JP3245433U - Auxiliary steam drain water recovery device - Google Patents
Auxiliary steam drain water recovery device Download PDFInfo
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- JP3245433U JP3245433U JP2023004256U JP2023004256U JP3245433U JP 3245433 U JP3245433 U JP 3245433U JP 2023004256 U JP2023004256 U JP 2023004256U JP 2023004256 U JP2023004256 U JP 2023004256U JP 3245433 U JP3245433 U JP 3245433U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000011084 recovery Methods 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
【課題】熱水蒸気混合物を回収し、その中のドレン水を回収して利用し、設備の消費エネルギーを低減しつつ水資源を節約する補助蒸気ドレン水回収装置を提供する。【解決手段】ドレン水フラッシュタンク１と、低圧蒸気凝縮器２と、電動給水ポンプのシール室３と、回収パイプ４と、シール水連通パイプ５と、を備え、電動給水ポンプのシール室内にはシール水が収容されており、回収パイプの一端はドレン水フラッシュタンクに接続され、シール水連通パイプの一端は電動給水ポンプのシール室に接続され、回収パイプの他端は、シール水連通パイプの他端と連通してから、Ｕ字形シール水管６に接続され、Ｕ字形シール水管の排出端は低圧蒸気凝縮器に接続される。機械運転に存在する安全上のリスクを低減し、蒸気や水の損失及び運転コストを低減することができる。【選択図】図１The present invention provides an auxiliary steam drain water recovery device that recovers a hot steam mixture, recovers and utilizes drain water therein, and saves water resources while reducing energy consumption of equipment. [Solution] A drain water flash tank 1, a low pressure steam condenser 2, a seal chamber 3 of an electric water supply pump, a recovery pipe 4, and a seal water communication pipe 5 are provided, and the seal chamber of the electric water supply pump includes Seal water is contained, one end of the recovery pipe is connected to the drain water flush tank, one end of the seal water communication pipe is connected to the seal chamber of the electric water supply pump, and the other end of the recovery pipe is connected to the seal water communication pipe. After communicating with the other end, it is connected to a U-shaped sealed water pipe 6, and the discharge end of the U-shaped sealed water pipe is connected to a low pressure steam condenser. The safety risks present in machine operation can be reduced, steam and water losses and operating costs can be reduced. [Selection diagram] Figure 1
Description
本考案は、補助蒸気ドレンの技術分野に関し、特に、補助蒸気ドレン水回収装置に関する。 The present invention relates to the technical field of auxiliary steam drain, particularly to an auxiliary steam drain water recovery device.
補助蒸気ドレン水回収は、主に蒸気タービンやボイラなどの設備に適用される産業用省エネ技術であり、設備で発生させた熱水蒸気混合物を回収し、その中のドレン水を回収して利用し、設備の消費エネルギーを低減しつつ水資源を節約することを目的としている。 Auxiliary steam drain water recovery is an industrial energy-saving technology mainly applied to equipment such as steam turbines and boilers. It recovers the hot steam mixture generated by the equipment and recovers and uses the drain water in it. The aim is to conserve water resources while reducing the energy consumption of equipment.
従来技術では、機械の補助蒸気対象が長期間で待機状態にあるため、運転を迅速に開始できるように、対象パイプは暖かい状態を維持し、ドレン水弁は常に開とし、関連するドレン水はドレン水フラッシュタンクにより減温減圧されてから、回収管１本を介して蒸気凝縮器に回収されたり機械の排水槽に排出されたりし、蒸気凝縮器の真空確立後、論理的には関連するドレン水が減温減圧されてから凝縮器に回収されるはずであるが、実際の作業には、ドレン水フラッシュタンクの液面が低かったりドレン水フラッシュタンクと蒸気凝縮器との間に設けられた調節弁が詰まって故障したりする場合、蒸気凝縮器がドレン水フラッシュタンクを介して大気と直接連通することになり、蒸気凝縮器の真空度の低下を招き、機械の安全で安定的な運転に影響し、従って、安全事故の発生を回避するために、機械現場ではドレン水を機械の排水槽に排出するようにし、その結果、蒸気や水の大きな損失を招いてしまう。 In the conventional technology, the auxiliary steam target of the machine is in a standby state for a long time, so in order to start operation quickly, the target pipe is kept warm, the drain water valve is always open, and the related drain water is The drain water is cooled and depressurized by the flash tank, and then collected into the steam condenser or discharged to the machine drain tank via one collection pipe, and after the vacuum is established in the steam condenser, it is logically related. The drain water is supposed to be collected in the condenser after being reduced in temperature and pressure. If the control valve is clogged and malfunctions, the steam condenser will be in direct communication with the atmosphere through the drain water flash tank, resulting in a decrease in the vacuum level of the steam condenser, which will impede the safe and stable operation of the machine. In order to avoid affecting the operation and therefore the occurrence of safety accidents, the condensate water is discharged into the machine drainage tank at the machine site, resulting in large losses of steam and water.
本考案の目的は、上記従来技術に存在する欠陥を解消するために、機械運転に存在する安全上のリスクを低減し、気水損及び運転コストを低減することができる、補助蒸気ドレン水回収装置を提供することにある。 The purpose of this invention is to eliminate the deficiencies existing in the above-mentioned prior art, to reduce the safety risks existing in machine operation, reduce air water loss and operating costs, and provide auxiliary steam drain water recovery. The goal is to provide equipment.
本考案の目的は、下記技術案により実現することができる。 The purpose of the present invention can be achieved by the following technical proposal.
本考案は、ドレン水フラッシュタンクと、低圧蒸気凝縮器と、電動給水ポンプのシール室と、回収パイプと、シール水連通パイプと、を備え、前記電動給水ポンプのシール室内にはシール水が収容されており、前記回収パイプの一端が前記ドレン水フラッシュタンクに接続され、前記シール水連通パイプの一端が前記電動給水ポンプのシール室に接続され、前記回収パイプの他端が、前記シール水連通パイプの他端と連通してから、Ｕ字形シール水管に接続され、前記Ｕ字形シール水管の排出端が前記低圧蒸気凝縮器に接続される、補助蒸気ドレン水回収装置を提供する。 The present invention includes a drain water flash tank, a low-pressure steam condenser, a seal chamber of an electric water supply pump, a recovery pipe, and a seal water communication pipe, and seal water is contained in the seal chamber of the electric water supply pump. One end of the recovery pipe is connected to the drain water flush tank, one end of the seal water communication pipe is connected to the seal chamber of the electric water supply pump, and the other end of the recovery pipe is connected to the seal water communication pipe. An auxiliary steam drain water recovery device is provided, which communicates with the other end of the pipe and then connects to a U-shaped sealed water pipe, and the discharge end of the U-shaped sealed water pipe is connected to the low-pressure steam condenser.
好ましくは、前記回収パイプには、第１の弁と調節弁とが設けられている。 Preferably, the recovery pipe is provided with a first valve and a control valve.
好ましくは、前記補助蒸気ドレン水回収装置は、ボイラの低位吐水ヘッダー管をさらに備え、前記ボイラの低位吐水ヘッダー管は、供給端が前記ドレン水フラッシュタンクに接続され、排出端が排水槽に合わせられ、前記ボイラの低位吐水ヘッダー管には第２の弁が設けられている。 Preferably, the auxiliary steam drain water recovery device further includes a boiler low water discharge header pipe, wherein a supply end of the boiler low water discharge header pipe is connected to the drain water flash tank, and a discharge end is aligned with the drainage tank. A second valve is provided in the lower discharge header pipe of the boiler.
好ましくは、前記第２の弁は、手動弁と電動弁とを備える。 Preferably, the second valve includes a manual valve and an electric valve.
好ましくは、前記ドレン水フラッシュタンク内には液面計が設けられ、前記液面計には第２のスイッチ回路を介して警報器が接続されている。 Preferably, a liquid level gauge is provided in the drain water flush tank, and an alarm is connected to the liquid level gauge via a second switch circuit.
好ましくは、前記ドレン水フラッシュタンクには減温パイプを介して減温水タンクが接続されており、前記減温パイプには減温水遮断弁が設けられている。 Preferably, a reduced temperature water tank is connected to the drain water flash tank via a reduced temperature pipe, and the reduced temperature pipe is provided with a reduced temperature water cutoff valve.
好ましくは、前記ドレン水フラッシュタンク内には温度伝送器が設けられており、前記温度伝送器は第１のスイッチ回路を介して前記減温水遮断弁に接続される。 Preferably, a temperature transmitter is provided in the drain water flash tank, and the temperature transmitter is connected to the detemperature water cutoff valve via a first switch circuit.
好ましくは、前記Ｕ字形シール水管の水封高さは１０ｍよりも大きい。 Preferably, the water seal height of the U-shaped seal water tube is greater than 10 m.
好ましくは、前記シール水連通パイプには、シール水遮断弁が設けられている。 Preferably, the seal water communication pipe is provided with a seal water cutoff valve.
好ましくは、前記ドレン水フラッシュタンク内には、圧力計が設けられている。 Preferably, a pressure gauge is provided in the drain water flash tank.
本考案は、従来技術に比べると、以下の利点を有する。 The present invention has the following advantages compared to the prior art.
（１）本考案による補助蒸気ドレン水回収装置では、供給端がいずれもドレン水フラッシュタンク及び電動給水ポンプのシール室に接続され、排出端が低圧蒸気凝縮器に接続されるＵ字形シール水管を設けることにより、電動給水ポンプのシール室に設けられるシール水がシール水連通パイプを介してＵ字形シール水管に流れるようにして水封を実現させ、それにより低圧蒸気凝縮器とドレン水フラッシュタンクとの間が大気を介して直接連通することにはならず、さらに低圧蒸気凝縮器内の真空度が低下してしまうことにはならず、機械運転に存在する安全上のリスクを低減する。 (1) The auxiliary steam drain water recovery device according to the present invention has a U-shaped sealed water pipe whose supply end is connected to the drain water flash tank and the seal chamber of the electric water supply pump, and whose discharge end is connected to the low pressure steam condenser. By providing this, the seal water provided in the seal chamber of the electric water supply pump flows through the seal water communication pipe to the U-shaped seal water pipe to achieve a water seal, thereby connecting the low pressure steam condenser and drain water flash tank. There is no direct communication between the two via the atmosphere, and the vacuum level in the low-pressure steam condenser is not reduced, reducing the safety risks present in machine operation.
（２）本考案による補助蒸気ドレン水回収装置では、ドレン水フラッシュタンクの排出端に接続されるボイラの低位吐水ヘッダー管が設けられ、ボイラの低位吐水ヘッダー管に第２の弁が設けられ、回収パイプに第１の弁と調節弁とが設けられることにより、ドレン水の水質が合格である場合、第１の弁及び調節弁を開弁し第２の弁を閉弁して、ドレン水フラッシュタンクにより減温減圧されたドレン水が回収パイプを介してＵ字形シール水管及び低圧蒸気凝縮器に順次流入するようにし、ドレン水を低圧蒸気凝縮器に回収し、不合格である場合、第２の弁を開弁し第１の弁及び調節弁を閉弁して、ドレン水フラッシュタンクにより減温減圧されたドレン水がボイラの低位吐水ヘッダー管を介して排水槽に排出されるようにし、ドレン水の効果的な回収及び排出を実現する。 (2) In the auxiliary steam drain water recovery device according to the present invention, a lower water discharge header pipe of the boiler connected to the discharge end of the drain water flash tank is provided, a second valve is provided on the lower water discharge header pipe of the boiler, By providing the first valve and the control valve in the recovery pipe, when the water quality of the drain water is acceptable, the first valve and the control valve are opened, the second valve is closed, and the drain water is discharged. The drain water whose temperature and pressure have been reduced by the flash tank is made to flow sequentially into the U-shaped seal water pipe and the low pressure steam condenser through the recovery pipe, and the drain water is recovered to the low pressure steam condenser. The second valve is opened, and the first valve and the control valve are closed, so that the drain water whose temperature and pressure have been reduced by the drain water flash tank is discharged to the drain tank via the boiler's lower water discharge header pipe. , to realize effective collection and discharge of drain water.
以下、図面及び特定の実施例を参照して、本考案について詳細に説明する。
実施例
Hereinafter, the present invention will be described in detail with reference to the drawings and specific embodiments.
Example
図１に示すように、本実施例は、ドレン水フラッシュタンク１と、低圧蒸気凝縮器２と、電動給水ポンプのシール室３と、回収パイプ４と、シール水連通パイプ５と、を備え、電動給水ポンプのシール室３内にはシール水が収容されており、回収パイプ４の一端はドレン水フラッシュタンク１に接続され、シール水連通パイプ５の一端は電動給水ポンプのシール室３に接続され、回収パイプ４の他端は、シール水連通パイプ５の他端と連通してから、Ｕ字形シール水管６に接続され、Ｕ字形シール水管６の排出端は低圧蒸気凝縮器２に接続される、補助蒸気ドレン水回収装置を提供する。 As shown in FIG. 1, this embodiment includes a drain water flash tank 1, a low pressure steam condenser 2, a seal chamber 3 of an electric water supply pump, a recovery pipe 4, a seal water communication pipe 5, Seal water is stored in the seal chamber 3 of the electric water supply pump, one end of the recovery pipe 4 is connected to the drain water flush tank 1, and one end of the seal water communication pipe 5 is connected to the seal chamber 3 of the electric water supply pump. The other end of the recovery pipe 4 communicates with the other end of the sealed water communication pipe 5, and then is connected to a U-shaped sealed water pipe 6, and the discharge end of the U-shaped sealed water pipe 6 is connected to the low-pressure steam condenser 2. Provides an auxiliary steam drain water recovery device.
上記技術案によれば、電動給水ポンプのシール室３内に収容されたシール水がシール水連通パイプ５を介してＵ字形シール水管６に流れ、水封が実現され、それにより低圧蒸気凝縮器２とドレン水フラッシュタンク１との間が大気を介して直接連通することにはならず、さらに低圧蒸気凝縮器２内の真空度が低下してしまうことにはならず、機械運転に存在する安全上のリスクを低減し、また、ドレン水がドレン水フラッシュタンク１により減温減圧されてから、回収パイプ４を介してシール水とともにＵ字形シール水管６に流入し、Ｕ字形シール水管６中の水が多すぎて、Ｕ字形シール水管６内の圧力が低圧蒸気凝縮器２内の圧力よりも高い場合、Ｕ字形シール水管６から低圧蒸気凝縮器２に余分な水を汲み入れ、ドレン水の回収を実現する。 According to the above technical proposal, the seal water contained in the seal chamber 3 of the electric water supply pump flows into the U-shaped seal water pipe 6 through the seal water communication pipe 5, and a water seal is realized, thereby the low pressure steam condenser 2 and the drain water flash tank 1 will not be in direct communication with the atmosphere, and the degree of vacuum in the low-pressure steam condenser 2 will not be reduced, which exists in machine operation. In order to reduce safety risks, the drain water is cooled and depressurized by the drain water flash tank 1, and then flows into the U-shaped seal water pipe 6 together with the seal water via the recovery pipe 4. If there is too much water and the pressure in the U-shaped sealed water pipe 6 is higher than the pressure in the low-pressure steam condenser 2, the excess water is pumped from the U-shaped sealed water pipe 6 to the low-pressure steam condenser 2, and the drain water is Achieve the recovery of
任意の実施形態の一つとして、Ｕ字形シール水管６の水封高さは１０ｍよりも大きい。 In one optional embodiment, the water seal height of the U-shaped seal water pipe 6 is greater than 10 m.
任意の実施形態の一つとして、回収パイプ４には、第１の弁７と調節弁８とが設けられ、第１の弁７は、回収パイプ４の連通又は閉塞を調節するためのものであり、調節弁８は、ドレン水フラッシュタンク１内の水位を制御するためのものである。 In one optional embodiment, the recovery pipe 4 is provided with a first valve 7 and a regulating valve 8, and the first valve 7 is for regulating communication or occlusion of the recovery pipe 4. The control valve 8 is for controlling the water level in the drain water flush tank 1.
任意の実施形態の一つとして、シール水連通パイプ５には、シール水遮断弁９が設けられており、シール水遮断弁９は、常に開弁状態を維持することができる。 As one of the arbitrary embodiments, the seal water communication pipe 5 is provided with a seal water cutoff valve 9, and the seal water cutoff valve 9 can always maintain an open state.
任意の実施形態の一つとして、補助蒸気ドレン水回収装置はボイラの低位吐水ヘッダー管１０をさらに備え、ボイラの低位吐水ヘッダー管１０は、供給端がドレン水フラッシュタンク１に接続され、排出端が排水槽に合わせられ、ボイラの低位吐水ヘッダー管１０には第２の弁１１が設けられている。 In an optional embodiment, the auxiliary steam drain water recovery device further comprises a boiler low discharge header pipe 10, the supply end of which is connected to the drain water flash tank 1, and the discharge end of the boiler low discharge header pipe 10. is aligned with the drainage tank, and a second valve 11 is provided in the lower discharge header pipe 10 of the boiler.
ドレン水がドレン水フラッシュタンク１に流入すると、ドレン水の水質の合否を人手で判断し、合格である場合、第１の弁７及び調節弁８を開弁し第２の弁１１を閉弁して、ドレン水フラッシュタンク１により減温減圧されたドレン水が回収パイプ４を介してＵ字形シール水管６及び低圧蒸気凝縮器２に順次流入するようにし、ドレン水を低圧蒸気凝縮器２に回収し、不合格である場合、第２の弁１１を開弁し第１の弁７及び調節弁８を閉弁して、ドレン水フラッシュタンク１により減温減圧されたドレン水がボイラの低位吐水ヘッダー管１０を介して排水槽に排出されるようにする。 When the drain water flows into the drain water flush tank 1, it is manually judged whether the water quality of the drain water is acceptable or not, and if it passes, the first valve 7 and the control valve 8 are opened and the second valve 11 is closed. Then, the drain water whose temperature and pressure have been reduced by the drain water flash tank 1 is made to sequentially flow into the U-shaped sealed water pipe 6 and the low pressure steam condenser 2 via the recovery pipe 4, and the drain water is then transferred to the low pressure steam condenser 2. If the collected water is rejected, the second valve 11 is opened, the first valve 7 and the control valve 8 are closed, and the drain water whose temperature and pressure have been reduced by the drain water flash tank 1 is sent to the lower level of the boiler. The water is discharged to a drainage tank via a water discharge header pipe 10.
任意の実施形態の一つとして、第２の弁１１は、手動弁と電動弁とを備える。 In one optional embodiment, the second valve 11 includes a manual valve and a motorized valve.
任意の実施形態の一つとして、ドレン水フラッシュタンク１には減温パイプ１２を介して減温水タンク１３が接続されており、減温パイプ１２には減温水遮断弁１４が設けられており、ドレン水フラッシュタンク１内の温度が高すぎると、減温水遮断弁１４を開弁し、減温水タンク１３内の低温水が減温パイプ１２を介してドレン水フラッシュタンク１に流入し、ドレン水フラッシュタンク１内のドレン水の水温が高くなりすぎることを回避する。 As one of the optional embodiments, a detemperature water tank 13 is connected to the drain water flush tank 1 via a detemperature pipe 12, and a detemperature water cutoff valve 14 is provided in the detemperature pipe 12. When the temperature inside the drain water flash tank 1 is too high, the de-temperature water cutoff valve 14 is opened, and the low-temperature water in the de-temperature water tank 13 flows into the drain water flash tank 1 via the de-temperature pipe 12, and the drain water is To prevent the temperature of drain water in a flash tank 1 from becoming too high.
好ましくは、ドレン水フラッシュタンク１内には温度伝送器１７が設けられており、温度伝送器１７は第１のスイッチ回路を介して減温水遮断弁１４に接続され、レン水フラッシュタンク１内のドレン水の温度が閾値を超えたと温度伝送器１７が感知した場合、第１のスイッチ回路をオンとし、減温水遮断弁１４を開弁する。 Preferably, a temperature transmitter 17 is provided in the drain water flash tank 1, and the temperature transmitter 17 is connected to the detemperature water cutoff valve 14 via the first switch circuit, and When the temperature transmitter 17 senses that the temperature of the drain water exceeds the threshold value, the first switch circuit is turned on and the reduced temperature water cutoff valve 14 is opened.
任意の実施形態の一つとして、ドレン水フラッシュタンク１内には液面計１５が設けられ、液面計１５には第２のスイッチ回路を介して警報器が接続されており、ドレン水フラッシュタンク内の水位と調節弁８の所定水位の高さの差が閾値よりも大きいと液面計１５が感知した場合、調節弁が故障したりドレン水が滞っていることを意味し、このようになると、第２のスイッチ回路をオンとし、警報器が警報する。 As one of the optional embodiments, a liquid level gauge 15 is provided in the drain water flush tank 1, and an alarm is connected to the liquid level gauge 15 via a second switch circuit. If the liquid level gauge 15 detects that the difference between the water level in the tank and the predetermined water level of the control valve 8 is greater than the threshold, it means that the control valve is malfunctioning or the drain water is stagnant. When this happens, the second switch circuit is turned on and the alarm sounds.
任意の実施形態の一つとして、ドレン水フラッシュタンク１内には、圧力計１６が設けられている。 As one of the optional embodiments, a pressure gauge 16 is provided in the drain water flush tank 1 .
以上、本発明の好適な具体的実施形態について詳細に説明した。理解されるべきこととして、当業者は創造的な工夫を要せずに本発明の思想に対して多くの補正と変更を行うことができる。よって、当業者が本発明の思想に従い従来技術に基づいて論理的分析、推論、あるいは限られた実験により得ることができる技術案であれば、すべて実用新案登録請求の範囲で特定される保護範囲内のものとするべきである。 Above, preferred specific embodiments of the present invention have been described in detail. It should be understood that many amendments and changes to the spirit of the invention may be made by those skilled in the art without any creative ingenuity. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, inference, or limited experimentation based on the prior art in accordance with the idea of the present invention is within the scope of protection specified in the claims for utility model registration. It should be internal.
１ ドレン水フラッシュタンク
２ 低圧蒸気凝縮器
３ 電動給水ポンプのシール室
４ 回収パイプ
５ シール水連通パイプ
６ Ｕ字形シール水管
７ 第１の弁
８ 調節弁
９ シール水遮断弁
１０ ボイラの低位吐水ヘッダー管
１１ 第２の弁
１２ 減温パイプ
１３ 減温水タンク
１４ 減温水遮断弁
１５ 液面計
１６ 圧力計
１７ 温度伝送器
1 Drain water flash tank 2 Low pressure steam condenser 3 Seal chamber of electric feed water pump 4 Recovery pipe 5 Seal water communication pipe 6 U-shaped seal water pipe 7 First valve 8 Control valve 9 Seal water cutoff valve 10 Boiler low water discharge header pipe 11 Second valve 12 Temperature reducing pipe 13 Temperature reducing water tank 14 Temperature reducing water cutoff valve 15 Liquid level gauge 16 Pressure gauge 17 Temperature transmitter
Claims (10)
The auxiliary steam drain water recovery device according to claim 1, wherein a pressure gauge is provided in the drain water flash tank.
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|---|---|---|---|
| CN202321511009.X | 2023-06-14 | ||
| CN202321511009.XU CN220186793U (en) | 2023-06-14 | 2023-06-14 | Steam-assisted drainage recovery device |
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|---|---|
| JP3245433U true JP3245433U (en) | 2024-01-26 |
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| JP2023004256U Active JP3245433U (en) | 2023-06-14 | 2023-11-27 | Auxiliary steam drain water recovery device |
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| CN (1) | CN220186793U (en) |
| DE (1) | DE202023106932U1 (en) |
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| DE202023106932U1 (en) | 2023-12-12 |
| CN220186793U (en) | 2023-12-15 |
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