JP2003339827A - Drying and sterilizing machine - Google Patents
Drying and sterilizing machineInfo
- Publication number
- JP2003339827A JP2003339827A JP2002152418A JP2002152418A JP2003339827A JP 2003339827 A JP2003339827 A JP 2003339827A JP 2002152418 A JP2002152418 A JP 2002152418A JP 2002152418 A JP2002152418 A JP 2002152418A JP 2003339827 A JP2003339827 A JP 2003339827A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- air
- path
- heat exchanger
- heating
- 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
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
【0001】[0001]
【発明が属する技術分野】本発明は乾燥滅菌機に係り、
特に、熱風循環ファンからダクトを介して供給された乾
燥滅菌エアを、耐熱フィルタを透過させて浄化した後、
乾燥滅菌空間内に導入して物品の乾燥滅菌を行い、その
後冷却処理するトンネル型乾燥滅菌機に関するものであ
る。TECHNICAL FIELD The present invention relates to a dry sterilizer,
Especially, after sterilizing the dry sterilization air supplied from the hot air circulation fan through the duct through the heat resistant filter,
The present invention relates to a tunnel type dry sterilizer for introducing articles into a dry sterilization space to sterilize articles by drying and then cooling the articles.
【0002】[0002]
【従来の技術】トンネル型乾燥滅菌機では、上流側から
順に入口領域を構成する挿入部、滅菌領域を構成する加
熱滅菌部および冷却領域を構成する冷却部からなってい
る。この乾燥滅菌機の上流側には、洗浄機が、下流側に
は、充填機がそれぞれ接続される。各部の処理室内の圧
力は厳密に制御され、冷却部の圧力が最も高く、次いで
加熱滅菌部が、そして挿入部が最も低くなっている(冷
却部内の圧力>加熱滅菌部の圧力>挿入部の圧力)。こ
のため、冷却部から加熱滅菌部を経て挿入部に向けてエ
アの流れが生じるようになっている。2. Description of the Related Art In a tunnel type dry sterilizer, an inlet portion constituting an inlet region, a heat sterilizing portion constituting a sterilizing region, and a cooling portion constituting a cooling region are arranged in this order from the upstream side. A washing machine is connected to the upstream side of the drying sterilizer, and a filling machine is connected to the downstream side. The pressure in the processing chamber of each part is tightly controlled, the pressure in the cooling part is the highest, followed by the heat sterilization part, and the insertion part is the lowest (pressure in the cooling part> pressure in the heat sterilization part> pressure). Therefore, an air flow is generated from the cooling unit to the insertion unit through the heat sterilization unit.
【0003】加熱滅菌部は、乾燥滅菌エアを加圧供給し
て内部を循環させるファンと、前記乾燥滅菌エアを浄化
するフィルタと、前記ファンから送風されたエアをフィ
ルタに案内するダクトとを備えており、上流側の挿入部
から加熱滅菌部内に搬入されてコンベヤによって搬送さ
れている物品に、前記フィルタで浄化された乾燥滅菌エ
アを吹き付けて乾燥滅菌した後、下流側の冷却部に排出
するようになっている。冷却部は、内部のエアを冷却す
る熱交換器と、冷却されたエアを加圧供給して内部を循
環させるファンと、この冷却されたエアを浄化するフィ
ルタ(HEPAフィルタ)と、浄化された冷却エアを室
内に導き物品を冷却処理する冷却処理室とを備えてい
る。冷却処理された物品は、下流側の充填機に送られる
ようになっている。冷却部には、外部に開口する外気取
り入れ口が設けられ、生産運転時、内部の陽圧を保持す
るようになっている。HEPAフィルタは高温エアの浄
化に使用される。The heat sterilization unit comprises a fan for supplying dry sterilizing air under pressure to circulate the inside, a filter for purifying the dry sterilizing air, and a duct for guiding the air blown from the fan to the filter. The dry sterilization air purified by the filter is blown to the articles carried into the heat sterilization section from the insertion section on the upstream side and conveyed by the conveyor to dry sterilize, and then discharged to the cooling section on the downstream side. It is like this. The cooling unit includes a heat exchanger for cooling the internal air, a fan for supplying the cooled air under pressure to circulate the air, a filter (HEPA filter) for cleaning the cooled air, and a cleaned unit. And a cooling processing chamber for guiding cooling air into the room and cooling the article. The cooled item is sent to the filling machine on the downstream side. The cooling unit is provided with an outside air intake opening to the outside so as to maintain a positive pressure inside during the production operation. HEPA filters are used to purify hot air.
【0004】ところで、下流側充填機の無菌状態が破ら
れると、無菌でないエアが冷却処理室内に侵入する畏れ
がある。このため、従来の乾燥滅菌機では、冷却部にヒ
ータを設け、冷却処理室を加熱滅菌するようにしてい
る。[0004] By the way, when the aseptic condition of the downstream filling machine is broken, there is a fear that non-sterile air may enter the cooling processing chamber. For this reason, in the conventional dry sterilizer, a heater is provided in the cooling unit to heat-sterilize the cooling processing chamber.
【0005】[0005]
【発明が解決しようとする課題】冷却処理室を加熱滅菌
するには、ヒータの加熱により内部の温度をセ氏180
度程度で所定の時間保持する必要がある。加熱滅菌後、
冷却部内の温度が高温状態で、例えばセ氏180度にな
っている状態でエアをそのまま熱交換器(エアクーラ
ー)に通すことはできない。セ氏100度以上の熱風を
流す場合には、第1種圧力容器となるため、加熱滅菌す
るたびに熱交換器の冷媒を給排水しなければならず、作
業が煩わしくなるという問題がある。これに対し、ヒー
タが自然に冷えるのを待つという手段もあるものの非常
に時間がかかり作業効率が悪い。また、加熱滅菌後、冷
却部内を高温状態から急速に冷却すると、温度差の激し
い使い方によりHEPAフィルタの損傷を招くおそれが
ある。In order to heat sterilize the cooling processing chamber, the internal temperature is set to 180 ° C. by heating the heater.
It is necessary to maintain the temperature for a predetermined time. After heat sterilization,
When the temperature inside the cooling unit is high, for example, when the temperature is 180 degrees Celsius, air cannot be passed through the heat exchanger (air cooler) as it is. When hot air of 100 degrees Celsius or higher is used, the pressure vessel becomes a first-class pressure vessel, so that the refrigerant in the heat exchanger must be supplied and drained each time heat sterilization is performed, which causes a problem of troublesome work. On the other hand, although there is a means of waiting for the heater to cool naturally, it takes a very long time and the work efficiency is low. In addition, if the inside of the cooling unit is rapidly cooled from a high temperature state after heat sterilization, the HEPA filter may be damaged due to usage with a large temperature difference.
【0006】さらに、冷却部には、内部の陽圧を保持す
るため外気取り入れ口が設けられているが、外気の取り
込み量を任意に変化させることができず、陽圧度の管理
が難しいという問題があった。Further, although the cooling portion is provided with an outside air intake for holding the positive pressure inside, the intake amount of outside air cannot be arbitrarily changed, and it is difficult to control the degree of positive pressure. There was a problem.
【0007】本発明は前記課題を解決するためになされ
たもので、冷媒の給排水が不要で、冷却工程の時間を短
縮することができ、しかも、フィルタを良好に維持する
温度管理を行うことができるとともに、陽圧度の管理を
容易に行うことができる乾燥滅菌機を提供することを目
的とするものである。The present invention has been made in order to solve the above-mentioned problems. It is not necessary to supply and drain the refrigerant, the time for the cooling process can be shortened, and the temperature can be controlled to maintain the filter in a good condition. It is an object of the present invention to provide a drying sterilizer capable of controlling positive pressure easily.
【0008】[0008]
【課題を解決するための手段】本発明に係る乾燥滅菌機
は、搬入される物品を加熱して乾燥滅菌を行う加熱部
と、この加熱部から搬送される加熱された物品を冷却す
る冷却部とを備えた乾燥滅菌機において、冷却部には、
エアを冷却する熱交換器と、エアをフィルタを介して冷
却処理室に送り循環させるファンとを設けるとともに、
エアを加熱して乾燥滅菌を行う加熱手段を設け、冷却処
理室から熱交換器を経由してファンに到る経路と冷却処
理室から熱交換器を迂回してファンに到る経路とに切換
可能な切換手段を設けたものである。SUMMARY OF THE INVENTION A dry sterilizer according to the present invention comprises a heating section for heating an article to be carried in for dry sterilization, and a cooling section for cooling a heated article conveyed from the heating section. In the drying sterilizer equipped with,
A heat exchanger that cools the air and a fan that circulates the air through the filter to the cooling processing chamber are provided, and
Provided with heating means for heating air to perform dry sterilization, switching between the route from the cooling processing chamber to the fan via the heat exchanger and the route from the cooling processing chamber to the fan bypassing the heat exchanger to the fan. A possible switching means is provided.
【0009】また、請求項2に係る乾燥滅菌機は、冷却
部には、外気を取り入れ可能な外気取り入れ手段を設け
たものである。In the dry sterilizer according to the second aspect, the cooling section is provided with an outside air intake means capable of taking in outside air.
【0010】さらに、請求項3に係る乾燥滅菌機は、冷
却処理室には、冷却処理室のエア温度を検出する温度検
出手段を設けるとともに、検出されたエア温度に基づい
て、切換手段と取り入れ手段とのうち少なくともいずれ
か一方を選択して制御する制御手段を設けたものであ
る。Further, in the drying sterilizer according to the third aspect, the cooling processing chamber is provided with temperature detecting means for detecting the air temperature of the cooling processing chamber, and based on the detected air temperature, the switching means is incorporated. A control means for selecting and controlling at least one of the means is provided.
【0011】請求項4に係る乾燥滅菌機は、制御手段
は、切換手段を動作させて冷却処理室から熱交換器を迂
回させてファンに到る経路に切り換え、加熱手段を動作
させ外気を取り入れないで形成される加熱経路と、この
加熱経路と同一の経路で加熱手段の動作が停止される第
1の冷却経路と、前記切換手段により熱交換器を迂回さ
せてファンに到る経路に切り換えたまま、加熱手段が非
動作状態で前記取り入れ手段により外気を取り入れて形
成される第2の冷却経路と、前記切換手段を動作させて
冷却処理室から熱交換器を経由させてファンに到る経路
に切り換え、前記加熱手段を非動作状態のまま外気を取
り入れて形成される第3の冷却経路との各経路を選択し
て切り換えるようにしたものである。In the dry sterilizer according to the fourth aspect, the control means operates the switching means to switch the cooling processing chamber from the heat exchanger to the path to the fan and operates the heating means to take in outside air. Without a heating path, a first cooling path in which the operation of the heating means is stopped in the same path as this heating path, and a path to reach the fan by bypassing the heat exchanger by the switching means. As it is, the heating means is in a non-operating state, and the second cooling path formed by taking in the outside air by the intake means and the switching means are operated to reach the fan from the cooling processing chamber via the heat exchanger. The heating means is switched to a path, and a third cooling path formed by taking in outside air is selected and switched while the heating means is in a non-operating state.
【0012】[0012]
【発明の実施の形態】以下、図面に示す実施の形態によ
り本発明を説明する。図1は本発明の一実施の形態に係
る乾燥滅菌機の一部破断側面図、図2は図1のII−I
I線に沿う断面図である。この乾燥滅菌機は、図1に示
すように、機枠2の内部が加熱部(滅菌領域)A、この
加熱部Aの上流側(図1の左側)が挿入部(入口領域)
Bであり、上流側から搬送されてきた容器等の物品(図
示せず)がこの挿入部Bから加熱部A内に挿入される。
また、加熱部Aの下流側(図1の右側)が冷却部(冷却
領域)Cであり、加熱部Aで乾燥滅菌された容器(図示
せず)が冷却部Cに排出されて冷却される。この冷却部
Cは、下流側の充填室(図示せず)に接続されており、
容器は冷却された後充填室に送られる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to embodiments shown in the drawings. 1 is a partially cutaway side view of a drying sterilizer according to an embodiment of the present invention, and FIG. 2 is a II-I of FIG.
It is sectional drawing which follows the I line. In this drying sterilizer, as shown in FIG. 1, the inside of the machine frame 2 is a heating section (sterilization area) A, and the upstream side of this heating section A (left side in FIG. 1) is an insertion section (inlet area).
B, an article (not shown) such as a container conveyed from the upstream side is inserted into the heating section A from the insertion section B.
Further, the downstream side (right side in FIG. 1) of the heating unit A is a cooling unit (cooling region) C, and a container (not shown) dried and sterilized by the heating unit A is discharged to the cooling unit C and cooled. . This cooling unit C is connected to a filling chamber (not shown) on the downstream side,
The container is cooled and then sent to the filling chamber.
【0013】冷却部C(機枠2の内部)の下部側には、
幅の広い容器搬送コンベヤ6が設置されており、この搬
送コンベヤ6の両側に設けられたガイド6a、6a間
に、前記挿入部Bから挿入された多数の容器(図示せ
ず)が案内されて、図1の矢印方向に連続的に搬送され
る。この搬送コンベヤ6の上方の空間が冷却処理室(冷
却処理空間)8になっており、冷却部Cの上部に設けら
れた循環ファン10から加圧供給されたエアが、ダクト
12を介して耐熱フィルタ(HEPAフィルタ)14に
導入され、このフィルタ14によって浄化された後、前
記冷却処理室8に送られる。冷却処理室8の下方に配置
された搬送コンベヤ6は上下にエアが通過できるように
なっており、フィルタ14によって浄化されたエアは、
この搬送コンベヤ6を上方から下方へと通過して、搬送
されている容器等の物品(図示せず)を冷却する。冷却
部Cには、図1に示すように、循環ファン10、ダクト
12、耐熱フィルタ14および冷却処理室8からなる送
風浄化機構が上下流側に2台設置されている。On the lower side of the cooling section C (inside the machine casing 2),
A wide container conveyor 6 is installed, and a large number of containers (not shown) inserted from the insertion section B are guided between guides 6a provided on both sides of the conveyor 6a. , Are continuously conveyed in the arrow direction of FIG. The space above the transfer conveyor 6 is a cooling processing chamber (cooling processing space) 8, and the air pressurized and supplied from the circulation fan 10 provided above the cooling section C is heat-resistant via the duct 12. It is introduced into a filter (HEPA filter) 14, purified by this filter 14, and then sent to the cooling processing chamber 8. The transfer conveyor 6 arranged below the cooling processing chamber 8 allows air to pass vertically, and the air purified by the filter 14 is
The article (not shown) such as a container being transported is cooled by passing through the transport conveyor 6 from above to below. In the cooling unit C, as shown in FIG. 1, two ventilation purification mechanisms including a circulation fan 10, a duct 12, a heat resistant filter 14 and a cooling processing chamber 8 are installed on the upstream and downstream sides.
【0014】この実施の形態に係る乾燥滅菌機では、図
2に示すように、機枠2内には、冷却処理室8から循環
ファン10を結ぶ経路に第1ないし第3の区画室21、
22、23がそれぞれ順に形成される。冷却処理室8と
連通する第1の区画室21には、ヒータ(加熱手段)1
6が、第2の区画室22には、熱交換器(エアークーラ
ー)18が、第3の区画室23には、循環ファン10が
それぞれ配置される。第3の区画室23下方の空間に
は、ダクト12下端に接続される耐熱フィルタ14と冷
却処理室8が配置され、耐熱フィルタ14側から漏れた
エアが第3の区画室23に流れるようになっている。ま
た、冷却処理室8で冷却処理を終えて搬送コンベヤ6を
通過したエアは、出口24から第1の区画室(ヒータ側
区画室)21に排出される。第1の区画室21には、切
換通路(切換手段)31が設けられ、第1の区画室21
を第2の区画室(熱交換器側区画室)22または第3の
区画室(ファン側区画室)23のいずれか一方と連通さ
せてエアを導くようになっている。In the dry sterilizer according to this embodiment, as shown in FIG. 2, in the machine frame 2, first to third compartments 21 are provided in a path connecting the cooling processing chamber 8 to the circulation fan 10.
22 and 23 are sequentially formed. A heater (heating means) 1 is provided in the first compartment 21 that communicates with the cooling processing chamber 8.
6, a heat exchanger (air cooler) 18 is arranged in the second compartment 22, and a circulation fan 10 is arranged in the third compartment 23. In the space below the third compartment 23, the heat resistant filter 14 connected to the lower end of the duct 12 and the cooling treatment chamber 8 are arranged so that the air leaking from the heat resistant filter 14 side flows into the third compartment 23. Has become. Further, the air that has finished the cooling processing in the cooling processing chamber 8 and passed through the transport conveyor 6 is discharged from the outlet 24 to the first partitioned chamber (heater-side partitioned chamber) 21. A switching passage (switching means) 31 is provided in the first partitioned chamber 21.
Is communicated with either the second compartment (heat exchanger side compartment) 22 or the third compartment (fan side compartment) 23 to guide air.
【0015】切換通路31は、図2に示すように、第1
の区画室21の上部に設けられ、両端が第2の区画室2
2と第3の区画室23とにそれぞれ開口している。この
切換通路31は、揺動して第1の区画室21を第2の区
画室22または第3の区画室23のいずれか一方と連通
するように切り換える切換バルブ(切換手段)32を備
えている。この切換バルブ32は図示しない制御装置
(制御手段)に接続され、指令信号に基づいて切り換え
動作をするようになっている。As shown in FIG. 2, the switching passage 31 has a first passage.
Of the second compartment 2 provided at the top of the second compartment 21
2 and the third compartment 23 are opened respectively. The switching passage 31 is provided with a switching valve (switching means) 32 that swings to switch the first partitioned chamber 21 to communicate with either the second partitioned chamber 22 or the third partitioned chamber 23. There is. The switching valve 32 is connected to a control device (control means) (not shown) so as to perform a switching operation based on a command signal.
【0016】ヒータ16は冷却処理室8を加熱滅菌する
ために設けられ、冷却部C内の加熱滅菌処理後の冷却時
や生産運転時には、動作が停止される。ヒータ16およ
び熱交換器18は図示しない制御装置により動作が制御
されるようになっている。The heater 16 is provided for heat sterilizing the cooling treatment chamber 8, and its operation is stopped during cooling after heat sterilization treatment in the cooling section C or during production operation. The operations of the heater 16 and the heat exchanger 18 are controlled by a controller (not shown).
【0017】第2の区画室22と第3の区画室23との
間には、両室を仕切る炉壁(区画壁)33が設けられ
る。この炉壁33には、両区画室22、23を連通する
開口部34が形成され、この開口部34には、開閉バル
ブ(切換手段)36が設けられる。開閉バルブ36は、
図示しない制御装置(制御手段)からの指令に基づいて
開口部34を開閉するようになっている。このため、こ
れら切換バルブ32と開閉バルブ36との動作に応じ
て、冷却処理室8から循環ファン10を結ぶ経路は、冷
却処理室8−第1の区画室21−第3の区画室23の順
で形成される経路C1(図3の(A)および(B)参
照)と、冷却処理室8−第1の区画室21−第2の区画
室22−第3の区画室23の順で形成される経路C2
(図3の(C)および(D)参照)との2つの循環経路
のうちいずれか一方を選択できるようになっている。切
換手段は第1ないし第3の区画室21〜23、切換通路
31、切換バルブ32および開閉バルブ36により構成
される。Between the second compartment 22 and the third compartment 23, a furnace wall (compartment wall) 33 for partitioning the two compartments is provided. The furnace wall 33 is formed with an opening 34 that connects the two compartments 22, 23 to each other, and an opening / closing valve (switching means) 36 is provided in the opening 34. The open / close valve 36 is
The opening 34 is opened and closed based on a command from a control device (control means) not shown. Therefore, in accordance with the operation of the switching valve 32 and the opening / closing valve 36, the path connecting the cooling processing chamber 8 to the circulation fan 10 is the cooling processing chamber 8-first partition chamber 21-third partition chamber 23. The path C1 formed in this order (see (A) and (B) of FIG. 3), the cooling processing chamber 8-the first partitioned chamber 21, the second partitioned chamber 22 and the third partitioned chamber 23 in this order. Formed path C2
One of the two circulation paths (see (C) and (D) of FIG. 3) can be selected. The switching means is composed of first to third compartments 21 to 23, a switching passage 31, a switching valve 32 and an opening / closing valve 36.
【0018】第2の区画室22には、図2に示すよう
に、外部と連通し外気を内部に導入する外気取り入れ口
(外気取り入れ手段)41が設けられる。この外気取り
入れ口41には、外気取り入れ口41の開口部を開閉可
能にかつ開口面積を可変に調整する可変バルブ(外気取
り入れ手段)42が取り付けられる。この可変バルブ4
2は図示しない制御装置(制御手段)に接続され、指令
信号に基づいて動作するようになっている。図示しない
制御装置は、開閉バルブ36と可変バルブ42を制御
し、内部に導入される外気の取り込み量を調整すること
ができるようになっている。外気取り入れ手段は外気取
り入れ口41と可変バルブ42とにより構成される。導
入された外気は循環するエアに混合される。最も下流側
の冷却部Cの冷却処理室8の下部には、図示していない
が、排気用ファン(図示せず)と開閉弁(図示せず)を
介して接続される外気導入時の排気ダクト(図示せず)
が取り付けられており、冷却部C内に外気を取り込んだ
ときに図示しない開閉弁を開き、逃がすようになってい
る。As shown in FIG. 2, the second compartment 22 is provided with an outside air intake (outside air intake means) 41 which communicates with the outside and introduces outside air into the inside. A variable valve (outside air intake means) 42 for opening / closing the opening of the outside air intake 41 and variably adjusting the opening area is attached to the outside air intake 41. This variable valve 4
Reference numeral 2 is connected to a control device (control means) (not shown), and operates based on a command signal. A control device (not shown) controls the opening / closing valve 36 and the variable valve 42 to adjust the intake amount of the outside air introduced into the inside. The outside air intake means includes an outside air intake port 41 and a variable valve 42. The introduced outside air is mixed with the circulating air. Although not shown, the lower part of the cooling processing chamber 8 of the cooling section C on the most downstream side is connected to an exhaust fan (not shown) and an opening / closing valve (not shown) at the time of introduction of outside air. Duct (not shown)
Is attached, and when the outside air is taken into the cooling section C, an on-off valve (not shown) is opened to allow it to escape.
【0019】可変バルブ42が所定の開度で開かれる
と、図3の(B)および(C)に示すように、同時に開
閉バルブ36も開かれ、外気が経路C3を通じて内部に
導入される。可変バルブ42を閉じると、図3の(A)
および(D)に示すように、外気の導入は阻止され、冷
却部Cの内部では、切換バルブ32と開閉バルブ36と
の動作に応じて、経路C1またはC2が形成されるよう
になっている。When the variable valve 42 is opened at a predetermined opening, the open / close valve 36 is simultaneously opened as shown in FIGS. 3B and 3C, and the outside air is introduced into the interior through the path C3. When the variable valve 42 is closed, FIG.
As shown in (D) and (D), introduction of outside air is blocked, and inside the cooling section C, the path C1 or C2 is formed according to the operation of the switching valve 32 and the opening / closing valve 36. .
【0020】冷却処理室8には、図2に示すように、エ
アの温度を検出するエア温度監視用温度計(温度検出手
段)45と炉内壁面の温度を検出する炉内壁面温度監視
用温度計(温度検出手段)46とが取り付けられる。こ
れら各温度計45、46により検出されたエア温度と炉
壁温度とのデータは図示しない処理装置(制御手段)に
送出される。処理装置(図示せず)は、検出されたデー
タに基づいて図示しない制御装置により各バルブ32、
36、42を動作させるようになっている。In the cooling processing chamber 8, as shown in FIG. 2, an air temperature monitoring thermometer (temperature detecting means) 45 for detecting the temperature of the air and a furnace inner wall surface temperature monitor for detecting the temperature of the furnace inner wall surface. A thermometer (temperature detecting means) 46 is attached. The data of the air temperature and the furnace wall temperature detected by these thermometers 45 and 46 are sent to a processing device (control means) not shown. The processing device (not shown) controls each valve 32, by a control device (not shown) based on the detected data.
36 and 42 are operated.
【0021】この冷却部C内のエアは、次の4つのパタ
ーンで循環される。まず、(I)図3の(A)に示すよ
うに、切換バルブ32を切り換えて第1の区画室21と
第3の区画室23とを連通させ、開閉バルブ36と可変
バルブ42とを閉じて形成される加熱経路・第1の冷却
経路(経路C1のみ)と、(II)図3の(B)に示すよ
うに、切換バルブ32はそのままで第1の区画室21と
第3の区画室23とを連通させ、開閉バルブ36と可変
バルブ42とを開いて形成される第2の冷却経路(経路
C1+経路C3)と、(III)図3の(C)に示すよう
に、切換バルブ32を切り換えて第1の区画室21と第
2の区画室22とを連通させ、開閉バルブ36と可変バ
ルブ42とを開いて形成される第3の冷却経路(経路C
2+経路C3)と、(IV)図3の(D)に示すように、
切換バルブ32はそのままで第1の区画室21と第2の
区画室22とを連通させ、開閉バルブ36を開いて可変
バルブ42を閉じて形成される運転経路(経路C2の
み)との4つのパターンである。なお、外気取り込み時
であって前記第2の冷却経路(図3の(B)参照)を選
択した際、冷却処理室8を冷却部Cの排気用ファン(図
示しない)に連通させると、エアは冷却処理室8から外
部に逃げる。The air in the cooling section C is circulated in the following four patterns. First, (I) as shown in (A) of FIG. 3, the switching valve 32 is switched so that the first compartment 21 and the third compartment 23 communicate with each other, and the opening / closing valve 36 and the variable valve 42 are closed. The heating path and the first cooling path (only the path C1) formed by (II) and (II) as shown in FIG. A second cooling path (path C1 + path C3) formed by communicating the chamber 23 and opening the open / close valve 36 and the variable valve 42, and (III) a switching valve as shown in (C) of FIG. 32 is switched to connect the first compartment 21 and the second compartment 22 to each other, and the opening / closing valve 36 and the variable valve 42 are opened to form a third cooling path (path C).
2 + path C3) and (IV) as shown in FIG.
The switching valve 32 is left as it is and the first compartment 21 and the second compartment 22 are communicated with each other, and the opening / closing valve 36 is opened and the variable valve 42 is closed to form an operation path (only path C2). It is a pattern. It should be noted that when the second cooling path (see FIG. 3B) is selected during the intake of outside air and the cooling processing chamber 8 is connected to the exhaust fan (not shown) of the cooling section C, air is discharged. Escapes from the cooling processing chamber 8 to the outside.
【0022】次に、上記実施の形態に係る乾燥滅菌機の
動作について説明する。まず、冷却部Cの冷却処理部8
の乾燥滅菌を行う場合、図3の(A)に示すように、加
熱経路(経路C1のみ)を選択し、ヒータ16を動作さ
せて冷却部C内の温度を上昇させるとともに、循環ファ
ン10によりエアを循環させる(昇温工程)。温度計4
5、46により冷却部C内の温度が所定の温度(本実施
の形態の場合、例えば、熱風の温度をセ氏185度、炉
内壁面温度をセ氏170度以上とする。)に達したこと
を検出すると、加熱滅菌開始となり、所定の時間t1
(本実施の形態の場合、例えば、30分間)、加熱滅菌
が行われる(滅菌工程)。これら昇温工程および滅菌工
程の際には、熱交換器18はオフの状態となっている。
熱交換器18の配置された第2の区画室22は、炉壁3
3により区画されて開閉バルブ36も閉じているので、
他の区画室21、23が所定の加熱滅菌温度に達しても
セ氏100度未満に保持されるようになっている。Next, the operation of the dry sterilizer according to the above embodiment will be described. First, the cooling processing unit 8 of the cooling unit C
When performing the dry sterilization of No. 3, as shown in FIG. 3A, the heating path (only the path C1) is selected, the heater 16 is operated to raise the temperature in the cooling unit C, and the circulation fan 10 is used. Air is circulated (heating step). Thermometer 4
5 and 46, the temperature in the cooling section C has reached a predetermined temperature (in the case of the present embodiment, for example, the temperature of hot air is 185 degrees Celsius and the temperature of the wall surface inside the furnace is 170 degrees Celsius or higher). Upon detection, heat sterilization starts, and a predetermined time t1
Heat sterilization is performed (for example, 30 minutes in the case of the present embodiment) (sterilization step). During these temperature raising step and sterilization step, the heat exchanger 18 is in the off state.
The second compartment 22 in which the heat exchanger 18 is arranged is the furnace wall 3
Since it is divided by 3 and the on-off valve 36 is also closed,
Even if the other compartments 21 and 23 reach a predetermined heat sterilization temperature, the compartments are kept below 100 degrees Celsius.
【0023】所定の滅菌時間t1経過後、滅菌工程が終
了すると、冷却部C内を冷却する冷却工程(第1ないし
第3の冷却工程)が開始される。滅菌工程終了直後は冷
却部C内の温度がまだ高温状態であるため、第1の冷却
工程では、加熱経路(経路C1のみ)のままヒータ16
をオフにして、第1の冷却経路(図3の(A)参照)と
し、所定時間t2(本実施の形態の場合、例えば、20
分間)エアを循環させ、循環エアの温度をおよそセ氏1
40度から150度に低下させる。これは急激な温度変
化による耐熱フィルタ(HEPAフィルタ)14の損傷
を防ぐため、緩やかな冷却を図る目的で行う。When the sterilization step is completed after a predetermined sterilization time t1, a cooling step (first to third cooling steps) for cooling the inside of the cooling section C is started. Immediately after the end of the sterilization process, the temperature inside the cooling unit C is still high, so in the first cooling process, the heater 16 remains the heating path (only the path C1).
Is turned off to set a first cooling path (see FIG. 3A), and a predetermined time t2 (in the case of the present embodiment, for example, 20
Circulate the air for about 1 minute.
Reduce from 40 degrees to 150 degrees. This is performed for the purpose of gradual cooling in order to prevent the heat resistant filter (HEPA filter) 14 from being damaged by a rapid temperature change.
【0024】第1の冷却工程終了後、第2の冷却工程が
開始される。第2の冷却工程では、図3の(B)に示す
ように、第2の冷却経路(経路C1+経路C3)を選択
し、外気取り入れ口41から外気を取り入れるととも
に、冷却処理室8を図示しない排気ファンと連通させ、
エアを外部に排出する。この第2の冷却工程では、ヒー
タ16も熱交換器18もオフのままで、冷却処理室8を
通過するエアがセ氏100度以下になるまで続けられ、
セ氏100度以下に低下すると第2の冷却工程が終了す
る。After the completion of the first cooling process, the second cooling process is started. In the second cooling step, as shown in FIG. 3B, the second cooling path (path C1 + path C3) is selected, the outside air is taken in from the outside air intake 41, and the cooling processing chamber 8 is not shown. Communicate with the exhaust fan,
Exhaust air to the outside. In this second cooling step, the heater 16 and the heat exchanger 18 are both kept off until the air passing through the cooling processing chamber 8 becomes 100 degrees Celsius or less,
When the temperature drops below 100 degrees Celsius, the second cooling step ends.
【0025】次に第2の冷却工程終了後、第3の冷却工
程が開始される。第3の冷却工程では、図3の(C)に
示すように、第3の冷却経路(経路C2+経路C3)を
選択し、ヒータ16はオフのままで熱交換器18をオン
し、冷却処理室8と図示しない排気ファンとの連通を遮
断し、外気取り入れ口41から外気を取り入れる。この
第3の冷却工程では、エアは、第1の区画室21から第
2の区画室22を経由して第3の区画室23に達する循
環経路C2と外気取り入れ口41から第2の区画室22
を経由して第3の区画室23に達する合流経路C3に沿
って流れ、第2の区画室22を通過するエアは熱交換器
18により冷却されて循環ファン10に導かれる。この
第3の冷却工程は、循環エアの温度がセ氏100度以下
から、炉内壁の温度がセ氏60度以下に低下すると、終
了する。After completion of the second cooling step, the third cooling step is started. In the third cooling step, as shown in FIG. 3C, the third cooling path (path C2 + path C3) is selected, the heater 16 is turned off, the heat exchanger 18 is turned on, and the cooling process is performed. The communication between the chamber 8 and the exhaust fan (not shown) is cut off, and the outside air is taken in through the outside air intake 41. In this third cooling step, air flows from the first compartment 21 to the third compartment 23 via the second compartment 22 and the circulation path C2 from the outside air intake port 41 to the second compartment. 22
The air flowing along the merging path C3 that reaches the third compartment 23 via the second compartment 22 is cooled by the heat exchanger 18 and guided to the circulation fan 10. This third cooling step ends when the temperature of the circulating air falls below 100 degrees Celsius and the temperature of the inner wall of the furnace falls below 60 degrees Celsius.
【0026】次に、第3の冷却工程により、循環エアの
温度および炉内壁の温度が生産運転に適した冷却温度に
達すると、第3の冷却工程が終了し、冷却部C内の陽圧
を保持して生産運転を行う運転工程が開始される。運転
工程では、図3の(D)に示すように、運転経路(経路
C2のみ)を選択し、ヒータ16はオフ、熱交換器18
はオンのまま、冷却処理室8と図示しない排気ファンと
の連通を遮断し、外気取り入れ口41を閉じ、外気を取
り入れないようにする。この運転工程では、エアは、第
1の区画室21から第2の区画室22を経由して第3の
区画室23に達する循環経路C2にのみ沿って流れ、第
2の区画室22を通過するエアは熱交換器18により冷
却されて循環ファン10に導かれる。Next, when the temperature of the circulating air and the temperature of the inner wall of the furnace reach the cooling temperature suitable for the production operation by the third cooling step, the third cooling step is completed and the positive pressure in the cooling section C is finished. The operation process of holding the value and performing the production operation is started. In the operation process, as shown in FIG. 3D, the operation route (only route C2) is selected, the heater 16 is turned off, and the heat exchanger 18 is turned on.
Is kept on, the communication between the cooling processing chamber 8 and the exhaust fan (not shown) is cut off, the outside air intake 41 is closed, and the outside air is not taken in. In this operation process, the air flows only along the circulation path C2 that reaches the third compartment 23 from the first compartment 21 through the second compartment 22 and passes through the second compartment 22. The air to be cooled is cooled by the heat exchanger 18 and guided to the circulation fan 10.
【0027】運転工程では、図3の(D)に示すよう
に、運転経路(経路C2のみ)の状態から外気を調整し
て導入するようになっている。すなわち、ヒータ16は
オフ、熱交換器18はオンのまま、冷却処理室8と図示
しない排気ファンとの連通を遮断し、冷却部C内の陽圧
を保持するため、外気取り入れ口41の開口面積を可変
バルブ42により外気を調整して導入するようになって
いる。この運転工程では、熱交換器18により循環エア
の温度が所定の冷却温度に保持される。加熱部Aで乾燥
滅菌された容器(図示せず)が冷却部Cに搬入される
と、冷却処理室8で冷却される。容器は冷却された後下
流側の充填室(図示せず)に送られる。冷却部C内の陽
圧度の変化に応じて可変バルブ42が開度を調整して開
かれ、冷却部C内は常に適正な陽圧度に保たれるように
なっている。なお、図示しない排気ファンとの連通が遮
断されているため、エアは冷却処理室8から加熱部Aを
通って挿入部Bへ逃げるようになる。また、第3の冷却
工程終了後に、運転工程にすぐ入らず待機させる場合も
あり、その際には、熱交換器18をオフにして図3の
(B)に示すように、外気を取り入れるようにしてもよ
い。さらに、図3の(D)に示す運転工程に入る前に、
図3の(D)の状態のまま待機させる場合、熱交換器1
8は稼動させなければならない。In the operating process, as shown in FIG. 3D, the outside air is adjusted and introduced from the state of the operating route (only the route C2). That is, while the heater 16 is off and the heat exchanger 18 is on, the communication between the cooling processing chamber 8 and the exhaust fan (not shown) is cut off, and the positive pressure in the cooling portion C is maintained, so that the opening of the outside air intake 41 is opened. The outside air is adjusted and introduced by the variable valve 42. In this operation process, the heat exchanger 18 maintains the temperature of the circulating air at a predetermined cooling temperature. When a container (not shown) dried and sterilized in the heating unit A is carried into the cooling unit C, it is cooled in the cooling processing chamber 8. The container is cooled and then sent to a filling chamber (not shown) on the downstream side. The variable valve 42 is opened by adjusting the opening according to the change in the positive pressure inside the cooling section C, so that the inside of the cooling section C is always kept at an appropriate positive pressure. Since the communication with an exhaust fan (not shown) is cut off, the air escapes from the cooling processing chamber 8 to the insertion portion B through the heating portion A. In addition, after the completion of the third cooling process, there is a case where the operation process is not immediately entered and a standby is performed. In that case, the heat exchanger 18 is turned off to take in outside air as shown in FIG. 3 (B). You may Furthermore, before entering the operation process shown in FIG.
In the case of standing by in the state of (D) of FIG. 3, the heat exchanger 1
No. 8 must be activated.
【0028】このように、本実施の形態に係る乾燥滅菌
機では、冷却部Cにエアを加熱して乾燥滅菌するヒータ
16を設け、冷却処理室8から循環ファン10を結ぶ経
路にヒータ16と熱交換器18とを順に区画して配置す
るとともに、ヒータ16が配置された第1の区画室21
には、ヒータ16を通過したエアを熱交換器18または
循環ファン10のいずれか一方に切換える切換通路31
を設けたので、冷却部Cの冷却処理室8をヒータ16に
より加熱して乾燥滅菌する際、熱交換器18を加熱され
たエアから遮断させるようにすることができるので熱の
影響を受けにくい。このため、熱交換器18の冷媒を給
排水する必要がない。As described above, in the dry sterilizer according to the present embodiment, the cooling unit C is provided with the heater 16 for heating and drying and sterilizing the air, and the heater 16 is provided in the path connecting the cooling processing chamber 8 to the circulation fan 10. A first compartment 21 in which the heat exchanger 18 and the heater 16 are arranged in order
The switching passage 31 for switching the air passing through the heater 16 to either the heat exchanger 18 or the circulation fan 10.
Since the heat exchanger 18 is provided, the heat exchanger 18 can be cut off from the heated air when the cooling processing chamber 8 of the cooling unit C is heated by the heater 16 to be dried and sterilized, and thus is not easily affected by heat. . Therefore, it is not necessary to supply and drain the refrigerant in the heat exchanger 18.
【0029】また、本実施の形態に係る乾燥滅菌機で
は、循環ファン10と熱交換器18との間には、これら
の間を区画する炉壁33を設け、この炉壁33に両者1
0、18を連通可能に遮断する開閉バルブ36を設け、
熱交換器18が配置された第2の区画室22には、外気
を内部に導入する外気取り入れ口41とこの外気取り入
れ口41を開閉可能にかつ開口面積を可変に調整する可
変バルブ42とを設け、開閉バルブ36と可変バルブ4
2とを制御し、外気を循環するエアに調整可能に混合す
る制御装置(図示せず)を設けたので、加熱滅菌後の冷
却部C内を徐々にかつ速やかに冷却することができる。
このため、耐熱フィルタ(HEPAフィルタ)14に対
し激しい温度差の熱変化を与えることがなく、フィルタ
の損傷を防ぐことができる。また、外気取り入れ口41
の開口面積を可変に調整することができるので、外気の
取り込み量を任意に変化させることができる。このた
め、冷却部C内部の陽圧度の管理を容易に行うことがで
きる。Further, in the drying sterilizer according to the present embodiment, a furnace wall 33 is provided between the circulation fan 10 and the heat exchanger 18 to partition them, and the furnace wall 33 has both of them 1.
An opening / closing valve 36 for disconnecting 0 and 18 so that they can communicate with each other is provided,
In the second compartment 22 in which the heat exchanger 18 is arranged, an outside air intake 41 for introducing outside air and a variable valve 42 for opening / closing the outside air intake 41 and variably adjusting the opening area are provided. Provided, open / close valve 36 and variable valve 4
Since a control device (not shown) for controlling the air conditioner 2 and controlling the mixing of the outside air with the circulating air is provided, the inside of the cooling unit C after heat sterilization can be cooled gradually and quickly.
Therefore, the heat-resistant filter (HEPA filter) 14 is not subjected to a large thermal change due to a temperature difference, and damage to the filter can be prevented. Also, the outside air intake 41
Since the opening area of can be variably adjusted, the intake amount of outside air can be arbitrarily changed. Therefore, the positive pressure inside the cooling unit C can be easily controlled.
【0030】さらに、本実施の形態に係る乾燥滅菌機で
は、冷却処理室8に、冷却処理室8のエア温度を検出す
るエア温度監視用温度計45と炉内壁面温度監視用温度
計46とが取り付けられるとともに、検出されたエア温
度に基づいて、開閉バルブ36と可変バルブ42とのう
ち少なくともいずれか一方を選択して制御するようにし
たので、乾燥滅菌後、冷却工程に移ると、エア温度を監
視しながら、第1ないし第3の冷却工程への切り換えを
行うことができる。このため、検出温度に基づいて速や
かに次の工程(加熱工程、第1ないし第3の冷却工程、
運転工程)に切り換えることができる。このため、冷却
工程の時間を短縮することができる。Further, in the drying sterilizer according to the present embodiment, an air temperature monitoring thermometer 45 for detecting the air temperature in the cooling processing chamber 8 and a furnace inner wall surface temperature monitoring thermometer 46 are provided in the cooling processing chamber 8. Is attached, and at least one of the open / close valve 36 and the variable valve 42 is selected and controlled based on the detected air temperature. It is possible to switch to the first to third cooling steps while monitoring the temperature. Therefore, the next step (heating step, first to third cooling steps,
It is possible to switch to the operating process). Therefore, the time required for the cooling process can be shortened.
【0031】また、本実施の形態に係る乾燥滅菌機で
は、処理装置(図示せず)は、温度計45、46により
検出されたエア温度に基づき、第1の区画室21と第3
の区画室23とを連通させ、外気取り入れ口41と開閉
バルブ36とをそれぞれ閉じて形成される加熱経路(第
1の冷却経路)C1と、第1の区画室21と第3の区画
室23とを連通させ、外気取り入れ口41と開閉バルブ
36とをそれぞれ開いて形成される第2の冷却経路(C
1+C3)と、第1の区画室21と第2の区画室22と
を連通させ、外気取り入れ口41と開閉バルブ36とを
それぞれ開いて形成される第3の冷却経路(C2+C
3)と、第1の区画室21と第2の区画室22とを連通
させ、外気取り入れ口41を閉じ開閉バルブ36を開い
て形成される運転経路C2との4つの経路のうち所定の
経路を選択して切り換えるようにしているので、冷却工
程時、エアの循環経路と外部からのエアの取り込みとを
適宜切り換え、加熱後の高温のエアが熱交換器18を通
過しないようにすることができる。このため、熱交換器
18には冷媒の給排水設備を設ける必要がない。In the drying sterilizer according to the present embodiment, the processing device (not shown) has the first compartment 21 and the third compartment 21 based on the air temperature detected by the thermometers 45 and 46.
Of the heating chamber (first cooling route) C1, which is formed by communicating the compartment 23 with the outside air intake 41 and the opening / closing valve 36, respectively, and the first compartment 21 and the third compartment 23. And a second cooling path (C) formed by opening the outside air intake 41 and the opening / closing valve 36, respectively.
1 + C3), the first compartment 21 and the second compartment 22 are communicated with each other, and the outside air intake 41 and the opening / closing valve 36 are opened to form a third cooling path (C2 + C).
3) and the first compartment 21 and the second compartment 22 are communicated with each other, and the outside air intake 41 is closed and the opening / closing valve 36 is opened. Therefore, during the cooling process, it is possible to appropriately switch the air circulation path and the intake of air from the outside so that hot air after heating does not pass through the heat exchanger 18. it can. Therefore, the heat exchanger 18 does not need to be provided with a coolant supply / drainage facility.
【0032】なお、上記実施の形態では、加熱部Aの加
熱装置が1台、冷却部Cの送風浄化装置8、10、1
2、14が上下流側に2台それぞれ設置されているがこ
れに限られるものではなく、加熱部Aの加熱装置を2台
としてもよいし、冷却部Cの送風浄化装置を1台または
4台としてもよく、設計プランに応じて種々の組み合わ
せとしてもよいことはいうまでもない。また、図示しな
いが、挿入部B内は上部に送風ファンが下部に排気用の
ファンがそれぞれ設けられている。さらに、上記実施の
形態では、第1の冷却工程から第2の冷却工程に切り換
える場合、温度計45により循環するエアの温度がおよ
そセ氏140度から150度に低下したのを検知して行
うようにしているがこれに限られるものではなく、例え
ば、タイマーで行うようにしてもよい。また、上記実施
の形態では、第3の冷却工程で、外気を取り入れるよう
にしているがこれに限られるものではなく、エアが所定
の温度になると可変バルブ42を閉じ外気の取り入れを
停止するようにしてもよいし、可変バルブ42の開度を
徐々に下げ、外気の取り入れ量を徐々に少なくなるよう
にしてもよい。In the above embodiment, the heating unit A has one heating device, and the cooling unit C has the blast purification devices 8, 10 and 1.
Although two units 2 and 14 are installed on the upstream and downstream sides, respectively, the number is not limited to this, and the heating unit A may have two heating devices, or the cooling unit C may have one or four blast purification devices. Needless to say, it may be a stand or various combinations depending on the design plan. Further, although not shown, inside the insertion portion B, a blower fan is provided at an upper portion and an exhaust fan is provided at a lower portion. Further, in the above embodiment, when the first cooling process is switched to the second cooling process, the thermometer 45 detects that the temperature of the circulating air has dropped from about 140 degrees Celsius to 150 degrees Celsius. However, the present invention is not limited to this. For example, a timer may be used. Further, in the above embodiment, the outside air is taken in in the third cooling step, but the present invention is not limited to this, and the variable valve 42 is closed and the intake of outside air is stopped when the air reaches a predetermined temperature. Alternatively, the opening degree of the variable valve 42 may be gradually reduced to gradually reduce the intake amount of outside air.
【0033】[0033]
【発明の効果】以上説明したように本発明によれば、搬
入される物品を加熱して乾燥滅菌を行う加熱部と、この
加熱部から搬送される加熱された物品を冷却する冷却部
とを備えた乾燥滅菌機において、冷却部には、エアを冷
却する熱交換器と、エアをフィルタを介して冷却処理室
に送り循環させるファンとを設けるとともに、エアを加
熱して乾燥滅菌を行う加熱手段を設け、冷却処理室から
熱交換器を経由してファンに到る経路と冷却処理室から
熱交換器を迂回してファンに到る経路とに切換可能な切
換手段を設けたことにより、冷却部の加熱後、熱交換器
に高温のエアを通過させないようにすることができるの
で、熱交換器の冷媒の給排水が不要となり作業効率が向
上するとともに設備の簡素化を図ることができる。As described above, according to the present invention, the heating section for heating the carried-in article to dry and sterilize it and the cooling section for cooling the heated article conveyed from the heating section are provided. In the provided dry sterilizer, the cooling unit is provided with a heat exchanger that cools air and a fan that circulates the air through the filter to the cooling treatment chamber, and heats the air to perform dry sterilization. By providing means, by providing a switching means capable of switching between a path from the cooling processing chamber to the fan via the heat exchanger and a path from the cooling processing chamber to the fan bypassing the heat exchanger and reaching the fan, Since it is possible to prevent hot air from passing through the heat exchanger after heating the cooling unit, it is not necessary to supply and drain the refrigerant in the heat exchanger, which improves working efficiency and simplifies the equipment.
【0034】また、請求項2に係る乾燥滅菌機によれ
ば、冷却部には、外気を取り入れ可能な外気取り入れ手
段を設けたことにより、冷却部内に外気を取り込むこと
ができるので、加熱後の冷却部内を徐々にかつ短時間で
冷却することができる。このため、フィルタに激しい温
度差を与えることがなく、フィルタの長寿命化を図る効
果がある。Further, according to the dry sterilizer of the second aspect, since the cooling section is provided with the outside air intake means capable of taking in the outside air, the outside air can be taken into the cooling section, so that after the heating. The inside of the cooling unit can be cooled gradually and in a short time. Therefore, there is an effect of prolonging the life of the filter without giving a severe temperature difference to the filter.
【図1】本発明の一実施の形態に係る乾燥滅菌機の一部
破断側面図である。FIG. 1 is a partially cutaway side view of a drying sterilizer according to an embodiment of the present invention.
【図2】図1のII−II線に沿う断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図3】(A)ないし(D)はそれぞれ加熱工程から冷
却工程を経て運転工程に到る工程毎のエアの流れを示す
説明図である。3 (A) to 3 (D) are explanatory views showing the flow of air in each step from the heating step to the cooling step to the operation step.
A 加熱部 C 冷却部 8 冷却処理室 10 循環ファン(ファン) 14 耐熱フィルタ(フィルタ) 16 ヒータ(加熱手段) 18 熱交換器 31 切換通路(切換手段) 32 切換バルブ(切換手段) A heating section C cooling unit 8 Cooling chamber 10 Circulation fan (fan) 14 Heat-resistant filter (filter) 16 Heater (heating means) 18 heat exchanger 31 Switching passage (switching means) 32 Switching valve (switching means)
Claims (4)
う加熱部と、この加熱部から搬送される加熱された物品
を冷却する冷却部とを備えた乾燥滅菌機において、 冷却部には、エアを冷却する熱交換器と、エアをフィル
タを介して冷却処理室に送り循環させるファンとを設け
るとともに、エアを加熱して乾燥滅菌を行う加熱手段を
設け、冷却処理室から熱交換器を経由してファンに到る
経路と冷却処理室から熱交換器を迂回してファンに到る
経路とに切換可能な切換手段を設けたことを特徴とする
乾燥滅菌機。1. A drying sterilizer provided with a heating section for heating articles to be carried in to perform dry sterilization, and a cooling section for cooling heated articles conveyed from the heating section. A heat exchanger for cooling the air and a fan for sending the air through the filter to the cooling processing chamber for circulation, and a heating means for heating the air for dry sterilization. The drying sterilizer is provided with a switching means capable of switching between a path reaching the fan via the heat exchanger and a path bypassing the heat exchanger from the cooling processing chamber to reach the fan.
取り入れ手段を設けたことを特徴とする乾燥滅菌機。2. A drying sterilizer characterized in that the cooling section is provided with an outside air intake means capable of taking in outside air.
を検出する温度検出手段を設けるとともに、検出された
エア温度に基づいて、切換手段と取り入れ手段とのうち
少なくともいずれか一方を選択して制御する制御手段を
設けたことを特徴とする請求項2に記載の乾燥滅菌機。3. The cooling processing chamber is provided with temperature detecting means for detecting the air temperature of the cooling processing chamber, and at least one of the switching means and the intake means is selected based on the detected air temperature. The drying sterilizer according to claim 2, further comprising control means for controlling the temperature.
処理室から熱交換器を迂回させてファンに到る経路に切
り換え、加熱手段を動作させ外気を取り入れないで形成
される加熱経路と、この加熱経路と同一の経路で加熱手
段の動作が停止される第1の冷却経路と、前記切換手段
により熱交換器を迂回させてファンに到る経路に切り換
えたまま、加熱手段が非動作状態で前記取り入れ手段に
より外気を取り入れて形成される第2の冷却経路と、前
記切換手段を動作させて冷却処理室から熱交換器を経由
させてファンに到る経路に切り換え、前記加熱手段を非
動作状態のまま外気を取り入れて形成される第3の冷却
経路との各経路を選択して切り換えるようにしたことを
特徴とする請求項3に記載の乾燥滅菌機。4. The control means operates a switching means to switch from a cooling processing chamber to a path reaching a fan by bypassing a heat exchanger, and to operate a heating means to form a heating path formed without taking in outside air. , The first cooling path in which the operation of the heating means is stopped in the same path as this heating path and the path to reach the fan by bypassing the heat exchanger by the switching means are kept inactive by the heating means. In this state, a second cooling path formed by taking in the outside air by the intake means and a path from the cooling processing chamber to the fan via the heat exchanger by operating the switching means are switched to the heating means. The dry sterilizer according to claim 3, wherein each of the third cooling path and the third cooling path formed by taking in outside air in the non-operating state is selected and switched.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002152418A JP3797275B2 (en) | 2002-05-27 | 2002-05-27 | Dry sterilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002152418A JP3797275B2 (en) | 2002-05-27 | 2002-05-27 | Dry sterilizer |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003339827A true JP2003339827A (en) | 2003-12-02 |
JP3797275B2 JP3797275B2 (en) | 2006-07-12 |
Family
ID=29769756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002152418A Expired - Fee Related JP3797275B2 (en) | 2002-05-27 | 2002-05-27 | Dry sterilizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3797275B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111633463A (en) * | 2020-06-16 | 2020-09-08 | 惠州市利盈五金制品有限公司 | High accuracy CNC four-axis machining center |
-
2002
- 2002-05-27 JP JP2002152418A patent/JP3797275B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111633463A (en) * | 2020-06-16 | 2020-09-08 | 惠州市利盈五金制品有限公司 | High accuracy CNC four-axis machining center |
Also Published As
Publication number | Publication date |
---|---|
JP3797275B2 (en) | 2006-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5022165A (en) | Sterilization tunnel | |
JP4529593B2 (en) | Isolator system | |
JP5380439B2 (en) | Temperature controlled storage unit | |
KR950021004A (en) | Heat treatment equipment | |
JP6533775B2 (en) | Dry heat sterilizer | |
EP1841654B1 (en) | Unit for sterilising and depyrogenating containers | |
JP3592720B2 (en) | Apparatus and method for continuously cooling food | |
JP2003339827A (en) | Drying and sterilizing machine | |
JPH1170920A (en) | Apparatus for sterilizing, filling and closing container | |
JP2002262839A (en) | Cooling system of thermal sterilizing apparatus | |
JP2003081405A (en) | Purified air circulation type storage equipment | |
KR20090044325A (en) | Koji manufacturing apparatus and manufacturing method thereof | |
JP4194175B2 (en) | Refrigerator operation control method | |
JP3241142U (en) | Sterilization drying equipment | |
JP2006021798A (en) | Heating and sterilizing apparatus | |
JP5930392B2 (en) | Sterilizer | |
JPH10288442A (en) | Continuous cooling device for article | |
KR102154540B1 (en) | Hybrid cold and hot air combined drying equipment | |
JPS6118429A (en) | Pressurized apparatus provided with energy conservation tank | |
JP3074248U (en) | Tableware disinfection storage device | |
KR20240051746A (en) | Drying apparatus | |
JP3085853U (en) | Draining device, device for drying attached water, device for drying attached water, cooling air device and drying device for retort pack composed of them in drying process of attached water after heat treatment of retort pack | |
JPS62228835A (en) | Hot water circulating and heating device | |
JP2023137256A (en) | Refrigerant circuit device | |
JP4055677B2 (en) | Food machinery |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040929 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20051216 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060104 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060228 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060328 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060410 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 3797275 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090428 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100428 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110428 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110428 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120428 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120428 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130428 Year of fee payment: 7 |
|
LAPS | Cancellation because of no payment of annual fees |