CN110131701A - Thermal deoxygenizing apparatus and its method - Google Patents
Thermal deoxygenizing apparatus and its method Download PDFInfo
- Publication number
- CN110131701A CN110131701A CN201810129877.9A CN201810129877A CN110131701A CN 110131701 A CN110131701 A CN 110131701A CN 201810129877 A CN201810129877 A CN 201810129877A CN 110131701 A CN110131701 A CN 110131701A
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- Prior art keywords
- water
- steam
- spray head
- fluid spray
- deaerating plant
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Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 239000007921 spray Substances 0.000 claims abstract description 68
- 239000012530 fluid Substances 0.000 claims abstract description 59
- 238000006392 deoxygenation reaction Methods 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 238000000889 atomisation Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000008236 heating water Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 25
- 238000010586 diagram Methods 0.000 description 7
- 238000005273 aeration Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention discloses a kind of thermal deoxygenizing apparatus and its method, uses the form of two-fluid, with water or liquid, is used as power direct atomization with steam.Steam is heat source again simultaneously, thus can be heated to water or liquid；It had not only been used as power using steam, but also has done heat source, heated simultaneously during water or liquid are atomized, thus it is energy-efficient；Using a kind of two-fluid spray head, one end leads to steam, one end water flowing or liquid, and the evacuation port of the multiple two-fluid sprays of arrangement and oxygen in deaerating plant, what spray head sprayed is the water or liquid heated by steam atomization；The water droplet of the atomizing effect of spray head or the preferred median of the size of drop are between 50~200 microns.The present invention both did power using the pressure of steam；Steam is used as heat source again simultaneously, can effectively mix, and sufficiently exchanges heat；After small water droplet after heat exchange reaches deoxygenation temperature, the dissolved oxygen in water can effectively be made to be precipitated.The vibration caused by steam direct heating water is also avoided simultaneously, forms the negative elements for influencing equipment operation.
Description
Technical field
The invention belongs to thermal de-aeration fields, and in particular to a kind of thermal deoxygenizing apparatus and its method can be widely used
In the various occasions for heating liquid using steam to liquid；Such as the occasions, cigarette such as thermal de-aeration technique of the water supply of boiler
The occasion of the heating atomizations such as pipe tobacco flavour fragrance heating atomization sprinkling.
Background technique
Traditional water quality thermal de-aeration generallys use the mode of Fig. 1, and steam is arranged in deoxygenation head lower part, and water, which is arranged in, to be removed
Oxygen head top；Centre is that the anisotropic small pieces of stainless steel are made into filler；Water is fallen in a manner of water droplet by modes such as sub-sieves, is steamed
Vapour is uniformly up walked by modes such as steam separating disks；During this, the anisotropic small pieces of steam heating stainless steel are made into filler, water
It is dropped in and is heated above, water heating is made to reach the deoxygenation temperature under corresponding atmospheric pressure, the oxygen evolution contained in water, from deoxygenation
Atmosphere is connected in the exhaust valve of head；Since in the hysteresis quality of control, water body thermal control, thermal inertia is very big, control precision compared with
Difference, waste of steam are larger；Although later period has some patents to some improvement of the method for thermal de-aeration, but be mostly the water distributing tray water
Or sub-sieve is changed to spray head, and the particle of water is made to become smaller, and reinforces the effect of heat exchange；Or steam in the lower end for the water for needing deoxygenation
Water etc. is heated, but has the problems such as operating condition continuity is bad, equipment vibration is big, and maintenance is not easy；Automatic steam control cannot quantify simultaneously
Deng waste of steam is big.
Summary of the invention
For above one or more technical problems, the present invention is intended to provide a kind of thermal deoxygenizing apparatus and its method.
The operation principle of the present invention is that: during water is atomized, surface area will be increased ten thousand times (with the water droplet of atomization,
Water droplet of the median based on 80~100 microns, traditional is calculated by 3 millimeters) more than, temperature this for water thermal de-aeration is hot
Transfer mode mainly conducts, the increase of surface area, mostly important to the exchange of heat；The thermal energy of steam effectively absorbs simultaneously, can
Same deoxygenation process is avoided to scatter and disappear.
The spray head of two-fluid, do power is usually compressed air etc..Here, power both is done using the pressure of steam；Together
When, steam is used as heat source again, and can effectively mix with steam, sufficiently exchanges heat；After small water droplet after heat exchange reaches deoxygenation temperature, energy
Effectively it is precipitated the dissolved oxygen in water.Related design is also avoided simultaneously, is shaken caused by steam direct heating water, shadow is formed
Ring the negative elements of many equipment operations；
On the one hand technical solution of the present invention provides a kind of thermodynamic deoxidizing method, use two-fluid spray head, two-fluid spray
Head first input end water flowing or liquid, the second input terminal lead to steam, are sprayed using the pressure of the steam as the two-fluid
The power of head, steam is as heat source；Two-fluid spray head is arranged in deaerating plant, spray head utilizes barber into deaerating plant
Change water spray or liquid, oxygen evolution is simultaneously discharged by evacuation port.
Further, the drop that two-fluid spray head sprays falls in deaerating plant under condensation after condensing to deoxygenation control temperature
In.
Further, air pressure is set as 0.025MPa gauge pressure or less in the deaerating plant.
Further, the atomized drop of the two-fluid spray head is sized to, and median diameter is at 50~200 microns
Between.
The another aspect of technical solution of the present invention provides a kind of thermal deoxygenizing apparatus comprising two-fluid spray head, deoxygenation
Device, water route, steam pipework, oxygen evacuation port；
The two-fluid spray head first input end is connected to water route, and the second input terminal is connected to steam pipework；
The multiple two-fluid spray heads of arrangement in the deaerating plant, the deaerating plant are equipped with the evacuation port of oxygen.
Further, the two-fluid spray head selects going out for atomized drop of the median diameter between 50~200 microns
Hole.
Further, evacuation port is equipped with exhaust-valve, and oxygen is discharged by exhaust-valve.
Further, the deaerating plant is deoxygenation water tank or deaeration pump.
It further, further include controller, water temperature sensor, water pressure sensor, steam pressure sensor, electromagnetism
Valve, electric control valve, differential pressure of water level sensor；
- the controller connects water temperature sensor, water pressure sensor, steam pressure sensor, solenoid valve, electricity
Dynamic regulating valve, differential pressure of water level sensor；
- the water route connects water pressure sensor, and the steam pipework connects steam pressure sensor, electric control valve；
Solenoid valve is respectively equipped between-two-fluid the spray head and water route, steam pipework；
Differential pressure of water level sensor is equipped in-the deaerating plant.
Further, the controller includes deaerating plant water lev el control module, the configuration of deaerating plant water lev el control module
Are as follows: when water level is lower than setting water level value, timing increases by one group of two-fluid spray head；It is fixed after water level more than setting water level value
When reduce by one group of two-fluid spray head.
Further, the controller includes deaerating plant temperature control modules, the deaerating plant temperature control modules
It is configured to control using PID control and by the discharge characteristic of two-fluid spray head, discharge characteristic relevant parameter includes: fluid pressure
Power, the size of water droplet atomization median, two-fluid spray head flow value.
After small water droplet relative steam temperature condenses to deoxygenation control temperature, fallen under condensation in deaerated water storage tank, oxygen
Air elutriation goes out, and the precipitation of oxygen and water temperature are related to the pressure of water surface；In general, 100 DEG C of water, under 0.025MPa gauge pressure,
Oxygen can be precipitated, also, pressure is lower, and it is better to be precipitated, and deoxygenation is cleaner, in the space of deaeration pump, passes through with vapor
Exhaust-valve excludes；To complete the process of soft water deoxygenation；Thermodynamic deoxidizing method of the invention passes through suitable evacuation port or emptying
Caliber pipe leads directly to atmosphere, and atmidometer is smaller, and deoxygenation is cleaner.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the water quality thermal deoxygenizing apparatus of the prior art；
Wherein: 101-water inlet pipes；102-steam water inlet pipes；103-water distributing trays；104-metal filler materials；105-points
Vapour disk；107-safety valves；108-exhaust-valves；109-temperature sensors；10 water level sensors；11-deoxygenation water outs；
Fig. 2 is the structural schematic diagram of one embodiment of thermal deoxygenizing apparatus of the invention；
Wherein: 1-water pump；2-water pressure sensors；3-frequency converters；4-motors；5-steam reducing valves；6-is electronic
Regulating valve；7-steam pressure sensors；8-solenoid valves；9-evacuation ports (oxygen overfall)；10—
Deoxygenation safety valve；11-water temperature sensors；12-differential pressure of water level sensors；13-two-fluid spray heads；
Fig. 3 is the structural schematic diagram of the tape controller of one embodiment of thermal deoxygenizing apparatus of the invention；
Fig. 4 is the control schematic diagram of water tank coolant controlled one embodiment of the invention；
Fig. 5 is the control principle schematic diagram of the controlled one embodiment of feed pressure of the invention；
Fig. 6 is the control principle schematic diagram of one embodiment controlled to steam pressure of the invention；
Fig. 7 is the discharge characteristic figure that one embodiment of the present of invention implements two-fluid spray head used by controlling.
Specific embodiment
The present invention is further described now in conjunction with drawings and the specific embodiments.
Embodiment 1
As shown in Fig. 2, jet chimney and waterpipe are introduced directly into access two-fluid spray head；Two-fluid spray head is connected to deoxygenation
On water tank, spray head is sprayed water into water tank using steam atomization.
Embodiment 2:
As shown in figure 3, cistern water level is controlled, control principle such as Fig. 3；With the discharge characteristic figure of two-fluid spray head, such as Fig. 7,
Characteristic is realized with correlation PLC or instrument is realized, required deaerating effect can be obtained.
The control of deoxygenation case water level is as shown in Figure 2: PLC or water, vapour solenoid valve under instrument control, when water level is low,
Timing such as each control period (such as every 3s) increases by one group；After water level, periodically as each control period (such as every 3s)) is reduced
One group；It is all right using PID control or the control of more water (double water) position.It is made better, Queue Algorithm, " advanced elder generation can also be used
Out ", spray head is recycled, inspects periodically and maintain replacement conducive to equipment.
The control of deoxygenation temperature is controlled by the correlative flow characteristic of two-fluid spray head.Such as figure seven；The left end of coordinate is stream
Body pressure, right end are the medians of the size atomization of water droplet, and lower part is the flow value of spray head.It can be seen that the size after atomization is got over
Small, the smaller temperature of the water flow of spray head is also higher；When we make power and heat source of steam, steam per kilogram contains
Thermal energy make the water of how many kilograms of certain temperatures, be heated to it is desirable that temperature be fixed, linear.The height of water temperature,
The pressure that thus can also use steam (or water) completely is adjusted with the one of amount of increase (reduction)；It can also use double
The characteristic curve numerical value of fluid nozzle reduces the pressure of the two, reduces atomizing particle and flow, increases water temperature；The block diagram of adjusting
As shown in Figure 4.
Embodiment 3:
Thermodynamic deoxidizing method uses two-fluid spray head, two-fluid spray head first input end water flowing or liquid, the second input
Logical steam is held, the power using the pressure of the steam as the two-fluid spray head, steam is as heat source；Two-fluid is sprayed
Head is arranged in deaerating plant, and spray head utilizes steam atomization water spray or liquid into deaerating plant, and oxygen evolution simultaneously passes through emptying
Mouth discharge.
Embodiment 4:
As different from Example 3, the drop that two-fluid spray head sprays, after condensing to deoxygenation control temperature, condensation is fallen
In deaerating plant.
Embodiment 4:
As different from Example 3, pressure control is 0.025MPa gauge pressure hereinafter, temperature is preferably controlled in deaerating plant
100 DEG C or more.Or other PID control numerical value.
Embodiment 5:
As different from Example 3, the atomized drop of the two-fluid spray head is sized to, and median diameter is 50
Between~200 microns.
Embodiment 6:
Thermal deoxygenizing apparatus comprising two-fluid spray head, deaerating plant, water route, steam pipework, oxygen evacuation port；
The two-fluid spray head first input end is connected to water route, and the second input terminal is connected to steam pipework；
The multiple two-fluid spray heads of arrangement in the deaerating plant, the deaerating plant are equipped with the evacuation port of oxygen.
Embodiment 7:
As different from Example 6, atomization of the two-fluid spray head selection median diameter between 50~200 microns
Drop portals.
Embodiment 7:
As different from Example 6, evacuation port is equipped with exhaust-valve, and oxygen is discharged by exhaust-valve.Deaerating plant is deoxygenation
Water tank or deaeration pump.
Embodiment 7:
It as different from Example 6, further include controller, water temperature sensor, water pressure sensor, steam pressure biography
Sensor, solenoid valve, electric control valve, differential pressure of water level sensor；
- the controller connects water temperature sensor, water pressure sensor, steam pressure sensor, solenoid valve, electricity
Dynamic regulating valve, differential pressure of water level sensor；
- the water route connects water pressure sensor, and the steam pipework connects steam pressure sensor, electric control valve；
Solenoid valve is respectively equipped between-two-fluid the spray head and water route, steam pipework；
Differential pressure of water level sensor is equipped in-the deaerating plant.
Embodiment 8:
As different from Example 7, the controller includes deaerating plant water lev el control module, deaerating plant water level control
When module is configured that water level lower than setting water level value, timing increases by one group of two-fluid spray head；More than the water of setting water level value
Behind position, timing reduces by one group of two-fluid spray head.
Embodiment 9:
As different from Example 7, the controller includes deaerating plant temperature control modules, the deaerating plant temperature
Control module is configured to control using PID control and by the discharge characteristic of two-fluid spray head, and discharge characteristic relevant parameter includes:
Fluid pressure, the size of water droplet atomization median, two-fluid spray head flow value.
Embodiment 9:
As different from Example 7, the deoxygenation temperature control modules include: that total deoxygenation temperature setting module connection is total
Pid control module divides two-way to be connected in parallel, and the first via, which connects, gives steam pressure setting module, and vapour pid control module is given in connection, then
Regulating valve is connected, steam pressure detection module is given in connection, will give steam pressure to steam pipe road pressure feedback to vapour pid control module is given
Detection module connects deaerated water thermal module.
Second tunnel connect feed pressure setting module, connect water supply pid control module, connection frequency converter, motor, pump,
Feed pressure detection module is connected, by feedwater piping pressure feedback to water supply pid control module, the connection of feed pressure detection module
Deaerated water thermal module；Deaerated water thermal module gives the pressure feedback of deaerated water to total deoxygenation temperature setting module, deoxygenation water temperature
It spends module and exports deaerated water data.
In several embodiments provided herein, it should be understood that disclosed module, system can pass through it
Its mode is realized.For example, module described above, system embodiment are only schematical, for example, the module is drawn
Point, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can
To combine or be desirably integrated into another equipment, or some features can be ignored or not executed.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of this case rather than its limitations；Although
This case is described in detail referring to preferred embodiment, it should be understood by those ordinary skilled in the art that: still can be with
It modifies to the specific embodiment of this case or some technical features can be equivalently replaced；Without departing from this case technical side
The spirit of case should all cover in the claimed technical proposal scope of this case.
Claims (11)
1. a kind of thermodynamic deoxidizing method, which is characterized in that use two-fluid spray head, two-fluid spray head first input end water flowing or liquid
Body, the second input terminal lead to steam, the power using the pressure of the steam as the two-fluid spray head, and steam is as warm
Source；Two-fluid spray head is arranged in deaerating plant, spray head utilizes steam atomization water spray or liquid, oxygen analysis into deaerating plant
It is discharged out and by evacuation port.
2. a kind of thermodynamic deoxidizing method according to claim 1, which is characterized in that the drop that two-fluid spray head sprays, it is cold
After coagulating deoxygenation control temperature, fallen in deaerating plant under condensation.
3. a kind of thermodynamic deoxidizing method according to claim 1, which is characterized in that air pressure is set as in the deaerating plant
Below 0.025MPa gauge pressure.
4. a kind of thermodynamic deoxidizing method according to any one of claims 1 to 3, which is characterized in that the two-fluid spray head
Atomized drop be sized to, median diameter is between 50~200 microns.
5. a kind of thermal deoxygenizing apparatus, which is characterized in that
Including two-fluid spray head, deaerating plant, water route, steam pipework, oxygen evacuation port；
The two-fluid spray head first input end is connected to water route, and the second input terminal is connected to steam pipework；
The multiple two-fluid spray heads of arrangement in the deaerating plant, the deaerating plant are equipped with the evacuation port of oxygen.
6. a kind of thermal deoxygenizing apparatus according to claim 5, which is characterized in that the two-fluid spray head selects median
Atomized drop of the diameter between 50~200 microns portals.
7. a kind of thermal deoxygenizing apparatus according to claim 5, which is characterized in that evacuation port is equipped with exhaust-valve, and oxygen is logical
Cross exhaust-valve discharge.
8. a kind of thermal deoxygenizing apparatus according to claim 5, which is characterized in that the deaerating plant is deoxygenation water tank
Or deaeration pump.
9. according to a kind of described in any item thermal deoxygenizing apparatus of claim 5 to 8, which is characterized in that further include controller, water
Warm temperature sensor, water pressure sensor, steam pressure sensor, solenoid valve, electric control valve, differential pressure of water level sensor；
- the controller connects water temperature sensor, water pressure sensor, steam pressure sensor, solenoid valve, electric adjustable
Save valve, differential pressure of water level sensor；
- the water route connects water pressure sensor, and the steam pipework connects steam pressure sensor, electric control valve；
Solenoid valve is respectively equipped between-two-fluid the spray head and water route, steam pipework；
Differential pressure of water level sensor is equipped in-the deaerating plant.
10. a kind of thermal deoxygenizing apparatus according to claim 9, which is characterized in that the controller includes deaerating plant
Water lev el control module, when deaerating plant water lev el control module is configured that water level lower than setting water level value, timing increases by one group
Two-fluid spray head；After water level more than setting water level value, timing reduces by one group of two-fluid spray head.
11. a kind of thermal deoxygenizing apparatus according to claim 9, which is characterized in that the controller includes deaerating plant
Temperature control modules, the deaerating plant temperature control modules are configured to using PID control and by the flow of two-fluid spray head spy
Property control, discharge characteristic relevant parameter include: Fluid pressure, the median of the size of water droplet atomization, two-fluid spray head stream
Magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129877.9A CN110131701B (en) | 2018-02-08 | 2018-02-08 | Thermal deoxidizing device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129877.9A CN110131701B (en) | 2018-02-08 | 2018-02-08 | Thermal deoxidizing device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131701A true CN110131701A (en) | 2019-08-16 |
| CN110131701B CN110131701B (en) | 2024-05-28 |
Family
ID=67567413
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810129877.9A Active CN110131701B (en) | 2018-02-08 | 2018-02-08 | Thermal deoxidizing device and method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2242672C1 (en) * | 2003-04-01 | 2004-12-20 | Зимин Борис Алексеевич | Deaeration unit |
| CN201954513U (en) * | 2011-03-09 | 2011-08-31 | 南京华电节能环保设备有限公司 | Heat transfer oil steam generator |
| CN103292311A (en) * | 2013-05-31 | 2013-09-11 | 际华三五三九制鞋有限公司 | Heat filler type deaerator with stable deaerating function and atomizing function |
| US20170211804A1 (en) * | 2014-07-24 | 2017-07-27 | Joint-Stock Company Scientific Research And Design Institute For Energy Technologies Atomproekt | Deaerator (options) |
| CN208025494U (en) * | 2018-02-08 | 2018-10-30 | 红塔烟草(集团)有限责任公司 | Thermal deoxygenizing apparatus |
-
2018
- 2018-02-08 CN CN201810129877.9A patent/CN110131701B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2242672C1 (en) * | 2003-04-01 | 2004-12-20 | Зимин Борис Алексеевич | Deaeration unit |
| CN201954513U (en) * | 2011-03-09 | 2011-08-31 | 南京华电节能环保设备有限公司 | Heat transfer oil steam generator |
| CN103292311A (en) * | 2013-05-31 | 2013-09-11 | 际华三五三九制鞋有限公司 | Heat filler type deaerator with stable deaerating function and atomizing function |
| US20170211804A1 (en) * | 2014-07-24 | 2017-07-27 | Joint-Stock Company Scientific Research And Design Institute For Energy Technologies Atomproekt | Deaerator (options) |
| CN208025494U (en) * | 2018-02-08 | 2018-10-30 | 红塔烟草(集团)有限责任公司 | Thermal deoxygenizing apparatus |
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| Publication number | Publication date |
|---|---|
| CN110131701B (en) | 2024-05-28 |
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