CN214060174U - Outward steam supply backwater treatment system for power plant - Google Patents

Outward steam supply backwater treatment system for power plant Download PDF

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Publication number
CN214060174U
CN214060174U CN202022854629.6U CN202022854629U CN214060174U CN 214060174 U CN214060174 U CN 214060174U CN 202022854629 U CN202022854629 U CN 202022854629U CN 214060174 U CN214060174 U CN 214060174U
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China
Prior art keywords
pipeline
water
return
plate heat
return water
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CN202022854629.6U
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Chinese (zh)
Inventor
黄向荣
凌保辉
黄健新
张有世
吴丽琴
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Xinhui Shuangshui Power Generation B Plant Co ltd
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Xinhui Shuangshui Power Generation B Plant Co ltd
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Abstract

The utility model discloses an outside vapour return water processing system that supplies of power plant relates to the power plant and supplies vapour return water processing technology field. The utility model discloses a plate heat exchanger, return water filter equipment, reverse osmosis water tank, elevator pump, mixed bed, demineralized water tank and wet return, the terminal of wet return and plate heat exchanger's import fixed connection, the import fixed connection of pipeline and return water filter equipment is passed through in plate heat exchanger's export, and the import fixed connection of pipeline and reverse osmosis water tank is passed through in return water filter equipment's export. The utility model discloses through plate heat exchanger, return water filter equipment, reverse osmosis water tank, mix the bed and remove the brine tank integrated treatment back, the quality of water that supplies the vapour return water obviously becomes good, and the suspended solid obviously becomes fewly, and it is unsatisfactory to have solved the outside vapour return water treatment system that supplies of current power plant treatment effect, and the return water after handling is difficult to direct utilization, is difficult to adapt to the problem that the industry was extensive to supply the vapour return water to handle the utilization.

Description

Outward steam supply backwater treatment system for power plant
Technical Field
The utility model belongs to the technical field of the power plant supplies vapour return water treatment, especially relate to the outside vapour return water treatment system that supplies of power plant.
Background
The power plant can produce a large amount of steam supply backwaters when outwards supplying steam, supplies to have a large amount of heats in the steam return, and quality of water is relatively poor, needs special equipment to handle it, and the treatment process is to supplying steam backwater among the prior art: plate heat exchanger and desalting water tank.
However, the existing steam supply and return water treatment system has the following defects in use:
1. the existing steam supply backwater treatment system has unsatisfactory treatment effect, the treated backwater is difficult to be directly utilized, a large amount of suspended matters exist, and the backwater of the unit is occasionally deteriorated by unknown reasons;
2. the existing steam supply backwater treatment system is difficult to adapt to industrial large-scale treatment and utilization of steam supply backwater, and the treatment efficiency is low.
There is therefore a need for improvements in the prior art to address the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide the outside vapour return water processing system that supplies of power plant, through plate heat exchanger, return water filter equipment, reverse osmosis water tank, mix the bed and remove the salt water tank integrated treatment back, the quality of water that supplies the vapour return water obviously becomes good, and the suspended solid obviously becomes fewly, and it is unsatisfactory to have solved the outside vapour return water processing system treatment effect that supplies of current power plant, and the return water after the processing is difficult to direct utilization, is difficult to adapt to the problem that the industry was handled the utilization to supplying the vapour return water on a large scale.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to an outside steam supply return water processing system of power plant, including plate heat exchanger, return water filter equipment, reverse osmosis water tank, elevator pump, muddy bed, demineralized water tank and wet return, the end of wet return and plate heat exchanger's import fixed connection, plate heat exchanger's export is through the import fixed connection of pipeline with return water filter equipment, and be provided with the return valve on plate heat exchanger's the export pipeline, return water filter equipment's export is through the import fixed connection of pipeline with reverse osmosis water tank, reverse osmosis water tank's export is through the import fixed connection of pipeline with the muddy bed, the export of muddy bed is through the import fixed connection of pipeline with demineralized water tank;
the backwater filtering device comprises a main pipeline, a water quality monitoring sensor, a first main valve, a branch pipeline, a fine filter, a branch valve and a second main valve, wherein the water quality monitoring sensor and the first main valve are respectively arranged at the front end of the main pipeline, the water quality monitoring sensor is arranged at the front end of the first main valve, the second main valve is arranged at the rear end of the main pipeline, the branch pipeline is arranged between the first main valve and the second main valve, the fine filter is arranged on the branch pipeline, and the branch valves are arranged at the front end and the rear end of the fine filter;
return water filter equipment still includes bypass pipeline and bypass valve, be provided with bypass valve on the bypass pipeline, bypass pipeline and bypass valve's setting make this system can be according to the quality of water condition reasonable selection that supplies vapour return water whether need use smart filter, avoid frequently using smart filter, cause smart filter life step-down.
Furthermore, the plate heat exchanger is provided with a plurality of outlets which are fixedly connected with an inlet of the backwater filtering device through pipelines, and the plate heat exchanger regenerates the steam supply backwater of different devices respectively, so that the heat regeneration efficiency and the heat regeneration effect are improved.
Furthermore, the front end of the main pipeline is fixedly connected with an outlet pipeline of the plate heat exchanger, and the rear end of the main pipeline is fixedly connected with an inlet pipeline of the reverse osmosis water tank.
Furthermore, the branch pipeline is provided with a plurality of branch pipelines which are connected in parallel and arranged on the main pipeline, and the arrangement of the plurality of branch pipelines enables the system to open the fine filters with proper quantity to filter the water body according to the water quantity of the steam supply return water, so that the filtering efficiency is improved.
Furthermore, the front end of the bypass pipeline is communicated with a pipeline between the water quality monitoring sensor and the first main valve, and the rear end of the bypass pipeline is communicated with a pipeline behind the second main valve.
Furthermore, a lifting pump is arranged on a pipeline between the reverse osmosis water tank and the mixed bed, and the water body treated by the reverse osmosis water tank is lifted into the mixed bed through the lifting pump.
The utility model discloses following beneficial effect has:
1. the utility model discloses a set up plate heat exchanger, return water filter equipment, reverse osmosis water tank, the elevator pump, mix bed and demineralized water tank, compare in prior art's plate heat exchanger and demineralized water tank cooperation processing, make the treatment effect to supplying the vapour return water better, through plate heat exchanger, return water filter equipment, reverse osmosis water tank, mix bed and demineralized water tank comprehensive treatment after, the quality of water of supplying the vapour return water obviously becomes better, the suspended solid obviously diminishes, through the trial run, the quality of water of increase return water filter equipment back return water obviously becomes better, especially the suspended solid index, it leaves not few precipitate at the bottom of the case when increasing the inspection demineralized water tank before the return water filter equipment, the deterioration of unclear reason appears occasionally in the steam of unit, nevertheless behind the increase return water filter equipment, the condition that quality of water worsened has not appeared in the unit, also examine hardly the precipitate bottom the demineralized water tank.
2. The utility model discloses a set up a plurality of parallelly connected branch pipelines and the smart filter that sets up for this system can be according to the water yield that supplies vapour return water, and the smart filter of opening suitable quantity filters the water, improves filtration efficiency.
3. The utility model discloses a set up bypass pipeline and bypass valve for whether this system can be according to the quality of water condition rational selection that supplies vapour return water and need use smart filter, avoids frequently using smart filter, causes smart filter life step-down.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the process flow of the present invention;
FIG. 2 is a schematic structural view of the backwater filtering device of the present invention;
FIG. 3 is a schematic process flow diagram of the prior art.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a plate heat exchanger; 2. a backwater filtering device; 3. a reverse osmosis water tank; 4. a lift pump; 5. mixing the bed; 6. a demineralized water tank; 7. a water return pipe; 101. a water return valve; 201. a main pipeline; 202. a water quality monitoring sensor; 203. a first main valve; 204. branch pipelines; 205. a fine filter; 206. a branch valve; 207. a bypass conduit; 208. a bypass valve; 209. a second main valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model relates to an outward steam supply return water treatment system for power plant, which comprises a plate heat exchanger 1, a return water filtering device 2, a reverse osmosis water tank 3, a lift pump 4, a mixed bed 5, a demineralized water tank 6 and a return water pipe 7, wherein the end of the return water pipe 7 is fixedly connected with the inlet of the plate heat exchanger 1, the outlet of the plate heat exchanger 1 is fixedly connected with the inlet of the return water filtering device 2 through a pipeline, a return water valve 101 is arranged on the outlet pipeline of the plate heat exchanger 1, a plurality of plate heat exchangers 1 are arranged, the outlets of the plate heat exchangers 1 are fixedly connected with the inlet of the return water filtering device 2 through a pipeline, the outlet of the return water filtering device 2 is fixedly connected with the inlet of the reverse osmosis water tank 3 through a pipeline, the outlet of the reverse osmosis water tank 3 is fixedly connected with the inlet of the mixed bed 5 through a pipeline, the lift pump 4 is arranged on the pipeline between the reverse osmosis water tank 3 and the mixed bed 5, the outlet of the mixing bed 5 is fixedly connected with the inlet of the demineralized water tank 6 through a pipeline.
As shown in fig. 2, the backwater filtering device 2 includes a main pipe 201, a water quality monitoring sensor 202, a first main valve 203, a branch pipe 204, a fine filter 205, a branch valve 206 and a second main valve 209, the front end of the main pipe 201 is fixedly connected with an outlet pipe of the plate heat exchanger 1, the rear end of the main pipe 201 is fixedly connected with an inlet pipe of the reverse osmosis water tank 3, the front end of the main pipe 201 is provided with the water quality monitoring sensor 202 and the first main valve 203 respectively, the water quality monitoring sensor 202 is arranged at the front end of the first main valve 203, the rear end of the main pipe 201 is provided with the second main valve 209, the branch pipe 204 is arranged between the first main valve 203 and the second main valve 209, the branch pipe 204 is provided with the fine filter 205, the branch valves 206 are arranged at the front and rear ends of the fine filter 205, the branch pipes 204 are provided with a plurality of branch pipes 204, the plurality of branch pipes 204 are arranged in parallel on the main pipe 201, during the use, through the quality of water condition of water monitoring sensor 202 monitoring steam supply return water, if the quality of water condition is relatively poor, open first main valve 203 and second main valve 209, close bypass valve 208, supply steam return water to carry out the fine filtration through smart filter 205.
As shown in fig. 2, the backwater filtering device 2 further includes a bypass pipeline 207 and a bypass valve 208, the front end of the bypass pipeline 207 is communicated with a pipeline between the water quality monitoring sensor 202 and the first main valve 203, the rear end of the bypass pipeline 207 is communicated with a pipeline behind the second main valve 209, the bypass pipeline 207 is provided with the bypass valve 208, when in use, the water quality condition of the steam supply backwater is monitored by the water quality monitoring sensor 202, if the water quality condition is better, the first main valve 203 and the second main valve 209 are closed, the bypass valve 208 is opened, and the steam supply backwater directly enters the reverse osmosis water tank 3 through the bypass pipeline 207.
Wherein as shown in fig. 3, for current power plant outside steam supply return water processing system, including plate heat exchanger 1, demineralized water tank 6 and wet return 7, the import fixed connection of terminal and plate heat exchanger 1 of wet return 7, the import fixed connection of outlet through pipeline and demineralized water tank 6 of plate heat exchanger 1, handle the steam supply return water through the cooperation of plate heat exchanger 1 and demineralized water tank 6.
When the device is used, steam supply backwater to be treated flows into the respective plate heat exchangers 1 through the plurality of backwater pipes 7 respectively, after the heat recovery of the plate heat exchangers 1, the steam supply backwater flows into the backwater filtering device 2 again, is filtered by the backwater filtering device 2 and then flows into the reverse osmosis water tank 3, after reverse osmosis separation and purification of the reverse osmosis water tank 3, the steam supply backwater is pumped into the mixing bed 5 through the lifting pump 4, and after the treatment of the mixing bed 5, the steam supply backwater flows into the desalting water tank 6 for further desalting treatment.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.

Claims (6)

1. The outside vapour return water processing system that supplies of power plant includes plate heat exchanger (1), return water filter equipment (2), reverse osmosis water tank (3), elevator pump (4), mixes bed (5), demineralized water tank (6) and wet return (7), its characterized in that: the tail end of the water return pipe (7) is fixedly connected with an inlet of the plate heat exchanger (1), an outlet of the plate heat exchanger (1) is fixedly connected with an inlet of the water return filtering device (2) through a pipeline, a water return valve (101) is arranged on an outlet pipeline of the plate heat exchanger (1), an outlet of the water return filtering device (2) is fixedly connected with an inlet of the reverse osmosis water tank (3) through a pipeline, an outlet of the reverse osmosis water tank (3) is fixedly connected with an inlet of the mixed bed (5) through a pipeline, and an outlet of the mixed bed (5) is fixedly connected with an inlet of the desalted water tank (6) through a pipeline;
the backwater filtering device (2) comprises a main pipeline (201), a water quality monitoring sensor (202), a first main valve (203), a branch pipeline (204), a fine filter (205), a branch valve (206) and a second main valve (209), wherein the front end of the main pipeline (201) is respectively provided with the water quality monitoring sensor (202) and the first main valve (203), the water quality monitoring sensor (202) is arranged at the front end of the first main valve (203), the rear end of the main pipeline (201) is provided with the second main valve (209), the branch pipeline (204) is arranged between the first main valve (203) and the second main valve (209), the branch pipeline (204) is provided with the fine filter (205), and the front end and the rear end of the fine filter (205) are respectively provided with the branch valve (206);
the backwater filtering device (2) further comprises a bypass pipeline (207) and a bypass valve (208), and the bypass pipeline (207) is provided with the bypass valve (208).
2. The system for treating the outward steam supply and return water of the power plant as claimed in claim 1, wherein a plurality of plate heat exchangers (1) are provided, and outlets of the plurality of plate heat exchangers (1) are fixedly connected with inlets of the return water filtering devices (2) through pipelines.
3. The system for treating the outward steam supply and return water of the power plant as claimed in claim 1, wherein the front end of the main pipeline (201) is fixedly connected with an outlet pipeline of the plate heat exchanger (1), and the rear end of the main pipeline (201) is fixedly connected with an inlet pipeline of the reverse osmosis water tank (3).
4. The system for treating the outward steam supply and return water of the power plant as claimed in claim 1, wherein a plurality of branch pipes (204) are arranged, and a plurality of branch pipes (204) are arranged on the main pipe (201) in parallel.
5. The power plant outward steam supply and return water treatment system according to claim 1, wherein the front end of the bypass pipeline (207) is communicated with a pipeline between the water quality monitoring sensor (202) and the first main valve (203), and the rear end of the bypass pipeline (207) is communicated with a pipeline behind the second main valve (209).
6. The system for treating the outward steam supply and return water of the power plant as claimed in claim 1, characterized in that a lifting pump (4) is arranged on a pipeline between the reverse osmosis water tank (3) and the mixed bed (5).
CN202022854629.6U 2020-12-01 2020-12-01 Outward steam supply backwater treatment system for power plant Active CN214060174U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022854629.6U CN214060174U (en) 2020-12-01 2020-12-01 Outward steam supply backwater treatment system for power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022854629.6U CN214060174U (en) 2020-12-01 2020-12-01 Outward steam supply backwater treatment system for power plant

Publications (1)

Publication Number Publication Date
CN214060174U true CN214060174U (en) 2021-08-27

Family

ID=77405376

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022854629.6U Active CN214060174U (en) 2020-12-01 2020-12-01 Outward steam supply backwater treatment system for power plant

Country Status (1)

Country Link
CN (1) CN214060174U (en)

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