CN102092809A - Vacuum thermal deoxidizing device - Google Patents

Vacuum thermal deoxidizing device Download PDF

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Publication number
CN102092809A
CN102092809A CN2009102001440A CN200910200144A CN102092809A CN 102092809 A CN102092809 A CN 102092809A CN 2009102001440 A CN2009102001440 A CN 2009102001440A CN 200910200144 A CN200910200144 A CN 200910200144A CN 102092809 A CN102092809 A CN 102092809A
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CN
China
Prior art keywords
water
deoxidizing
vacuum
deoxygenation
oxygen
Prior art date
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Pending
Application number
CN2009102001440A
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Chinese (zh)
Inventor
岳峰
武建飞
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.)
SHANGHAI CHENGYU SCIENCE AND TRADE CO Ltd
Original Assignee
SHANGHAI CHENGYU SCIENCE AND TRADE CO Ltd
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
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Application filed by SHANGHAI CHENGYU SCIENCE AND TRADE CO Ltd filed Critical SHANGHAI CHENGYU SCIENCE AND TRADE CO Ltd
Priority to CN2009102001440A priority Critical patent/CN102092809A/en
Publication of CN102092809A publication Critical patent/CN102092809A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a vacuum thermal deoxidizing device, which comprises a deoxidizing horizontal tank, a water pump, a filter, a deoxidizing spray head, a vacuum pump system, an automatic PLC (Programmable logic Controller) and corresponding process pipelines and control valves. The vacuum thermal deoxidizing device is characterized in that a heating device is arranged in the deoxidizing horizontal tank; pressurized softened water is conveyed to the filter for filtering; the filtered water enters the deoxidizing horizontal tank through the deoxidizing spray head; the softened water is heated to the temperature ranging form 30 DEG C to 35 DEG C by the heating device; the inside of the deoxidizing horizontal tank is made to be in a negative pressure state by the vacuum pump so that the balance of oxygen in water is reduced and the oxygen is released; the evaporated water vapor and the released oxygen and other gases are extracted by the vacuum pump; the water is atomized and deoxidized and then is deoxidized again by heating; and the treated deoxidized water is supplied to a user through a water outlet pump. According to the invention, the defects that the traditional vacuum deoxidizing device has high operation vacuum degree and traditional thermal deoxidizing device is difficult to control are overcome; the vacuum degree during operation and the temperature for heating the softened water are reduced; the vacuum thermal deoxidizing device has favorable deoxidizing effect; and the residual oxygen content after the deoxidizing is carried out can be reduced to 0.05mg/L.

Description

A kind of vacuum thermal deoxygenizing apparatus
Technical field
The present invention relates to a kind of de-aerator plant, particularly is that thermal deaerator and pure vacuum deoxygenator have been carried out improved a kind of vacuum thermal deoxygenizing apparatus.
Background technology
Deaeration in condenser utilizes the Henry principle to come deoxygenation, and promptly the pressure component of this gas is directly proportional on the solubleness of gas in water and the water surface: i.e. { O}=KP0.Pressure component is more little, and the solubleness of then this gas in water is more little.Therefore, reduce the pressure component of oxygen, the solubleness of oxygen is reduced.Will oxygen-containing water through spraying in the jar after the atomizing of deoxygenation shower nozzle since jar in vacuum tightness very the pressure component of high oxygen approach zero, oxygen soluble in water promptly can be separated from water because of the pressure component of oxygen on the water surface is minimum, reaches the purpose of deoxygenation.Vacuum dust cather operation vacuum tightness requires high.
Thermal deaerator is to utilize Henry's law and Dalton's law.Dalton's law: the total pressure of mixed gas equals respectively to form the pressure component sum of gas, oxygen-removing tower spatial total pressure P equals to dissolve in the water all gases vapor partial pressure power Ps sum on the pressure component Pi of incondensable gas on the water surface and the water surface, that is: P=∑ Pi+Ps, in thermal deaerator, heat water to the temperature of saturation under the operating pressure, be generally 104 ℃, water evaporates gradually, the vapor pressure of water surface increases gradually, be approximately equal to total pressure, the pressure component of other gas is bordering on or equals zero, and just may allow all gases in the water separate out fully.The thermal de-aeration technology is a kind of proven technique, but also exist some problems in actual applications, at first the thermal load of boiler house is because of the frequent change of hot user's variation, and management and operant level are lower, the deoxygenation water temperature does not usually reach the numerical value of deoxygenator requirement, makes deaerating effect bad.Secondly, this deoxidation method requires the high-order layout of equipment, and it is all inconvenient to have increased initial cost, design, installation, operation.Adopting the shortcoming of thermal deaerator for the movable injection boiler in oil field is to adopt the Boiler Steam heating, make the boiler house increase from steam consumption, reduced effectively outer steam supply, after thermal deaerator is heated to 104 ℃ to soft water, arrived the deoxygenation purpose, yet the injection boiler inflow temperature can not be higher than 50 ℃, also need interchanger that the temperature of deaerated water is reduced, increased the complexity of thermal losses and equipment flowsheet
Summary of the invention
The objective of the invention is provides a kind of vacuum thermal deoxygenizing apparatus in order to overcome former thermal deaerator and pure vacuum deoxygenator shortcoming.
Technical scheme of the present invention is, a kind of vacuum thermal deoxygenizing apparatus, comprise for sleeping in jar of deoxygenation, the water outlet water pump, Stainless Steel Filter, one-level deoxygenation shower nozzle, vacuum pump system, PLC automatic control device and corresponding process pipeline and control valve member, be characterized in, deoxygenation jar for sleeping in is built-in with heating unit, band is pressed softening water to deliver to Stainless Steel Filter and is filtered, water after the filtration enters in the deoxygenation jar for sleeping in by one-level deoxygenation shower nozzle, in crouching jar, deoxygenation soft water is heated between 30 ℃-35 ℃ by heating unit, the effect of vacuum pump, be in negative pressure state in the deoxygenation jar for sleeping in, the balance of oxygen in water reduced and discharge, the steam of evaporation and the gases such as oxygen of release are extracted out by vacuum pump, and water is after the deoxidation of advancing to spray, carry out deoxidation once more by heating then, the deaerated water after the processing is supplied with the user by the water outlet water pump.
The present invention has overcome the difficult shortcoming of the high and original thermal deaerator control of original vacuum dust cather operation vacuum tightness, vacuum tightness when not only having reduced operation has also reduced the temperature of soft water heating, be particularly related to advanced up till now atomization technique, in jar, add heating unit at the vacuum thermal deaerator, directly utilize Boiler Steam heating soft water to be heated between 30 ℃-35 ℃, by vacuum system allow reach in the jar and jar in the corresponding saturated vacuum tightness of temperature, the oxygen of separating out and other gases are discharged to outside the jar by vacuum system.The temperature of deaerated water has only the requirement that is lower than the uphole steam generator inflow temperature between 30 ℃-35 ℃ can directly enter boiler, does not cause the waste of heat.Because vacuum tightness and soft water temperature in jar are in a running balance, soft water is under the temperature of saturation, guaranteed deaerating effect, can remove other gases soluble in water such as carbonic acid gas when removing oxygen, the remaining oxygen level after the deoxygenation can drop to 0.05mg/L.Equipment is not to move under condition of high vacuum degree, and deaeration plant takes up an area of few, and metal consumption is little, thereby reduces initial cost.
Description of drawings
Fig. 1 is a vacuum thermal deoxygenizing apparatus structural representation.
Embodiment
This vacuum analysis deoxidizing device comprises a deoxygenation crouch jars of 5, one water outlet water pumps 6, Stainless Steel Filter 3, one-level deoxygenation shower nozzle 4, a cover vacuum pump system 2, a cover PLC automatic control device and a corresponding process pipeline and a control valve member, and characteristics are that deoxygenation is crouched and jars 5 is built-in with heating unit 1.
Band is pressed softening water to deliver to Stainless Steel Filter 3 and is filtered, and the water after the filtration enters in the deaeration pump 5 by one-level deoxygenation shower nozzle 4, by heating unit soft water is heated between 30 ℃-35 ℃ in jar.Because the effect of vacuum system 2 is in negative pressure state in jar, the balance of oxygen in water reduced and discharge, the steam of evaporation and the oxygen of release, other gases are (as CO 2, NH 3) extract out by vacuum pump.Water is supplied with the user by water outlet water pump 6 then after deoxidation.

Claims (1)

1. vacuum thermal deoxygenizing apparatus, comprise for sleeping in jar of deoxygenation, the water outlet water pump, Stainless Steel Filter, one-level deoxygenation shower nozzle, vacuum pump system, PLC automatic control device and corresponding process pipeline and control valve member, it is characterized in that, deoxygenation jar for sleeping in is built-in with heating unit, band is pressed softening water to deliver to Stainless Steel Filter and is filtered, water after the filtration enters in the deoxygenation jar for sleeping in by one-level deoxygenation shower nozzle, in crouching jar, deoxygenation soft water is heated between 30 ℃-35 ℃ by heating unit, under the effect of vacuum pump, be in negative pressure state in the deoxygenation jar for sleeping in, the balance of oxygen in water reduced and discharge, the steam of evaporation and the gases such as oxygen of release are extracted out by vacuum pump, water carries out deoxidation once more by heating then after the deoxidation of advancing to spray, the deaerated water after the processing is supplied with the user by the water outlet water pump.
CN2009102001440A 2009-12-09 2009-12-09 Vacuum thermal deoxidizing device Pending CN102092809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102001440A CN102092809A (en) 2009-12-09 2009-12-09 Vacuum thermal deoxidizing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102001440A CN102092809A (en) 2009-12-09 2009-12-09 Vacuum thermal deoxidizing device

Publications (1)

Publication Number Publication Date
CN102092809A true CN102092809A (en) 2011-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009102001440A Pending CN102092809A (en) 2009-12-09 2009-12-09 Vacuum thermal deoxidizing device

Country Status (1)

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CN (1) CN102092809A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047640A (en) * 2012-12-26 2013-04-17 淮安万邦香料工业有限公司 Boiler with heat exchanging device
CN103818981A (en) * 2014-03-21 2014-05-28 江苏凯弘新能源管理有限公司 Energy-saving deoxidation system of industrial boiler
CN106115831A (en) * 2016-06-30 2016-11-16 东软安德医疗科技有限公司 A kind of pure water feedway
CN106542600A (en) * 2016-11-04 2017-03-29 长沙理工大学 A kind of device and method of the easy accurate deoxygenation of laboratory
CN107940440A (en) * 2017-12-13 2018-04-20 北京京诚凤凰工业炉工程技术有限公司 Novel thermal vacuum deoxygenation system
CN114754348A (en) * 2022-04-20 2022-07-15 金能科技股份有限公司 Vacuum deoxidization system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047640A (en) * 2012-12-26 2013-04-17 淮安万邦香料工业有限公司 Boiler with heat exchanging device
CN103818981A (en) * 2014-03-21 2014-05-28 江苏凯弘新能源管理有限公司 Energy-saving deoxidation system of industrial boiler
CN106115831A (en) * 2016-06-30 2016-11-16 东软安德医疗科技有限公司 A kind of pure water feedway
CN106542600A (en) * 2016-11-04 2017-03-29 长沙理工大学 A kind of device and method of the easy accurate deoxygenation of laboratory
CN106542600B (en) * 2016-11-04 2019-12-13 长沙理工大学 A simple and accurate device and method for deoxygenation in laboratory
CN107940440A (en) * 2017-12-13 2018-04-20 北京京诚凤凰工业炉工程技术有限公司 Novel thermal vacuum deoxygenation system
CN107940440B (en) * 2017-12-13 2024-03-26 北京京诚凤凰工业炉工程技术有限公司 Thermal vacuum deoxidizing system
CN114754348A (en) * 2022-04-20 2022-07-15 金能科技股份有限公司 Vacuum deoxidization system

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Application publication date: 20110615