CN204852759U - Drainage device that leaks of valve drenches - Google Patents

Abstract

The utility model provides a water leakage drainage device for a deluge valve. The water inlet of the deluge valve is connected to the fire-fighting water pipe through the first normally open valve, and the water outlet of the deluge valve is connected with a U-shaped steel pipe. The opening of the U-shaped steel pipe faces upward. The rear end of the U-shaped steel pipe is connected to the protected equipment through the first normally open valve, the bottom of the U-shaped steel pipe is connected to the drainage pipe, and the second normally open valve and the electric valve are arranged on the drainage pipe. In the utility model, a U-shaped steel pipe is arranged between the deluge valve and the protected equipment. The U-shaped steel pipe has a slow flow function due to its own potential energy difference. The inner leakage water caused by the damaged seal of the valve is led away, so as to avoid the damage caused by the inner leakage water to the protected object of the automatic water spray fire extinguishing system.

Description

Leakage drainage device for deluge valve

technical field

The utility model relates to the application field of a deluge valve.

Background technique

Deluge valves are widely used in automatic water spray fire extinguishing systems. Usually, deluge valves will leak water due to seal damage or aging. Internal leakage may damage the protected objects of the water spray fire extinguishing system. For example, in the generator water spray fire extinguishing system of the power station, when there is no fire, if the deluge valve leaks internally, it will cause damage to the generator components.

Contents of the invention

The technical problem to be solved by the utility model is to provide a water leakage and drainage device for the deluge valve, which can prevent the water leakage in the deluge valve from flowing into the protected equipment, and avoid the damage to the protected equipment caused by the water leakage in the deluge valve.

The technical solution adopted by the utility model to solve the technical problem is: a leakage drainage device for a deluge valve, including a deluge valve, the deluge valve is arranged horizontally, and the water inlet of the deluge valve passes through the first normally open valve Connect the fire water pipe, the outlet of the deluge valve is connected to a U-shaped steel pipe, the opening of the U-shaped steel pipe faces upward, and the rear end of the U-shaped steel pipe is connected to the protected equipment through the first normally open valve. The bottom of the shaped steel pipe is connected with a drainage pipe, and the second normally open valve and an electric valve are arranged on the said drainage pipe.

While adopting the above-mentioned technical solution, the utility model can also adopt or adopt the following further technical solutions in combination:

The deluge valve and electric valve are connected to the fire alarm controller.

The outlet of the drainage pipe leads to the ground drainage ditch.

The beneficial effects of the utility model are: the utility model sets a U-shaped steel pipe between the deluge valve and the protected equipment. The U-shaped steel pipe has a slow flow function due to its own potential energy difference. The drainage pipe can quickly drain away the inner leakage water caused by the damaged seal of the deluge valve, so as to avoid the damage caused by the inner leakage water to the protected object of the automatic water spray fire extinguishing system.

Description of drawings

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

Detailed ways

Refer to attached picture.

The leakage and drainage device of the present utility model includes a deluge valve 3, which is arranged horizontally, and its water inlet and outlet are on the same horizontal line, and the water inlet of the deluge valve 3 is connected to the fire water pipe 1 through a first normally open valve 2 , the water outlet of the deluge valve 3 is connected with a U-shaped steel pipe 4, the U-shaped opening of the U-shaped steel pipe 4 faces upwards, and the bottom of the U-shaped steel pipe 4 can be used to pocket water, and the rear end of the U-shaped steel pipe 4 is connected to the To protect the equipment, the bottom of the U-shaped steel pipe 4 is connected to the drainage pipe 5, and the drainage pipe 5 is provided with an electric valve 6 and a second normally open valve 7, and the drainage pipe behind the second normally open valve 7 is connected to the ground drainage ditch.

In order to realize automatic control, the deluge valve 3 and the electric valve 6 can be connected to the fire alarm controller.

The drainage method of the present utility model is as follows:

a. When there is no fire, when the deluge valve 3 leaks due to seal damage, the leaked water will be collected at the bottom of the U-shaped steel pipe 4 due to gravity, and will be discharged to the ground drainage ditch after the drainage pipe 5.

b. When a fire occurs, the deluge valve 3 opens immediately after receiving the signal from the fire alarm system; at the same time, the normally closed electric valve 6 closes immediately after receiving the fire signal to prevent the fire water from diverting from the drainage pipe 5. The deluge valve 3 and the electric valve 6 can also be controlled manually.

Claims (3)

1. the drainage system that leaks of a drench valve; comprise drench valve; it is characterized in that: described drench valve horizontal arrangement; the water intake of described drench valve connects fire-prevention pipe by normally open valve door; the water outlet of described drench valve connects a U-shaped steel pipe, and described U-shaped steel pipe is opening up, and the rear end of described U-shaped steel pipe is connected to protected equipment by normally open valve door; the bottom of described U-shaped steel pipe connects drainage tube, and described drainage tube is provided with normally open valve door and electric valve.

2. the drainage system that leaks of a kind of drench valve as claimed in claim 1, is characterized in that: described drench valve and electric valve are connected to Fire alarm control unit.

3. the drainage system that leaks of a kind of drench valve as claimed in claim 1, is characterized in that: the outlet of described drainage tube passes to land drain.