CN203335961U

CN203335961U - Pipeline fireproof device

Info

Publication number: CN203335961U
Application number: CN2013203840882U
Authority: CN
Inventors: 吴朋林; 陶鑫; 乐章程
Original assignee: SHANGHAI BOLONG POWDER ENGINEERING Co Ltd
Current assignee: Shanghai Bolong Equipment Technology Co ltd
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2013-12-11
Anticipated expiration: 2023-06-25

Abstract

A pipeline fireproof device comprises a valve body, a fixing box and a fusing-off pin. The valve body comprises a connecting tube body and connecting flanges at the two ends of the connecting tube body. An opening is formed in the upper portion of a tube body of the connecting tube body in the radial direction. The fixing box is arranged at the opening of the tube body of the connecting tube body of the valve body. An opening is formed in the lower end of the fixing box. The lower end of the fixing box is in closed connection fit with the tube body of the connecting tube body. The top of the fixing box is provided with a detachable or openable end cover. A sliding plate is arranged in the fixing box and is matched with the tube diameter of the connecting tub e body and the opening of the tube body of the connecting tube body. Guide plates capable of clamping and limiting the sliding plate are arranged on the two opposite sides of the inner wall of the fixing box, thus, the sliding plate moves downward from the opening of the tube body along the guide plates to cut off the connecting tube body. The fusing-off pin is arranged in the opening of the tube body of the connecting tube body of the valve body and is located at the lower end of the sliding plate. The sliding plate is normally in an open state in a pipeline,when the temperature of the pipeline reaches 70 DEG C, the fusing-off pin is fused off, the sliding plate quickly and automatically closes under the action of self-gravity, so that the purpose of preventing fire of the pipeline is achieved. According to the pipeline fireproof device, a valve can close automatically, manual operation is not needed, noise does not exist, and automatic control can be realized easily.

Description

The pipeline refractory protection

Technical field

The utility model relates to refractory protection, particularly a kind of pipeline refractory protection.

Background technique

Along with the domestic petroleum chemical industry, the emergence of Coal Chemical Industry and large space building, the application of pipeline fire prevention system is more and more, and refractory protection is an important constituent element in pipe-line system, is the important equipment that guarantees pipe safety.To exist valve switch dumb for domestic pipeline refractory protection now, to the shortcoming such as the induction of temperature is insensitive.

Summary of the invention

The purpose of this utility model is to provide a kind of pipeline refractory protection, high to the pipe temperature induction sensitivity, and valve closing is swift in motion steadily, the advantages such as noise free.

For reaching the speed per hour purpose, the technical solution of the utility model is:

The pipeline refractory protection, it comprises, valve body comprises the adpting flange that connects body and two ends thereof; Connect body pipe shaft top and radially offer an opening; Fixing box, be arranged at the pipe shaft opening that described valve body connects body, the fixing box lower ending opening and with is connected the airtight connection of body pipe shaft and coordinates, the fixing box top is one detachably or the openable end cap; Establish a slide plate in fixing box, this slide plate be connected the body caliber and the pipe shaft opening is complementary; The both sides that the fixing box inwall is relative are established and can be clamped, the guide plate of limit skateboard, and described slide plate moves downward to cut off along guide plate, from the pipe shaft opening with this and connects body; The fusing pin, be arranged at the lower end that described valve body connects body pipe shaft opening, is positioned at slide plate.

Further, an installation through hole worn for the fusing pin is established in described fixing box inner guide plate bottom.

Slide plate is normally in opening state in pipeline, and when pipe temperature reaches 70 ℃, the fusing pin fuses, and slide plate is automatically closed rapidly under self-gravity action, plays pipeline frpf purpose.The utility model valve is closed automatically, and without manual operation, noise free, easily realize automation control.

The utility model long service life, the fusing of fusing pin, after valve closing, only need to change the fusing pin, and valve can continue to use.

The accompanying drawing explanation

Fig. 1 is the structural representation of the utility model pipeline refractory protection;

Fig. 2 is the sectional view of the utility model pipeline refractory protection.

Embodiment

Referring to Fig. 1, Fig. 2, pipeline refractory protection of the present utility model, it comprises, valve body 1 comprises the adpting flange 12 that connects body 11 and two ends thereof; Connect body 11 pipe shaft tops and radially offer an opening 101; Fixing box 2, be arranged at pipe shaft opening 101 places that described valve body 1 connects body 11, fixing box 2 lower ending openings and with is connected the airtight connection of body 11 pipe shaft and coordinates, fixing box 2 tops are one detachably or the openable end cap; Establish a slide plate 3 in fixing box 2, this slide plate 3 be connected body 11 calibers and pipe shaft opening and be complementary; The both sides that fixing box 2 inwalls are relative are established and can be clamped, the guide plate 21 of limit skateboard 3, and described slide plate 3 moves downward along guide plate 21, from pipe shaft opening 101 places with this to cut off and connects body 11; Fusing pin 4, be arranged at the lower end that described valve body 1 connects body 11 pipe shaft opening 101 places, is positioned at slide plate 3.

Further, an installation through hole 211 worn for the fusing pin is established in described fixing box 2 inner guide plate 21 bottoms.

When in pipeline, temperature reaches the fire good ignition temperature, the fusing pin fusing under slide plate, slide plate is automatically closed under the effect from gravity.Valve closing is rapid, and temperature sense is sensitive, without jam phenomenon, noise free, safe and reliable.

Claims

1. the pipeline refractory protection, is characterized in that, comprise,

Valve body, comprise the adpting flange that connects body and two ends thereof; Connect body pipe shaft top and radially offer an opening;

Fixing box, be arranged at the pipe shaft opening that described valve body connects body, the fixing box lower ending opening and with is connected the airtight connection of body pipe shaft and coordinates, the fixing box top is one detachably or the openable end cap; Establish a slide plate in fixing box, this slide plate be connected the body caliber and the pipe shaft opening is complementary; The both sides that the fixing box inwall is relative are established and can be clamped, the guide plate of limit skateboard, and described slide plate moves downward to cut off along guide plate, from the pipe shaft opening with this and connects body;

The fusing pin, be arranged at the lower end that described valve body connects body pipe shaft opening, is positioned at slide plate.

2. pipeline refractory protection as claimed in claim 1, is characterized in that, an installation through hole worn for the fusing pin is established in described fixing box inner guide plate bottom.