阅读说明：本技术 一种密封性好的油罐阻火压力阀 (Oil tank fire-retardant pressure valve that leakproofness is good ) 是由 王康 于 2020-12-21 设计创作，主要内容包括：本发明一种密封性好的油罐阻火压力阀,包括阀体、阀盖、真空压力帽和阻火器,所述空压力帽置于阀体的上部,所述阻火器的置于阀体的下部,所述阀盖置于阀体的顶端,所述阀体的内部设有导杆和导杆座,所述导杆置于导杆座的内部,所述导杆与导杆座滑动连接,所述导杆的顶端固定设有阀盘,所述阀盘的底端设有支撑环,所述阀盘与所述支撑环卡接,所述支撑环与阀体的内壁固定,所述阀盘的顶端中间位置固定设有阀杆,所述阀杆与所述阀盘的连接处设有第一密封圈,所述杆座的外壁套接有弹簧,本发明可以将储油罐与外界隔离,防止气态油品外跑和外界意外火源进入储油罐具有节能、环保、安全防火等优点,同时一体式设计密封性好。(The invention relates to an oil tank fire-retardant pressure valve with good sealing performance, which comprises a valve body, a valve cover, a vacuum pressure cap and a fire arrester, wherein the hollow pressure cap is arranged at the upper part of the valve body, the fire arrester is arranged at the lower part of the valve body, the valve cover is arranged at the top end of the valve body, a guide rod and a guide rod seat are arranged inside the valve body, the guide rod is arranged inside the guide rod seat and is in sliding connection with the guide rod seat, a valve disc is fixedly arranged at the top end of the guide rod, a support ring is arranged at the bottom end of the valve disc and is clamped with the support ring, the support ring is fixed with the inner wall of the valve body, a valve rod is fixedly arranged in the middle of the top end of the valve disc, a first sealing ring is arranged at the joint of the valve rod and the valve disc, and a spring is sleeved on the outer wall of the rod seat Environmental protection, safe fire prevention etc. advantage, the leakproofness is good in the integral type design simultaneously.)

1. The oil tank fire-retardant pressure valve with good sealing performance is characterized by comprising a valve body (1), a valve cover (4), a vacuum pressure cap (2) and a flame arrester (3), wherein the upper part of the valve body (1) is arranged in the air pressure cap (2), the lower part of the valve body (1) is arranged in the flame arrester (3), the top end of the valve body (1) is arranged in the valve cover (4), a guide rod (17) and a guide rod seat (18) are arranged in the valve body (1), the guide rod (17) is arranged in the guide rod seat (18), the guide rod (17) is in sliding connection with the guide rod seat (18), a valve disc (8) is fixedly arranged at the top end of the guide rod (17), a support ring (26) is arranged at the bottom end of the valve disc (8), the valve disc (8) is clamped with the support ring (26), the support ring (26) is fixed with the inner wall of the valve body (1), and a valve rod (9) is fixedly arranged at the middle, the valve rod (9) with the junction of valve disc (8) is equipped with first sealing washer (19), spring (10) has been cup jointed to the outer wall of rod seat (18), the bottom of spring (10) and the bottom fixed connection of guide arm (17), the top of spring (10) with support ring (26) fixed connection, the bottom of spring (10) is equipped with holding down plate (23), the inner wall sliding connection of holding down plate (23) and valve body (1), the top of valve rod (9) is equipped with top board (24), the inner wall sliding connection of top board (24) and valve body (1), the top of top board (24) is equipped with sealing member (5), the bottom of sealing member (5) is equipped with sprue (21), the lateral wall of valve body (1) is equipped with bleeder vent (22), bleeder vent (22) with the inside intercommunication of valve body (1), the sprue (21) with bleeder vent (22) flush, the both sides of valve body (1) are equipped with admission valve (20) and air outlet valve (13), be equipped with air inlet (7) and gas outlet (6) on admission valve (20) and air outlet valve (13), air inlet (7) and gas outlet (6) communicate with admission valve (20) and air outlet valve (13) respectively, the bottom of valve body (1) is equipped with intercommunication mouth (15), intercommunication mouth (15) and oil tank intercommunication, back-fire relief ware (3) are including back-fire relief steering wheel (16) and back-fire relief layer (14), the top of intercommunication mouth (15) is arranged in back-fire relief layer (14).

2. The oil tank fire-retardant pressure valve with good sealing performance as claimed in claim 1, wherein the air inlet (7) and the air outlet (6) are both movably provided with first sealing rings (19).

3. The oil tank fire-retardant pressure valve with good sealing performance as claimed in claim 1, wherein a flange (25) is fixedly arranged at the bottom end of the valve body (1), and the flange (25) is in threaded connection with an oil tank.

4. The oil tank fire-retardant pressure valve with good sealing performance as claimed in claim 3, wherein a plurality of fire-retardant elements are filled in the fire-retardant layer (14), and gaps capable of allowing gas to pass through are arranged between the fire-retardant elements.

5. The oil tank fire-retardant pressure valve with good sealing performance as claimed in claim 1, wherein a filter screen (11) is arranged at the top end of the fire-retardant steering wheel (16).

6. The oil tank fire-retardant pressure valve with good sealing performance as claimed in claim 1, wherein a second sealing ring (12) is arranged at the joint of the vacuum pressure cap (2) and the fire retardant device (3).

Technical Field

The invention relates to the technical field of oil tank safety devices, in particular to an oil tank fire-retardant pressure valve with good sealing performance.

Background

The breather valve generally all can set up on present oil tank, the breather valve mainly is equipped with air outlet valve device and admission valve device in the casing, when making the oil storage tank oil feed state, the air outlet valve is opened, the outside discharge of air in the oil storage tank, when the oil storage tank produces oil, the admission valve is opened, outside air gets into the oil storage tank, keep the inside and outside pressure balance of oil storage tank, when the oil storage tank stops business turn over oil state, go out valve and admission valve and close simultaneously, keep apart oil storage tank and external world, prevent that gaseous state oil from running outward and external unexpected fire source gets into the oil storage tank, energy-conservation, the environmental protection, advantages such as safe fire prevention, mainly applicable oil storage tank, current back-fire relief pressure valve, the leakproofness is relatively poor.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the fire-retardant pressure valve for the oil tank, which has good sealing performance.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides an oil tank back-fire relief pressure valve that leakproofness is good, includes valve body, valve gap, vacuum pressure cap and spark arrester, the upper portion of valve body is arranged in to the empty pressure cap, the lower part of arranging the valve body in of spark arrester, the top of valve body is arranged in to the valve gap, the inside of valve body is equipped with guide arm and guide arm seat, the inside of guide arm seat is arranged in to the guide arm, guide arm and guide arm seat sliding connection, the fixed valve disc that is equipped with in top of guide arm, the bottom of valve disc is equipped with the support ring, the valve disc with the support ring joint, the support ring is fixed with the inner wall of valve body, the fixed valve rod that is equipped with in top intermediate position of valve body, the junction of valve rod with the valve disc is equipped with first sealing washer, the outer wall of rod seat has cup jointed the spring, the bottom of spring and the, the bottom of spring is equipped with the holding down plate, the inner wall sliding connection of holding down plate and valve body, the top of valve rod is equipped with the top board, the inner wall sliding connection of top board and valve body, the top of top board is equipped with the sealing member, the bottom of sealing member is equipped with the sprue, the lateral wall of valve body is equipped with the bleeder vent, the bleeder vent with the inside intercommunication of valve body, the sprue with the bleeder vent flushes, the both sides of valve body are equipped with admission valve and air outlet valve, be equipped with air inlet and gas outlet on admission valve and the air outlet valve, air inlet and gas outlet communicate with admission valve and air outlet valve respectively, the bottom of valve body is equipped with the intercommunication mouth, intercommunication mouth and oil tank intercommunication, the spark arrester includes back-arrest steering wheel and back-fire relief layer, the top of intercommunication mouth is arranged in.

In a further description of the present invention, the air inlet and the air outlet are movably provided with a first sealing ring.

The invention is further described in that a flange is fixedly arranged at the bottom end of the valve body and is in threaded connection with the oil tank.

The invention is further described in that the fire barrier layer is filled with a plurality of fire barrier elements, with spaces being provided between the fire barrier elements, through which gas can pass.

In the further description of the invention, a filter screen is arranged at the top end of the fire retardant steering wheel, and the filter screen can filter dust.

In a further aspect of the invention, a second sealing ring is provided at the junction of the vacuum pressure cap and the flame arrestor.

By means of the scheme, the oil storage tank has the advantages that the oil storage tank can be isolated from the outside, gas oil products are prevented from escaping from the outside and accidental fire sources from the outside enter the oil storage tank, the oil storage tank has the advantages of energy conservation, environmental protection, safety, fire prevention and the like, and meanwhile, the sealing performance of the integrated design is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

in the figure: 1. the valve body, 2, vacuum pressure cap, 3, flame arrester, 4, valve gap, 5, sealing member, 6, gas outlet, 7, air inlet, 8, valve disc, 9, valve rod, 10, spring, 11, filter screen, 12, second sealing ring, 13, gas outlet valve, 14, fire retardant layer, 15, communicating opening, 16, fire retardant steering wheel, 17, guide rod, 18, guide rod seat, 19, first sealing ring, 20, air inlet valve, 21, sprue, 22, bleeder vent, 23, lower pressure plate, 24, upper pressure plate, 25, flange, 26, support ring.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

As shown in the attached drawings, the oil tank fire retardant pressure valve with good sealing performance comprises a valve body 1, a valve cover 4, a vacuum pressure cap 2 and a fire retardant device 3, wherein a second sealing ring 12 is arranged at the joint of the vacuum pressure cap 2 and the fire retardant device 3, the upper part of the valve body 1 is arranged in the vacuum pressure cap 2, the lower part of the valve body 1 is arranged in the fire retardant device 3, the top end of the valve body 1 is arranged in the valve cover 4, a guide rod 17 and a guide rod seat 18 are arranged in the valve body 1, the guide rod 17 is arranged in the guide rod seat 18, the guide rod 17 is in sliding connection with the guide rod seat 18, a valve disc 8 is fixedly arranged at the top end of the guide rod 17, a support ring 26 is arranged at the bottom end of the valve disc 8, the valve disc 8 is clamped with the support ring 26, the support ring 26 is fixed with the inner wall of the valve body 1, a valve rod 9 is fixedly arranged at, the outer wall of the rod seat 18 is sleeved with a spring 10, the bottom end of the spring 10 is fixedly connected with the bottom end of the guide rod 17, the top end of the spring 10 is fixedly connected with the support ring 26, the bottom end of the spring 10 is provided with a lower pressing plate 23, the lower pressing plate 23 is slidably connected with the inner wall of the valve body 1, the top end of the valve rod 9 is provided with an upper pressing plate 24, the upper pressing plate 24 is slidably connected with the inner wall of the valve body 1, a sealing element 5 is arranged above the upper pressing plate 24, the bottom end of the sealing element 5 is provided with a blocking block 21, the side wall of the valve body 1 is provided with a vent hole 22, the vent hole 22 is communicated with the inside of the valve body 1, the blocking block 21 flushes with the vent hole 22, the two sides of the valve body 1 are provided with an air inlet valve 20 and an air outlet valve 13, the air inlet 7 and the air, air inlet 7 and gas outlet 6 communicate with admission valve 20 and gas outlet valve 13 respectively, the bottom of valve body 1 is equipped with intercommunication mouth 15, intercommunication mouth 15 and oil tank intercommunication, spark arrester 3 includes back-fire relief steering wheel 16 and back-fire relief layer 14, and the top of back-fire relief steering wheel 16 is equipped with filter screen 11, and back-fire relief layer 14 intussuseption is filled with a plurality of back-fire relief components, is equipped with the space that can make gas pass through between the back-fire relief component, the top of intercommunication mouth 15 is arranged in to back-fire relief layer 14, the bottom mounting of valve body 1 is equipped with flange 25, flange 25 and oil tank threaded connection.

The working principle is as follows: when the invention is used, the valve body is fixed with the oil tank through the flange 25, when the oil storage tank is in an oil inlet state, the air outlet valve 13 is opened, the air in the oil storage tank is discharged outwards through the air outlet 6, when the oil storage tank is in an oil outlet state, the air inlet valve 20 is opened, the outside air enters the oil storage tank through the air inlet 7, the pressure balance inside and outside the oil storage tank is kept, when the oil storage tank stops in the oil inlet state, the air outlet valve 13 and the air inlet valve 20 are simultaneously closed, the oil storage tank is isolated from the outside, the escape of gaseous oil and the entrance of an external accidental fire source into the oil storage tank are prevented, when the temperature inside the oil storage tank rises, the pressure inside the oil storage tank is increased, the lower pressure plate 23 moves upwards to extrude the spring 10, the guide rod 17 is driven to move upwards in the guide rod seat 18, the valve rod 9 moves upwards to push the sealing element 5 to move, thereby allowing gas to be discharged through the vent hole 22 and maintaining the internal pressure and the external pressure of the oil storage tank to be balanced.

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 invention, the scope of which is defined in the appended claims and their equivalents.