CN101691248B - Method for improving deoxygenating effect of thermal deoxygenator and thermal deoxygenator using same - Google Patents
Method for improving deoxygenating effect of thermal deoxygenator and thermal deoxygenator using same Download PDFInfo
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- CN101691248B CN101691248B CN2009100863679A CN200910086367A CN101691248B CN 101691248 B CN101691248 B CN 101691248B CN 2009100863679 A CN2009100863679 A CN 2009100863679A CN 200910086367 A CN200910086367 A CN 200910086367A CN 101691248 B CN101691248 B CN 101691248B
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- main exhaust
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- air accumulator
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Abstract
The invention relates to a method for improving the deoxygenating effect of a thermal deoxygenator. One or a plurality of cistern exhaust openings are arranged in the peripheral position at a cistern top of the thermal deoxygenator, the oxygen accumulated at the cistern top is discharged through the cistern exhaust openings, and the oxygen is discharged in a continuous mode or intermittent mode. The invention also relates to the thermal deoxygenator using the method, which comprises a thermal deoxygenator body comprising a degassing tower and a cistern, wherein the cistern is installed at the bottom of the degassing tower and is communicated with the degassing tower; the degassing tower is provided with a gas inlet pipe and a water inlet pipe; and one or a plurality of cistern exhaust openings are arranged in the peripheral position at the cistern top and are connected with a cistern exhaust pipe. The invention can remove the oxygen accumulated at the upper part of the cistern in time to prevent the oxygen from dissolving into water again, is favorable for lowering the oxygen content in the discharged water, improves the deoxygenating effect of the deoxygenator, and is mainly used for boiler systems and especially large boiler systems.
Description
Technical field
The present invention relates to a kind of method of improving the thermal deaerator deaerating effect, also relate to a kind of thermal deaerator that adopts this method, mainly can be used for the thermal de-aeration of boiler feedwater, particularly the thermal de-aeration of large-sized boiler feedwater.
Background technology
No. 200420120557.0 utility application of China disclose a kind of low level, heating power deaerator; This oxygen-eliminating device comprises oxygen-eliminating device body and water pump; Said oxygen-eliminating device body mainly is made up of degassing tower and water tank, and said degassing tower is provided with steam inlet pipe, water inlet pipe and gland steam exhauster, and said water pump is positioned at oxygen-eliminating device body below; Connect with said water tank, said gland steam exhauster is provided with autocontrol valve.The construction investment that this oxygen-eliminating device has been eliminated common high-order thermal deaerator is big, hoisting difficulty is big, long construction period and water pump had a series of defectives such as certain cavitation; And through autocontrol valve is set on gland steam exhauster; When not needing deoxygenation, can gland steam exhauster be closed automatically, both avoid unnecessary discharge of steam, help the stable of tank pressure again; Help energy savings and water resource, help reducing the oxygen content in the water.But, in the particularly large-scale thermal deaerator of thermal deaerator, because treating capacity is very big; Water is difficult to abundant mixing with steam in the deoxidation tower, makes water temperature can't reach perfect condition, and the modes such as boiling again in the water tank of passing through feed water and heat in the process of deoxidation; The oxygen of deviating from is positioned at the upper space of water tank; Owing to fall water seal and live gas channel, make the oxygen-containing gas of water tank upper edge pass degassing tower and accumulate in for a long time in the water tank, these oxygen that accumulate in above the water tank water surface are dissolved in the water once more; Cause the oxygen content of water to raise, make water outlet can't reach required deaerating effect.
Summary of the invention
For overcoming the above-mentioned defective of prior art; The invention provides a kind of method of improving the thermal deaerator deaerating effect, also relate to a kind of thermal deaerator that adopts this method, adopt this method and this equipment; Can the oxygen that accumulate in water tank upper in time be got rid of; Avoid oxygen to be dissolved into again in the water again, help lowering the oxygen content of water outlet, improve the deaerating effect of oxygen-eliminating device.
The present invention realizes that the technical scheme of above-mentioned purpose is:
A kind of method of improving the thermal deaerator deaerating effect; Peripheral position in the tank top of thermal deaerator is provided with one or more water tank exhaust outlets; The oxygen that to suppress in said tank top through said water tank exhaust outlet ejects, and the mode of discharging oxygen is continous way or batch (-type).
A kind of thermal deaerator that adopts said method; Comprise the thermal deaerator body that constitutes by degassing tower and water tank; Said water tank is installed in the degassing tower bottom, and with degassing tower UNICOM, said degassing tower is provided with steam inlet pipe and water inlet pipe; The peripheral position of said tank top is provided with one or more water tank exhaust outlets, and said one or more water tank exhaust outlets are connected in a water tank blast pipe.
The invention has the beneficial effects as follows: owing on the water tank peripheral position, be provided with one or more exhaust outlets; The oxygen-containing gas that will accumulate in water tank upper through these exhaust outlets is discharged; The oxygen content of having avoided thus causing because oxygen dissolves again raises; Improved the deaerating effect of thermal deaerator,, all reached the standard of water outlet after the transformation through the transformation of applicant to many oxygen content of the on-the-spot operation of industries such as petrochemical industry large-scale thermal deaerator not up to standard.
Description of drawings
Fig. 1 is the structural representation of a kind of product embodiments of the present invention;
Fig. 2 is the structural representation of the another kind of product embodiments of the present invention.
The specific embodiment
Referring to Fig. 1 and Fig. 2; Thermal deaerator of the present invention is on the basis of existing thermal deaerator; Edge at the top of water tank 1 is provided with one or more exhaust outlets 14, and through intermittently or continuous exhaust mode oxygen containing gas in the water tank is discharged, improved the deoxygenation rate thus.
Thermal deaerator provided by the invention comprises the thermal deaerator body that is made up of degassing tower 2 and water tank 1; Said water tank is installed in the degassing tower bottom; With degassing tower UNICOM; Said degassing tower is provided with steam inlet pipe and water inlet pipe, and the peripheral position of said tank top is provided with one or more water tank exhaust outlets 14, and said one or more water tank exhaust outlets are connected in a water tank blast pipe 13.
Said water tank blast pipe can be connected in the discharge duct (as shown in Figure 2) that said degassing tower top is provided with.
Also can be provided with the water tank air bleeding valve on the said water tank blast pipe, its outlet can be arranged in atmospheric environment, directly discharges to airspace.
Can be provided with the first water tank air bleeding valve 12 on the said water tank blast pipe; And be connected with water tank exhaust air accumulator 10; The top of said water tank exhaust air accumulator is connected with water tank gas storage blast pipe 11, and said water tank gas storage blast pipe is provided with the second water tank air bleeding valve 9, through the alternately opening and closing of the first water tank air bleeding valve and the second water tank air bleeding valve; The water tank upper gas that will discharge earlier enters in the water tank air accumulator; And then discharge to airspace from this air accumulator, the phenomenon of having avoided in line mode lower header internal pressure to descend has significantly thus reduced the waste of steam.
Can adopt the water tank exhaust control device to control the work of the said first water tank air bleeding valve and the second water tank air bleeding valve, under the state of the second water tank exhaust valve closure, open the first water tank air bleeding valve; Make the oxygen containing gas of said tank top under tank pressure, get into water tank exhaust air accumulator automatically; When water tank exhaust air accumulator internal pressure reaches established standards, close the first water tank air bleeding valve, open the second water tank air bleeding valve; Gas in the water tank exhaust air accumulator is discharged under the effect of jar internal pressure automatically; Again close the second water tank air bleeding valve then, open the first water tank air bleeding valve, get into next circulation; Said water tank exhaust control device is connected with the pressure sensor that is used to gather said water tank exhaust air accumulator internal pressure; Obtain said water tank exhaust air accumulator internal pressure signal through said pressure sensor, to carry out above-mentioned control according to water tank exhaust air accumulator internal pressure, its control outlet line connects the described first water tank air bleeding valve and the second water tank air bleeding valve respectively.
Said degassing tower top is typically provided with main exhaust.
Can be provided with main exhaust valve 4 on the said main exhaust, the outlet of said main exhaust is arranged in atmospheric environment, directly to airborne release.
Can be provided with first main exhaust valve 5 on the said main exhaust, and be connected with main exhaust air accumulator 7, the top of said main exhaust air accumulator can be connected with main gas storage blast pipe, can be provided with second main exhaust valve 8 on the said main gas storage blast pipe.
Can also main exhaust be divided into two-way, the one tunnel is the vertical pipe 3 that is provided with main exhaust valve, and another road is to adopt the above-mentioned non-direct delivery pipe 6 that the main exhaust air accumulator is set, and said first main exhaust valve is arranged on this non-direct delivery pipe (referring to Fig. 1).
Can adopt the main exhaust control device to control the work of said first main exhaust valve and second main exhaust valve, under the second main exhaust valve closing state, open first main exhaust valve; Make and get into the main exhaust air accumulator under the pressure of the oxygen containing gas in said degassing tower top in degassing tower automatically; When main exhaust air accumulator internal pressure reaches established standards, close first main exhaust valve, open second main exhaust valve; Gas in the main exhaust air accumulator is discharged under the effect of jar internal pressure automatically; Again close second main exhaust valve then, open first main exhaust valve, get into next circulation; Said main exhaust control device is connected with the pressure sensor that is used to gather said main exhaust air accumulator internal pressure; Obtain said main exhaust air accumulator internal pressure signal through said pressure sensor, to carry out above-mentioned control according to main exhaust air accumulator internal pressure, its control outlet line connects described first main exhaust valve and second main exhaust valve respectively.
In the practice, said main exhaust control device and said water tank exhaust control device can adopt same control device.
Claims (9)
1. thermal deaerator; Comprise the thermal deaerator body that constitutes by degassing tower and water tank; Said water tank is installed in the degassing tower bottom, and with degassing tower UNICOM, said degassing tower is provided with steam inlet pipe and water inlet pipe; The peripheral position that it is characterized in that said tank top is provided with one or more water tank exhaust outlets; Said one or more water tank exhaust outlet is connected in a water tank blast pipe, and the oxygen that will suppress in said tank top through said water tank exhaust outlet ejects, and the mode of discharging oxygen is continous way or batch (-type).
2. thermal deaerator as claimed in claim 1 is characterized in that said water tank blast pipe is connected in the discharge duct that said degassing tower top is provided with.
3. thermal deaerator as claimed in claim 1 is characterized in that said water tank blast pipe is provided with the water tank air bleeding valve, and its outlet is arranged in atmospheric environment.
4. thermal deaerator as claimed in claim 1; It is characterized in that said water tank blast pipe is provided with the first water tank air bleeding valve; And be connected with water tank exhaust air accumulator; The top of said water tank exhaust air accumulator is connected with water tank gas storage blast pipe, and said water tank gas storage blast pipe is provided with the second water tank air bleeding valve.
5. thermal deaerator as claimed in claim 4; It is characterized in that adopting the water tank exhaust control device to control the work of the said first water tank air bleeding valve and the second water tank air bleeding valve, under the state of the second water tank exhaust valve closure, open the first water tank air bleeding valve; Make the oxygen containing gas of said tank top under tank pressure, get into water tank exhaust air accumulator automatically; When water tank exhaust air accumulator internal pressure reaches established standards, close the first water tank air bleeding valve, open the second water tank air bleeding valve; Gas in the water tank exhaust air accumulator is discharged under the effect of jar internal pressure automatically; Again close the second water tank air bleeding valve then, open the first water tank air bleeding valve, get into next circulation; Said water tank exhaust control device is connected with the pressure sensor that is used to gather said water tank exhaust air accumulator internal pressure; Obtain said water tank exhaust air accumulator internal pressure signal through said pressure sensor, to carry out above-mentioned control according to water tank exhaust air accumulator internal pressure, its control outlet line connects the described first water tank air bleeding valve and the second water tank air bleeding valve respectively.
6. like claim 2,3,4 or 5 described thermal deaerators, it is characterized in that said degassing tower top is provided with main exhaust.
7. thermal deaerator as claimed in claim 6 is characterized in that said main exhaust is provided with main exhaust valve, and the outlet of said main exhaust is arranged in atmospheric environment.
8. thermal deaerator as claimed in claim 6; It is characterized in that said main exhaust is provided with first main exhaust valve; And be connected with the main exhaust air accumulator, and the top of said main exhaust air accumulator is connected with main gas storage blast pipe, and said main gas storage blast pipe is provided with second main exhaust valve.
9. thermal deaerator as claimed in claim 8 is characterized in that adopting the main exhaust control device to control the work of said first main exhaust valve and second main exhaust valve, under the second main exhaust valve closing state; Open first main exhaust valve, make to get into the main exhaust air accumulator under the pressure of the oxygen containing gas in said degassing tower top in degassing tower automatically, when main exhaust air accumulator internal pressure reaches established standards; Close first main exhaust valve; Open second main exhaust valve, the gas in the main exhaust air accumulator is discharged under the effect of jar internal pressure automatically, close second main exhaust valve then again; Open first main exhaust valve; Get into next circulation, said main exhaust control device is connected with the pressure sensor that is used to gather said main exhaust air accumulator internal pressure, obtains said main exhaust air accumulator internal pressure signal through said pressure sensor; To carry out above-mentioned control according to main exhaust air accumulator internal pressure, its control outlet line connects described first main exhaust valve and second main exhaust valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100863679A CN101691248B (en) | 2009-05-31 | 2009-05-31 | Method for improving deoxygenating effect of thermal deoxygenator and thermal deoxygenator using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100863679A CN101691248B (en) | 2009-05-31 | 2009-05-31 | Method for improving deoxygenating effect of thermal deoxygenator and thermal deoxygenator using same |
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| Publication Number | Publication Date |
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| CN101691248A CN101691248A (en) | 2010-04-07 |
| CN101691248B true CN101691248B (en) | 2012-07-18 |
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| CN2009100863679A Expired - Fee Related CN101691248B (en) | 2009-05-31 | 2009-05-31 | Method for improving deoxygenating effect of thermal deoxygenator and thermal deoxygenator using same |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959201A (en) * | 2006-08-23 | 2007-05-09 | 李树生 | Low level, heating power deaerator |
| CN101115553A (en) * | 2004-12-07 | 2008-01-30 | 华美化学有限公司 | Boiler feed water deaerator method and apparatus |
| CN101343092A (en) * | 2008-08-22 | 2009-01-14 | 李树生 | Deoxidation energy conservation method by heating energy conservation technological improved apparatus of deoxidation device by heating |
-
2009
- 2009-05-31 CN CN2009100863679A patent/CN101691248B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115553A (en) * | 2004-12-07 | 2008-01-30 | 华美化学有限公司 | Boiler feed water deaerator method and apparatus |
| CN1959201A (en) * | 2006-08-23 | 2007-05-09 | 李树生 | Low level, heating power deaerator |
| CN101343092A (en) * | 2008-08-22 | 2009-01-14 | 李树生 | Deoxidation energy conservation method by heating energy conservation technological improved apparatus of deoxidation device by heating |
Non-Patent Citations (1)
| Title |
|---|
| 李树生."北凝技术"在化工系统的应用.《中国能源》.2000,(第4期),第33-35页. |
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Effective date of registration: 20140731 Address after: 100011 Beijing City, Xicheng District, to teach a number field Patentee after: Li Shusheng Address before: 100011 Beijing City, Xicheng District, to teach a Changkou No. 1 No. Patentee before: Beijing Steam-Condense Dynamic Technology Co., Ltd. |
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