CN201327267Y - Water seal for spray drying tower - Google Patents

Abstract

The utility model discloses a water seal for a spray drying tower. An inner cylindrical shell (1) is arranged on an outer cylindrical shell (3), the upper end of the inner cylindrical shell (1) is communicated with air and is provided with a water inlet pipe (9), the lower end is extended to the position close to the bottom of the outer cylindrical shell (3), a vent pipeline (4) is mounted on the upper portion of the outer cylindrical shell (3), one end of a circulation pipeline (2) is communicated with the outer cylindrical shell (3), the other end of the circulation pipeline (2) is connected with the inner cylindrical shell (1), an overflow port (8) is disposed on the circulation pipeline (2), and a liquid level meter and a liquid level controller (7) are mounted on the outer cylindrical shell (3). The utility model is a water seal for a spray drying tower with simple structure, high reliability and good safety performance.

Description

Water seal for a spray drying tower

technical field

The utility model relates to a water seal, in particular to a protection water seal for system pressure in spray drying equipment.

technical background

At present, spray drying equipment is widely used in metallurgy, food, medicine, chemical industry and other fields, but this kind of equipment has a large volume and large air volume, and it is very difficult to balance the air pressure in the system and protect the pressure. Lacking a certain degree of sensitivity and reliability, there has been no safe and reliable device, which has led to many accidents in the industry due to improper pressure control.

Utility model content

The technical problem to be solved by the utility model is to provide a water seal for the spray drying tower with simple structure, high reliability and good safety.

In order to solve the above technical problems, the spray drying tower provided by the utility model is water-sealed, and an inner cylinder is provided on the outer cylinder. The upper end of the inner cylinder communicates with the atmosphere and is provided with a water inlet pipe. At the bottom of the outer cylinder, an exhaust pipe is arranged on the upper part of the outer cylinder, one end of the circulation pipe is connected with the outer cylinder, and the other end is connected with the inner cylinder, and the circulation pipe is provided with There is an overflow port, and the outer cylinder is provided with a liquid level gauge and a liquid level controller.

The liquid level gauge is a quartz tube type liquid level gauge.

The water seal of the spray drying tower adopting the above-mentioned technical scheme can carry out two-way protection of positive pressure and negative pressure of the system. When the system is over-pressurized, the set pressure difference is reached, and the gas in the system is released from the bottom of the inner cylinder; when the system is under-pressurized, the set pressure difference is reached, and the outside air enters the system through the water seal to achieve the balance of internal and external pressure. The liquid level controller can realize the stability of the liquid level in the water seal. When it is lower than the design water level, the system will automatically replenish water. When it is higher than the design water level, the system will automatically overflow. The positive and negative pressure difference can be set through structural design, and will not fail due to power failure, operation error and other reasons.

In summary, the utility model is a water seal for a spray drying tower with simple structure, high reliability and good safety.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural top view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Referring to Figures 1 and 2, an inner cylinder 1 is provided on the outer cylinder 3, the upper end of the inner cylinder 1 communicates with the atmosphere and is provided with a water inlet pipe 9, and the lower end extends close to the bottom of the outer cylinder 3, and on the upper part of the outer cylinder 3 There is an exhaust pipe 4, one end of the circulation pipe 2 communicates with the outer cylinder 3, and the other end connects with the inner cylinder 1, the circulation pipe 2 is provided with an overflow port 8, and the outer cylinder 3 is provided with a quartz tube type liquid level gauge 6 and liquid level controller 7.

Referring to Figures 1 and 2, the exhaust pipe 4 is connected to the spray drying tower through the connecting pipe 5. Before the equipment is started, the water inlet valve is opened, and the water enters the outer cylinder 3 through the water inlet pipe 9. The water valve is closed. The utility model can carry out two-way protection of system positive pressure and negative pressure. According to the limit pressure of system overpressure and underpressure, the water seal is structurally designed. The highest positive pressure inside the system, the height at which the liquid level reaches the lowest point at the inlet of the exhaust pipe 4 determines the maximum negative pressure that the water seal can withstand. When the system is over-pressurized, the set pressure difference is reached, and the gas in the system is released from the bottom of the inner cylinder 1; when the system is under-pressurized, the set pressure difference is reached, and the outside gas enters the system through the water-sealed inner cylinder 1 , to achieve the balance of internal and external pressure.

The quartz tube liquid level gauge 6 can indicate the liquid level of the outer cylinder 3, and the liquid level controller 7 can realize the stability of the liquid level inside the water seal. When the water level is lower than the design water level, the system will automatically replenish water; overflow.

Claims (2)

1, a kind of spray drying tower water seal, it is characterized in that: on outer cylinder body (3), be provided with inner barrel (1), described inner barrel (1) upper end is communicated with atmosphere and is provided with water inlet pipe (9), the lower end extends near described outer cylinder body (3) bottom, be provided with discharge duct (4) on the top of described outer cylinder body (3), circulating line (2) one ends are communicated with described outer cylinder body (3), the other end is connected with described inner barrel (1), described circulating line (2) is provided with gap (8), and described outer cylinder body (3) is provided with liquid level gauge and fluid level controller (7).

2, spray drying tower water seal according to claim 1 is characterized in that: described liquid level is counted quartz tube type liquid level gauge (6).

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