CN215855163U - Concentrated water recycling system for demineralized water treatment workshop of thermal power plant - Google Patents
Concentrated water recycling system for demineralized water treatment workshop of thermal power plant Download PDFInfo
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- CN215855163U CN215855163U CN202121822207.9U CN202121822207U CN215855163U CN 215855163 U CN215855163 U CN 215855163U CN 202121822207 U CN202121822207 U CN 202121822207U CN 215855163 U CN215855163 U CN 215855163U
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Abstract
The utility model discloses a concentrated water recycling system for a desalted water treatment workshop of a thermal power plant, which comprises: the system comprises a concentrated water pump unit, a sprinkler butt joint unit, a discharge hall unit, a process water tank unit and a fixed-row cooling pool unit. The first end of the concentrated water pump unit is connected with a concentrated water outlet pipeline of a demineralized water treatment workshop, and the second end of the concentrated water pump unit is connected with a pump pipeline and is merged into a concentrated water main pipeline; the other end of the concentrated water main pipeline is connected with the fixed-row cooling pool unit; the sprinkler butt joint unit, the unloading hall unit and the process water tank unit are respectively connected in parallel on the concentrated water main pipeline through a plurality of second three-way pipe fittings. The concentrated water discharged from the demineralized water treatment workshop is reasonably used as flushing water for the unloading hall, water for a sprinkler, water for a process water tank and circulating cooling water with permitted water quality through different channels, so that the concentrated water discharged from the demineralized water treatment workshop can be reasonably, multiply and multiply utilized, the economic benefit is increased, and the energy conservation and emission reduction are realized.
Description
Technical Field
The utility model belongs to the field of thermal power plant equipment, and particularly relates to a concentrated water recycling system for a demineralized water treatment workshop of a thermal power plant.
Background
The waste incineration treatment scale of a general thermal power plant is 2000t/d, 3 grate waste incinerators with 750t/d and 2 steam turbine generator sets with 25MW power generation installed capacity are adopted, a boiler feedwater treatment system is designed to be provided with 2 sets of 25t/h chemical desalination water systems, and an ultrafiltration + primary reverse osmosis + secondary reverse osmosis + EDI full-membrane desalination process is adopted. Concentrated water that demineralized water treatment workshop produced among the prior art is as recirculated cooling water moisturizing, with concentrated water for the concentrated water pump to decide to arrange cooling tank, then get into the circulating water pond, because what demineralized water treatment workshop system water source adopted is the running water, so the concentrated water quality of output does not have impurity and too much salinity, can retrieve completely and replace the rational utilization in infrastructure of other running water sources again, consequently, the recycle to the concentrated water of steam power plant demineralized water treatment workshop becomes the research direction.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model provides a concentrated water recycling system for a desalted water treatment workshop of a thermal power plant, which is characterized in that concentrated water discharged from the desalted water treatment workshop is reasonably used as flushing water, water for a sprinkler, water for a process water tank and circulating cooling water of an unloading hall with permitted water quality through different channels, so that the concentrated water discharged from the desalted water treatment workshop can be reasonably, multiply and multiply utilized.
In order to achieve the above object, according to one embodiment of the present invention, there is provided a concentrated water recycling system for a desalted water treatment plant of a thermal power plant, including: the system comprises a concentrated water pump unit, a sprinkler butt joint unit, a discharge hall unit, a process water tank unit and a fixed-row cooling pool unit.
The sprinkler butt joint unit comprises a sprinkler main pipeline and a plurality of sprinkler butt joint sub-units; the discharging hall unit comprises a first butterfly valve and a discharging concentrated water pipeline, and the first butterfly valve is arranged on the discharging concentrated water pipeline; the process water tank unit comprises a second butterfly valve and a process water tank concentrated water pipeline, and the second butterfly valve is arranged on the discharging concentrated water pipeline; the first end of the concentrated water pump unit is connected with a concentrated water outlet pipeline of a demineralized water treatment workshop, the second end of the concentrated water pump unit is connected with a pump pipeline, and the pump pipeline is merged into a concentrated water main pipeline; the other end of the concentrated water main pipeline is connected with the fixed-row cooling pool unit; the sprinkler butt joint unit, the unloading hall unit and the process water tank unit are respectively connected in parallel on the concentrated water main pipeline through a plurality of second three-way pipe fittings; the sprinkler butt joint sub-unit comprises a ball valve and a sprinkler butt joint pipeline; one end of the sprinkler main pipeline is connected into the concentrated water main pipeline through one of the second three-way pipe fittings, the other end of the sprinkler main pipeline is connected with one sprinkler butt joint sub-unit, and the rest sprinkler butt joint sub-units are respectively connected in parallel on the sprinkler main pipeline through a plurality of first three-way pipe fittings.
Further, the concentrated water pump unit comprises two concentrated water pumps.
Further, the ball valve in the sprinkler butt joint sub-unit is a DN50 ball valve.
Further, the butterfly valve is DN65 butterfly valve.
Further, a third butterfly valve is arranged at an inlet of the fixed-row cooling pool unit.
The utility model has the beneficial effects that:
the concentrated water discharged from the demineralized water treatment workshop is combined and shunted through different channels, and is reasonably used as the flushing water of the unloading hall, the water for the sprinkler, the water for the process water tank and the circulating cooling water with permitted water quality, so that the concentrated water discharged from the demineralized water treatment workshop can be reasonably, multiply and multiply utilized, the economic benefit is increased, and the energy conservation and emission reduction are realized.
Drawings
Fig. 1 is a schematic structural diagram of a concentrated water recycling system of a desalted water treatment plant of a thermal power plant according to an embodiment of the utility model.
In the figure:
a concentrated water pump 1, a pump pipeline 2 and a concentrated water main pipeline 3; the system comprises a second tee pipe fitting 4, a ball valve 5, a sprinkler main pipeline 6, a first tee pipe fitting 7, a second butterfly valve 8, a first butterfly valve 9, a discharging concentrated water pipeline 10, a third butterfly valve 11 and a process water tank concentrated water pipeline 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is further provided with reference to the accompanying drawings and examples.
The concentrated water recycling system for the desalted water treatment plant of the thermal power plant comprises the following steps:
the desalting water treatment workshop of the thermal power plant is provided with 2 sets of 25t/h chemical desalting water systems for the supplying water treatment system of the boiler of the thermal power plant, and adopts the ultrafiltration + primary reverse osmosis + secondary reverse osmosis + EDI full-membrane desalination process. However, because the water source of the demineralized water treatment workshop of the thermal power plant is tap water, the quality of concentrated water produced in the whole treatment process is free from impurities and excessive salt, and therefore the concentrated water can be completely recycled to replace other tap water sources for multiple reasonable utilization.
Therefore, as shown in fig. 1, an embodiment of the present invention provides a concentrated water recycling system for a desalted water treatment plant of a thermal power plant, comprising: the system comprises a concentrated water pump unit, a sprinkler butt joint unit, a discharge hall unit, a process water tank unit and a fixed-row cooling pool unit.
The concentrated water pump unit comprises two concentrated water pumps 1 which can be used as one for standby, and is convenient to overhaul and maintain. Wherein the first end of each concentrated water pump 1 is respectively connected with a concentrated water outlet pipeline of a demineralized water treatment workshop, the second end of each concentrated water pump 1 is respectively connected with a pump pipeline 2, and the two pump pipelines 2 are merged into a concentrated water main pipeline 3. The other end of the concentrated water main pipeline 3 is connected with the fixed-row cooling pool unit, and the sprinkler butt joint unit, the unloading hall unit and the process water tank unit are respectively connected in parallel on the concentrated water main pipeline 3 through a plurality of second three-way pipe fittings 4.
The sprinkler butt joint unit comprises a sprinkler main pipeline 6 and a plurality of sprinkler butt joint sub-units; the sprinkler butt joint sub-unit comprises a ball valve 5 and a sprinkler butt joint pipeline; one end of the sprinkler main pipeline 6 is connected into the concentrated water main pipeline 3 through one of the second three-way pipe fittings 4, the other end of the sprinkler main pipeline 6 is connected with one sprinkler butt joint sub-unit, and the rest sprinkler butt joint sub-units are respectively connected in parallel on the sprinkler main pipeline 6 through a plurality of first three-way pipe fittings 7, so that the sprinkler can supplement water and operate in a factory in multiple places.
The discharging hall unit comprises a first butterfly valve 9 and a discharging concentrated water pipeline 10, one end of the discharging concentrated water pipeline 10 is connected with the concentrated water main pipeline 3 through one of the second tee pipe fittings 4, and the first butterfly valve 9 is arranged on the discharging concentrated water pipeline 10 and used for controlling the closing and opening of the discharging concentrated water pipeline 10.
The process water tank unit comprises a second butterfly valve 8 and a process water tank concentrated water pipeline 12, one end of the process water tank concentrated water pipeline 12 is connected into the concentrated water main pipeline 3 through one of the second tee pipe fittings 4, and the second butterfly valve 8 is arranged on the discharging concentrated water pipeline 12 and used for controlling the closing and opening of the process water tank concentrated water pipeline 12.
And a third butterfly valve 11 is arranged at the inlet of the constant-discharge cooling pool unit and used for controlling the closing and opening of the water flow flowing into the constant-discharge cooling pool unit from the concentrated water main pipeline 3.
In the embodiment of the utility model, the ball valve in the butt joint sub-unit of the sprinkler is a DN50 ball valve, and the butterfly valve is a DN65 butterfly valve.
When the system is used specifically, concentrated water flows into the pump pipeline 2 from a concentrated water outlet pipeline of a demineralized water treatment workshop through the concentrated water pump 1 and then is merged into the concentrated water main pipeline 3.
On the first hand, the concentrated water in the concentrated water main pipeline 3 flows into the sprinkler butt joint unit through the first second three-way pipe fitting 4, and then flows into the sprinkler butt joint sub-units through the first three-way pipe fittings 7, and the sprinkler butt joint sub-units are provided with the ball valves 5. Because the area of the factory is large, a plurality of sprinkler butt joint sub-units are needed to be arranged so as to facilitate the sprinkler to supplement water and operate in the factory.
In the second aspect, the concentrated water flows into the discharging hall unit through the third three-way pipe fitting 4 in the concentrated water main pipeline 3, the discharging concentrated water pipeline 10 of the discharging hall unit is provided with a first butterfly valve 9, the butterfly valve is small in size, the shape of the valve clack can be adjusted to design valves with different flow characteristics, and the valves are related to breaking and adjusting, and the general pipe diameter can be larger, so that the first butterfly valve 9 is suitably arranged at the position for controlling the closing and opening of the discharging concentrated water pipeline 10, and the concentrated water flows into the discharging hall through the discharging concentrated water pipeline 10 to be used as the washing water of the discharging hall.
In the third aspect, the concentrated water flows into the process water tank unit through the second three-way pipe fitting 4 in the concentrated water main pipeline 3, the second butterfly valve 8 is arranged on the concentrated water pipeline 12 of the process water tank unit, the shape of the valve clack can be adjusted to design valves with different flow characteristics, and the general pipe diameter can be larger due to the small volume of the butterfly valve, so the second butterfly valve 8 is suitably arranged for controlling the closing and opening of the concentrated water pipeline 12 of the process water tank, and the concentrated water flows into the process water tank through the concentrated water pipeline 12 of the process water tank to be used as the water supplement of the process water tank.
In the fourth aspect, the concentrated water flows into the fixed-displacement cooling pool unit through a third butterfly valve 11 in the concentrated water main pipeline 3, the third butterfly valve 11 is used for controlling the closing and opening of the water flow flowing into the fixed-displacement cooling pool unit through the concentrated water main pipeline 3, the concentrated water flows into the fixed-displacement cooling pool through the third butterfly valve 11 and then enters the circulating water pool to be used as the water supplement of the circulating cooling water in the plant area for reutilization.
The staff can carry out overall control to whole dense water recycle system, controls the injection volume of dense water in each unit with corresponding ball valve and butterfly valve, practices thrift the consumption of running water originally.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention, but all the changes made by the principles of the present invention and the non-inventive efforts based on the principles should fall into the scope of the present invention.
Claims (5)
1. The utility model provides a concentrated water recycle system in steam power plant demineralized water treatment workshop which characterized in that, it includes: the system comprises a concentrated water pump unit, a sprinkler butt joint unit, a discharge hall unit, a process water tank unit and a fixed-row cooling pool unit;
the sprinkler butt joint unit comprises a sprinkler main pipeline and a plurality of sprinkler butt joint sub-units;
the discharging hall unit comprises a first butterfly valve and a discharging concentrated water pipeline, and the first butterfly valve is arranged on the discharging concentrated water pipeline;
the process water tank unit comprises a second butterfly valve and a process water tank concentrated water pipeline, and the second butterfly valve is arranged on the discharging concentrated water pipeline;
the first end of the concentrated water pump unit is connected with a concentrated water outlet pipeline of a demineralized water treatment workshop, the second end of the concentrated water pump unit is connected with a pump pipeline, and the pump pipeline is merged into a concentrated water main pipeline; the other end of the concentrated water main pipeline is connected with the fixed-row cooling pool unit; the sprinkler butt joint unit, the unloading hall unit and the process water tank unit are respectively connected in parallel on the concentrated water main pipeline through a plurality of second three-way pipe fittings; the sprinkler butt joint sub-unit comprises a ball valve and a sprinkler butt joint pipeline; one end of the sprinkler main pipeline is connected into the concentrated water main pipeline through one of the second three-way pipe fittings, the other end of the sprinkler main pipeline is connected with one sprinkler butt joint sub-unit, and the rest sprinkler butt joint sub-units are respectively connected in parallel on the sprinkler main pipeline through a plurality of first three-way pipe fittings.
2. The concentrated water recycling system for the desalted water treatment plant of the thermal power plant as claimed in claim 1, wherein said concentrated water pump unit comprises two concentrated water pumps.
3. The concentrated water recycling system for the desalted water treatment plant of the thermal power plant as claimed in claim 1, wherein the ball valve in the sub-unit of the sprinkler is DN50 ball valve.
4. The concentrated water recycling system for the desalted water treatment plant of the thermal power plant as claimed in claim 1, wherein said butterfly valve is DN65 butterfly valve.
5. The concentrated water recycling system for the desalted water treatment plant of the thermal power plant as claimed in claim 1, wherein the inlet of the fixed-row cooling cell unit is provided with a third butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822207.9U CN215855163U (en) | 2021-08-04 | 2021-08-04 | Concentrated water recycling system for demineralized water treatment workshop of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822207.9U CN215855163U (en) | 2021-08-04 | 2021-08-04 | Concentrated water recycling system for demineralized water treatment workshop of thermal power plant |
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| CN215855163U true CN215855163U (en) | 2022-02-18 |
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| CN202121822207.9U Active CN215855163U (en) | 2021-08-04 | 2021-08-04 | Concentrated water recycling system for demineralized water treatment workshop of thermal power plant |
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| CN (1) | CN215855163U (en) |
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2021
- 2021-08-04 CN CN202121822207.9U patent/CN215855163U/en active Active
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