Tank type VOCs waste gas treatment device

Abstract

The utility model is suitable for the technical field of waste gas treatment, and provides a tank type VOCs waste gas treatment device which comprises a box body and a partition plate installed in the box body, and the partition plate divides the interior of the box body into a condensation cavity and an adsorption cavity; the heat preservation layer is assembled in the condensation cavity; the refrigerator is arranged on one side of the box body; the mounting groove is formed in one side of the heat preservation layer, and a temperature sensor is fixedly mounted in the mounting groove; the group of gas phase nets are arranged in the condensation cavity; the adsorption mechanism is arranged in the adsorption cavity and is used for adsorbing residual waste gas in the gas; the collecting mechanism is arranged on the box body and is used for collecting the VOCs dropping liquid. The tank type VOCs waste gas treatment device provided by the scheme has the advantages that the VOCs waste gas can be effectively purified by condensing and adsorbing the waste gas, and the treatment effect is relatively good.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and in particular relates to a tank-type VOCs waste gas treatment device. Background Art

[0002] VOCs contribute to the formation of ozone and secondary aerosols in the atmosphere, significantly impacting regional ozone and PM2.5 pollution. Most VOCs have a distinctive, unpleasant odor and are toxic, irritating, teratogenic, and carcinogenic. Benzene, toluene, and formaldehyde, in particular, can cause significant harm to human health. VOCs are key precursors to urban haze and photochemical smog, primarily originating from processes such as coal chemical industry, petrochemical industry, fuel and paint manufacturing, and solvent production and use.

[0003] At present, when treating VOCs waste gas, the condensation method is mostly used. The VOCs in the waste gas are cooled into liquid and separated, and then the separated gas is discharged. However, the discharged gas still contains trace amounts of waste gas, and the waste gas cannot be effectively treated, which can easily cause poisoning of workers. Utility Model Content

[0004] The utility model provides a tank-type VOCs waste gas treatment device, which aims to solve the problem that most waste gas treatment equipment proposed in the above background technology can only perform single separation treatment on VOCs waste gas and has poor treatment effect.

[0005] In order to solve the above problems, the present invention is implemented as follows: a tank-type VOCs waste gas treatment device includes: a box body and a partition installed in the box body, the partition body partitions the box body to form a condensation chamber and an adsorption chamber; an insulation layer assembled in the condensation chamber; a refrigerator provided on one side of the box body; an installation groove provided on one side of the insulation layer, a temperature sensor fixedly installed in the installation groove; a group of gas phase networks installed in the condensation chamber; an adsorption mechanism provided in the adsorption chamber for adsorbing residual waste gas in the gas; and a collection mechanism provided on the box body for collecting VOCs droplets.

[0006] Preferably, the adsorption mechanism includes multiple support plates and molecular sieves, and the multiple support plates are fixedly installed in the adsorption chamber. The multiple support plates separate the adsorption chamber to form a serpentine cavity. The tops of the multiple support plates are inclined, and the molecular sieve is arranged in the adsorption chamber.

[0007] Preferably, the collecting mechanism includes a one-way screw, an annular scraper, a connecting plate, a rotating rod, a group of bevel gears, a motor and a transparent collecting box. Mounting blocks are installed on the gas phase network and the thermal insulation layer. The one-way screw is rotatably installed on the two mounting blocks. The annular scraper is slidably arranged in the condensation chamber. The connecting plate is fixedly installed on the annular scraper. The connecting plate is threadedly connected to the one-way screw. The rotating rod is rotatably installed on one side of the box body. The rotating rod extends into the condensation chamber. A group of bevel gears are respectively fixedly sleeved on the one-way screw and the rotating rod. A group of bevel gears are meshed with each other. The motor is fixedly installed on one side of the box body. The output shaft of the motor is fixedly connected to the rotating rod. The transparent collecting box is arranged at the bottom of the box body. The transparent collecting box is detachably connected to the drain pipe of the box body.

[0008] Preferably, a guide rod is fixedly mounted on the thermal insulation layer, a slider is fixedly mounted on the annular scraper, and the slider is slidably connected to the guide rod.

[0009] Preferably, an exhaust pipe is fixedly mounted on the partition, the exhaust pipe is respectively connected to the condensation chamber and the adsorption chamber, a connecting frame is fixedly mounted in the exhaust pipe, and an exhaust cover is threadedly mounted on the top of the exhaust pipe.

[0010] Preferably, a connecting plate is placed on the connecting frame, a sealing ring is sleeved on the connecting plate, a support frame is fixedly installed on one side of the inner wall of the exhaust pipe, a reset spring and a telescopic rod are fixedly installed on the support frame, and the top ends of the reset spring and the telescopic rod are fixedly connected to the connecting plate.

[0011] Preferably, a lid is hinged on the top of the box body, a discharge port is opened on one side of the box body, the discharge port is communicated with the adsorption chamber, and a cover plate is detachably mounted on the discharge port.

[0012] Compared with the related art, the tank-type VOCs waste gas treatment device provided by this utility model has the following advantages:

[0013] Beneficial effects:

[0014] 1. By lowering the temperature in the condensation chamber to below the smoke point of VOCs, the saturated vapor pressure of VOCs will also decrease, causing them to condense from the gas phase to form liquid, thereby achieving the separation of VOCs and exhaust gas. The separation is relatively fast, and the residual exhaust gas in the gas is adsorbed by the adsorption mechanism, thereby effectively purifying the VOCs exhaust gas with a good treatment effect.

[0015] 2. The annular scraper scrapes off the dripping liquid on the inner wall of the insulation layer, so that the dripping liquid is discharged into the transparent collection box through the drainage pipe, and the dripping liquid is collected centrally, which is convenient for subsequent centralized cleaning. The transparent collection box is transparent, which makes it easy for people to know the collection status of the transparent collection box, thereby facilitating the subsequent timely replacement of the transparent collection box. The slider slides along the guide rod to guide the annular scraper, thereby ensuring that the annular scraper does not rotate in place, which is conducive to the scraping operation of the dripping liquid;

[0016] 3. The setting of the exhaust cover can ensure that the molecular sieve will not be discharged into the condensation chamber through the exhaust pipe. At the same time, the mesh plate on the exhaust cover will not affect the exhaust of the exhaust pipe. The connecting frame is sealed by the connecting plate, so that the gas is intermittently exhausted, which is beneficial to the condensation treatment of the exhaust gas.

[0017] Compared with the existing technology, the tank-type VOCs waste gas treatment device provided by this solution can effectively purify VOCs waste gas by condensing and adsorbing the waste gas, and has the advantage of better treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of a tank-type VOCs waste gas treatment device provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of a tank-type VOCs waste gas treatment device provided by the utility model;

[0020] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG;

[0021] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0022] Figure numerals: 1. Box body; 2. Partition; 3. Insulation layer; 4. Refrigerator; 5. Mounting groove; 6. Temperature sensor; 7. Gas phase network; 8. Support plate; 9. Molecular sieve; 10. One-way screw; 11. Annular scraper; 12. Connecting plate; 13. Rotating rod; 14. Bevel gear; 15. Motor; 16. Transparent collecting box; 17. Guide rod; 18. Slider; 19. Exhaust pipe; 20. Connecting frame; 21. Exhaust cover; 22. Connecting plate; 23. Return spring; 24. Telescopic rod. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the description of the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0024] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The present invention provides a tank-type VOCs waste gas treatment device, such as Figure 1-4 As shown, the tank-type VOCs waste gas treatment device includes: a box body 1 and a partition 2 installed in the box body 1, the partition 2 partitions the box body 1 to form a condensation chamber and an adsorption chamber; a heat preservation layer 3 assembled in the condensation chamber; a refrigerator 4 provided on one side of the box body 1; a mounting groove 5 provided on one side of the heat preservation layer 3, a temperature sensor 6 fixedly installed in the mounting groove 5; a group of gas phase networks 7 installed in the condensation chamber; an adsorption mechanism provided in the adsorption chamber for adsorbing residual waste gas in the gas; and a collection mechanism provided on the box body 1 for collecting VOCs droplets.

[0026] In this embodiment, when it is necessary to purify the exhaust gas, the refrigerator 4 is first started to cool the exhaust gas and discharge the cold air into the condensation chamber, so that the temperature in the condensation chamber is reduced to below the smoke point of the VOCs. At the same time, the temperature sensor 6 monitors the temperature in the condensation chamber. When the temperature in the condensation chamber reaches the specified value, the air inlet pipe on the left side of the box body 1 is connected to the external air supply equipment, and then the valve on the air inlet pipe is opened to allow the exhaust gas to enter the condensation chamber through the air inlet pipe. In the process of temperature reduction, the saturated vapor pressure of VOCs will also decrease, causing it to condense from the gas phase to form liquid. These condensed liquids will form droplets on the gas phase network 7 and the inner wall of the insulation layer 3, thereby realizing the separation of VOCs and exhaust gas. After that, the collection mechanism is operated regularly to collect the droplets for subsequent centralized cleaning. The condensed gas enters the adsorption chamber through the exhaust pipe 19, so that the adsorption mechanism adsorbs the residual exhaust gas in the gas, thereby effectively purifying the VOCs exhaust gas, and the treatment effect is good.

[0027] In a further preferred embodiment of the present invention, the adsorption mechanism includes multiple support plates 8 and molecular sieves 9, and the multiple support plates 8 are fixedly installed in the adsorption chamber. The multiple support plates 8 separate the adsorption chamber to form a serpentine cavity. The tops of the multiple support plates 8 are all inclined, and the molecular sieves 9 are arranged in the adsorption chamber.

[0028] In this embodiment, through the setting of the serpentine cavity, the gas can be evenly contacted with the molecular sieve 9, so that the molecular sieve 9 adsorbs the exhaust gas, and the VOCs in the exhaust gas are adsorbed and concentrated by the molecular sieve 9, and then the gas phase temperature is increased (desorption) to remove the organic matter. It can not only effectively control the organic exhaust gas, but also recover the organic solvent, which not only solves the environmental pollution problem, but also creates considerable economic benefits.

[0029] In a further preferred embodiment of the present invention, the collection mechanism includes a one-way screw 10, an annular scraper 11, a connecting plate 12, a rotating rod 13, a set of bevel gears 14, a motor 15 and a transparent collection box 16. The gas phase network 7 and the insulation layer 3 are both equipped with mounting blocks. The one-way screw 10 is rotatably mounted on the two mounting blocks. The annular scraper 11 is slidably disposed in the condensing chamber. The connecting plate 12 is fixedly mounted on the annular scraper 11. The connecting plate 12 is threaded with the one-way screw 10. The rotating rod 13 is rotatably mounted on one side of the casing 1, and the rotating rod 13 extends into the condensing chamber. A group of bevel gears 14 are fixedly sleeved on the one-way screw 10 and the rotating rod 13, respectively. A group of bevel gears 14 are engaged with each other. The motor 15 is fixedly mounted on one side of the casing 1, and the output shaft of the motor 15 is fixedly connected to the rotating rod 13. The transparent collecting box 16 is provided at the bottom of the casing 1, and the transparent collecting box 16 is detachably connected to the drain pipe of the casing 1.

[0030] In this embodiment, when it is necessary to collect the dripping liquid, the motor 15 is first started so that the output shaft of the motor 15 drives the bevel gear 14 to rotate, and the bevel gear 14 drives the one-way screw 10 to rotate, and the one-way screw 10 drives the annular scraper 11 to slide, and the annular scraper 11 slides along the condensation chamber, so that the annular scraper 11 scrapes off the dripping liquid on the inner wall of the insulation layer 3, so that the dripping liquid is discharged into the transparent collection box 16 through the drain pipe, and the dripping liquid is collected in a centralized manner. Since the transparent collection box 16 is transparent, it is convenient for people to know the collection status of the transparent collection box 16, so that it is convenient to replace the transparent collection box 16 in time.

[0031] In a further preferred embodiment of the present invention, a guide rod 17 is fixedly mounted on the thermal insulation layer 3 , and a slider 18 is fixedly mounted on the annular scraper 11 , and the slider 18 is slidably connected to the guide rod 17 .

[0032] In this embodiment, when the annular scraper 11 slides, it drives the slider 18 to slide synchronously, so that the slider 18 slides along the guide rod 17 to guide the annular scraper 11, thereby ensuring that the annular scraper 11 will not rotate in place, which is beneficial to the scraping operation of dripping liquid.

[0033] In a further preferred embodiment of the present invention, an exhaust pipe 19 is fixedly installed on the partition 2, and the exhaust pipe 19 is respectively connected to the condensation chamber and the adsorption chamber. A connecting frame 20 is fixedly installed in the exhaust pipe 19, and an exhaust cover 21 is threadedly installed on the top of the exhaust pipe 19.

[0034] In this embodiment, the provision of the exhaust cover 21 can ensure that the molecular sieve 9 will not be discharged into the condensation chamber through the exhaust pipe 19 , and the mesh plate on the exhaust cover 21 will not affect the exhaust of the exhaust pipe 19 .

[0035] In a further preferred embodiment of the present invention, a connecting plate 22 is placed on the connecting frame 20, a sealing ring is sleeved on the connecting plate 22, a support frame is fixedly installed on one side of the inner wall of the exhaust pipe 19, a return spring 23 and a telescopic rod 24 are fixedly installed on the support frame, and the top ends of the return spring 23 and the telescopic rod 24 are fixedly connected to the connecting plate 22.

[0036] In this embodiment, when the exhaust gas and cold air in the condensation chamber enter and cause the pressure in the condensation chamber to rise, the air pressure in the condensation chamber pushes the connecting plate 22 upward, causing the connecting plate 22 to slide away from the connecting frame 20. At the same time, the reset spring 23 is stretched, causing the telescopic rod 24 to guide the connecting plate 22. When the connecting plate 22 moves away from the connecting frame 20, the gas is discharged into the adsorption chamber through the notch of the connecting frame 20. When the air pressure in the condensation chamber drops, the reset spring 23 contracts, causing the connecting plate 22 to return to its position.

[0037] In a further preferred embodiment of the present invention, a lid is hinged on the top of the box body 1, a discharge port is opened on one side of the box body 1, the discharge port is communicated with the adsorption chamber, and a cover plate is detachably installed on the discharge port.

[0038] In this embodiment, the provision of the cover plate facilitates the replacement of the molecular sieve 9 in the adsorption chamber, and the replacement is relatively convenient.

[0039] In summary, compared with related technologies, this device can effectively purify VOCs waste gas by condensing and adsorbing the waste gas, and has the advantage of better treatment effect.

[0040] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A tank-type VOCs waste gas treatment device, characterized in that: include: A box body and a partition installed in the box body, wherein the partition divides the box body into a condensation chamber and an adsorption chamber; A thermal insulation layer mounted in the condensation chamber; A refrigerator disposed on one side of the box; An installation groove is provided on one side of the thermal insulation layer, and a temperature sensor is fixedly installed in the installation groove; A group of gas phase nets installed in the condensing chamber; An adsorption mechanism disposed in the adsorption chamber for adsorbing residual waste gas in the gas; A collecting mechanism is provided on the box body for collecting VOCs droplets.

2. The tank-type VOCs waste gas treatment device according to claim 1, characterized in that: The adsorption mechanism includes multiple support plates and molecular sieves. The multiple support plates are fixedly installed in the adsorption chamber. The multiple support plates separate the adsorption chamber to form a serpentine cavity. The tops of the multiple support plates are inclined. The molecular sieve is arranged in the adsorption chamber.

3. The tank-type VOCs waste gas treatment device according to claim 2, characterized in that: The collecting mechanism comprises a one-way screw, an annular scraper, a connecting plate, a rotating rod, a group of bevel gears, a motor and a transparent collecting box. Mounting blocks are installed on the gas phase net and the thermal insulation layer. The one-way screw is rotatably installed on the two mounting blocks. The annular scraper is slidably arranged in the condensing chamber. The connecting plate is fixedly installed on the annular scraper. The connecting plate is threadedly connected to the one-way screw. The rotating rod is rotatably installed on one side of the box body. The rotating rod extends into the condensing chamber. A group of bevel gears are respectively fixedly mounted on the one-way screw and the rotating rod. A group of bevel gears are meshed with each other. The motor is fixedly installed on one side of the box body. The output shaft of the motor is fixedly connected to the rotating rod. The transparent collecting box is arranged below the box body. The transparent collecting box is detachably connected to the drain pipe of the box body.

4. The tank-type VOCs waste gas treatment device according to claim 3, characterized in that: A guide rod is fixedly mounted on the heat-insulating layer, a slider is fixedly mounted on the annular scraper, and the slider is slidably connected to the guide rod.

5. The tank-type VOCs waste gas treatment device according to claim 1, characterized in that: An exhaust pipe is fixedly installed on the partition, and the exhaust pipe is respectively connected with the condensation chamber and the adsorption chamber. A connecting frame is fixedly installed in the exhaust pipe, and an exhaust cover is threadedly installed on the top of the exhaust pipe.

6. The tank-type VOCs waste gas treatment device according to claim 5, characterized in that: A connecting plate is placed on the connecting frame, a sealing ring is sleeved on the connecting plate, a support frame is fixedly installed on one side of the inner wall of the exhaust pipe, a return spring and a telescopic rod are fixedly installed on the support frame, and the top ends of the return spring and the telescopic rod are fixedly connected to the connecting plate.

7. The tank-type VOCs waste gas treatment device according to claim 1, characterized in that: A cover is hinged on the top of the box body, a discharge port is opened on one side of the box body, the discharge port is communicated with the adsorption chamber, and a cover plate is detachably mounted on the discharge port.

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