Cooling water circulation structure of closed water cooling tower

Abstract

The utility model relates to the technical field of water cooling towers, in particular to a cooling water circulation structure of a closed water cooling tower. According to the utility model, the collecting box and the water storage box are arranged, cooling water is sprayed out through the spraying mechanism to cool materials in the tube nest, the cooling water enters the collecting box through the water collecting port after cooling, impurities in the cooling water are removed through the descaling mechanism in the collecting box, and then the cooling water is conveyed into the water storage box; according to the utility model, the cyclic utilization of water is realized, and impurities in the cooling water are removed by utilizing the descaling mechanism, so that the impurities in the water are prevented from being adsorbed on the tubes, and the heat exchange effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a closed cooling tower cooling water circulation structure. Background Art

[0002] At present, the circulating spray water used in closed cooling towers is soft water purified from tap water. The calcium ions, magnesium ions, sodium ions and other components in the hard water that cause the water quality to be very hard are removed to obtain soft water. The circulating spray water is evenly distributed on the tubes of the closed cooling tower through a water pump for heat exchange and cooling.

[0003] However, the workplace is usually dusty, and the dust will enter the cooling tower through the air inlet on the cooling tower and mix with the circulating spray water. After a long period of heat exchange with the tubes, the outer wall of the tubes will be severely scaled, affecting the heat exchange effect, resulting in high water temperature of the equipment circulating water, affecting production. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a closed cooling tower cooling water circulation structure for removing impurities in spray water.

[0005] The technical solution adopted by the utility model to solve its technical problems is a closed cooling tower cooling water circulation structure, including a tower body, a tube array is provided in the tower body, a spray mechanism is provided above the tube array, an inlet and an outlet connected to the tube array are provided on the outside of the tower body, a fan is provided on the top of the tower body, and an air inlet is provided on the side wall of the tower body; a water collecting box is provided at the bottom of the tower body cavity, a partition is provided in the water collecting box, the partition divides the water collecting box into a collecting box and a water storage tank, a water collecting port opposite to the tube array is provided on the collecting box, a water outlet pipe is provided on the collecting box, one end of the water outlet pipe is connected to the inner cavity of the collecting box, and the other end is connected to the inner cavity of the water storage tank, a delivery pump and a descaling mechanism are provided on the water outlet pipe, a delivery pipe is provided on the water storage tank, one end of the delivery pipe is connected to the inner cavity of the water storage tank, and the other end is connected to the spray mechanism, and a water pump is provided on the delivery pipe.

[0006] Furthermore, the upper surface of the water collecting tank is an inclined surface inclined toward the water collecting port.

[0007] Furthermore, a filter screen is provided at the water collection port.

[0008] Furthermore, a cooler is provided behind the descaling mechanism, and the cooler is provided on the water outlet pipe.

[0009] Furthermore, the flow rate of the delivery pump is greater than the flow rate of the water pump, and the top of the partition is provided with an overflow hole connecting the collection box and the water storage tank.

[0010] Furthermore, the spray mechanism includes a spray pipe, the spray pipe is connected to the delivery pipe, and the spray pipe is provided with a plurality of spray heads along its axial direction, and the spray heads are opposite to the array of tubes.

[0011] Furthermore, the descaling mechanism is an ion exchange water purifier.

[0012] The beneficial effects of the utility model are as follows: by setting a collection box and a water storage tank, cooling water is sprayed out through a spray mechanism to cool the material in the tube array. After cooling, the cooling water enters the collection box through the water collection port, the water in the collection box is removed from the impurities in the cooling water by the descaling mechanism, and then transported to the water storage tank. The cooling water in the water storage tank enters the spray mechanism through a water pump for spraying. The utility model realizes the recycling of water, uses the descaling mechanism to remove impurities in the cooling water, avoids the impurities in the water from being adsorbed on the tube array, and ensures the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure markings: 1-tower body; 2-tubes; 201-inlet; 202-outlet; 3-spraying mechanism; 301-spraying pipe; 302-spraying head; 4-water collecting tank; 5-partition; 6-collecting box; 7-water storage tank; 8-water outlet pipe; 9-scaling mechanism; 10-cooler; 11-delivery pipe; 12-water pump; 13-filter; 14-delivery pump; 15-overflow hole; 16-air inlet; 17-fan. DETAILED DESCRIPTION

[0015] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0016] like Figure 1As shown, the utility model of the closed cooling tower cooling water circulation structure includes a tower body 1, a tube array 2 is provided in the tower body 1, a spray mechanism 3 is provided above the tube array 2, an inlet 201 and an outlet 202 connected to the tube array 2 are provided on the outside of the tower body 1, a fan 17 is provided on the top of the tower body 1, and an air inlet 16 is provided on the side wall of the tower body 1; it is characterized in that: a water collecting box 4 is provided at the bottom of the inner cavity of the tower body 1, a partition 5 is provided in the water collecting box 4, and the partition 5 divides the water collecting box 4 into They are a collecting box 6 and a water storage tank 7. The collecting box 6 is provided with a water collecting port opposite to the array of tubes 2. The collecting box 6 is provided with a water outlet pipe 8. One end of the water outlet pipe 8 is communicated with the inner cavity of the collecting box 6, and the other end is communicated with the inner cavity of the water storage tank 7. The water outlet pipe 8 is provided with a delivery pump 14 and a descaling mechanism 9. The water storage tank 7 is provided with a delivery pipe 11. One end of the delivery pipe 11 is communicated with the inner cavity of the water storage tank 7, and the other end is communicated with the spraying mechanism 3. The delivery pipe 11 is provided with a water pump 12.

[0017] Among them, the tower body 1 is cylindrical, and the tubes 2 are coiled tubes formed by spiraling pipes, and the materials that need to be cooled are placed inside; the spraying mechanism 3 is used to spray water onto the tubes 2 to cool the materials in the tubes 2; the inlet 201 is arranged above the outlet 202, and the materials enter the tubes 2 through the inlet 201 and are discharged from the outlet 202. The fan 17 is arranged at the top of the tower body 1, and the air inlet 16 is arranged on the side wall of the tower body 1. The fan 17 rotates to form a negative pressure inside the tower body 1, and the external cold air enters the tower body 1 through the air inlet 16 to take away the heat; the water collecting tank 4 is used to collect cooling water. Under the action of gravity, the cooling water will fall downward. In order to prevent the cooling water treated by the descaling mechanism 9 from mixing with the cooling water that has not been treated by the descaling mechanism 9, a partition 5 is provided in the inner cavity of the water collecting tank 4. The partition 5 divides the water collecting tank 4 into a collecting tank 6 and a water storage tank 7. The collecting tank 6 is used to collect untreated cooling water, and the water storage tank 7 is used to store the treated cooling water. The treated cooling water; the water collecting port is a rectangular port or a circular port, and the water collecting port is arranged on the upper surface of the collecting box 6, and the cooling water can enter the collecting box 6 through the water collecting port; one end of the outlet pipe 8 is connected to the inner cavity of the collecting box 6, and the other end is connected to the inner cavity of the water storage tank 7, and a descaling mechanism 9 and a delivery pump 14 are provided on the outlet pipe 8. The delivery pump 14 delivers the cooling water in the collecting box 6 to the descaling mechanism 9. The descaling mechanism 9 can be an ion exchange water purifier or a reverse osmosis membrane water purifier. The descaling mechanism 9 can adsorb impurities in the water to achieve water cleaning, so that the untreated cooling water in the collecting box 6 can enter the water storage tank 7 after being processed by the descaling mechanism 9; one end of the delivery pipe 11 is connected to the inner cavity of the water storage tank 7, and the other end is connected to the spraying mechanism 3. A water pump 12 is provided on the delivery pipe 11. The water pump 12 provides suction to suck out the water storage tank 7 and delivers it to the spraying mechanism 3 through the delivery pipe 11 to achieve spraying of the tube array 2.

[0018] In order to facilitate the cooling water to enter the collection box 6, further see Figure 1 The upper surface of the water collecting box 4 is an inclined surface inclined toward the water collecting port.

[0019] For the preliminary filtration of large particles in cooling water; further, see Figure 1 A filter screen 13 is provided at the water collection port.

[0020] After the heat exchange of the material in the tube 2, the temperature of the cooling water will increase. Figure 1 A cooler 10 is provided behind the descaling mechanism 9 and is provided on the water outlet pipe 8. The cooler 10 is used to cool the cooling water, which affects the subsequent cooling effect. The descaling mechanism 9 is provided in front of the cooler 10 to prevent impurities in the cooling water from affecting the cooler 10.

[0021] In order to ensure that there is always water in the water tank 7, the flow rate of the delivery pump 14 is further greater than the flow rate of the water pump 12, so that the water inlet of the water tank 7 is greater than the water outlet, ensuring that there is always cooling water in the water tank 7.

[0022] Since the flow rate of the delivery pump 14 is greater than the flow rate of the water pump 12, the water in the water tank 7 gradually increases. The top of the partition 5 is provided with an overflow hole 15 connecting the collection tank 6 and the water tank 7. The overflow hole 15 has two functions: first, it is used to exhaust the air in the water tank 7 when the water is filled with water; second, when the water in the water tank 7 is too much, the water in the water tank 7 can flow back to the collection tank 6 through the overflow hole 15.

[0023] In order to make the cooling water spray more uniform, further see Figure 1 The spray mechanism 3 includes a spray pipe 301 , which is connected to the delivery pipe 11 . The spray pipe 301 is provided with a plurality of spray heads 302 along its axial direction, and the spray heads 302 are opposite to the tube array 2 .

[0024] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A closed cooling tower cooling water circulation structure, comprising a tower body (1), wherein a tube array (2) is provided in the tower body (1), a spray mechanism (3) is provided above the tube array (2), an inlet (201) and an outlet (202) communicating with the tube array (2) are provided on the outside of the tower body (1), a fan (17) is provided on the top of the tower body (1), and an air inlet (16) is provided on the side wall of the tower body (1); characterized in that: A water collecting box (4) is provided at the bottom of the inner cavity of the tower body (1), a partition (5) is provided in the water collecting box (4), and the partition (5) divides the water collecting box (4) into a collecting box (6) and a water storage tank (7). The collecting box (6) is provided with a water collecting port opposite to the tube array (2), and the collecting box (6) is provided with a water outlet pipe (8), one end of the water outlet pipe (8) is communicated with the inner cavity of the collecting box (6), and the other end is communicated with the inner cavity of the water storage tank (7), and a delivery pump (14) and a descaling mechanism (9) are provided on the water outlet pipe (8), and a delivery pipe (11) is provided on the water storage tank (7), one end of the delivery pipe (11) is communicated with the inner cavity of the water storage tank (7), and the other end is communicated with the spray mechanism (3), and a water pump (12) is provided on the delivery pipe (11).

2. The closed cooling tower cooling water circulation structure according to claim 1, characterized in that: The upper surface of the water collecting box (4) is an inclined surface inclined toward the water collecting port.

3. The closed cooling tower cooling water circulation structure according to claim 2, characterized in that: A filter screen (13) is provided at the water collection port.

4. The closed cooling tower cooling water circulation structure according to claim 1, characterized in that: A cooler (10) is arranged behind the descaling mechanism (9), and the cooler (10) is arranged on the water outlet pipe (8).

5. The closed cooling tower cooling water circulation structure according to claim 1, characterized in that: The flow rate of the delivery pump (14) is greater than the flow rate of the water pump (12).

6. The closed cooling tower cooling water circulation structure according to claim 5, characterized in that: The top of the partition (5) is provided with an overflow hole (15) communicating with the collection box (6) and the water storage tank (7).

7. The closed cooling tower cooling water circulation structure according to claim 1, characterized in that: The spray mechanism (3) comprises a spray pipe (301), the spray pipe (301) is connected to the delivery pipe (11), and the spray pipe (301) is provided with a plurality of spray heads (302) along its axial direction, and the spray heads (302) are opposite to the tube array (2).

8. The closed cooling tower cooling water circulation structure according to claim 1, characterized in that: The descaling mechanism (9) is an ion exchange type water purifier.

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