JPH04121578A - High frequency reduced pressure drying device - Google Patents
High frequency reduced pressure drying deviceInfo
- Publication number
- JPH04121578A JPH04121578A JP24334790A JP24334790A JPH04121578A JP H04121578 A JPH04121578 A JP H04121578A JP 24334790 A JP24334790 A JP 24334790A JP 24334790 A JP24334790 A JP 24334790A JP H04121578 A JPH04121578 A JP H04121578A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum pump
- water
- drying
- cooling water
- flow meter
- 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.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000498 cooling water Substances 0.000 claims abstract description 39
- 239000002657 fibrous material Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 235000013351 cheese Nutrition 0.000 description 9
- 239000000835 fiber Substances 0.000 description 6
- 238000010981 drying operation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 2
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は減圧雰囲気下で、バラ毛及び糸などの繊維物を
高周波誘電加熱により加熱して、比較的低温度で乾燥す
る高周波減圧乾燥装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a high-frequency vacuum drying device that heats fibers such as loose wool and yarn in a reduced-pressure atmosphere using high-frequency dielectric heating and dries them at a relatively low temperature. Regarding.
［従来の技術］
従来この種の装置は乾燥槽と真空ポンプの間に凝縮器を
設け、真空ポンプで排気するに随って乾燥槽内の繊維か
ら蒸発した水分を凝縮器によって液化させ、乾燥槽の下
方に設けたドレンタンクに集めて滞溜させる構造で、ド
レンタンクに滞溜したドレン量を計量することで繊維か
らの蒸発水分の量を計測していた。[Prior art] Conventionally, this type of device has a condenser installed between the drying tank and the vacuum pump, and as the vacuum pump exhausts the air, the moisture that evaporates from the fibers in the drying tank is liquefied by the condenser, and the drying process is carried out. The structure was such that the drain was collected and retained in a drain tank installed below the tank, and the amount of evaporated water from the fibers was measured by weighing the amount of drain accumulated in the drain tank.
第２図に、このような従来の高周波減圧乾燥装置を示す
。FIG. 2 shows such a conventional high frequency vacuum drying apparatus.
１は乾燥槽で、電極１ａ、 ｌｂの間に繊維例えばチー
ズ２が入れられて処理される。 チーズ２は実際には図
示のように１個ではなく多数である。Reference numeral 1 denotes a drying tank, in which fibers such as cheese 2 are put between electrodes 1a and lb and processed. There are actually many cheeses 2 instead of one as shown.
電極１ａはチーズ２を乾燥槽に入れるときと、乾燥槽か
ら出すときは符号１ａ＋ に示す位置まで上昇させ、誘
電加熱中は符号１ａに示す位置まで下降させる。 １ｃ
は乾燥槽１の蓋である。 ３は高周波発振機で、その
出力も電極１ａ、 Ｉｂ間に印加してチーズ２を誘電加
熱する。 ３ａは高周波発振機３に設けられた冷却用の
熱交換器である。 ４は真空破壊弁、５は真空計、６は
ストレーナ７を介して乾燥槽１の底部に接続されたドレ
ンタンク、８はドレンタンク６内の液面レベルを検知す
るレベルセンサ、９はドレン弁、１０は凝縮器、１１は
排出管、１２は凝縮器１０で液化したドレンをドレンタ
ンク６に集めるドレン管、１３は凝縮器１０内の熱交換
器に冷却水を給水する給水弁、１４は排気弁１５と真空
逆止弁１６を介して凝縮器１０に接続した真空ポンプ、
１７は微調節弁、１８はフィルタ、１９は気水分離槽、
２０は荒引き用真空ポンプ、２１は荒引弁、２２は真空
逆止弁、２３は荒引きポンプ用気水分離槽で、それぞれ
図示の管路で接続され符号２４で示す給水口から、凝縮
器１０．真空ポンプ１４及び荒引き用真空ポンプ２０へ
冷却水を供給していた。 荒引き用真空ポンプ２０は乾
燥作業の初期と最後に短時間ずつ運転される。The electrode 1a is raised to the position shown by the symbol 1a+ when the cheese 2 is placed in the drying tank and taken out from the drying tank, and lowered to the position shown by the symbol 1a during dielectric heating. 1c
is the lid of drying tank 1. 3 is a high frequency oscillator, and its output is also applied between the electrodes 1a and Ib to dielectrically heat the cheese 2. 3a is a cooling heat exchanger provided in the high frequency oscillator 3. 4 is a vacuum break valve, 5 is a vacuum gauge, 6 is a drain tank connected to the bottom of the drying tank 1 via a strainer 7, 8 is a level sensor that detects the liquid level in the drain tank 6, 9 is a drain valve , 10 is a condenser, 11 is a discharge pipe, 12 is a drain pipe that collects condensate liquefied in the condenser 10 into the drain tank 6, 13 is a water supply valve that supplies cooling water to the heat exchanger in the condenser 10, and 14 is a water supply valve. a vacuum pump connected to the condenser 10 via an exhaust valve 15 and a vacuum check valve 16;
17 is a fine adjustment valve, 18 is a filter, 19 is a steam/water separation tank,
20 is a vacuum pump for roughing, 21 is a roughing valve, 22 is a vacuum check valve, and 23 is a steam/water separation tank for the roughing pump. They are connected to each other by pipes shown in the figure, and from the water supply port designated by numeral 24, condensation is carried out. Vessel 10. Cooling water was supplied to the vacuum pump 14 and the roughing vacuum pump 20. The roughing vacuum pump 20 is operated for a short time at the beginning and end of the drying operation.
この種の高周波減圧乾燥装置の処理能力の一例をあげる
と、処理容１３００ｋｇ（チーズ個数で約３００個）、
高周波出力１１００ｋである。An example of the processing capacity of this type of high-frequency vacuum drying equipment is a processing capacity of 1300 kg (approximately 300 pieces of cheese);
The high frequency output is 1100k.
［発明が解決しようとする課題〕
上記従来の技術は、乾燥槽と真空ポンプの間に凝縮器を
設け、この凝縮器で液化させた蒸発水分を乾燥槽下方の
ドレンタンクに滞溜させて計量しているため、高価な凝
縮器を要するばかりでなく、凝縮器に供給する冷却水量
が多く、そのためにエネルギーコストが高くつくという
問題点があった。[Problems to be Solved by the Invention] In the above conventional technology, a condenser is provided between the drying tank and the vacuum pump, and the evaporated water liquefied by the condenser is stored in a drain tank below the drying tank and measured. This not only requires an expensive condenser, but also requires a large amount of cooling water to be supplied to the condenser, resulting in high energy costs.
本発明はか＼る問題点を解消できる高周波減圧乾燥装置
を提供することを目的とする。An object of the present invention is to provide a high frequency reduced pressure drying apparatus that can solve the above problems.
上記目的を達成するために、本発明の高周波減圧乾燥装
置は、減圧雰囲気下で乾燥槽（１）内の繊維物（２）を
高周波誘電加熱により加熱して乾燥する装置において、
乾燥槽（１）内の繊維物（２）からの蒸発水分を吸収す
る真空ポンプ（１４） 、荒引き用真空ポンプ（２０）
とこれらの真空ポンプ（１４）、 （２０）に冷却水流
量計（３０）を経て冷却水を供給する給水配管（２９）
。In order to achieve the above object, the high frequency reduced pressure drying apparatus of the present invention is an apparatus that heats and dries the fibrous material (2) in the drying tank (1) by high frequency dielectric heating in a reduced pressure atmosphere.
Vacuum pump (14) for absorbing evaporated water from the textiles (2) in the drying tank (1), vacuum pump for roughing (20)
and a water supply pipe (29) that supplies cooling water to these vacuum pumps (14) and (20) via a cooling water flow meter (30).
.
（３１）と更に真空ポンプ（１４）、 （２０）の排気
管（２５） 。(31) and also the vacuum pump (14) and the exhaust pipe (25) of (20).
（２６）に排出された混合排気に更に冷却水を追加する
排気冷却水供給装置（２８）と排気管（２５）、 （２
６）を合流して連通ずる気水分離４’！ （２７）を具
備し、この気水分離槽（２７）に排水ポンプ（２４）、
排水流量計（３０’）を有する排水管（３３）と排気管
（３７）を連接したことを特徴とするものである。Exhaust cooling water supply device (28) that adds cooling water to the mixed exhaust gas discharged to (26), exhaust pipe (25), (2
6) Air and water separation 4' that merges and communicates! (27), and this air-water separation tank (27) is equipped with a drainage pump (24),
It is characterized in that a drain pipe (33) having a drain flow meter (30') and an exhaust pipe (37) are connected.
乾燥槽内の繊維物に含まれている水分は、真空ポンプに
よる減圧雰囲気下で高周波加熱されて比較的低温で蒸発
する。 この蒸発水分は真空ポンプで吸引され真空ポン
プの冷却水と混合されて真空ポンプの排気管に排出され
、更に排気冷却水供給装置からの冷却水と混合されて液
化して気水分離層に放出される。 真空ポンプへの冷却
水と排気冷却水供給装置から真空ポンプの排気に供給す
る冷却水とは、前述のように繊維からの蒸発水分と混合
されて気水分離槽に放出される。 気水分離槽に集めら
れた水は排水ポンプを経て排水流量計で計量排出される
。 一方冷却のために供給された水量は冷却水流量計で
計量されているのでその差即ち前述の蒸発水分の液化量
（ドレン量）は容易に計量される。 このドレン量を目
安として乾燥運転は施行される。Moisture contained in the fibers in the drying tank is evaporated at a relatively low temperature by high frequency heating under a reduced pressure atmosphere by a vacuum pump. This evaporated water is sucked in by the vacuum pump, mixed with the cooling water of the vacuum pump, and discharged to the exhaust pipe of the vacuum pump, and further mixed with the cooling water from the exhaust cooling water supply device, liquefied, and discharged into the air-water separation layer. be done. The cooling water supplied to the vacuum pump and the cooling water supplied from the exhaust cooling water supply device to the exhaust of the vacuum pump are mixed with evaporated moisture from the fibers and discharged into the steam/water separation tank, as described above. The water collected in the air-water separation tank is metered and discharged by a drainage flowmeter via a drainage pump. On the other hand, since the amount of water supplied for cooling is measured by a cooling water flow meter, the difference therebetween, that is, the amount of liquefied water (drain amount) mentioned above, can be easily measured. Drying operation is carried out using this amount of drain as a guideline.
第１図の実施例に於いて、ｌは乾燥槽で誘電加熱用の電
極１ａ、 ｌｂと蓋１ｃを備えている。 ２は被乾燥
物としてのチーズである。 符号１ａ＋ で示すのは、
チーズ２を出し入れするときに邪魔にならないように電
極１ａを移動させた状態を示す、 ３は電極１ａ、 ｌ
ｂに高周波電力を供給する高周波発振機で、冷却用の熱
交換器３ａを備えている。 ４は真空破壊弁、５は真空
計、１４は真空ポンプで排気弁１５と真空逆止弁１６を
介して乾燥槽１の上部へ、又、ストレーナ７、排気弁１
５’及び真空逆止弁１６を介して乾燥槽１の底部に連な
っている。１７は微調節弁、１８はフィルタでこの微調
節弁１７の開度を調節して乾燥槽内の圧力を所定の圧力
にする。In the embodiment shown in FIG. 1, l is a drying tank equipped with electrodes 1a and lb for dielectric heating and a lid 1c. 2 is cheese as a material to be dried. The code 1a+ indicates
The electrode 1a is moved so as not to get in the way when putting in and taking out the cheese 2. 3 indicates the electrode 1a, l
This is a high-frequency oscillator that supplies high-frequency power to the high-frequency oscillator b, and is equipped with a heat exchanger 3a for cooling. 4 is a vacuum breaker valve, 5 is a vacuum gauge, and 14 is a vacuum pump which is connected to the upper part of the drying tank 1 via an exhaust valve 15 and a vacuum check valve 16, and also a strainer 7 and an exhaust valve 1.
5' and the bottom of the drying tank 1 via a vacuum check valve 16. Numeral 17 is a fine adjustment valve, and 18 is a filter that adjusts the opening degree of this fine adjustment valve 17 to bring the pressure inside the drying tank to a predetermined pressure.
２０は荒引き用真空ポンプで、荒引き弁２１と真空逆止
弁２２を介して乾燥槽１の上部に連なっている。20 is a vacuum pump for roughing, which is connected to the upper part of the drying tank 1 via a roughing valve 21 and a vacuum check valve 22.
２５と２６は真空ポンプ１４と荒引き用真空ポンプ２０
の出口誹り導出された排気管で気水分離槽２７に連なっ
ている。２８は真空ポンプ１４の排気管２５に冷却水を
供給する給水装置でノズル２８ａと、このノズル２８ａ
より排気管２５に連なる管路２８ｂとからなる。25 and 26 are the vacuum pump 14 and the roughing vacuum pump 20
It is connected to the steam/water separation tank 27 through an exhaust pipe led out from the outlet. 28 is a water supply device that supplies cooling water to the exhaust pipe 25 of the vacuum pump 14, and includes a nozzle 28a;
It consists of a pipe line 28b that is connected to the exhaust pipe 25.
この排気冷却用給水装置２８からの冷却水が両真空ポン
プ１４．２０の排気を更に冷却して蒸発水分を液化させ
る。 ２９は真空ポンプ１４に冷却水を供給する給水装
置で、ノズル２９ａと該ノズル２９ａより真空ポンプ１
４に連なる管路２９ｂとからなる。 ３１は荒引き用真
空ポンプ２０に冷却水を供給する給水装置で、ノズル３
１ａと該ノズル３１ａより真空ポンプ２０に連なる管路
３１ｂとからなる。 ２４は給水管で冷却水流量計３０
を経て２８．２９．３１の三つの給水装置に冷却水を供
給する。 冷却水流量計３０で計量された冷却水は、両
真空ポンプ１４．２０の冷却を行なうと同時に給水装置
２８を経て冷却水を排気管２５に送り蒸発水分を気水分
離槽２７で完全に液化させて、排水流量計３０゛ で計
量され排水される。 両流置針３０．３０’ はコンピ
ュータ又はシーケンサ−制御により両者の差量が積算さ
れこの装置の乾燥運転の目安となる。The cooling water from this exhaust cooling water supply device 28 further cools the exhaust air of both vacuum pumps 14, 20 and liquefies the evaporated moisture. 29 is a water supply device that supplies cooling water to the vacuum pump 14, and the vacuum pump 1
It consists of a conduit 29b connected to 4. 31 is a water supply device that supplies cooling water to the roughing vacuum pump 20, and the nozzle 3
1a, and a conduit 31b connected from the nozzle 31a to the vacuum pump 20. 24 is the water supply pipe and cooling water flow meter 30
Cooling water is supplied to the three water supply devices on 28, 29, and 31. The cooling water measured by the cooling water flow meter 30 cools both vacuum pumps 14 and 20, and at the same time, the cooling water is sent to the exhaust pipe 25 via the water supply device 28, and the evaporated moisture is completely liquefied in the steam/water separation tank 27. Then, the water is measured with a 30° drainage flowmeter and drained. The difference between the two flow placement needles 30 and 30' is integrated by computer or sequencer control and serves as a guideline for the drying operation of this apparatus.
上述の実施例の装置は図示されていない制御装置で操作
される。 装置を始動させるには、給水管２４の基弁１
３及び給水弁３１ｃを開け、２９．３１の二つの給水装
置に水が供給されると同時に真空ポンプ１４、荒引き用
真空ポンプ２０を稼動させる。 この時点では排気冷
却用給水装置２８の給水弁２８ｃは閉となっており真空
度が所定の値に達するまではまだ蒸発作用は活発でない
のでその値になってから２８ｃが開となる。 冷却水が
排気管２５．２６を通って気水分離槽２７に溜り一定量
になると排水ポンプ３４を稼動させ排水弁３５．３６を
経て排水する。The apparatus of the embodiment described above is operated by a control device, not shown. To start the device, open the base valve 1 of the water supply pipe 24.
3 and the water supply valve 31c are opened, and at the same time water is supplied to the two water supply devices 29 and 31, the vacuum pump 14 and the roughing vacuum pump 20 are operated. At this point, the water supply valve 28c of the exhaust cooling water supply device 28 is closed, and since the evaporation action is not yet active until the degree of vacuum reaches a predetermined value, the valve 28c is opened after the degree of vacuum reaches that value. When the cooling water passes through the exhaust pipes 25 and 26 and accumulates in the steam-water separation tank 27 and reaches a certain amount, the drain pump 34 is operated and the water is drained through the drain valves 35 and 36.
乾燥槽１内が真空になり始めると高周波発振機３が始動
し電極１ａ、 ｌｂ間の繊維物（チーズ２）が誘電加熱
され、比較的低い温度の沸騰点で水分が蒸発する。 こ
の時点になってから排気冷却用給水装置２８の給水弁２
８ｃが開となる。 給水流量計３゜と排水流量計３０゛
はコンピュータ又はシーケンサ−制御により両者の差
量が表示されることになっているので、蒸発水分が発生
しないうちは０ （零）を表示しているが乾燥作業が進
むにつれてドレン量が表示される。 真空度が所定の値
に達すると荒引き用真空ポンプ２０は止まり給水弁２８
ｃ及び排水弁３６は共に閉となる。 真空ポンプ１４は
乾燥作業中連続的に運転され、その間に排気弁１５と１
５゜は交互に開閉して乾燥槽１の底からドレンの１部を
乾燥槽１の上部からは蒸発水分を含んだ空気を吸引する
。 荒引き用真空ポンプ２０は真空ポンプ１４より大容
量であるが、乾燥作業の初期の５〜６分と最後の仕上げ
乾燥時の２〜３分だけ運転する。When the inside of the drying tank 1 begins to become a vacuum, the high frequency oscillator 3 is started, and the fibrous material (cheese 2) between the electrodes 1a and 1b is dielectrically heated, and water evaporates at a relatively low boiling point. At this point, the water supply valve 2 of the exhaust cooling water supply device 28
8c is open. The water supply flow meter 3゜ and the drainage flow meter 30゛ are supposed to display the difference between the two by computer or sequencer control, so they will display 0 (zero) as long as no evaporated water is generated. The amount of drainage is displayed as the drying process progresses. When the degree of vacuum reaches a predetermined value, the roughing vacuum pump 20 stops and the water supply valve 28
c and the drain valve 36 are both closed. The vacuum pump 14 is operated continuously during the drying operation, during which the exhaust valves 15 and 1
5° is opened and closed alternately to suck a portion of the drain from the bottom of the drying tank 1 and air containing evaporated moisture from the top of the drying tank 1. Although the roughing vacuum pump 20 has a larger capacity than the vacuum pump 14, it is operated only for 5 to 6 minutes at the beginning of the drying operation and for 2 to 3 minutes during the final final drying.
真空ポンプ１４の排気管２５と荒引き用真空ポンプ２０
の排気管２６は合流して気水分離槽２７に連なり吸引さ
れた蒸発水分は凝縮液化され残りの空気は排気口３７か
ら大気中に放出される。 乾燥作業が終了したら高周波
発振８１３．真空ポンプ１４．２０は停止し、真空破壊
弁４を開け、乾燥槽１内を大気圧に戻してから蓋１ｃを
開は被乾燥物２を取り出す。Exhaust pipe 25 of vacuum pump 14 and roughing vacuum pump 20
The exhaust pipes 26 join together and connect to a steam/water separation tank 27, where the sucked evaporated water is condensed and liquefied, and the remaining air is discharged into the atmosphere from the exhaust port 37. When the drying work is completed, high frequency oscillation 813. The vacuum pumps 14 and 20 are stopped, the vacuum break valve 4 is opened, and the inside of the drying tank 1 is returned to atmospheric pressure, and then the lid 1c is opened and the object 2 to be dried is taken out.
３００ｋｇのチーズを遠心脱水後、１００に−の高周波
出力の実施例の装置で乾燥作業をした結果、処理時間が
１３０分で、冷却水の消費量は従来の技術に比較して１
５％に当る１、０ｔｏｎ／ｌｌｒが節減できた。After 300 kg of cheese was centrifugally dehydrated, it was dried using the device of the example with a high frequency output of 100 -.As a result, the processing time was 130 minutes, and the consumption of cooling water was 1% compared to the conventional technology.
We were able to save 1.0 ton/llr, which is 5%.
本発明の高周波減圧乾燥装置はと上述のように構成され
ているので、従来技術のように乾燥槽と真空ポンプの間
の減圧部分に設けた凝縮器を必要とせず更にドレン量を
測定するために給水、排水の両流置針の組合せだけとな
ったため装置全体が簡単となりコスト低減の効果も大で
ある。Since the high frequency vacuum drying device of the present invention is configured as described above, it does not require a condenser installed in the pressure reducing section between the drying tank and the vacuum pump as in the prior art, and can further measure the amount of drain. Since only a combination of inlet needles for water supply and drainage is required, the entire device is simple and has a significant cost reduction effect.
第１図は本発明の実施例の全体図、第２図は従来技術の
全体図である。
ｌ・・・乾燥槽、２・・・繊維物、１４・・・真空ポン
プ、２０・・・荒引き用真空ポンプ、２４・・給水管、
２５．２６・・・排気管、２７・・・気水分離槽、２８
・・・排気冷却用給水装置、３０・・冷却水流量計、３
０゛・・・排水流量計、３３・・・排水管、３７・・・
排気管FIG. 1 is an overall view of an embodiment of the present invention, and FIG. 2 is an overall view of the prior art. l... Drying tank, 2... Textile, 14... Vacuum pump, 20... Vacuum pump for roughing, 24... Water supply pipe,
25.26... Exhaust pipe, 27... Steam/water separation tank, 28
... Exhaust cooling water supply device, 30 ... Cooling water flow meter, 3
0゛... Drain flow meter, 33... Drain pipe, 37...
Exhaust pipe
Claims (1)
周波誘電加熱により加熱して乾燥する装置において、乾
燥槽（１）内の繊維物（２）からの蒸発水分を吸収する
真空ポンプ（１４）、荒引き用真空ポンプ（２０）とこ
れらの真空ポンプ（１４）、（２０）に冷却水流量計（
３０）を経て冷却水を供給する給水配管（２９）、（３
１）と更に真空ポンプ（１４）、（２０）の排気管（２
５）、（２６）に排出された混合排気に更に冷却水を追
加する排気冷却水供給装置（２８）と排気管（２５）、
（２６）を合流して連通する気水分離槽（２７）を具備
し、この気水分離槽（２７）に排水ポンプ（２４）、排
水流量計（３０’）を有する排水管（３３）と排気管（
３７）を連接したことを特徴とする高周波減圧乾燥装置
。 ２、冷却水流量計（３０）と排水流量計（３０’）がコ
ンピュータ又はシーケンサー制御により連動され常に両
者の差量を積算表示する表示器を具備した請求項１記載
の高周波減圧乾燥装置。[Claims] 1. In an apparatus for heating and drying a fibrous material (2) in a drying tank (1) by high-frequency dielectric heating under a reduced pressure atmosphere, from the fibrous material (2) in the drying tank (1) A vacuum pump (14) for absorbing evaporated moisture, a vacuum pump (20) for roughing, and a cooling water flow meter (
Water supply pipes (29), (30) that supply cooling water via
1) and the exhaust pipes (2) of the vacuum pumps (14) and (20).
5), an exhaust cooling water supply device (28) and an exhaust pipe (25) that further add cooling water to the mixed exhaust discharged to (26);
(26) and a drain pipe (33) having a drain pump (24) and a drain flow meter (30'). Exhaust pipe(
37) A high frequency reduced pressure drying device characterized by being connected to each other. 2. The high frequency vacuum drying apparatus according to claim 1, wherein the cooling water flow meter (30) and the drainage flow meter (30') are linked by computer or sequencer control and are equipped with a display that constantly displays the cumulative difference between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24334790A JP2860149B2 (en) | 1990-09-12 | 1990-09-12 | High frequency vacuum drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24334790A JP2860149B2 (en) | 1990-09-12 | 1990-09-12 | High frequency vacuum drying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04121578A true JPH04121578A (en) | 1992-04-22 |
| JP2860149B2 JP2860149B2 (en) | 1999-02-24 |
Family
ID=17102481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24334790A Expired - Fee Related JP2860149B2 (en) | 1990-09-12 | 1990-09-12 | High frequency vacuum drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2860149B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317997B1 (en) | 2000-10-19 | 2001-11-20 | Heatwave Drying Systems Ltd | Vacuum port positioning for vacuum drying systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015078817A (en) * | 2013-10-18 | 2015-04-23 | 株式会社スギノマシン | Vacuum dryer |
-
1990
- 1990-09-12 JP JP24334790A patent/JP2860149B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317997B1 (en) | 2000-10-19 | 2001-11-20 | Heatwave Drying Systems Ltd | Vacuum port positioning for vacuum drying systems |
| WO2002033336A1 (en) | 2000-10-19 | 2002-04-25 | Heatwave Technologies Inc. | Vacuum port positioning for vacuum drying systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2860149B2 (en) | 1999-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5806204A (en) | Material dryer using vacuum drying and vapor condensation | |
| KR100827586B1 (en) | Distillation apparatus | |
| US5102504A (en) | Device for solvent recovery in an ultrasonic cleaning device | |
| CN101046351B (en) | Low temperature vacuum drier | |
| JP2779431B2 (en) | High frequency vacuum drying equipment | |
| WO2019019514A1 (en) | System for automatic gas extraction and discharge | |
| JPH04121578A (en) | High frequency reduced pressure drying device | |
| US5524652A (en) | Apparatus for cleaning metallic workpieces | |
| CN206295614U (en) | The MVR vaporising devices of low boiling volatile matter in evaporation material can be removed | |
| US3528180A (en) | Method of treating fibrous or filamentary material | |
| JP4240351B2 (en) | Evaporation concentration device | |
| CN108397991A (en) | A kind of high frequency steam-to-vacuum drying box and its implementation | |
| CN203704445U (en) | Solution regeneration device based on flash evaporation | |
| CN209735009U (en) | Water-saving type condensing agent-free rotary evaporator | |
| CN217756940U (en) | Combined heat supply evaporation equipment | |
| JPH0961053A (en) | Condenser and vacuum container | |
| CN206334364U (en) | Enclosed compression heat pump vapo(u)rization system | |
| EP0070827A1 (en) | Microwave fabric dryer method and apparatus | |
| US3272207A (en) | Tobacco moistening | |
| US2460197A (en) | Vacuum chamber evacuation | |
| CN219897059U (en) | Boiling pot of vacuum low-temperature evaporator | |
| JPH0838134A (en) | Thawing device | |
| CN211975328U (en) | Water-discharging-free device of gas generator | |
| CN212369574U (en) | Plant extract drying device | |
| CN219792575U (en) | Heating and refrigerating system of vacuum low-temperature evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |