CN219063435U - Novel concentrated supply compressed air's of back of body press power plant energy recuperation system - Google Patents
Novel concentrated supply compressed air's of back of body press power plant energy recuperation system Download PDFInfo
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- CN219063435U CN219063435U CN202223033840.7U CN202223033840U CN219063435U CN 219063435 U CN219063435 U CN 219063435U CN 202223033840 U CN202223033840 U CN 202223033840U CN 219063435 U CN219063435 U CN 219063435U
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Abstract
The utility model relates to a novel energy recovery system for intensively supplying compressed air in a back press power plant, which belongs to the technical field of power plant boilers and comprises a slag cooler, a hybrid condenser, a relay water tank, a deaerator, a compressor, a heat exchange assembly, a cooling assembly, a compressed air storage tank and a cooling tower; the input ends of the slag cooler and the mixed condenser are connected with a desalted water main pipe, the output ends of the slag cooler and the mixed condenser are connected with the input end of a relay water tank, the output end of the relay water tank is connected with the input end of a deaerator, and the output end of the deaerator is connected with a boiler; the compressor comprises a first compression cylinder, a second compression cylinder and a third compression cylinder. The utility model realizes the energy reutilization, can achieve the effects of reducing the consumption of cooling water, reducing the operation energy consumption of the back pressure unit and reducing the investment of the cooling tower.
Description
Technical Field
The utility model relates to a novel energy recovery system for intensively supplying compressed air in a back press power plant, and belongs to the technical field of power plant boilers.
Background
The concentrated supply of compressed air refers to the process of compressing air to a certain pressure by a compressor and delivering the compressed air to users by a compressed air pipeline, and heat energy is released during the compression process of the air, and in general, heat generated by a compressed air station in a thermal power plant is taken away by a cooling tower as industrial waste heat, but the treatment mode not only wastes the compression heat of the air, but also needs a large amount of cooling water and is configured with a cooling tower of a corresponding scale, thereby increasing the investment and the operation cost of the system.
Disclosure of Invention
In order to overcome the defects of high cost, energy waste and the like of the existing method for treating the heat generated by the compressed air station in the thermal power plant, the utility model designs the novel energy recovery system for intensively supplying compressed air in the back press power plant, which realizes energy recycling, and can achieve the effects of reducing the consumption of cooling water, reducing the operation energy consumption of a back pressure unit and reducing the investment of a cooling tower.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the novel energy recovery system for intensively supplying compressed air in a back press power plant comprises a slag cooler, a hybrid condenser, a relay water tank, a deaerator, a compressor, a heat exchange assembly, a cooling assembly, a compressed air storage tank and a cooling tower; the input ends of the slag cooler and the mixed condenser are connected with a desalted water main pipe, the output ends of the slag cooler and the mixed condenser are connected with the input end of a relay water tank, the output end of the relay water tank is connected with the input end of a deaerator, and the output end of the deaerator is connected with a boiler; the heat exchange assembly comprises a plurality of heat exchangers, the cooling assembly comprises a plurality of coolers, the water side inlet of each heat exchanger is connected with a connecting pipeline between the slag cooler and the relay water tank through a first main pipe, the water side outlet of each heat exchanger is connected with the relay water tank through a second main pipe, a valve I is arranged on the first main pipe, and a valve II (11) is arranged at the rear end of a branching point of the connecting pipeline between the slag cooler and the relay water tank; the water side inlet of each cooler is connected with the water outlet of the cooling tower, and the water side outlet of each cooler is connected with the water inlet of the cooling tower; the compressor comprises a plurality of compression cylinders, an air inlet of the first compression cylinder is connected with the atmosphere, an air outlet of the first compression cylinder is sequentially connected with an air side of a heat exchanger, an air side of a cooler and an air inlet of the second compression cylinder in series, an air outlet of the second compression cylinder is sequentially connected with an air side of a heat exchanger, an air side of the cooler and an air inlet of the third compression cylinder in series, the heat exchanger and the cooler are sequentially connected between the compression cylinders until an air outlet of the last compression cylinder is sequentially connected with an air side of the last heat exchanger and an air side of the last cooler in series, an air outlet of the last cooler is connected with an air inlet of a compressed air storage tank, and an output end of the compressed air storage tank is output to a compressed air user.
Further, the compressor comprises three compression cylinders, namely a compression cylinder I, a compression cylinder II and a compression cylinder III, the heat exchange assembly comprises a heat exchanger I, a heat exchanger II and a heat exchanger III, and the cooling assembly comprises a cooler I, a cooler II and a cooler III.
Further, three slag coolers are arranged in parallel.
Further, five branch pipes which are mutually connected in parallel are connected between the desalted water main pipe and the hybrid condenser.
Further, both the heat exchanger and the cooler are counter-flow heat exchangers.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
according to the deaerator, the plurality of heat exchangers are arranged, and the deaeration water is heated through the heat exchangers, so that the temperature of the deaeration water entering the deaerator is obviously improved, the deaeration steam consumption in the deaerator can be reduced, and the running efficiency and the power generation output of the back pressure unit are improved; meanwhile, heat generated in the operation of the compressor unit can be partially cooled by the desalted water through the heat exchanger, so that the consumption of cooling water is reduced, and the investment of a cooling tower is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall connection of the present utility model.
Wherein the reference numerals are as follows: 1. a slag cooler; 2. a hybrid condenser; 3. a relay water tank; 4. a deaerator; 5. a compressor; 51. a first compression cylinder; 52. a compression cylinder II; 53. a compression cylinder III; 6. a heat exchange assembly; 7. a cooling assembly; 8. a compressed air storage tank; 9. a cooling tower; 10. a valve I; 11. a second valve; 13. a desalted water main pipe; 14. a boiler; 15. a primary pipe I; 16. and a main pipe II.
Detailed Description
The present utility model will be described in more detail with reference to examples.
As shown in fig. 1, the energy recovery system for intensively supplying compressed air in the novel back press power plant of the embodiment comprises a slag cooler 1, a hybrid condenser 2, a relay water tank 3, a deaerator 4, a compressor 5, a heat exchange component 6, a cooling component 7, a compressed air storage tank 8 and a cooling tower 9;
the input ends of the slag cooler 1 and the hybrid condenser 2 are connected with a desalted water main pipe 13 through pipelines, the output ends of the slag cooler 1 and the hybrid condenser 2 are connected with the input end of a relay water tank 3 through pipelines, a pump body and a plurality of valves are arranged between the hybrid condenser 2 and the relay water tank 3, the output end of the relay water tank 3 is connected with the input end of a deaerator 4 through a pipeline, the pump body and the plurality of valves are arranged between the relay water tank 3 and the deaerator 4, the output end of the deaerator 4 is connected with a boiler 14, desalted water is output by the deaerator 4, and the desalted water is heated into main steam in the boiler 14;
in the embodiment, three compression cylinders are selected according to the pressure required by an external compressed air user, and three heat exchangers and three coolers are selected according to the actual system condition and the number of the compression cylinders of the compressor; the compressor 5 comprises a first compression cylinder 51, a second compression cylinder 52 and a third compression cylinder 53, the heat exchange assembly 6 comprises a first heat exchanger, a second heat exchanger and a third heat exchanger, the cooling assembly 7 comprises a first cooler, a second cooler and a third cooler, an air inlet of the first compression cylinder 51 is connected with the atmosphere through a filter, and an air outlet of the first compression cylinder 51 is respectively connected with an air side of the first heat exchanger, an air side of the first cooler and an air inlet of the second compression cylinder 52 in series in sequence; the air outlet of the second compression cylinder 52 is respectively connected with the air side of the second heat exchanger, the air side of the second cooler and the air inlet of the third compression cylinder 53 in series; the air outlet of the third compression cylinder 53 is respectively connected with the air side of the third heat exchanger, the air side of the third cooler and the air inlet of the compressed air storage tank 8 in series in sequence, and the output end of the compressed air storage tank 8 is output to a compressed air user;
the water side inlets of the first heat exchanger, the second heat exchanger and the third heat exchanger are connected with the connecting pipeline between the slag cooler 1 and the relay water tank 3 through a first main pipe 15, the water side outlets of the first heat exchanger, the second heat exchanger and the third heat exchanger are connected with the relay water tank 3 through a second main pipe 16, a valve I10 is arranged on the first main pipe 15, a valve II 11 is arranged at the rear end of a branching point of the connecting pipeline between the slag cooler 1 and the relay water tank 3, the water side inlets of the first cooler, the second cooler and the third cooler are connected with the water outlet of the cooling tower 9, and the water side outlets of the first cooler, the second cooler and the third cooler are connected with the water inlet of the cooling tower 9;
the hybrid condenser 2 has the functions of absorbing the exhaust steam of the back pressure machine, reducing the exhaust steam back pressure of the back pressure machine, increasing the power generation output of the back pressure machine set, heating desalted water and improving the operation efficiency of the back pressure machine system; the relay water tank has the functions of mixing multiple water flows and buffering before the deaerator, and the pump and the pipeline among the components of the system have the functions of boosting and conveying desalted water.
Particularly, the water side inlets of the first heat exchanger, the second heat exchanger and the third heat exchanger are converged through branch pipes and finally connected with the first main pipe 15; the water side outlets of the first heat exchanger, the second heat exchanger and the third heat exchanger are collected through branch pipes and finally connected with the second main pipe 16; the inlets of the water sides of the first cooler, the second cooler and the third cooler are collected through branch pipes, and are finally connected with the water outlet of the cooling tower 9 through a main pipe III; the water side outlets of the first cooler, the second cooler and the third cooler are collected through the branch pipes, and finally are connected with the water inlet of the cooling tower 9 through the fourth main pipe, and the main pipes are collected through the branch pipes, so that the laying of pipelines is reduced, the structure of the pipelines is simplified, the maintenance is convenient, and the maintenance efficiency is improved.
Further, three slag coolers 1 are arranged, the three slag coolers 1 are arranged in parallel, two slag coolers 1 run, one is standby, the boiler is cooled by desalted water for deslagging, and part of heat is recovered.
Further, five branch pipes which are mutually connected in parallel are connected between the desalted water main pipe 13 and the hybrid condenser 2, desalted water is sprayed into the hybrid condenser 2 from different five ports through the five branch pipes, the effect of enhancing heat exchange between the desalted water and exhaust steam of the back pressure machine is achieved, back pressure is effectively reduced, and the power generation output of the back pressure unit is increased.
Further, the heat exchanger and the cooler are both countercurrent heat exchangers, and compared with the concurrent heat exchanger, the countercurrent heat exchanger can achieve the effect of reducing heat exchange area.
The working principle of the utility model is as follows: the compressor 5 is turned on or off according to the demand of the compressed air user;
when the compressor 5 is not put into operation, the valve I10 is closed, the valve II 11 is opened, desalted water in the desalted water main pipe 13 respectively enters the slag cooler 1 and the mixed condenser 2, after the desalted water is heated by the slag cooler 1, the temperature of the desalted water is raised to about 40 ℃, after the desalted water is heated by the mixed condenser 2, the temperature of the desalted water is raised to about 80 ℃, two desalted water flows are mixed in the relay water tank 3, the final temperature is about 72 ℃, and then the desalted water enters the boiler 14 through the deaerator 4 to be heated into main steam;
when the compressor 5 is put into operation, the valve II 11 is closed, the valve I10 is opened, the desalted water in the desalted water main pipe 13 respectively enters the slag cooler 1 and the hybrid condenser 2, and the desalted water output from the slag cooler 1 continuously enters the heat exchange assembly 6 for heat exchange, so that the desalted water is heated to about 80 ℃; at the same time, the desalted water heated by the hybrid condenser 2 is heated to about 80 ℃, two water flows (respectively outputted from the slag cooler 1 and outputted from the hybrid condenser 2) are mixed in the relay water tank 3, the final temperature is about 80 ℃, the air outlet temperature of each compression cylinder of the compressor 5 is about 150 ℃, the air temperature after being cooled by the heat exchange assembly 6 is about 60 ℃, and the air temperature after being cooled by the cooling assembly 7 is about 40 ℃.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (5)
1. Novel concentrated supply compressed air's of back press power plant energy recuperation system, its characterized in that: the device comprises a slag cooler (1), a hybrid condenser (2), a relay water tank (3), a deaerator (4), a compressor (5), a heat exchange component (6), a cooling component (7), a compressed air storage tank (8) and a cooling tower (9);
the input ends of the slag cooler (1) and the mixed condenser (2) are connected with a desalted water main pipe (13), the output ends of the slag cooler (1) and the mixed condenser (2) are connected with the input end of a relay water tank (3), the output end of the relay water tank (3) is connected with the input end of a deaerator (4), and the output end of the deaerator (4) is connected with a boiler (14);
the heat exchange assembly (6) comprises a plurality of heat exchangers, the cooling assembly (7) comprises a plurality of coolers, the water side inlets of the heat exchangers are connected with a connecting pipeline between the slag cooler (1) and the relay water tank (3) through a primary pipe I (15), the water side outlets of the heat exchangers are connected with the relay water tank (3) through a primary pipe II (16), a valve I (10) is arranged on the primary pipe I (15), and a valve II (11) is arranged at the rear end of a branching point of a connecting pipeline between the slag cooler (1) and the relay water tank (3); the water side inlet of each cooler is connected with the water outlet of the cooling tower (9), and the water side outlet of each cooler is connected with the water inlet of the cooling tower (9);
the compressor (5) comprises a plurality of compression cylinders, wherein an air inlet of the first compression cylinder is connected with the atmosphere, an air outlet of the first compression cylinder is sequentially connected with an air side of a heat exchanger, an air side of a cooler and an air inlet of the second compression cylinder in series, an air outlet of the second compression cylinder is sequentially connected with an air side of a heat exchanger, an air side of a cooler and an air inlet of the third compression cylinder in series, the heat exchanger and the cooler are sequentially connected between the compression cylinders until an air outlet of the last compression cylinder is sequentially connected with an air side of the last heat exchanger and an air side of the last cooler in series, an air outlet of the air side of the last cooler is connected with an air inlet of a compressed air storage tank (8), and an output end of the compressed air storage tank (8) is output to a compressed air user.
2. The novel concentrated compressed air supply energy recovery system for a back press power plant of claim 1, wherein: the compressor (5) comprises three compression cylinders, namely a compression cylinder I (51), a compression cylinder II (52) and a compression cylinder III (53), the heat exchange assembly (6) comprises a heat exchanger I, a heat exchanger II and a heat exchanger III, and the cooling assembly (7) comprises a cooler I, a cooler II and a cooler III.
3. The novel concentrated compressed air supply energy recovery system for a back press power plant of claim 1, wherein: the slag cooler (1) is provided with three slag coolers (1) which are mutually connected in parallel.
4. The novel concentrated compressed air supply energy recovery system for a back press power plant of claim 1, wherein: five branch pipes which are mutually connected in parallel are connected between the desalted water main pipe (13) and the hybrid condenser (2).
5. The novel concentrated compressed air supply energy recovery system for a back press power plant of claim 1, wherein: the heat exchanger and the cooler are both countercurrent heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033840.7U CN219063435U (en) | 2022-11-14 | 2022-11-14 | Novel concentrated supply compressed air's of back of body press power plant energy recuperation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033840.7U CN219063435U (en) | 2022-11-14 | 2022-11-14 | Novel concentrated supply compressed air's of back of body press power plant energy recuperation system |
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| Publication Number | Publication Date |
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| CN219063435U true CN219063435U (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223033840.7U Active CN219063435U (en) | 2022-11-14 | 2022-11-14 | Novel concentrated supply compressed air's of back of body press power plant energy recuperation system |
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| CN (1) | CN219063435U (en) |
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- 2022-11-14 CN CN202223033840.7U patent/CN219063435U/en active Active
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