CN214513547U

CN214513547U - Vertical oil-gas separation device

Info

Publication number: CN214513547U
Application number: CN202023193331.1U
Authority: CN
Inventors: 许海涛; 王文彬; 周培好
Original assignee: Beijing Aerospace Sanfa High Tech Co Ltd
Current assignee: Beijing Aerospace Sanfa High Tech Co Ltd
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-10-29
Anticipated expiration: 2030-12-27

Abstract

A vertical oil-gas separation device comprises a demister and an active carbon adsorption device; the gas outlet of the demister is communicated with the gas inlet of the active carbon adsorption device through a gas conveying pipeline; the demister comprises a shell which is formed by sequentially connecting an upper end enclosure, a cylinder section and a lower end enclosure, the lower part of the cylinder section is provided with an air inlet, and the top of the upper end enclosure is provided with a gas outlet of the demister; a baffle plate demister is arranged above the air inlet in the cylinder section, a wire mesh demister is arranged at the top in the cylinder section, and the wire mesh demister is positioned above the baffle plate demister; and a spraying and flushing device is arranged on the side wall of the shell section. The bottom of the lower seal head is provided with a liquid outlet. The vertical oil-gas separation device of the utility model has small occupied area, is suitable for the oil-gas separation of large-flow gas, is easy to install, simple to operate and good in defoaming effect, and can realize 99 percent removal of oil drops; meanwhile, the device can adapt to any gas with liquid, effectively reduce the blocking condition of the demister and ensure the long-time use of the demister.

Description

Vertical oil-gas separation device

Technical Field

The utility model relates to a gas-liquid separation technical field, concretely relates to vertical oil-gas separation device.

Background

When a flame tube oil mist field test and a nozzle thermal protection test are carried out, exhaust gas contains a large amount of kerosene vapor and vapor droplets, and the kerosene vapor and the vapor droplets are discharged into the atmosphere after oil-gas separation treatment. The fuel concentration in the exhaust gas meets the secondary emission standard of the Integrated emission Standard for air pollutants (GB 16297 and 1996), namely the maximum allowable emission concentration of non-methane hydrocarbon is 120mg/m3, and the maximum allowable emission rate is 53kg/h (the exhaust height is 30 m).

As early as the thirty years of the last century, demisters were invented for the needs of industrial production. The demister can be divided into a plurality of types according to the application or structure of the demister, such as a louver type separator, a gravity settling type separator and a cyclone plate separator, but the separators have low separation efficiency and are not easy to separate mist with smaller particle size; although the wire mesh demister can separate common mist, the mist is required to be clean, the airflow velocity is small, the resistance is reduced greatly, the service cycle is short, and the equipment investment is large.

Therefore, the problems which need to be solved urgently in a flame tube oil mist field test and a nozzle heat protection test of a novel efficient demister with high research and production separation efficiency, small resistance reduction, large allowable air flow speed and strong anti-blocking function are solved.

Disclosure of Invention

The technical solution problem of the utility model is that: overcomes the defects of the prior art and provides a vertical oil-gas separation device.

The technical solution of the utility model is that:

a vertical oil-gas separation device comprises a demister and an active carbon adsorption device; the gas outlet of the demister is communicated with the gas inlet of the active carbon adsorption device through a gas conveying pipeline; the demister comprises a shell which is formed by sequentially connecting an upper end enclosure, a cylinder section and a lower end enclosure, the lower part of the cylinder section is provided with an air inlet, and the top of the upper end enclosure is provided with a gas outlet of the demister; a baffle plate demister is arranged above the air inlet in the cylinder section, a wire mesh demister is arranged at the top in the cylinder section, and the wire mesh demister is positioned above the baffle plate demister; a spraying and washing device is arranged on the side wall of the shell section; the bottom of the lower seal head is provided with a liquid outlet.

Further, the activated carbon adsorption device comprises an activated carbon box body which is horizontally arranged; along the gas outlet exhaust gas's of demister direction of flow, vertical active carbon adsorption case and horizontal active carbon adsorption case have set gradually in the active carbon box, and the active carbon box is provided with gas outlet, and simultaneously, active carbon bottom of the box portion is provided with the active carbon adsorption device leakage fluid dram.

Furthermore, the bottom of the activated carbon box body is provided with supporting legs, and/or the bottom of the lower end socket is provided with demister supporting legs.

Furthermore, the spraying and flushing device comprises a first spraying and flushing device, a second spraying and flushing device, a third spraying and flushing device and a fourth spraying and flushing device.

Further, the baffling board demister includes baffling board piece and barb, and the barb sets up the department of buckling at the baffling board piece.

Further, the baffled demister comprises a plurality of baffling plates.

Further, a plurality of baffle plates are arranged in parallel.

Furthermore, a barb is arranged at the bent part of each baffle plate.

Furthermore, the baffle plate has 2, 3 or 4 bends.

Compared with the prior art, the utility model the advantage lie in:

1. the utility model discloses a vertical oil-gas separation device adopts the baffling board demister to carry out 100% effective separation to 20um-50 um's oil drop and liquid drop, adopts the silk screen demister to carry out 99% effective separation to 5um-20 um's oil drop and liquid drop, in addition, can realize oil-gas separation's purpose according to the oil-gas separation demand of difference, through the inter-plate distance of the baffling board of adjustment baffling board demister to and the thickness of silk screen demister.

2. The utility model discloses a vertical oil-gas separation device adopts and sprays washing unit to wash baffling board demister, will long-term operation back attached to the scale deposit on baffling board demister wash and get rid of.

3. The vertical oil-gas separation device of the utility model has small occupied area, is suitable for the oil-gas separation of large-flow gas, is easy to install, simple to operate and good in defoaming effect, and can realize 99 percent removal of oil drops; meanwhile, the device can adapt to any gas with liquid, effectively reduce the blocking condition of the demister and ensure the long-time use of the demister.

4. The utility model discloses a vertical oil-gas separation device sets up the active adsorption carbon device, adsorbs to the oil drop below 5 mu m, adsorbs can make organic waste gas purification efficiency reach 90-95%, and then guarantees to pass through the utility model discloses a gas after vertical oil-gas separation device handles accords with national emission standard, in addition, can use hot-air desorption regeneration messenger active carbon to drop into use again or change after the active carbon adsorption saturation.

Drawings

Fig. 1 is a schematic structural diagram of the vertical oil-gas separation device of the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is a schematic diagram of the demister with two S2 type baffles in the vertical oil-gas separator of the present invention.

Fig. 4 is a schematic diagram of the demister with three barbs S3-shaped baffle plates in the vertical oil-gas separation device of the present invention.

Fig. 5 is a schematic diagram of the demister with four barbs S4-shaped baffle plates in the vertical oil-gas separation device of the present invention.

Fig. 6 is a schematic view of the working principle of the activated carbon adsorption device in the vertical oil-gas separation device of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-6, a vertical oil-gas separation device 200 comprises a demister 210 and an activated carbon adsorption device 220; the gas outlet of the demister 210 is communicated with the gas inlet of the activated carbon adsorption device 220 through a gas conveying pipeline 230; the demister 210 comprises a shell body formed by sequentially connecting an upper sealing head 214, a cylinder section 215 and a lower sealing head 216, the lower part of the cylinder section 215 is provided with an air inlet 213, and the top of the upper sealing head 214 is provided with a gas outlet of the demister 210; a baffle plate demister 211 is arranged in the cylindrical shell 215 above the air inlet 213, a wire mesh demister 212 is arranged at the top in the cylindrical shell 215, and the wire mesh demister 212 is arranged above the baffle plate demister 211; the demister 210 innovatively adopts a baffle demister 211 and a wire mesh demister 212 combined high-efficiency mold discharging device, wherein the baffle plate demister effectively separates oil drops and liquid drops of 20-50 um by 100%; the wire mesh demister can effectively separate 99% of liquid drops below 20um and above 5 um; aiming at the characteristics that the flow channel of the baffle plate demister is large and is not easy to block, gas firstly enters the baffle plate demister to preferentially remove oil drops and liquid drops of 20-50 um, and the subsequent screen mesh demister is protected from being blocked due to large oil quantity.

Preferably, the bottom of the lower end enclosure 216 is provided with demister support legs 219, and the elevation of the demister 210 is adjusted by adjusting the demister support legs 219, so as to adapt to pipelines with different elevations.

Preferably, the baffle demister 211 comprises a baffle plate 2111 and a barb 2112, wherein the barb 2112 is arranged at the bent part of the baffle plate 2111; the baffle demister 211 comprises a plurality of baffle plates 2111 arranged in parallel, and a barb 2112 is arranged at the bent part of each baffle plate 2111.

The utility model provides a baffling board demister 211 separates according to the principle of physical inertia, and when the air current of smuggleing secretly liquid drop or solid particle passes through the baffling slab that special design takes shape with 3-9 m/s' speed, at the turn of baffling slab, liquid foam or solid particle are under the inertial force effect, and the direction of motion changes with the direction of motion of gas for liquid foam or solid particle and gas produce the separation. The separation process can be divided into the following three steps:

1. the gas is divided into a plurality of individual flow channels.

2. The inertial force impacts the droplets on the baffle plate.

3. The drip membrane moves forward to the barb and is detached.

The structure is characterized in that the baffle plate demister has different forms according to different purposes, wherein the S shape is an impact type high-efficiency demister mainly applied to airflow flowing in the horizontal direction, higher surface speed is allowed under the conditions of low resistance reduction and high-efficiency separation, and the principle schematic diagrams of the S2 type baffle plate demister with two barbs, the S3 type baffle plate demister with three barbs and the S4 type baffle plate demister with four barbs are shown in the attached drawing according to the size of the limit droplet diameter of mist, the mist load and dust in the airflow.

The baffle demister 211 can effectively remove liquid drops with different sizes by changing baffle plate forms, such as baffle angles of 60 degrees, 90 degrees or 120 degrees, and grooved plates, and can achieve the best defoaming effect of liquid drops with the size of 30 mu m by adjusting the distance between the baffles.

The wire mesh demister 212 achieves the best defoaming effect of 5 μm droplets by changing the type of wire mesh and the thickness of the wire mesh demister, for example, the types of wire mesh are SP type, HP type, DP type and HR type.

The side walls of the bowl section 215 are fitted with spray rinsing means, preferably comprising a first spray rinsing means 2171, a second spray rinsing means 2172, a third spray rinsing means 2173 and a fourth spray rinsing means 2174. The baffle plate demister 211 is washed by the spray head, and scales attached to the baffle plate demister 211 after long-term operation are washed and removed.

The bottom of the lower head 216 is provided with a liquid outlet 218 for intensively discharging the discharged liquid.

The activated carbon adsorption device 220 comprises an activated carbon box 221 which is horizontally arranged; along the flow direction of the gas outlet exhaust gas of the demister, a vertical activated carbon adsorption tank 222 and a horizontal activated carbon adsorption tank 223 are sequentially arranged in the activated carbon tank body, the activated carbon tank body is provided with a gas outlet 225, and meanwhile, the bottom of the activated carbon tank body is provided with an activated carbon adsorption device liquid outlet 224. Preferably, the bottom of the activated carbon box 221 is provided with a support leg 226, so that the elevation of the activated carbon box 221 can be adjusted through the support leg 226. Set up the active carbon adsorption device, adsorb to the oil drop below 5 mu m, adsorb and can make organic waste gas purification efficiency reach 90-95%, and then guarantee to pass through the utility model discloses a gas after vertical oil-gas separation device handles accords with national emission standard, in addition, can use hot air desorption regeneration to make the active carbon come into use again or change after the active carbon adsorption saturation.

The utility model discloses a vertical oil-gas separation device's working process as follows:

oily gas enters a shell of the demister 210 through an air inlet 213, airflow enters a baffle plate demister 211 at the flow rate of 3-6 m/s, the baffle plate demister 211 divides the airflow into a plurality of single-stranded flow channels through a baffle plate 2111, oil drops collide on the baffle plate 2111 through inertia effect after the direction of the airflow is changed, an oil drop film moves forwards to a barb and is separated, 20-50 um oil drops carried in the airflow are removed, and then the oil drops enter a wire mesh demister 212 to separate the 5-20 um oil drops and the liquid drops; however, the combined demister of the baffle demister 211 and the wire mesh demister 212 in the demister 210 does not effectively remove oil droplets below 5um, and therefore, the activated carbon adsorption device 220 is connected to the gas outlet of the demister 210 through the pipe 230, and the gas discharged from the gas outlet of the demister 210 adsorbs organic waste gas through fine pores of activated carbon, so that the gas emission reaches the emission standard.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vertical oil-gas separation device is characterized by comprising a demister and an active carbon adsorption device; the gas outlet of the demister is communicated with the gas inlet of the active carbon adsorption device through a gas conveying pipeline;

the demister comprises a shell which is formed by sequentially connecting an upper end enclosure, a cylinder section and a lower end enclosure, the lower part of the cylinder section is provided with an air inlet, and the top of the upper end enclosure is provided with a gas outlet of the demister;

a baffle plate demister is arranged above the air inlet in the cylinder section, a wire mesh demister is arranged at the top in the cylinder section, and the wire mesh demister is positioned above the baffle plate demister;

a spraying and washing device is arranged on the side wall of the shell ring,

the bottom of the lower seal head is provided with a liquid outlet.

2. The apparatus of claim 1, wherein the activated carbon adsorption unit comprises a horizontally disposed activated carbon tank;

along the gas outlet exhaust gas's of demister direction of flow, vertical active carbon adsorption case and horizontal active carbon adsorption case have set gradually in the active carbon box, and the active carbon box is provided with gas outlet, and simultaneously, active carbon bottom of the box portion is provided with the active carbon adsorption device leakage fluid dram.

3. The device of claim 2, wherein the bottom of the activated carbon box body is provided with supporting legs,

and/or

The bottom of the lower end socket is provided with a demister supporting leg.

4. The apparatus of claim 1, wherein the spray rinsing device comprises a first spray rinsing device, a second spray rinsing device, a third spray rinsing device, and a fourth spray rinsing device.

5. The apparatus of claim 1, wherein the baffle demister comprises a baffle plate and a barb, the barb being disposed at a bend of the baffle plate.

6. The apparatus of claim 5 wherein the baffled demister comprises a plurality of baffle plates.

7. The apparatus of claim 6, wherein the plurality of baffle plates are arranged in parallel.

8. The apparatus of claim 7, wherein each baffle plate is provided with a barb at the bend.

9. The apparatus of claim 5, wherein the baffle plates have 2, 3, or 4 bends.