Filtering device for circulating cooling water

Abstract

The utility model relates to the technical field of filtering devices, and particularly discloses a filtering device for circulating cooling water, the filtering device is arranged between a cooling pool and a water suction pool, a plurality of groups of filtering devices are arranged, and each group of filtering device comprises a liquid inlet pipeline, a filtering pipeline, a filtering material feeding pipeline and material conveying equipment, one end of the liquid inlet pipeline penetrates into the cooling pond, the other end of the liquid inlet pipeline extends out of the cooling pond to be connected with the filtering pipeline, the filtering pipeline is communicated with the water suction pond through the drainage pipeline, a first flashboard is inserted into the filtering pipeline and located below a water inlet of the drainage pipeline, and a filter screen is arranged at the water inlet of the drainage pipeline. The filter material feeding pipeline is arranged at the upper part of the filter pipeline and is communicated with the filter pipeline; and a filter material is placed in the filter material feeding pipeline. According to the filtering device, impurities in the circulating cooling water are filtered in a triple filtering mode, so that the conveying stability of the circulating cooling water in the cooling pond is improved, and meanwhile, a filtering material can be periodically replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering devices, in particular to a filtering device for circulating cooling water. Background Art

[0002] When filtering the circulating cooling water in the cooling pool, the existing filtering device cannot quickly, simply and comprehensively filter the large-particle floating impurities such as leaves, waste plastic pieces, straw and the harmful impurities that are not easy to capture in the water, such as plankton and slime, in the circulating cooling water. It completely relies on increasing the mesh density of the filter to filter the impurities, which can easily cause the impurities to accumulate too quickly and block the filter and the filter pipe outlet too much, causing the water flow to change frequently and seriously affecting the normal water intake of the water absorption pool. As a result, the filter needs to be frequently cleaned or replaced, which seriously increases the labor intensity of the personnel, affects the running efficiency of the circulating water, and also wastes the filtering cost. Therefore, it is urgently needed to design a circulating cooling water filtering device to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a filtering device for circulating cooling water, which solves the above-mentioned filtering problems of large-size floating impurities and difficult-to-intercept plankton and slime that are difficult to capture efficiently at the same time, as well as the problem of incomplete filtration requiring frequent cleaning or replacement of the filter screen, which wastes filtration costs.

[0004] In order to solve the above technical problems, the utility model provides a filtering device for circulating cooling water, wherein the filtering device is arranged between a cooling pool and a water absorption pool, the filtering device has several groups, and each group of the filtering devices includes a liquid inlet pipe, a filtering pipe and a filter material feed pipe, one end of the liquid inlet pipe is passed through the cooling pool, and the other end extends out of the cooling pool and is connected to the filtering pipe, the filtering pipe is connected to the water absorption pool through a drainage pipe, a first gate plate is inserted into the filtering pipe, and the first gate plate is located below the water inlet of the drainage pipe, a filter screen is provided at the water inlet of the drainage pipe, the filter material feed pipe is arranged on the upper part of the filtering pipe and the two are connected, and filter material is placed in the filter material feed pipe.

[0005] Furthermore, the feeding equipment is a screw conveyor, which includes a body, a rotating shaft, a motor and a conveying paddle. One end of the rotating shaft is inserted into the body, and the other end is connected to the motor. The conveying paddle is arranged on the rotating shaft. A filter material channel connected to the filter pipe is opened on the top of the body, and a through hole for connecting a water drainage pipe is opened on the bottom. The discharge end of the water drainage pipe is connected to the middle part of the drainage pipe, and a plurality of discharge troughs for discharging are opened on the end of the body away from the motor.

[0006] Furthermore, a basket-shaped filter is installed in the inlet of the liquid inlet pipe, a second gate is inserted on the liquid inlet pipe, and the outer end of the second gate is connected to a first adjustment handle.

[0007] Furthermore, the liquid inlet pipe is an L-shaped pipe, and its feed inlet is in an inverted cone shape.

[0008] Furthermore, the outer end of the first gate is connected to a second adjustment handle.

[0009] Furthermore, the filter material is one or more of gravel, lightweight ceramsite filler, and activated carbon.

[0010] Furthermore, the liquid inlet pipe and the filter pipe are an integrally formed structure.

[0011] Beneficial effects of the utility model: the filter device in the utility model filters impurities in the circulating cooling water by triple filtering, so as to improve the stability of the circulating cooling water delivery in the cooling pool, and at the same time, the filter material can be replaced regularly. If fillers such as gravel are used, they can be washed and recycled, thereby effectively reducing the filtering cost;

[0012] The design of installing a basket filter in the inlet of the feed pipe can effectively block large-size floating impurities, difficult-to-intercept plankton and slime, so that the floating impurities, difficult-to-intercept plankton and slime on the water surface are filtered in the basket filter, and the filtered circulating cooling water flows into the filter pipe through the feed pipe and the basket filter in the inlet of the feed pipe. The circulating cooling water in the filter pipe is filtered twice through the filter material, so that the impurities, difficult-to-intercept plankton and slime are filtered above the filter material. The filtered circulating cooling water flows into the drainage pipe along the first gate, and the impurities and filter material are blocked and filtered when passing through the filter screen at the water inlet of the drainage pipe, which effectively improves the purity of the circulating cooling water, and also ensures that the circulating cooling water is efficiently and smoothly discharged into the water absorption pool, so that the filtering device achieves an automatic and efficient filtering effect;

[0013] The design of the first gate on the filter pipe is that the first gate is in a closed state during normal filtering circulation cooling, which can effectively block the circulating water during operation and prevent the screw conveyor from being soaked in water for a long time and reducing its service life;

[0014] The design of the conveying equipment can convey the filter material out of the filter device after long-term use, so that the filter pipe can be cleaned and replaced in time to avoid scale accumulation in the filter pipe. The filter material can also be re-cleaned and recycled.

[0015] The design of the through hole at the bottom of the screw conveyor and the water drainage pipe can ensure that when there is residual water in the screw conveyor, it can flow from the through hole to the water drainage pipe, then to the drainage pipe, and then to the water absorption pool, effectively avoiding the problem of mechanical structure corrosion caused by the humid environment in the screw conveyor;

[0016] The design of the second gate on the liquid inlet pipe is that the second gate is in an open state during normal filtering circulation cooling, and is in a closed state when the filter material needs to be replaced. When the filter material is replaced, the granular filter material can be prevented from being impacted by the circulating cooling water during transportation and replacement, which may affect the normal replacement of the filter material.

[0017] The inverted cone-shaped design of the liquid inlet pipe allows the circulating cooling water to quickly flow into the filtering device through the inverted cone-shaped overflow port of the liquid inlet pipe. In addition, several groups of filtering devices are arranged in the cooling pool, which can effectively improve the filtering efficiency of the circulating cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a cross-sectional view of the overall structure of a cooling tank, a water absorption tank and a filtering device of a circulating cooling water filtering device of the utility model;

[0020] Figure 2 This is the overall structural diagram of a circulating cooling water filtering device of the utility model;

[0021] Figure 3 It is a cross-sectional view of a feeding device of a circulating cooling water filtering device of the utility model;

[0022] In the figure: 1-filter device, 2-cooling pool, 3-water absorption pool, 4-water discharge pipe, 5-second gate, 6-first adjustment handle, 7-first gate, 8-second adjustment handle, 9-filter screen, 11-liquid inlet pipe, 12-filter pipe, 13-filter material feed pipe, 14-feeding equipment, 15-drainage pipe, 141-machine body, 142-rotating shaft, 143-motor, 144-conveying paddle, 1411-filter material channel, 1412-through hole, 1413-discharge trough. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the utility model specification to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In a specific embodiment of the present invention, Figure 1-3 As shown, a circulating cooling water filter device is specifically disclosed, wherein the filter device 1 is arranged between the cooling pool 2 and the water absorption pool 3, the filter device 1 has a plurality of groups, and each group of the filter device 1 includes a liquid inlet pipe 11, a filter pipe 12, a filter material feed pipe 13 and a conveying device 14, a second gate plate 5 is inserted on the liquid inlet pipe 11, and a first adjustment handle 6 is connected to the outer end of the second gate plate 5. The design of the second gate plate 5 on the liquid inlet pipe 11 is that the second gate plate 5 is in an open state during normal filtering and circulating cooling, and the second gate plate 5 is in a closed state when the filter material needs to be replaced, and when the filter material is replaced, the granular filter material can be prevented from being impacted by the circulating cooling water during transportation and replacement, thereby affecting the normal replacement of the filter material;

[0025] The liquid inlet pipe 11 is an L-shaped pipe, and its feed port is in an inverted cone shape. The inverted cone shape of the liquid inlet pipe 11 can enable the circulating cooling water to quickly flow into the filter device 12 through the inverted cone overflow port of the liquid inlet pipe 11. In addition, a plurality of groups of filter devices 12 are arranged in the cooling pool 2, which can effectively improve the filtering efficiency of the circulating cooling water.

[0026] One end of the liquid inlet pipe 11 is inserted into the cooling pool 2, and the other end extends out of the cooling pool 2 and is connected to the filter pipe 12. A basket filter is installed in the inlet of the liquid inlet pipe 11. The basket filter is not shown in the figure. The design of installing a basket filter in the inlet of the feed pipe 11 can effectively block large-size floating impurities, difficult-to-intercept plankton and slime, so that floating impurities, difficult-to-intercept plankton and slime on the water surface are filtered in the basket filter.

[0027] The liquid inlet pipe 11 and the filter pipe 12 are an integrally formed structure. The filter pipe 12 is connected to the water absorption pool 3 through the drainage pipe 15. A first gate plate 7 is inserted on the filter pipe 12, and the first gate plate 7 is located below the water inlet of the drainage pipe 15. The outer end of the first gate plate 7 is connected to the second adjustment handle 8. The design of the first gate plate 7 on the filter pipe 12 is that the first gate plate 7 is in a closed state during normal filtering circulation cooling, which can effectively block the circulating water during operation, and prevent the screw conveying machinery from being soaked in water for a long time and reducing the service life. A filter screen 9 is provided at the water inlet of the drainage pipe 15, a filter material feeding pipe 13 and the drainage pipe 15 are staggered up and down, the filter material feeding pipe 13 is arranged on the upper part of the filter pipe 12 and the two are connected, filter material is placed in the filter material feeding pipe 13, the filter material is one or more of gravel, light ceramsite filler, activated carbon, preferably gravel, the height of the filter material loaded is higher than the height of the water inlet of the drainage pipe 15, the feeding device 14 is connected to the discharge end of the filter pipe 12, and the feeding device 14 is used to transport the filter material and output it.

[0028] The feeding device 14 is a screw conveyor, which includes a body 141, a rotating shaft 142, a motor 143 and a conveying paddle 144. One end of the rotating shaft 142 is inserted into the body 141, and the other end is connected to the motor 143. The conveying paddle 144 is arranged on the rotating shaft 142. A filter material channel 1411 connected to the filter pipe 12 is opened at the top of the body 141, and a through hole 1412 for connecting to the drainage pipe 4 is opened at the bottom. The discharge end of the drainage pipe 4 is connected to the middle part of the drainage pipe 15. A plurality of discharge troughs 141 for discharging materials are opened at one end of the body 141 away from the motor 143. 13. The design of the above-mentioned feeding equipment 14 can convey the filter material out of the filter device 12 after long-term use, so that the filter pipe 12 can be cleaned and replaced in time to avoid scale accumulation in the filter pipe 12. The filter material can also be re-cleaned and recycled. The design of the through hole 1412 at the bottom of the screw conveyor and the water discharge pipe 4 can ensure that when there is residual water in the screw conveyor, it can flow from the through hole 1412 to the water discharge pipe 4 and then flow to the drainage pipe 15, and then flow to the water absorption pool 3, which effectively avoids the problem of mechanical structure corrosion caused by the humid environment in the screw conveyor.

[0029] The workflow of this utility model:

[0030] When it is necessary to filter the floating impurities in the cooling circulating water, push the second adjusting handle 8 to insert the first gate plate 7 into the filter pipe 12 to close the first gate plate 7, and then add the filter material from the feed pipe 13 into the filter pipe 12. When adding to the specified position, stop adding, pull the first adjusting handle 6 to open the first gate plate 5, and the circulating cooling water in the cooling pool 2 enters through the inverted cone-shaped water inlet of the liquid inlet pipe 11 of each group of filtering devices 1, and flows into the filter pipe 12 after being filtered through the basket-shaped filter at the inlet of the liquid inlet pipe 11. After the circulating cooling water is filtered by the filter material, the filter residue is filtered, and the filtered circulating cooling water flows downward along the filter material and flows from the first gate plate 7 to the filter screen 9 at the water inlet of the drainage pipe 15 for three filtrations. The filter screen 9 can also block the filter material. At the same time, the filtered circulating cooling water is discharged from the drainage pipe 15 to the water absorption pool 3. The utility model filters the impurities in the circulating cooling water through a triple filtration method to improve the stability of the circulating cooling water transportation in the cooling pool 2.

[0031] Before the filter material needs to be replaced, a conveying trolley is placed below the discharge trough 1413 of the conveying device 14;

[0032] When the filter material needs to be replaced, the first adjustment handle 6 is pushed to insert the first gate plate 5 into the liquid inlet pipe to close the first gate plate 5. At this time, the circulating cooling water blocked in the filter pipe 12 continues to flow into the drainage pipe 15 until there is no circulating cooling water flowing in the filter pipe 12. The motor 143 is started, and the motor 143 drives the rotating shaft 142 and the conveying paddle 144 to rotate. At the same time, the second adjustment handle 8 is pulled to pull the first gate plate 7 away from the filter pipe 12. The filter material passes through the filter pipe 12 and the filter material channel 1411 in turn and enters the body 141. The motor 143 drives the conveying paddle 144 to rotate, and the filter material is conveyed from the discharge trough 1413 to the conveying trolley. The filter material is then cleaned and recycled after cleaning, thereby effectively reducing the filtration cost.

[0033] At the same time, the accumulated water in the machine body 141 is discharged from the drain pipe 4 to the drainage pipe 15, and then transported from the drainage pipe 15 to the water absorption pool 3, which effectively avoids the problem that the circulating cooling water accumulates in the feeding equipment 14 for a long time, causing the parts of the feeding equipment 14 to be soaked in water for a long time and reducing the service life.

[0034] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A filter device for circulating cooling water, the filter device (1) being arranged between a cooling pool (2) and a water absorption pool (3), characterized in that: The filtering device (1) has a plurality of groups, and each group of the filtering device (1) comprises a liquid inlet pipe (11), a filtering pipe (12), a filter material feeding pipe (13) and a conveying device (14); one end of the liquid inlet pipe (11) is inserted into the cooling pool (2), and the other end extends out of the cooling pool (2) and is connected to the filtering pipe (12); the filtering pipe (12) is connected to the water absorption pool (3) through a drainage pipe (15); and a filter material feeding pipe (13) is inserted into the filtering pipe (12). A first gate plate (7) is provided, and the first gate plate (7) is located below the water inlet of the drainage pipe (15); a filter screen (9) is provided at the water inlet of the drainage pipe (15); the filter material feed pipe (13) is provided on the upper part of the filter pipe (12) and the two are connected; filter material is placed in the filter material feed pipe (13); the feeding device (14) is connected to the discharge end of the filter pipe (12); and the feeding device (14) is used to transport the filter material and output it.

2. A circulating cooling water filtering device according to claim 1, characterized in that: The feeding device (14) is a screw conveyor, which comprises a body (141), a rotating shaft (142), a motor (143) and a conveying paddle (144). One end of the rotating shaft (142) is inserted into the body (141), and the other end is connected to the motor (143). The conveying paddle (144) is arranged on the rotating shaft (142). A filter material channel (1411) connected to the filter pipe (12) is provided at the top of the body (141), and a through hole (1412) for connecting to a water discharge pipe (4) is provided at the bottom. The discharge end of the water discharge pipe (4) is connected to the middle part of the drainage pipe (15). A plurality of discharge troughs (1413) for discharging materials are provided at one end of the body (141) away from the motor (143).

3. A circulating cooling water filtering device according to claim 1, characterized in that: A basket-shaped filter is installed in the inlet of the liquid inlet pipe (11), a second gate plate (5) is inserted into the liquid inlet pipe (11), and the outer end of the second gate plate (5) is connected to a first adjustment handle (6).

4. A circulating cooling water filtering device according to claim 1, characterized in that: The liquid inlet pipe (11) is an L-shaped pipe, and its feed inlet is in an inverted cone shape.

5. A circulating cooling water filtering device according to claim 1, characterized in that: The outer end of the first gate plate (7) is connected to a second adjustment handle (8).

6. A circulating cooling water filtering device according to claim 1, characterized in that: The filter material is one or more of gravel, light ceramsite filler and activated carbon.

7. A circulating cooling water filtering device according to claim 1, characterized in that: The liquid inlet pipe (11) and the filter pipe (12) are an integrally formed structure.

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