CN216045660U

CN216045660U - Improved breather valve for hydrogen peroxide tank

Info

Publication number: CN216045660U
Application number: CN202122188718.6U
Authority: CN
Inventors: 朱新如; 袁泉; 傅海燕
Original assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Current assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-03-15
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an improved breather valve for a hydrogen peroxide can, which comprises a dustproof cover, a valve seat, an upper valve body and a lower valve body which are mutually matched and sequentially arranged along the vertical direction, wherein the inner cavities of the valve seat, the upper valve body and the lower valve body are communicated, the top of the inner cavity of the lower valve body is provided with a filter I, the filter I is arranged at the adjacent position below the inner cavity of the upper valve body, the inner cavity of the upper valve body is internally provided with a ball core capable of being sealed on the spherical surface at the bottom of the inner cavity of the valve seat and a guide rib matched with the ball core, the inner cavity of the valve seat is internally provided with a filter II, the filter I and the ball core are coaxially arranged, and an air outlet channel is formed at one side between the dustproof cover and the valve seat. The breather valve not only can prevent the hydrogen peroxide tank from being deflated due to too low negative pressure or bursting due to too high positive pressure, but also has the functions of dust prevention and leakage prevention.

Description

Improved breather valve for hydrogen peroxide tank

Technical Field

The utility model relates to the technical field of valves, in particular to an improved breather valve for a hydrogen peroxide tank.

Background

When the hydrogen peroxide tank is filled with hydrogen peroxide or the hydrogen peroxide in the tank is heated and evaporated, the internal pressure rises, or the internal pressure is reduced by removing the hydrogen peroxide in the tank, and the like, the internal part of the tank and the external atmosphere need to be mutually ventilated, so that the phenomenon that the tank is too low in pressure and deflated or too high in pressure and bursts is prevented, and a breather valve is usually arranged on the top of the hydrogen peroxide tank.

The existing breather valve can play a role in balancing the air pressure inside and outside the tank body, but once the hydrogen peroxide tank is accidentally dumped, the hydrogen peroxide can easily flow out of the breather valve, so that economic loss is caused, and the environment is damaged.

In order to solve the problem that hydrogen peroxide directly flows out after the tank body is accidentally dumped, manufacturers try to install a movable sealing assembly on the breather valve, and the purpose of preventing leakage is achieved. For example, chinese patent No. 200810062177.9 discloses a breather valve, and proposes that "a second liquid leakage preventing device is disposed under the base, and the second liquid leakage preventing device disposed under the base comprises an upper sleeve, a lower sleeve, and a movable sealing component, and the movable sealing component is a ball".

Although be provided with the ball so that arrive the sealed effect of lower cover when inclining among this prior art, the ball is complete activity, and its sealing stability is not enough, and sealed effect is general, also has the hydrogen peroxide of jar internal portion simultaneously and can take place the vaporization when being heated the evaporation, and hydrogen peroxide after the vaporization has discharged the external world through the breather valve equally, and this kind of breather valve is when jar internal pressure is low excessively, inhales the dust very easily to the technical problem who leads to the emergence to block up or pollute the interior hydrogen peroxide of jar.

For this reason, a new technical solution is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved breather valve for a hydrogen peroxide tank, which aims to solve the technical problem that the existing breather valve proposed by the background is easy to suck dust when the internal pressure of a tank body is too low, so that hydrogen peroxide in the tank is blocked or polluted; meanwhile, the technical problem that when the tank body is inclined or hydrogen peroxide in the tank body is heated, evaporated and vaporized, the hydrogen peroxide is lost through the breather valve is solved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an improved breather valve for a hydrogen peroxide can comprises a dustproof cover, a valve seat, an upper valve body and a lower valve body which are mutually matched and sequentially arranged along the vertical direction, wherein the inner cavities of the valve seat, the upper valve body and the lower valve body are mutually communicated, the top of the inner cavity of the lower valve body is provided with a filter sheet I, a sealing gasket I is arranged between the filter sheet I and the bottom wall of the inner cavity of the lower valve body, a U-shaped baffle matched with the filter sheet I is fixedly arranged below the inner cavity of the lower valve body, the filter sheet I is arranged at the adjacent position below the inner cavity of the upper valve body, a ball core capable of being sealed on the spherical surface at the bottom of the inner cavity of the valve seat is arranged in the inner cavity of the upper valve body, three guide ribs matched with the ball core are uniformly distributed on the inner peripheral side wall of the upper valve body, the guide ribs and the upper valve body are integrally formed, a filter sheet II is arranged in the inner cavity of the valve seat, and a sealing gasket II is arranged between the filter sheet II and the bottom wall of the inner cavity of the valve seat, the utility model discloses a valve seat, including filter disc II, filter disc I and the ball core, one side between shield and the disk seat is formed with air outlet channel, be equipped with between filter disc II and the shield and press the cover, the one end lateral wall of pressing the cover is formed with air outlet channel matched with gas outlet I, air outlet channel matched with gas outlet II has been seted up on the lateral wall of shield, press the other end of cover to stretch into in the inner chamber of disk seat.

The filter I and the filter II are both stainless steel filters, and the diameter of the filter II is smaller than that of the filter I; go up the bottom of valve body be formed with lower valve body matched with ring flange, be connected with the safety chain between the upper surface of ring flange and the top of shield, wear to be equipped with countersunk screw on valve body and the ring flange down jointly, the ring flange passes through countersunk screw and lower valve body fixed connection, be equipped with the sealing washer in order to form axial seal down between valve body and the ring flange, be equipped with sealed pad III in order to form axial seal between disk seat and the last valve body.

Compared with the prior art, the utility model has the beneficial effects that:

1. the filter sheet I and the filter sheet II are arranged, so that a dustproof effect in the internal and external air pressure process of the breather valve balance tank body can be achieved, the breather valve is prevented from being blocked or dust enters the tank body, a flow limiting effect is achieved, vaporized gas enters an inner cavity of the upper valve body through the filter sheet I and can temporarily stay when the evaporation capacity of hydrogen peroxide is not large, and when the subsequent temperature is reduced, the gas in the inner cavity of the upper valve body is converted back into liquid again and returns to the tank body again, so that the loss of hydrogen peroxide caused by evaporation due to heating is avoided; meanwhile, the ball core is placed in the inner cavity of the upper valve body, when the tank body is accidentally toppled, the ball core is attached to the spherical surface at the bottom of the inner cavity of the valve seat under the matching of the guide ribs and the action of self gravity, the sealing effect is good, the toppling and leakage prevention purposes are achieved, and double insurance is achieved;

2. the arrangement of the U-shaped baffle plate effectively avoids the direct impact of gas on the filter sheet I; the filter disc I and the filter disc II are both stainless steel filter discs, so that the breather valve is corrosion-resistant, good in material compatibility, easy to clean and maintain and further prolonged in service life;

3. the arrangement of the sealing ring and the plurality of sealing gaskets effectively ensures the integral sealing effect of the breather valve; meanwhile, a safety chain is connected between the valve seat and the dustproof cover, so that the use safety of the breather valve is further ensured.

Drawings

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

FIG. 2 is a schematic structural view of a guide rib according to the present invention;

FIG. 3 is a schematic diagram of the tilted state of the present invention;

in the figure: 1. u type baffle, 2, lower valve body, 3, sealing washer, 4, go up the valve body, 401, the ring flange, 5, the safety chain, 6, the disk seat, 601, spherical face, 7, the pressure cover, 8, the shield, 9, filter plate II, 10, sealed pad II, 11, sealed pad III, 12, the direction muscle, 13, filter plate I, 14, sealed pad I, 15, countersunk screw, 16, the ball core, 17, gas outlet I, 18, gas outlet II, 19, the passageway of giving vent to anger.

Detailed Description

The technical scheme of the utility model is clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, an improved breather valve for a hydrogen peroxide can is shown, which comprises a dust cap 8, a valve seat 6, an upper valve body 4 and a lower valve body 2 which are coaxially arranged along the vertical direction and are mutually matched, wherein the inner cavities of the valve seat 6, the upper valve body 4 and the lower valve body 2 are communicated, a sealing gasket iii 11 is arranged between the valve seat 6 and the upper valve body 4 to form axial sealing, a ball core 16 which can be sealed on a spherical surface 601 at the bottom of the inner cavity of the valve seat 6 is arranged in the inner cavity of the upper valve body 4, a filter sheet i 13 which is coaxial with the ball core 16 is arranged at the adjacent position below the inner cavity of the upper valve body 4, three guide ribs 12 which are matched with the filter sheet i 13 are circumferentially distributed on the inner peripheral side wall of the upper valve body 4, the guide ribs 12 and the upper valve body 4 are integrally formed, the filter sheet i 13 is arranged at the top of the inner cavity of the lower valve body 2, a U-shaped baffle plate 1 which is matched with the filter sheet i 13 is fixedly arranged below the inner cavity of the lower valve body 4, a filter II 9 coaxial with the filter I13 is arranged in the inner cavity of the valve seat 6, a pressing sleeve 7 is clamped between the filter II 9 and the dustproof cover 8, the lower end of the pressing sleeve 7 extends into the inner cavity of the valve seat 6, an air outlet I17 is formed in the side wall of the upper end of the pressing sleeve 7, an air outlet II 18 matched with the air outlet I17 is formed in the side wall of the dustproof cover, and an air outlet channel 19 is formed between the air outlet I17 and the air outlet II 18; go up the bottom of valve body 4 and be formed with ring flange 401, be connected with safety chain 5 between the upper surface of ring flange 401 and the top of shield 8, wear to be equipped with countersunk screw 15 on lower valve body 2 and the ring flange 401 jointly, ring flange 401 passes through countersunk screw 15 and lower valve body 2 fixed connection, is equipped with sealing washer 3 between lower valve body 2 and the ring flange 401 in order to form axial seal.

Wherein, rose patch I13 and rose patch II 9 are the stainless steel rose patch, and the diameter of rose patch I13 is greater than the diameter of rose patch II 9, is equipped with sealed I14 between rose patch I13 and the inner chamber diapire of lower valve body 2, is equipped with sealed II 10 of filling up between the inner chamber diapire of rose patch II 9 and disk seat 6.

When the hydrogen peroxide tank works, hydrogen peroxide is filled into the tank body of the hydrogen peroxide tank, gas in the tank body is compressed, the pressure in the tank body is higher than the atmospheric pressure, or the hydrogen peroxide in the tank body is heated and evaporated to be vaporized into gas, so that under the condition that the pressure in the tank body is higher than the atmospheric pressure, the gas passes through the filter sheet I13 and the filter sheet II 9 in sequence from bottom to top and is discharged from the gas outlet channel 19 outwards, and the gas pressure in the tank body is reduced and is consistent with the external gas pressure; when the evaporation capacity of hydrogen peroxide in the tank body is not large, vaporized gas enters the inner cavity of the upper valve body 4 through the filter I13 and temporarily stays due to the flow limiting effect of the filter I13 and the filter II 9, and if the subsequent temperature is reduced, the gas in the inner cavity of the upper valve body 4 is converted back into liquid again and falls back into the tank body again;

when the pressure in the tank body, such as hydrogen peroxide, unloaded from the tank body of the hydrogen peroxide tank is lower than the atmospheric pressure, the external air pressure sequentially passes through the filter II 9 and the filter I13, and air is introduced into the tank body under the filtering action of the filter II 9 and the filter I13, so that the air pressure in the tank body is increased and is consistent with the external air pressure;

in case of accidental toppling of the hydrogen peroxide tank, the ball core 16 is attached to the spherical surface 601 at the bottom of the inner cavity of the valve seat 6 under the action of the gravity of the ball core and the cooperation of the guide rib 12, so that the bottom of the inner cavity of the valve seat 6 is sealed, and hydrogen peroxide in the tank body is prevented from flowing out.

Claims

1. The utility model provides a modified breather valve for hydrogen peroxide can, is including mutually supporting, along shield, disk seat, the last valve body that upper and lower direction set gradually and lower valve body, disk seat, the inner chamber of going up valve body and lower valve body are linked together, a serial communication port, the inner chamber top of valve body is equipped with cassette I down, the adjacent position in inner chamber below of going up the valve body is located to cassette I, go up be equipped with in the inner chamber of valve body can seal ball core on the spherical surface of disk seat inner chamber bottom and with ball core matched with direction muscle, be equipped with cassette II in the inner chamber of disk seat, cassette II, cassette I and the coaxial setting of ball core, one side between shield and the disk seat is formed with air outlet channel.

2. The improved breather valve for the hydrogen peroxide can according to claim 1, wherein a pressing sleeve is arranged between the filter disc II and the dustproof cover, an air outlet I matched with the air outlet channel is formed on the side wall of one end of the pressing sleeve, an air outlet II matched with the air outlet channel is formed on the side wall of the dustproof cover, and the other end of the pressing sleeve extends into the inner cavity of the valve seat.

3. An improved breather valve for a hydrogen peroxide can according to claim 1 or 2, wherein a U-shaped baffle matched with the filter I is fixedly arranged below the inner cavity of the lower valve body.

4. An improved breather valve for a hydrogen peroxide can according to claim 1, wherein the guiding ribs are evenly distributed on the inner peripheral side wall of the upper valve body, and the upper valve body and the guiding ribs are integrally formed.

5. An improved breather valve for an oxygenated tank as recited in claim 4 wherein there are three guide ribs.

6. The improved breather valve for the hydrogen peroxide can as claimed in claim 1, wherein a sealing gasket I is arranged between the filter sheet I and the bottom wall of the inner cavity of the lower valve body, and a sealing gasket II is arranged between the filter sheet II and the bottom wall of the inner cavity of the valve seat.

7. The improved breather valve for the hydrogen peroxide can as claimed in claim 1, wherein the filter I and the filter II are both stainless steel filters, and the diameter of the filter I is larger than that of the filter II.

8. The improved breather valve for the hydrogen peroxide tank as claimed in claim 1, wherein a flange matched with the lower valve body is formed at the bottom of the upper valve body, countersunk screws are arranged on the lower valve body and the flange in a penetrating manner, and the flange is fixedly connected with the lower valve body through the countersunk screws.

9. An improved breather valve for a hydrogen peroxide can according to claim 8, wherein a safety chain is connected between the upper surface of said flange and the top of said dust cap.

10. An improved breather valve for a hydrogen peroxide can according to claim 8, wherein a sealing ring is arranged between the lower valve body and the flange plate to form an axial seal, and a sealing gasket III is arranged between the valve seat and the upper valve body to form an axial seal.