and is filled with 1/3 to 1/2 of the total filling amount.
Synthetic zeolite, which is a polar adsorbent that has a continuous high adsorption capacity in areas with low relative humidity, is placed in the tower near the inlet into which part of the treated air of the other adsorption tower flows, and is filled with 1/3 to 1/3 of the total amount of synthetic zeolite. Fill 1/2 to 2/3 of the total amount with activated alumina, which is a polar adsorbent that is laminated to this adsorbent and has a continuous large adsorption capacity in areas with high relative humidity. A method for filling an adsorbent in a non-heating dehumidifier, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6532777A JPS54459A (en) | 1977-06-03 | 1977-06-03 | Method of charging absorbent to nonnheating dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6532777A JPS54459A (en) | 1977-06-03 | 1977-06-03 | Method of charging absorbent to nonnheating dehumidifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54459A JPS54459A (en) | 1979-01-05 |
| JPS6222646B2 true JPS6222646B2 (en) | 1987-05-19 |
Family
ID=13283700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6532777A Granted JPS54459A (en) | 1977-06-03 | 1977-06-03 | Method of charging absorbent to nonnheating dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54459A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56155322A (en) * | 1980-05-02 | 1981-12-01 | Agency Of Ind Science & Technol | Energy accumulating type air conditioner utilizing adsorption material |
| SE8301624D0 (en) * | 1983-03-24 | 1983-03-24 | Carl Goran Christer Mosell | SET AT CLEANER |
| FR2722111B1 (en) * | 1994-07-06 | 1996-08-14 | Rhone Poulenc Chimie | PROCESS FOR DRYING A GASEOUS OR LIQUID MIXTURE USING AN ALUMINUM ADSORBER AND A MOLECULAR SIEVE |
| BE1017002A3 (en) | 2006-03-17 | 2007-11-06 | Atlas Copco Airpower Nv | DEVICE FOR DRYING COMPRESSED GAS AND METHOD THEREOF APPLIED |
| JP5717396B2 (en) * | 2010-10-20 | 2015-05-13 | キヤノン株式会社 | Image processing apparatus and image processing method |
-
1977
- 1977-06-03 JP JP6532777A patent/JPS54459A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54459A (en) | 1979-01-05 |
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