CN216813011U

CN216813011U - Fire-retardant breather valve convenient to dismouting

Info

Publication number: CN216813011U
Application number: CN202122362319.7U
Authority: CN
Inventors: 冯奇峰; 刘增强
Original assignee: Shanghai Jinzi Automation Instrument Co ltd
Current assignee: Shanghai Jinzi Automation Instrument Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-06-24
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a conveniently-disassembled fire-retardant breather valve which comprises a valve body, wherein a flange connecting seat is arranged at the bottom of the valve body, the valve body is connected with an external petrochemical storage tank through the flange connecting seat, and a detachable air balance structure is arranged on one side of the valve body; the disassembly of the internal structure of the valve body can be realized through the detachable air balance structure, the valve body is convenient to maintain, the disassembly difficulty is greatly reduced, the maintenance efficiency is improved, the labor force is reduced, and the reliability of long-term use of equipment is ensured.

Description

Fire-retardant breather valve convenient to dismouting

Technical Field

The utility model relates to the technical field of breather valves, in particular to a fire-retardant breather valve convenient to disassemble and assemble.

Background

Install back-fire relief breather valve on the oil storage tank generally utilizes spring limit valve plate, pressure balance in through the breather valve adjustment oil tank, thereby guarantee the safety of oil tank, the back-fire relief layer of current back-fire relief breather valve generally adopts the ripple to hinder the fire net, mainly constitute by a lot of tiny passageways or spaces, just form many tiny flames after flame gets into in the back-fire relief net, because the heat transfer area of passageway is big, the heat of flame carries out the heat exchange through the pipeline wall, carry out temperature cooling, just can extinguish flame after falling to the uniform temperature.

However, the fire retardant layer and the valve breathing mechanism in the existing fire retardant breather valve are difficult to disassemble and assemble and are not easy to disassemble, assemble, repair and maintain, so that the labor force for disassembling, assembling and maintaining is increased, and the fire retardant breather valve convenient to disassemble and assemble is designed

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the conveniently-disassembled fire-retardant breather valve, and solves the problems that the disassembly and assembly difficulty of a fire-retardant layer and a valve breathing mechanism in the existing fire-retardant breather valve is high, and the disassembly, assembly, maintenance and maintenance are not easy, so that the labor force for disassembly, assembly, maintenance and maintenance is increased.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a fire-retardant breather valve convenient to disassemble and assemble comprises a valve body, wherein a flange connecting seat is arranged at the bottom of the valve body, the valve body is connected with an external petrochemical storage tank through the flange connecting seat, and a detachable air balance structure is arranged on one side of the valve body;

the detachable gas balance structure comprises: the device comprises a shell, a pair of negative pressure air outlet holes, a pair of air outlet valves, a control assembly and an air inlet hole;

the casing sets up on the valve body, and a pair of negative pressure venthole is seted up respectively in the upper and lower both sides of casing, and a pair of air outlet valve sets up respectively at the top of a pair of negative pressure venthole, and control assembly sets up in the inside of casing, and control assembly is connected with a pair of air outlet valve, and the right side at the casing is seted up to the inlet port.

Preferably, the control assembly comprises: the four support frames, the support plate, the pair of sleeves, the pair of springs and the pair of valve rods are arranged;

the four support frames are respectively arranged inside the shell, the support plate is arranged on the four support frames, the pair of sleeves are respectively fixed at the top and the bottom of the support plate, the pair of springs are respectively arranged in the pair of sleeves, and the pair of valve rods are respectively inserted in the pair of sleeves and are respectively fixedly connected with the pair of springs.

Preferably, the right side of the inside of the shell is provided with a fireproof core.

Preferably, a sealing gasket is arranged at the joint of the shell and the valve body.

Preferably, the valve body and the shell are connected through bolts.

Preferably, the outer end of the shell is provided with a dustproof sleeve, and the dustproof sleeve is inserted on the shell.

Compared with the prior art, the conveniently-disassembled fire-retardant breather valve has the advantages that:

1. the disassembly of the internal structure of the valve body can be realized through the detachable air balance structure, the valve body is convenient to maintain, the disassembly difficulty is greatly reduced, the maintenance efficiency is improved, the labor force is reduced, and the reliability of long-term use of equipment is ensured.

2. The control assembly is arranged inside the shell, the shell can be detached together along with the control assembly, and convenience is brought to overhaul and maintenance.

Drawings

Fig. 1 is a front sectional structural view of a conveniently detachable fire-retardant breather valve.

Fig. 2 is a three-dimensional structure diagram of a support frame and a support plate of the conveniently-disassembled fire-retardant breather valve.

Fig. 3 is a partially enlarged structural view a of the conveniently detachable fire-retardant breather valve of the present invention.

In the figure: 1. a valve body; 2. a flange connecting seat; 3. a housing; 4. a negative pressure air outlet hole; 5. an air outlet valve; 6. an air intake; 7. a support frame; 8. a support plate; 9. a sleeve; 10. a spring; 11. a valve stem; 12. a fire-proof core; 13. a gasket; 14. a bolt; 15. a dust-proof cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a fire-retardant breather valve convenient to disassemble and assemble comprises a valve body 1, wherein a flange connecting seat 2 is arranged at the bottom of the valve body 1, the valve body 1 is connected with an external petrochemical storage tank through the flange connecting seat 2, and a detachable air balance structure is arranged on one side of the valve body 1;

it should be noted that, valve body 1 can realize the zonulae occludens with outside petrochemical industry storage tank through flange joint seat 2, improves sealed effect, places gaseous spilling, and through the dismantled and assembled gas balance structure who is equipped with, can be under the circumstances of realizing gas balance, be convenient for carry out the maintenance of equipment, be convenient for carry out the dismouting, dismantled and assembled gas balance structure contains: the device comprises a shell 3, a pair of negative pressure air outlet holes 4, a pair of air outlet valves 5, a control assembly and an air inlet hole 6; the shell 3 is arranged on the valve body 1, the pair of negative pressure air outlet holes 4 are respectively formed in the upper side and the lower side of the shell 3, the pair of air outlet valves 5 are respectively arranged at the tops of the pair of negative pressure air outlet holes 4, the control assembly is arranged inside the shell 3 and connected with the pair of air outlet valves 5, and the air inlet hole 6 is formed in the right side of the shell 3;

it should be noted that, the casing 3 is used for supporting the equipment parts that are located on it, and a pair of negative pressure venthole 4 and a pair of air outlet valve 5 mutually support with control assembly, realize inside and outside gaseous balance, and inlet port 6 is used for the transport of external gas, and control assembly contains: four support frames 7, a support plate 8, a pair of sleeves 9, a pair of springs 10 and a pair of valve rods 11; the four support frames 7 are respectively arranged in the shell 3, the support plate 8 is arranged on the four support frames 7, the pair of sleeves 9 are respectively fixed at the top and the bottom of the support plate 8, the pair of springs 10 are respectively arranged in the pair of sleeves 9, and the pair of valve rods 11 are respectively inserted in the pair of sleeves 9 and respectively fixedly connected with the pair of springs 10; it should be noted that, four supporting frames 7 are used for fixing a supporting plate 8, the supporting plate 8 is used for supporting a pair of sleeves 9, the pair of sleeves 9 is used for guiding and moving a pair of valve rods 11 under the action of a pair of springs 10, the pair of springs 10 is used for providing elastic force for the pair of valve rods 11, when the external pressure is greater than the internal pressure, the air outlet valve 5 at the top is jacked up, the external air enters the inside, when the pressure is balanced, the air outlet valve 5 at the top is driven by the valve rod 11 at the top to reset through the elastic force of the spring 10 at the top, when the external pressure is less than the internal pressure, the air outlet valve 5 at the bottom is jacked up, the internal air enters the outside, when the pressure is balanced, the air outlet valve 5 at the bottom is driven by the valve rod 11 at the bottom to reset through the elastic force of the spring 10 at the bottom, the fire-proof core 12 is arranged at the right side inside the housing 3, fire prevention core 12 is used for playing fire-retardant thermal-insulated effect, body 3 and the 1 junction of valve body are equipped with sealed pad 13, sealed pad 13 is used for improving sealed effect, guarantee the leakproofness, prevent gaseous leakage, connect through bolt 14 between valve body 1 and the casing 3, thereby be convenient for casing 3 follow dismantles on the valve body 1, be convenient for maintain, easy dismounting, casing 3 outer end is equipped with dirt proof boot 15, dirt proof boot 15 inserts and establishes on casing 3, dirt proof boot 15 is used for playing dirt-proof effect, and adopt to insert the mode on the arch of establishing at casing 3, also be convenient for dismantle the change.

The working principle is as follows: when using, be connected valve body 1 with outside petrochemical industry storage tank through flange joint seat 2 earlier, when external pressure is greater than internal pressure, the air outlet valve 5 that is located the top is by jack-up, the outside air enters into inside, when pressure balance, the air outlet valve 5 that is located the top is through the spring action of the spring 10 that is located the top, drive by the valve rod 11 that is located the top and reset, when external pressure is less than internal pressure, the air outlet valve 5 that is located the bottom is by jack-up, the inside air enters into the external world, when pressure balance, the air outlet valve 5 that is located the bottom is through the spring action of the spring 10 that is located the bottom, drive by the valve rod 11 that is located the below and reset. When the maintenance is needed, the dustproof sleeve 15 is firstly pulled out of the shell 3, then the bolt 14 is screwed off, and the shell 3 can be detached from the valve body 1, so that the detaching efficiency is improved, and the maintenance speed is increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The fire-retardant breather valve convenient to disassemble and assemble comprises a valve body (1) and is characterized in that a flange connecting seat (2) is arranged at the bottom of the valve body (1), the valve body (1) is connected with an external petrochemical storage tank through the flange connecting seat (2), and a detachable gas balance structure is arranged on one side of the valve body (1);

the detachable gas balance structure comprises: the device comprises a shell (3), a pair of negative pressure air outlet holes (4), a pair of air outlet valves (5), a control assembly and an air inlet hole (6);

casing (3) set up on valve body (1), it is a pair of negative pressure venthole (4) are seted up respectively the upper and lower both sides of casing (3), it is a pair of air outlet valve (5) set up respectively a pair of the top of negative pressure venthole (4), control assembly sets up the inside of casing (3), control assembly is with a pair of air outlet valve (5) are connected, inlet port (6) are seted up the right side of casing (3).

2. A fire retardant breather valve convenient to disassemble and assemble as claimed in claim 1, wherein: the control assembly includes: the device comprises four support frames (7), a support plate (8), a pair of sleeves (9), a pair of springs (10) and a pair of valve rods (11);

the four support frames (7) are respectively arranged inside the shell (3), the support plates (8) are arranged on the four support frames (7), the pair of sleeves (9) are respectively fixed at the top and the bottom of the support plates (8), the pair of springs (10) are respectively arranged in the pair of sleeves (9), and the pair of valve rods (11) are respectively inserted in the pair of sleeves (9) and are respectively fixedly connected with the pair of springs (10).

3. A fire retardant breather valve convenient to disassemble and assemble as claimed in claim 1, wherein: the right side in the shell (3) is provided with a fireproof core (12).

4. A fire retardant breather valve convenient to disassemble and assemble as claimed in claim 1, wherein: and a sealing gasket (13) is arranged at the joint of the shell (3) and the valve body (1).

5. A fire retardant breather valve convenient to disassemble and assemble as claimed in claim 1, wherein: the valve body (1) and the shell (3) are connected through a bolt (14).

6. A fire retardant breather valve convenient to disassemble and assemble as claimed in claim 1, wherein: the dustproof cover (15) is arranged at the outer end of the shell (3), and the dustproof cover (15) is inserted on the shell (3).