Waste gas cooling and discharging device

Abstract

The utility model discloses a waste gas cooling and discharging device which is characterized in that a drying chamber is respectively connected with a plurality of heating boxes through a plurality of pipelines, and one end, far away from the drying chamber, of each heating box is connected with a fan through a pipeline; the top of the drying chamber is connected with a bent pipe air inlet of the cooling box through a plurality of exhaust pipes, the bent pipe air inlet corresponds to a heat exchange cooling pipe in the drying chamber, a blocking net is further arranged in the drying chamber, and the inlet end of the filtering bin is connected with the exhaust pipe at the top end of the cooling box. And then the air exchanges heat with the air through the heat exchange cold pipe in the cooling box, and finally the air is smoothly discharged through treatment of the activated carbon filtering mechanism, so that the discharge requirement is ensured, the air entering the cooling box can be in contact with the heat exchange cold pipe as much as possible, and the heat exchange efficiency and effect are greatly improved. Meanwhile, a blocking net is arranged at the top of the top end in the cooling box, so that particles in air are filtered, and the treatment pressure of the activated carbon filtering mechanism is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas emission, in particular to a waste gas cooling and emission device. Background Art

[0002] In the cleaning industry, there are many devices used for hot air drying. Usually, the gas discharged during hot air drying of workpieces cleaned by ordinary cleaning machines can be directly discharged into the air, but some environmentally friendly solvents need to be treated after the concentration is high before they can meet environmental protection requirements for direct discharge. Conventional cleaning machines can directly discharge exhaust gas, or treat it through a steam processor, but products cleaned with hydrocarbon solvents will volatilize with corrosive odors, which are easy to pollute the environment, and high-temperature emissions cannot meet emission requirements. In the existing exhaust gas cooling device, after the high-temperature gas of the product cleaned by hydrocarbon solvents enters the cooling box after drying, only part of the air exchanges heat with the heat exchange tube, and most of the gas is directly discharged from the top, resulting in low heat exchange efficiency, and the particulate matter in the air is only processed by the activated carbon filter mechanism, which leads to high processing pressure of the activated carbon filter mechanism. Therefore, an improved technology is urgently needed to solve the above problems existing in the prior art. Utility Model Content

[0003] The purpose of the utility model is to provide an exhaust gas cooling and emission device, which first dries the air through a heating box, then exchanges heat with the air through the heat exchange cold pipes in the cooling box, and finally discharges it smoothly through the treatment of an activated carbon filter mechanism, thereby ensuring the emission requirements, and the air entering the cooling box can contact the heat exchange cold pipes as much as possible, greatly improving the heat exchange efficiency and effect. At the same time, a blocking net is provided at the top of the top of the cooling box to filter particles in the air and reduce the treatment pressure of the activated carbon filter mechanism, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas cooling and discharging device, comprising a drying chamber, a cooling box, a chiller and an activated carbon filtering mechanism;

[0005] The drying chamber is connected to a plurality of heating boxes through a plurality of pipes, and the ends of the heating boxes away from the drying chamber are connected to the fans through pipes;

[0006] The top of the drying chamber is connected to the cooling box through a plurality of exhaust pipes, a plurality of heat exchange cold pipes are arranged inside the cooling box through a bracket, the heat exchange cold pipes are spirally arranged in the cooling box, a plurality of elbow air inlets are arranged at the lower part of the cooling box, the elbow air inlets are connected to the exhaust pipes, the elbow air inlets correspond to the heat exchange cold pipes one by one, the outlet ends of the elbow air inlets correspond to the central positions of the corresponding heat exchange cold pipes, the top ends of the elbow air inlets are at the same height as the bottom ends of the heat exchange cold pipes, a plurality of blocking nets are arranged at the upper part of the interior of the cooling box, and a plurality of exhaust pipes are arranged at the top of the cooling box;

[0007] The outlet end of the chiller is connected to the inlet end of the heat exchange cold pipe through a pipeline, and the inlet end of the chiller is connected to the outlet end of the heat exchange cold pipe through a pipeline;

[0008] The activated carbon filtering mechanism includes a filter bin, a filter plate and activated carbon. A plurality of filter plates are arranged inside the filter bin, and the filter plates are provided with activated carbon. The inlet end of the filter bin is connected to the exhaust pipe at the top of the cooling box, and the outlet end of the filter bin is provided with an exhaust port.

[0009] Preferably, the utility model provides an exhaust gas cooling and emission device, wherein the inner wall of the heating box is provided with an electric heating tube.

[0010] Preferably, the utility model provides an exhaust gas cooling and discharging device, wherein a first valve is further provided at the outlet end of the chiller.

[0011] Preferably, the utility model provides an exhaust gas cooling and emission device, wherein the lower surface of the cooling box is conical, and a second valve is provided at the bottom of the cooling box.

[0012] Preferably, the utility model provides an exhaust gas cooling and emission device, wherein a partition is provided at the upper end of the interior of the cooling box, the partition is provided with a through groove, and the blocking net is provided on the upper surface of the partition and located at the through groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The air is first dried by a heating box, then heat is exchanged with the air through the heat exchange cold pipe in the cooling box, and finally discharged smoothly through the activated carbon filter mechanism to ensure emission requirements.

[0015] (2) A number of curved air inlets are provided at the bottom of the cooling box. The top of the curved air inlet corresponds to the heat exchange cold tube, so that the dried air enters the inner side of the spirally arranged heat exchange cold tube, thereby ensuring that the air entering the cooling box can contact the heat exchange cold tube as much as possible, and then be discharged from the top, which greatly improves the heat exchange efficiency and effect, and further ensures the emission requirements.

[0016] (3) A blocking net is set at the top of the cooling box, and air is filtered before entering the activated carbon filter chamber to block particulate matter in the air, thereby reducing the processing pressure of the activated carbon filter mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cooling box structure from the front;

[0019] Figure 3 It is a schematic diagram of the cooling box side structure.

[0020] In the figure: drying chamber 1, heating box 2, fan 3, exhaust duct 4, cooling box 5, heat exchange cold pipe 6, blocking net 7, exhaust pipe 8, chiller 9, filter bin 10, filter plate 11, activated carbon 12, elbow air inlet 13, exhaust port 14, first valve 15, second valve 16, partition 17. DETAILED DESCRIPTION

[0021] The following will combine the embodiments and drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0022] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0023] See also Figure 1-3 , the utility model provides a technical solution: an exhaust gas cooling and discharging device, comprising a drying chamber 1, a cooling box 5, a chiller 9 and an activated carbon filtering mechanism;

[0024] The drying chamber 1 is connected to a plurality of heating boxes 2 through a plurality of pipes. The inner wall of the heating box 2 is provided with an electric heating pipe to achieve heating in the heating box 2, thereby achieving drying of the air. The end of the heating box 2 away from the drying chamber 1 is connected to the fan 3 through a pipe.

[0025] The top of the drying chamber 1 is connected to the cooling box 5 through a plurality of exhaust pipes 4. A plurality of heat exchange cold pipes 6 are arranged inside the cooling box 5 through a bracket. The heat exchange cold pipes 6 are spirally arranged in the cooling box 5. A plurality of elbow air inlets 13 are arranged at the lower part of the cooling box 5. The elbow air inlets 13 are connected to the exhaust pipes 4. The elbow air inlets 13 correspond to the heat exchange cold pipes 6 one by one. The outlet ends of the elbow air inlets 13 correspond to the central positions of the corresponding heat exchange cold pipes 6. The top ends of the elbow air inlets 13 and the bottoms of the heat exchange cold pipes 6 are located at the same height. A plurality of blocking nets 7 are arranged at the upper part of the interior of the cooling box 5, a partition 17 is arranged at the upper end of the interior of the cooling box 5, a through groove is opened on the partition 17, the blocking net 7 is arranged on the upper surface of the partition 17 and is located at the through groove, the blocking net 7 is installed through the partition 17, and at the same time, it is ensured that the air can only pass through and be discharged from the blocking net 7, a plurality of exhaust pipes 8 are arranged at the top of the cooling box 5, the lower surface of the cooling box 5 is conical, and a second valve 16 is arranged at the bottom of the cooling box 5 to discharge condensed water and particulate matter inside the cooling box 5;

[0026] The outlet end of the chiller 9 is connected to the inlet end of the heat exchange cold pipe 6 through a pipeline, and a first valve 15 is also provided at the outlet end of the chiller 9 to realize the flow and closing of the circulating water. The inlet end of the chiller 9 is connected to the outlet end of the heat exchange cold pipe 6 through a pipeline;

[0027] The activated carbon filtering mechanism includes a filter chamber 10, a filter plate 11 and activated carbon 12. A plurality of filter plates 11 are arranged inside the filter chamber 10, and the filter plates 11 are provided with activated carbon. The inlet end of the filter chamber 10 is connected to the exhaust pipe 8 at the top of the cooling box 5, and the outlet end of the filter chamber 10 is provided with an exhaust port 14.

[0028] Installation method and use principle: install several heating boxes 2 in the drying chamber 1 through several pipes, and the heating boxes 2 are connected to the fan 3 through pipes. The fan 3 is installed in the corresponding position of the workshop. Then connect the exhaust pipe 4 to the air inlet end of the curved pipe air inlet 13 of the cooling box 5, and then connect the spiral heat exchange cold pipe 6 to the inlet and outlet ends of the chiller 9 through pipes. The chiller 9 provides a cold water source, and the cold water source circulates in the heat exchange cold pipe 6. Finally, connect the top of the cooling box 5 to the filter bin 10 through the exhaust pipe 8 to complete the installation. When in use, the product washed with hydrocarbon solvent is placed in the drying chamber 1, and then the electric heating tube on the side wall of the heating box 2 is started, and the fan 3 is started at the same time. The fan 3 draws the air in the workshop and dries it through the heating box 2. The dried air passes through the drying chamber 1 and enters the cooling box 5 from the elbow air inlet 13. Then the air passes through the corresponding heat exchange cold pipe 6. After the heat exchange, the water temperature rises and the air temperature drops. Finally, the air enters the filter bin 10 through the exhaust pipe 8 on the top, and is treated by the filter plate 11 and the activated carbon 12, and then is discharged from the exhaust port 14 at the end of the filter bin 10. The utility model has a reasonable structure. The air is first dried by the heating box 2, and then heat is exchanged with the air through the heat exchange cold pipe 6 in the cooling box 5, and finally the air is smoothly discharged after being processed by the activated carbon filter mechanism, thereby ensuring the emission requirements, wherein a plurality of curved pipe air inlets 13 are arranged at the bottom of the cooling box 5, and the tops of the curved pipe air inlets 13 correspond to the heat exchange cold pipe 6, so that the dried air enters the inner side of the spirally arranged heat exchange cold pipe 6, thereby ensuring that the air entering the cooling box 5 can contact the heat exchange cold pipe 6 as much as possible, and then is discharged from the top, which greatly improves the heat exchange efficiency and effect, and further ensures the emission requirements. At the same time, a blocking net 7 is arranged on the top of the top of the cooling box 5, and an air filtration is performed before entering the activated carbon filter bin 10 to block particulate matter in the air, thereby reducing the processing pressure of the activated carbon filter mechanism.

[0029] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0030] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An exhaust gas cooling and emission device, characterized in that: It comprises a drying chamber (1), a cooling box (5), a water chiller (9) and an activated carbon filtering mechanism; The drying chamber (1) is connected to a plurality of heating boxes (2) through a plurality of pipelines, and the ends of the heating boxes (2) away from the drying chamber (1) are connected to the fans (3) through pipelines; The top of the drying chamber (1) is connected to the cooling box (5) through a plurality of exhaust pipes (4); a plurality of heat exchange cold pipes (6) are arranged inside the cooling box (5) through a bracket; the heat exchange cold pipes (6) are spirally arranged in the cooling box (5); a plurality of curved pipe air inlets (13) are arranged at the bottom of the cooling box (5); the curved pipe air inlets (13) are connected to the exhaust pipes (4); the curved pipe air inlets (13) correspond to the heat exchange cold pipes (6) one by one; the outlet ends of the curved pipe air inlets (13) correspond to the center positions of the corresponding heat exchange cold pipes (6); the top ends of the curved pipe air inlets (13) are located at the same height as the bottom ends of the heat exchange cold pipes (6); a plurality of blocking nets (7) are arranged at the upper part of the interior of the cooling box (5); and a plurality of exhaust pipes (8) are arranged at the top of the cooling box (5); The outlet end of the water chiller (9) is connected to the inlet end of the heat exchange cold pipe (6) through a pipeline, and the inlet end of the water chiller (9) is connected to the outlet end of the heat exchange cold pipe (6) through a pipeline; The activated carbon filtering mechanism comprises a filter chamber (10), a filter plate (11) and activated carbon (12); a plurality of filter plates (11) are arranged inside the filter chamber (10); the filter plates (11) are provided with activated carbon; the inlet end of the filter chamber (10) is connected to an exhaust pipe (8) at the top end of a cooling box (5); and the outlet end of the filter chamber (10) is provided with an exhaust port (14).

2. The exhaust gas cooling and emission device according to claim 1, characterized in that: The inner wall of the heating box (2) is provided with an electric heating tube.

3. The exhaust gas cooling and emission device according to claim 1, characterized in that: The outlet end of the chiller (9) is also provided with a first valve (15).

4. The exhaust gas cooling and emission device according to claim 1, characterized in that: The lower surface of the cooling box (5) is conical, and a second valve (16) is provided at the bottom of the cooling box (5).

5. The exhaust gas cooling and emission device according to claim 1, characterized in that: A partition (17) is provided at the upper end of the interior of the cooling box (5), the partition (17) is provided with a through slot, and the blocking net (7) is arranged on the upper surface of the partition (17) and located at the through slot.

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