CN209246120U - Boiler water-cooled wall heat exchanger of adjustable quality - Google Patents
Boiler water-cooled wall heat exchanger of adjustable quality Download PDFInfo
- Publication number
- CN209246120U CN209246120U CN201821868536.5U CN201821868536U CN209246120U CN 209246120 U CN209246120 U CN 209246120U CN 201821868536 U CN201821868536 U CN 201821868536U CN 209246120 U CN209246120 U CN 209246120U
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- Prior art keywords
- chamber
- inner tube
- main chamber
- tonifying
- drum
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 50
- 238000001802 infusion Methods 0.000 claims description 46
- 230000007423 decrease Effects 0.000 claims description 30
- 230000001154 acute effect Effects 0.000 claims description 12
- 239000003245 coal Substances 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 5
- 238000001704 evaporation Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A boiler water wall heat exchanger capable of adjusting dryness comprises a water wall, a double-cavity steam pocket and a lower header group; the double-cavity steam drum comprises a steam drum main cavity and a steam drum auxiliary cavity which are mutually communicated, and the steam drum main cavity is connected with the economizer; the lower header group comprises a lower header main cavity and a lower header auxiliary cavity; the water-cooled wall is provided with more than one group, and the water-cooled wall comprises a water-cooled outer pipe, a liquid supplementing inner pipe and a gas supplementing inner pipe, wherein the liquid supplementing inner pipe and the gas supplementing inner pipe are respectively arranged in the inner cavity of the water-cooled outer pipe; the steam pocket main cavity is respectively communicated with the lower main cavity and the lower auxiliary cavity, and the steam pocket auxiliary cavity is communicated with the air supply inner pipe; the lower main cavity is communicated with the steam drum main cavity through the water-cooling outer tube, and the lower auxiliary cavity is communicated with the liquid supplementing inner tube. The utility model has the characteristics of simple structure is reasonable, heat exchange efficiency is high, maintain simple and convenient, practice thrift the fire coal, pollution abatement, energy-concerving and environment-protective etc.
Description
Technical field
The utility model relates to a kind of heat exchanger, in particular to a kind of boiler water wall heat exchanger of adjustable mass dryness fraction.
Background technique
Heat exchanger is use energy equipment, energy conversion and energy transportation equipment important in modern industry, numerous
It is played an important role in industrial circle, and boiler water wall is a kind of wherein highly important heat exchanger, is widely used in heat
The chemical industry such as power power plant, papermaking, pharmacy are used as boiler furnace.
Since there are flow velocitys compared with the deficiencies such as slow, the coefficient of heat transfer is low in low mass dryness fraction evaporation process for heat exchanger tube, lead to boiler water cooling
Wall is not high in low mass dryness fraction Regional Energy utilization efficiency, however when fluid is in the nucleate boiling area of high mass dryness fraction, evaporation and heat-exchange
Efficiency is significantly improved；Therefore, a kind of novel heat exchange structure how is constructed, so that boiler water wall is equal in whole process heat exchange
Efficient heat exchange efficiency is kept, there is important realistic meaning, while being the major issue that those skilled in the art need to solve.
Utility model content
The purpose of the utility model is to provide it is a kind of it is simple and reasonable, heat exchange efficiency is high, easy maintenance, saves combustion
Coal, the boiler water wall heat exchanger for reducing pollution, energy-saving and environment-friendly adjustable mass dryness fraction, to overcome deficiency in the prior art
Place.
By a kind of boiler water wall heat exchanger of adjustable mass dryness fraction of this purpose design, including water-cooling wall, it is characterised in that:
It further include two-chamber drum and lower collector pipe group；The two-chamber drum includes interconnected drum main chamber and drum pair chamber, drum master
Chamber connects economizer；The lower collector pipe group includes next part main chamber and next part pair chamber；The water-cooling wall is arranged one group or more comprising
Water cooling outer tube, fluid infusion inner tube and tonifying Qi inner tube, fluid infusion inner tube and tonifying Qi inner tube are respectively arranged at water cooling outer tube bore, water cooling outer tube
It is identical with the flow direction of medium in fluid infusion inner tube, in tonifying Qi inner tube in the flow direction of medium and water cooling outer tube and/or fluid infusion
Pipe is opposite；The drum main chamber is respectively communicated with next part main chamber and next part pair chamber, and drum pair chamber is connected to tonifying Qi inner tube；The next part master
Chamber is connected to drum main chamber by water cooling outer tube, and next part pair chamber is connected to fluid infusion inner tube.
This boiler water wall heat exchanger further includes down-comer group, and the down-comer group includes under the first decline tube bank and second
Drop tube bank, drum main chamber pass through the second decline tube bank connection next part by the first decline tube bank connection next part main chamber, drum main chamber
Secondary chamber；It is provided with the first kinetic pump in the first decline tube bank, is provided with the second kinetic pump in the second decline tube bank.
The position of the first decline tube bank connection drum main chamber is connected to the position phase of drum main chamber with the second decline tube bank
Mutually symmetrical and height is consistent.
The drum pair chamber is located above drum main chamber, and is provided with the first steam pipe and the second steam pipe each other,
Drum main chamber is connected to drum pair chamber by the first steam pipe, and drum pair chamber is connected to tonifying Qi inner tube by the second steam pipe.
Drum main chamber inner cavity is provided with third steam pipe matched with water-cooling wall, and the second steam pipe passes through third steam
Pipe is connected to tonifying Qi inner tube；Pressure pump is provided on second steam pipe or third steam pipe.
The next part pair chamber is set to next part main chamber inner cavity, and next part main chamber is not connected to mutually with next part pair chamber；The next part master
Intracavitary chamber is provided with delivery pipe matched with water-cooling wall, and next part pair chamber is connected to corresponding fluid infusion inner tube by delivery pipe.
Fluid infusion inner tube one end is fluid infusion open end, the other end is fluid infusion closed end, wherein fluid infusion open end and next part
Secondary chamber connection；Tonifying Qi inner tube one end is tonifying Qi open end, the other end is tonifying Qi closed end, wherein tonifying Qi open end and vapour
Wrap secondary chamber connection.
Several fluid infusion holes are provided in the fluid infusion inner tube, the flowing of medium in the opening direction and water cooling outer tube in fluid infusion hole
Direction a at an acute angle, acute angle a are 15-75 °.
Several tonifying Qi holes are provided in the tonifying Qi inner tube, the flowing of medium in the opening direction and water cooling outer tube in tonifying Qi hole
Direction b at an acute angle, acute angle b are 15-75 °.
The fluid infusion inner tube and/or tonifying Qi inner tube extend along water cooling outer tube.
The utility model overcomes in low mass dryness fraction evaporation and heat-exchange low efficiency, boiler existing for existing boiler water wall heat exchanger
The deficiencies of energy utilization rate is lower.Compared with prior art, the advantageous effects of the utility model are: it is simple and reasonable,
It is whole hardly to increase occupied space, and it can be obviously improved the heat exchange efficiency of the entire evaporation process of boiler, reach energy-efficient
Purpose.
Detailed description of the invention
Fig. 1 is the overall structure diagram of an embodiment of the present invention.
Fig. 2 is the partial structural diagram of an embodiment of the present invention.
Fig. 3 is the another partial structural diagram of an embodiment of the present invention.
Fig. 4 is the structural schematic diagram of lower collector pipe group in an embodiment of the present invention.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
Referring to figures 1-4, the boiler water wall heat exchanger of this adjustable mass dryness fraction, including water-cooling wall 5, two-chamber drum 2 and under
Collector group 4；Two-chamber drum 2 includes interconnected drum main chamber 21 and drum pair chamber 22, and drum main chamber 21 connects economizer 1；
Lower collector pipe group 4 includes next part main chamber 41 and next part pair chamber 42；One group or more (the present embodiment is arranged four groups) is arranged in water-cooling wall 5, respectively
Water-cooling wall 5 includes water cooling outer tube 51, fluid infusion inner tube 52 and tonifying Qi inner tube 53, and fluid infusion inner tube 52 and tonifying Qi inner tube 53 are respectively arranged at
The flow direction of medium is identical in 51 inner cavity of water cooling outer tube, water cooling outer tube 51 and fluid infusion inner tube 52 (being bottom-up flowing),
The flow direction of medium is opposite with water cooling outer tube 51 and fluid infusion inner tube 52 in tonifying Qi inner tube 53 (flowing from up to down)；Drum master
Chamber 21 is respectively communicated with next part main chamber 41 and next part pair chamber 42, and drum pair chamber 22 is connected to tonifying Qi inner tube 53；Next part main chamber 41 passes through water
Cold outer tube 51 is connected to drum main chamber 21, and next part pair chamber 42 is connected to fluid infusion inner tube 52.Medium enters two-chamber drum 2 by economizer 1
In drum main chamber 21, respectively enter the next part main chamber 41 and next part pair chamber 42 in lower collector pipe group 4 immediately, finally respectively enter each
Mass dryness fraction formula evaporation and heat-exchange is adjusted in water-cooling wall 5.
Furtherly, this boiler water wall heat exchanger further includes down-comer group 3, and down-comer group 3 includes the first decline tube bank
31 and second decline tube bank 32, and drum main chamber 21 is connected to next part main chambers 41 by the first decline tube bank 31, and drum main chamber 21 passes through
Second decline tube bank, 32 connection next part pair chamber 42；The first kinetic pump 311, the second decline tube bank are provided in first decline tube bank 31
The second kinetic pump 321 is provided on 32.Certain media enters next part main chamber 41, portion through the first decline tube bank 31 by drum main chamber 21
Medium is divided to enter next part pair chamber 42 through the second decline tube bank 32 by drum main chamber 21.
Furtherly, the position of 31 connection drum main chamber 21 of the first decline tube bank is connected to drum master with the second decline tube bank 32
The position of chamber 21 is symmetrically and height is consistent；First decline 31 input ends of tube bank and the second decline 32 input ends of tube bank are soaked respectively
It steeps in medium.
Furtherly, drum pair chamber 22 is located at 21 top of drum main chamber, and is provided with 23 He of the first steam pipe each other
Second steam pipe 25, drum main chamber 21 are connected to drum pair chamber 22 by the first steam pipe 23, and drum pair chamber 22 passes through the second steam
Pipe 25 is connected to tonifying Qi inner tube 53.21 inner cavity of drum main chamber is provided with third steam pipe 26 matched with water-cooling wall 5, the second steam pipe
25 are connected to tonifying Qi inner tube 53 by third steam pipe 26；Pressure pump is provided on second steam pipe 25 (or third steam pipe 26)
24.Some vapor enters drum pair chamber 22 through the first steam pipe 23 by drum main chamber 21, then by pressure pump 24 successively through second
Steam pipe 25 and third steam pipe 26 are pumped to tonifying Qi inner tube 53 to carry out mass dryness fraction adjusting.
Furtherly, next part pair chamber 42 is set to 41 inner cavity of next part main chamber, and next part main chamber 41 does not connect mutually with next part pair chamber 42
It is logical；41 inner cavity of next part main chamber is provided with delivery pipe 43 matched with water-cooling wall 5, and next part pair chamber 42 is connected to accordingly by delivery pipe 43
Fluid infusion inner tube 52.
Furtherly, next part main chamber 41, which is equipped with, restrains 31 first interface 44, for connecting for connecting the first decline
Second decline tube bank 32 second interface 45, for 43 input end of connecting conveying pipe third interface 46, be used for connecting conveying pipe
4th interface 47 of 43 outlet ends and/or fluid infusion inner tube 52.
Furtherly, 52 one end of fluid infusion inner tube is fluid infusion open end 523, the other end is fluid infusion closed end 522, wherein is mended
Liquid open end 523 is connected to next part pair chamber 42, and fluid infusion closed end 522 extends close to the position of drum main chamber 21；Tonifying Qi inner tube
53 one end are tonifying Qi open end 531, the other end is tonifying Qi closed end 533, wherein tonifying Qi open end 531 and drum pair chamber 22 connect
Logical, tonifying Qi closed end 533 extends close to the position of next part main chamber 41.
Furtherly, several fluid infusion holes 521 are provided in fluid infusion inner tube 52, outside the opening direction and water cooling in fluid infusion hole 521
The flow direction of medium a at an acute angle in pipe 51, acute angle a are 15-75 °.It is provided with several tonifying Qi holes 532 in tonifying Qi inner tube 53, mends
The flow direction b at an acute angle of medium in the opening direction and water cooling outer tube 51 of stomata 532, acute angle b are 15-75 °.
Furtherly, fluid infusion inner tube 52 and/or tonifying Qi inner tube 53 extend along water cooling outer tube 51.
Working principle:
Liquid phase working fluid enters economizer 1 after desalination oxygen removal process and is preheated, and it is laggard to reach nearly saturated mode working-medium water
Enter in drum main chamber 21；Fractional saturation working-medium water enters next part master from the first decline tube bank 31 under the effect of the first kinetic pump 311
Chamber 41, and enter in water cooling outer tube 51 from next part main chamber 41 and be evaporated heat exchange；At the same time, enter after being saturated working medium water evaporation
The two-phase fluid of drum main chamber 21, carries out gas-liquid separation in drum main chamber 21, and partial gas phase working medium passes through the first steam pipe 23
Into in drum pair chamber 22, the subsequent gas-phase working medium returns to drum main chamber 21 by the first steam pipe 23；Due to the second steam pipe
25 are not connected to mutually with drum main chamber 21, and the second steam pipe 25 is connected to tonifying Qi inner tube 53, and pressure pump 24 extracts drum main chamber 21
In partial gas phase working medium enter in tonifying Qi inner tube 53, then gas-phase working medium is pumped into water cooling outer tube 51 by tonifying Qi hole 532,
Construct the high mass dryness fraction annular flow evaporation fluidised form of high efficient heat exchanging.
Since water cooling outer tube 51 is longer along Cheng Huanre length, it is therefore desirable to the high mass dryness fraction annular flow evaporation fluidised form of multistage is constructed,
Therefore it needs to supplement saturation working-medium water to water cooling outer tube 51 simultaneously in position, therefore passes through the work of the second kinetic pump 321
With the saturation working-medium water in drum main chamber 21 enters in next part pair chamber 42 through the second decline tube bank 32, and next part pair chamber 42 passes through defeated
It send pipe 43 to be connected to fluid infusion inner tube 52, saturation working-medium water is made to enter fluid infusion inner tube 52, fluid infusion hole 521 is steamed in 51 fluid of water cooling outer tube
Hair retrodeviates the supplement saturated solution of the position from annular flow fluidised form；Saturation working-medium water and tonifying Qi inner tube 53 are supplemented by fluid infusion inner tube 52
Steam is supplemented, so that the cyclic annular flow evaporator fluidised form of high efficient heat exchanging is constructed along journey whole process in water cooling outer tube 51, thus significantly
Improve the evaporation efficiency of water-cooling wall.
The above-mentioned preferred embodiment for the utility model, has been shown and described the basic principles and main features of the utility model
And the advantages of the utility model.Those skilled in the art should be recognized that the present utility model is not limited to the above embodiments, on
It states and only illustrates the principles of the present invention described in embodiment and specification, do not departing from the spirit and scope of the utility model
Under the premise of the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical new
Within the scope of type.The utility model requires protection scope is defined by appended claims and its equivalent.
Claims (10)
1. a kind of boiler water wall heat exchanger of adjustable mass dryness fraction, including water-cooling wall (5), it is characterised in that: further include two-chamber vapour
Wrap (2) and lower collector pipe group (4)；The two-chamber drum (2) includes interconnected drum main chamber (21) and drum pair chamber (22), vapour
Packet main chamber (21) connects economizer (1)；The lower collector pipe group (4) includes next part main chamber (41) and next part pair chamber (42)；The water
Cold wall (5) is arranged one group or more comprising water cooling outer tube (51), fluid infusion inner tube (52) and tonifying Qi inner tube (53), fluid infusion inner tube
(52) and tonifying Qi inner tube (53) is respectively arranged at water cooling outer tube (51) inner cavity, medium in water cooling outer tube (51) and fluid infusion inner tube (52)
Flow direction it is identical, the flow direction of medium and water cooling outer tube (51) and/or fluid infusion inner tube (52) phase in tonifying Qi inner tube (53)
Instead；The drum main chamber (21) is respectively communicated with next part main chamber (41) and next part pair chamber (42), and drum pair chamber (22) is connected in tonifying Qi
It manages (53)；The next part main chamber (41) is connected to fluid infusion by water cooling outer tube (51) connection drum main chamber (21), next part pair chamber (42)
Inner tube (52).
2. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 1, it is characterised in that: further include down-comer group
(3), the down-comer group (3) includes that (32) are restrained in the first decline tube bank (31) and the second decline, and drum main chamber (21) passes through the
One decline tube bank (31) connection next part main chamber (41), drum main chamber (21) are connected to next part pair chamber by the second decline tube bank (32)
(42)；It is provided with the first kinetic pump (311) in the first decline tube bank (31), is provided with second in the second decline tube bank (32)
Kinetic pump (321).
3. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 2, it is characterised in that: first down-comer
The position that the position of beam (31) connection drum main chamber (21) is connected to drum main chamber (21) with the second decline tube bank (32) is symmetrical
And height is consistent.
4. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 2, it is characterised in that: the drum pair chamber
(22) it is located above drum main chamber (21), and is provided with the first steam pipe (23) and the second steam pipe (25), drum each other
Main chamber (21) is connected to by the first steam pipe (23) connection drum pair chamber (22), drum pair chamber (22) by the second steam pipe (25)
Tonifying Qi inner tube (53).
5. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 4, it is characterised in that: the drum main chamber
(21) inner cavity, which is provided with, passes through third steam pipe with water-cooling wall (5) matched third steam pipe (26), the second steam pipe (25)
(26) tonifying Qi inner tube (53) are connected to；Pressure pump (24) are provided on second steam pipe (25) or third steam pipe (26).
6. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 5, it is characterised in that: the next part pair chamber
(42) it is set to next part main chamber (41) inner cavity, next part main chamber (41) is not connected to mutually with next part pair chamber (42)；The next part main chamber
(41) inner cavity is provided with is connected to corresponding with water-cooling wall (5) matched delivery pipe (43), next part pair chamber (42) by delivery pipe (43)
Fluid infusion inner tube (52).
7. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 6, it is characterised in that: the fluid infusion inner tube
(52) one end is fluid infusion open end (523), the other end is fluid infusion closed end (522), wherein fluid infusion open end (523) and next part
Secondary chamber (42) connection；Described tonifying Qi inner tube (53) one end is tonifying Qi open end (531), the other end is tonifying Qi closed end (533),
In, tonifying Qi open end (531) are connected to drum pair chamber (22).
8. the boiler water wall heat exchanger of any one of -7 adjustable mass dryness fractions according to claim 1, it is characterised in that: the benefit
Several fluid infusion holes (521) are provided in liquid inner tube (52), medium in the opening direction of fluid infusion hole (521) and water cooling outer tube (51)
Flow direction a at an acute angle, acute angle a are 15-75 °.
9. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 8, it is characterised in that: the tonifying Qi inner tube
(53) several tonifying Qi holes (532) are provided on, the flowing side of medium in the opening direction of tonifying Qi hole (532) and water cooling outer tube (51)
It is 15-75 ° to b at an acute angle, acute angle b.
10. the boiler water wall heat exchanger of mass dryness fraction is adjusted according to claim 9, it is characterised in that: the fluid infusion inner tube
(52) and/or tonifying Qi inner tube (53) extends along water cooling outer tube (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821868536.5U CN209246120U (en) | 2018-11-14 | 2018-11-14 | Boiler water-cooled wall heat exchanger of adjustable quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821868536.5U CN209246120U (en) | 2018-11-14 | 2018-11-14 | Boiler water-cooled wall heat exchanger of adjustable quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209246120U true CN209246120U (en) | 2019-08-13 |
Family
ID=67528103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821868536.5U Expired - Fee Related CN209246120U (en) | 2018-11-14 | 2018-11-14 | Boiler water-cooled wall heat exchanger of adjustable quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209246120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297044A (en) * | 2018-11-14 | 2019-02-01 | 仲恺农业工程学院 | Boiler water-cooled wall heat exchanger of adjustable quality |
| CN109297044B (en) * | 2018-11-14 | 2024-10-29 | 仲恺农业工程学院 | Boiler water-cooled wall heat exchanger with adjustable dryness |
-
2018
- 2018-11-14 CN CN201821868536.5U patent/CN209246120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297044A (en) * | 2018-11-14 | 2019-02-01 | 仲恺农业工程学院 | Boiler water-cooled wall heat exchanger of adjustable quality |
| CN109297044B (en) * | 2018-11-14 | 2024-10-29 | 仲恺农业工程学院 | Boiler water-cooled wall heat exchanger with adjustable dryness |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190813 Termination date: 20201114 |