CN212538433U - Recirculated cooling water drainage system of recycling - Google Patents
Recirculated cooling water drainage system of recycling Download PDFInfo
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- CN212538433U CN212538433U CN202021161098.6U CN202021161098U CN212538433U CN 212538433 U CN212538433 U CN 212538433U CN 202021161098 U CN202021161098 U CN 202021161098U CN 212538433 U CN212538433 U CN 212538433U
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Abstract
The utility model discloses a recycling system for circulating cooling water discharge, which comprises a water collecting tank, wherein the water inlet of the water collecting tank is connected with a circulating cooling water discharge outlet, and the water outlet of the water collecting tank is respectively connected to a greening water system and a flushing water tank of a demister for desulphurization through a water recovering pump; and a liquid level meter is arranged in the water collecting tank. The utility model discloses a recirculated cooling water drainage system of recycling can carry out reasonable circulation and recycle to the direct current cooling water supply system of each process systems of carbon capture platform and recirculated cooling water supply system's cooling water drainage.
Description
Technical Field
The utility model relates to a carbon entrapment platform water supply system especially relates to a recirculated cooling water drainage system of recycling.
Background
The carbon dioxide emission amount generated by coal-fired power generation accounts for about 40% of the total carbon emission amount in China, is a main emission source of greenhouse gases, and becomes one of the bottlenecks restricting the sustainable development of the power industry. The carbon emission is controlled and reduced, the carbon capture technology of the coal-fired power plant is changed into valuable, and the important research direction of coal-fired power generation is realized.
A certain amount of cooling water is needed for each process system and equipment of the newly-built carbon capture platform, a certain amount of cooling water drainage can be generated no matter a direct-current cooling water supply system or a circulating cooling water supply system is adopted, and the circulating cooling water drainage cannot be directly discharged into a natural water body due to high salinity. In the prior art, the recycling of the part of the cooling water drainage is not comprehensively considered in the early construction stage of the coal-fired power plant, so that the part of the cooling water drainage is wasted.
Therefore, a system capable of reasonably recycling the cooling water drainage of the direct-flow cooling water supply system and the circulating cooling water supply system of each process system of the carbon capture platform is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a recirculated cooling water drainage system of recycling for carbon entrapment platform to solve technical problem: in the prior art, the recycling of the circulating cooling water drainage of the carbon capture platform is not comprehensively considered in the initial construction stage of the coal-fired power plant, so that the waste of the part of the cooling water drainage is caused.
In order to achieve the purpose, the utility model provides a circulating cooling water drainage recycling system, which comprises a water collecting tank, wherein a water inlet of the water collecting tank is connected with a circulating cooling water drainage outlet, and a water outlet of the water collecting tank is respectively connected to a greening water system and a flushing water tank of a demister for desulphurization through a water recovering pump;
and a liquid level meter is arranged in the water collecting tank.
As a preferable scheme, the circulating cooling water discharge recycling system further comprises a controller and an alarm, wherein the controller is electrically connected with the liquid level meter, the recovery water pump and the alarm respectively;
the controller receives liquid level information in the collecting water tank monitored by the liquid level meter, compares the liquid level information with preset liquid level information, and sends a signal of opening or closing to the recovery water pump.
Preferably, the water inlet of the collecting water tank is connected with the circulating cooling water discharge outlet through a water inlet pipe;
and a first exhaust valve group and a first gate valve are sequentially arranged on the water inlet pipe along the water flow direction from the circulating cooling water drainage outlet to the water inlet of the water collection tank.
As a preferred scheme, a water outlet of the water collecting tank is respectively connected with a greening water system and a flushing water tank of a demister for desulfurization through a water outlet pipe, and the recovery water pump is arranged on the water outlet pipe;
a second gate valve is arranged on a water outlet pipe between the water outlet of the water collecting tank and the water recovering pump;
a third gate valve is arranged on a water outlet pipe between the water recovery pump and the greening water system;
and a fourth gate valve is arranged on a water outlet pipe between the recovery water pump and a flushing water tank of the demister for desulfurization.
Preferably, a check valve is arranged on the water outlet pipe close to the water recovery pump.
As a preferred scheme, two recovery water pumps are connected in parallel, the two recovery water pumps are respectively connected with the second gate valve through first water outlet branch pipes, and a fifth gate valve is arranged on each first water outlet branch pipe;
and each recovery water pump is connected with the rear section of the water outlet pipe through a second water outlet branch pipe, and the check valve and the sixth gate valve are sequentially arranged on each second water outlet branch pipe along the water flow direction.
Preferably, a second exhaust valve group is further arranged on a water outlet pipe between the fourth gate valve and a flushing water tank of the desulfurization demister.
As a preferred scheme, the bottom of the collecting water tank is connected to the industrial wastewater inspection well of the power plant through a drain pipe, and a seventh gate valve is arranged on the drain pipe.
Preferably, the upper part of the collecting water tank is connected to the power plant industrial wastewater inspection well through an overflow pipe.
Preferably, the liquid level meter is a local and remote liquid level meter; the alarm is an electronic alarm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a recirculated cooling water drainage recycling system including the collection water tank, with the recirculated cooling water system drainage outlet of carbon entrapment platform connect to the water inlet of collection water tank, the delivery port of collection water tank is connected to afforestation water system and the flush tank of defroster for the desulfurization respectively through the recovery water pump, realizes that the recirculated cooling water drainage of carbon entrapment platform is whole to be retrieved and recycled, realizes recirculated cooling water zero release system; meanwhile, a liquid level meter is arranged in the collecting water tank, the liquid level information of the liquid level meter is observed to control the opening and closing of the recovery water pump, when the liquid level is at a low water level, the recovery water pump is closed, the safe operation of equipment is guaranteed, when the liquid level is in overflow, the circulating cooling water drainage is closed, all the circulating cooling water drainage can be recycled, no waste water is discharged, the zero discharge of the circulating cooling water system of the carbon capture platform is realized, the water is saved, the total water consumption of a power plant is reduced, and the environmental protection emission requirement is met.
Drawings
Fig. 1 is a schematic structural view of a recirculating cooling water recycling system according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a water recovery pump; 2. a water collection tank; 21. a water inlet pipe; 22. a water outlet pipe; 221. a first water outlet branch pipe; 222. a second outlet branch pipe; 23. a drain pipe; 24. an overflow pipe; 3. a check valve; 4. a sixth gate valve; 5. a second exhaust valve group; 6. a liquid level meter; 7. a first exhaust valve group; 11. a first gate valve; 12. a second gate valve; 13. a third gate valve; 14. a fourth gate valve; 15. a fifth gate valve; 17. a seventh gate valve.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The preferred embodiment of the recirculated cooling water recycling system of the utility model, as shown in fig. 1, comprises a collection water tank 2, the water inlet of the collection water tank 2 is connected with the recirculated cooling water discharge outlet of the carbon capture platform, the water outlet of the collection water tank 2 is respectively connected to the greening water system and the flushing water tank of the demister for desulfurization through a recovery water pump 1; the circulating cooling water drainage of the carbon capture platform is collected through the collection water tank 2, the drainage is respectively transmitted to the greening water system and the flushing water tank of the demister for desulphurization by using the recovery water pump 1, the greening water system can be used as greening water after a desalting treatment process is set, and the flushing water tank of the demister for desulphurization can be directly flushed by using the circulating cooling water drainage, so that the aim of completely recycling the circulating cooling water drainage is fulfilled, and zero discharge of the circulating cooling water system is realized. Meanwhile, a liquid level meter 6 is arranged in the collecting water tank 2, the liquid level information of the liquid level meter 6 is observed to control the opening and closing of the recovery water pump 4, when the liquid level is at a low water level, the recovery water pump 4 is closed, the safe operation of equipment is ensured, when the liquid level is in overflow, the circulating cooling water drainage is closed, all the circulating cooling water drainage can be recycled, no waste water is discharged, the zero discharge of the circulating cooling water system of the carbon capture platform is realized, the water is saved, the total water consumption of a power plant is reduced, and the environment-friendly discharge requirement is met.
Wherein, the recirculated cooling water drainage system of recycling of this application still includes controller and alarm, and level gauge 6, recovery water pump 1 and alarm are connected to the controller electricity respectively, and level gauge 6 specifically is on the spot and teletransmission level gauge, and the alarm is electronic alarm. The liquid level meter 6 is used for monitoring liquid level information in the collecting water tank 2, the liquid level information comprises a normal water level, an overflow alarm water level and a pump stop alarm water level, the recovery water pump 1 is normally started during the normal water level, and the recovery water pump 1 is all closed during the overflow alarm water level and the pump stop alarm water level. Specifically, the normal water level has been preset in the controller, overflow warning water level and the predetermined liquid level of stopping the pump warning water level, the controller receives the liquid level information in the collection water tank 2 of level gauge 6 monitoring, and compare this liquid level information with predetermined liquid level information, with the signal of opening or closing is sent to recovery water pump 1, automatic control recovery water pump 1 opens and closes, realize the operation of the whole recirculated cooling water reuse system of automatic control, can realize the zero release of carbon capture platform recirculated cooling water system drainage, the using water wisely, and the total water consumption of power plant has been reduced.
The water inlet of the collecting water tank 2 is connected with a circulating cooling water discharge outlet through a water inlet pipe 21, a first exhaust valve group 7 and a first gate valve 11 are sequentially arranged on the water inlet pipe 21 along the water flow direction from the circulating cooling water discharge outlet to the water inlet of the collecting water tank 2, and the first exhaust valve group 7 comprises a plurality of exhaust valves for adjusting the air pressure in the water inlet pipe 21 and ensuring the stability and the speed of the water flow in the water inlet pipe 21; the first gate valve 11 is used to open or close the water inlet pipe 21, and the first gate valve 11 is closed when the water level in the collecting water tank 2 is at the overflow alarm water level.
Wherein, the water outlet of the collecting water tank 2 is respectively connected with a greening water system and a flushing water tank of a demister for desulphurization through a water outlet pipe 22, the recovery water pump 1 is arranged on the water outlet pipe 22, a second gate valve 12 is arranged on the water outlet pipe 22 between the water outlet of the collecting water tank 2 and the recovery water pump 1, and a third gate valve 13 is arranged on the water outlet pipe 22 between the recovery water pump 1 and the greening water system; a fourth gate valve 14 is arranged on a water outlet pipe 22 between the recovery water pump 1 and a flushing water tank of the demister for desulfurization. The second gate valve 12 is used for controlling the water flow of the water outlet pipe 22 at the water outlet of the collecting water tank 2, and the third gate valve 13 and the fourth gate valve 14 are respectively used for controlling the water flow flowing to the water outlet pipe 22 of the flushing water tank of the greening water system and the demister for desulfurization so as to flexibly control the water flow and the water flow speed in the water outlet pipe 22 and realize the flexible and automatic control of the circulating cooling water recycling system.
Furthermore, a check valve 3 is arranged on the water outlet pipe 22 close to the recovery water pump 1, and the check valve 3 is used for preventing water discharged by the recovery water pump 1 from flowing back to the recovery water pump 1 again to cause damage to the recovery water pump 1.
In the specific embodiment of this application, recovery water pump 1 specifically is provided with two in parallel, and two recovery water pumps 1 can improve the speed and the efficiency of the circulation processing of recirculated cooling water drainage. Specifically, two recovery water pumps 1 are connected with second gate valve 12 through first water outlet branch pipe 221 respectively, all be equipped with fifth gate valve 15 on each first water outlet branch pipe 221, fifth gate valve 15 is used for controlling respectively the speed and the flow of the rivers that flow to each recovery water pump 1, the delivery port of each recovery water pump 1 is connected with the back end of outlet pipe 22 through second water outlet branch pipe 222 respectively, along the rivers direction, all be equipped with check valve 3 and sixth gate valve 4 on each second water outlet branch pipe 222 in proper order, with two recovery water pumps 1 that are used for difference independent control.
Furthermore, a second exhaust valve group 5 is further arranged on the water outlet pipe 22 between the fourth gate valve 14 and the flushing water tank of the demister for desulfurization, and is used for adjusting the air pressure in the water outlet pipe 22 and ensuring the stability and speed of the water flow in the water outlet pipe 22.
Wherein, when the recirculated cooling water drainage in collecting water tank 2 reaches overflow warning water level, for the recirculated cooling water in the discharge collection water tank 2, the bottom of collecting water tank 2 is connected to power plant's industrial waste water inspection shaft through drain pipe 23, is equipped with seventh gate valve 17 on drain pipe 23, and seventh gate valve 17 can control whether collection water tank 2 carries out the drainage. And simultaneously, the upper portion of collecting water tank 2 is connected to power plant's industrial waste water inspection shaft through overflow pipe 24, avoids the too high water level to overflow collecting water tank 2, causes the pollution.
In other embodiments of the present application, the controller of the present application may be electrically connected to the first gate valve 11, the second gate valve 12, the third gate valve 13, the fourth gate valve 14, the fifth gate valve 15, the sixth gate valve 4, and the seventh gate valve 17 at the same time, so as to flexibly control the water flow and flow rate, and the on/off state, etc. in each water pipe during the cooling water discharging circulation process of the circulating cooling water discharging recycling system
In other embodiments of the present application, the number of the recovery water pumps 1 may be increased or decreased according to the requirement; the water outlet of the recycle water pump 1 can also be connected to other systems which can use the recirculated cooling water drainage, so as to realize the reuse of the recirculated cooling water drainage.
The utility model discloses a recirculated cooling water drainage recycling system including collection water tank 2, with the recirculated cooling water system drainage outlet of carbon entrapment platform connect to the water inlet of collection water tank 2, the delivery port of collection water tank 2 is connected to afforestation water system and the flush tank of defroster for the desulfurization respectively through recovery water pump 1, realizes that the recirculated cooling water drainage of carbon entrapment platform is whole to be retrieved and recycled, realizes recirculated cooling water system zero release; meanwhile, a liquid level meter 6 is arranged in the collecting water tank 2, the liquid level information of the liquid level meter 6 is observed to control the opening and closing of the recovery water pump 4, when the liquid level is at a low water level, the recovery water pump 4 is closed, the safe operation of equipment is ensured, when the liquid level is in overflow, the circulating cooling water drainage is closed, all the circulating cooling water drainage can be recycled, no waste water is discharged, the zero discharge of the circulating cooling water system of the carbon capture platform is realized, the water is saved, the total water consumption of a power plant is reduced, and the environment-friendly emission requirement is met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A recycling system of circulating cooling water discharge is characterized in that,
the water inlet of the water collecting tank is connected with a circulating cooling water discharge outlet, and the water outlet of the water collecting tank is respectively connected to a greening water system and a flushing water tank of a desulfurization demister through a water recovery pump;
and a liquid level meter is arranged in the water collecting tank.
2. The recirculated cooling water reuse system according to claim 1, wherein said recirculated cooling water reuse system further comprises a controller and an alarm, said controller electrically connecting said level gauge, said recovery water pump and said alarm, respectively;
the controller receives liquid level information in the collecting water tank monitored by the liquid level meter, compares the liquid level information with preset liquid level information, and sends a signal of opening or closing to the recovery water pump.
3. The recirculating cooling water recirculating system of claim 1 wherein the water inlet of said collection tank is connected to said recirculating cooling water outlet by a water inlet pipe;
and a first exhaust valve group and a first gate valve are sequentially arranged on the water inlet pipe along the water flow direction from the circulating cooling water drainage outlet to the water inlet of the water collection tank.
4. The recirculated cooling water reuse system according to claim 1, wherein the water outlet of the collection tank is connected to the greening water system and the flushing tank of the demister for desulfurization through water outlet pipes, respectively, and the recovery water pump is provided on the water outlet pipe;
a second gate valve is arranged on a water outlet pipe between the water outlet of the water collecting tank and the water recovering pump;
a third gate valve is arranged on a water outlet pipe between the water recovery pump and the greening water system;
and a fourth gate valve is arranged on a water outlet pipe between the recovery water pump and a flushing water tank of the demister for desulfurization.
5. The recirculating cooling water recirculating system of claim 4 wherein a check valve is disposed on said outlet pipe adjacent said recovery water pump.
6. The recirculating cooling water reusing system as claimed in claim 5, wherein two of the recovery water pumps are connected in parallel, the two recovery water pumps are connected to the second gate valve through a first water outlet branch pipe, and a fifth gate valve is provided on each of the first water outlet branch pipes;
and each recovery water pump is connected with the rear section of the water outlet pipe through a second water outlet branch pipe, and the check valve and the sixth gate valve are sequentially arranged on each second water outlet branch pipe along the water flow direction.
7. The recirculated cooling water reuse system of claim 5, wherein a second set of exhaust valves is further provided on the outlet pipe between the fourth gate valve and the flush tank of the demister for desulfurization.
8. The recirculating cooling water reusing system as claimed in claim 1, wherein the bottom of the collecting tank is connected to the inspection well of the industrial wastewater of the power plant through a drain pipe, and a seventh gate valve is provided on the drain pipe.
9. The recirculating cooling water reusing system as claimed in claim 8, wherein an upper portion of the collecting tank is connected to the power plant industrial wastewater manhole through an overflow pipe.
10. The recirculating cooling water reusing system as claimed in claim 2, wherein said level gauge is a local and remote level gauge; the alarm is an electronic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161098.6U CN212538433U (en) | 2020-06-19 | 2020-06-19 | Recirculated cooling water drainage system of recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161098.6U CN212538433U (en) | 2020-06-19 | 2020-06-19 | Recirculated cooling water drainage system of recycling |
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| Publication Number | Publication Date |
|---|---|
| CN212538433U true CN212538433U (en) | 2021-02-12 |
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| CN202021161098.6U Active CN212538433U (en) | 2020-06-19 | 2020-06-19 | Recirculated cooling water drainage system of recycling |
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- 2020-06-19 CN CN202021161098.6U patent/CN212538433U/en active Active
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