Novel fire-retardant breather valve

Abstract

The novel fire-retardant breather valve comprises a breather valve body, a flame arrester, a connecting pipe, a condensation mechanism and a storage tank, the top of the storage tank is sequentially connected with the flame arrester and the breather valve body through the connecting pipe, the condensation mechanism is arranged in the connecting pipe and comprises a condensation hopper, and the condensation hopper is arranged in the storage tank. A plurality of vent pipes are uniformly distributed in the condensation hopper, and condensed water circularly flows in the condensation hopper; by the adoption of the technical scheme, normal circulation of gas in the storage tank is achieved through the breather pipe in the condensation hopper, when liquid in the storage tank volatilizes, the gas phase rises, and when the gas phase encounters the condensation hopper, the gas phase can be cooled and condensed again to form liquid drops which fall into the storage tank, gas phase loss of the volatile liquid in the storage tank is reduced to a certain degree, and the storage tank is protected. And the load of a tail gas treatment system is reduced.

Description

Technical Field

[0001] The utility model relates to the field of flame arresters and breath valves, and particularly relates to a novel flame arrester and breath valve. Background Art

[0002] In the chemical industry, flame arresters and breath valves are commonly used in atmospheric storage tanks for Class A and Class B liquids. They can not only maintain the air pressure balance in the storage tank to ensure the safe use of the storage tank under overpressure or vacuum conditions, but also reduce the loss of the medium in the tank to a certain extent. Since the storage tank stores Class A and Class B media, the boiling points of such liquids are usually relatively low, and the solvents are more volatile. Especially for the storage tanks in the outdoor tank area, they are more easily affected by temperature and sunlight, and their gas phase pressure usually exceeds the set pressure of exhalation, resulting in continuous volatilization and loss of solvents, and an increased treatment load on the tail gas system. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] In order to solve the above problems of the prior art, the utility model provides a novel flame arrester and breath valve.

[0005] (II) Technical Solutions

[0006] In order to achieve the above object, the main technical solutions adopted by the utility model include:

[0007] A novel flame arrester and breath valve, comprising a breath valve body, a flame arrester, a connecting pipe, a condensation mechanism and a storage tank;

[0008] The top of the storage tank is sequentially connected to the flame arrester and the breath valve body through the connecting pipe;

[0009] The condensation mechanism is arranged in the connecting pipe. The condensation mechanism includes a condensation hopper, and a plurality of ventilation pipes are uniformly arranged in the condensation hopper, and condensation water circulates in the condensation hopper.

[0010] Preferably, the condensation hopper includes a hopper body, a hopper bottom and a hopper cover;

[0011] The hopper body is a hollow cylinder with openings at both the top and the bottom;

[0012] The hopper bottom is installed at the bottom of the hopper body, and the hopper bottom has a funnel-shaped structure with a larger top and a smaller bottom;

[0013] The hopper cover is arranged at the top of the hopper body;

[0014] A plurality of ventilation pipes are provided and are uniformly arranged on the hopper bottom. Ventilation holes corresponding to the ventilation pipes are opened on the hopper bottom, and one end of the top of the ventilation pipe penetrates through the hopper cover and extends upward.

[0015] Preferably, the condensation mechanism further includes a condensation water tank and a circulation pump. The condensation water tank is connected to the circulation pump and the condensation hopper in sequence through pipelines to form a water cycle.

[0016] Preferably, the circulating water in the condensation mechanism is brine with a concentration of 23%.

[0017] Preferably, the ventilation pipe is a conical pipe with a smaller upper part and a larger lower part.

[0018] Preferably, a blocking component corresponding to the ventilation pipe is arranged on the hopper cover. The blocking component includes a cone block and a support rod. The pointed angle part of the cone block faces downward. The cone block is coaxially arranged with the ventilation pipe and is arranged directly above the corresponding ventilation pipe. The cone block is fixed on the hopper cover through the support rod.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the present utility model are as follows: By adopting the above technical solution, the ventilation pipe in the condensation hopper enables the normal circulation of the gas in the storage tank. When the liquid in the storage tank volatilizes, the gas phase rises. When it encounters the condensation hopper, it will be cooled again and condensed into liquid droplets and fall into the storage tank. To a certain extent, the gas phase loss of the volatile liquid in the storage tank is reduced, and the load of the tail gas treatment system is reduced. Description of the drawings

[0021] Figure 1 It is a schematic structural diagram of a new type of flame arrester breathing valve;

[0022] Figure 2 It is a schematic structural diagram of the condensation hopper;

[0023] Figure 3 It is a longitudinal sectional structural diagram of the condensation hopper;

[0024] Figure 4 It is a schematic structural diagram of the second embodiment of the condensation hopper.

[0025]

Description of the reference numerals

[0026] 1. Breathing valve body;

[0027] 2. Flame arrester;

[0028] 3. Condensation hopper;

[0029] 31. Hopper body; 32. Hopper bottom; 33. Hopper cover; 34. Ventilation pipe; 35. Cone block; 36. Support rod;

[0030] 4. Connecting pipe;

[0031] 5. Storage tank;

[0032] 6. Circulation pump;

[0033] 7. Condensation water tank. Specific implementation manner

[0034] For better explaining the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the drawings through specific implementation manners.

[0035] Please refer to Figures 1 to 3 , the present utility model provides a new type of flame arrester breather valve, including a breather valve body 1, a flame arrester 2, a connecting pipe 4, a condensation mechanism and a storage tank 5;

[0036] The top of the storage tank 5 is sequentially connected to the flame arrester 2 and the breather valve body 1 through the connecting pipe 4;

[0037] The condensation mechanism is arranged in the connecting pipe 4. The condensation mechanism includes a condensation hopper 3. A plurality of ventilation pipes 34 are evenly arranged in the condensation hopper 3, and condensation water circulates in the condensation hopper 3;

[0038] During use, the ventilation pipes 34 in the condensation hopper 3 realize the normal circulation of the gas in the storage tank 5. When the liquid in the storage tank 5 volatilizes, the gas phase rises. When it encounters the condensation hopper 3, it will be cooled again and condensed into droplets and fall into the storage tank 5, reducing the gas phase loss of the volatile liquid in the storage tank 5 to a certain extent and reducing the load of the tail gas treatment system.

[0039] In this embodiment, the condensation hopper 3 includes a hopper body 31, a hopper bottom 32 and a hopper cover 33;

[0040] The hopper body 31 is a hollow cylinder with openings at both the top and the bottom;

[0041] The hopper bottom 32 is installed at the bottom of the hopper body 31, and the hopper bottom 32 is in a funnel-shaped structure with a larger top and a smaller bottom;

[0042] The hopper cover 33 is arranged at the top of the hopper body 31;

[0043] A plurality of ventilation pipes 34 are provided and are evenly arranged on the hopper bottom 32. Ventilation holes corresponding to the ventilation pipes 34 are opened on the hopper bottom 32. One end of the top of the ventilation pipe 34 penetrates through the hopper cover 33 and extends upward;

[0044] During use, when the liquid in the storage tank 5 volatilizes, the gas phase rises and contacts the hopper bottom 32. Whether the circulating condensation water in the condensation hopper 3 can cool the volatilized gas. After cooling, the gas is condensed into a liquid and adheres to the bottom of the hopper bottom 32, and then flows back into the storage tank 5 under the action of the inclined plane at the bottom of the hopper bottom 32.

[0045] In this embodiment, the condensation mechanism further includes a condensation water tank 7 and a circulation pump 6. The condensation water tank 7 is sequentially connected to the circulation pump 6 and the condensation hopper 3 through pipelines to form a water cycle. The circulating water in the condensation mechanism is brine with a concentration of 23%;

[0046] During use, the condensate water tank 7 is used to supply condensate water. The condensate water circulates in the condensate hopper 3 under the action of the circulation pump 6. The brine with a concentration of 23% is not easy to freeze, ensuring the fluidity of the condensate water. It should be noted that the condensate water tank 7 can supply condensate water to the condensate hoppers 3 in multiple storage tanks 5 at the same time, thereby reducing the use cost.

[0047] Reference Figure 4 , in this embodiment, the vent pipe 34 is a tapered pipe with a smaller upper part and a larger lower part. The tapered vent pipe 34 enables the liquid condensed in the vent pipe 34 to flow along the pipe wall into the storage tank 5.

[0048] In this embodiment, a blocking assembly corresponding to the vent pipe 34 is provided on the hopper cover 33. The blocking assembly includes a tapered block 35 and a support rod 36. The pointed part of the tapered block 35 faces downward. The tapered block 35 is coaxially arranged with the vent pipe 34 and is disposed directly above the corresponding vent pipe 34. The tapered block 35 is fixed to the hopper cover 33 through the support rod 36; during use, some of the cooled gas flowing out through the vent pipe 34 will form liquid water droplets at the bottom of the tapered block 35, and the liquid water droplets will pass through the vent pipe 34 and flow back into the storage tank 5 again, realizing the secondary recovery of the volatilized gas.

[0049] The working principle of the present utility model is as follows:

[0050] The vent pipe 34 in the condensate hopper 3 realizes the normal circulation of the gas in the storage tank 5. When the liquid in the storage tank 5 volatilizes, the gas phase rises. When it encounters the condensate hopper 3, it will be cooled and condensed again to form liquid droplets and fall into the storage tank 5. To a certain extent, the gas phase loss of the volatile liquid in the storage tank 5 is reduced, and the load on the tail gas treatment system is reduced.

[0051] The circuits, electronic components, and modules involved are all prior art and can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods.

[0052] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent transformation made using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present utility model.

[0053] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new type of flame arrester breather valve, characterized in that, It includes a breather valve body, a flame arrester, a connecting pipe, a condensation mechanism and a storage tank; The top of the storage tank is sequentially connected to the flame arrester and the breather valve body through the connecting pipe; The condensation mechanism is arranged in the connecting pipe. The condensation mechanism includes a condensation hopper. A plurality of ventilation pipes are evenly arranged in the condensation hopper, and condensed water circulates in the condensation hopper.

2. The novel flame arrester breathing valve according to claim 1, characterized in that, The condensation hopper includes a hopper body, a hopper bottom and a hopper cover; The hopper body is a hollow cylinder with openings at both the top and the bottom; The hopper bottom is installed at the bottom of the hopper body, and the hopper bottom has a funnel-shaped structure with a larger top and a smaller bottom; The hopper cover is arranged at the top of the hopper body; A plurality of ventilation pipes are provided, which are evenly arranged on the hopper bottom, and ventilation holes corresponding to the ventilation pipes are opened on the hopper bottom. One end of the top of the ventilation pipe penetrates through the hopper cover and extends upward.

3. A novel flame arrester breather valve according to claim 1, characterized in that, The condensation mechanism further includes a condensation water tank and a circulation pump. The condensation water tank is sequentially connected to the circulation pump and the condensation hopper through pipelines to form a water cycle.

4. A novel flame arrester breathing valve according to claim 3, characterized in that, The circulating water in the condensation mechanism is brine with a concentration of 23%; 5. A novel fire-resistant breathing valve according to claim 2, characterized in that, The ventilation pipe is a conical pipe with a smaller top and a larger bottom; 6. A novel flame arrestor breathing valve according to claim 2, characterized in that, A blocking assembly corresponding to the ventilation pipe is arranged on the hopper cover. The blocking assembly includes a conical block and a support rod. The pointed angle part of the conical block faces downward. The conical block is coaxially arranged with the ventilation pipe and is arranged directly above the corresponding ventilation pipe. The conical block is fixed on the hopper cover through the support rod.

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