CN215483404U - Rainwater collecting and processing system for thermal power plant area - Google Patents
Rainwater collecting and processing system for thermal power plant area Download PDFInfo
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- CN215483404U CN215483404U CN202121793537.XU CN202121793537U CN215483404U CN 215483404 U CN215483404 U CN 215483404U CN 202121793537 U CN202121793537 U CN 202121793537U CN 215483404 U CN215483404 U CN 215483404U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a thermal power plant area rainwater collecting and processing system, which comprises: the system comprises a conversion well, a collecting tank, a sedimentation tank, a sewage adjusting tank and two recovery self-sucking pumps. The conversion well is fixedly connected with a factory ground rainwater collecting pipeline through a first water inlet; the collecting tank is provided with a second water inlet, a third water inlet, a second water outlet, a third water outlet, a fourth water outlet and a guided wave radar liquid level meter; the collecting tank is connected with the rainwater flood drainage channel through an overflow pipe; the conversion well is fixedly connected with the collecting tank through a first pipeline; the collecting tank is fixedly connected with a factory roof rainwater collecting pipeline through a third water inlet; the second water outlet is connected with the rainwater flood drainage channel through a flood drainage pipe; the third water outlet and the fourth water outlet are respectively connected with two recovery self-priming pumps through recovery pipes; the outlets of the two recovery self-suction pumps are respectively connected with a recovery pipe and then are merged into a recovery header pipe, and the recovery header pipe is respectively connected with a sewage adjusting tank and a sedimentation tank. The utility model effectively ensures the smoothness of a factory drainage system and the cyclic utilization of collected rainwater, saves energy and reduces emission.
Description
Technical Field
The utility model belongs to the field of thermoelectric equipment, and particularly relates to a rainwater collecting and processing system for a thermal power plant area.
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, rainwater (including road surface flushing water and domestic sewage) in the plant is intensively sent into a percolate treatment system for treatment, and pipelines are always obstructed due to silt deposition because the influence of sundries and silt deposition of a rainwater pipe network is not considered, so that a large amount of maintenance cost is generated; in addition, the original system does not consider extreme rainstorm weather drainage, so that the water soaking damage fault of an electric actuating mechanism such as a valve and the like is easily caused, the normal use is influenced, and the property loss is caused; and the rainwater in each area in the plant area can not be recycled to realize energy conservation and emission reduction, so that the construction of a system for meeting the requirements of rainwater flood discharge and collection and reuse in the plant area of the thermal power plant becomes a research direction.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the utility model provides a thermal power plant area rainwater collecting and processing system, which ensures smooth drainage system of the plant area, safe and stable operation of equipment and cyclic reutilization of rainwater by arranging a rainwater collecting pool and a self-sucking pump.
In order to achieve the above object, a rainwater collection and treatment system for a thermal power plant according to an embodiment of the present invention includes: the system comprises a conversion well, a collecting tank, a sedimentation tank, a sewage adjusting tank and two recovery self-sucking pumps.
The conversion well is provided with a first water inlet and a first water outlet, the first water outlet is provided with a discharge valve, and a stainless steel filter screen is arranged at the valve inlet of the discharge valve; a support body is arranged at the bottom of the valve of the discharge valve; the first water inlet is fixedly connected with a plant ground rainwater collecting pipeline; the collecting tank is provided with a second water inlet, a third water inlet, a second water outlet, a third water outlet, a fourth water outlet and a guided wave radar liquid level meter; the collecting tank is also provided with an overflow port, the overflow port is arranged at the middle upper part of the collecting tank, and the overflow port is connected with a rainwater flood drainage channel through an overflow pipe; the first water outlet is fixedly connected with the second water inlet through a first pipeline; the third water inlet is fixedly connected with a factory roof rainwater collecting pipeline; the second water outlet is connected with a rainwater flood drainage channel through a flood drainage pipe, and a rainwater flood drainage main valve is arranged on the flood drainage pipe; the third water outlet is connected with an inlet of a first recovery self-sucking pump through a first recovery pipe; the fourth water outlet is connected with an inlet of a second recovery self-priming pump through a second recovery pipe; the outlet of the first recovery self-priming pump is connected with a third recovery pipe, the outlet of the second recovery self-priming pump is connected with a fourth recovery pipe, the third recovery pipe and the fourth recovery pipe are merged into a recovery header pipe, the recovery header pipe is connected with the first end of a tee pipe fitting, the second end of the tee pipe fitting is connected with a sedimentation tank through a sedimentation tank pipeline, the third end of the tee pipe fitting is connected with a sewage regulating tank through a sewage tank pipeline, and butterfly valves are respectively arranged on the sedimentation tank pipeline and the sewage tank pipeline.
Further, the support body is a cement pier body.
Further, the rainwater flood discharge main valve is an electric butterfly valve.
Furthermore, the guided wave radar liquid level meter is connected to a DCS control system through a signal cable and a power and control cable of an electric valve.
The utility model has the beneficial effects that:
1. the rainwater conversion well is arranged to precipitate and filter rainwater, and the rainwater discharge valve with the filter screen is arranged to primarily purify the rainwater;
2. the guided wave radar installed in the rainwater collection tank disclosed by the utility model is automatically started and stopped according to the liquid level, so that the automatic operation is realized, the remote operation of operators is convenient, the rainwater flood discharge main valve can be opened in heavy rain, the flood discharge capacity is increased, the normal drainage system of a plant area is ensured, the equipment is enabled to safely and stably operate, and the workload is reduced;
3. the two self-priming pumps are arranged beside the rainwater collection tank, and can respectively open the butterfly valves of corresponding pipelines according to the water quality test result, so that rainwater is respectively led to the sedimentation tank and the sewage adjusting tank for reutilization and leakage liquid treatment.
Drawings
FIG. 1 is a schematic view of a thermal power plant area rainwater collection and treatment system of the present invention.
In the figure:
the device comprises a first water inlet 1, a first water outlet 2, a discharge valve 3, a stainless steel filter screen 4, a support body 5, a plant ground rainwater collecting pipeline 6, a second water inlet 7, a third water inlet 8, a second water outlet 9, a third water outlet 10, a fourth water outlet 11, an overflow port 12, an overflow pipe 13, a first pipeline 14, a plant roof rainwater collecting pipeline 15, a rainwater flood discharge main valve 16, a flood discharge pipe 17, a first recovery pipe 18, a second recovery pipe 19, a first recovery self-priming pump 20, a second recovery self-priming pump 21, a third recovery pipe 22, a fourth recovery pipe 23, a recovery main pipe 24, a sedimentation tank pipeline 25, a sewage tank pipeline 26 and a butterfly valve 27.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the following description is further made with reference to fig. 1 and the embodiments.
The thermal power plant area rainwater collecting and processing system of one embodiment of the utility model comprises: the system comprises a conversion well, a collecting tank, a sedimentation tank, a sewage adjusting tank and two recovery self-sucking pumps.
The conversion well is provided with a first water inlet 1 and a first water outlet 2, the first water outlet 2 is provided with a discharge valve 3, and a stainless steel filter screen 4 is arranged at the valve inlet of the discharge valve 3; the bottom of the discharge valve 3 is provided with a support body 5; the factory ground rainwater collecting pipeline 6 is fixedly connected with the first water inlet 1 of the conversion well.
The collecting tank is provided with a second water inlet 7, a third water inlet 8, a second water outlet 9, a third water outlet 10, a fourth water outlet 11 and a guided wave radar liquid level meter; the collecting tank is also provided with an overflow port 12, the overflow port 12 is arranged at the middle upper part of the collecting tank, and the overflow port 12 is connected with a rainwater flood drainage channel through an overflow pipe 13; the first water outlet is fixedly connected with a second water inlet 7 of the collecting tank through a first pipeline 14; the factory roof rainwater collecting pipeline 15 is fixedly connected with a third water inlet 8 of the collecting tank; the second water outlet 9 is provided with a rainwater flood discharge main valve 16, and the second water outlet 9 is connected with a rainwater flood discharge channel through a flood discharge pipe 17; the third water outlet 10 is connected with the inlet of a first recovery self-priming tank pump 20 through a first recovery pipe 18; the fourth water outlet 11 is connected with the inlet of a second recovery self-priming tank pump 21 through a second recovery pipe 19.
The outlet of the first recovery self-priming pump 20 is merged into a recovery header pipe 24 through a third recovery pipe 22, the outlet of the second recovery self-priming pump 21 is merged into the recovery header pipe 24 through a fourth recovery pipe 23, the recovery header pipe 24 is connected with the first end of a tee pipe fitting, the second end of the tee pipe fitting is connected with a sedimentation tank through a sedimentation tank pipeline 25, and the third end of the tee pipe fitting is connected with a sewage adjusting tank through a sewage tank pipeline 26. Butterfly valves 27 are provided on the sedimentation tank pipe 25 and the sewage tank pipe 26, respectively, for opening and closing the pipes.
The size of the conversion well is 4m, 2m, 4.5m, the well wall and the pool bottom are hardened, C30 concrete is poured, the wall thickness is 30cm, the double-layer bidirectional HRB400 phi 14@150 phi 150 is poured, the strength needs to meet the requirement, the conversion well plays a role in sediment precipitation, and a large amount of sediment is prevented from entering the first water outlet. A stainless steel filter screen is additionally arranged at an inlet of a rainwater discharge valve of the conversion well, so that large sundries are prevented from entering the valve and influencing the normal opening and closing of the valve. And an outlet pipeline of the discharge valve is communicated with a corrugated rainwater pipe of DN 400. The cement pier body is built at the bottom of the valve to support, so that the valve is ensured to be stable, and the pipeline is prevented from being deformed and damaged due to the weight of the valve.
A rainwater collecting pool with the length of 4m, the width of 4m and the height of 4.5m is built on the east side of the sedimentation pool, the wall and the bottom of the pool are hardened, C30 concrete is poured, the wall thickness is 30cm, the double-layer bidirectional HRB400 phi 14@150 is adopted, and the strength needs to meet the requirement. The rainwater pipe network south of factory roofing, two way drain pipes in the north are gathered to this pond, and the pond top sets up an overflow discharge port to rainwater flood drainage canal. An electric butterfly valve (D942X-10DN500) and a section of 304 stainless steel pipe are additionally arranged in the rainwater collection tank for discharging flood discharge, and an outlet of the electric butterfly valve is connected to a rainwater drainage ditch. The rainwater collecting tank is provided with the guided wave radar liquid level meter, power and control cables of a signal cable and an electric valve of the rainwater collecting tank are laid and are connected into the DCS control system, so that operating personnel can operate remotely conveniently, the valve can be opened when raining, the flood discharge capacity is increased, the normal drainage system of a plant area is ensured, and equipment can operate safely and stably.
Two self-priming pumps are arranged beside the rainwater collection tank, and an outlet of the pump is connected with a PE pipe DN50 to lead to the sedimentation tank and the sewage adjusting tank respectively. Pumping the rainwater with qualified water quality and recycled to a sedimentation tank, and treating the rainwater by a circulating water treatment system for recycling; if quality of water exceeds standard and can not satisfy the emission requirement, then take out to the sewage equalizing basin, cyclic utilization after leachate treatment system handles, cyclic utilization can reduce the water pollution and practice thrift the water source, and the self priming pump is opened according to the liquid level is automatic through the guided wave radar of rainwater collection inslot installation and is stopped, realizes that automatic operation is convenient for operation personnel distant place operation, reduces work load.
Taking the embodiment of the system in a thermal power plant as an example: when raining, rainwater on the ground of a plant area flows into the rainwater conversion well through the rainwater collection pipeline 6 on the ground of the plant area, daily plant area cleaning water from a garbage truck trestle and a wagon balance, namely flushing water and domestic sewage can be collected in daily life, and because the two paths of water sources are dirty and possibly mixed with silt, the silt is precipitated and filtered in the rainwater conversion well, the silt is precipitated below, and supernatant is discharged into the rainwater collection tank through the rainwater discharge valve 3; and the rainwater on the factory floor is relatively clean, so that the rainwater can be directly discharged into a rainwater collecting tank through a factory floor rainwater collecting pipeline 15. In the conversion well, the rainwater discharge valve is provided with a stainless steel filter screen 4, and the function of the stainless steel filter screen is to prevent large suspended matters, impurities and other sediments from blocking subsequent rainwater pipelines, so that the drainage of the system is not smooth.
Two self-priming pumps are installed beside the rainwater collecting tank, wherein the outlet of the first self-priming pump 20 is merged into a recovery header pipe 24 through a third recovery pipe 22, the outlet of the second self-priming pump 21 is merged into the recovery header pipe 24 through a fourth recovery pipe 23, the recovery header pipe 24 is connected with the first end of the tee pipe fitting, the second end of the tee pipe fitting is connected with the sedimentation tank through a sedimentation tank pipeline 25, and the third end of the tee pipe fitting is connected with a sewage adjusting tank through a sewage tank pipeline 26. Butterfly valves 27 are provided on the sedimentation tank pipe 25 and the sewage tank pipe 26, respectively, for opening and closing the pipes.
Then carry out the chemical examination to the water in the rainwater collecting tank, according to the result of chemical examination, if quality of water is qualified, then open the butterfly valve on the sedimentation tank pipeline 25, make the rainwater of retrieving pass through the sedimentation tank, flow into circulating water treatment system, retrieve and recycle. According to the result of the test, if the water quality is unqualified, a butterfly valve on the pipeline 26 of the sewage adjusting tank is opened, and the recovered rainwater flows into the percolate treatment system through the sewage adjusting tank.
In-service use, if the rainfall is bigger in the twinkling of an eye in factory present, can't guarantee to retrieve through two self priming pumps, consequently set up a flood discharge valve in the rainwater collecting pit, the rainwater drainage canal outside the flood discharge factory guarantees the drainage of other equipment in factory, including the drainage safety and stability on roof. Meanwhile, the guide wave radar liquid level meter is additionally arranged in the self-priming pump, so that automatic control can be realized, and the workload of manual operation is reduced.
In addition, set up the overflow pipe at the well upper portion of rainwater collecting pit, prevent to have unable satisfying the displacement through the flood discharge valve, reach the warning liquid level of rainwater collecting pit, if the rainwater water level continues to rise, will directly discharge the rainwater drainage canal outside the factory through the overflow pipe, guarantee that factory drainage system is normal, make equipment safety and stability move.
After the rainwater collecting and processing system is used, on one hand, the smooth and blockage-free drainage system of a factory can be ensured, and the safe and stable operation of equipment is ensured; on the other hand, rainwater is collected to be recycled in a factory, so that water sources are saved.
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 (4)
1. The utility model provides a processing system is collected to steam power plant factory district rainwater which characterized in that, it includes: the system comprises a conversion well, a collection tank, a sedimentation tank, a sewage adjusting tank and two recovery self-sucking pumps;
the conversion well is provided with a first water inlet and a first water outlet, the first water outlet is provided with a discharge valve, and a stainless steel filter screen is arranged at the valve inlet of the discharge valve; a support body is arranged at the bottom of the valve of the discharge valve; the first water inlet is fixedly connected with a plant ground rainwater collecting pipeline;
the collecting tank is provided with a second water inlet, a third water inlet, a second water outlet, a third water outlet, a fourth water outlet and a guided wave radar liquid level meter; the collecting tank is also provided with an overflow port, the overflow port is arranged at the middle upper part of the collecting tank, and the overflow port is connected with a rainwater flood drainage channel through an overflow pipe; the first water outlet is fixedly connected with the second water inlet through a first pipeline; the third water inlet is fixedly connected with a factory roof rainwater collecting pipeline; the second water outlet is connected with a rainwater flood drainage channel through a flood drainage pipe, and a rainwater flood drainage main valve is arranged on the flood drainage pipe; the third water outlet is connected with an inlet of a first recovery self-sucking pump through a first recovery pipe; the fourth water outlet is connected with an inlet of a second recovery self-priming pump through a second recovery pipe;
the outlet of the first recovery self-priming pump is connected with a third recovery pipe, the outlet of the second recovery self-priming pump is connected with a fourth recovery pipe, the third recovery pipe and the fourth recovery pipe are merged into a recovery header pipe, the recovery header pipe is connected with the first end of a tee pipe fitting, the second end of the tee pipe fitting is connected with a sedimentation tank through a sedimentation tank pipeline, the third end of the tee pipe fitting is connected with a sewage regulating tank through a sewage tank pipeline, and butterfly valves are respectively arranged on the sedimentation tank pipeline and the sewage tank pipeline.
2. The thermal power plant area rainwater collection and treatment system of claim 1 wherein the support body is a cement pier.
3. The thermal power plant area rainwater collection and treatment system of claim 1 wherein said rainwater flood drain header valve is an electric butterfly valve.
4. The thermal power plant area rainwater collection and treatment system of claim 1 wherein the guided wave radar level gauge is connected to the DCS control system through signal cables and power and control cables of electrically operated valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793537.XU CN215483404U (en) | 2021-08-03 | 2021-08-03 | Rainwater collecting and processing system for thermal power plant area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793537.XU CN215483404U (en) | 2021-08-03 | 2021-08-03 | Rainwater collecting and processing system for thermal power plant area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215483404U true CN215483404U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121793537.XU Active CN215483404U (en) | 2021-08-03 | 2021-08-03 | Rainwater collecting and processing system for thermal power plant area |
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| Country | Link |
|---|---|
| CN (1) | CN215483404U (en) |
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2021
- 2021-08-03 CN CN202121793537.XU patent/CN215483404U/en active Active
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