阅读说明：本技术 储油罐液封机械封双封一体环保呼吸装置 (Oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device ) 是由 宁满帅 王怡然 韩阳 甄榕 李蕾 张丰亮 王怡凡 宁琼军 于 2020-06-25 设计创作，主要内容包括：一种储油罐液封机械封双封一体环保呼吸装置,包括：壳体结构、呼吸阀、呼吸机构、连通管、进气机构、排气机构、反作用弹簧和吸附过滤介质,壳体结构包括圆柱形的壳体,与壳体螺栓连接的壳体座和壳体盖,设在壳体盖中部的呼吸阀；进气机构包括与直角连通管进气口焊接的方形进气管,设在方形进气管外周上部的进气阀直角梯形密封罩结构；排气机构包括插入壳体座中部设有排气口,中部设进气口,下端设有法兰的直角连通管,设在排气口上面的与进气阀结构相同且同向的排气阀,与排气阀垂直连接的排气管,设在排气管下端底部的环形管；吸附过滤介质包括设在排气管内周活性炭网内的球形活性炭和壳体底部的变压器油。防止了环境污染,实现了轻质成分回收。(The utility model provides an oil storage tank liquid seals mechanical seal integrative environmental protection respiratory device of two, includes: the breathing device comprises a shell structure, a breathing valve, a breathing mechanism, a communicating pipe, an air inlet mechanism, an exhaust mechanism, a reaction spring and an adsorption filter medium, wherein the shell structure comprises a cylindrical shell, a shell seat and a shell cover which are connected with the shell through bolts, and the breathing valve is arranged in the middle of the shell cover; the air inlet mechanism comprises a square air inlet pipe welded with an air inlet of the right-angle communicating pipe, and an air inlet valve right-angle trapezoidal sealing cover structure arranged at the upper part of the periphery of the square air inlet pipe; the exhaust mechanism comprises a right-angle communicating pipe inserted into the middle of the shell seat and provided with an exhaust port, an air inlet in the middle, a flange at the lower end, an exhaust valve which is arranged on the exhaust port and has the same structure and the same direction as the air inlet valve, an exhaust pipe vertically connected with the exhaust valve, and an annular pipe arranged at the bottom of the lower end of the exhaust pipe; the adsorption filter medium comprises spherical active carbon arranged in an active carbon net on the inner periphery of the exhaust pipe and transformer oil at the bottom of the shell. Prevents the environmental pollution and realizes the recovery of light components.)

1. The invention relates to an oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device, which comprises a shell structure, a breathing valve, a breathing mechanism, a communicating pipe, an air inlet mechanism, an exhaust mechanism, a reaction spring and an adsorption filter medium, and is characterized in that the shell structure comprises a cylindrical shell (5), a shell seat and a shell cover which are connected with shell fixing screws, and the breathing valve is arranged in the middle of the shell cover; the breathing mechanism comprises a right-angle communicating pipe (9) which is inserted into the lower end of the middle part of the shell and is provided with a flange, an air inlet which is arranged in the middle part of the vertical side of the right-angle communicating pipe, and an air outlet which is arranged on the horizontal right-angle side of the right-angle communicating pipe; the air inlet mechanism comprises a square air inlet pipe (12) horizontally connected with an air inlet of the right-angle communicating pipe, an air inlet valve right-angle trapezoidal sealing cover (13) arranged on the square air inlet pipe, a valve core rod (16) fixedly connected with a rotating shaft (14) on an inner bearing (15) at the upper end of the air inlet valve right-angle trapezoidal sealing cover, and an air inlet valve consisting of a valve core (17) for sealing the square air inlet pipe; the exhaust mechanism comprises an exhaust valve which is arranged on the exhaust port and has the same structure and the same direction as the air inlet valve, an exhaust pipe (10) which is vertically connected with the outlet of the exhaust valve, the lower part of which is horizontally connected with the annular pipe (11), is provided with a horse teeth buckle cover (6) on the upper part and is internally provided with an active carbon net (8) and active carbon (7), and an air outlet hole (26) arranged at the bottom of the annular pipe; the adsorption filter medium comprises spherical activated carbon and transformer oil (25) at the bottom of the shell; when the pressure in the oil storage tank is low and air supplement is needed, the air enters from the breather valve, the air inlet valve is pushed open to enter the oil storage tank through the right-angle communicating pipe for air supplement, and when the pressure in the oil storage tank is balanced with the atmospheric pressure, the air inlet valve is closed under the action of the gravity of the valve core and a reaction spring arranged on a right-angle trapezoid inclined plane; when the pressure in the oil storage tank is higher than the atmospheric pressure, the exhaust valve is pushed open, the gas in the oil storage tank is adsorbed by the activated carbon in the exhaust pipe, light oil components and harmful gas in the gas flow into the annular pipe along with the gas, the gas is discharged through the gas outlet and enters the liquid level of the transformer oil, the light components in the gas are dissolved and adsorbed by the transformer oil, harmless gas is discharged into the atmosphere from the breathing mechanism, the light oil floats on the surface of the transformer oil, and the gas is recovered into the oil storage tank from the gas inlet pipe when the oil storage tank is replenished with gas, so that the oil quality is ensured, and the environmental pollution is prevented.

2. The oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device as claimed in claim 1, characterized in that: the right trapezoid valve sealing cover that admits air is equipped with all around with square intake pipe assorted border, is equipped with screw hole and sealed the pad on the border, and the length and the width on right trapezoid inclined plane are greater than the width and the length of case, are equipped with the reaction spring on the right trapezoid inclined plane perpendicularly, is equipped with the bearing on right trapezoid valve sealing cover upper end middle part on the horizontal and establishes the pivot on the bearing.

3. The oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device as claimed in claim 1, characterized in that: the sum of the diameters of the air outlet holes arranged at the bottom of the annular pipe is larger than the diameter of the annular pipe.

4. The oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device as claimed in claim 1, characterized in that: the valve core is arranged to be a square body, a sealing groove is formed in the periphery of one side of the valve core, a square sealing ring is arranged in the sealing groove, and a valve core rod integrated with the valve core is vertically arranged in the middle of the upper top of the other side of the valve core.

5. The oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device as claimed in claim 1, characterized in that: the breather valve includes rain-proof cover (1), filter screen (4), respiratory orifice (2), respiratory tube (3), and respiratory tube vertical welding evenly is equipped with the respiratory orifice on the respiratory tube is global at the periphery of the respiratory orifice at casing lid middle part, and the filter screen is established in the respiratory tube, and rain-proof cover is established to semi-circular arc, through supporting and respiratory tube fixed link.

Technical Field

The invention relates to the technical field of oil storage safety, in particular to an oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device. The problems that the investment is large due to the double arrangement of a liquid seal and a mechanical seal breather valve of an oil storage tank, the exhaled gas pollutes the environment and the light oil cannot be recycled are solved.

Background

At present, oil storage tanks, oil field combined treatment stations and oil storage tanks used by oil pipeline departments in the society are provided with liquid seal breather valves and mechanical breather valves for oil storage in a micro-pressure sealing mode for oil storage tank work safety and oil gas volatilization reduction, and meanwhile, the oil storage tanks are protected from work safety. The liquid seal breather valve does not work at ordinary times, when the mechanical breather valve breathes air inefficiently or fails, and the pressure in the oil storage tank is lower than or higher than the working pressure, the air outside the oil storage tank or the air in the oil storage tank rushes open the liquid level to supplement air or exhaust, so that the oil storage tank works under the allowable working pressure, and the oil storage tank is ensured not to be pumped out or blown out. The arrangement ensures the working safety of the oil storage tank, but the mechanical breather valve discharges harmful gases such as hydrogen sulfide and light components of oil into the atmosphere in the exhaust process, pollutes the environment, wastes energy, is inconvenient to manage due to the arrangement of the two valves, and has large investment, so that a large amount of oil and gas resources and processing cost are lost every year in China.

Disclosure of Invention

The invention aims to provide an oil storage tank liquid seal and mechanical seal integrated environment-friendly breathing device, which overcomes the defects in the prior art.

The technical scheme of the invention is realized by the following modes:

the invention comprises a shell structure, a breather valve, a breather mechanism, a communicating pipe, an air inlet mechanism, an exhaust mechanism, a reaction spring and an adsorption filter medium, and is characterized in that the shell structure comprises a cylindrical shell, a shell seat and a shell cover which are connected with shell fixing screws, and the breather valve is arranged in the middle of the shell cover; the breathing mechanism comprises a right-angle communicating pipe inserted into the lower end of the middle part of the bottom of the shell and provided with a flange, an air inlet arranged in the middle part of the vertical side of the right-angle communicating pipe, and an air outlet arranged on the horizontal right-angle side of the right-angle communicating pipe; the air inlet mechanism comprises a square air inlet pipe horizontally connected with an air inlet of the right-angle communicating pipe, a right-angle trapezoidal sealing cover of the air inlet valve arranged on the square air inlet pipe, an air inlet valve consisting of a valve core rod fixedly connected with a rotating shaft on an inner bearing on the right-angle trapezoidal sealing cover and a valve core for sealing the square air inlet pipe; the exhaust mechanism comprises an exhaust valve which is arranged on the exhaust port and has the same structure and the same direction as the air inlet valve, an exhaust pipe which is vertically connected with the outlet of the exhaust valve, the lower part of which is horizontally connected with the annular pipe, is provided with a horse teeth buckle cover, is internally provided with an active carbon net and active carbon, and an air outlet hole which is arranged at the bottom of the annular pipe; the adsorption filter medium comprises spherical active carbon and transformer oil at the bottom of the shell; when the pressure in the oil storage tank is low and air supplement is needed, the air enters from the breather valve, the air inlet valve is pushed open to enter the oil storage tank through the right-angle communicating pipe for air supplement, and when the pressure in the oil storage tank is balanced with the atmospheric pressure, the air inlet valve is closed under the action of the gravity of the valve core and a reaction spring arranged on a right-angle trapezoid inclined plane; when the pressure in the oil storage tank is higher than the atmospheric pressure, the exhaust valve is pushed open, the gas in the oil storage tank is adsorbed by the activated carbon in the exhaust pipe, light oil components and harmful gas in the gas flow into the annular pipe along with the gas, the gas is discharged into the liquid level of the transformer oil through the gas outlet hole, the light components in the gas are dissolved and adsorbed by the transformer oil, harmless gas is discharged into the atmosphere from the breather valve, the light oil floats on the surface of the transformer oil, and the harmless gas is recovered into the oil storage tank when the oil storage tank is replenished with air, so that the oil quality is ensured, and the environmental pollution is prevented.

The right trapezoid valve sealing cover that admits air is equipped with all around with square intake pipe assorted border, is equipped with screw hole and sealed the pad on the border, and the length and the width on right trapezoid inclined plane are greater than the width and the length of case, are equipped with the reaction spring on the right trapezoid inclined plane perpendicularly, is equipped with the bearing on right trapezoid valve sealing cover upper end middle part on the horizontal and establishes the pivot on the bearing.

The sum of the diameters of the air outlet holes arranged at the bottom of the annular pipe is larger than the diameter of the annular pipe.

The valve core is arranged to be a square body, a sealing groove is formed in the periphery of one side of the valve core, a square sealing ring is arranged in the sealing groove, and a valve core rod integrated with the valve core is vertically arranged in the middle of the upper top of the other side of the valve core.

Respiratory mechanism includes rain-proof cover, filter screen, respiratory orifice, respiratory tube, and respiratory tube vertical welding evenly is equipped with the respiratory orifice on the respiratory orifice periphery at casing lid middle part, respiratory tube global, and the filter screen is established in the respiratory tube, and rain-proof cover is established to half circular arc, through supporting and respiratory tube fixed link.

Compared with the prior art, the invention has the following advantages:

1. the air inlet valve is opened and closed to supplement air for the oil storage tank, the opening is flexible, when the pressure in the oil storage tank is lower than one atmospheric pressure, the valve core is forcibly opened under the action of the atmospheric pressure, the valve core on the exhaust port is closed under the action of the atmospheric pressure of the reaction spring, the atmosphere enters the oil storage tank from the communicating pipe to supplement air, the air flux is large, the air supplement is rapid, and when the pressure in the oil storage tank is balanced with the atmospheric pressure, the air inlet valve is closed under the action of gravity and the reaction spring to stop supplementing air.

2. When the pressure in the oil storage tank is higher than the atmospheric pressure, the air inlet valve is closed under the action of the reaction spring and the pressure in the oil storage tank, the exhaust valve is opened under the action of the pressure in the oil storage tank and the gravity, the gas in the oil storage tank is adsorbed by the activated carbon, light oil components and harmful gas in the gas are adsorbed and flow into the annular pipe to be discharged and enter the liquid level of the transformer oil, the light components in the gas are dissolved and adsorbed by the transformer oil, the harmless gas is discharged into the atmosphere from the breather valve, the light oil floats on the surface of the transformer oil, and the gas is recycled into the oil storage tank through the air inlet pipe when the air in the oil storage tank is supplemented, so that the quality.

3. The breathing valve prevents rain and snow from entering the shell, has enough air suction and exhaust capacity, and ensures the stable work of the invention.

4. The liquid seal breather valve and the mechanical breather valve arranged on the original oil storage tank are replaced by the valve, and the light component recovery is realized, so that the management is convenient, the cost is saved, and the energy loss is prevented.

Drawings

FIG. 1-schematic view of the structure of the present invention

In the figure, 1-a rain cover, 2-a breathing hole, 3-a breathing pipe, 4-a filter screen, 5-a shell, 6-a button cover, 7-activated carbon, 8-an activated carbon net, 9-a right-angle communicating pipe, 10-an exhaust pipe, 11-a ring pipe, 12-an air inlet pipe, 13-an air inlet valve right-angle trapezoid sealing cover, 14-a rotating shaft, 15-a bearing, 16-a valve core rod, 17-a valve core, 18-a limiting block, 19-an exhaust valve right-angle trapezoid sealing cover, 20-an exhaust valve rotating shaft, 21-an exhaust valve bearing, 22-an exhaust valve core rod, 23-an exhaust valve core, 24-an exhaust valve limiting block, 25-transformer oil, 26-an air outlet hole, 27-a fixing screw and 28-a flange.

Detailed Description

To further disclose the technical scheme of the invention, the following detailed description is made by embodiments in combination with the attached drawings of the specification:

the invention comprises a shell structure, a breather valve consisting of a rain cover 1, a breather hole 2, a breather pipe 3 and a filter screen 4, a breather mechanism, a communicating pipe, an air inlet mechanism consisting of a square air inlet pipe 12, an air inlet valve right-angle trapezoidal sealing cover 13, a rotating shaft 14, a bearing 15, a valve core rod 16, a valve core 17, a reaction spring and a limiting block 18, an exhaust mechanism consisting of an exhaust valve right-angle trapezoidal sealing cover 19, an exhaust valve rotating shaft 20, an exhaust valve bearing 21, an exhaust valve core rod 22, an exhaust valve core 23, a reaction spring and an exhaust valve limiting block 24, a reaction spring and an adsorption filter medium; the shell structure comprises a cylindrical shell 5, a shell seat and a shell cover which are connected with shell fixing screws, and a breather valve arranged in the middle of the shell cover; the breathing mechanism comprises a right-angle communicating pipe 9 which is inserted into the lower end of the middle part of the shell and is provided with a flange, an air inlet which is arranged in the middle part of the vertical side of the right-angle communicating pipe, and an air outlet which is arranged on the horizontal right-angle side of the right-angle communicating pipe; the air inlet mechanism comprises a square air inlet pipe 12 horizontally connected with an air inlet of the right-angle communicating pipe, an air inlet valve right-angle trapezoidal sealing cover 13 arranged on the square air inlet pipe, an air inlet valve consisting of a valve core rod fixedly connected with a rotating shaft on an inner bearing on the air inlet valve right-angle trapezoidal sealing cover and a valve core of the sealed square air inlet pipe; the exhaust mechanism comprises an exhaust valve which is arranged on the exhaust port and has the same structure and the same direction as the air inlet valve, an exhaust pipe 10 which is vertically connected with the outlet of the exhaust valve, the lower part of which is horizontally connected with the annular pipe 11, is provided with a horse teeth buckle cover 6, is internally provided with an active carbon net 8 and active carbon 7, and an air outlet 26 arranged at the bottom of the annular pipe; the adsorption filter medium comprises spherical active carbon and transformer oil at the bottom of the shell; when the pressure in the oil storage tank is low and air supplement is needed, the air enters from the breather valve, the air inlet valve is pushed open to enter the oil storage tank through the right-angle communicating pipe for air supplement, and when the pressure in the oil storage tank is balanced with the atmospheric pressure, the air inlet valve is closed under the action of the gravity of the valve core and a reaction spring arranged on a right-angle trapezoid inclined plane; when the pressure in the oil storage tank is higher than the atmospheric pressure, the exhaust valve is pushed open, the gas in the oil storage tank is adsorbed by the activated carbon in the exhaust pipe, light oil components and harmful gas in the gas flow into the annular pipe along with the gas, the gas is discharged through the gas outlet and enters the liquid level of the transformer oil, the light components in the gas are dissolved and adsorbed by the transformer oil, harmless gas is discharged into the atmosphere from the breathing mechanism, the light oil floats on the surface of the transformer oil, and the gas is recovered into the oil storage tank from the gas inlet pipe when the oil storage tank is replenished with gas, so that the oil quality is ensured, and the environmental pollution is prevented.

The invention solves the problems that the oil storage tank conveys oil outwards, the pressure in the tank is reduced, air is required to be supplied, the oil is filled into the oil storage tank, the air is timely supplied and exhausted when the pressure in the tank is increased and the air is required to be exhausted, prevents the oil storage tank from being pumped out or blown out, and solves the problems of recovery of volatile light components of the oil and environmental pollution caused by harmful gas.

When the pressure in the oil storage tank is low and air supplement is needed, the atmosphere enters from a breathing hole 2 of a breathing valve rain cover 1, a filter screen 4 and a breathing pipe 3 and pushes against an air inlet valve core 17, the valve core swings upwards along with a valve core rod 16, the valve core rod rotates along with a rotating shaft 14, the valve core is opened and enters the oil storage tank through a right-angle communicating pipe 9 for air supplement, when the pressure in the oil storage tank is balanced with the atmospheric pressure, the valve core of the air inlet valve is closed under the action of gravity and a reaction spring, and at the moment, an exhaust valve cannot be opened; when the pressure in the oil storage tank is higher than the atmospheric pressure, the exhaust valve core 23 is pushed, the exhaust valve core swings upwards along with the exhaust valve core rod 22, the exhaust valve core rod rotates along with the exhaust valve rotating shaft 20, the exhaust valve core is opened, gas in the oil storage tank is adsorbed by activated carbon, light oil components and harmful gas in the gas are adsorbed and flow into the exhaust pipe 10 and the air outlet of the annular pipe 11 to be discharged, the light oil components enter the liquid level of the transformer oil, the light components in the gas are dissolved and adsorbed by the transformer oil, harmless gas is discharged into the atmosphere from the breather valve, the light oil floats on the surface of the transformer oil, when the oil storage tank is replenished, the air inlet pipe is recycled into the oil storage tank, the oil quality is guaranteed.