CN211599654U

CN211599654U - Mechanical pressure release valve for fire-fighting collecting pipe

Info

Publication number: CN211599654U
Application number: CN202020055326.5U
Authority: CN
Inventors: 丁贤兵
Original assignee: Suzhou Kesai Precision Machinery Co ltd
Current assignee: Suzhou Kesai Precision Machinery Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-29
Anticipated expiration: 2030-01-10

Abstract

The utility model belongs to the field of fire fighting systems, in particular to a mechanical pressure release valve for a fire fighting collecting pipe, which comprises a valve seat (1), a valve body (2), a valve cover (3), a medium inlet channel (11), a medium outlet channel (12), a silencer (13), an auxiliary fixing nut (14), a T-shaped column (21), a limiting block (22), a pressure gauge (31), a screw cap (32), a screw body (33), a pressure sensor (34), a spring (35), an elastic gasket (211), a wireless signal transmitter (311) and an auxiliary fixing nut (14); the utility model discloses the structure is ingenious, and is sturdy and durable, has good corrosion resisting property, and installation, use and regulation are convenient.

Description

Mechanical pressure release valve for fire-fighting collecting pipe

Technical Field

The utility model belongs to the fire extinguishing system field specifically discloses a mechanical type relief valve for fire control pressure manifold.

Background

The pressure relief valve, also called as a pressure relief valve, is an opening and closing member, is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline is increased to exceed a specified value, the medium is discharged to the outside of a system to prevent the pressure of the medium in the pipeline or the equipment from exceeding a specified value. The pressure relief valve belongs to the automatic valve class, is mainly used on boiler, pressure vessel and pipeline, and control pressure does not exceed the specified value, plays important guard action to personal safety and equipment operation.

The structure of the pressure release valve mainly has two main types: spring type and lever type. The spring type means that the sealing of the valve clack and the valve seat is against the acting force of the spring. The lever type is realized by the acting force of a lever and a heavy hammer. The spring-operated pressure relief valve utilizes the force of a compression spring to balance the force acting on the valve flap. The compression amount of the spiral ring-shaped spring can be adjusted by rotating an adjusting nut on the spring micro-opening type pressure release valve, and the opening of the pressure release valve can be corrected according to the requirement by using the structure. At present, in the field of fire fighting, pressure relief valves are generally required to be installed on collecting pipes, but many existing fire extinguishing agents are corrosive, such as protein foam fire extinguishing agents and fluorinated protein fire extinguishing agents which are commonly used in oil fields and chemical enterprises, and the pressure relief valves in the collecting pipes are prone to corrosion, so that failure or other serious consequences are caused, and heavy pressure is brought to daily maintenance.

SUMMERY OF THE UTILITY MODEL

To above not enough, the utility model discloses a mechanical type relief valve for fire control pressure manifold.

The technical scheme of the utility model as follows:

a mechanical pressure release valve for a fire-fighting collecting pipe is characterized by comprising a valve seat, a valve body and a valve cover from bottom to top; the valve seat comprises a medium inlet channel vertically protruding out of the bottom of the valve seat and a medium outlet channel arranged on the side surface of the valve seat, and the medium inlet channel is vertically communicated with the medium outlet channel; the valve body comprises a T-shaped column and a limiting block; the lower end of the T-shaped column is plugged into the medium inlet channel; the limiting block is positioned on the inner wall of the valve body, and the distance between the limiting block and the top end of the T-shaped column is smaller than the length of the T-shaped column plugged into the medium inlet channel; the valve cover comprises a pressure gauge, a screw cap, a screw body, a pressure sensor and a spring; the rotary cap is a cylindrical cap, the rotary body integrally formed below the rotary cap is a cylinder, and the side surface of the rotary cap is provided with threads and can be screwed into the valve body; the spring is fixed at the lower end of the rotary body, and the lower end of the spring penetrates through the limiting block and abuts against the upper end of the T-shaped column; the pressure sensor is arranged on one side of the rotating body, which is in contact with the spring; the pressure gauge is arranged on the upper surface of the screw cap; the pressure gauge is electrically connected with the pressure sensor; and the inner walls of the pressure release valves are coated with anticorrosive coatings. When the pressure relief valve is installed and tested, the screw cap of the valve cover is adjusted, the length of the screw body extending into the valve body is controlled, the tightness of the spring is further controlled, pressure is set, and the pressure is displayed on the pressure gauge through detection of the pressure sensor. When the pressure in the collecting pipe is too high, the T-shaped column is upwards jacked up in the upward jacking medium inlet channel by the medium, the medium outlet channel is exposed, and the medium is released out of the valve body through the medium outlet channel, so that the effect of safe pressure relief is achieved.

Further, the mechanical pressure relief valve for the fire-fighting collecting pipe is characterized in that an elastic gasket is arranged on the lower edge of the column cap of the T-shaped column. Set up the resilient pad, under the not big condition of pressure manifold pipeline, can be completely with the medium shutoff, and can not gush into valve body inside from the gap between T cylinder and the medium inlet passage.

Further, the valve body of the mechanical pressure relief valve for the fire-fighting collecting pipe is made of stainless steel; the anticorrosive coating is polytetrafluoroethylene. The stainless steel material is firm and durable, and easy to manufacture, and the polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance and various organic solvents resistance.

Further, the mechanical pressure relief valve for the fire-fighting collecting pipe is provided with stripes for increasing friction force on the turncap. The friction force can be increased by arranging the stripes, and the adjustment of the screw cap is convenient.

Further, according to the mechanical pressure release valve for the fire-fighting collecting pipe, lubricating oil is coated on the part, plugged into the medium inlet channel, of the lower end of the T-shaped column. The lubricating oil is coated to facilitate the up-and-down movement of the lower end of the T-shaped column in the medium inlet channel, and the effects of some oil seals can be achieved.

Further, the pressure gauge is a digital OLED display pressure gauge.

Further, the mechanical pressure relief valve for the fire-fighting collecting pipe is also provided with a wireless signal transmitter beside the pressure gauge.

Further, the mechanical pressure relief valve for the fire-fighting collecting pipe is characterized in that a silencer is arranged at the outlet of the medium outlet channel.

Further, in the mechanical pressure relief valve for a fire fighting collecting pipe, the outer surface of the part of the medium inlet channel protruding out of the valve seat is provided with threads. The thread design can make things convenient for the relief valve to pass through on the helicitic texture installs the pressure manifold.

Further, the valve seat of the mechanical pressure relief valve for the fire-fighting collecting pipe is also provided with an auxiliary fixing nut.

According to the above technical scheme, the utility model discloses following beneficial effect has:

the utility model has the advantages of ingenious structure, firmness, durability, easy manufacture, excellent corrosion resistance and convenient installation, use and adjustment; the pressure monitoring valve has the advantages that the manufacturing cost is low, the pressure in the valve can be monitored in real time through the wireless signal module, the safety and the reliability are realized, the connection of cables is avoided, and the pressure monitoring valve is suitable for large-scale application in a complex fire-fighting system.

Drawings

Fig. 1 is a schematic view of the whole of a pressure relief valve in embodiment 1;

fig. 2 is a schematic view of the whole of the pressure relief valve in embodiment 2;

FIG. 3 is an enlarged view of a portion of a T-shaped column in example 2;

wherein: 1 valve seat, 2 valve body, 3 valve cover, 11 medium inlet channel, 12 medium outlet channel, 13 silencer, 14 auxiliary fixing nut, 21T-shaped column, 22 limited block, 31 pressure gauge, 32 screw cap, 33 screw body, 34 pressure sensor, 35 spring, 211 elastic gasket, 311 wireless signal transmitter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the mechanical pressure relief valve for a fire-fighting collecting pipe comprises a valve seat 1, a valve body 2 and a valve cover 3 from bottom to top; the valve seat 1 comprises a medium inlet channel 11 vertically protruding out of the bottom of the valve seat 1 and a medium outlet channel 12 arranged on the side surface of the valve seat 1, and the medium inlet channel 11 is vertically communicated with the medium outlet channel 12; the valve body comprises a T-shaped column 21 and a limiting block 22; the lower end of the T-shaped column 21 is plugged into the medium inlet channel 11; the limiting block 22 is positioned on the inner wall of the valve body 2, and the distance between the limiting block 22 and the top end of the T-shaped column 21 is less than the length of the T-shaped column 21 plugged into the medium inlet channel 11; the valve cover 3 comprises a pressure gauge 31, a screw cap 32, a screw body 33, a pressure sensor 34 and a spring 35; the screw cap 32 is a cylindrical cap, the screw body 33 integrally formed below the cap is a cylinder, and the side surface of the screw body is provided with threads and can be screwed into the valve body 2; the spring 35 is fixed at the lower end of the rotary body 33, and the lower end of the spring 35 passes through the limiting block 22 and abuts against the upper end of the T-shaped column 21; the pressure sensor 34 is arranged at one side of the rotary body 33 contacting with the spring 35; the pressure gauge 31 is arranged on the upper surface of the screw cap 32; the pressure gauge 31 is electrically connected with the pressure sensor 34; and the inner walls of the pressure release valves are coated with anticorrosive coatings.

When in work: when the pressure relief valve is installed and tested, the screw cap of the valve cover 3 is adjusted, the length of the screw body 33 extending into the valve body 2 is controlled, the tightness of the spring 35 is further controlled, pressure is set, and the pressure is detected through the pressure sensor 34 and displayed on the pressure gauge 31. When the pressure in the collecting pipe is overlarge, the T-shaped column 21 is upwards jacked up in the upward jacking medium inlet channel 11 by the medium, the medium outlet channel 12 is exposed, and the medium is released out of the valve body through the medium outlet channel 12 to play a role in safety pressure relief.

Example 2

As shown in fig. 2 and 3, the mechanical pressure relief valve for the fire-fighting collecting pipe comprises a valve seat 1, a valve body 2 and a valve cover 3 from bottom to top; the valve seat 1 comprises a medium inlet channel 11 vertically protruding out of the bottom of the valve seat 1 and a medium outlet channel 12 arranged on the side surface of the valve seat 1, and the medium inlet channel 11 is vertically communicated with the medium outlet channel 12; the valve body comprises a T-shaped column 21 and a limiting block 22; the lower edge of the cap of the T-shaped column 21 is provided with an elastic gasket 211; the lower end of the T-shaped column 21 is plugged into the medium inlet channel 11; the limiting block 22 is positioned on the inner wall of the valve body 2, and the distance between the limiting block 22 and the top end of the T-shaped column 21 is less than the length of the T-shaped column 21 plugged into the medium inlet channel 11; the valve cover 3 comprises a pressure gauge 31, a screw cap 32, a screw body 33, a pressure sensor 34 and a spring 35; the screw cap 32 is a cylindrical cap, the screw body 33 integrally formed below the cap is a cylinder, and the side surface of the screw body is provided with threads and can be screwed into the valve body 2; the spring 35 is fixed at the lower end of the rotary body 33, and the lower end of the spring 35 passes through the limiting block 22 and abuts against the upper end of the T-shaped column 21; the pressure sensor 34 is arranged at one side of the rotary body 33 contacting with the spring 35; the pressure gauge 31 is arranged on the upper surface of the screw cap 32; the pressure gauge 31 is electrically connected with the pressure sensor 34; the inner walls of the pressure release valves are coated with anticorrosive coatings; in particular, the valve body 2 is made of stainless steel; the anticorrosive coating is polytetrafluoroethylene; furthermore, the screw cap 32 is provided with stripes for increasing friction force; particularly, the part of the lower end of the T-shaped column 21, which is plugged into the medium inlet channel 11, is coated with lubricating oil; it is noted that the pressure gauge 31 is a digital OLED display pressure gauge; particularly, a wireless signal emitter 311 is arranged beside the pressure gauge 31; further, a silencer 13 is arranged at the outlet of the medium outlet channel 12; preferably, the valve seat 1 is also provided with an auxiliary fixing nut 14.

When in work: when the pressure relief valve is installed and tested, the screw cap of the valve cover 3 is adjusted, the length of the screw body 33 extending into the valve body 2 is controlled, the tightness of the spring 35 is further controlled, the pressure is set, and the pressure is detected by the pressure sensor 34 and displayed on the pressure gauge 31; when the pressure in the collecting pipe is too high, the medium jacks up the T-shaped column 21 in the medium inlet channel 11 upwards to expose the medium outlet channel 12, the medium is released out of the valve body through the medium outlet channel 12, and the noise reduction treatment is carried out on the noise generated during pressure relief through the silencer 13;

the above is only a preferred embodiment of the present invention, and the protection scope of the present invention can not be limited thereby, and the simple equivalent changes and modifications made according to the claims and the utility model also belong to the protection scope of the present invention.

Claims

1. A mechanical pressure release valve for a fire-fighting collecting pipe is characterized by comprising a valve seat (1), a valve body (2) and a valve cover (3) from bottom to top; the valve seat (1) comprises a medium inlet channel (11) vertically protruding out of the bottom of the valve seat (1) and a medium outlet channel (12) arranged on the side surface of the valve seat (1), and the medium inlet channel (11) is vertically communicated with the medium outlet channel (12); the valve body comprises a T-shaped column (21) and a limiting block (22); the lower end of the T-shaped column (21) is plugged into the medium inlet channel (11); the limiting block (22) is positioned on the inner wall of the valve body (2), and the distance between the limiting block (22) and the top end of the T-shaped column (21) is less than the length of the T-shaped column (21) plugged into the medium inlet channel (11); the valve cover (3) comprises a pressure gauge (31), a screw cap (32), a screw body (33), a pressure sensor (34) and a spring (35); the screw cap (32) is a cylindrical cap, a screw body (33) which is integrally formed below the cap is a cylinder, the side surface of the screw body is provided with threads, and the screw body can be screwed into the valve body (2); the spring (35) is fixed at the lower end of the rotary body (33), and the lower end of the spring (35) penetrates through the limiting block (22) and abuts against the upper end of the T-shaped column (21); the pressure sensor (34) is arranged on one side of the rotating body (33) contacting with the spring (35); the pressure gauge (31) is arranged on the upper surface of the screw cap (32); the pressure gauge (31) is electrically connected with the pressure sensor (34); and the inner walls of the pressure release valves are coated with anticorrosive coatings.

2. The mechanical pressure relief valve for a fire fighting collecting main according to claim 1, characterized in that the lower edge of the cap of the T-shaped column (21) is provided with an elastic gasket (211).

3. A mechanical pressure relief valve for fire fighting collecting main according to claim 1, characterized in that the valve body (2) is stainless steel; the anticorrosive coating is polytetrafluoroethylene.

4. A mechanical pressure relief valve for a fire fighting manifold as defined in claim 1 wherein the turncap (32) is provided with friction enhancing striations.

5. Mechanical pressure relief valve for fire fighting manifolds according to claim 1 characterized in that the part of the lower end of the T-post (21) that plugs into the media inlet channel (11) is coated with lubricating oil.

6. A mechanical pressure relief valve for fire fighting manifolds according to claim 1 characterized in that the pressure gauge (31) is a digital OLED display pressure gauge.

7. A mechanical pressure relief valve for fire fighting manifolds as defined in claim 1 wherein a wireless signal transmitter (311) is provided next to the pressure gauge (31).

8. A mechanical pressure relief valve for a fire fighting collecting main according to claim 1, characterized in that the medium outlet channel (12) outlet is provided with a silencer (13).

9. Mechanical pressure relief valve for fire fighting manifolds according to claim 1, characterized in that the outer surface of the part of the media inlet channel (11) protruding the valve seat (1) is threaded.

10. Mechanical pressure relief valve for fire fighting manifolds according to claim 1 characterized in that the valve seat (1) is also provided with an auxiliary fixing nut (14).