CN219640734U - Hydrophobic end difference optimization energy-saving device of surface heater - Google Patents
Hydrophobic end difference optimization energy-saving device of surface heater Download PDFInfo
- Publication number
- CN219640734U CN219640734U CN202320338126.4U CN202320338126U CN219640734U CN 219640734 U CN219640734 U CN 219640734U CN 202320338126 U CN202320338126 U CN 202320338126U CN 219640734 U CN219640734 U CN 219640734U
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- China
- Prior art keywords
- cooling section
- hydrophobic
- heat exchange
- shell
- surface heater
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Links
- 230000002209 hydrophobic effect Effects 0.000 title claims description 45
- 238000005457 optimization Methods 0.000 title claims description 6
- 238000001816 cooling Methods 0.000 claims abstract description 46
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 238000005253 cladding Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The upper part of the surface type heater shell is provided with a plurality of groups of condensation section heat exchange tubes, the lower part of the surface type heater shell is provided with a shell, the shell is internally provided with a plurality of groups of drainage cooling section heat exchange tubes, the upper end of the surface type heater shell is provided with a steam inlet, the right lower end of the shell is provided with a drainage cooling section inlet, the left lower end of the shell is provided with a drainage cooling section outlet, and the drainage cooling section outlet penetrates through the surface type heater shell; the device reasonably distributes the cooling area of each cooling section, adopts the drainage cooling section with a special structure, strengthens the heat transfer efficiency of the drainage cooling section, can control the temperature difference of the drainage end within 3 ℃, has the advantages of reasonable design, obvious cooling effect, obvious energy-saving effect and the like, and can be popularized and used in thermal power plants.
Description
Technical Field
The utility model belongs to the technical field of heat exchanger devices or equipment of thermal power plants, and particularly relates to a hydrophobic end difference optimization energy-saving device of a surface heater.
Background
Some units in the north of China are energy-saving modified, the operation mode of the condenser is changed into back pressure operation, the drainage of the heating network heater directly flows back to a heating well of the condenser, and the subsequent treatment process of the condensed water has a requirement on the upper limit of water temperature, so that the drainage temperature of the heating network heater needs to be controlled. The current heat supply network heater has higher drain end difference, so that the actual demand cannot be met, and the end difference temperature proposed by related technical specifications is more than or equal to 5.6 ℃, so that the value cannot meet the actual operation condition on site. At present, a method for reducing the drainage temperature of a heat supply network heater is commonly adopted to improve the drainage liquid level and submerge a heat exchange tube in drainage or adopt an external drainage cooler; the mode of immersing the heat exchange tube in the water repellent liquid level is improved, and the heat exchange tube has the defects that the water repellent liquid directly flows through the tube bundle without deflection, the cooling flow is short, no turbulence exists, the heat transfer efficiency is extremely low, and the effect is poor in the actual use process; the external drain cooler has the defects of increasing the plant area and equipment investment and poor economic benefit.
In order to solve the problem of high drain end difference of a heat supply network heater, the structure of the heater is improved, the areas of different cooling sections of the heater are optimized, the structural design of a conventional drain cooling section is broken, the structure of the drain cooling section is redesigned, and a novel surface heater is designed and manufactured, so that the drain end difference of the heater can be controlled to be less than or equal to 3 ℃, the heat transfer efficiency is high, and the on-site operation working condition is completely met.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the surface heater water drain end difference optimization energy-saving device which has reasonable design, simple structure, reasonable distribution of cooling areas of cooling sections, enhanced heat transfer efficiency of water drain cooling sections and obvious energy-saving effect.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a surface formula heater hydrophobic end difference optimization economizer, surface formula heater casing upper portion is provided with a plurality of groups of condensation section heat exchange tubes, lower part is provided with the cladding, is provided with a plurality of groups of hydrophobic cooling section heat exchange tubes in the cladding, and surface formula heater casing upper end is provided with steam inlet, and the cladding right side lower extreme is provided with hydrophobic cooling section entry, left lower extreme is provided with hydrophobic cooling section export, and hydrophobic cooling section export runs through surface formula heater body setting.
The condensing section heat exchange tube and the drain cooling section heat exchange tube are arranged in parallel with the length direction of the surface type heater shell.
A plurality of groups of baffle plates are arranged on the inner surface of the cladding in an up-down staggered way, and the heat exchange tubes of the hydrophobic cooling section are arranged through the baffle plates.
The height of the baffle plate is greater than the height of the 1/2 cladding.
The upper part of the cross section of the cladding is of a rectangular structure, and the lower part of the cross section of the cladding is of an arc structure.
According to the utility model, the shell structure is arranged at the lower part in the surface heater 8, the heat exchange tubes of the hydrophobic cooling sections are arranged in the shell structure, baffle plates are vertically and alternately arranged in the shell structure, the heat exchange tubes of the hydrophobic cooling sections penetrate through the baffle plates, heating steam enters the shell side of the surface heater from the steam inlet and is subjected to heat exchange condensation with the heat exchange tubes of the condensation sections to be hydrophobic, the hydrophobic water enters the shell through the inlets of the hydrophobic cooling sections, the design of the baffle plates increases the hydrophobic flow path, and further increases the heat exchange contact area and the heat exchange contact time, so that the heat exchange is more sufficient.
Drawings
Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.
Fig. 2 is a left side view of fig. 1.
In the figure: 1. a steam inlet; 2. a condensing section heat exchange tube; 3. an inlet of the hydrophobic cooling section; 4. a cladding; 5. a baffle plate; 6. a hydrophobic cooling section heat exchange tube; 7. an outlet of the hydrophobic cooling section; 8. surface heater.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, but the present utility model is not limited to these examples.
Example 1
In fig. 1 and 2, the shell of the surface heater 8 is in a cylindrical structure, the bottom of the shell of the surface heater 8 is provided with a base and supporting legs, the upper part of the shell of the surface heater 8 is provided with a plurality of groups of condensation section heat exchange tubes 2, the lower part of the shell of the surface heater 8 is provided with a shell 4, the shell 4 isolates steam from water, the condensation section heat exchange tubes 2, the shell 4 and the shell of the surface heater 8 are arranged in parallel in the length direction, the upper part of the cross section of the shell 4 is in a rectangular structure, the lower part of the cross section of the shell is in an arc structure, and the lower part of the shell of the surface heater 8 is in an arc structure, so that the water after heat exchange can flow better and is discharged out of the shell of the surface heater 8. A plurality of groups of hydrophobic cooling section heat exchange tubes 6 are arranged in the shell 4, the hydrophobic cooling section heat exchange tubes 6 and the surface heater 8 are arranged in parallel in the length direction, a plurality of groups of baffle plates 5 are arranged at the upper end of the shell of the surface heater 8 in a staggered manner, the steam inlet 1 can be provided with a plurality of groups, heating steam is introduced simultaneously, the right lower end of the shell 4 is provided with the hydrophobic cooling section inlet 3, the left lower end of the shell is provided with the hydrophobic cooling section outlet 7, the hydrophobic cooling section outlet 7 penetrates through the shell of the surface heater 8, heating steam enters the shell side of the surface heater 8 through the steam inlet 1, firstly, heat exchange condensation is conducted with the condensation section heat exchange tubes 2 to be hydrophobic, the hydrophobic enters the shell 4 through the hydrophobic cooling section inlet 3, in order to enable heat exchange to be more complete, a plurality of baffle plates 5 are arranged on the inner surface of the shell 4 in a staggered manner, the hydrophobic cooling section heat exchange tubes 6 penetrate through the baffle plates 5, the height of the baffle plates 5 is larger than 1/2, the hydrophobic flow path is increased, the hydrophobic entering from the hydrophobic cooling section inlet 3 flows through the hydrophobic cooling section heat exchange tubes 6 to the hydrophobic cooling section heat exchange tubes 6, the temperature is reduced, and the temperature difference is controlled to be less than or equal to the temperature difference of the temperature of the hydrophobic cooling section heat exchange tubes 7, and the temperature difference is controlled, and the temperature difference is equal to or less than or equal to the temperature difference of the temperature of the hydrophobic cooling section and is equal to or equal to the temperature.
Claims (5)
1. The utility model provides a surface heater hydrophobic end difference optimization economizer which characterized in that: the upper portion is provided with a plurality of groups of condensation section heat exchange tubes (2) in surface heater (8) casing, the lower part is provided with cladding (4), be provided with a plurality of groups of hydrophobic cooling section heat exchange tubes (6) in cladding (4), surface heater (8) casing upper end is provided with steam inlet (1), cladding (4) right side lower extreme is provided with hydrophobic cooling section entry (3), left side lower extreme is provided with hydrophobic cooling section export (7), hydrophobic cooling section export (7) run through surface heater (8) casing setting.
2. The surface heater hydrophobic end difference optimizing energy saving apparatus according to claim 1, wherein: the condensing section heat exchange tube (2), the hydrophobic cooling section heat exchange tube (6) and the surface heater (8) are arranged in parallel in the length direction of the shell.
3. The surface heater hydrophobic end difference optimizing energy saving apparatus of claim 1, wherein: a plurality of groups of baffle plates (5) are arranged on the inner surface of the cladding (4) in an up-down staggered way, and the heat exchange tubes (6) of the hydrophobic cooling section are arranged through the baffle plates (5).
4. A surface heater hydrophobic end difference optimizing energy saving apparatus as set forth in claim 3, wherein: the height of the baffle plate (5) is larger than that of the 1/2 cladding (4).
5. The surface heater hydrophobic end difference optimizing energy saving apparatus of claim 1, wherein: the upper part of the cross section of the cladding (4) is of a rectangular structure, and the lower part of the cross section of the cladding is of an arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338126.4U CN219640734U (en) | 2023-02-28 | 2023-02-28 | Hydrophobic end difference optimization energy-saving device of surface heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338126.4U CN219640734U (en) | 2023-02-28 | 2023-02-28 | Hydrophobic end difference optimization energy-saving device of surface heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219640734U true CN219640734U (en) | 2023-09-05 |
Family
ID=87821542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320338126.4U Active CN219640734U (en) | 2023-02-28 | 2023-02-28 | Hydrophobic end difference optimization energy-saving device of surface heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219640734U (en) |
-
2023
- 2023-02-28 CN CN202320338126.4U patent/CN219640734U/en active Active
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