JPS603127B2 - drain removal device - Google Patents

drain removal device

Info

Publication number
JPS603127B2
JPS603127B2 JP14527475A JP14527475A JPS603127B2 JP S603127 B2 JPS603127 B2 JP S603127B2 JP 14527475 A JP14527475 A JP 14527475A JP 14527475 A JP14527475 A JP 14527475A JP S603127 B2 JPS603127 B2 JP S603127B2
Authority
JP
Japan
Prior art keywords
drain
jet
steam
water
removal device
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
Application number
JP14527475A
Other languages
Japanese (ja)
Other versions
JPS5268602A (en
Inventor
宗良 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHINRYO SEISAKUSHO KK
Original Assignee
SHINRYO SEISAKUSHO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHINRYO SEISAKUSHO KK filed Critical SHINRYO SEISAKUSHO KK
Priority to JP14527475A priority Critical patent/JPS603127B2/en
Publication of JPS5268602A publication Critical patent/JPS5268602A/en
Publication of JPS603127B2 publication Critical patent/JPS603127B2/en
Expired legal-status Critical Current

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Description

【発明の詳細な説明】 本発明はボイラー又は製紙機のドライヤー、その他蒸気
機器などのドレーンを回収して除去するドレーン除去装
置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drain removal device for recovering and removing drains from boilers, dryers of paper machines, and other steam equipment.

一般にドレーン回収には蒸気発生緩から供v給される蒸
気が機器内で放熱したのちにスチームトラップなどでド
レーンを一旦大気に放出し、高温ドレーン水をポンプ又
は還元機器でボィラに戻して回収する方法が知られてい
るが、この大気開放式では蒸気を捨ててしまうので熱回
収に限界があり省エネルギー化に寄与するところが少し
、し、噴き出す蒸気の公害でも問題があった。
Generally, drain recovery involves steam supplied from a steam generator, which radiates heat within the equipment, then releases the drain into the atmosphere using a steam trap, etc., and then returns the high-temperature drain water to the boiler using a pump or reduction device for recovery. This method is known, but since the steam is discarded in this open-to-atmosphere method, there is a limit to heat recovery, making it a small contribution to energy conservation, and there is also a problem with the pollution caused by the steam emitted.

殊に蒸気機器は凝縮熱を奪われた蒸気ドレーンが蒸気機
器並びにドレーン管内からすみやかに排出されることが
熱効率向上・省エネルギーのためにもよい。このため従
来ポンプを備えた循環路中にノズルを設け、ノズルより
の噴流により生ずる負圧を利用してドレーンを吸引し、
吸引したドレーンを上記循環路中の空冷管路を通過せし
めて凝縮させ、循環路の途中に設けた排出口より排出せ
しめるドレーン除去装置を用いることが試みられドーノ
ーンを直接回収して著しく効果的な結果を得られるよう
にはなったがドレーンが発生する機器の位置が低くてド
レーン配管がドレーン除去装置に向って上り勾配となり
ドレーン流入口が高い位置になるようなときはこのドレ
ーン除去装置は満足な性能を発揮しない不便があり、し
かもドレ−ン発生機器の発生ドレーン圧の変動によって
もドレ・‐ン除去機能が左右され運転上不安定となる欠
点があった。即ち、蒸気ドレーンは蒸気より比重が大で
下方へ集まる性質を持ち飽和水に近い高圧ドレーンであ
るため圧力が低下すると一部が再蒸気となり大部分が低
圧ドレーンとなり、循環路の凝縮作用の負担が増加し装
置が大型化となる鏡向がでて効率も悪いし圧力変動力の
大きいときは充分安定した運転ができなくなるものであ
った。本発明はこれら従来の欠点を適確に除去しドレー
ン除去装置の高性能化を実現させ蒸気機器のドレーン除
去能力を著しく向上安定させ得る装置を構成簡単で安価
に提供しようとするにある。
In particular, it is good for steam equipment to promptly discharge the steam drain from which condensation heat has been taken away from the steam equipment and the drain pipe in order to improve thermal efficiency and save energy. For this purpose, a nozzle is installed in the circulation path equipped with a conventional pump, and the drain is sucked using the negative pressure generated by the jet from the nozzle.
Attempts have been made to use a drain removal device that allows the sucked drain to pass through an air-cooled pipe in the circulation path to condense it and discharge it from an outlet provided in the middle of the circulation path. Although we are now able to obtain results, this drain removal device is not satisfactory when the equipment that generates the drain is located low and the drain piping slopes upward toward the drain removal device and the drain inlet is in a high position. This method has the inconvenience of not providing good performance, and furthermore, the drain removal function is influenced by fluctuations in the drain pressure generated by the drain generating device, resulting in unstable operation. In other words, steam drain has a higher specific gravity than steam and tends to collect downwards, and is a high-pressure drain close to that of saturated water.When the pressure decreases, part of it becomes re-steam, and most of it becomes low-pressure drain, reducing the burden of condensation on the circulation path. This increases the size of the device, resulting in poor efficiency, and when pressure fluctuations are large, it is not possible to operate the device in a sufficiently stable manner. The present invention aims to accurately eliminate these conventional drawbacks, realize high performance of a drain removal device, and provide a device with a simple structure and low cost that can significantly improve and stabilize the drain removal ability of steam equipment.

また本発明は、熱効率を低下させることなく負荷の軽減
が可能でコンパクトな装置にしてかつ冷却効果が大で吸
引能力の大なる高性能なドレーン除去装置を提供するこ
とも目的とするものである。本発明はドレーンの取入口
と、その排出口との間にジェットノズル部を設け、その
ジェットノズル部から水を噴出させるポンプと循環路と
を備え、前記ジェットノズル部よりの噴流により生ずる
負圧を利用してドレーンを吸引して凝縮回収する機緩を
持ち、前記ドレーン取入口に蓬適するドレーン配管を一
旦立ちあがらせたのち降下させてドレーン溜りを形成し
、該ドレーン溜りを経て吸引されるドレーンを冷却する
涙却機構を装備したことを特徴とするものである。
Another object of the present invention is to provide a high-performance drain removal device that is compact and capable of reducing the load without reducing thermal efficiency, has a large cooling effect, and has a large suction capacity. . The present invention provides a jet nozzle section between the intake port and the discharge port of the drain, and includes a pump and a circulation path for jetting water from the jet nozzle section, and the negative pressure generated by the jet flow from the jet nozzle section. The drain piping, which fits into the drain intake port, is once raised and then lowered to form a drain reservoir, and the drain is sucked through the drain reservoir. It is characterized by being equipped with a tear drainage mechanism that cools the drain.

本発明の実施例を図面を参照して説明すると、ノズル室
1にノズル2の出口を臨ませノズル2の出口に対向して
ベンチュリーを兼ねたジェット受け口3が形成され吸込
み水路4を経てポンプ5の吸込み口6と蓮通し、ポンプ
5の吐出口7は戻り水路8を経てノズル2と運通して循
環路を形成している。
An embodiment of the present invention will be described with reference to the drawings. The outlet of the nozzle 2 is faced into the nozzle chamber 1, and a jet receiving port 3 which also serves as a venturi is formed opposite to the outlet of the nozzle 2. The suction port 6 of the pump 5 communicates with the nozzle 2 through a return waterway 8, and the discharge port 7 of the pump 5 communicates with the nozzle 2 to form a circulation path.

ノズル室1にはドレーン流入配管9が接続され、戻り水
路8のポンプ吐出口7の附近にはドレ−ン流出管10が
接続されている。そして前記ドレーン流入配管9は蒸気
機器の下部に設置され立ち上り管部11でドレーン溜り
を形成して、ドレーンの取入口が最低位置となりこのド
レーン溜りにドレーンのすみやかな回収ができるように
しさらにドレーンを冷却するための冷却機構例えば冷却
水或し、は冷媒などの冷却液の入口12及び出口13を
有する冷却液室14からなる熱交換器或いはフラッシュ
タンク15を介在装備するか配管16を介して軟水源1
7に連絡して軟水を注入する機構を選んで設けられてい
ると、ドレーン流入配管の圧力を低圧力に容易に変化さ
せることが可能となり、しかも負圧による再蒸気をドレ
ーンに巻き込みやすくし圧力低下の再蒸気の除去で循環
路の凝縮作用も減少しつつドレーンは循環路で凝縮され
、速やかに能率よく排出されうるし、噴流圧、負圧、循
環路等の冷却方法に適合することも容易でポンプ容量も
循環路も小さいのですみ設備全体の小型化に寄与できる
。第2図の具体例では冷却効果を高めるために上記冷却
機構14及び15並びに16,17それぞれを組み合せ
て有しているが必要に応じ一つを選ぶか二つ以上を選ん
で結合することも任意にできる。
A drain inflow pipe 9 is connected to the nozzle chamber 1, and a drain outflow pipe 10 is connected to the return waterway 8 near the pump discharge port 7. The drain inlet pipe 9 is installed at the bottom of the steam equipment, and a riser pipe portion 11 forms a drain reservoir, so that the drain intake port is at the lowest position, and the drain can be quickly collected into this drain reservoir. A cooling mechanism for cooling, for example, a heat exchanger or a flash tank 15 consisting of a cooling liquid chamber 14 having an inlet 12 and an outlet 13 for cooling liquid such as cooling water or refrigerant, or soft water via piping 16. Source 1
If a mechanism is selected and installed to inject soft water by connecting to 7, it will be possible to easily change the pressure in the drain inlet pipe to a low pressure, and it will also be possible to easily draw re-steam due to negative pressure into the drain, reducing the pressure. The condensation effect in the circulation path is also reduced by removing the re-steam from the drop, and the drain can be condensed in the circulation path and discharged quickly and efficiently, and it is easy to adapt to cooling methods such as jet pressure, negative pressure, and circulation paths. Since the pump capacity and circulation path are small, it can contribute to downsizing of the entire equipment. In the specific example shown in FIG. 2, the cooling mechanisms 14 and 15 and 16 and 17 are combined in order to enhance the cooling effect, but one or more may be selected and combined as necessary. Can be done arbitrarily.

この場合軟水注入の冷却機構16,17ではドレーンを
パージしタンクに貯留して軟水として使用するようにす
ることもできる。図中18は戻り水路に形成した放熱フ
ィン19はストレーナでドレーン流入配管9の取入部に
設けられる。
In this case, in the cooling mechanisms 16 and 17 for injecting soft water, the drain may be purged and the water may be stored in a tank to be used as soft water. In the figure, radiating fins 19 formed in the return waterway are provided at the intake portion of the drain inlet pipe 9 as a strainer.

20はセパレートタンクでドレーン流出管10に介在さ
れる。
A separate tank 20 is interposed in the drain outflow pipe 10.

21はガス分離器、22はボィラ、23は流量調節弁、
24はチェツキ弁、25は放出弁、26はドライヤー、
27は蒸気弁、28はポンプモーター、29は冷却水源
、30‘まバイパス管、31,32は弁、33は注入管
である。
21 is a gas separator, 22 is a boiler, 23 is a flow rate control valve,
24 is a check valve, 25 is a discharge valve, 26 is a dryer,
27 is a steam valve, 28 is a pump motor, 29 is a cooling water source, 30' is a bypass pipe, 31 and 32 are valves, and 33 is an injection pipe.

しかしてポンプ5を運転すると水は吐出口7、戻り水礎
8を経てノズル室竃の中にノズル2よりジェットとなっ
て噴射され、ジェット受け口3より吸込み水路4に入り
、吸込み口6に達して循環する。
When the pump 5 is operated, water is injected as a jet from the nozzle 2 through the discharge port 7 and the return water base 8 into the nozzle chamber, enters the suction channel 4 from the jet socket 3, and reaches the suction port 6. and circulate.

ノズル2の出口から高速のジェットが噴出するのでノズ
ル室1内の圧力は下がり、この減圧によりドレーン流入
配管9を通じてドライヤー26などのドレーン源からド
レーンが吸引され、ノズル室1に入りジェット受け口3
よりジェットと共に循環路の中に入る。そして前記ドレ
ーン流入配管9のドレーン溜りとなる立ち上り警部11
でドレーンを一旦ためると共に冷却機構14などで冷却
されドレーン水の水蒸気は復水し、ジェットとなってジ
ェット受け口3より入った水と共に戻り水路8を経て循
環する。従って負圧による再蒸気をドレーンに巻き込み
やすくし圧力低下の再蒸気の除去で循環路の凝縮作用を
減少しドレーン流入配管の圧力も最低圧力に変化させる
ことができドレーン除去機能が安定し効率の良い運転と
設備の小型化が実現できる。一方循環路は常時充満状態
で作動しているので、ドレーン流入配管9よりドレーン
が吸込まれ循環路中で復水すると水量が増加し、この過
剰になった水はドレーン流出管10より排出されドレー
ンを直接回収することが容易適確に可能となるものであ
る。本発明はドレーンの取入口とその排出口との間にジ
ェットノズル部を設け、そのジェットノズル部から水を
噴出させるポンプと循環路とを備え、1前記ジェットノ
ズル部よりの噴流により生ずる負圧を利用してドレーン
を吸引して凝縮回収するものにおいて、ドレーンの取入
口に蓮適するドレーン配管中にドレーン溜りを形成し、
該ドレーン溜りを経て吸引されるドレーンを冷却する冷
却機構を配備したことによりドレーン発生機器内にドレ
・−ンを残存することなく迅速に吸入回収できて、機器
の熱効率を低下せしめることがなくドレーン除去装置を
常時良好な状態で高性能に作動させることができると共
に冷却効果が大きくドレーン吸引量は大となり、ドレー
ン排出能力を向上させて機器性能をよくし、またスチー
ムトラツプなどをも省略化でき装置が非常にコンパクト
になり設置、保守などに関して利点が大きいしまたドレ
−ン吐出圧を高くすることができドレーン輸送が容易と
なって熱回収に役立ちさらに非常に広範囲の蒸気使用機
器のドレーン回収に適用してドレーンの排出や還元使用
を行なうことが可能でありクローズドシステムとできる
ので熱管理の向上とドレーンの熱回収による省エネルギ
ー化とを容易に実現することもでき経済運転に寄与する
もので、しかもドレーン除去装置を安定して能率的に運
転させることもできるなどの効果がある。
As a high-speed jet is ejected from the outlet of the nozzle 2, the pressure inside the nozzle chamber 1 decreases, and due to this pressure reduction, drain is sucked from the drain source such as the dryer 26 through the drain inlet pipe 9, enters the nozzle chamber 1, and flows into the jet receiving port 3.
It enters the circulation path along with the jet. And the rising inspector 11 serves as a drain reservoir of the drain inflow pipe 9.
The drain is temporarily stored and cooled by a cooling mechanism 14, etc., and the water vapor of the drain water is condensed, becomes a jet, and is circulated through the return channel 8 together with the water that entered from the jet receiving port 3. Therefore, re-steam due to negative pressure can be easily drawn into the drain, and by removing the re-steam due to pressure drop, the condensation effect in the circulation path can be reduced, and the pressure in the drain inlet pipe can be changed to the minimum pressure, which stabilizes the drain removal function and improves efficiency. Good operation and downsizing of equipment can be achieved. On the other hand, since the circulation path operates in a full state at all times, the drain is sucked in from the drain inflow pipe 9 and condenses in the circulation path, increasing the amount of water, and this excess water is discharged from the drain outflow pipe 10 and drains into the drain. It is possible to easily and accurately collect the materials directly. The present invention provides a jet nozzle section between the intake port and the discharge port of the drain, and includes a pump and a circulation path for jetting water from the jet nozzle section. In a device that uses drain to suction and condensate recovery, a drain reservoir is formed in the drain piping that fits into the drain intake,
By installing a cooling mechanism that cools the drain sucked through the drain reservoir, drain can be quickly sucked and collected without remaining in the drain generating equipment, and the drain can be removed without reducing the thermal efficiency of the equipment. The removal device can be operated at high performance in good condition at all times, has a large cooling effect, has a large drain suction volume, improves drain discharge capacity, improves equipment performance, and also eliminates the need for steam traps, etc. This makes the device very compact, which has great advantages in terms of installation and maintenance, and also allows the drain discharge pressure to be increased, making drain transport easier, helping with heat recovery, and making it possible to use drains in a wide range of steam-using equipment. When applied to recovery, it is possible to discharge the drain and use it for reduction, and since it can be made into a closed system, it is easy to improve heat management and save energy by recovering heat from the drain, contributing to economical operation. Moreover, there are effects such as being able to operate the drain removal device stably and efficiently.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示し、第1図は系統説明図、第
2図は他の実施例の系統説明図である。 1……ノズル室、2……ノズル、3……ジェット受け口
、4……吸込み水路、5…・・・ポンプ、6・・・・・
・吸込み口、7・・・・・・吐出口、8・…・・戻り水
路、9・・…・ドレーン流入配管、10・…・・ドレー
ン流出管、11・・・・・・立ち上り管部、12・・・
・・・入口、13…・・・出口、14…・・・冷却液室
、15・・・…フラッシュタンク、16・・・・・・配
管、17・・・…軟水源、18・・・・・・放熱フィン
、19・・・・・・ストレーナ、20・・・・・・セパ
レートタンク、21・・・・・・ガス分離器、22・・
・・・・ボイラ、23・・…・流量調節弁、24…・・
・チェツキ弁、25……放出弁、26……ドライヤー、
27…・・・蒸気弁、28・・・・・・ポンプモータ”
、29・・・・・・冷却水源、30・・・・・・バイパ
ス管、3日,32・・・・・・弁。 第1図 第2図
The drawings show an embodiment of the present invention, with FIG. 1 being a system explanatory diagram and FIG. 2 being a system explanatory diagram of another embodiment. 1... Nozzle chamber, 2... Nozzle, 3... Jet socket, 4... Suction channel, 5... Pump, 6...
・Suction port, 7...Discharge port, 8...Return waterway, 9...Drain inflow pipe, 10...Drain outflow pipe, 11...Rise pipe section , 12...
... Inlet, 13 ... Outlet, 14 ... Coolant chamber, 15 ... Flash tank, 16 ... Piping, 17 ... Soft water source, 18 ... ...Radiation fin, 19...Strainer, 20...Separate tank, 21...Gas separator, 22...
...Boiler, 23...Flow rate control valve, 24...
・Check valve, 25...discharge valve, 26...dryer,
27...Steam valve, 28...Pump motor"
, 29...Cooling water source, 30...Bypass pipe, 3rd, 32...Valve. Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 1 ドレーンの取入口と、その排出口との間にジエツト
ノズル部を設け、そのジエツトノズル部から水を噴出さ
せるポンプと循環路とを備え、前記ジエツトノズル部よ
りの噴流により生ずる負圧を利用してドレーンを吸引し
て凝縮回収するものにおいて、ドレーンの取入口に連通
するドレーン配管中にドレーン溜りを形成し、該ドレー
ン溜りを経て吸引されるドレーンを冷却する冷却機構を
配備したことを特徴とするドレーン除去装置。
1. A jet nozzle section is provided between the intake port and the discharge port of the drain, and a pump and a circulation path are provided to jet water from the jet nozzle section, and the drain is installed using the negative pressure generated by the jet flow from the jet nozzle section. A drain for condensing and recovering water by suctioning the drain, characterized in that a drain reservoir is formed in a drain pipe communicating with an intake port of the drain, and a cooling mechanism is provided to cool the drain sucked through the drain reservoir. removal device.
JP14527475A 1975-12-06 1975-12-06 drain removal device Expired JPS603127B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14527475A JPS603127B2 (en) 1975-12-06 1975-12-06 drain removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14527475A JPS603127B2 (en) 1975-12-06 1975-12-06 drain removal device

Publications (2)

Publication Number Publication Date
JPS5268602A JPS5268602A (en) 1977-06-07
JPS603127B2 true JPS603127B2 (en) 1985-01-25

Family

ID=15381335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14527475A Expired JPS603127B2 (en) 1975-12-06 1975-12-06 drain removal device

Country Status (1)

Country Link
JP (1) JPS603127B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476401U (en) * 1977-11-10 1979-05-31

Also Published As

Publication number Publication date
JPS5268602A (en) 1977-06-07

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