CN113860414A - Heat supply first station condensation return water nitrogen regulation deoxidization system - Google Patents
Heat supply first station condensation return water nitrogen regulation deoxidization system Download PDFInfo
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- CN113860414A CN113860414A CN202111029218.6A CN202111029218A CN113860414A CN 113860414 A CN113860414 A CN 113860414A CN 202111029218 A CN202111029218 A CN 202111029218A CN 113860414 A CN113860414 A CN 113860414A
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 230000005494 condensation Effects 0.000 title claims description 4
- 238000009833 condensation Methods 0.000 title claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 245
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 117
- 238000011084 recovery Methods 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000004064 recycling Methods 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000005273 aeration Methods 0.000 claims description 57
- 239000007789 gas Substances 0.000 claims description 29
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 13
- 238000007667 floating Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 abstract description 48
- 229910052760 oxygen Inorganic materials 0.000 abstract description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 46
- 230000000694 effects Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000002209 hydrophobic effect Effects 0.000 description 33
- 230000002829 reductive effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a heat supply first station condensed water nitrogen adjusting and deoxidizing system which comprises a heating system, a recovery tank, a condensed water system and a nitrogen supply device, wherein the heating system is provided with a water outlet; the recovery tank is provided with a water inlet, a water outlet and a recovery cavity, and the water inlet is communicated with the water outlet; the condensed water system comprises a water pump, the water pump is provided with an inlet, and the inlet is communicated with a water outlet; the nitrogen supply device is used for discharging nitrogen into the recovery cavity. The technical scheme provided by the invention can solve the problem that the dissolved oxygen of the condensed water exceeds the standard from the source, and is beneficial to adjusting the pressure at the recycling cavity when the nitrogen supply device blows nitrogen into the recycling cavity, so that the pressure at the inlet is in a positive pressure state, and the treatment effect of the dissolved oxygen is favorably optimized.
Description
Technical Field
The invention relates to the technical field of heat supply station condensed water treatment, in particular to a heat supply initial station condensed water nitrogen adjusting and deoxidizing system.
Background
The heating initial station of the thermal power plant is easy to cause the dissolved oxygen amount of hydrophobic (namely condensed water) to increase along with the increase of the heating load during the operation. When the dissolved oxygen of the hydrophobic water rises, the whole steam-water circulating system is easy to corrode, and the pipeline of a condensed water system is seriously corroded, so that accidents such as pipeline leakage and the like are caused; in addition, the water-repellent dissolved oxygen is too high, which causes unqualified dissolved oxygen in the feed water, causes corrosion to the whole feed water system, the boiler steam-water system and the steam turbine body, and reduces the service life of the equipment.
In contrast, in the conventional heat supply head station, for example, the heat exchanger water pump is changed to a brine seal, the heat exchanger condensate recovery tank exhaust pipe is provided with a U-shaped water seal, a seal tape is attached to a joint portion such as a heat exchanger condensate system flange, the heat exchanger water pump is changed to a self-seal, and the heat exchanger condensate recovery tank is introduced with steam to raise the pressure, and the like, and the treatment work is performed after dissolved oxygen enters the condensate system, and the effect is very small.
Disclosure of Invention
The invention mainly aims to provide a heat supply first station condensed water nitrogen adjusting and deoxidizing system, and aims to solve the problem that the treatment effect of the dissolved oxygen of the condensed water in the traditional heat supply first station is poor.
In order to achieve the purpose, the invention provides a heat supply first station condensed water nitrogen regulating and deoxidizing system, which comprises:
the heating system is provided with a water outlet;
the recycling tank is provided with a water inlet, a water outlet and a recycling cavity communicated with the water inlet and the water outlet, and the water inlet is communicated with the water outlet;
a condensate system including a water pump having an inlet in communication with the water outlet; and the number of the first and second groups,
and the nitrogen supply device is used for discharging nitrogen into the recovery cavity.
Optionally, the heating initial station condensed water nitrogen regulation oxygen removal system further comprises at least one valve body, and the valve body is selectively arranged at least one of the water outlet, the water inlet and the water outlet; and/or the presence of a gas in the gas,
the heating first station condensed water nitrogen adjusting and deoxidizing system further comprises at least one pressure gauge, and the pressure gauge can be selectively arranged on at least one of the water outlet, the water inlet and the water outlet.
Optionally, the nitrogen supply device comprises an aeration disc arranged in the recovery cavity;
the aeration disc can be movably arranged relative to the recovery tank so as to have a lifting stroke along the vertical direction and a rotating stroke rotating along the vertical axis.
Optionally, the nitrogen supply device further comprises a nitrogen supply pipeline and a floating ball flowmeter, one end of the nitrogen supply pipeline is used for connecting an external nitrogen source, the other end of the nitrogen supply pipeline is connected with the aeration disc, and the floating ball flowmeter is arranged on the nitrogen supply pipeline.
Optionally, the nitrogen supply device further comprises:
the screw rod extends in the vertical direction and is arranged in the middle of the recovery cavity, and the screw rod is rotatably arranged relative to the recovery tank; and the number of the first and second groups,
the motor is arranged in the recovery tank and is in driving connection with the screw rod;
the middle part of the aeration disc is provided with a threaded hole along the vertical direction, and the threaded hole is in threaded fit with the screw rod so that the aeration disc can perform the lifting stroke and the rotating stroke under the driving of the motor.
Optionally, the nitrogen supply device further comprises:
the gas storage tank comprises a tank shell with an opening at the lower side and a cover shell covering the opening, the tank shell and the cover shell jointly enclose to form a gas storage cavity, the gas storage cavity is used for accessing an external nitrogen source, the tank shell is arranged in the water return cavity and is fixed relative to the water return tank, and the cover shell is coaxially mounted on the motor; and the number of the first and second groups,
the linkage extension pipe is fixedly connected between the cover shell and the aeration disc and is respectively communicated with the gas storage cavity and the aeration disc so as to convey nitrogen of the gas storage cavity to the aeration disc.
Optionally, the gas storage tank further comprises a movable seal disposed at a junction between the tank shell and the lid shell.
Optionally, a baffle plate is convexly arranged on the box shell towards the opening, the cover shell is movably supported on the baffle plate, and an elastic piece is arranged at the joint of the baffle plate and the cover shell;
one side of the box shell, which is far away from the cover shell, is provided with a nitrogen inlet communicated with the gas storage cavity.
Optionally, the aeration tray comprises:
the nitrogen-containing gas purifier comprises a main body, a nitrogen inlet, a nitrogen outlet and a nitrogen outlet, wherein an aeration cavity for accessing external nitrogen is formed in the main body; and the number of the first and second groups,
the air outlet guide pipe is connected with the nitrogen outlet, is flexibly arranged and extends outwards from the main body.
Optionally, a plurality of nitrogen outlets and a plurality of air outlet guide pipes are correspondingly arranged;
the air outlet guide pipes are distributed at intervals along the circumferential direction of the main body, and the lengths of the air outlet guide pipes are at least partially arranged differently.
In the technical scheme provided by the invention, hydrophobic water generated in the operation process of the heating system is discharged into the recovery cavity through the water outlet and the water inlet in sequence; because the nitrogen supply device acts in the recovery cavity and continuously discharges nitrogen to the recovery cavity, the nitrogen discharges oxygen in air and water in the recovery cavity to the outside of the recovery cavity, dissolved oxygen at the recovery cavity can be obviously reduced or even eliminated, hydrophobic dissolved oxygen entering the inlet through the water outlet is greatly reduced, the dissolved oxygen in hydrophobic water is prevented from entering the water pump, and the problem that the dissolved oxygen in condensed water exceeds the standard can be solved from the source; because supply nitrogen device to retrieve the chamber and drum into nitrogen gas, help adjusting the pressure size of retrieving chamber department for the pressure of entrance to the malleation state, thereby help optimizing the treatment effect of dissolved oxygen.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a heating first-station condensed-water nitrogen-regulating deoxygenation system provided by the present invention;
FIG. 2 is an enlarged schematic view of the nitrogen supply apparatus and recovery tank assembly of FIG. 1;
fig. 3 is a schematic longitudinal sectional view of the nitrogen supplying apparatus of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
431 | |
| 111 | |
432 | |
| 200 | |
440 | |
| 211 | |
441 | |
| 212 | |
442 | |
| 213 | |
443 | |
| 300 | |
444 | |
| 310 | Water pump | 445 | |
| 311 | |
446 | |
| 400 | |
450 | Linkage |
| 410 | |
460 | |
| 411 | Main body | 510 | |
| 412 | |
520 | |
| 413 | |
600 | |
| 421 | |
610 | |
| 422 | Float ball flowmeter |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The heating initial station of the thermal power plant is easy to cause the dissolved oxygen amount of hydrophobic (namely condensed water) to increase along with the increase of the heating load during the operation. On one hand, with the increase of the temperature, oxygen ions in the hydrophobic water are more active, the activity degree is the highest when the temperature reaches 80 ℃, the corresponding corrosion degree is the strongest, the hydrophobic temperature is low, and the pressure of a condensed water recovery device is low, which is the main reason for the increase of the hydrophobic dissolved oxygen; on the other hand, the heat supply amount is small in winter, the drainage amount is small, the pressure of the condensed water recovery device is in a low vacuum state when the condensed water recovery device operates, and due to the fact that a pipeline valve and the like connected with a drainage tank are not tightly sealed, air enters the condensed water recovery device, and drainage dissolved oxygen is increased; in addition, water seal steam leakage of the water pump enters into hydrophobic water, so that the hydrophobic dissolved oxygen is easily too high.
In contrast, in the conventional heat supply head station, for example, the heat exchanger water pump is changed to a brine seal, the heat exchanger condensate recovery tank exhaust pipe is provided with a U-shaped water seal, a seal tape is attached to a joint portion such as a heat exchanger condensate system flange, the heat exchanger water pump is changed to a self-seal, and the heat exchanger condensate recovery tank is introduced with steam to raise the pressure, and the like, and the treatment work is performed after dissolved oxygen enters the condensate system, and the effect is very small.
In view of the above, the present invention provides a heat supply first station condensed water nitrogen regulating and oxygen removing system, please refer to fig. 1 to 3, which show a specific embodiment of the heat supply first station condensed water nitrogen regulating and oxygen removing system provided by the present invention.
Referring to fig. 1 to 3, the heating first-station condensed water nitrogen regulating and oxygen removing system provided by the present invention includes a heating system 100, a recovery tank 200, a condensed water system 300 and a nitrogen supply device 400, wherein the heating system 100 is provided with a water outlet 111; the recovery tank 200 is provided with a water inlet 211, a water outlet 212 and a recovery cavity 213 communicating the water inlet 211 and the water outlet 212, wherein the water inlet 211 is communicated with the water outlet 111; the condensate system 300 comprises a water pump 310, wherein the water pump 310 is provided with an inlet 311, and the inlet 311 is communicated with the water outlet 212; the nitrogen supply device is used for discharging nitrogen gas into the recovery cavity 213.
In the technical scheme provided by the invention, hydrophobic water generated in the operation process of the heating system 100 is discharged into the recovery cavity 213 through the water outlet 111 and the water inlet 211 in sequence; because the nitrogen supply device 400 acts in the recovery cavity 213 and continuously discharges nitrogen to the recovery cavity 213, the nitrogen discharges the nitrogen in the air and the water in the recovery cavity 213 to the outside of the recovery cavity 213, oxygen at the recovery cavity 213 can be obviously reduced or even eliminated, hydrophobic dissolved oxygen entering the inlet 311 through the water outlet 212 is greatly reduced, the dissolved oxygen in hydrophobic water is prevented from entering the water pump 310, and the problem that the dissolved oxygen in condensed water exceeds the standard can be solved from the source; since the nitrogen supply device 400 blows nitrogen gas into the recovery cavity 213, the pressure at the recovery cavity 213 is adjusted to a positive pressure state, so that the treatment effect of the dissolved oxygen is optimized.
In the present design, the heating system 100 may be formed of any suitable heating device, and it is understood that all heating systems 100 that are configured to achieve heating purposes and that generate condensed water during heating are within the scope of the present invention.
The recycling tank 200 is disposed adjacent to the heating system 100, the specific form of the recycling tank 200 is not limited in this design, and may be disposed in any suitable shape, size, material, etc. according to actual requirements, for example, in this embodiment, the recycling tank 200 is substantially cylindrical extending along the vertical direction, the water inlet 211 is disposed on the upper region of the recycling tank 200, the water outlet 212 is disposed on the lower region of the recycling tank 200, and the water inlet 211 and the water outlet 212 are disposed on opposite sides of the recycling tank 200.
The heating system 100 is provided with a water outlet 111, the water outlet 111 can directly abut against the water inlet 211, or the water outlet 111 is connected with the water inlet 211 through a pipeline structure, for example, so as to help to reduce the restriction on the relative position relationship between the water outlet 111 and the water inlet 211 by adjusting the length and the extending direction of the pipeline structure; of course, similarly, the water outlet 212 and the inlet 311 of the water pump 310 may also be directly connected to each other, or may be connected to each other through a pipeline structure, which is not described herein.
The condensed water, i.e., the hydrophobic water, generated during the operation of the heating system 100 is discharged to the recycling tank 200, and enters the condensed water system 300 through the water pump 310 after being treated by the nitrogen supply device 400 in the recycling chamber 213.
In one embodiment, the nitrogen supply device 400 comprises an aeration disc 410 arranged in the recovery chamber 213, wherein the aeration disc 410 is used for discharging nitrogen into the recovery chamber 213; wherein the aeration plate 410 is movably disposed with respect to the recovery tank 200 to have a lifting stroke in an up-down direction and a rotating stroke in an up-down axis.
The aeration plate 410 is used for receiving external nitrogen and discharging the nitrogen into the recycling cavity 213. Specifically, the external nitrogen can be a nitrogen supply machine specially arranged for the heating initial station condensed water nitrogen adjusting and deoxidizing system, and can also directly use a nitrogen source inherent in a field.
The aeration disc 410 is at least provided with a nitrogen outlet; carry out the lift stroke through adjusting aeration dish 410, multiplicable aeration dish 410 is in the ascending nitrogen discharging area in upper and lower of retrieving chamber 213, carry out rotatory stroke through adjusting aeration dish 410, multiplicable aeration dish 410 is in the ascending nitrogen discharging area of the horizontal direction of retrieving chamber 213 to can enlarge the nitrogen discharging space of aeration dish 410 on the whole, make the nitrogen gas that aeration dish 410 was discharged can react with the hydrophobic in retrieving the chamber 213 more fast high-efficiently, reach better treatment effect.
It should be noted that, since nitrogen is generally insoluble in water, the nitrogen discharge space of the aeration disc 410 is enlarged, and meanwhile, no waste of nitrogen is caused, and the hydrophobic water quality is not adversely affected. Further, the nitrogen supply device 400 may further include a recycling line communicating with the recycling chamber 213, and the unreacted nitrogen gas may be recycled through the recycling line.
In addition, in practical applications, before the hydrophobic liquid enters the recovery cavity 213, the nitrogen supply device 400 may be first started, and correspondingly, the recovery cavity 213 opens at least one pipeline, such as the aforementioned recovery pipeline, or other pipeline communicating with the external environment, so that sufficient nitrogen is blown into the recovery cavity 213, and the original air with oxygen in the recovery cavity 213 is discharged, thereby preventing the oxygen in the air from dissolving into the hydrophobic liquid and increasing the dissolved oxygen of the hydrophobic liquid. The pipeline may also be a water discharge pipeline 600 communicated with the recycling cavity 213, the water discharge pipeline 600 is provided with at least one water discharge valve 610, and the water discharge valve 610 may be manual or electric controlled.
It is understood that the main reason for the higher amount of hydrophobic dissolved oxygen in the actual production run is: firstly, the concentration of saturated dissolved oxygen is 8000-9000 ppb at the temperature of 20 ℃, the oxygen ions are more active with the increase of the temperature, the activity degree is the highest when the temperature reaches 80 ℃, and the corresponding corrosion degree is the strongest. At this time, the low hydrophobic temperature and the low pressure in the recovery chamber 213 are the main causes of the increase of the hydrophobic dissolved oxygen. Secondly, when the heating system operates normally, the hydrophobic temperature of the heating system 100 is between 90 and 100 ℃, the actual operation temperature of the heat supply initial station is below 70 ℃, and the hydrophobic dissolved oxygen is increased due to the low hydrophobic temperature. Thirdly, the heat supply is small in winter, the drainage quantity is small, the pressure is in a low vacuum state when the recovery tank 200 runs, and the pipeline valve and the like connected with the recovery tank 200 can cause air to enter the condensed water recovery device due to poor sealing, so that the drainage dissolved oxygen is increased. Fourthly, when water seal steam leakage of the water pump 310 enters hydrophobic water, the amount of dissolved oxygen in the hydrophobic water is easily too high.
Based on the above, in the scheme provided by the invention, the nitrogen supply device 400 is additionally arranged at the recovery tank 200, so that nitrogen directly acts on the hydrophobic water in the recovery cavity 213, and the dissolved oxygen in the hydrophobic water is effectively reduced, so that the dissolved oxygen in the hydrophobic water entering the condensed water system 300 reaches the standard, and the problem that the dissolved oxygen in the condensed water exceeds the standard is solved from the source; in addition, because the nitrogen gas is continuously blown into the recovery cavity 213, the pressure between the recovery cavity 213 and the inlet 311 of the water pump 310 can be increased, for example, the flow rate of the nitrogen gas is adjusted to be 2L/min, and the pressure above the recovery cavity 213 is adjusted to be 0-5 Kpa, so that the pressure at the inlet 311 of the water pump 310 is about 10-15 Kpa, which is slightly greater than the atmospheric pressure, thereby being beneficial to eliminating the negative pressure phenomenon of the recovery cavity 213 caused by the suction effect of the water pump 310 and also being beneficial to reducing the dissolved oxygen amount of the hydrophobic water.
In order to control and adjust the flow of the fluid in each place, in an embodiment, the heating initial station condensed water nitrogen regulation oxygen removal system further comprises at least one valve body 510, and the valve body 510 can be selectively arranged at least one of the water outlet 111, the water inlet 211 and the water outlet 212. The type, specification, number, position and the like of the valve body 510 can be set according to actual requirements; the valve body 510 may be a manual valve or an electric control valve; when the valve body 510 is an electric control valve, the electric control valve is electrically connected with the control device for adjusting the oxygen removal system by the heat supply first-station condensed water nitrogen, so that the flow of the fluid of the pipeline at the corresponding position can be controlled and adjusted under the preset program of the control device.
Of course, in an embodiment, the nitrogen regulating oxygen removal system for primary condensed water further includes at least one pressure gauge 520, and the pressure gauge 520 may be selectively disposed at least one of the water outlet 111, the water inlet 211, and the water outlet 212. Similarly, the type, specification, number, position, etc. of the load cell 520 may be set according to actual needs; the pressure gauge 520 may be a manual type or an electric control type; can direct visual reading pressure value, also can convert the pressure value that the sensing obtained into the signal of telecommunication, send to the control device of heat supply first station condensation return water nitrogen gas regulation deoxidization system, with can be in under control device's the preset program, the pressure value of the fluid of the pipeline that realizes corresponding position department can know and can store.
In addition, based on the above, the external nitrogen may be a nitrogen supply machine specially provided for the heat supply first station condensed water nitrogen adjusting and deoxidizing system, or may directly use a nitrogen source inherent in a plant. Specifically, the concentration of the nitrogen can be more than 95%; the flow rate of the nitrogen can be specifically set to be 2L/min; in contrast, in an embodiment, the nitrogen supply apparatus 400 further includes a nitrogen supply pipeline 421 and a floating ball flow meter 422, at least a portion of the nitrogen supply pipeline 421 and the floating ball flow meter 422 are disposed outside the recovery tank 200, one end of the nitrogen supply pipeline 421 is used to connect an external nitrogen source, the other end is connected to the aeration disc 410, and the floating ball flow meter 422 is disposed in the nitrogen supply pipeline 421.
In addition, because the aeration disc 410 in the design can be movably arranged relative to the recovery tank 200, the driving mode of the aeration disc 410 can be realized by manual operation of a user or can be realized by automatic driving of an electric control device; the electric control device can be a scheme of directly driving the driver or a scheme of combining the driver and the transmission mechanism.
Specifically, referring to fig. 3, in an embodiment, the nitrogen supply device 400 further includes a screw rod 431 and a motor 432, the screw rod 431 extends in the middle of the recovery cavity 213 from top to bottom, and specifically may extend from the top wall of the recovery cavity 213 to the bottom wall of the recovery cavity 213 or is spaced from the bottom wall of the recovery cavity 213; the screw rod 431 is rotatably arranged around the axis of the recovery tank 200 relative to the recovery tank; the motor 432 is arranged on the recovery tank 200 and is in driving connection with the screw rod 431. In practical application, the motor 432 may be fixedly installed on the bottom wall of the recovery cavity 213, and be spaced from the liquid level in the recovery cavity 213 as far as possible; of course, the motor 432 may also be fixedly installed outside the recovery tank 200; alternatively, a protective housing may be provided for the motor 432, and the protective housing is used to protect the motor 432 from water. The middle of the aeration disc 410 is provided with a threaded hole running through in the vertical direction, and the threaded hole is in threaded fit with the screw rod 431, so that the aeration disc 410 performs the lifting stroke and the rotating stroke under the driving of the motor 432.
As such, when the screw hole of the aeration disc 410 is screw-engaged with the screw rod 431, the aeration disc 410 can perform a lifting stroke and a rotating stroke at the same time; also, the translational direction and the rotational direction of the aeration disc 410 can be adjusted by controlling the forward rotation and the reverse rotation of the motor 432, for example, when the motor 432 is controlled by the control device to alternately perform the forward rotation and the reverse rotation, the aeration disc 410 can be circularly lifted and rotated in the recovery chamber 213.
The aeration disk 410 needs to be connected to the nitrogen supply line 421 described above, for example, to ensure continuous circulation of nitrogen gas, but since the aeration disk 410 is in an active state, interference with the nitrogen supply line 421 is likely to occur, and the nitrogen supply line 421 is twisted or pulled, which may cause a connection failure between the nitrogen supply line 421 and the aeration disk 410 or between the nitrogen supply line 421 and the recovery tank 200, and may cause detachment. Therefore, in an embodiment, the nitrogen supply device 400 further comprises a gas storage tank 440 and a linkage telescopic pipe 450, wherein the gas storage tank 440 comprises a case 441 with an opening at the lower side and a cover 442 covering the opening, the case 441 and the cover 442 together enclose a gas storage cavity 443, the gas storage cavity 443 is used for accessing an external nitrogen source, the case 441 is arranged in the water return cavity and fixed relative to the water return tank, and the cover 442 is coaxially mounted on the motor 432; the linkage extension pipe 450 is fixedly connected between the cover 442 and the aeration disc 410, and is respectively communicated with the air storage cavity 443 and the aeration disc 410 to convey the nitrogen in the air storage cavity 443 to the aeration disc 410.
The air tank 440 may be disposed at a top wall of the recycling chamber 213, and further, the output shaft of the motor 432 or the lead screw 431 may penetrate the air tank 440, or the air tank 440 may be spaced apart from the output shaft of the motor 432 and the lead screw 431. Wherein the housing 441 is fixedly connected to a top wall of the recycling chamber 213, the opening faces downward, and the cover 442 rotates relative to the housing 441.
The rotation of the cover 442 and the rotation of the aeration plate 410 are synchronized, so that the linkage extension tube 450 and the cover 442 and the aeration plate 410 are relatively fixed without generating a relative force. For this reason, a driving mechanism may be provided exclusively for the rotation of the cover case 442, which is output in synchronization with the motor 432; alternatively, as in this embodiment, the cover 442 is arranged coaxially mounted on the output shaft of the motor 432.
Of course, since the aeration disc 410 also has a lifting stroke, the linkage extension tube 450 may be disposed to extend up and down, for example, a corrugated tube, or an extension tube with a plurality of expansion joints may be disposed.
Further, in one embodiment, the gas tank 440 further includes a movable seal 460, the movable seal 460 being disposed at the junction between the housing 441 and the cover 442. The movable sealing member 460 does not interfere with the relative movement between the case housing 441 and the cover housing 442, and can effectively prevent the nitrogen gas in the gas storage cavity 443 from leaking out. Of course, since the entire air storage cavity 443 is disposed in the recycling cavity 213, a certain amount of nitrogen gas leaking from the air storage cavity 443 can still act on the recycling cavity 213, and thus no waste is generated.
Further, in an embodiment, a baffle 444 is convexly formed on the housing 441 facing the opening, the cover 442 is movably supported on the baffle 444, and an elastic member 445 is arranged at the joint of the baffle 444 and the cover 442; the side of the housing 441 far away from the cover shell 442 is provided with a nitrogen inlet 446 communicated with the air storage cavity 443.
Thus, when nitrogen enters the air storage cavity 443 through the nitrogen inlet 446, the cover shell 442 can be floatingly mounted on the baffle 444, and the cover shell 442 can be prevented from generating large frictional interference with the baffle 444 and generating abnormal noise during movement; in addition, the cover shell 442 and the baffle 444 may be provided with two annular grooves at corresponding positions, two end portions of the elastic member 445 may be slidably connected to the two annular grooves, and the connecting surface is an arc surface, so as to effectively reduce a sliding contact area between the cover shell 442 and the baffle 444, and simultaneously, the concave-convex between the cover shell 442 and the baffle 444 may be increased, and a flow path of nitrogen gas leaked from between the cover shell 442 and the case shell 441 may be extended, thereby increasing the sealing property between the cover shell 442 and the case shell 441 to a certain extent.
Based on the above, in one embodiment, the aeration disc 410 comprises a main body 411 and an air outlet conduit 412, wherein the main body 411 is formed with an aeration chamber 413 for receiving external nitrogen, the aeration chamber 413 is provided with a nitrogen outlet, and specifically, when the air storage tank 440 and the linkage telescopic pipe 450 are provided as described above, the nitrogen outlet can be connected with a nitrogen through-hole opened on the cover shell 442 through the linkage telescopic pipe 450; the gas outlet pipe 412 is connected to the nitrogen outlet, and the gas outlet pipe 412 is flexibly disposed and extends outward from the main body 411. Thus, when the aeration disc 410 performs a rotation stroke, the air outlet conduit 412 can be driven to bend in an arc shape, so that the nitrogen in the aeration chamber 413 can be centrifugally thrown out, which is helpful for increasing the fluidity of the nitrogen.
Further, in an embodiment, a plurality of nitrogen outlets and a plurality of air outlet conduits 412 are correspondingly provided; specifically, the plurality of outlet conduits 412 are arranged at intervals along the circumferential direction of the main body 411, and the plurality of outlet conduits 412 may be arranged in layers along the up-down direction of the main body 411. The lengths of the air outlet guide pipes 412 are at least partially arranged differently, so that the radiuses of the nitrogen which is centrifugally thrown out are different, and the throwing areas are different, which is beneficial to the comprehensive discharge area of the nitrogen in the recovery cavity 213, so that the hydrophobic dissolved oxygen at each position in the recovery cavity 213 can be contacted with the nitrogen more quickly, and the treatment effect of the dissolved oxygen is optimized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a heat supply initial station condensation return water nitrogen gas adjusts deoxidization system which characterized in that includes:
the heating system is provided with a water outlet;
the recycling tank is provided with a water inlet, a water outlet and a recycling cavity communicated with the water inlet and the water outlet, and the water inlet is communicated with the water outlet;
a condensate system including a water pump having an inlet in communication with the water outlet; and the number of the first and second groups,
and the nitrogen supply device is used for discharging nitrogen into the recovery cavity.
2. The system of claim 1, further comprising at least one valve selectively disposed at least one of the drain, the water inlet, and the water outlet; and/or the presence of a gas in the gas,
the heating first station condensed water nitrogen adjusting and deoxidizing system further comprises at least one pressure gauge, and the pressure gauge can be selectively arranged on at least one of the water outlet, the water inlet and the water outlet.
3. The system as claimed in claim 1, wherein the nitrogen supply device comprises an aeration tray disposed in the recovery chamber;
the aeration disc can be movably arranged relative to the recovery tank so as to have a lifting stroke along the vertical direction and a rotating stroke rotating along the vertical axis.
4. The system as claimed in claim 3, wherein the nitrogen supply device further comprises a nitrogen supply pipeline and a floating ball flow meter, one end of the nitrogen supply pipeline is used for connecting an external nitrogen source, the other end of the nitrogen supply pipeline is connected with the aeration disc, and the floating ball flow meter is arranged on the nitrogen supply pipeline.
5. The system of claim 3, wherein the nitrogen supply device further comprises:
the screw rod extends in the vertical direction and is arranged in the middle of the recovery cavity, and the screw rod is rotatably arranged relative to the recovery tank; and the number of the first and second groups,
the motor is arranged in the recovery tank and is in driving connection with the screw rod;
the middle part of the aeration disc is provided with a threaded hole along the vertical direction, and the threaded hole is in threaded fit with the screw rod so that the aeration disc can perform the lifting stroke and the rotating stroke under the driving of the motor.
6. The system of claim 5, wherein the nitrogen supply device further comprises:
the gas storage tank comprises a tank shell with an opening at the lower side and a cover shell covering the opening, the tank shell and the cover shell jointly enclose to form a gas storage cavity, the gas storage cavity is used for accessing an external nitrogen source, the tank shell is arranged in the water return cavity and is fixed relative to the water return tank, and the cover shell is coaxially mounted on the motor; and the number of the first and second groups,
the linkage extension pipe is fixedly connected between the cover shell and the aeration disc and is respectively communicated with the gas storage cavity and the aeration disc so as to convey nitrogen of the gas storage cavity to the aeration disc.
7. The system of claim 6, wherein the storage tank further comprises a movable seal disposed at a junction between the tank shell and the cover shell.
8. The system as claimed in claim 6, wherein a baffle is formed on the housing in a protruding manner towards the opening, the cover is movably supported on the baffle, and an elastic member is arranged at the joint of the cover and the baffle;
one side of the box shell, which is far away from the cover shell, is provided with a nitrogen inlet communicated with the gas storage cavity.
9. The system of claim 3, wherein the aeration disc comprises:
the nitrogen-containing gas purifier comprises a main body, a nitrogen inlet, a nitrogen outlet and a nitrogen outlet, wherein an aeration cavity for accessing external nitrogen is formed in the main body; and the number of the first and second groups,
the air outlet guide pipe is connected with the nitrogen outlet, is flexibly arranged and extends outwards from the main body.
10. The system for regulating and deoxidizing nitrogen in which condensed water is returned from a heat supply initial station as claimed in claim 9, wherein a plurality of nitrogen outlets and a plurality of air outlet conduits are correspondingly arranged;
the air outlet guide pipes are distributed at intervals along the circumferential direction of the main body, and the lengths of the air outlet guide pipes are at least partially arranged differently.
Priority Applications (1)
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|---|---|---|---|
| CN202111029218.6A CN113860414A (en) | 2021-09-02 | 2021-09-02 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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|---|---|---|---|
| CN202111029218.6A CN113860414A (en) | 2021-09-02 | 2021-09-02 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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| CN113860414A true CN113860414A (en) | 2021-12-31 |
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| CN202111029218.6A Pending CN113860414A (en) | 2021-09-02 | 2021-09-02 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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