CN219014284U - Boiler drainage waste heat recovery system - Google Patents
Boiler drainage waste heat recovery system Download PDFInfo
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- CN219014284U CN219014284U CN202222652361.7U CN202222652361U CN219014284U CN 219014284 U CN219014284 U CN 219014284U CN 202222652361 U CN202222652361 U CN 202222652361U CN 219014284 U CN219014284 U CN 219014284U
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Abstract
The utility model provides a boiler drainage waste heat recovery system, relate to boiler water system technical field, including the boiler main part, the outside of boiler main part is provided with heat exchanger and boiler feed water pump, the intercommunication is provided with the boiler drain pipe between heat exchanger and the boiler main part, the outside of boiler feed water pump is provided with the demineralized water tank, the inside demineralized water that is provided with of demineralized water tank, the outside of demineralized water tank is provided with the deaerator, the intercommunication is provided with first connecting pipe between heat exchanger and the boiler feed water pump, through set up the heat exchanger on recovery system's pipeline, when the boiler is discharging high temperature waste water, can let the boiler feed water pump draw in the demineralized water of a portion of demineralized water tank to the heat exchanger and exchange heat, the high temperature waste water that the boiler was discharged after the heat transfer obtains the cooling, and the demineralized water after the heat transfer then can utilize the back flow to input to the deaerator in the heating, the demineralized water that the intensifies in will the deaerator is sent into the boiler by the boiler feed water pump after the heating and is used, so just can be more.
Description
Technical Field
The utility model relates to the technical field of boiler water systems, in particular to a boiler drainage waste heat recovery system.
Background
The existing boiler drainage is mainly directly discharged to a sewage system or enters the sewage system after being cooled, the temperature of the boiler drainage is high and is close to 100 ℃, a certain amount of steam can be generated by direct discharge, especially in winter, the cleaning condition of a production site can be influenced and even the production can be influenced by direct discharge, and the energy consumption can be increased when the circulating water is cooled;
based on the above practical problems, under the condition that production and site are not affected, the heat exchanger is added, the boiler water feeding pump seal cooling water to be heated is used for cooling the boiler drainage, the problem that heat pollution generated by direct discharge or energy consumption caused by cooling by using circulating water is greatly increased can be solved, and meanwhile, the seal cooling water enters the deaerator after being heated, so that steam consumption of the deaerator can be further reduced.
Disclosure of Invention
The utility model aims to provide a boiler drainage waste heat recovery system, which solves the problems that when a boiler discharges high-temperature waste water, the high-temperature waste water of the boiler is cooled only by using circulating water, and after the circulating water cools the high-temperature waste water, the circulating water needs to be cooled by using corresponding equipment, so that the energy consumption is high.
The utility model provides a boiler drainage waste heat recovery system which comprises a boiler main body, wherein a heat exchanger and a boiler feed water pump are arranged on the outer side of the boiler main body, a boiler drain pipe is communicated between the heat exchanger and the boiler main body, a desalting water tank is arranged on the outer side of the boiler feed water pump, desalted water is arranged in the desalting water tank, a deaerator is arranged on the outer side of the desalting water tank, a first connecting pipe is communicated between the heat exchanger and the boiler feed water pump, a second connecting pipe is communicated between the boiler feed water pump and the desalting water tank, a desalting water pipe is communicated between the desalting water tank and the deaerator, a second boiler feed water pipe is communicated between the deaerator and the boiler feed water pump, and a first boiler feed water pipe is communicated between the boiler feed water pump and the boiler main body.
Preferably: a reflux pipe is communicated between the heat exchanger and the deaerator.
Preferably: a steam pipe is arranged between the boiler main body and the deaerator, and the steam pipe is used for inputting heating steam in the boiler into the deaerator.
Preferably: the pipeline of the desalting water pipe is provided with a water pump, and the water pump is used for conveying the desalting water in the desalting water tank to the deaerator.
Preferably: the outside intercommunication of steam pipe is provided with the blast pipe, and the pipeline department of steam pipe and blast pipe all is provided with the program control valve.
Preferably: the inside of deaerator sets up temperature transmitter, and temperature transmitter is used for monitoring water temperature, is provided with the connecting wire between temperature transmitter and the program control valve of the water pump and the steam pipe of desalting water pipe, and the connecting wire links to each other with the control program on the external PC end.
Preferably: the outside intercommunication of heat exchanger is provided with the drain pipe, and wherein boiler drain pipe is used for discharging the hot water of boiler main part, and the hot water flows in the heat exchanger and carries out the heat transfer, and the water in the boiler is discharged from the drain pipe after the heat transfer.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the heat exchanger is arranged on the pipeline of the recovery system, so that when the boiler discharges high-temperature wastewater, the boiler water feed pump can pump part of desalted water in the desalted water tank into the heat exchanger for heat exchange by the pipeline, the high-temperature wastewater discharged by the boiler is cooled after heat exchange, the desalted water after heat exchange can be input into the deaerator by the return pipe for heating, and the heated desalted water in the deaerator is fed into the boiler for use by the boiler water feed pump after heating, so that water can be saved more.
2. According to the deaerator and the steam pipe, when the deaerator is used, the return pipe is arranged, so that after the desalted water is pumped into the heat exchanger through the boiler feed pump to exchange heat, the desalted water after heat exchange can be input into the deaerator again through the return pipe, and as the desalted water fed by the return pipe has a certain temperature, the consumption of steam can be reduced when the desalted water is heated, and the heating efficiency of the desalted water in the deaerator can be effectively improved when the steam is heated.
Description of the drawings:
FIG. 1 is a schematic connection diagram of a boiler exhaust waste heat recovery system according to the present utility model.
In fig. 1: 1-a boiler body; 101-boiler drain pipes; 2-a heat exchanger; 201-a drain pipe; 202-a return pipe; 3-a boiler feed water pump; 301-a first connection tube; 302-a first boiler feed water tube; 4-a desalting water tank; 401-a second connecting tube; 402-a desalting water pipe; 5-steam pipe; 501-exhaust pipe; 6-deaerator; 601-second boiler feed water tubes.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
Example 1
As shown in fig. 1: the boiler drainage waste heat recovery system comprises a boiler main body 1, wherein a heat exchanger 2 and a boiler feed water pump 3 are arranged on the outer side of the boiler main body 1, a boiler drain pipe 101 is arranged between the heat exchanger 2 and the boiler main body 1 in a communicating manner, a drain pipe 201 is arranged on the outer side of the heat exchanger 2 in a communicating manner, the boiler drain pipe 101 is used for discharging hot water of the boiler main body 1, the hot water flows into the heat exchanger 2 for heat exchange, water in a boiler is discharged from the drain pipe 201 after heat exchange, a desalting water tank 4 is arranged on the outer side of the boiler feed water pump 3, desalting water is arranged inside the desalting water tank 4, an oxygen remover 6 is arranged on the outer side of the desalting water tank 4, a first connecting pipe 301 is arranged between the heat exchanger 2 and the boiler feed water pump 3 in a communicating manner, a second connecting pipe 401 is arranged between the boiler feed water pump 3 and the desalting water tank 4 in a communicating manner, a desalting water pipe 402 is arranged between the oxygen remover 6 and the boiler feed water pump 3 in a communicating manner, and the boiler main body 1 in a communicating manner is provided with a first boiler feed water pipe 302;
when the boiler is used, the demineralized water in the tank body is fed into the deaerator 6 by the demineralized water tank 4 for steam heating, the heated demineralized water is input to the first boiler water supply pipe 302 by the boiler water supply pump 3 after heating through the second boiler water supply pipe 601, then hot water is input to the boiler by the first boiler water supply pipe 302, and secondly, the boiler water supply pump 3 can input the water in the demineralized water tank 4 into the heat exchanger 2 for heat exchange due to the first connecting pipe 301 arranged between the boiler water supply pump 3 and the heat exchanger 2, so that the water at the demineralized water tank 4 can be heated by the hot water discharged by the boiler through the heat exchanger 2, and the cooling of boiler drainage can be realized after heating.
Example 2
On the basis of embodiment 1, as shown in fig. 1, a steam pipe 5 is arranged between a boiler main body 1 and a deaerator 6, the steam pipe 5 is used for inputting heating steam in the boiler into the deaerator 6, and a return pipe 202 is arranged between the heat exchanger 2 and the deaerator 6 in a communicating manner.
Example 3
On the basis of embodiment 1 or 2, as shown in fig. 1, a water pump is arranged at the pipeline of the demineralized water pipe 402, and is used for conveying the demineralized water in the demineralized water tank 4 to the deaerator 6;
when the boiler is used, steam of the boiler is input into the deaerator 6 through the steam pipe, demineralized water in the demineralized water tank 4 is correspondingly input into the deaerator 6 through the water pump, the demineralized water enters the deaerator 6, dissolved oxygen is removed through the steam and water is heated to a design temperature, the water is fed to the boiler for use by the boiler feed pump 3, the return pipe 202 is arranged, the demineralized water is fed into the heat exchanger 2 through the boiler feed pump 3 for heat exchange, the demineralized water after heat exchange can be input into the deaerator 6 again through the return pipe 202, and the demineralized water fed by the return pipe 202 has a certain temperature, so that consumption can be reduced when the demineralized water is heated by the steam, and heating efficiency of the demineralized water in the deaerator 6 can be effectively improved when the water is heated by the steam.
Example 4
On the basis of the above embodiment, as shown in fig. 1, the outer side of the steam pipe 5 is provided with an exhaust pipe 501 in a communicating manner, and program control valves are arranged at the pipeline positions of the steam pipe 5 and the exhaust pipe 501;
when the steam pipe 5 is used, the steam pipe 5 can be plugged through the program control valve, so that steam of the boiler cannot be input into the deaerator 6 through the steam pipe 5, and the steam of the boiler can be normally discharged through the arrangement of the exhaust pipe 501, and similarly, when the steam pipe 5 is used for conveying steam, the exhaust pipe 501 can be closed through the program control valve.
Example 5
On the basis of the above embodiment, as shown in fig. 1, in other embodiments of the present utility model, a temperature transmitter may be disposed inside the deaerator 6, the temperature transmitter is used for monitoring the water temperature, a connection line is disposed between the temperature transmitter and the water pump of the demineralized water pipe 402 and the program control valve of the steam pipe, and the connection line is connected with a control program on the external PC end;
when the deaerator is used, the water temperature in the deaerator 6 can be monitored through the temperature transmitter, steam can be used for heating the water temperature to a set value after the monitoring, and if the water temperature in the deaerator 6 is abnormal, a water pump or a program control valve can be started through a control program on an external PC end, so that the abnormal water temperature can be adjusted to a constant state.
Example 6
On the basis of the above embodiment, as shown in fig. 1, other embodiments of the present utility model exist, and each pipeline of the waste heat recovery system may be provided with a program control valve, where the program control valve is connected with a control program on an external PC end.
Claims (7)
1. The utility model provides a boiler drainage waste heat recovery system, includes boiler main part (1), its characterized in that: the utility model discloses a boiler water supply pump, including boiler main part (1), boiler main part (1) and boiler water supply pump, the outside of boiler main part (1) is provided with heat exchanger (2) and boiler water supply pump (3), the intercommunication is provided with boiler drain pipe (101) between heat exchanger (2) and the boiler main part (1), the outside of boiler water supply pump (3) is provided with desalination water tank (4), the outside of desalination water tank (4) is provided with deaerator (6), the intercommunication is provided with first connecting pipe (301) between heat exchanger (2) and boiler water supply pump (3), the intercommunication is provided with second connecting pipe (401) between boiler water supply pump (3) and the desalination water tank (4), the intercommunication is provided with desalination water pipe (402) between desalination water tank (4) and deaerator (6), the intercommunication is provided with second boiler water supply pipe (601) between deaerator (6) and boiler main part (1).
2. The boiler drain waste heat recovery system according to claim 1, wherein: a return pipe (202) is communicated between the heat exchanger (2) and the deaerator (6).
3. The boiler drain waste heat recovery system according to claim 1, wherein: a steam pipe (5) is arranged between the boiler main body (1) and the deaerator (6), and the steam pipe (5) is used for inputting heating steam in the boiler into the deaerator (6).
4. The boiler drain waste heat recovery system according to claim 1, wherein: the pipeline of the desalted water pipe (402) is provided with a water pump, and the water pump is used for conveying desalted water in the desalted water tank (4) to the deaerator (6).
5. A boiler drain waste heat recovery system according to claim 3, wherein: the outside intercommunication of steam pipe (5) is provided with blast pipe (501), and the pipeline department of steam pipe (5) and blast pipe (501) all is provided with the program-controlled valve.
6. The boiler drain waste heat recovery system according to claim 1, wherein: the deaerator (6) is internally provided with a temperature transmitter which is used for monitoring the temperature of a water body, a connecting line is arranged between the temperature transmitter and a water pump of a demineralized water pipe (402) and a program control valve of a steam pipe (5), and the connecting line is connected with a control program on an external PC end.
7. The boiler drain waste heat recovery system according to claim 1, wherein: the outside intercommunication of heat exchanger (2) is provided with drain pipe (201), and wherein boiler drain pipe (101) are used for discharging the hot water of boiler main part (1), and the hot water flows into heat exchanger (2) and carries out heat transfer, and the water in the boiler is discharged from drain pipe (201) after the heat transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222652361.7U CN219014284U (en) | 2022-10-09 | 2022-10-09 | Boiler drainage waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222652361.7U CN219014284U (en) | 2022-10-09 | 2022-10-09 | Boiler drainage waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219014284U true CN219014284U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222652361.7U Active CN219014284U (en) | 2022-10-09 | 2022-10-09 | Boiler drainage waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219014284U (en) |
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2022
- 2022-10-09 CN CN202222652361.7U patent/CN219014284U/en active Active
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