Cross-flow cooling tower

Abstract

The utility model relates to the technical field of cooling systems, and discloses a cross-flow cooling tower which comprises a tower body and a water inlet pipe, filler assemblies are arranged on the outer sides of the two sides of the tower body, a water spreading disc is arranged at the top of each filler assembly, a water dispersing device is arranged above each water spreading disc, a water collecting tank is arranged at the bottom of the tower body, and a water outlet pipe is arranged at the bottom of the tower body. The water inlet pipe extends into the water collecting tank and is arranged on the center line of an inner cavity of the tower body from bottom to top, the water outlet end of the top of the water inlet pipe is connected with two water inlet branch pipes, the water inlet branch pipes are communicated with the water dispersing device, and the water collecting tank is provided with a water outlet connector connected with the water outlet pipe. By means of the built-in water inlet pipe, the whole structure is compact, space is saved, water supply balance of the two sides of the tower body is guaranteed, energy consumption is reduced, cooling efficiency is improved, and pipeline detection and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling systems, and particularly to a cross-flow cooling tower. Background Art

[0002] The cross-flow cooling tower circulating cooling water system is an important industrial cooling equipment system, which has high heat exchange performance. Its working principle is mainly to spray hot water or steam on the packing in the tower, and utilize the cooling effect of the tower body and the flow of air to lower the temperature of the water or steam.

[0003] However, the water inlet of the cross-flow cooling tower is arranged at the top of the tower body, and the height of the tower body is generally more than 4 meters. Generally, the cooling water pipes are vertically connected to the water inlet at the top of the tower body by welding on the ground. During construction, not only is the amount of high-altitude work large, but also the high temperature and sparks generated during the pipe welding process are likely to splash onto the flammable materials of the cooling tower, thus causing a fire. When the cooling supply and return pipes are operating, there will be vibrations and the operating weight is large, so the pipe supports cannot be fixed on the tower body, otherwise it will affect the structural stability of the tower body. Therefore, the riser pipe of the water inlet pipe from the ground water inlet main pipe to the water inlet of the cooling tower at the top of the tower body is generally arranged overhead and cannot be fixed with supports, presenting major potential hazards.

[0004] The water inlets at the top of the cross-flow cooling tower are arranged in two, and the water distribution trays in the tower are distributed left and right. The two water inlets are connected together through the same pipe. Therefore, the lengths of the water inlet pipes for the two water inlets are inconsistent, and it is difficult to achieve the balance of the water inflow of the two water inlets during water inlet, which may lead to the imbalance of the water level in the water distribution tray, affecting the heat dissipation of the cooling tower, resulting in low cooling efficiency, increasing the energy consumption and operating cost of the system. When the cooling water flow is small, after the cooling water directly enters the water distribution tray from the water inlet at the top of the tower, due to insufficient water flow, the water is easily concentrated near the water inlet and cannot spread to the far part of the water distribution tray, resulting in uneven distribution of the cooling water in the water distribution tray, and some nozzles in the water distribution tray are not covered by water, unable to achieve uniform water distribution, further reducing the cooling efficiency. Summary of the Utility Model

[0005] The problem to be solved by the utility model is to provide a cross-flow cooling tower with a compact overall structure, space saving, ensuring water supply balance, reducing energy consumption and improving cooling efficiency.

[0006] To solve the above technical problems, the present utility model provides a cross-flow cooling tower, comprising a tower body and a water inlet pipe. Packing assemblies are provided on both outer sides of the tower body. A water distribution tray is provided at the top of the packing assembly. A water diffuser is provided above the water distribution tray. A water collecting tank is provided at the bottom of the tower body. The water inlet pipe extends into the water collecting tank and is arranged from bottom to top on the central axis of the inner cavity of the tower body. The top water outlet end of the water inlet pipe is connected with two water distribution sub-pipes, and the water distribution sub-pipes are communicated with the water diffuser. The water collecting tank is provided with a water outlet interface connected to the water outlet pipe.

[0007] As a preferred solution of the present utility model, the tower body is provided with a base, and the base comprises a concrete foundation fixedly connected to the foundation and a spring shock absorber arranged between the tower body and the concrete foundation.

[0008] As a preferred solution of the present utility model, ultrasonic flow regulating electric butterfly valves with temperature sensors and flow sensors are provided on both the water inlet pipe and the water outlet pipe.

[0009] As a preferred solution of the present utility model, a support frame for fixing the water inlet pipe is provided at the bottom of the inner cavity of the tower body.

[0010] As a preferred solution of the present utility model, the horizontal height of the water inlet pipe at the water collecting tank is the same as the horizontal height of the water outlet pipe.

[0011] As a preferred solution of the present utility model, a three-way valve is provided at the top water outlet end of the water inlet pipe, and the two water distribution sub-pipes are respectively connected to the two water outlet ends of the three-way valve.

[0012] As a preferred solution of the present utility model, the water inlet pipe is a PVC water pipe.

[0013] For a cross-flow cooling tower implemented by the present utility model, compared with the prior art, its beneficial effects are as follows:

[0014] In the present utility model, the water inlet pipe enters from the bottom of the tower body and is built inside the tower body, being less affected by the external environment. Therefore, the risk of pipeline leakage is reduced, which helps to ensure the stable operation of the cooling system, reduce the maintenance cost caused by leakage, and reduce high-altitude operations. Moreover, both water distribution sub-pipes are connected between the top water outlet end of the water inlet pipe and the water diffuser. The water inlet pipe can evenly distribute the water inflow to the two water distribution sub-pipes, achieving the same water flow path inside the tower and ensuring the balance of water supply on both sides of the tower body. Moreover, a square water diffuser is added above the water distribution tray, effectively diffusing the cooling tower water inlet over a large area, ensuring uniform distribution of cooling water on the water distribution tray at low flow rates, and improving the cooling efficiency. It can be seen that the present utility model has an internal water inlet pipe, with a compact overall structure, space saving, ensuring the balance of water supply on both sides of the tower body, reducing energy consumption, improving the cooling efficiency, and facilitating pipeline detection and maintenance. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.

[0016] Figure 1 is a top view of an existing cross-flow cooling tower;

[0017] Figure 2 is a schematic structural diagram of a cross-flow cooling tower provided by the present utility model;

[0018] Figure 3 is a top view of a cross-flow cooling tower provided by the present utility model;

[0019] In the figure, tower body 1; packing assembly 11; water distribution tray 12; water diffuser 13; water collecting tank 14; water inlet pipe 2; water inlet branch pipe 21; three-way valve 22; support frame 23; water outlet pipe 3; base 4; concrete foundation 41; spring shock absorber 42; ultrasonic flow regulating electric butterfly valve 5. Specific embodiments

[0020] The following combines the accompanying drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. It should be understood that the present utility model uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0022] Such as Figures 2-3As shown in the figure, a cross-flow cooling tower according to a preferred embodiment of the present utility model includes a tower body 1 and a water inlet pipe 2. The outer sides of both sides of the tower body 1 are provided with packing assemblies 11. The top of the packing assembly 11 is provided with a water distribution tray 12. Above the water distribution tray 12 is provided a water diffuser 13. The bottom of the tower body 1 is provided with a water collecting tank 14. The water inlet pipe 2 extends into the water collecting tank 14 and is arranged on the central axis of the inner cavity of the tower body 1 from bottom to top. The top water outlet end of the water inlet pipe 2 is connected with two water distribution branch pipes 21. The water distribution branch pipes 21 are communicated with the water diffuser 13. The water collecting tank 14 is provided with a water outlet interface connected to the water outlet pipe 3.

[0023] In the present utility model, the water inlet pipe 2 enters from the bottom of the tower body 1, and the water inlet pipe 2 is built inside the tower body 1, being less affected by the external environment. Therefore, the risk of pipeline leakage is reduced, which helps to ensure the stable operation of the cooling system, reduce the maintenance cost caused by leakage, and facilitate pipeline detection and maintenance, reducing high-altitude operations. Moreover, both water distribution branch pipes 21 are connected between the top water outlet end of the water inlet pipe 2 and the water diffuser 13. The water inlet pipe 2 can evenly distribute the water inflow to the two water distribution branch pipes 21, realizing the same water flow path inside the tower and ensuring the balance of water supply on both sides of the tower body 1. Moreover, a square water diffuser 13 is added above the water distribution tray 12, effectively diffusing the cooling tower water inlet over a large area to ensure uniform distribution of the cooling water on the water distribution tray 12. It can be seen that the built-in water inlet pipe 2 of the present utility model has a compact overall structure, saves space, reduces energy consumption, improves the cooling efficiency, and facilitates pipeline detection and maintenance.

[0024] Exemplarily, the tower body 1 is provided with a base 4. The base 4 includes a concrete foundation 41 fixedly connected to the ground and a spring shock absorber 42 arranged between the tower body 1 and the concrete foundation 41. The spring shock absorber 42 can absorb the vibration generated by the cooling tower to reduce the outward transmission of the vibration generated by the cooling tower, thereby effectively reducing noise.

[0025] Exemplarily, ultrasonic flow regulating electric butterfly valves 5 with temperature sensors and flow sensors are provided on both the water inlet pipe 2 and the water outlet pipe 3, which can quickly adjust the opening degree of the valve according to the actual working conditions, thereby realizing the function of quickly adjusting the water flow rate.

[0026] Exemplarily, a support frame 23 for fixing the water inlet pipe 2 is provided at the bottom of the inner cavity of the tower body 1 to improve the fixing effect of the water inlet pipe 2.

[0027] Preferably, the horizontal height of the water inlet pipe 2 at the water collecting tank 14 is the same as the horizontal height of the water outlet pipe 3, which is convenient for the connection and installation of the water inlet pipe 2 and the water outlet pipe 3.

[0028] Further, a three-way valve 22 is provided at the top water outlet end of the water inlet pipe 2, and the two water inlet branch pipes 21 are respectively connected to the two water outlet ends of the three-way valve 22, which facilitates the connection between the water inlet branch pipes 21 and the water inlet pipe 2 and ensures the balance of the water inflow of each water inlet branch pipe 21.

[0029] Exemplarily, the water inlet pipe 2 is a PVC water pipe. The cooling water is supplied to the top of the cooling tower by a cooling water pump. Therefore, the pressure of the water inlet pipe 2 of the cooling tower is not large, and the PVC water pipe can be used for the water inlet pipe 2, which can reduce the welding operation.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered that the scope described in this specification.

[0032] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A cross-flow cooling tower, characterized in that: It comprises a tower body and a water inlet pipe, wherein packing components are arranged on the outer sides of both sides of the tower body, a water spreading plate is arranged on the top of the packing component, a water diffuser is arranged above the water spreading plate, a water collecting tank is arranged at the bottom of the tower body, the water inlet pipe extends into the water collecting tank and is arranged from bottom to top on the center line of the inner cavity of the tower body, two water inlet branches are connected to the top water outlet end of the water inlet pipe, the water inlet branches are communicated with the water diffuser, and the water collecting tank is provided with a water outlet interface connected with the water outlet pipe.

2. The cross-flow cooling tower according to claim 1, characterized in that: The tower body is provided with a base, and the base comprises a concrete foundation fixedly connected to the foundation and a spring shock absorber arranged between the tower body and the concrete foundation.

3. The cross-flow cooling tower according to claim 1, characterized in that: The water inlet pipe and the water outlet pipe are both provided with ultrasonic flow regulating electric butterfly valves with temperature sensors and flow sensors.

4. The cross-flow cooling tower according to claim 1, characterized in that: A support frame for fixing the water inlet pipe is provided at the bottom of the inner cavity of the tower body.

5. The cross-flow cooling tower according to claim 1, characterized in that: The horizontal height of the water inlet pipe at the water collecting tank is the same as the horizontal height of the water outlet pipe.

6. The cross-flow cooling tower according to claim 1, characterized in that: A three-way valve is provided at the top water outlet end of the water inlet pipe, and the two water inlet branches are respectively connected to the two water outlet ends of the three-way valve.

7. The cross-flow cooling tower according to claim 1, characterized in that: The water inlet pipe is a PVC water pipe.

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