CN2730854Y - Vacuum deoxygenizer for boiler water - Google Patents
Vacuum deoxygenizer for boiler water Download PDFInfo
- Publication number
- CN2730854Y CN2730854Y CN 200420118713 CN200420118713U CN2730854Y CN 2730854 Y CN2730854 Y CN 2730854Y CN 200420118713 CN200420118713 CN 200420118713 CN 200420118713 U CN200420118713 U CN 200420118713U CN 2730854 Y CN2730854 Y CN 2730854Y
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- water
- valve
- vacuum
- pump
- tank body
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Abstract
The utility model relates to a vacuum deoxygenizer for the boiler water, and belongs to the technical field of the energy resource device. The device comprises a seal tank, a water inlet, a water inlet valve, a water outlet, a water pump, an air water separating valve, a vacuum pump, a pre-vacuum chamber, a vacuum meter, a seal tank blow down valve, a pre-vacuum chamber water drain valve and a water supply pipeline. One ends of the water inlet valve and the water pump are respectively communicated with the water inlet and the water outlet which are arranged on the tank body of the seal tank, and the other ends of the water inlet valve and the water pump are connected with a boiler water supply pipeline. The blow down valve is connected with a blow down opening which is arranged at the bottom of the tank body of the seal tank. The vacuum meter is connected on the upper part of the tank body of the seal tank through the pipeline. One end of the air water separating valve is connected to the air outlet of the upper part of the tank body of the seal tank, and the other end of the air water separating valve is connected to the pre-vacuum chamber. The pre-vacuum chamber is connected with the vacuum pump, and the bottom of the pre-vacuum chamber is provided with the water drain valve. The utility model can cause the oxygen content in the water to be smaller than 0. 1mg/L when the boiler water is in stable operating condition, and effectively solves the oxygen corrosion problem.
Description
Technical field
The utility model belongs to the energy resource apparatus and technology field, particularly a kind of boiler feed water de-aerator plant structure design.
Background technology
Dissolved oxygen in the feedwater normally causes heat power equipment corrosive major cause, and it can cause the oxygen corrosion between run duration and lay-off period of boiler and relevant device such as scatterer.For preventing and alleviate the oxygen corrosion of therrmodynamic system run duration, must carry out deoxygenation to oiler feed.Regulation feedwater dissolved oxygen content≤0.1mg/L during national Specification boiler nominal steam pressure≤1.6Mpa, dissolved oxygen content≤the 0.1mg/L of regulation feedwater when dissolved oxygen content≤0.05mg/L in regulation feedwater when vapor pressure is 1.6～2.5Mpa, hot water boiler rated output 〉=4.2Mw.Generally can adopt multiple mode deoxygenation, as: thermal de-aeration method, chemical deoxidizing, Deadsorbing and oxygen removing method, electrochemical deoxidization method and vacuum degassing process etc.Vacuum degassing process commonly used takes vapo(u)r blasting and jet of water method to obtain vacuum, but the equipment volume of these methods is big, and deaerating effect is poor when being used for normal temperature.
Summary of the invention
The purpose of this utility model is for overcoming the weak point of prior art,, a kind of boiler feed water vacuum deaerating plant is proposed, utilize water when boiling state Gas Solubility near zero characteristics to reach the boiler feed water deoxidation.
The boiler feed water vacuum deaerating plant that the utility model proposes comprises: sealed can, water-in and inlet valve, water outlet and water pump, gas-water separation valve, vacuum pump, prechamber, vacuum instrumentation, sealed can wash water valve, prechamber water discharge valve and water-supply line; Its annexation is: an end of described inlet valve is connected with the water-in on sealed can tank body top, the other end of this inlet valve links to each other with the boiler water supply pipeline, one end of described water pump is connected with the water outlet of sealed can tank body bottom, the other end of this water pump links to each other with the water-supply line of boiler, described sewage draining valve links to each other with the sewage draining exit that is located at sealing tank bottom, described vacuum instrumentation is by the top of pipe connection to the sealed can tank body, described gas-water separation valve one end is connected to the air outlet of sealing tank top, the other end is connected to prechamber, this prechamber links to each other with vacuum pump, and the bottom of this prechamber is provided with water discharging valve.
Above-mentioned each parts all can be selected known matured product for use.
The boiler feed water device for deoxidizing that the utility model proposes adopts a kind of new method to obtain vacuum, utilizes water boiling point lowering under vacuum condition, water reaches boiling point at normal temperatures, oxygen is overflowed from water, thereby reaches the order ground of deoxygenation, and a kind of like this device has practical significance.
The utility model can make the oxygen meltage of boiler feed water remain on below the 0.1mg/L under the system works steady state, is up to state standards to guarantee the boiler feed water oxygen level.
Description of drawings:
Fig. 1 is the utility model boiler feed water device for deoxidizing structural representation.
Embodiment
The boiler feed water device for deoxidizing structure drawings and Examples that the utility model proposes are described in detail as follows:
The present embodiment structure as shown in Figure 1, comprise sealed can 1, water outlet and water pump 2, sewage draining exit and valve 3, water-in and valve 4, vacuum instrumentation and connecting tube 5, pneumatic outlet and gas-water separation valve 6, prechamber 7, vacuum pump 8, prechamber water port and valve 9, boiler water supply pipeline 10, and the pipeline that is connected.
The sealed can 1 of present embodiment is the tank body of the born pressure of steel, tank body links to each other with water-supply line by water-in and valve 4, offer system by water outlet and water pump 2 water with deoxidation, vacuum instrumentation 5 arrives the top of tank body 1 in order to a monitoring jar interior vacuum tightness by pipe connection, the air outlet the other end that gas-water separation valve 6 one ends are connected to sealed can 1 top is connected to prechamber 7, and prechamber 7 links to each other with vacuum pump 8.Water discharging valve 9 is equipped with in the bottom of prechamber, and valve 9 can be opened when vacuum pump is shut down in order to the condensed water in the discharging prechamber.The bottom of tank body 1 is provided with sewage draining exit and valve 3, and valve 3 can discharge the impurity that is deposited in tank body 1 bottom when opening.Each advances, and outlet and valve and tank body all have good sealing to guarantee the acquisition and the maintenance of vacuum tightness.Supplementary feed enters the sealed can 1 of this device by inlet valve 4.Because vacuum pump and the formation vacuum in the sealed can that is operated in that goes out water pump, because the boiling point of water is relevant with pressure, the water in the vacuum tank is in boiling state at normal temperatures, and dissolved gases parses from water in the water.When water temperature residual gas content in jar internal pressure low more (being that vacuum tightness is high more) water regularly few more.The gas of separating out from water is taken away by vacuum pump by the gas-water separation valve, and the deaerated water that takes off peroxide flows out to system water supply by going out water pump 2.Vacuum pump 8 is extracted the gas acquisition in the sealed can 1 out and is kept vacuum tightness through prechamber 7 and gas-water separation valve 6.
The unlatching and the closure of each valve of this device cooperatively interact, and wherein a kind of feasible state is as shown in table 1:
Table 1
| The water intaking valve state | Go out the water pump state | The extraction valve state | |
| During the device water inlet | Open | Open | Open |
| During the device water outlet | Close | Open | Open |
| During the device exhaust | Close | Open | Open |
Adjust opening between each valve, close the time cooperation and can also obtain the needs that other combinations of states also can satisfy deoxidation.Owing to adopt the air-water mixture in the gas-water separation valve seal jar to have only gas can not overflow by the water that this valve is extracted out in effective protection sealed can by vacuum pump.Take off the water supply system of peroxide, the dissolved oxygen amount when whole waterworks working stability in the water has satisfied boiler feed water oxygen level standard less than 0.1mg/L.
Claims (1)
1, a kind of boiler feed water vacuum deaerating plant is characterized in that, this device comprises sealed can, water-in and inlet valve, water outlet and water pump, gas-water separation valve, vacuum pump, prechamber, vacuum instrumentation, sealed can wash water valve, prechamber water discharge valve and water-supply line; Its annexation is: an end of described inlet valve is connected with the water-in on sealed can tank body top, the other end of this inlet valve links to each other with the boiler water supply pipeline, one end of described water pump is connected with the water outlet of sealed can tank body bottom, the other end of this water pump links to each other with the water-supply line of boiler, described sewage draining valve links to each other with the sewage draining exit that is located at sealing tank bottom, described vacuum instrumentation is by the top of pipe connection to the sealed can tank body, described gas-water separation valve one end is connected to the air outlet of sealing tank top, the other end is connected to prechamber, this prechamber links to each other with vacuum pump, and the bottom of this prechamber is provided with water discharging valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118713 CN2730854Y (en) | 2004-10-15 | 2004-10-15 | Vacuum deoxygenizer for boiler water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118713 CN2730854Y (en) | 2004-10-15 | 2004-10-15 | Vacuum deoxygenizer for boiler water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2730854Y true CN2730854Y (en) | 2005-10-05 |
Family
ID=35051193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420118713 Expired - Fee Related CN2730854Y (en) | 2004-10-15 | 2004-10-15 | Vacuum deoxygenizer for boiler water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2730854Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616876A (en) * | 2012-04-12 | 2012-08-01 | 北京天麟汇通设备安装工程有限公司 | Device and method for vacuum dual-cavity degassing |
| CN101863547B (en) * | 2009-04-15 | 2012-08-08 | 中国石油天然气股份有限公司 | Method for continuously deoxidizing deionized water |
| 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 |
-
2004
- 2004-10-15 CN CN 200420118713 patent/CN2730854Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863547B (en) * | 2009-04-15 | 2012-08-08 | 中国石油天然气股份有限公司 | Method for continuously deoxidizing deionized water |
| CN102616876A (en) * | 2012-04-12 | 2012-08-01 | 北京天麟汇通设备安装工程有限公司 | Device and method for vacuum dual-cavity degassing |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20111015 |