Novel closed cooling tower heat exchanger

Abstract

The utility model discloses a novel heat exchanger of a closed cooling tower. Comprising a branch manifold and a cooling coil, the branch collecting pipe comprises a water inlet water dividing pipe and a water outlet water collecting pipe, the water inlet water dividing pipe and the water outlet water collecting pipe are arranged in the middle of the cooling coil pipe, the water inlet water dividing pipe is connected with the water inlet end of the cooling coil pipe, and the water outlet water collecting pipe is connected with the water outlet end of the cooling coil pipe; a water inlet is formed in the side surface of the water inlet water dividing pipe; an inner cavity of the water inlet water dividing pipe is divided into cavities which are bilaterally symmetrical, the side face, away from an inlet of the cavity, in each cavity is connected with the corresponding cooling coil, and the water inlet amount of each cavity is equal; the inner cavity structure of the water outlet collecting pipe is the same as that of the water inlet water dividing pipe. According to the closed cooling tower, water flow is evenly distributed after being evenly distributed for three times, all the cooling coils can obtain enough water flow, and it is guaranteed that the whole closed cooling tower can exert the due efficiency. The cooling coil pipe is prevented from being directly impacted by water flow, and the non-uniform water flow distribution degree is reduced.

Description

Technical field:

[0001] The utility model belongs to the technical field of closed cooling towers, in particular to a novel closed cooling tower heat exchanger. Background technology:

[0002] Traditional closed cooling tower heat exchanger such as Figure 1-2 As shown, water first enters the center of the manifold, then flows out to the sides before entering each cooling coil. A disadvantage of this heat exchanger is that the manifold distributes water unevenly, with the center coil receiving the largest flow rate and the outer coils receiving less flow, which can seriously affect the overall cooling tower's performance.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility model content:

[0004] The purpose of the utility model is to provide a novel closed cooling tower heat exchanger to make the water flow evenly distributed, thereby overcoming the above-mentioned defects in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a novel closed cooling tower heat exchanger, including a branch pipe and a cooling coil; the branch pipe includes an inlet water branch pipe and an outlet water branch pipe, the inlet water branch pipe and the outlet water branch pipe are respectively arranged in the middle of the cooling coil, the inlet water branch pipe is connected to the water inlet end of the cooling coil, and the outlet water branch pipe is connected to the water outlet end of the cooling coil; a water inlet is provided on the side of the inlet water branch pipe, and a water outlet is provided on the side of the outlet water branch pipe; the inner cavity of the inlet water branch pipe is divided into left-right symmetrical chambers, and the side of each chamber away from the chamber inlet is connected to the corresponding cooling coil, and the water inlet amount of each chamber is equal; the inner cavity structure of the outlet water branch pipe is the same as the inner cavity structure of the inlet water branch pipe; the water flow entering the cooling coil is ensured to be evenly distributed through the inlet water branch pipe and the outlet water branch pipe.

[0006] Preferably, in the technical solution, the water inlet is arranged perpendicularly to the water inlet end of the cooling coil, and the water outlet is arranged perpendicularly to the water outlet end of the cooling coil.

[0007] Preferably, in the technical solution, a front partition plate, a middle partition plate, and a rear partition plate are sequentially arranged in the inner cavity of the water inlet water diversion pipe, wherein the front partition plate and the middle partition plate are respectively arranged symmetrically on the left and right, and the rear partition plate is arranged on the center line of the inner cavity of the water inlet water diversion pipe. The gaps between the front partition plates and the gaps between the middle partition plates form a continuous water flow channel, which is connected to the water inlet and extends to the rear partition plate; the front partition plate and the middle partition plate on each side form a front chamber, and a gap is left between the front partition plate and the middle partition plate on each side to form a front chamber Water inlet, the front chamber is symmetrically arranged in the inner cavity of the water inlet water diversion pipe, and the front chamber and the water flow channel are connected through the front chamber water inlet; the rear partition plate and the middle partition plate on each side form the rear chamber, and a gap is left between the rear partition plate and the middle partition plate on each side to form the rear chamber water inlet, the rear chamber is symmetrically arranged in the inner cavity of the water inlet water diversion pipe, and the rear chamber and the water flow channel are connected through the rear chamber water inlet; the sides of the front chamber and the rear chamber are connected to the corresponding cooling coils; the inner cavity structure of the outlet water manifold is the same as the inner cavity structure of the water inlet water diversion pipe.

[0008] Preferably, in the technical solution, the size of the water inlet of the front chamber is smaller than that of the water inlet of the rear chamber, and the volume of the front chamber is smaller than that of the rear chamber, which limits the water storage capacity of the front chamber and increases the amount of water obtained by the rear chamber, so that the water amounts obtained by the front chamber and the rear chamber are consistent.

[0009] Preferably, in the technical solution, the water inlet of the front chamber is located in the middle of the front chamber, and the water inlet of the rear chamber is located in the middle of the rear chamber, so that after the water flows into the front chamber and the rear chamber from the water flow channel, it flows evenly to both ends of the front chamber and the rear chamber.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The manifold cavity is designed with symmetrical front and rear chambers to evenly divide the water flow. By setting up a smaller front chamber and a larger rear chamber, as well as the chamber inlet, the water flow is evenly distributed among the four chambers. After entering the chamber, the water flows evenly to both ends. After three equal divisions, the water flow is evenly distributed, ensuring that all cooling coils receive sufficient water flow, ensuring that the entire closed cooling tower can perform as expected. Water enters from the water inlet and flows into the cooling coil from the side, preventing the cooling coil from being directly impacted by the water flow and reducing the degree of uneven water distribution. Description of the drawings:

[0012] Figure 1 It is a structural diagram of an existing closed cooling tower heat exchanger;

[0013] Figure 2 This is a top view of an existing closed cooling tower heat exchanger;

[0014] Figure 3 This is a schematic diagram of the structure of a closed cooling tower heat exchanger of the utility model;

[0015] Figure 4 This is a top view of the closed cooling tower heat exchanger of the utility model. Specific implementation method:

[0016] The specific implementation methods of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation methods.

[0017] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations such as "include" or "comprising", etc., will be understood to include the stated elements or components but not to exclude other elements or other components.

[0018] like Figure 3-4 As shown, a new closed cooling tower heat exchanger includes a manifold and a cooling coil 1. The manifold includes an inlet manifold 2 and an outlet manifold 3. The inlet manifold 2 and the outlet manifold 3 are respectively arranged in the middle of the cooling coil 1, with the inlet manifold 2 connected to the water inlet end of the cooling coil 1 and the outlet manifold 3 connected to the water outlet end of the cooling coil 1. A water inlet 4 is provided on the side of the inlet manifold 2, and a water outlet 5 is provided on the side of the outlet manifold 3. The water inlet 4 is arranged perpendicular to the water inlet end of the cooling coil 1, and the water outlet 5 is arranged perpendicular to the water outlet end of the cooling coil 1. Water enters from the water inlet 4 and flows into the cooling coil 1 from the side, preventing the cooling coil 1 from being directly impacted by the water flow and reducing the degree of uneven water flow distribution.

[0019] The inner cavity of the water inlet water diversion pipe 2 is provided with a front partition plate 6, a middle partition plate 7, and a rear partition plate 8 in sequence, wherein the front partition plate 6 and the middle partition plate 7 are respectively symmetrically arranged, and the rear partition plate 8 is arranged on the center line of the inner cavity of the water inlet water diversion pipe 2. The gaps between the front partition plates 6 and the gaps between the middle partition plates 7 form a continuous water flow channel 9, which is connected to the water inlet 4 and extends to the rear partition plate 8; the front partition plate 6 and the middle partition plate 7 on each side form a front chamber 10, and a gap is left between the front partition plate 6 and the middle partition plate 7 on each side to form a front chamber water inlet 11, and the front chamber 1 0 is symmetrically arranged within the inner cavity of the water inlet manifold 2, with the front chamber 10 connected to the water flow channel 9 via the front chamber water inlet 11. The rear partition 8 and the middle partition 7 on each side form a rear chamber 12, with a gap between the rear partition 8 and the middle partition 7 on each side forming the rear chamber water inlet 13. The rear chamber 12 is symmetrically arranged within the inner cavity of the water inlet manifold 2, and is connected to the water flow channel 9 via the rear chamber water inlet 13. The sides of the front and rear chambers 10 and 12 are both connected to the corresponding cooling coils 1. The inner cavity structure of the water outlet manifold 3 is the same as that of the water inlet manifold 2. The size of the front chamber water inlet 11 is smaller than the rear chamber water inlet 13. The volume of the front chamber 10 is smaller than that of the rear chamber 12, which limits the water storage capacity of the front chamber 10 and increases the water volume of the rear chamber 12, so that the water volume of the front and rear chambers 10 and 12 is consistent. The front chamber water inlet 11 is located in the middle of the front chamber 10, and the rear chamber water inlet 13 is located in the middle of the rear chamber 12, so that after the water flows into the front chamber 10 and the rear chamber 12 from the water flow channel 9, it flows evenly to both ends of the front chamber 10 and the rear chamber 12.

[0020] Water flows into the water channel 9 through the water inlet 4. A portion of the water flows into the front chambers 10 on both sides through the front chamber water inlets 11 on both sides. The remaining water in the water channel 9 flows forward and enters the rear chambers 12 on both sides through the rear chamber water inlets 13 on both sides. The water flows evenly to both ends of the front chamber 10 and enters the corresponding cooling coils 1. The water flows evenly to both ends of the rear chamber 12 and enters the corresponding cooling coils 1. After heat exchange in the cooling coils 1, the water finally converges to the water outlet manifold 3 and is discharged through the water outlet 5. After being divided three times, the water is evenly distributed, and all cooling coils 1 can receive sufficient water flow, ensuring that the entire closed cooling tower can perform its due performance.

[0021] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the present invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the present invention and various options and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A novel closed cooling tower heat exchanger, comprising a manifold and a cooling coil; the manifold comprises an inlet manifold and an outlet manifold, the inlet manifold and the outlet manifold being disposed between the cooling coils, the inlet manifold being connected to the water inlet of the cooling coil, and the outlet manifold being connected to the water outlet of the cooling coil; characterized in that: A water inlet is provided on the side of the water inlet water diversion pipe, and a water outlet is provided on the side of the water outlet water diversion pipe; the inner cavity of the water inlet water diversion pipe is divided into left-right symmetrical chambers, and the side of each chamber away from the chamber inlet is connected to the corresponding cooling coil, and the water inlet volume of each chamber is equal; the inner cavity structure of the water outlet water diversion pipe is the same as that of the water inlet water diversion pipe.

2. The novel closed cooling tower heat exchanger according to claim 1 is characterized in that: The water inlet is arranged perpendicularly to the water inlet end of the cooling coil, and the water outlet is arranged perpendicularly to the water outlet end of the cooling coil.

3. The novel closed cooling tower heat exchanger according to claim 1 is characterized in that: The inner cavity of the water inlet water diversion pipe is provided with a front partition plate, a middle partition plate and a rear partition plate in sequence, wherein the front partition plate and the middle partition plate are respectively arranged symmetrically on the left and right, and the rear partition plate is arranged on the center line of the inner cavity of the water inlet water diversion pipe. The gaps between the front partition plates and the gaps between the middle partition plates form a continuous water flow channel, which is connected to the water inlet and extends to the rear partition plate; the front partition plate and the middle partition plate on each side form a front chamber, and a gap is left between the front partition plate and the middle partition plate on each side to form a front chamber water inlet. The chambers are symmetrically arranged on the left and right in the inner cavity of the water inlet water diversion pipe, and the front chamber is connected to the water flow channel through the front chamber water inlet; the rear partition plate and the middle partition plate on each side form a rear chamber, and a gap is left between the rear partition plate and the middle partition plate on each side to form the rear chamber water inlet, and the rear chamber is symmetrically arranged on the left and right in the inner cavity of the water inlet water diversion pipe, and the rear chamber is connected to the water flow channel through the rear chamber water inlet; the sides of the front chamber and the rear chamber are connected to the corresponding cooling coils; the inner cavity structure of the outlet water collecting pipe is the same as the inner cavity structure of the water inlet water diversion pipe.

4. The novel closed cooling tower heat exchanger according to claim 3 is characterized in that: The size of the water inlet of the front chamber is smaller than that of the water inlet of the rear chamber, and the volume of the front chamber is smaller than that of the rear chamber.

5. The novel closed cooling tower heat exchanger according to claim 3 is characterized in that: The water inlet of the front chamber is located in the middle of the front chamber, and the water inlet of the rear chamber is located in the middle of the rear chamber.

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