CN214389023U

CN214389023U - Filter system for forced backwashing water of reservoir

Info

Publication number: CN214389023U
Application number: CN202120107389.5U
Authority: CN
Inventors: 田海丰; 苗劲松; 匡海成; 王小军; 张�杰; 马希得
Original assignee: Tangshan Zhengfeng Iron&steel Co ltd
Current assignee: Tangshan Zhengfeng Iron&steel Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-10-15
Anticipated expiration: 2031-01-15

Abstract

The utility model relates to a backwash water filtration system is forced to cistern belongs to the cistern energy-conservation and water purification technical field. The technical scheme is as follows: one end of a backwashing water outlet pipeline (1) is connected with the bottom of a reservoir (17), the other end of the backwashing water outlet pipeline (1) is connected with an inlet of a shallow sand filter (12), a valve I (3), a water pump (2), a valve II (5), a pressure gauge (6), a check valve (7) and a three-phase valve (11) are sequentially arranged on the backwashing water outlet pipeline (1) according to the direction of water flow, the three-phase valve (11) is connected with a drainage pipeline through a valve V (10), an outlet of the shallow sand filter (12) is connected with the upper part of the reservoir (17) through a backwashing water return pipeline (14), and a valve VI (13) is arranged on the backwashing water return pipeline (14). The utility model has the advantages that: the filter effect is good, can filter the debris in the cistern totally.

Description

Filter system for forced backwashing water of reservoir

Technical Field

The utility model relates to a backwash water filtration system is forced to cistern belongs to the cistern energy-conservation and water purification technical field.

Background

At present, shallow sand filter in the market mainly adopts system pressure return water as filtering water source, and the problem that this kind of technique exists is: the shallow sand filter needs higher system return water pressure when carrying out the backwash, just can filter the debris of sediment in the cistern clean, if control reduction circulating water flow in order to improve system return water pressure, will influence the cooling effect of whole equipment, has improved the energy consumption of equipment. Meanwhile, the system pressure backwater is adopted as a filtering water source, so that impurities precipitated in the water storage tank can be attached to a cooler of the intermediate equipment and block a filtering system of the equipment, the filtering effect of the filtering mode is poor, and the impurities in the water storage tank cannot be filtered completely.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a backwash water filtration system is forced to cistern, the filter effect is good, can be with the debris sanitization in the cistern, solve the problem that exists among the background art.

The technical scheme of the utility model is that:

a forced backwashing water filtering system of a reservoir comprises the reservoir, a system water supply unit and a backwashing filtering unit, wherein the backwashing filtering unit comprises a backwashing water outlet pipeline, a water pump, a first valve, a second valve, a pressure gauge, a check valve, a fifth valve, a third valve, a shallow sand filter, a sixth valve and a backwashing water return pipeline, one end of the backwashing water outlet pipeline is connected with the bottom of the reservoir, the other end of the backwashing water outlet pipeline is connected with an inlet of the shallow sand filter, the backwashing water outlet pipeline is sequentially provided with the first valve, the water pump, the second valve, the pressure gauge, the check valve and the third valve according to the direction of water flow, the third valve is connected with a drainage pipeline through the fifth valve, an outlet of the shallow sand filter is connected with the upper part of the reservoir through the backwashing water return pipeline, and the backwashing water return pipeline is provided with the sixth valve;

the system water supply unit comprises a third valve, a fourth valve, a system water supply pipeline, a main water pump and a system water return pipeline, one end of the system water supply pipeline is connected with the bottom of the water storage tank, the other end of the system water supply pipeline is used by a user through the main water pump, the system water return pipeline is divided into two paths, one path is connected with the top of the water storage tank through the third valve, and the other path is connected with an inlet of the shallow sand filter through the fourth valve.

And a connecting flange is arranged on a back washing water outlet pipeline between a first valve in the back washing filtering unit and the water pump.

The shallow sand filter is a filtering device well known in the art and can be directly purchased from the market.

The utility model has the advantages that: the system pressure backwater filtration and backwashing in the background technology are changed, the centrifugal water pump is used for pumping water from the bottom of the reservoir for forced filtration and backwashing, the water quality in the reservoir is purified more thoroughly by the filtration mode, the backwater pressure is reduced, the cooling water flow is improved, and the cooling effect of the equipment is better.

Drawings

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

in the figure: the system comprises a backwashing water outlet pipeline 1, a water pump 2, a first valve 3, a connecting flange 4, a second valve 5, a pressure gauge 6, a check valve 7, a third valve 8, a fourth valve 9, a fifth valve 10, a three-phase valve 11, a shallow sand filter 12, a sixth valve 13, a backwashing water return pipeline 14, a system water supply pipeline 15, a main water pump 16, a reservoir 17 and a system water return pipeline 18.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to the attached figure 1, the forced backwashing water filtering system for the water storage tank comprises a water storage tank 17, a system water supply unit and a backwashing filtering unit, wherein the backwashing filtering unit comprises a backwashing water outlet pipeline 1, a water pump 2, a first valve 3, a second valve 5, a pressure gauge 6, a check valve 7, a fifth valve 10, a three-phase valve 11, a shallow sand filter 12, a sixth valve 13 and a backwashing water return pipeline 14, one end of the backwashing water outlet pipeline 1 is connected with the bottom of the water storage tank 17, the other end of the backwashing water outlet pipeline 1 is connected with an inlet of the shallow sand filter 12, the first valve 3, the water pump 2, the second valve 5, the pressure gauge 6, the check valve 7 and the three-phase valve 11 are sequentially arranged on the backwashing water outlet pipeline 1 according to the water flow direction, the three-phase valve 11 is connected with a drainage pipeline through the fifth valve 10, an outlet of the shallow sand filter 12 is connected with the upper part of the water storage tank 17 through the backwashing water return pipeline 14, a sixth valve 13 is arranged on the back washing water return pipeline 14;

the system water supply unit comprises a third valve 8, a fourth valve 9, a system water supply pipeline 15, a main water pump 16 and a system water return pipeline 18, one end of the system water supply pipeline 15 is connected with the bottom of the water storage tank 17, the other end of the system water supply pipeline 15 is used by a user through the main water pump 16, the system water return pipeline 18 is divided into two paths, one path is connected with the top of the water storage tank 17 through the third valve 8, and the other path is connected with the inlet of the shallow sand filter 12 through the fourth valve 9.

In this example, referring to FIG. 1, the system water supply line 15 is used for intermediate equipment cooling by a main water pump 16.

The bottom of the reservoir 17 is connected with a backwashing water outlet pipeline 1, a first valve 3 is welded behind the backwashing water outlet pipeline 1, a connecting flange 4 is welded, the connecting flange 4 is connected with a water pump 2, a pressure gauge 6 is installed behind the water pump 2, a second valve 5 is welded at the outlet of the water pump 2, and a check valve 7 is welded behind the pressure gauge 6. A back-flushing water outlet pipeline behind the check valve 7 is connected with a valve IV 9, the water pump 2 pumps sewage at the bottom of the reservoir 17 through the back-flushing water outlet pipeline 1, the sewage is pressurized and then sent to the shallow sand filter 12 for back flushing and filtering, the shallow sand filter 12 is connected in parallel, and filtered clean water returns to the reservoir 17 through a valve VI 13. And closing a valve IV 9 after implementation, and pumping water from the bottom of the reservoir to perform filtering and backwashing. And the third valve 8 is fully opened, so that the backwater pressure is reduced, the cooling water flow is increased, forced filtration is more thorough, and the energy consumption of equipment is reduced.

The utility model has the advantages of, through cistern bottom extraction sewage, the filter effect improves greatly, no longer relies on return water pressure to carry out the backwash, has reduced return water pressure, and the circulating water flow who supplies the intermediate equipment can promote. According to statistics, the turbidity of the filtered water is reduced to 0.2NTU from 3.0NTU, the circulating water flow is increased to 4000m for high speed cultivation from 3500 m/h, the efficiency of the cooler of the intermediate equipment is improved by 0.05%, and the energy consumption of the compressor is reduced by 0.09%.

Claims

1. The utility model provides a backwash water filtration system is forced to cistern which characterized in that: contain cistern (17), system water supply unit and back flush filter unit, back flush filter unit contains back flush outlet conduit (1), water pump (2), valve (3), valve two (5), manometer (6), check valve (7), valve five (10), three-phase valve (11), shallow sand filter (12), valve six (13) and back flush return water pipe (14), the one end of back flush outlet conduit (1) is connected with cistern (17) bottom, the other end of back flush outlet conduit (1) is connected with the entry of shallow sand filter (12), back flush outlet conduit (1) is gone up and is set gradually valve one (3), water pump (2), valve two (5), manometer (6), check valve (7) and three-phase valve (11) according to the direction of rivers, three-phase valve (11) are connected with drainage pipe through valve five (10), an outlet of the shallow sand filter (12) is connected with the upper part of a reservoir (17) through a back washing water return pipe (14), and a valve six (13) is arranged on the back washing water return pipe (14);

the system water supply unit comprises a third valve (8), a fourth valve (9), a system water supply pipeline (15), a total water pump (16) and a system water return pipeline (18), one end of the system water supply pipeline (15) is connected with the bottom of the water storage tank (17), the other end of the system water supply pipeline (15) is used by a user through the total water pump (16), the system water return pipeline (18) is divided into two paths, one path is connected with the top of the water storage tank (17) through the third valve (8), and the other path is connected with an inlet of the shallow sand filter (12) through the fourth valve (9).

2. The reservoir forced backwash water filtration system as defined in claim 1 wherein: and a connecting flange (4) is arranged on a backwashing water outlet pipeline (1) between a first valve (3) and the water pump (2) in the backwashing filter unit.