CN202548670U - Thermal deoxygenator control system - Google Patents
Thermal deoxygenator control system Download PDFInfo
- Publication number
- CN202548670U CN202548670U CN2011205319212U CN201120531921U CN202548670U CN 202548670 U CN202548670 U CN 202548670U CN 2011205319212 U CN2011205319212 U CN 2011205319212U CN 201120531921 U CN201120531921 U CN 201120531921U CN 202548670 U CN202548670 U CN 202548670U
- Authority
- CN
- China
- Prior art keywords
- control system
- water
- deoxygenation
- thermal deaerator
- thermal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model relates to a thermal deoxygenator control system which includes a liquidometer and a temperature sensor. The thermal deoxygenator control system is characterized by also including a first solenoid valve and a second solenoid valve. The thermal deoxygenator control system is simple in control mode and is easy to adjust. Beside, the thermal deoxygenator control system is energy-saving and steam-saving, is small in investment, and has a wide market prospect.
Description
Technical field
The utility model relates to a kind of control system, is specifically related to a kind of thermal deaerator control system.
Background technology
Oxygen-eliminating device is as the equipment of driving away dissolved oxygen DO contained in the boiler feed water, avoids oxygen corrosion with the protection boiler.The deoxygenation of feedwater is that station boiler or Industrial Boiler prevent the main method of corroding.In container, the gas flow that is dissolved in the water be with the water surface on gas be divided into direct ratio.Adopt the method for thermal de-aeration, promptly come heated feed water, improve the temperature of water with steam; Make that the partial pressure of steam progressively increases on the water surface, the partial pressure of dissolved gas then reduces gradually, and the gas that is dissolved in the water is just constantly overflowed; When water is heated to the boiling temperature under the relevant pressure, all water vapour on the water surface, the partial pressure of dissolved gas is zero; Water no longer has the ability of dissolved gas, that is the gas that is dissolved in the water, and comprises that oxygen all can be removed.The effect of deoxygenation is decided by whether add to the boiling temperature under the relevant pressure to feedwater on the one hand, is decided by the eliminating speed of dissolved gas on the other hand, and the surface area contacted size of this speed and water and steam has very big relation.
According to the dissolution characteristics of gas in the water, want when any gas is removed in the water, as long as this gas that exists on the water surface is removed, therefore hope to get rid of all gases in the water, have only water vapour on the best water surface and do not have other gas.Thermal de-aeration heats water to boiling point exactly, and the solubleness of oxygen reduces and overflows, and the oxygen that produces on the water surface is got rid of again, and makes to be full of steam, and water oxygen gas is constantly overflowed, and guarantees that the feedwater oxygen level reaches the feed-water quality standard-required.
Thermal deaerator: in order to guarantee to have only water vapour to exist on the water surface, must heat water to boiling temperature (promptly carrying out under 1.02 barometric absolute pressures), claim the atmospheric-type thermodynamic deoxidizing device again at this deaeration plant at a little higher than big device pressure.
The thermal deaerator control system of prior art, as shown in Figure 2, comprise liquid level gauge, temperature sensor and two electric control valves, the second motorized valve S1 ' carries out switch according to design temperature; The second motorized valve S2 ' carries out switch according to the water level of setting; And two motorized valves all are set with manual cross-over valve.The classic method control mode is complicated, and the bad control of regulated value is not energy-conservation, waste steam, and water pump needs standard-sized sheet, takes electricity, and investment is big.
The utility model content
The purpose of the utility model provides a kind of thermal deaerator control system, can solve control mode complicacy in the prior art, and the bad control of regulated value is not energy-conservation, waste steam, and water pump needs standard-sized sheet, takes electricity, invests big problem.
To above problem, the utility model proposes following scheme:
The thermal deaerator control system comprises deoxygenation water tank, liquid level gauge and temperature sensor with water inlet pipe and rising pipe, it is characterized in that, also comprises first solenoid valve and second solenoid valve.
Preferably, said first solenoid valve is according to the height and deoxygenation pump while switch of water level; Said second solenoid valve carries out open and close according to design temperature.
Preferably, two solenoid valves all have manual switch.
Preferably, on the said water inlet pipe water level transmitter and temperature transmitter are installed.
Preferably, said deoxygenation water tank is connected with balance pipe.
Preferably, also comprise measurement instrument.
Preferably, said measurement instrument comprises tensimeter, the tensimeter before and after the steam pipe decompression and thermometer, the gauge glass on the deoxygenation water tank and the thermometer on deoxygenation tank inlet pipe and the rising pipe that vapor pressure is used in the supervision deoxygenation head.
The thermal deaerator control system of the utility model, control mode is simple, regulates easyly, energy-conservation, does not waste steam, invests for a short time, has vast market prospect.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 is the thermal deaerator control system of present embodiment;
Fig. 2 is traditional thermal deaerator control system;
1 is exhausr port among the figure, and 2 is the admission port, and 3 is liquid level gauge, and 4 is the steam inlet, and 5 is temperature sensor.
Embodiment
Embodiment
As shown in Figure 1, a kind of thermal deaerator control system comprises liquid level gauge 3, temperature sensor 5 and two solenoid valves, and two solenoid valves are respectively the first solenoid valve S1 and the second solenoid valve S2.The said first solenoid valve S1 is according to the height and deoxygenation pump while switch of water level; The said second solenoid valve S2 carries out open and close according to design temperature; Two solenoid valves all have manual switch.
The thermal deaerator steam consumption is calculated
DQ＝(5～10％)·G(i2-i1)/(i-i2)0.98kg/h
Maximum amount of water, kg/h are handled in the G-deoxygenation in the formula; The i2-oxygen-eliminating device goes out the enthalpy of saliva, kcal/kg;
I1-gets into the enthalpy of oxygen-eliminating device water, kcal/kg; I-gets into the enthalpy of oxygen-eliminating device steam, kcal/kg;
0.98-oxygen-eliminating device efficient;
Thermal deaerator should be placed on the feed pump top, and the discrepancy in elevation of deoxygenation water tank lowest water level and feed pump centreline space should be not less than 6～7 meters.4.5 meters of boiler room civil engineering structures can not satisfy discrepancy in elevation requirement, and design adopts cooling measure to solve; Get into the preceding feedwater of oxygen-eliminating device mixing temperature, generally be not less than 70 ℃, preferably 80 ℃; Water level transmitter and temperature transmitter are installed on the water inlet pipe; The deoxygenation water tank is connected with balance pipe; Measurement instrument comprises tensimeter, the tensimeter before and after the steam pipe decompression and thermometer, the gauge glass on the deoxygenation water tank and the thermometer on deoxygenation tank inlet pipe and the rising pipe that vapor pressure is used in the supervision deoxygenation head.
When replenishing colder in a large number chemical treatment water, should send to as far as possible equably, and between the oxygen-eliminating device of several paired runnings, suitably distribute.In the middle of preferably being accumulated in earlier, steam condensate in the water storage tank, then these condensate are sent into oxygen-eliminating device equably before sending into oxygen-eliminating device, to guarantee the stable of oxygen-eliminating device load.
Above embodiment purpose is to explain the utility model, and the protection domain of unrestricted the utility model, all fall in the protection domain of the utility model in the simple transformation of under the condition of the utility model spiritual principles, making.
Claims (7)
1. a thermal deaerator control system comprises deoxygenation water tank, liquid level gauge and temperature sensor with water inlet pipe and rising pipe, it is characterized in that, also comprises first solenoid valve and second solenoid valve.
2. thermal deaerator control system according to claim 1 is characterized in that, said first solenoid valve is according to the height and deoxygenation pump while switch of water level; Said second solenoid valve carries out open and close according to design temperature.
3. thermal deaerator control system according to claim 1 is characterized in that, two solenoid valves all have manual switch.
4. thermal deaerator control system according to claim 1 is characterized in that, water level transmitter and temperature transmitter are installed on the said water inlet pipe.
5. thermal deaerator control system according to claim 1 is characterized in that, said deoxygenation water tank is connected with balance pipe.
6. thermal deaerator control system according to claim 1 is characterized in that, also comprises measurement instrument.
7. thermal deaerator control system according to claim 6; It is characterized in that said measurement instrument comprises tensimeter, the tensimeter before and after the steam pipe decompression and thermometer, the gauge glass on the deoxygenation water tank and the thermometer on deoxygenation tank inlet pipe and the rising pipe that vapor pressure is used in the supervision deoxygenation head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205319212U CN202548670U (en) | 2011-12-19 | 2011-12-19 | Thermal deoxygenator control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205319212U CN202548670U (en) | 2011-12-19 | 2011-12-19 | Thermal deoxygenator control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548670U true CN202548670U (en) | 2012-11-21 |
Family
ID=47169278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205319212U Expired - Fee Related CN202548670U (en) | 2011-12-19 | 2011-12-19 | Thermal deoxygenator control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202548670U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216819A (en) * | 2013-03-29 | 2013-07-24 | 中冶南方工程技术有限公司 | Method and system for controlling pressure release of novel evaporative cooling deaerator |
| 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 |
| CN114110557A (en) * | 2021-11-26 | 2022-03-01 | 河北大唐国际唐山北郊热电有限责任公司 | Automatic liquid level adjusting system and method for deaerator |
-
2011
- 2011-12-19 CN CN2011205319212U patent/CN202548670U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216819A (en) * | 2013-03-29 | 2013-07-24 | 中冶南方工程技术有限公司 | Method and system for controlling pressure release of novel evaporative cooling deaerator |
| CN103216819B (en) * | 2013-03-29 | 2015-09-02 | 中冶南方工程技术有限公司 | Vaporizing cooling oxygen-eliminating device pressure diffuses control method and system thereof |
| 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 |
| CN114110557A (en) * | 2021-11-26 | 2022-03-01 | 河北大唐国际唐山北郊热电有限责任公司 | Automatic liquid level adjusting system and method for deaerator |
| CN114110557B (en) * | 2021-11-26 | 2024-03-08 | 河北大唐国际唐山北郊热电有限责任公司 | Automatic liquid level adjusting system and method for deaerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2921272A1 (en) | Pump-type autoclave system and steam and pressure supply method thereof | |
| CN202548670U (en) | Thermal deoxygenator control system | |
| CN103292311A (en) | Heat filler type deaerator with stable deaerating function and atomizing function | |
| CN204201873U (en) | A kind of boiler deoxidizing method equipment of novel energy-conserving | |
| US9579820B2 (en) | Solar autoclave equipment | |
| CN203586854U (en) | Steam waste heat recycling system | |
| CN205037807U (en) | Utilize steam heat transfer system of steam ejector exhaust steam recovery | |
| CN203551271U (en) | Non-condensable gas drainage rate experimental measuring device | |
| CN207831333U (en) | A kind of steam feed pump steam exhaust recovering device | |
| CN205090364U (en) | Spent steam waste heat utilization equipment suitable for evaporate pressure cauldron | |
| CN204529579U (en) | Chemical plant wastewater treatment unit | |
| CN204874479U (en) | White spirit distillation plant | |
| CN203273854U (en) | Novel clean-steam generator | |
| CN204313382U (en) | Desuperheat combined type heating heat-exchange unit | |
| CN107676841B (en) | Flue gas waste heat recovery method for heating heat supply network water with different pressures | |
| CN203598507U (en) | Treatment equipment of molasses alcohol waste liquid | |
| CN105240828A (en) | Thermal deaerator | |
| CN204853436U (en) | LNG waste boiler steam pocket feedwater deoxidization system | |
| CN204141926U (en) | A kind of desalted water adjusting device of raw gas intercooler | |
| CN204806369U (en) | Energy -saving thermal de aeration ware | |
| CN205191543U (en) | Thermal deoxidizing device | |
| CN204051019U (en) | Steam secondary cooling-down type liquid ammonia evaporator | |
| CN204554781U (en) | A kind of automatic exhaust device of oxygen-eliminating device | |
| CN203323104U (en) | Exhaust waste heat recycling device of deaerator | |
| CN204005905U (en) | A kind of boiler waste gas Heat Treatment use device |
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: 20121121 Termination date: 20131219 |