CN1048446A - The thermodynamic deoxidizing method of hot-water boiler and device - Google Patents
The thermodynamic deoxidizing method of hot-water boiler and device Download PDFInfo
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- CN1048446A CN1048446A CN 90104885 CN90104885A CN1048446A CN 1048446 A CN1048446 A CN 1048446A CN 90104885 CN90104885 CN 90104885 CN 90104885 A CN90104885 A CN 90104885A CN 1048446 A CN1048446 A CN 1048446A
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Abstract
The invention belongs to hot water boiler water-feeding's deoxygenation technology, its objective is is not having under the occasion of water vapour, utilizes the atmospheric-type thermodynamic deoxidizing of the high-temperature-hot-water realization make-up water of hot-water boiler outlet.Its method is to enter the flash distillation oxygen-eliminating device after the high-temperature-hot-water that utilizes hot-water boiler to produce is heated to 110 ℃ by heat exchanger with demineralized water, 110 ℃ demineralized water in oxygen-eliminating device by nozzle atomization, the flash distillation of part water, the oxygen that the water vapour that produces will be overflowed from water is entrained with oxygen-eliminating device, thereby reaches deaerating effect.Technological Economy confirms that relatively this method all is better than vacuum degassing process at technology, economic aspect.
Description
The invention belongs to the technical field of hot water boiler water-feeding's deoxygenation.
At present, the existing heat capacity of China is 25 * 10
6, 50 * 10
6, 105 * 10
6The hot-water boiler product line of kj/h, these jumbo hot-water boilers are adopted by the concentrated supply of heating in the city engineering widely, as the thermal source of regional heating plant or as the peak adjusting heat source of steam power plant's centralized heating project.The leakage loss of heat supply network recirculated water is in operation, owing to must be replenished the deoxygenation demineralized water at any time in the boiler cycle pump porch.During normal the operation, rate of water make-up is the 0.5-1% of quantity of circulating water.Water without deoxygenation will corrode generator tube and heat supply pipeline.Therefore, comprised control criterion in the water standard of China for boiler feedwater and heating network make-up water to oxygen content.
The domestic deoxidation method that is used for boiler feedwater at present mainly contains atmospheric-type thermodynamic deoxidizing method and vacuum degassing process, for hot-water boiler, occasion at boiler room anhydrous steam source of the gas, the vacuum degassing process that adopt more, vacuum degassing process requires equipment vacuum height (vacuum 600～700 millimeters of water), the steam jet ejector or the water stream injection pump that form vacuum must move by continous-stable, thereby energy consumption is big, poor reliability.Utilize the device of the waste heat realization atmospheric-type thermodynamic deoxidizing in oil, the chemical enterprise to realize (seeing patent publication No. GK86101425) in China.
The objective of the invention is to utilize the heat in the hot water that hot-water boiler itself produces, do not having under the occasion of water vapour, realize the atmospheric-type thermodynamic deoxidizing of hot-water boiler.
The thermodynamic deoxidizing method of hot-water boiler of the present invention, it is characterized in that utilizing the hot water of hot-water boiler outlet by the heat exchanger heats demineralized water, the demineralized water that is heated to 110 ℃, pressure and is 0.2MPa enters the flash distillation oxygen-eliminating device, through nozzle atomization, demineralized water pressure is reduced to 0.12MPa, part demineralized water flashes to water vapour, and water temperature is reduced to 104 ℃, and the oxygen that water vapour will be overflowed from demineralized water is being carried secretly from oxygen-eliminating device and discharged.
The thermal deoxygenizing apparatus of hot-water boiler of the present invention, form by flash distillation oxygen-eliminating device, deoxygenation water tank, demineralized water force (forcing) pump, demineralized water preheater, hot water force (forcing) pump, stram condenser, it is characterized in that utilizing boiler export hot water by the heat exchanger heats demineralized water, this part hot water utilizes the hot water force (forcing) pump to send into heat supply network feed pipe or return pipe after cooling.
The thermodynamic deoxidizing method and the device of hot-water boiler of the present invention belong to atmospheric-type thermodynamic deoxidizing method, and its advantage is to be to solve hot-water boiler only can adopt the difficult problem of vacuum oxygen-removing method because of dry-steam can't use atmospheric-type thermodynamic deoxidizing method in the past.Its technical-economic index is better than vacuum degassing process.When the deoxygenation water yield is 12t/h, adopt deoxidation method of the present invention, total electric power 2.83KW; When adopting vacuum degassing process, total electric power is 24.9KW.Adopt deoxidation method of the present invention, system is in positive pressure operation, compares with vacuum degassing process, and the stability of system's operation is much higher.
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the thermal de-aeration flow process of hot-water boiler.
Demineralized water in the softening water tank 7 enters demineralized water preheater 4 after demineralized water force (forcing) pump 3 is forced into 0.3MPa, the hot water that demineralized water is exported by hot-water boiler 10 in preheater is heated to about 110 ℃, pressure is reduced to 0.2MPa, enters the flash distillation oxygen-eliminating device 1 that is positioned at deoxygenation water tank 2 tops then.
In the flash distillation oxygen-eliminating device, 110 ℃ demineralized water is atomized into the water droplet of diameter less than 0.1mm by the nozzle that is positioned at flash distillation oxygen-eliminating device bottom, and pressure is reduced to 0.12MPa simultaneously.The atomizing of demineralized water is adiabatic step-down process, and the water droplet that atomizing back forms is in superheat state, and a part of water will be vaporized, and remaining water then makes temperature reduce to saturation temperature under the 0.12MPa pressure owing to vaporescence sponges some heats (latent heat of vaporization).Water droplet after the atomizing has very big specific area, and oxygen soluble in water and other gas will be overflowed from water.The water vapour that atomizing produces will carried the steam-water separator 11 that from water escaping gas enters oxygen-eliminating device top secretly, and steam-water separator is isolated the water droplet of carrying secretly in the water vapour, makes it to flow into the deoxygenation water tank 2 that is positioned at the oxygen-eliminating device bottom.Water vapour and other gas are then discharged from the exhaust outlet at oxygen-eliminating device top, enter stram condenser 6.In stram condenser, water vapour is flow to softening water tank 7 by the cooling water condensation in the coil pipe, and oxygen, nitrogen and carbon dioxide are then discharged system.
The demineralized water of storage utilizes small pump 8 to mend the heat supply network return pipe in the deoxygenation water tank 2, and small pump can be used as the constant pressure pump of heating system simultaneously.The heat supply network backwater is delivered to hot-water boiler 10 through boiler circulation pump 9 pressurizations, and the hot water that boiler produces is sent into heat supply network as the feedwater of heating system.The hot water that part boiler produces enters demineralized water preheater 4 and is used for thermoplastic water, and behind the thermoplastic water, this part hot water temperature will reduce to 100 ℃ or lower.The resistance of demineralized water preheater is about 0.05MPa, concrete condition according to the system pressure distribution, this part hot water can utilize lift to send into the heat supply network feed pipe for the hot water force (forcing) pump 5 of 0.05MPa, also might directly send into the heat supply network feed pipe (when demineralized water preheater resistance hour) or the return pipe (when demineralized water preheater outlet water temperature is too low) of heat supply network.
At first component A is made resin paste by proportioning, be heated to uniform temperature after component B is mixed, the cooling back is mixed fully stirring with component A in 1: 1 ratio, makes emulsifying resins and sticks with paste.The method of producing emulsified polyvinyl dipping gloves is the same.
Use method provided by the invention can produce the dipping gloves, also can produce rainproof overshoes, oversleeve, apron and other fabricbase dipped articles.
Claims (2)
1, a kind of thermodynamic deoxidizing method that is applicable to hot-water boiler, it is characterized in that utilizing the hot water of hot-water boiler outlet by the heat exchanger heats demineralized water, the demineralized water that is heated to 110 ℃, pressure and is 0.2MPa enters the flash distillation oxygen-eliminating device, through nozzle atomization, demineralized water pressure is reduced to 0.12MPa, part demineralized water flashes to water vapour, and water temperature is reduced to 104 ℃, and the oxygen that water vapour will be overflowed from demineralized water is being carried secretly from oxygen-eliminating device and discharged.
2, a kind of thermal deoxygenizing apparatus that is applicable to hot-water boiler, form by flash distillation oxygen-eliminating device, deoxygenation water tank, demineralized water force (forcing) pump, demineralized water preheater, hot water force (forcing) pump, stram condenser, it is characterized in that utilizing boiler export hot water by the heat exchanger heats demineralized water, this part hot water utilizes the hot water force (forcing) pump to send into heat supply network feed pipe or return pipe after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104885 CN1048446A (en) | 1990-07-31 | 1990-07-31 | The thermodynamic deoxidizing method of hot-water boiler and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104885 CN1048446A (en) | 1990-07-31 | 1990-07-31 | The thermodynamic deoxidizing method of hot-water boiler and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1048446A true CN1048446A (en) | 1991-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 90104885 Pending CN1048446A (en) | 1990-07-31 | 1990-07-31 | The thermodynamic deoxidizing method of hot-water boiler and device |
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| CN (1) | CN1048446A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165399B (en) * | 2007-08-07 | 2010-11-03 | 江苏工业学院 | Boiler low grade residual heat combined reclamation method and device |
| CN104713058A (en) * | 2013-12-12 | 2015-06-17 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN104828892A (en) * | 2015-03-31 | 2015-08-12 | 山东胜星化工有限公司 | Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water |
| CN105043730A (en) * | 2015-06-26 | 2015-11-11 | 中国核动力研究设计院 | Deoxidizing structure suitable for thermal hydraulic closed test loop and dynamic deoxidizing method |
| CN105090930A (en) * | 2015-08-20 | 2015-11-25 | 四川德胜集团钒钛有限公司 | Boiler water supply mechanism |
| CN105650942A (en) * | 2016-03-25 | 2016-06-08 | 中冶南方工程技术有限公司 | Air energy heat pump water replenishing, deoxygenizing and air conditioning system |
| CN106016243A (en) * | 2016-06-21 | 2016-10-12 | 昆明理工大学 | Energy-saving control device of small boiler of solar hot water deaerator |
| CN113310512A (en) * | 2021-05-17 | 2021-08-27 | 扬州华大锅炉有限公司 | Thermodynamic system corrosion protection on-line detection device for hot water boiler |
-
1990
- 1990-07-31 CN CN 90104885 patent/CN1048446A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165399B (en) * | 2007-08-07 | 2010-11-03 | 江苏工业学院 | Boiler low grade residual heat combined reclamation method and device |
| CN104713058A (en) * | 2013-12-12 | 2015-06-17 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN104713058B (en) * | 2013-12-12 | 2017-05-24 | 霍特安热能技术（江苏）有限公司 | Self-deoxidization waste heat boiler suitable for sulfur-containing fuel |
| CN104828892A (en) * | 2015-03-31 | 2015-08-12 | 山东胜星化工有限公司 | Process for production of deoxygenated water by heat exchange of fractionating tower top cycle oil and softened water |
| CN105043730A (en) * | 2015-06-26 | 2015-11-11 | 中国核动力研究设计院 | Deoxidizing structure suitable for thermal hydraulic closed test loop and dynamic deoxidizing method |
| CN105090930A (en) * | 2015-08-20 | 2015-11-25 | 四川德胜集团钒钛有限公司 | Boiler water supply mechanism |
| CN105650942A (en) * | 2016-03-25 | 2016-06-08 | 中冶南方工程技术有限公司 | Air energy heat pump water replenishing, deoxygenizing and air conditioning system |
| CN106016243A (en) * | 2016-06-21 | 2016-10-12 | 昆明理工大学 | Energy-saving control device of small boiler of solar hot water deaerator |
| CN106016243B (en) * | 2016-06-21 | 2018-05-11 | 昆明理工大学 | A kind of solar water oxygen-eliminating device miniature boiler energy-saving control device |
| CN113310512A (en) * | 2021-05-17 | 2021-08-27 | 扬州华大锅炉有限公司 | Thermodynamic system corrosion protection on-line detection device for hot water boiler |
| CN113310512B (en) * | 2021-05-17 | 2022-08-09 | 扬州华大锅炉有限公司 | Thermodynamic system corrosion protection on-line detection device for hot water boiler |
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