CN220206414U - Final low-pressure heater of condenser - Google Patents
Final low-pressure heater of condenser Download PDFInfo
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- CN220206414U CN220206414U CN202321456438.1U CN202321456438U CN220206414U CN 220206414 U CN220206414 U CN 220206414U CN 202321456438 U CN202321456438 U CN 202321456438U CN 220206414 U CN220206414 U CN 220206414U
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- 239000010959 steel Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of power plant condensers, and particularly relates to a final-stage low-pressure heater of a condenser, which comprises a condenser unit, wherein the condenser unit comprises a low-pressure condenser, a high-pressure condenser and two groups of mounting brackets, the two groups of mounting brackets are respectively arranged on the outer sides of the low-pressure condenser and the high-pressure condenser, which are far away from each other, the end surfaces of the two mounting brackets are fixedly provided with a final-stage low-pressure heater and a penultimate low-pressure heater, and the upper parts of the low-pressure condenser and the high-pressure condenser are fixedly communicated with a steam extraction pipe. According to the utility model, the low-pressure heater is externally arranged, so that the throat support structure of the condenser can be optimized, the flow resistance of steam in the throat of the condenser is reduced, the back pressure of the discharged steam is further reduced, the circulation efficiency of a unit is improved, a certain energy-saving effect is achieved, meanwhile, the manufacturing cost of the condenser is also reduced, the external arrangement can reduce the installation workload of related equipment of the condenser, and convenience is provided for overhauling, maintenance, leakage detection and the like of the equipment.
Description
Technical Field
The utility model belongs to the technical field of power plant condensers, and particularly relates to a final-stage low-pressure heater of a condenser.
Background
The low-pressure heater is generally arranged at the throat part of the condenser, and utilizes the steam which performs partial work in the low-pressure cylinder of the steam turbine to be pumped into the heater for heating condensation water, so that the temperature of the water is increased, the steam quantity discharged into the condenser by the steam turbine is reduced, the energy loss is reduced, and the circulation efficiency of a thermodynamic system is improved.
At present, the technology of the thermal power plant in China is continuously developed in recent years, the reduction of the heat consumption of a steam turbine by optimizing the back pressure of the steam condenser is an effective way for realizing energy conservation, wherein a common low-pressure heater is arranged in a mode shown in a figure 1, a and b are respectively two low-pressure cylinders, c and d are respectively a last-stage low-pressure heater and a next-stage low-pressure heater, c and d are respectively arranged at the throat position of the steam condenser, the steam turbine at the last stage has low steam extraction pressure and large specific volume, and the caliber of a steam extraction pipeline is large. The purpose of arranging the final low-pressure heater in the throat of the condenser is to save the length of the last stage steam extraction pipeline and save the space for arranging the last stage low-pressure heater and the pipeline;
however, for a high-capacity and high-parameter unit, the size and weight of the final-stage low-pressure heater are larger, the low-adding pipeline is built in for supporting, the throat structure of the condenser is complex in design, the flow resistance of steam is greatly increased, the back pressure of exhaust steam is improved, the thermodynamic cycle efficiency is affected, the bearing of the built-in low-adding pipeline and the bearing of the pipeline are considered in the design of the condenser, the manufacturing cost is high, the built-in low-pressure heater is not beneficial to the installation, the overhaul, the maintenance and the leak detection of equipment, and therefore, the final-stage low-pressure heater of the condenser is provided for solving the problems.
Disclosure of Invention
The utility model aims to solve the problems and provides a final low-pressure heater of a condenser.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a condenser final stage low pressure heater, includes the condenser unit, the condenser unit includes low pressure condenser, high pressure condenser and two sets of installing support, two sets of the installing support sets up respectively in the outside that keeps away from each other of low pressure condenser and high pressure condenser, and the terminal surface of two installing support is equal fixed mounting has final stage low pressure heater and penultimate low pressure heater, the upper portion of low pressure condenser and high pressure condenser is all fixed to be linked together and is had the steam extraction pipe, the steam inlet end of final stage low pressure heater and penultimate low pressure heater is all fixed to be linked together and is had the steam inlet pipe, two the steam inlet pipe all with the fixed intercommunication setting of homonymy steam extraction pipe.
Preferably, two opposite ends of the mounting bracket are fixedly provided with fixing frames, two rolling mechanisms are arranged on the fixing frames, the rolling ends of the two rolling mechanisms are fixedly connected with two steel cables, carrying frames are arranged below one side of the mounting bracket, and the two carrying frames are fixedly arranged at the ends of the two steel cables on the same side.
Preferably, two control valves are arranged in the steam extraction pipes, and the two control valves are respectively arranged at the steam inlet end and the steam outlet end of the steam extraction pipe.
Preferably, the upper ends of the side walls of the final-stage low-pressure heater and the penultimate low-pressure heater are fixedly connected with a group of stay cables, and the end parts of the stay cables on the same side are fixedly connected with a hanging top plate.
Preferably, the tops of the two mounting brackets are fixedly provided with fences, and the final-stage low-pressure heater and the penultimate low-pressure heater are both arranged on the inner sides of the same side fences.
Preferably, the number of the steam extraction pipes at one side of the low-pressure condenser and the high-pressure condenser is a plurality of.
Compared with the prior art, the condenser final-stage low-pressure heater has the advantages that:
according to the utility model, through the mutual matching of the condenser, the low-pressure condenser, the high-pressure condenser, the mounting bracket, the final-stage low-pressure heater, the penultimate low-pressure heater, the steam extraction pipe and the steam inlet pipe, the mode that the final-stage low-pressure heater and the penultimate low-pressure heater are arranged externally can be changed, the mode that the traditional low-pressure heater is arranged at the throat part of the condenser is changed, the throat part supporting structure of the condenser can be optimized, the flow resistance of steam in the throat part of the condenser is reduced, the back pressure of the steam exhaust is further reduced, the circulation efficiency of a unit is improved, a certain energy-saving effect is achieved, meanwhile, the manufacturing cost of the condenser is reduced, the external arrangement can also reduce the mounting workload of related equipment of the condenser, and convenience is provided for overhaul, maintenance, leak detection and the like of the equipment.
Drawings
FIG. 1 is a schematic diagram showing an arrangement of an embodiment 1 of a low-pressure heater of a condenser in the prior art;
fig. 2 is a schematic structural diagram of an embodiment 1 of a final low-pressure heater of a condenser provided by the utility model;
fig. 3 is a schematic side view of an embodiment 1 of a final low-pressure heater of a condenser according to the present utility model;
fig. 4 is a schematic structural diagram of embodiment 2 of a final low-pressure heater of a condenser provided by the utility model;
fig. 5 is a schematic structural diagram of embodiment 3 of a final low-pressure heater of a condenser provided by the utility model;
fig. 6 is a schematic structural diagram of an embodiment 4 of a final low-pressure heater of a condenser provided by the utility model;
in the figure: 1. a condenser; 2. a low pressure condenser; 3. a high-pressure condenser; 4. a mounting bracket; 5. a final low pressure heater; 6. a penultimate low pressure heater; 7. a steam extraction pipe; 12. a fixing frame; 13. a winding mechanism; 14. a wire rope; 15. a carrying frame; 16. a control valve; 17. stay cables; 18. a top plate is hung; 19. and (5) a fence.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
As shown in fig. 1-3, a final low-pressure heater of a condenser comprises a condenser unit 1, the condenser unit 1 comprises a low-pressure condenser 2, a high-pressure condenser 3 and two groups of mounting brackets 4, the two groups of mounting brackets 4 are respectively arranged on the outer sides of the low-pressure condenser 2 and the high-pressure condenser 3, which are far away from each other, the end faces of the two mounting brackets 4 are fixedly provided with a final low-pressure heater 5 and a sub-final low-pressure heater 6, steam extraction ports at the upper parts of the low-pressure condenser 2 and the high-pressure condenser 3 are fixedly communicated with steam extraction pipes 7, steam inlet ends of the final low-pressure heater 5 and the sub-final low-pressure heater 6 are fixedly communicated with steam inlet pipes, the two steam inlet pipes are fixedly communicated with the steam extraction pipes 7 at the same side, and the two mounting brackets 4 are generally arranged on a civil engineering supporting structure (not shown in the figure), and load is borne by the civil engineering supporting structure.
Specifically, the steam extraction ports of the low-pressure condenser 2 and the high-pressure condenser 3 of the embodiment are arranged at the top ends of the low-pressure condenser 2 and the high-pressure condenser 3, and the steam extraction pipe 7 is led out from the top ends and connected with the corresponding steam inlet pipe.
The opposite ends of the two mounting brackets 4 are fixedly provided with fixing frames 12, the two fixing frames 12 are provided with winding mechanisms 13, the winding ends of the two winding mechanisms 13 are fixedly connected with two steel ropes 14, one side lower part of the two mounting brackets 4 is provided with carrying frames 15, the two carrying frames 15 are fixedly arranged with the ends of the two steel ropes 14 on the same side, and by means of the arrangement, the maintenance of the final-stage low-pressure heater 5 and the penultimate low-pressure heater 6 can be conveniently carried by conveying personnel, tools and the like.
Two control valves 16 are arranged in each steam extraction pipe 7, and the two control valves 16 are respectively arranged at the steam inlet end and the steam outlet end in the steam extraction pipe 7, so that the on-off of the two ends of the steam extraction pipe 7 can be controlled conveniently.
The upper ends of the side walls of the final-stage low-pressure heater 5 and the penultimate low-pressure heater 6 are fixedly connected with a group of stay cables 17, and the end parts of the stay cables 17 on the same side are fixedly connected with a hanging top plate 18, so that the installation stability of the final-stage low-pressure heater 5 and the penultimate low-pressure heater 6 can be improved.
The rail 19 is fixedly installed at the tops of the two mounting brackets 4, and the final-stage low-pressure heater 5 and the penultimate low-pressure heater 6 are located on the inner sides of the same side rail 19, so that the safety of the tops of the mounting brackets can be improved.
The number of the steam extraction pipes 7 at one side of the low-pressure condenser 2 and the high-pressure condenser 3 is a plurality of settings, so that the steam extraction quantity can meet the use requirement.
The principle of operation of the present utility model will now be described as follows: the final-stage low-pressure heater 5 and the penultimate-stage low-pressure heater 6 are arranged outside the low-pressure condenser 2 and the high-pressure condenser 3, so that the throat supporting structure of the condenser 1 can be simplified, the steam extraction pipe 7 at the upper part is arranged externally, the subsequent overhaul and maintenance can be facilitated, the mode that the traditional low-pressure heater is arranged at the throat of the condenser is changed, the throat supporting structure of the condenser can be optimized, the flow resistance of steam in the throat of the condenser is reduced, the steam exhaust back pressure is further reduced, the circulation efficiency of a unit is improved, the steam exhaust flow resistance can be reduced by more than 0.05kPa according to the calculation result of modeling according to a flow field, the energy-saving effect is achieved, the manufacturing cost of the condenser is reduced, the overhaul and maintenance are convenient, and the use effect is good.
Example 2
As shown in fig. 4, the difference between this embodiment and embodiment 1 is that the steam extraction ports of the low-pressure condenser 2 and the high-pressure condenser 3 of this embodiment are both disposed at the sides thereof, and the steam extraction pipe 7 is horizontally led out from the sides and then connected to the corresponding steam inlet pipe.
Example 3
As shown in fig. 5, the difference between the present embodiment and embodiment 1 is that the steam extraction ports of the low-pressure condenser 2 and the high-pressure condenser 3 of the present embodiment are both disposed at the sides thereof, and the steam extraction pipe 7 is horizontally led out from the sides and then connected to the corresponding steam inlet pipe downward.
Example 4
As shown in fig. 6, the difference between the present embodiment and embodiment 1 is that the steam extraction ports of the low pressure condenser 2 and the high pressure condenser 3 of the present embodiment are both disposed inside the low pressure condenser, and the steam extraction pipe 7 is led out horizontally from the inside of the low pressure condenser and then is connected to the corresponding steam inlet pipe.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. The utility model provides a condenser final stage low pressure heater, includes condenser unit (1), its characterized in that, condenser unit (1) is including low pressure condenser (2), high pressure condenser (3) and two sets of installing support (4), two sets of installing support (4) set up respectively in the outside that keeps away from each other of low pressure condenser (2) and high pressure condenser (3), the terminal surface of two installing support (4) is equal fixed mounting have final stage low pressure heater (5) and penultimate low pressure heater (6), the upper portion of low pressure condenser (2) and high pressure condenser (3) is all fixed to be linked together and is had steam extraction pipe (7), the steam inlet end of final stage low pressure heater (5) and penultimate low pressure heater (6) is all fixed to be linked together and is had the steam inlet pipe, two steam inlet pipe all with homonymous steam extraction pipe (7) fixed intercommunication setting.
2. The final-stage low-pressure heater of a condenser according to claim 1, wherein a fixing frame (12) is fixedly arranged at opposite ends of two mounting brackets (4), a winding mechanism (13) is arranged on each fixing frame (12), two steel cables (14) are fixedly connected to winding ends of each winding mechanism (13), carrying frames (15) are arranged below one side of each mounting bracket (4), and the two carrying frames (15) are fixedly arranged at ends of the two steel cables (14) at the same side.
3. The final-stage low-pressure heater of a condenser according to claim 1, wherein two control valves (16) are arranged in each steam extraction pipe (7), and the two control valves (16) are respectively arranged at the steam inlet end and the steam outlet end in the steam extraction pipe (7).
4. The condenser final-stage low-pressure heater according to claim 1, wherein a group of stay cables (17) are fixedly connected to the upper ends of the side walls of the final-stage low-pressure heater (5) and the penultimate low-pressure heater (6), and a hanging plate (18) is fixedly connected to the end parts of the stay cables (17) on the same side.
5. The final-stage low-pressure heater of a condenser according to claim 1, wherein the tops of the two mounting brackets (4) are fixedly provided with fences (19), and the final-stage low-pressure heater (5) and the penultimate low-pressure heater (6) are arranged on the inner sides of the same side fences (19).
6. The final low-pressure heater of a condenser according to claim 1, wherein the number of the steam extraction pipes (7) at one side of the low-pressure condenser (2) and the high-pressure condenser (3) is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321456438.1U CN220206414U (en) | 2023-06-08 | 2023-06-08 | Final low-pressure heater of condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321456438.1U CN220206414U (en) | 2023-06-08 | 2023-06-08 | Final low-pressure heater of condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220206414U true CN220206414U (en) | 2023-12-19 |
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ID=89146892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321456438.1U Active CN220206414U (en) | 2023-06-08 | 2023-06-08 | Final low-pressure heater of condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220206414U (en) |
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2023
- 2023-06-08 CN CN202321456438.1U patent/CN220206414U/en active Active
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