JPH034826B2 - - Google Patents
Info
- Publication number
- JPH034826B2 JPH034826B2 JP57215735A JP21573582A JPH034826B2 JP H034826 B2 JPH034826 B2 JP H034826B2 JP 57215735 A JP57215735 A JP 57215735A JP 21573582 A JP21573582 A JP 21573582A JP H034826 B2 JPH034826 B2 JP H034826B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- ice
- cooling cylinder
- storage tank
- drain valve
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 91
- 238000001816 cooling Methods 0.000 claims description 32
- 238000001514 detection method Methods 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 9
- 239000012535 impurity Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Description
【発明の詳細な説明】
(イ) 発明の分野
本発明はオーガー式製氷機に関し、特に、排水
弁を開いて冷却円筒内下部に析出したカルシウム
やマグネシウム等の不純物を排水管から排水しな
がら新しい水と置換せしめて冷却円筒内部の洗浄
を行なうオーガー式製氷機の改良に関する。[Detailed Description of the Invention] (a) Field of the Invention The present invention relates to an auger-type ice maker, and in particular, the present invention relates to an auger-type ice maker, and in particular, the drain valve is opened to drain impurities such as calcium and magnesium deposited in the lower part of the cooling cylinder from the drain pipe. This invention relates to an improvement of an auger-type ice maker that cleans the inside of a cooling cylinder by displacing water.
(ロ) 従来技術及びその問題点
一般に、この種の製氷機を長期間運転している
と、冷却円筒内に適宜供給された水に含まれるカ
ルシウムやマグネシウム等の不純物が冷却円筒内
下部に徐々に析出されることが知られている。(b) Prior art and its problems In general, when this type of ice maker is operated for a long period of time, impurities such as calcium and magnesium contained in the water appropriately supplied to the cooling cylinder gradually move to the lower part of the cooling cylinder. It is known that it is precipitated in
従来、これに対処するために排水弁を開いて冷
却円筒内の水を排水し、貯水タンク内の新しい水
と置換する洗浄動作を行なつているが、給水量に
比較して排水量が極めて多かつたり、或いは排水
中に貯水タンクへの給水が停止する断水時におい
ては貯水タンクの水位が減少し、遂には空となつ
て冷却円筒内に空気が流入するに至る。 Conventionally, to deal with this, a cleaning operation was performed in which the water in the cooling cylinder was drained by opening the drain valve and replaced with fresh water in the water storage tank, but the amount of water drained was extremely large compared to the amount of water supplied. In the event of a water outage, or when the water supply to the water storage tank is stopped during drainage, the water level in the water storage tank decreases and eventually becomes empty, allowing air to flow into the cooling cylinder.
この状態で、排水を終了し、或いは断水が解除
されて製氷運転を再開すると冷却円筒内に空気だ
まりが生じて過冷却となり、正常な製氷運転が継
続できなくなる重大な欠点を招いていた。 In this state, when the water drain is finished or the water cut-off is lifted and the ice-making operation is restarted, an air pocket is generated in the cooling cylinder, resulting in supercooling, which causes a serious drawback that normal ice-making operation cannot be continued.
また、冷却円筒の給水レベルを貯水タンクの水
位で決定しているために貯水タンクが空になつた
状態で製氷運転を行なつていると、これまた過冷
却状態を招くに至つていた。 Furthermore, since the water supply level to the cooling cylinder is determined by the water level in the water storage tank, if ice making operation is performed with the water storage tank empty, this also leads to overcooling.
(ハ) 発明の目的
本発明は冷却円筒内下部への不純物析出を防止
するために、周期的且つ自動的に排水弁を開いて
冷却円筒内部を効果的に洗浄するものであつて、
貯水タンクの水位が所定の下限レベルまで低下し
たときには、排水弁を停止して冷却円筒内への空
気侵入を防止するとともに製氷運転を停止して過
冷却の要因を除去し、常時、正常な製氷運転を挙
行するオーガー式製氷機を提供する。(c) Purpose of the Invention The present invention effectively cleans the inside of the cooling cylinder by periodically and automatically opening the drain valve in order to prevent impurity precipitation in the lower part of the cooling cylinder.
When the water level in the water storage tank drops to a predetermined lower limit level, the drain valve is stopped to prevent air from entering the cooling cylinder, and the ice making operation is stopped to eliminate the cause of overcooling, ensuring normal ice making at all times. Provides an auger-type ice maker with easy operation.
(ニ) 発明の実施例
第１図は本発明を実施するオーガー式製氷機の
概要を示すシステム図であり、１は電動圧縮機２
及び電動送風機３によつて強制空冷される凝縮器
４等とともに冷媒回路を形成する冷媒パイプ５を
外面に巻回した冷却円筒であり、該円筒１の内部
には削氷用オーガー６が上部軸受７と下部軸受８
によつて回転可能に支持されている。オーガー６
は減速機９を介してオーガーモーター１０に連結
され、冷却円筒１の内壁に生成した氷はオーガー
６によつて削取された後、前記上部軸受７の外周
に複数形成された圧縮通路１１に向けて移送さ
れ、ここで圧縮された氷は冷却円筒１の上部に接
続された導出管１２を介して貯氷庫１３に送出さ
れる。１４は貯氷庫１３内の所定氷量を検出する
貯氷量検出装置で、温度式のものを採用してい
る。１５は冷却円筒１の給水レベルを決定する貯
水タンクで、該タンク１５の底部と冷却円筒１の
下部を給水管１６によつて接続している。１７は
貯水タンク１５に給水する外部給水管で、貯水タ
ンク１５の水位を検出する水位検出装置１８によ
つて制御される給水弁１９を接続している。水位
検出装置１８は例えば水位の変動により浮沈する
磁石内蔵フロート１８Ａによつて管内のリードス
イツチを開閉するフロート式を採用しており、上
位リードスイツチ１８Ｂは前記給水弁１９を制御
し、下位リードスイツチ１８Ｃは断水検出用とし
て利用される。２０は冷却円筒１内部の洗浄用排
水管で、冷却円筒１の下部に接続され、排水弁２
１を開くことによつて冷却円筒１内の水を排水す
るものである。(d) Embodiments of the invention FIG. 1 is a system diagram showing an outline of an auger ice maker embodying the present invention, and 1 is an electric compressor 2.
It is a cooling cylinder with a refrigerant pipe 5 wound around its outer surface, which forms a refrigerant circuit together with a condenser 4 and the like that are forcedly air-cooled by an electric blower 3. Inside the cylinder 1, an ice-shaving auger 6 is mounted on an upper bearing. 7 and lower bearing 8
is rotatably supported by. Auger 6
is connected to an auger motor 10 via a speed reducer 9, and the ice formed on the inner wall of the cooling cylinder 1 is scraped off by the auger 6 and then transferred to the compression passages 11 formed in plurality on the outer periphery of the upper bearing 7. The compressed ice is sent to the ice storage 13 via a discharge pipe 12 connected to the upper part of the cooling cylinder 1. Reference numeral 14 denotes an ice storage amount detection device for detecting a predetermined amount of ice in the ice storage 13, which is of a temperature type. A water storage tank 15 determines the water supply level of the cooling cylinder 1, and the bottom of the tank 15 and the lower part of the cooling cylinder 1 are connected by a water supply pipe 16. 17 is an external water supply pipe that supplies water to the water storage tank 15, and is connected to a water supply valve 19 that is controlled by a water level detection device 18 that detects the water level of the water storage tank 15. The water level detection device 18 adopts a float type in which a reed switch in the pipe is opened and closed by a float 18A with a built-in magnet that rises and falls depending on changes in the water level, and the upper reed switch 18B controls the water supply valve 19, and the lower reed switch 18C is used for detecting water outage. 20 is a drain pipe for cleaning inside the cooling cylinder 1, which is connected to the lower part of the cooling cylinder 1 and has a drain valve 2.
By opening 1, water in the cooling cylinder 1 is drained.
次に、本発明の電気回路を第２図に基づき説明
する。２２は電源スイツチ、２３は前記上位リー
ドスイツチ１８Ｂと直列に接続された第１リレー
で、常閉を第１リレー接点２３Ａ及び２３Ｂを有
する。２４は前記下位リードスイツチ１８Ｃと直
列に接続された第２リレーで、常閉の第２リレー
接点２４Ａ及び常閉の第２リレー接点２４Ｂを有
する。１９は常閉の第１リレー接点２３Ｂと直列
に接続された前記給水弁、１４Ａは前記貯氷量検
出装置１４が貯氷庫１３の所定氷量を検出したと
き接点を開路する貯氷スイツチで、該スイツチ１
４Ａと直列に、常開の第３リレー接点２５Ａを有
する第３リレー２５、周期的にタイマー接点２６
Ａを所定時間閉路せしめるカム式タイマー２６、
そして、前記排水弁２１が接続されている。ま
た、常開の第３リレー接点２５Ａと直列に、前記
オーガーモーター１０、前記送風機３、そして、
前記電動圧縮機２が接続されている。 Next, the electric circuit of the present invention will be explained based on FIG. 22 is a power switch, 23 is a first relay connected in series with the upper reed switch 18B, and has normally closed first relay contacts 23A and 23B. A second relay 24 is connected in series with the lower reed switch 18C, and has a normally closed second relay contact 24A and a normally closed second relay contact 24B. 19 is the water supply valve connected in series with the normally closed first relay contact 23B; 14A is the ice storage switch which opens the contact when the ice storage amount detection device 14 detects a predetermined amount of ice in the ice storage 13; 1
In series with 4A, a third relay 25 with a normally open third relay contact 25A, periodically a timer contact 26
a cam-type timer 26 that closes A for a predetermined time;
Then, the drain valve 21 is connected. Further, in series with the normally open third relay contact 25A, the auger motor 10, the blower 3, and
The electric compressor 2 is connected.
次に、製氷動作も含めた本発明の洗浄動作を説
明する。電源スイツチ２２を投入すると、貯水タ
ンク１５が空であれば、第１リレー２３が励磁さ
れないために常閉の第１リレー接点２３Ｂを介し
て通電する給水弁１９を開いて貯水タンク１５に
給水する。このとき、下位リードスイツチ１８Ｃ
が閉路しているために第２リレー２４が励磁し、
常閉の第２リレー接点２４Ｂが開路され、第３リ
レー２５が非励磁状態で、常開の第３リレー接点
２５Ａが開路していることからオーガーモーター
１０、送風機３及び圧縮機２は動作しない。 Next, the cleaning operation of the present invention including the ice making operation will be explained. When the power switch 22 is turned on, if the water storage tank 15 is empty, the first relay 23 is not energized, so the water supply valve 19, which is energized via the normally closed first relay contact 23B, is opened to supply water to the water storage tank 15. . At this time, the lower reed switch 18C
is closed, so the second relay 24 is energized,
Since the normally closed second relay contact 24B is open, the third relay 25 is in a de-energized state, and the normally open third relay contact 25A is open, the auger motor 10, blower 3, and compressor 2 do not operate. .
而して、貯水タンク１５の所定水位に給水され
ると上位リードスイツチ１８Ｂが閉路して第１リ
レー２３が励磁し、常閉の第１リレー接点２３Ａ
及び２３Ｂを開路する。これによつて給水弁１９
が閉じて給水を停止し、一方では第２リレー２４
の励磁が解除されて常閉の第２リレー接点２４Ｂ
を閉路し、第３リレー２５が励磁されるため常開
の第３リレー接点２５Ａを閉路してオーガーモー
ター１０、送風機３及び圧縮機２を動作して製氷
運転を開始する。同時に、タイマー２６が始動す
る。なお、冷却円筒１内の給水レベルは貯水タン
ク１５の水位上昇に伴なつて増加し、最終的には
貯水タンク１５の所定レベルに制御される。 When water is supplied to a predetermined water level in the water storage tank 15, the upper reed switch 18B is closed, the first relay 23 is energized, and the normally closed first relay contact 23A is closed.
and 23B are opened. As a result, the water supply valve 19
closes to stop the water supply, while the second relay 24
The second relay contact 24B is de-energized and is normally closed.
Since the third relay 25 is excited, the normally open third relay contact 25A is closed and the auger motor 10, blower 3, and compressor 2 are operated to start ice-making operation. At the same time, timer 26 is started. Note that the water supply level in the cooling cylinder 1 increases as the water level of the water storage tank 15 rises, and is eventually controlled to a predetermined level of the water storage tank 15.
以上の様に、製氷運転が開始すると、冷却円筒
１の内壁に生成した氷はオーガー６の回転によつ
て削取されて圧縮通路１１へ移送され、ここで圧
縮された氷は導出管１２を通つて貯氷庫１３へ連
続的に送出されていく。 As described above, when the ice-making operation starts, the ice generated on the inner wall of the cooling cylinder 1 is scraped off by the rotation of the auger 6 and transferred to the compression passage 11, where the compressed ice passes through the outlet pipe 12. The ice is continuously sent to the ice storage 13.
而して、前記タイマー２６の始動から所定時間
経過すると、タイマー接点２６Ａが閉じて排水弁
２１に通電し、排水弁２１を開いて冷却円筒１内
下部において不純物濃度の高くなつた製氷用水を
排水管２０から外部へ排水しながら、貯水タンク
１５より給水管１６を介して冷却円筒１に新しい
水を供給することによつて、製氷用水の置換を行
なつて冷却円筒１内を洗浄する。 When a predetermined period of time has elapsed since the start of the timer 26, the timer contact 26A closes, energizes the drain valve 21, and opens the drain valve 21 to drain the ice-making water with high impurity concentration in the lower part of the cooling cylinder 1. By supplying new water from the water storage tank 15 to the cooling cylinder 1 through the water supply pipe 16 while draining water to the outside from the pipe 20, ice-making water is replaced and the inside of the cooling cylinder 1 is cleaned.
この様に、洗浄動作が開始されると、貯水タン
ク１５の水位が減少して上位リードスイツチ１８
Ａが開始し、第１リレー２３の励磁が解除されて
常閉の第１リレー接点２３Ａ及び２３Ｂが閉路す
るため給水弁１９が開いて外部給水管１７から貯
水タンク１５に水を補給し、貯水タンク１５の水
位を所定の上位レベルに維持しようとする。 In this way, when the cleaning operation is started, the water level in the water storage tank 15 decreases and the upper reed switch 18
A starts, the excitation of the first relay 23 is released, and the normally closed first relay contacts 23A and 23B are closed, so the water supply valve 19 opens and water is replenished from the external water supply pipe 17 to the water storage tank 15, and the water is stored. An attempt is made to maintain the water level in the tank 15 at a predetermined upper level.
しかし、このときの貯水タンク１５への給水量
よりも排水管２０からの排水量が多いと、貯水タ
ンク１５の水位は減少の一途をたどり、遂には下
位レベルまで低下する。水位検出装置１８はこの
下位レベルを検出して下位リードスイツチ１８Ｃ
が閉路せしめ、このとき、常閉の第１リレー接点
２３Ａが閉路していることから第２リレー２４が
励磁し、常閉の第２リレー接点２４Ｂを開路せし
める。これによつて、タイマー２６への通電を断
つとともにタイマー接点２６Ａが閉じていても排
水弁２１を閉じて洗浄を停止する。 However, if the amount of water discharged from the drain pipe 20 is greater than the amount of water supplied to the water storage tank 15 at this time, the water level of the water storage tank 15 will continue to decrease, eventually dropping to a lower level. The water level detection device 18 detects this lower level and switches the lower reed switch 18C.
is closed, and at this time, since the normally closed first relay contact 23A is closed, the second relay 24 is energized, causing the normally closed second relay contact 24B to open. As a result, the power supply to the timer 26 is cut off, and even if the timer contact 26A is closed, the drain valve 21 is closed and cleaning is stopped.
また、貯水タンク１５への給水量よりも排水量
が少なく、貯水タンク１５の水位を所定の上位レ
ベルに維持できる構成であつても、例えば、洗浄
中に断水をおこしたようなときは貯水タンク１５
の水位が急速に下位レベルまで低下し、前述と同
様にして洗浄を停止する。 Furthermore, even if the amount of water discharged is smaller than the amount of water supplied to the water storage tank 15 and the water level of the water storage tank 15 can be maintained at a predetermined upper level, for example, if water is cut off during cleaning, the water storage tank 15
The water level quickly drops to the lower level and cleaning is stopped in the same way as before.
一方、貯水タンク１５の水位が下位レベルまで
低下して洗浄を停止するのと同時に、第３リレー
２５の励磁が解除されて常開の第３リレー接点２
５Ａが開路するため、オーガーモーター１０、電
動送風機３及び電動圧縮機２への通電が断たれ、
製氷運転も停止する。 On the other hand, at the same time that the water level in the water storage tank 15 drops to a lower level and cleaning is stopped, the third relay 25 is de-energized and the third relay contact 2 is kept open.
5A is opened, power to the auger motor 10, electric blower 3, and electric compressor 2 is cut off.
Ice making operation will also be stopped.
而して、貯水タンク１５の水位が再び所定の上
位レベルに上昇して上位リードスイツチ１８Ｂが
閉じれば製氷運転を再開する。 Then, when the water level in the water storage tank 15 rises again to the predetermined upper level and the upper reed switch 18B is closed, the ice making operation is resumed.
(ホ) 発明の効果
本発明は以上の様に、タイマーによつて周期的
に所定時間、排水弁を開いて冷却円筒内の水を排
水管から排水しながら貯水タンク内の新しい水と
置換させることによつて、冷却円筒内を効果的に
洗浄し、以つて、冷却円筒内下部への不純物の析
出を防止でき、しかも、洗浄中に貯水タンクの水
位が所定の下限レベルに低下したときは、排水弁
を閉じて冷却円筒内への空気侵入を防止するとと
もに製氷運転を停止するため過冷却状態を引き起
こす心配がなくなり、常時、正常な製氷運転を挙
行することができる。(E) Effects of the Invention As described above, the present invention uses a timer to periodically open the drain valve for a predetermined period of time to drain the water in the cooling cylinder from the drain pipe and replace it with fresh water in the water storage tank. This makes it possible to effectively clean the inside of the cooling cylinder and prevent the precipitation of impurities in the lower part of the cooling cylinder.Moreover, when the water level in the water storage tank drops to a predetermined lower limit level during cleaning, Since the drain valve is closed to prevent air from entering the cooling cylinder and the ice-making operation is stopped, there is no need to worry about overcooling, and normal ice-making operation can be carried out at all times.
第１図は本発明のオーガー式製氷機のシステム
図、第２図は同じく電気回路図である。
１……冷却円筒、２……電動圧縮機、１５……
貯水タンク、１８……水位検出装置、１８Ｃ……
下位リードスイツチ、２０……排水管、２１……
排水弁、２６……タイマー、２６Ａ……タイマー
接点。
FIG. 1 is a system diagram of an auger ice maker according to the present invention, and FIG. 2 is an electric circuit diagram thereof. 1... Cooling cylinder, 2... Electric compressor, 15...
Water storage tank, 18 ...Water level detection device, 18C...
Lower reed switch, 20... Drain pipe, 21...
Drain valve, 26 ...timer, 26A...timer contact.
Claims (1)
通る通路を形成した冷却円筒と、該円筒の下部
に、貯水タンクに適宜給水された水を円筒内に供
給する給水管及び排水弁を介在した排水弁を連通
し、冷却円筒内には円筒内壁に生成した氷を削取
して上方に移送するオーガーを回転可能に配設し
て成るオーガー式製氷機において、前記排水弁を
周期的に所定時間動作せしめるタイマー装置と、
前記排水弁の動作中に前記貯水タンクの水位が下
限レベルに低下したとき、これを検出して前記電
動圧縮機及び排水弁の動作を停止せしめる水位検
出装置を設けた事を特徴とするオーガー式製氷
機。1. A cooling cylinder with a passage formed on its outer surface for the refrigerant to be pumped by an electric compressor, and a water supply pipe and a drain valve for supplying water appropriately supplied to a water storage tank into the cylinder at the bottom of the cylinder. In an auger-type ice maker, the drain valve is connected to the cooling cylinder, and an auger is rotatably disposed in the cooling cylinder to scrape off ice formed on the inner wall of the cylinder and transfer it upward. a timer device that operates for a predetermined time;
The auger type is characterized by being provided with a water level detection device that detects when the water level of the water storage tank drops to a lower limit level during operation of the drain valve and stops the operation of the electric compressor and the drain valve. Ice machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57215735A JPS59107171A (en) | 1982-12-08 | 1982-12-08 | Auger type ice machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57215735A JPS59107171A (en) | 1982-12-08 | 1982-12-08 | Auger type ice machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59107171A JPS59107171A (en) | 1984-06-21 |
| JPH034826B2 true JPH034826B2 (en) | 1991-01-24 |
Family
ID=16677322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57215735A Granted JPS59107171A (en) | 1982-12-08 | 1982-12-08 | Auger type ice machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59107171A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014224641A (en) * | 2013-05-16 | 2014-12-04 | ホシザキ電機株式会社 | Ice-making machine |
| JP2015087050A (en) * | 2013-10-30 | 2015-05-07 | ホシザキ電機株式会社 | Ice machine |
-
1982
- 1982-12-08 JP JP57215735A patent/JPS59107171A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59107171A (en) | 1984-06-21 |
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