KR200320028Y1 - filter of cooling water for cooling tower - Google Patents

Abstract

The present invention relates to a cooling circulating water filtration container of a cooling tower, and includes a cooling tower, a circulating water inlet connected to a circulating water inlet pipe connected from the cooling tower to receive circulating water, and a lower region at a predetermined interval from the circulating water inlet. In the cylindrical filtration vessel is installed in the having a filtered water discharge pipe connected to the cooling tower side and one end connected to the filtered water inlet through the circulating water inlet in accordance with a signal from the control unit and discharged through the filtered water discharge pipe, It is fixed to the upper region of the filtration vessel and controlled by the controller and pressurized to a predetermined pressure by receiving the cooling circulating water flowing from the cooling tower and then pressurized to the inner wall side of the filtration vessel through the connection pipe and the circulating water inlet. Vortex (vortex) and included in the cooling circulating water Deposited contaminants to the outside of the inner filtration vessel and a pressure pump for the primary filtration; In the filter vessel, the sand, which is a filtration medium, is stacked, and the sand particles are stacked in order of increasing size from the lower surface to the upper side, and the stacked sand particles are stacked at predetermined heights so as to have different heights. And a centrifugal force space provided at a predetermined height between the upper surface of the filtration medium and the inner upper surface of the filtration vessel. As a result, by filtering contaminated particles contained in impurities less than 10 microns, eliminating the cause of corrosion and scale, it can reduce the equipment failure, extend the life of the equipment, greatly reduce the maintenance cost, and prevent corrosion and microbial growth inhibitor It is possible to reduce the amount of input, and thus to increase the efficiency of the drug, it is provided with a cooling circulating filtration vessel of the cooling tower to save energy by increasing the efficiency of the equipment.

Description

Filter of cooling water for cooling tower {filter of cooling water for cooling tower}

The present invention relates to a cooling circulating water filtration vessel of a cooling tower, and more particularly, to reduce efficiency of a facility by filtering fine particles of impurities contained in cooling circulating water (water) of a cooling tower or circulating water of various systems, and piping. It is to provide a cooling circulation filter container of the cooling tower that can prevent corrosion, noise or environmental pollution in advance.

In general, a cooling tower causes the hot water to flow down from the top of the tower into small droplets for use while circulating the cooling water, and vaporizes part of the water by contacting the wind of the blower installed in the tower during the flow. (氣化) serves to lower the water temperature.

Such cooling water is filtered through a filtration vessel before being introduced into the heat exchanger side of the room through a cooling tower as cooling circulation water.

The conventional filtration vessel as described above filters only particles of 10 microns or more included in the cooling water using a sand filter, a screen filter, or a cartridge filter. Among them, the filtration vessel in which the sand filter is accommodated supplies cooling circulating water in the filtration vessel, so when the size of the filtration vessel is the same, the container is made large. There is also the hassle of not being able to. Such a conventional filtration vessel is merely a filtration device for primarily filtering the cooling circulation water and could not be variously applied. In particular, the sand accommodated in the conventional filter container has a problem that the filter container is large to secure a large flow rate because only one type having the same particle size is used, and the amount of backwashing and the backwashing time take a long time. .

In the conventional filtration vessel, if particles of 10 microns or more contained in the cooling circulated water that are not primarily filtered are accumulated on the filtration layer, the filtration vessel cannot play a role of filtration. Therefore, it is not possible to use fine particles of sand, so particles smaller than 10 microns cannot be filtered. As a result, microworms less than 5 microns and particles of various impurities generate a real earthworm, an algae, and they become the main food for bacteria, and the pollution of circulating water caused by the earthworm rapidly spreads. The main sources of these pollutants are airborne dust, corrosive substances, oil debris or other particles from chemical treatment of microorganisms.

These various particles have a disadvantage that the contaminants accumulate rapidly in the parts where the flow rate is lowered, such as elbows, corners inside the cooling / heating coil, or in the condenser evaporator tube and the valve, resulting in a decrease in the efficiency of the system. It is lost, contamination of water by bacteria, corrosion of piping and equipment occurs, and there is a closed end followed by deterioration of the heat exchanger. Therefore, the periodic cleaning of the pipes guiding the cooling tower and the cooling water is urgently needed.

Therefore, the object of the present invention is a relatively simple configuration, by filtering contaminant particles of less than 5 microns, eliminating the cause of corrosion and scale to reduce the equipment failure to extend the life of the equipment can significantly reduce maintenance costs, corrosion It is possible to reduce the dosage of the prevention and microbial growth inhibitors, thereby increasing the efficiency of the drug, and to provide a cooling circulating water filtration vessel of the cooling tower that can save energy by increasing the efficiency of the facility.

1 is a schematic view showing a circulation system of a cooling circulation water according to the present invention,

2 is a cross-sectional view of the filtration vessel according to the present invention.

Explanation of symbols on the main parts of the drawings

1: 1st filtration layer 2: 2nd filtration layer

3: 3rd filtration layer 4: 4th filtration layer

5: 5th filtration layer 6: 6th filtration layer

7: 7th filtration layer 10: Filtration container

11: circulating water inlet 12: filtered water outlet

15: centrifugal force space 20: pressurized pump

30: control unit 40: filtered water discharge pipe

50: circulating water inlet pipe 60: cooling tower

61 pump 62 blower

The object is, according to the present invention, the cooling tower, the circulation water inlet connected to the circulating water inlet pipe connected from the cooling tower and the circulation water inlet is provided in the lower region at a predetermined interval from the circulating water inlet to the cooling tower side A cylindrical filtration vessel having a filtration water discharge pipe connected to one end and a filtration water discharge port connected to one end thereof, and filtering circulating water introduced through the circulating water inlet port according to a signal from the control unit and discharging it through the filtration water discharge pipe, wherein the upper region of the filtration container is provided. Fixed to and controlled by the controller and pressurized to a predetermined pressure by receiving the circulating water introduced from the cooling tower, and then vortexed by vortexing by spraying the inner side of the filtration vessel through a connecting pipe and the circulating water inlet. Contaminants in the water to the outside of the filter vessel Ever it was filtered with a pressure pump to the first; In the filter vessel, the sand, which is a filtration medium, is stacked, and the sand particles are stacked in order of increasing size from the lower surface to the upper side, and the stacked sand particles are stacked at predetermined heights so as to have different heights. And a centrifugal force space provided at a predetermined height between the upper surface of the filtration medium and the inner upper surface of the filtration vessel.

Here, the filtration medium laminated in the filtration vessel may include a seventh filtration layer having sand having a size of 0.125 mm and having a height of 100 mm from a lower surface thereof to an upper side thereof; A sixth filtration layer in which sand having a particle size of 0.175 mm is laminated at a height of 125 mm on the seventh filtration layer; A fifth filtration layer in which sand having a particle size of 0.25 mm is laminated at a height of 330 mm on the sixth filtration layer; A fourth filtration layer in which sand having a particle size of 0.5 mm is laminated at a height of 75 mm on the fifth filtration layer, and a third filtration layer in which sand having a particle size of 1.5 mm is laminated at a height of 25 mm on the fourth filtration layer. and; A second filtration layer in which sand having a particle size of 3 mm is laminated on the third filtration layer at a height of 50 mm; It is preferable that the sand having a particle size of 6 to 7 mm is laminated on the second filtration layer as a first filtration layer laminated at a height of 200 mm.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention. 1 is a schematic view showing a circulation system of a cooling circulation water according to the present invention, Figure 2 is a cross-sectional view of the filtration vessel according to the present invention.

As can be seen in these figures, the filtration vessel 10 according to the present invention is connected to the circulating water inlet pipe 50 connected from the conventional cooling tower 60 and the circulating water inlet 11 to receive the cooling circulating water and And a filtrate discharge outlet 12 and a control unit 30 having one end connected to the filtrate discharge pipe 40 connected to the cooling tower 60 side, and controlled by the control unit 30 to receive cooling circulating water at a predetermined pressure. The pressurized pump 20 pressurized and injected into the filtration vessel 10 through the connecting pipe 31 is installed on the upper surface of the filtration vessel 10.

The cooling circulating water introduced into the pressure pump 20 is pressurized by the pressure pump 20 controlled by the control unit 30 to pressurize and spray the inner wall of the centrifugal force space 15 of the filtration vessel 10. Filtration problem due to the sedimentation of the upper part by continually primary filtration action to strongly contaminate the vortex (vortex) to deposit a relatively large particles of contaminants in the circulating water to the outside of the filter vessel (10) Since the fine sand may be used as the filter medium 80, which will be described below, the circulating water having largely filtered out impurities by the primary filtration is filtered through the filter medium 80.

In the filter medium 80 stacked on the filtration vessel 10, sand or a stack thereof is preferably stacked in the order of the size of the sand particles from the bottom surface to the top thereof, and the heights of the stacked sand particles are different. It is effective to stack at a predetermined height so as to be effective.

That is, in laminating the filter medium 80, a seventh filtration layer 7 having sand having a particle size of 0.125 mm and having a height of 100 mm is provided upward from the lower surface thereof, and the seventh filtration layer 7 is provided. A sixth filtration layer 6 having a sand size of 0.175 mm laminated at a height of 125 mm is laminated thereon, and a fifth filtration layer of sand having a particle size of 0.25 mm at a height of 330 mm stacked on a sixth filtration layer 6. Laminating the filtration layer (5), laminating the fourth filtration layer (4) in which the sand having a particle size of 0.5 mm on the fifth filtration layer (5) was laminated at a height of 75 mm, and on the fourth filtration layer (4). A third filtration layer 3 in which sand having a particle size of 1.5 mm is laminated at a height of 25 mm is laminated.

On the third filtration layer 3, the second filtration layer 2, in which sand having a particle size of 3 mm is laminated at a height of 50 mm, is laminated, and on the second filtration layer 2, the particle size is 6 to 7 mm. The 1st filtration layer 1 which laminated | stacked the sand 200 mm in height is provided. In this way, a centrifugal force space 15 is provided between the upper surface of the first filtration layer 1 and the inner upper surface of the filtration vessel 10.

The filtration vessel 10 according to the present invention configured as described above is installed at one side of the cooling tower 60. The cooling tower 60 includes a pump 61 for pumping cooling circulating water and a cooling water heated in the pump 61 to the upper layer of the cooling tower 60 so as to flow down in the form of droplets from the upper side so as to flow out of the blower 61. It acts to lower the water temperature by vaporizing part of the water by contact with the wind.

One side of the cooling tower 60 is installed with a circulating water inlet pipe 50 on the cooling tower 60 side, and a filtration vessel 10 connected to the filtration water discharge pipe 40 to contaminate small particles of impurities contained in the circulating water. Will be filtered.

The circulating water guided to the circulating water inlet pipe 50 is pressurized to the inner wall of the centrifugal force space 15 of the filtration container 10 by a centrifugal force pressurized to a predetermined pressure by a pressure pump 20 installed above the filtration container 10. Therefore, the circulated water sprayed strongly strikes the inner wall and vortex (vortex) so that the upper part of the circulating water becomes a whirlwind, which continuously accumulates relatively large particles of contaminants contained in the impurities to the inside and outside of the filtration vessel 10. While performing the primary filtration action to retain the foreign matter until the back wash (back wash) and the back of the filtered circulating water is discharged through the filtered water discharge pipe (40).

As such, the circulating water in which the impurities are largely filtered by the primary filtration by the vortex (vortex) is filtered through the filter medium 80, wherein the circulating water is directed upward from the lower surface inside the filter container 10. The larger the size of the sand particles, the greater the size of the sand particles, and the stacked sand particles are passed through the sand layer, which is a filter medium 80 stacked at a predetermined height, and even impurity particles of less than 10 microns contained in the circulation water. Filtration is to discharge the circulated water filtered through the filtered water discharge pipe 40, and finer filtration is possible because the cooling circulating water is washed as the filtration medium 80 having such an ultra-fine sand layer.

As described above, the present invention separates foreign substances of 10 microns or more primarily by centrifugal force using particles of various sands, and foreign substances of less than 10 microns are gradually discharged through particles of stacked sand. Particles up to 5 microns in size can be filtered.

The present invention is not limited to filtering the cooling circulation water (water) of the cooling tower described above, and can also be used to filter and purify various industrial water and domestic water.

As described above, according to the present invention, by filtering contaminant particles of less than 5 microns, eliminating the cause of corrosion and scale to reduce the equipment failure to extend the life of the equipment, significantly reduce the maintenance cost, prevent corrosion and microorganisms It is possible to reduce the amount of development inhibitors, and thus to increase the efficiency of the drug, it is provided a cooling circulating water filtration vessel of the cooling tower that can save energy by increasing the efficiency of the facility.

Claims (2)

Cooling tower, circulating water inlet connected to the circulating water inlet pipe connected from the cooling tower, the circulating water inlet receiving the circulating water, and the filter water discharge pipe connected to the cooling tower side and one end connected to the cooling tower side at a predetermined interval from the circulating water inlet In the cylindrical filtration vessel having a discharge port and filtering the circulating water flowing through the circulating water inlet in accordance with a signal from the control unit to discharge through the filtration water discharge pipe, It is fixed to the upper region of the filtration vessel and controlled by the control unit and is supplied with the circulating water flowing from the cooling tower and pressurized to a predetermined pressure, and then pressurized and sprayed to the inner wall side of the filtration vessel through a connecting pipe and the circulating water inlet. a pressurized pump (vortex: vortex) to deposit and contaminate contaminants contained in the circulating water to the outside of the inside of the filtration vessel; In the filter vessel, the sand, which is a filtration medium, is stacked, and the sand particles are stacked in order of increasing size from the lower surface to the upper surface. The sand particles are stacked at predetermined heights so as to have different heights. And a centrifugal force space provided at a predetermined height between the upper surface of the filter medium and the inner upper surface of the filtration vessel. The method of claim 1, The filtration medium laminated in the filtration vessel may include a seventh filtration layer having sand having a size of 0.125 mm and having a height of 100 mm from a lower surface thereof to an upper side thereof; A sixth filtration layer in which sand having a particle size of 0.175 mm is laminated at a height of 125 mm on the seventh filtration layer; A fifth filtration layer in which sand having a particle size of 0.25 mm is laminated at a height of 330 mm on the sixth filtration layer; A fourth filtration layer in which sand having a particle size of 0.5 mm is laminated at a height of 75 mm on the fifth filtration layer, A third filtration layer in which sand having a particle size of 1.5 mm is laminated on the fourth filtration layer at a height of 25 mm; A second filtration layer in which sand having a particle size of 3 mm is laminated on the third filtration layer at a height of 50 mm; Cooling circulating water filtration vessel of the cooling tower, characterized in that the first filtration layer is laminated to the sand 200 to 200 mm in height with a particle size of 6 ~ 7mm on the second filtration layer.