JPH0638732B2 - Method for controlling steam generation in tea making boiler - Google Patents
Method for controlling steam generation in tea making boilerInfo
- Publication number
- JPH0638732B2 JPH0638732B2 JP11307686A JP11307686A JPH0638732B2 JP H0638732 B2 JPH0638732 B2 JP H0638732B2 JP 11307686 A JP11307686 A JP 11307686A JP 11307686 A JP11307686 A JP 11307686A JP H0638732 B2 JPH0638732 B2 JP H0638732B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- steam
- boiler
- steam generation
- tea making
- 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
- 238000000034 method Methods 0.000 title claims description 7
- 241001122767 Theaceae Species 0.000 title claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 3
- 244000269722 Thea sinensis Species 0.000 description 15
- 235000013616 tea Nutrition 0.000 description 14
- 239000000446 fuel Substances 0.000 description 6
- 238000004898 kneading Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000009569 green tea Nutrition 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Tea And Coffee (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は製茶用ボイラーにおける蒸気発生量を制御する
方法に関し、特にボイラーに供給される水の量を検知し
て、この水の供給量が所定の値になるようにバーナーの
発熱量を調節するようにしたことを特徴とするものであ
る。Description: TECHNICAL FIELD The present invention relates to a method for controlling the amount of steam generated in a tea making boiler, and more particularly to detecting the amount of water supplied to the boiler, It is characterized in that the calorific value of the burner is adjusted to a predetermined value.
（従来の技術） 茶園から摘採した生茶葉は、先ず蒸機を用いて蒸し、次
いで粗揉、揉捻、中揉、精揉の順に処理を加えて荒茶に
する。これらの処理工程のうち、蒸し工程は処理条件の
適否、殊に蒸気の供給量の適否が製品緑茶の品質に最も
影響を及ぼす重大な工程であって、蒸気の供給量が多過
ぎても少な過ぎても茶の香りや水色、或いは味等が下が
るのである。処理対象とされる生茶葉は茶の新芽の部分
に限られているので、これを摘採する際の生茶葉の成育
度や天候、摘採する時期の成育場所等によって葉の肉厚
や硬軟等に微妙な差異があるため、従来から蒸気の供給
管には流量計が取付けられていて、これで蒸気の流量を
検知し、その検知出力に応じてバルブを開閉する方策が
とられていた。しかしながら、製茶用ボイラーは通常の
ボイラーに比べて缶内の蒸気の圧力が極めて低くて殆ど
常圧に近い圧力であり、しかも蒸気の供給量も少ないた
め、流量計の相対誤差が大きくて、蒸気の流量を精確に
調節し、且つその流量を一定に保つことは出来なかっ
た。そのため従来は、生茶葉の蒸し加減を見ながら、手
動でバルブを開閉する手法を併用せざるを得なかったの
である。(Prior Art) Raw tea leaves picked from a tea garden are first steamed using a steamer, and then rough kneading, kneading, middle kneading, and fine kneading are performed in this order to make rough tea. Among these treatment processes, the steaming process is a critical process in which the suitability of the treatment conditions, particularly the supply amount of steam, has the greatest influence on the quality of the product green tea. Even if it passes, the aroma, light blue, or taste of tea will be reduced. The raw tea leaves to be treated are limited to the shoots of tea, so the thickness and hardness of the leaves may vary depending on the degree of growth and weather of the raw tea leaves when picked, and the growing place at the time of picking. Since there is a subtle difference, a flow meter has been conventionally attached to the steam supply pipe, and a measure has been taken to detect the flow rate of steam with this and open / close the valve according to the detected output. However, the boiler for tea making has an extremely low steam pressure in the can, which is close to normal pressure, and a small amount of steam supply. It was not possible to precisely control the flow rate of and keep it constant. Therefore, conventionally, it has been unavoidable to use a method of manually opening and closing the valve while watching the steaming of the raw tea leaves.
（発明の目的） 本発明は上記した従来のボイラーの不具合を解消し、所
定量の蒸気を定量的に供給することができるようにする
ことを目的とする。(Object of the Invention) It is an object of the present invention to solve the above-mentioned problems of the conventional boiler and to make it possible to quantitatively supply a predetermined amount of steam.
（問題点を解決するための手段） 本発明はボイラーに液面調節機構を取り付けて蒸発缶内
の水面を常に一定に保つようにすれば、蒸発缶内で生成
する蒸気の量と、蒸発缶に供給される水の量とが厳密に
比例することと、蒸気の生成速度はバーナーの発熱量を
調節することによって調節されることに鑑み蒸機に対す
る蒸気の供給量をボイラーに供給される水の量を検知す
ることによって検出し、水の供給量が所定量になるよう
にバーナーの出力を調節し、以って蒸気の供給量を調節
するものである。(Means for Solving the Problems) According to the present invention, if a liquid level adjusting mechanism is attached to a boiler to keep the water level in the evaporator constant, the amount of steam generated in the evaporator and the evaporator can be improved. The amount of water supplied to the boiler is strictly proportional to the amount of water supplied to the boiler, and the rate of steam generation is adjusted by adjusting the calorific value of the burner. The amount of steam is detected by detecting the amount, and the output of the burner is adjusted so that the amount of water supplied becomes a predetermined amount, thereby adjusting the amount of steam supplied.
（実施例） 以下本発明を図示の実施例に基づいて具体的に説明す
る。(Examples) The present invention will be specifically described below based on illustrated examples.
図中符号１はボイラー、２は製茶蒸機である。これらは
通常のこの種のものと変るところはない。即ちボイラー
は伝熱面積３．５m2以下の小形の煙管ボイラーであっ
て、炉筒３にはバーナー４が取付けられていて、バーナ
ー４から噴出された火焔が煙管を通って缶胴内の水を加
熱したのち排気筒５を経て大気中に放出されるようにな
っている。In the figure, reference numeral 1 is a boiler, and 2 is a tea steamer. These are no different from the usual ones of this kind. That is, the boiler is a small smoke tube boiler with a heat transfer area of 3.5 m 2 or less, a burner 4 is attached to the furnace tube 3, and the flame ejected from the burner 4 passes through the smoke tube to cause water in the can body to pass through. Is heated and then discharged into the atmosphere through the exhaust pipe 5.
バーナー４には、云うまでもなく燃料供給管６が接続さ
れると共に、これに燃料調節弁７が取付けられていて、
バーナー４に対する燃料の供給量を調節して、バーナー
４の発熱量を制御するようになっており、又、図示はし
ないが、ボイラー１の蒸発缶８には液面計が具えられる
と共に、給水管９には流量調節弁が取付けられていて、
蒸発缶８内で蒸気が生成して缶内の流面が低下すると、
それに見合った量の新たな水が蒸発缶８に供給されて、
缶内の液面が常に一定に保たれるようになっている。そ
して、蒸気室10と蒸機２との間には蒸気の供給管11が配
設されていて、所定量の蒸気を供給するようになってお
り、又、蒸機２には生茶葉の投入コンベヤ12が付設され
ていて、生茶葉を蒸機２に定量的に供給するようになっ
ている。Needless to say, a fuel supply pipe 6 is connected to the burner 4, and a fuel control valve 7 is attached to this.
The amount of fuel supplied to the burner 4 is adjusted to control the amount of heat generated by the burner 4. Also, although not shown, the evaporator 8 of the boiler 1 is equipped with a liquid level gauge and water supply. A flow control valve is attached to the pipe 9,
When steam is generated in the evaporator 8 to lower the flow surface in the can,
An appropriate amount of new water is supplied to the evaporator 8,
The liquid level in the can is always kept constant. A steam supply pipe 11 is arranged between the steam chamber 10 and the steamer 2 to supply a predetermined amount of steam, and the steamer 2 is provided with a raw tea leaf feeding conveyor 12 Is attached, and the raw tea leaves are quantitatively supplied to the steamer 2.
この様に構成されたボイラー１の燃料調節弁７には制御
器13からの出力信号を受けて作動してこれを開閉する開
閉器14を取り付けると共に、給水管９には流量計15を取
り付けてこれを制御器13に連絡させる。これらは蒸気発
生量制御機構であって、制御器13は任意の設定値（所望
の蒸気発生量）をインプットすることができるようにす
ると共に、流量計15からの入力信号と上記設定値とを比
較する演算回路を具えていて、流量計15からの信号を受
けると、この信号の値（ボイラーに供給される新たな水
の流量）とインプットされた設定値（所望の蒸気発生
量）とを比較し、前者の値が小さいときは、開閉器14に
対してバーナー４の発熱量を増加する出力信号を送り、
前者の値が大きいときは、バーナー４の発熱量を低下さ
せる出力信号を送り、然してボイラーに対する新たな水
の供給量を設定値に一致させるのである。The fuel control valve 7 of the boiler 1 configured as described above is equipped with a switch 14 which operates by receiving an output signal from the controller 13 to open and close the signal, and a water meter 15 is attached to the water supply pipe 9. This is notified to the controller 13. These are steam generation amount control mechanisms, and the controller 13 enables input of an arbitrary set value (desired steam generation amount), and an input signal from the flow meter 15 and the set value. It is equipped with an arithmetic circuit for comparison, and when it receives a signal from the flow meter 15, the value of this signal (new flow rate of water supplied to the boiler) and the input set value (desired steam generation amount) are displayed. In comparison, when the former value is small, an output signal for increasing the calorific value of the burner 4 is sent to the switch 14,
When the former value is large, an output signal for reducing the heat generation amount of the burner 4 is sent, and the new water supply amount to the boiler is made to match the set value.
（発明の効果） 以上詳述した様に、本発明はボイラーの蒸発気缶に液面
計を取り付けて、蒸発缶内の水の量を常に一定に保つこ
とにより、蒸発によってボイラーから排出される水の量
に対してボイラーに供給される新たな水の量が厳密に一
致する点に着目し、ボイラーからの蒸気の発生量を蒸気
供給管内に流通する蒸気の流量を検出して制御するので
はなく、ボイラーに供給する新たな水の流量を検知し、
この流量を制御することによってコントロールするもの
であって、従来の方式が蒸気の圧力が低いため、蒸気の
流量の検出値の誤差が大きかったのに対し、蒸気の圧力
や温度が変化してもその影響を殆ど受けることなく、蒸
気の発生量を精確に検出することができるのであり、従
って所望量の蒸気を発生させて、適正な条件で生茶葉を
蒸すことができるのである。(Effects of the Invention) As described in detail above, according to the present invention, by attaching a liquid level gauge to the evaporation can of the boiler and keeping the amount of water in the evaporation container always constant, the gas is discharged from the boiler by evaporation. Focusing on the fact that the amount of new water supplied to the boiler exactly matches the amount of water, the amount of steam generated from the boiler is controlled by detecting the flow rate of steam flowing in the steam supply pipe. Instead, it detects the flow rate of new water supplied to the boiler,
This is controlled by controlling this flow rate.Since the conventional method has a low steam pressure, there was a large error in the detected value of the steam flow rate, but even if the steam pressure or temperature changed. The amount of steam generated can be accurately detected with almost no influence thereof, and thus a desired amount of steam can be generated to steam fresh tea leaves under appropriate conditions.
図は本発明の一実施例を示す模式図である。 １；ボイラー ２；蒸 機 ３；炉 筒 ４；バーナー ５；排 気 筒 ６；燃料供給管 ７；燃料調節弁 ８；蒸 発 缶 ９；給 水 管 10；蒸 気 室 11；供 給 管 12；投入コンベヤ 13；制 御 器 14；開 閉 器 15；流 量 計 The drawing is a schematic view showing an embodiment of the present invention. 1; Boiler 2; Steamer 3; Furnace cylinder 4; Burner 5; Exhaust cylinder 6; Fuel supply pipe 7; Fuel control valve 8; Steam can 9; Water supply pipe 10; Steam chamber 11; Supply pipe 12 Input conveyor 13; Control device 14; Open / close device 15; Flow meter
Claims (1)
えた製茶用ボイラーの給水管に流量計を取り付けると共
にバーナーには発熱量を調節する開閉弁を取付け、流量
計によりボイラーに供給される水の流量を検知し、その
流量の多寡によりバーナーの発熱量を加減して、その流
量を所定値に制御し、以って蒸気の発生量を制御するこ
とを特徴とする製茶用ボイラーにおける蒸気発生量制御
方法。1. A flow meter is attached to a water supply pipe of a tea making boiler equipped with a mechanism for keeping a liquid level in an evaporator, and an opening / closing valve for adjusting a calorific value is attached to a burner. For tea making characterized by detecting the flow rate of the supplied water and adjusting the heat value of the burner according to the amount of the flow rate to control the flow rate to a specified value, thereby controlling the steam generation rate. Steam generation control method for boilers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11307686A JPH0638732B2 (en) | 1986-05-16 | 1986-05-16 | Method for controlling steam generation in tea making boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11307686A JPH0638732B2 (en) | 1986-05-16 | 1986-05-16 | Method for controlling steam generation in tea making boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62269640A JPS62269640A (en) | 1987-11-24 |
| JPH0638732B2 true JPH0638732B2 (en) | 1994-05-25 |
Family
ID=14602870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11307686A Expired - Lifetime JPH0638732B2 (en) | 1986-05-16 | 1986-05-16 | Method for controlling steam generation in tea making boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638732B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5565896B2 (en) * | 2009-06-17 | 2014-08-06 | 小川香料株式会社 | Extract extraction apparatus and extract production method |
-
1986
- 1986-05-16 JP JP11307686A patent/JPH0638732B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62269640A (en) | 1987-11-24 |
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