CN215627167U

CN215627167U - Circulating water treatment system of power plant

Info

Publication number: CN215627167U
Application number: CN202122006744.2U
Authority: CN
Inventors: 张秋振
Original assignee: Tianjin China Boson New Materials Co ltd
Current assignee: Tianjin China Boson New Materials Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-25
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a circulating water treatment system of a power plant, which comprises a treatment tank, wherein a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are sequentially arranged inside the treatment tank from left to right, the first partition plate, the second partition plate, the third partition plate and the fourth partition plate divide the internal space of the treatment tank into a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity from left to right, and a water inlet is formed in the top of the left side wall of the treatment tank. According to the utility model, the circulating water with waste heat is subjected to multiple filtration through the ultrafiltration equipment, the reverse osmosis equipment and the water purifier, and the obtained purified water is used for a production line and a boiler, so that the pollution of directly discharging the circulating water to the environment is avoided, and the waste of heat can be reduced.

Description

Circulating water treatment system of power plant

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a circulating water treatment system of a power plant.

Background

At present, the used demineralized water of production line and boiler in the steam power plant all has the problem on the quality, because the demineralized water quality is not up to standard, causes the condenser on the production line easily to produce the scale deposit, and then influences the life of equipment. In addition, the circulating water used for cooling the equipment in the thermal power plant is usually simply treated and then directly discharged to a sewer, and the circulating water has a certain temperature, so that the direct discharge not only easily pollutes the environment, but also causes waste of heat. Based on the situation, if the circulating water can be recycled, the circulating water is purified, and then the purified water is used for the production line and the boiler, the pollution to the environment can be reduced, and the waste heat in the circulating water can be utilized, so that the waste of heat is reduced. Therefore, a circulating water treatment system of a power plant is provided to well solve the defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circulating water treatment system of a power plant, which is used for solving the problems in the background technology.

The above object of the present invention is achieved by the following technical solutions:

a power plant circulating water treatment system comprises a treatment tank, wherein a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are sequentially arranged inside the treatment tank from left to right, the first partition plate, the second partition plate, the third partition plate and the fourth partition plate divide the internal space of the treatment tank into a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity from left to right, and a water inlet is formed in the top of the left side wall of the treatment tank;

a plurality of coarse strainers are arranged at the middle section in the first cavity, a first pump body is arranged at the bottom of the first cavity, the inside of the second cavity is provided with ultrafiltration equipment, the inside of the third cavity is provided with reverse osmosis equipment, the second pump body and the water purification machine are arranged in the fourth cavity, the water outlet end of the first pump body is connected to the water inlet end of the ultrafiltration device through a pipeline, the water purifying outlet end of the ultrafiltration device is connected to the water inlet end of the reverse osmosis device through a pipeline, the water purifying outlet end of the reverse osmosis device is connected to the water inlet end of the second pump body through a pipeline, the water outlet end of the second pump body is connected with a three-way pipe, two ports of the three-way pipe far away from the second pump body are respectively connected with a first water outlet pipe and a second water outlet pipe, one end of the first water outlet pipe, which is far away from the three-way pipe, is connected to the water inlet end of the water purification machine, and the water outlet end of the water purification machine is connected with a third water outlet pipe;

and a sewage pipe is arranged above the treatment tank, the wastewater outlet end of the ultrafiltration equipment and the wastewater outlet end of the reverse osmosis equipment are communicated with the sewage pipe through pipelines, and the outlet ends of the sewage pipe extend into the fifth cavity.

Preferably, the third cavity is filled with cooling water, a third pump body is arranged at the bottom of the third cavity, a spraying mechanism is arranged at the top of the third cavity and above the reverse osmosis device, the third pump body is soaked in the cooling water, and the water outlet end of the third pump body is connected to the water inlet end of the spraying mechanism through a pipeline.

Preferably, the spraying mechanism is of a disc-shaped hollow structure, the bottom surface of the spraying mechanism is uniformly provided with spraying nozzles, and the top surface of the spraying mechanism is provided with a water inlet end communicated with the third pump body.

Preferably, the filtering mechanism is arranged in the fifth cavity and below the sewage pipe, the fourth pump body is arranged in the fifth cavity and below the filtering mechanism, the water outlet end of the fourth pump body is connected with the return pipe, and one end of the return pipe, which is far away from the fourth pump body, extends into the first cavity and is located above the filter screen.

Preferably, the filtering mechanism comprises a filtering tank, the filtering tank is of a cuboid hollow top end uncovered structure, the inner surface of the filtering tank is attached with a filtering cloth, the bottom surface of the filtering tank is provided with a through hole in a penetrating mode, and a fine sand layer is paved on the filtering cloth.

Compared with the prior art, the utility model provides a circulating water treatment system of a power plant, which has the following beneficial effects:

1. according to the utility model, the circulating water with waste heat is subjected to multiple filtration through the ultrafiltration equipment, the reverse osmosis equipment and the water purifier, and the obtained purified water is used for a production line and a boiler, so that the pollution of directly discharging the circulating water to the environment is avoided, and the waste of heat can be reduced;

2. the spraying mechanism for cooling the reverse osmosis equipment is further arranged, so that damage of the reverse osmosis membrane due to overheating is avoided, and the service life of the reverse osmosis membrane is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged corresponding view taken at A in FIG. 1;

fig. 3 is a schematic view of the spray mechanism of the present invention.

In the figure: 1. a treatment tank; 2. a first separator; 3. a second separator; 4. a third partition plate; 5. a fourth separator; 6. coarse filtration; 7. a first pump body; 8. ultrafiltration equipment; 9. reverse osmosis equipment; 10. a second pump body; 11. a water purification machine; 12. a three-way pipe; 13. a first water outlet pipe; 14. a second water outlet pipe; 15. a third water outlet pipe; 16. a sewage pipe; 17. a third pump body; 18. a spraying mechanism; 19. a filter layer; 20. a fourth pump body; 21. a return pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1, a circulating water treatment system of a power plant comprises a treatment tank 1, wherein a first partition plate 2, a second partition plate 3, a third partition plate 4 and a fourth partition plate 5 are sequentially arranged inside the treatment tank 1 from left to right, the first partition plate 2, the second partition plate 3, the third partition plate 4 and the fourth partition plate 5 sequentially divide the inner space of the treatment tank 1 from left to right into a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity, a water inlet is formed in the top of the left side wall of the treatment tank 1, and circulating water enters the first cavity in the treatment tank 1 from the water inlet.

The middle section in the first cavity is provided with a plurality of coarse strainers 6 for filtering large granular impurities or suspended matters in circulating water, the bottom of the first cavity is provided with a first pump body 7, the inside of the second cavity is provided with an ultrafiltration device 8, the inside of the third cavity is provided with a reverse osmosis device 9, the inside of the fourth cavity is provided with a second pump body 10 and a water purifier 11, wherein the water outlet end of the first pump body 7 is connected to the water inlet end of the ultrafiltration device 8 through a pipeline, the water purification outlet end of the ultrafiltration device 8 is connected to the water inlet end of the reverse osmosis device 9 through a pipeline, the water purification outlet end of the reverse osmosis device 9 is connected to the water inlet end of the second pump body 10 through a pipeline, the water outlet end of the second pump body 10 is connected with a three-way pipe 12, two ports of the three-way pipe 12 far away from the second pump body 10 are respectively connected with a first water outlet pipe 13 and a second water outlet pipe 14, one end of the first water outlet pipe 13 far away from the three-way pipe 12 is connected to the water inlet end of the water purifier 11, the water outlet end of the water purifier 11 is connected with a third water outlet pipe 15, that is, the circulating water in the first cavity sequentially passes through the ultrafiltration device 8 and the reverse osmosis device 9, one part of the purified water passing through the reverse osmosis device 9 is discharged from the second water outlet pipe 14 for water used in the production line, and the other part of the purified water passing through the water purifier 11 is discharged from the third water outlet pipe 15 for water used in the boiler.

Referring to fig. 1 and 2, a sewage pipe 16 is arranged above the treatment tank 1, a wastewater outlet end of the ultrafiltration device 8 and a wastewater outlet end of the reverse osmosis device 9 are both communicated with the sewage pipe 16 through pipelines, an outlet end of the sewage pipe 16 extends into a fifth cavity, that is, wastewater obtained by filtering through the ultrafiltration device 8 and the reverse osmosis device 9 is discharged into the fifth cavity, a filtering mechanism 19 is arranged in the fifth cavity and below the sewage pipe 16, a fourth pump body 20 is arranged in the fifth cavity and below the filtering mechanism 19, a water outlet end of the fourth pump body 20 is connected with a return pipe 21, and one end of the return pipe 21, which is far away from the fourth pump body 20, extends into the first cavity and is located above the filter screen 6; filtering mechanism 19 includes filtering ponds 1901, filtering ponds 1901 is cuboid cavity top uncovered structure, filtering ponds 1901's internal surface laminating filter cloth 1902, filter cloth 1902 adopts the cotton material, filtering ponds 1901's bottom surface is run through and has been seted up through-hole 1903, filter cloth 1902 upper berth is equipped with fine sand layer 1904, wherein, filtering ponds 19 spiro union is fixed in the fifth cavity, enter into the waste water in the fifth cavity promptly and pass through the filtration back of fine sand layer 1904 and filter cloth 1902, get back to again in the first cavity, the purpose of water economy resource has further been played.

Referring to fig. 1 and 3, the third cavity contains cooling water, a third pump body 17 is disposed at the bottom of the third cavity, a spraying mechanism 18 is disposed at the top of the third cavity and above the reverse osmosis device 9, the third pump body 17 is immersed in the cooling water, and a water outlet end of the third pump body 17 is connected to a water inlet end of the spraying mechanism 18 through a pipeline; the spraying mechanism 18 is of a disc-shaped hollow structure, the bottom surface of the spraying mechanism 18 is uniformly provided with spraying nozzles, the top surface of the spraying mechanism 18 is provided with a water inlet end communicated with the third pump body 17, namely the third pump body 17 pumps cooling water into the spraying mechanism 18, and finally the spraying nozzles at the bottom of the spraying mechanism 18 spray the cooling water onto the reverse osmosis equipment 9 to prevent the reverse osmosis equipment from being overheated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a power plant's circulating water treatment system, includes treatment tank (1), its characterized in that: a first partition plate (2), a second partition plate (3), a third partition plate (4) and a fourth partition plate (5) are sequentially arranged inside the treatment tank (1) from left to right, the first partition plate (2), the second partition plate (3), the third partition plate (4) and the fourth partition plate (5) sequentially divide the internal space of the treatment tank (1) into a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity from left to right, and a water inlet is formed in the top of the left side wall of the treatment tank (1);

the water purifier is characterized in that a plurality of coarse filtration screens (6) are arranged in the middle section of the first cavity, a first pump body (7) is arranged at the bottom of the first cavity, an ultrafiltration device (8) is arranged in the second cavity, a reverse osmosis device (9) is arranged in the third cavity, a second pump body (10) and a water purifier (11) are arranged in the fourth cavity, the water outlet end of the first pump body (7) is connected to the water inlet end of the ultrafiltration device (8) through a pipeline, the water purification outlet end of the ultrafiltration device (8) is connected to the water inlet end of the reverse osmosis device (9) through a pipeline, the water purification outlet end of the reverse osmosis device (9) is connected to the water inlet end of the second pump body (10) through a pipeline, the water outlet end of the second pump body (10) is connected with a three-way pipe (12), and two ports of the three-way pipe (12), which are far away from the second pump body (10), are respectively connected with a first water outlet pipe (13) and a second water outlet pipe (14), one end of the first water outlet pipe (13) far away from the three-way pipe (12) is connected to the water inlet end of the water purification machine (11), and the water outlet end of the water purification machine (11) is connected with a third water outlet pipe (15);

a sewage pipe (16) is arranged above the treatment tank (1), the wastewater outlet end of the ultrafiltration device (8) and the wastewater outlet end of the reverse osmosis device (9) are communicated with the sewage pipe (16) through pipelines, and the outlet end of the sewage pipe (16) extends into the fifth cavity.

2. The power plant circulating water treatment system of claim 1, wherein: the third cavity is filled with cooling water, a third pump body (17) is arranged at the bottom of the third cavity, a spraying mechanism (18) is arranged at the top of the third cavity and above the reverse osmosis equipment (9), the third pump body (17) is soaked in the cooling water, and the water outlet end of the third pump body (17) is connected to the water inlet end of the spraying mechanism (18) through a pipeline.

3. The power plant circulating water treatment system of claim 2, wherein: the spraying mechanism (18) is of a disc-shaped hollow structure, the bottom surface of the spraying mechanism (18) is uniformly provided with spraying nozzles, and the top surface of the spraying mechanism (18) is provided with a water inlet end communicated with the third pump body (17).

4. The power plant circulating water treatment system of claim 1, wherein: the below that just is located sewage pipe (16) in the fifth cavity is equipped with filtering mechanism (19), the below that just is located filtering mechanism (19) in the fifth cavity is equipped with the fourth pump body (20), the play water end of the fourth pump body (20) is connected with back flow (21), the one end that the fourth pump body (20) was kept away from in back flow (21) extends to the top that is located coarse strainer (6) in the first cavity.

5. The power plant circulating water treatment system of claim 4, wherein: filtering mechanism (19) include filtering ponds (1901), filtering ponds (1901) are cuboid cavity top uncovered structure, and filtering ponds's (1901) internal surface laminating filter cloth (1902), the bottom surface of filtering ponds (1901) runs through and has seted up through-hole (1903), filter cloth (1902) upper berth is equipped with fine sand layer (1904).