Self-balancing energy-saving water distribution system of open cross-flow cooling tower

Abstract

The utility model relates to a self-balancing energy-saving water distribution system of an open cross-flow cooling tower. Comprising an open cross-flow cooling tower, a tower water inlet main pipe, a tower water inlet branch pipe connected with the open cross-flow cooling tower and the tower water inlet main pipe, a tower water inlet branch pipe valve arranged on the tower water inlet branch pipe, a self-operated pressure balancer, a tower water outlet main pipe and a tower water outlet branch pipe connected with the open cross-flow cooling tower and the tower water outlet main pipe, the tower water outlet branch pipe valve is arranged on the tower water outlet branch pipe; and the self-operated pressure balancer is arranged on the water inlet branch pipe. The self-operated pressure balancer is added in a traditional water distribution system to replace an electric control valve in the traditional water distribution system, hydraulic balance between the cooling towers is automatically adjusted, uniform water distribution of the towers is ensured, resistance of a pipeline system is reduced, and energy consumption of the system is reduced. The device is simple in structure, safe and reliable.

Description

Technical Field

[0001] The utility model relates to a self-balancing energy-saving water distribution system of an open cross-flow cooling tower. Background Art

[0002] Common operating problems during the operation of multiple open cross-flow cooling towers are uneven water distribution and the cooling tower heat dissipation efficiency does not meet the design requirements. The traditional adjustment method is to install an electric regulating valve on the cooling tower water inlet branch pipe, adjust the electric regulating valve according to the operating conditions of each tower, adjust the valve hole size of the branch regulating valve, and control the water supply pressure balance of each branch. The traditional adjustment method achieves the purpose of adjusting the water distribution balance of the cooling tower by increasing the local resistance of the branch. The traditional adjustment method has a high adjustment frequency and cannot achieve real-time adjustment, resulting in the cooling efficiency of the cooling tower not meeting the design expectations. The utility model adopts a self-powered pressure balancer to replace the electric regulating valve, and achieves automatic balance of the cooling tower water inlet pipe pressure through the interaction of water pressure and air pressure, while reducing the pressure loss of the water inlet branch pipe, reducing the resistance along the cooling water pipeline system, saving the power consumption of the cooling water pipeline system water pump, increasing the temperature difference between the inlet and outlet water of the cooling tower, and improving the refrigeration efficiency. The utility model system can achieve energy saving and efficiency improvement of the cooling water system. Summary of the invention

[0003] The problem to be solved by the utility model is to provide a self-balancing and energy-saving water distribution system for an open cross-flow cooling tower, which can realize self-balancing, reduce the resistance along the cooling water pipeline system, automatically balance the inlet pressure of the water inlet branch pipes of each tower, and realize uniform water distribution in the open cross-flow cooling tower.

[0004] The technical scheme provided by the utility model is: a self-balancing energy-saving water distribution system of an open cross-flow cooling tower, comprising an open cross-flow cooling tower, a tower water inlet main pipe, a tower water inlet branch pipe connecting the open cross-flow cooling tower and the tower water inlet main pipe, a tower water inlet branch pipe valve arranged on the tower water inlet branch pipe, a self-operated pressure balancer, a tower water outlet main pipe, a tower water outlet branch pipe connecting the open cross-flow cooling tower and the tower water outlet main pipe, and a tower water outlet branch pipe valve arranged on the tower water outlet branch pipe; the self-operated pressure balancer is installed on the water inlet branch pipe, the openings of the tower water inlet branch pipe valves and the tower water outlet branch pipe valves are kept fully open, and the water inlet pressure of the open cross-flow cooling tower is kept consistent through the action of the self-operated pressure balancer, so that uniform water distribution of each tower is achieved.

[0005] The system is a system that can automatically realize uniform water distribution, and is used for automatically balancing the inlet pressure of an open cross-flow cooling tower.

[0006] The self-operated pressure balancer is installed vertically, the water inlet of the self-operated pressure balancer is located at the bottom of the self-operated pressure balancer, and the water outlet of the self-operated pressure balancer is located at the side of the self-operated pressure balancer. Water flows into the self-operated pressure balancer from bottom to top, and after passing through the internal pipe, flows out horizontally from the side of the self-operated pressure balancer.

[0007] The utility model is used for the installation of new, rebuilt and expanded open cross-flow cooling tower systems, which can realize automatic pressure balance, reduce the number of electric regulating valves installed on the water inlet branch pipes of traditional open cross-flow cooling tower systems, reduce on-site personnel operations, and effectively realize uniform water distribution in each tower. The utility model can be applied to open cross-flow cooling tower systems used in various energy stations. The utility model has a simple structure and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model system. DETAILED DESCRIPTION

[0009] See also Figure 1 The utility model energy-saving water distribution system includes a tower water inlet main pipe 1, a tower water inlet branch pipe 2, a tower water inlet branch pipe valve 3, a self-operated pressure balancer 4, an open cross-flow cooling tower 5, a tower water outlet branch pipe valve 6, a tower water outlet branch pipe 7, and a tower water outlet main pipe 8. A plurality of open cross-flow cooling towers are arranged in parallel between the water inlet main pipe and the water outlet main pipe. The water inlet main pipe and the water outlet main pipe are arranged in parallel at the bottom of the cooling tower. Each open cross-flow cooling tower is connected to the tower water inlet main pipe through a tower water inlet branch pipe, and a tower water inlet branch pipe valve and a self-operated pressure balancer are arranged on each tower water inlet branch pipe; each open cross-flow cooling tower is connected to the tower water outlet main pipe through a tower water outlet branch pipe, and a tower water outlet branch pipe valve is arranged on each tower water outlet branch pipe. The self-operated pressure balancer is installed vertically, and the water inlet of the self-operated pressure balancer is located at the bottom of the self-operated pressure balancer, and the water outlet of the self-operated pressure balancer is located on the side of the self-operated pressure balancer. The water flows from bottom to top into the tower water inlet branch valve, self-operated pressure balancer, and the top inlet of the open cross-flow cooling tower. After being cooled by the cooling tower from top to bottom, the water flows into the tower water outlet branch valve, tower water outlet branch pipe, and is sent out through the tower water outlet main pipe. At the top of each tower, the water flows evenly through the self-operated pressure balancer.

[0010] The utility model adds a self-operated pressure balancer to the traditional water distribution system, replaces the electric regulating valve in the traditional water distribution system, automatically adjusts the hydraulic balance between the cooling towers, ensures uniform water distribution in each tower, and reduces the resistance of the pipeline system and the energy consumption of the system. The utility model has a simple structure and is safe and reliable.

[0011] The utility model is applicable to the cooling water system of open cross-flow cooling towers in various energy stations. The system does not set up electric control valves, reducing the initial investment of the cooling water system; the system realizes self-powered pressure balance, significantly reducing the frequency of manual adjustment of hydraulic balance conditions; the system no longer relies on the size of the regulating valve to achieve pressure balance at the water inlet of each tower, reducing the flow resistance of water in the system and reducing the energy consumption of the system; the system realizes uniform water distribution, giving full play to the cooling capacity of the cooling tower, thereby improving the efficiency of the cooling system.

Claims

1. An open cross-flow cooling tower self-balancing energy-saving water distribution system, characterized in that: The invention comprises an open cross-flow cooling tower, a tower water inlet main pipe, a tower water inlet branch pipe connecting the open cross-flow cooling tower and the tower water inlet main pipe, a tower water inlet branch pipe valve arranged on the tower water inlet branch pipe, a self-operated pressure balancer, a tower water outlet main pipe, a tower water outlet branch pipe connecting the open cross-flow cooling tower and the tower water outlet main pipe, and a tower water outlet branch pipe valve arranged on the tower water outlet branch pipe; the self-operated pressure balancer is installed on the water inlet branch pipe, and the openings of the tower water inlet branch pipe valves and the tower water outlet branch pipe valves are kept fully open. Through the action of the self-operated pressure balancer, the water inlet pressure of the open cross-flow cooling tower is kept consistent, so that the water distribution of each tower is evenly distributed.

2. The self-balancing water distribution system of an open cross-flow cooling tower according to claim 1 is characterized in that: The self-operated pressure balancer is installed vertically, the water inlet of the self-operated pressure balancer is located at the bottom of the self-operated pressure balancer, and the water outlet of the self-operated pressure balancer is located at the side of the self-operated pressure balancer.

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