Cooling water system of sulfuric acid main fan

Abstract

The utility model discloses a sulfuric acid main fan cooling water system which comprises a desalted water station and a main fan connected with a water outlet pipe of the desalted water station, the water outlet pipe of the desalted water station is further connected with a desalted water tank, a circulating water pipeline is connected between the desalted water tank and the main fan, and an emergency pump is arranged on the circulating water pipeline. And the desalted water tank is connected with an external cooling water pipe. The effects of improving the supply stability of desalted water, realizing emergency supply and improving the operation stability of the sulfuric acid device are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling water systems, in particular to a sulfuric acid main fan cooling water system. Background Art

[0002] In the two-turn and two-absorption process of producing sulfuric acid by decomposing phosphogypsum, the main fan of the sulfuric acid unit is water-cooled with desalted water. During conventional production, a water cooling system is used to supply cooling water. If the water supply pipeline of the water cooling system fails, the sulfuric acid unit faces the risk of shutdown. Summary of the invention

[0003] The technical problem to be solved by the utility model is that the use of a water supply system may result in a risk of stopping the sulfuric acid device due to a failure of the water supply system.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sulfuric acid main fan cooling water system, including a desalted water station and a main fan connected to a water outlet pipe of the desalted water station, the water outlet pipe of the desalted water station is also connected to a desalted water tank, a circulating water pipeline is connected between the desalted water tank and the main fan, an emergency pump is arranged on the circulating water pipeline, and an external cooling water pipe is connected to the desalted water tank.

[0005] Preferably, a cooling water tank is fixedly installed in the desalted water tank, the cooling water tank is connected to the cooling water pipe, an S-shaped desalted water flow channel is arranged in the desalted water tank, the circulating water pipeline includes a circulating water supply pipe and a circulating water return pipe, the circulating water supply pipe and the circulating water return pipe are respectively connected to the two ends of the desalted water flow channel, and the cooling water tank runs through the desalted water flow channel.

[0006] Preferably, baffles are alternately arranged on the opposite side walls of the desalted water tank, the desalted water flow channel is located between two adjacent baffles, the cooling water tank vertically penetrates the baffles and the top and bottom ends of the cooling water tank are respectively connected to the inner top wall and inner bottom wall of the desalted water tank.

[0007] Preferably, a strip-shaped protrusion is fixedly provided horizontally on the outer wall of the cooling water tank.

[0008] Preferably, the desalted water tank and the cooling water tank both have top water intake and bottom water discharge.

[0009] 1. The utility model provides a cooling water system for a sulfuric acid main fan. By adding a desalted water tank to the original cooling water supply pipeline and adding a circulating water pipeline between the desalted water tank and the main fan, when a desalted water station fails, the desalted water tank can be used to provide desalted water to cool the main fan, thereby maintaining stable production of the sulfuric acid device for a period of time, thereby providing a buffer for the maintenance of the desalted water station and ensuring the stability of the operation of the sulfuric acid device.

[0010] 2. A cooling water tank is installed in the desalted water tank. Conventional cooling water instead of desalted water is introduced into the cooling water tank. When the desalted water tank is operated as a backup, the desalted water in the desalted water tank is cooled by the cooling water tank to ensure the effective supply of desalted water during emergency periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is a schematic structural diagram of a desalted water tank in an embodiment of the utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the desalted water tank in an embodiment of the utility model.

[0015] In the figure: 1. Desalted water station; 2. Desalted water tank; 21. Tank body; 22. Water inlet pipe; 23. Circulating water supply pipe; 24. Circulating return water pipe; 25. Cooling drainage pipe; 26. Cooling water supply pipe; 27. Baffle; 28. Cooling water tank; 3. Main fan; 4. Emergency pump. DETAILED DESCRIPTION

[0016] like Figure 1-3 The utility model provides a sulfuric acid main fan cooling water system, comprising a desalted water station 1 and a main fan 3 connected to a water outlet pipe of the desalted water station 1, a desalted water tank 2 is also connected to the water outlet pipe of the desalted water station 1, a circulating water pipeline is connected between the desalted water tank 2 and the main fan 3, an emergency pump 4 is arranged on the circulating water pipeline, and the desalted water tank 2 is connected to an external cooling water pipe.

[0017] When a failure occurs in the desalting water station 1, the desalted water temporarily stored in the desalting water tank 2 is transported to the main fan 3 by the emergency pump 4 to cool the main fan 3. The desalted water cooled by the main fan 3 is returned to the desalting water tank 2 through the circulating water pipeline, and then the desalted water in the desalting water tank 2 is cooled through an external cooling water pipe for short-term circulation.

[0018] like Figure 2 and Figure 3 The desalted water tank 2 is fixedly provided with a cooling water tank 28, the cooling water tank 28 is connected to the cooling water pipe, the desalted water tank 2 is provided with an S-shaped desalted water flow channel, the circulating water pipeline includes a circulating water supply pipe 23 and a circulating water return pipe 24, the circulating water supply pipe 23 and the circulating water return pipe 24 are respectively connected to the two ends of the desalted water flow channel, and the cooling water tank 28 runs through the desalted water flow channel.

[0019] The desalted water tank 2 includes a tank body 21, and a water inlet pipe 22 and a circulating water return pipe 24 are connected to the top of the tank body 21. The water inlet pipe 22 is connected to the water outlet pipe of the desalted water station 1. When the desalted water station 1 transports desalted water to cool the main fan 3, part of the desalted water enters the desalted water tank 2 for temporary storage. The top of the side wall of the tank body 21 is connected to a cooling water supply pipe 26, the bottom of the side wall of the tank body 21 is connected to a cooling drainage pipe 25 and a circulating water supply pipe 23, the circulating water supply pipe 23 is connected to the emergency pump 4, and the cooling water supply pipe 26 and the cooling drainage pipe 25 are connected to a cooling water tank 28.

[0020] like Figure 3 Baffles 27 are arranged alternately on the opposite side walls of the desalted water tank 2, the desalted water flow channel is located between two adjacent baffles 27, the cooling water tank 28 vertically penetrates the baffles 27, and the top and bottom ends of the cooling water tank 28 are connected to the inner top wall and the inner bottom wall of the desalted water tank 2 respectively.

[0021] By staggeredly arranging baffles 27 in the desalted water tank 2, an S-shaped desalted water flow channel is formed. After the desalted water enters the top of the desalted water tank 2, the desalted water flows along the desalted water flow channel in a directional manner, thereby enabling continuous heat exchange.

[0022] As a preferred embodiment of the present invention, in order to increase the contact area between the desalted water and the cooling water tank 28 and improve the efficiency of heat exchange, the outer wall of the cooling water tank 28 is horizontally fixed with strip-shaped protrusions.

[0023] like Figure 3 As shown. The desalted water tank 2 and the cooling water tank 28 are both top-intake and bottom-drainage. The desalted water tank 2 is top-intaken through the circulating return water pipe 24 and bottom-drained through the damaged water supply pipe 25. The cooling water tank 28 is top-intaken through the cooling water supply pipe 26 and bottom-drained through the cooling drainage pipe 25. The water temperature of the desalted water tank 2 when draining is controlled to be equivalent to the water temperature of the cooling water tank 28 when draining. The approximate temperature of the desalted water drainage can be obtained by detecting the temperature of the cooling water drainage, which is convenient for adjusting the temperature of the desalted water by adjusting the cooling water flow rate.

Claims

1. A sulfuric acid main fan cooling water system, characterized in that: The invention comprises a desalted water station (1) and a main fan (3) connected to a water outlet pipe of the desalted water station (1); a desalted water tank (2) is further connected to the water outlet pipe of the desalted water station (1); a circulating water pipeline is connected between the desalted water tank (2) and the main fan (3); an emergency pump (4) is arranged on the circulating water pipeline; and an external cooling water pipeline is connected to the desalted water tank (2).

2. A sulfuric acid main fan cooling water system as claimed in claim 1, characterized in that: A cooling water tank (28) is fixedly arranged in the desalted water tank (2), the cooling water tank (28) is connected to the cooling water pipe, an S-shaped desalted water flow channel is arranged in the desalted water tank (2), the circulating water pipeline comprises a circulating water supply pipe (23) and a circulating water return pipe (24), the circulating water supply pipe (23) and the circulating water return pipe (24) are respectively connected to two ends of the desalted water flow channel, and the cooling water tank (28) runs through the desalted water flow channel.

3. A sulfuric acid main fan cooling water system as claimed in claim 2, characterized in that: Baffles (27) are arranged alternately on opposite side walls of the desalted water tank (2), the desalted water flow channel is located between two adjacent baffles (27), the cooling water tank (28) vertically penetrates the baffles (27), and the top and bottom ends of the cooling water tank (28) are respectively connected to the inner top wall and inner bottom wall of the desalted water tank (2).

4. A sulfuric acid main fan cooling water system as claimed in claim 3, characterized in that: The outer wall of the cooling water tank (28) is horizontally and fixedly provided with a strip-shaped protrusion.

5. A sulfuric acid main fan cooling water system according to any one of claims 2 to 4, characterized in that: The desalted water tank (2) and the cooling water tank (28) both have water inlet at the top and water outlet at the bottom.

Images