Oil gas and VOCS purification equipment with high purification efficiency

Abstract

The invention belongs to the technical field of purification equipment, and particularly relates to oil gas and VOCS purification equipment with high purification efficiency. The oil gas and VOCS purification equipment comprises a shell, a gas inlet is formed in the end of the shell, the inner side of the gas inlet is connected with a gas inlet pipe, and a pretreatment component comprises a flow equalizing plate arranged on the inner side of the shell and three sections of adsorbent partition plates arranged in the vertical direction of the inner side of the shell; the adsorbent partition plates are obliquely arranged and are of a hollow structure, the three sections of adsorbent partition plates are connected end to end to form an inclined N-shaped structure, an upper end opening of the N-shaped structure corresponds to the rear portion of the flow equalizing plate, airflow input through the air inlet is evenly distributed through the arranged flow equalizing plate, and therefore gas is evenly conveyed to the adsorbent partition plates; and the three sections of obliquely arranged adsorbent partition plates are additionally arranged in the shell, so that the air passing area is ensured to be large enough, the tail gas has enough standing time, and the adsorption and purification effects are better.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas purification, in particular to an oil and gas and VOCS purification device with high purification efficiency. Background Art

[0002] The physical definition of volatile organic compounds (VOCs) refers to any organic compound with an initial boiling point less than or equal to 250°C at 101.325 kPa. From the perspective of improving ambient air quality and strengthening VOCs pollution prevention and control, its photochemical definition refers to organic compounds that participate in atmospheric photochemical reactions, or organic compounds measured or determined by prescribed methods. Generally speaking, VOCs include non-methane hydrocarbons (alkanes, alkenes, alkynes, aromatic hydrocarbons, etc.), oxygen-containing organic matter (aldehydes, ketones, alcohols, ethers, etc.), chlorine-containing organic matter, nitrogen-containing organic matter, sulfur-containing organic matter, etc., and are important precursors to the formation of ozone (O3) and fine particulate matter (PM2.5) pollution. VOCs are the second most widely distributed and complex atmospheric pollutant after particulate matter. They have three main hazards to the ecological environment system and human health: first, some types are toxic and carcinogenic, which are harmful to human health; second, they participate in atmospheric photochemical reactions with nitrogen oxides to form ozone pollution; third, they generate secondary aerosols through chemical reactions, which are important prerequisites for fine particulate matter (PM2.5). Controlling and reducing the emission of volatile organic compounds (hereinafter referred to as VOCs) from various pollution sources is an important way to reduce the concentration of atmospheric ozone and PM2.5 and improve air quality.

[0003] The working principle of the VOCs adsorption device is that the exhaust gas is powered by a fan, and enters the adsorption box under negative pressure and then enters the adsorption layer. The exhaust gas is brought into contact with the porous activated carbon adsorbent with a large surface area by utilizing the characteristics of the activated carbon or molecular sieve, which have multiple microporous structures, large specific surface area, and strong adsorption capacity. The pollutants in the exhaust gas are adsorbed on the inner surface of the activated carbon or molecular sieve, separating the pollutants from the gas, and the purified gas is discharged into the air.

[0004] Traditional adsorption purification devices are mostly flat-bed structures with a single overall purification structure and a small available adsorption area per unit volume, resulting in poor adsorption effect, incomplete exhaust gas purification, and the exhaust gas may contain substances that are harmful to human health. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide an oil and gas and VOCS purification equipment with high purification efficiency. After the exhaust gas is pretreated by the pretreatment component, it enters the condensation tank and the polymer membrane filter tank for further deep purification to ensure the cleanliness of the exhaust gas treatment.

[0007] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] An oil, gas and VOCS purification device with high purification efficiency, comprising:

[0009] A shell body connected to the base frame, an air inlet is provided at the end of the shell body, and an air inlet pipe is connected to the inner side of the air inlet;

[0010] The pretreatment component is connected to the inner side of the shell, including a flow equalizing plate placed on the inner side of the shell, and three sections of adsorbent partitions arranged in the vertical direction along the inner side of the shell. The adsorbent partitions are arranged at an angle and have a hollow structure. The three sections of the adsorbent partitions are connected end to end to form an inclined N-shaped structure. The upper port of the N-shaped structure is arranged corresponding to the rear of the flow equalizing plate, and the lower port of the N-shaped structure is connected to the discharge port of the equipment.

[0011] As a preferred solution of the oil, gas and VOCS purification equipment with high purification efficiency described in the present invention, a groove is opened on the inner side of the shell, the flow equalizing plate is clamped in the groove, and the flow equalizing plate is arranged corresponding to the end of the intake pipe.

[0012] As a preferred solution of the oil, gas and VOCS purification equipment with high purification efficiency described in the present invention, an ultraviolet sterilization lamp is embedded in a position between two adjacent adsorbent partitions on the inner side of the shell.

[0013] As a preferred solution of the oil, gas and VOCS purification equipment with high purification efficiency described in the present invention, a thread groove is provided on the inner side of the air inlet, and an external thread that is threadedly matched with the thread groove is provided on the outer side of the air inlet pipe.

[0014] As a preferred solution of the oil, gas and VOCS purification equipment with high purification efficiency described in the present invention, an ultraviolet sterilization lamp is embedded in a position between two adjacent adsorbent partitions on the inner side of the shell, and a filter plate for preliminary filtering of the airflow is connected between the corresponding air inlet and the flow equalizing plate on the inner side of the shell.

[0015] As a preferred solution of the oil, gas and VOCS purification equipment with high purification efficiency described in the present invention, the bottom of the inner side of the condensing tank and the polymer membrane filter tank are connected to a collection box for collecting return oil, the size of the collection box is adapted to the inner diameter size of the condensing tank and the polymer membrane filter tank, and an oil outlet pipe is connected to the collection box, the end of the oil outlet pipe extends to the outside of the condensing tank and the polymer membrane filter tank, and is connected to a control valve for controlling the open and closed state.

[0016] Compared with existing technologies:

[0017] 1. The flow equalizer is used to evenly distribute the airflow input through the air inlet, so that the gas is evenly transmitted to the adsorbent partition. Then, three sections of inclined adsorbent partitions are added in the shell to ensure a sufficiently large wind area, so that the exhaust gas has enough residence time, and the adsorption and purification effect is better. In addition, the three sections of adsorbent partitions form an inclined N-shaped structure to form three-layer filtration layers. The three-layer filtration realizes three-level efficient purification of the exhaust gas.

[0018] 2. After the exhaust gas is pre-treated by the pre-treatment component, it enters the condensation tank and the polymer membrane filter tank for further deep purification to ensure the cleanliness of the exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the housing of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from top view;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of explosion structure;

[0023] Figure 4 This is a schematic diagram of the structure of the deep purification component of the present invention;

[0024] Figure 5 It is a structural schematic diagram of part A of the present invention.

[0025] In the figure: 100 shell, 110 air inlet, 111 threaded groove, 120 air inlet pipe, 121 external thread, 130 filter plate, 140 embedded groove, 200 pretreatment component, 210 flow equalizing plate, 220 adsorbent partition, 230 ultraviolet sterilization lamp, 300 deep purification component, 310 condensation tank, 311 air supply connecting pipe, 311a pressure switch, 320 polymer membrane filter tank, 321 three-way pipe one, 321a solenoid valve one, 330 three-way pipe two, 331 solenoid valve two, 400 collection box, 410 oil outlet pipe. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The present invention provides an oil and gas and VOCS purification device with high purification efficiency, please refer to Figure 1-5 , including a housing 100, a pre-treatment component 200 and a deep purification component 300;

[0031] Please continue reading Figure 1-3 , as a shell 100 connected to the base frame, an air inlet 110 is provided at the end of the shell 100, the air inlet 110 is connected to the inner side of the air inlet 110, the air inlet pipe 120 is connected to the deep purification component 300, and a filter plate 130 for preliminary filtering of the airflow is connected between the air inlet 110 and the equalizing plate 210 on the inner side of the shell 100, and an embedded groove 140 is provided on the inner side of the shell 100, and the embedded groove 140 is connected to the equalizing plate 210 as a connecting groove, and the card-fit connection method is convenient for subsequent maintenance and replacement operations of the equalizing plate 210;

[0032] A thread groove 111 is provided on the inner side of the air inlet 110, and an outer side of the air inlet pipe 120 is provided with an outer thread 121 which is threadedly matched with the thread groove 111. The thread groove 111 and the outer thread 121 are threadedly matched, and the air inlet pipe 120 is placed in the air inlet 110, so that the air inlet pipe 120 can be easily disassembled and assembled from the air inlet 110, and the air inlet pipe 120 can be easily cleaned and replaced later.

[0033] Please continue reading Figure 1-4 The pretreatment component 200 is connected to the inner side of the shell 100, and includes a flow equalizer 210 placed on the inner side of the shell 100. The flow equalizer 210 is clamped in the embedded groove 140, and the flow equalizer 210 is arranged corresponding to the end of the intake pipe 120. The flow equalizer 210 is used to distribute the airflow input through the air inlet 110 so that the gas is evenly transported to the adsorbent partition 220. Three sections of adsorbent partitions 220 are arranged along the vertical direction of the inner side of the shell 100. The adsorbent partitions 220 are inclined and have a hollow structure. The three sections of adsorbent partitions 220 are arranged along the inner side of the shell 100. The partitions 220 are connected end to end to form an inclined N-shaped structure, the upper port of the N-shaped structure is arranged corresponding to the rear of the equalizing plate 210, and the lower port of the N-shaped structure is connected to the discharge port of the equipment. By adding three sections of inclined adsorbent partitions 220 in the shell 100, the inclined arrangement of the adsorbent partitions 220 ensures a sufficiently large wind passing area, so that the exhaust gas has enough residence time, and the adsorption and purification effect is better. In addition, the three sections of adsorbent partitions form an inclined N-shaped structure to form a three-layer filter layer, and the three-layer filtration realizes three-level efficient purification of the exhaust gas;

[0034] An ultraviolet sterilization lamp 230 is embedded between two adjacent adsorbent partitions 220 on the inner side of the housing 100, and the ultraviolet sterilization lamp 230 further sterilizes the gas adsorbed and purified by the adsorbent partitions 220;

[0035] Please continue reading Figure 4 The rear end of the shell 100 is connected to a deep purification component 300, which includes a condensation tank 310 for condensing gas. The exhaust port of the condensation tank 310 is connected to the polymer membrane filter tank 320 through a three-way pipe 321. The condensation tank 310 condenses the gas input through the air supply pipe 311, and the exhaust gas after condensation is transported to two groups of polymer membrane filter tanks 320 for further membrane adsorption treatment to increase the cleanliness of the exhaust gas. There are two groups of polymer membrane filter tanks 320, and the two groups of polymer membrane filter tanks 320 are respectively connected to the two ports of the three-way pipe 321. The outer side of the three-way pipe 321 is connected to a solenoid valve 321a for controlling the air intake and closing state of the two polymer membrane filter tanks 320. The polymer membrane filter tank 320 assists in the adsorption of harmful substances on the exhaust gas through the polymer membrane arranged therein.

[0036] The output ports of the two polymer membrane filter tanks 320 are both connected to the two three-way pipes 330, the ends of the two three-way pipes 330 extend to the outside corresponding to the exhaust port of the pre-treatment component 200, and the outer side of the two three-way pipes 330 is connected to the second solenoid valve 331 for controlling the opening and closing state of the outlet port of the polymer membrane filter tank 320;

[0037] See also Figure 1 and Figure 5 The bottom of the inner side of the condensation tank 310 and the polymer membrane filter tank 320 are both threadedly connected with a collection box 400 for collecting return oil. The size of the collection box 400 is adapted to the inner diameter size of the condensation tank 310 and the polymer membrane filter tank 320, and the collection box 400 is connected with an oil outlet pipe 410. The end of the oil outlet pipe 410 extends to the outside of the condensation tank 310 and the polymer membrane filter tank 320. The outside of the oil outlet pipe 410 is threadedly connected with a control valve (not marked in the figure) for controlling the opening and closing state of the oil outlet pipe 410. During the gas supply process, the condensation tank 310 condenses the oil and gas, and the condensed oil falls into the return oil tank 400 under the action of gravity, is collected centrally, and is discharged through the oil pipe 410.

[0038] Embodiment 1:

[0039] The connection state of the inlet and outlet ports of the polymer membrane filter tank 320 is controlled by the solenoid valve 1 321a and the solenoid valve 2 331. Two groups of polymer membrane filter tanks 320 are provided. When in use, one of the polymer membrane filter tanks 320 is closed, and the gas is adsorbed and purified by the other polymer membrane filter tank 320 to play a role in preliminary purification. The return oil generated during the adsorption process is collected by the collection box 400 and discharged through the oil outlet pipe 410. The gas after condensation and adsorption enters the shell 100 through the intake pipe 120 for further purification.

[0040] Embodiment 2:

[0041] After the polymer membrane built in one of the polymer membrane filter tanks 320 is saturated with adsorption, the inlet and outlet ports of the polymer membrane filter tank 320 are closed through the solenoid valve 1 321a and the solenoid valve 2 331, and the other polymer membrane filter tank 320 continues to work to adsorb and purify the gas. The membrane core of the closed polymer membrane filter tank 320 is replaced for standby, and the cycle operation is repeated to achieve uninterrupted adsorption and purification.

[0042] Working principle: When the invention is in use, the flow equalizing plate 210 is set to evenly distribute the airflow input through the air inlet 110, so that the gas is evenly input to the adsorbent partition 220, and then three sections of inclined adsorbent partitions 220 are added in the shell 100 to ensure a sufficiently large wind pass area, so that the exhaust gas has enough residence time, and the adsorption and purification effect is better. In addition, the three sections of adsorbent partitions 220 form an inclined N-shaped structure to form three-layer filtration layers. The three-layer filtration realizes three-level efficient purification of the exhaust gas. In addition, the ultraviolet sterilization lamps 230 embedded between the adjacent adsorbent partitions 220 further sterilize the gas after adsorption and purification by the adsorbent partitions 220, thereby improving the purification effect.

[0043] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An oil, gas and VOCS purification device with high purification efficiency, characterized in that: include: A shell (100) connected to the base frame, an air inlet (110) is provided at the end of the shell (100), and the inner side of the air inlet (110) is connected to an air inlet pipe (120); The pretreatment component (200) is connected to the inner side of the shell (100), and comprises a flow equalizing plate (210) disposed on the inner side of the shell (100), and three sections of adsorbent partitions (220) arranged in a vertical direction along the inner side of the shell (100), wherein the adsorbent partitions (220) are arranged in an inclined manner and are hollow structures, wherein the three sections of the adsorbent partitions (220) are connected end to end to form an inclined N-shaped structure, wherein the upper port of the N-shaped structure is arranged corresponding to the rear of the flow equalizing plate (210), and the lower port of the N-shaped structure is connected to a discharge port of the equipment.

2. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 1 is characterized in that: The housing (100) is provided with an embedding groove (140) on the inner side, the flow equalizing plate (210) is clamped in the embedding groove (140), and the flow equalizing plate (210) is arranged corresponding to the end of the air intake pipe (120).

3. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 1 is characterized in that: An ultraviolet sterilization lamp (230) is embedded in a position between two adjacent adsorbent partitions (220) on the inner side of the housing (100).

4. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 1 is characterized in that: A thread groove (111) is provided on the inner side of the air inlet (110), and an external thread (121) threadedly engaged with the thread groove (111) is provided on the outer side of the air inlet pipe (120).

5. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 1 is characterized in that: An ultraviolet sterilization lamp (230) is embedded in a position between two adjacent adsorbent partitions (220) on the inner side of the shell (100), and a filter plate (130) for preliminary filtering of the airflow is connected between the corresponding air inlet (110) and the flow equalizing plate (210) on the inner side of the shell (100).

6. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 1 is characterized in that: The rear end of the shell (100) is connected to a deep purification component (300), and the deep purification component (300) includes a condensation tank (310) for condensing gas. The exhaust port of the condensation tank (310) is connected to a polymer membrane filter tank (320) via a three-way pipe (321). The polymer membrane filter tank (320) is provided with two groups, and the two groups of polymer membrane filter tanks (320) are respectively connected to the two ports of the three-way pipe (321). The outer side of the three-way pipe (321) is connected to a solenoid valve (321a) for controlling the air intake and closing state of the two polymer membrane filter tanks (320). The output ports of the two polymer membrane filter tanks (320) are both connected to the second three-way pipe (330), the end of the second three-way pipe (330) extends to the outside and is connected to the air inlet (110), and the outer side of the second three-way pipe (330) is connected to the second solenoid valve (331) for controlling the open and closed state of the outlet port of the polymer membrane filter tank (320).

7. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 6 is characterized in that: The air inlet port of the condensing tank (310) is connected to an air supply connecting pipe (311), and the outside of the air supply connecting pipe (311) is connected to a pressure switch (311a) for controlling the opening and closing state of the air supply connecting pipe (311).

8. The oil, gas and VOCS purification equipment with high purification efficiency according to claim 6 is characterized in that: The inner bottom of the condensing tank (310) and the polymer membrane filter tank (320) are both connected to a collecting box (400) for collecting return oil. The size of the collecting box (400) is adapted to the inner diameter of the condensing tank (310) and the polymer membrane filter tank (320), and an oil outlet pipe (410) is connected to the collecting box (400). The end of the oil outlet pipe (410) extends to the outside of the condensing tank (310) and the polymer membrane filter tank (320), and is connected to a control valve for controlling the open and closed state.

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