Waste gas purification device of solvent cleaning machine

Abstract

The utility model relates to the field of cleaning equipment. A waste gas purification device of a solvent cleaning machine comprises a waste gas leading-in pipe used for being in butt joint with a waste gas exhaust port of the solvent cleaning machine, the waste gas leading-in pipe is connected with an ultraviolet treatment box through a one-way check valve, and a gas outlet of the ultraviolet treatment box is in butt joint with an exhaust fan through a pipeline arranged in a circuitous mode. At least one ozone catalyst box body is mounted on the pipeline; the ultraviolet treatment box comprises a box body and an ultraviolet lamp positioned in the box body; the opposite sides of the box body are provided with an air inlet used for being in butt joint with a one-way check valve and an air outlet used for being in butt joint with a pipeline. Supporting frames arranged left and right are installed in the box body, the supporting frames arranged left and right are longitudinally and slidably connected with supporting cross beams, and the supporting cross beam located on the left side and the supporting cross beam located on the right side are slidably connected with installation frames at the two ends of the same ultraviolet lamp with the front-back direction as the sliding direction. Through the waste gas purification device, the volatile waste gas of the solvent cleaning machine can be discharged after being treated.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to an exhaust gas purification device. Background Art

[0002] The solvent gas volatilized from a solvent cleaning machine will pollute the air. The traditional treatment method for the solvent gas generated by a solvent cleaning machine is to exhaust the gas by a blower, which needs to be connected to the exhaust system in the workshop or discharged into a bucket with an activated carbon system by a blower.

[0003] Currently, there is a lack of an exhaust gas purification device suitable for solvent cleaning machines. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides an exhaust gas purification device for a solvent cleaning machine to solve at least one of the above technical problems.

[0005] The technical solution of the utility model is: an exhaust gas purification device for a solvent cleaning machine, characterized in that it includes an exhaust gas inlet pipe for docking with the exhaust gas outlet of the solvent cleaning machine, the exhaust gas inlet pipe is connected to an ultraviolet treatment box through a one-way check valve, and the air outlet of the ultraviolet treatment box is docked with an exhaust fan through a circuitously arranged pipeline;

[0006] At least one ozone catalyst box body is installed on the pipeline;

[0007] The ultraviolet treatment box includes a box body and ultraviolet lamps located in the box body, and mounting frames are installed at both ends of the ultraviolet lamps;

[0008] An air inlet for docking with the one-way check valve and an air outlet for docking with the pipeline are opened on opposite sides of the box body;

[0009] Support frames arranged left and right are installed in the box body, and at least two support cross beams arranged from top to bottom are longitudinally slidably connected to the support frames arranged left and right. The support cross beams on the left side and the support cross beams on the right side are slidably connected to the mounting frames at both ends of the same ultraviolet lamp in the front-rear direction, and the mounting frames and the support cross beams are relatively fixed through a locking mechanism.

[0010] Through the exhaust gas purification device of the utility model, the discharged volatile exhaust gas of the solvent cleaning machine is processed. Through the one-way check valve, the escape of residual exhaust gas inside is prevented when the equipment stops working. Through the adjustment of the position of the ultraviolet lamp in the ultraviolet treatment box, different installation requirements are met.

[0011] Through an ultraviolet treatment chamber, the exhaust gas of volatile solvents is irradiated with ultraviolet lamps to crack long-chain organic compounds into short-chain organic compounds (photolysis), and ozone is formed through ultraviolet radiation (splitting oxygen into free radicals). The short-chain organic compounds are oxidized and decomposed into carbon dioxide and water. The ozone in the residual gas is consumed by the ozone catalyst chamber, and other harmless gases are discharged through the exhaust fan.

[0012] Further preferably, the pipeline includes a first elbow, one of the ozone catalyst chambers, a second elbow in a downward-opening U shape, another ozone catalyst chamber, and a third elbow connected in sequence.

[0013] Further preferably, sliding rails are provided on the support cross beam in the front-back direction;

[0014] A slider is slidably connected in the sliding rail, and the slider is connected to the mounting bracket through the locking mechanism.

[0015] Further preferably, the mounting bracket includes an L-shaped bent plate, and one end of the L-shaped bent plate is connected to the slider through the locking mechanism;

[0016] A pipe clamp is detachably connected to the other end of the L-shaped bent plate;

[0017] A sleeve is clamped between the pipe clamp and the ultraviolet lamp.

[0018] Avoid the pipe clamp directly clamping and acting on the ultraviolet lamp.

[0019] Further preferably, the ozone catalyst chamber includes a cylinder body with openings at both the upper and lower ends;

[0020] The ozone catalyst chamber further includes an upper hole plate and a lower hole plate arranged up and down, and the upper hole plate and the lower hole plate are connected by a screw rod;

[0021] The upper hole plate is installed on the upper side of the cylinder body, the lower hole plate is installed on the lower side of the cylinder body, and catalyst packing is placed between the upper hole plate and the lower hole plate.

[0022] Further preferably, an upper flange is welded and fixed to the outside of the upper hole plate;

[0023] A lower flange is welded and fixed to the outside of the lower hole plate;

[0024] The upper flange and the lower flange overlap on the upper and lower sides of the cylinder body;

[0025] A handle is installed on the outside of the cylinder body.

[0026] Further preferably, a pressure sensor is installed at the inlet of the exhaust fan, and a flow sensor is installed at the outlet of the exhaust fan.

[0027] The air pressure during operation is detected by a pressure sensor. The flow rate at the outlet of the fan is detected by a flow sensor. When the flow rate decreases abnormally, it is used to control the ultraviolet lamp to turn off, preventing excessive ozone generation inside the equipment.

[0028] Further preferably, it further includes a frame on which the pipeline is installed, and an ozone sensor is installed on the frame.

[0029] When the ozone sensor detects that the ozone concentration in the environment is too high, it will trigger the equipment alarm, facilitating the control to turn off all ultraviolet lamps and preventing the leaked ozone from harming the on-site personnel.

[0030] Further preferably, the front end of the box body is open, and a cover plate is detachably connected to the front end opening of the box body.

[0031] It is convenient to open the cover plate to adjust the position of the ultraviolet lamp.

[0032] Further preferably, it further includes a sub-channel;

[0033] The sub-channel includes an intake pipeline and an exhaust pipeline. The intake pipeline is switched through a three-way valve to be connected to the exhaust pipeline and the connection of the one-way check valve to the box body.

[0034] It is convenient that when the ultraviolet lamp is turned on, the sub-channel can pass through the ultraviolet chamber for ultraviolet light treatment, or directly discharge through the exhaust pipeline when the ultraviolet lamp is not turned on, meeting different treatment requirements.

[0035] Compared with the prior art, the beneficial effects of the present utility model are:

[0036] The present utility model realizes the direct purification treatment of the gas discharged by the solvent cleaning machine, avoiding the escape of waste gas during the docking process with the exhaust system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of the present utility model;

[0038] Figure 2 It is a schematic structural diagram of the present utility model from another perspective;

[0039] Figure 3 It is a schematic partial structural diagram of the ultraviolet treatment chamber of the present utility model;

[0040] Figure 4 It is a partially enlarged view of the ultraviolet treatment chamber of the present utility model;

[0041] Figure 5 It is a schematic structural diagram of the ozone catalyst box body of the present utility model;

[0042] Figure 6 This is a schematic structural diagram of the present utility model installed on a solvent cleaning machine.

[0043] In the figure, 1 is an exhaust gas inlet pipe, 2 is a one-way check valve, 3 is an ultraviolet treatment box, 4 is an ozone catalyst box body, 5 is an exhaust fan, 6 is an intake pipe, 7 is an exhaust pipe, 8 is a three-way valve, 9 is a solvent cleaning machine, 31 is a support cross beam, 32 is a mounting bracket, 33 is a sleeve, 34 is an ultraviolet lamp, 321 is an L-shaped bent plate, 41 is a cylinder body, and 42 is an upper hole plate. Specific embodiments

[0044] See Figures 1 to 6 , Specific Example 1, An exhaust gas purification device for a solvent cleaning machine, including an exhaust gas inlet pipe 1 for docking with the exhaust gas outlet of the solvent cleaning machine 9. The exhaust gas inlet pipe 1 is connected to an ultraviolet treatment box 3 through a one-way check valve 2. The air outlet of the ultraviolet treatment box 3 is connected to an exhaust fan 5 through a circuitously arranged pipeline; at least one ozone catalyst box body 4 is installed on the pipeline; the ultraviolet treatment box 3 includes a box body and an ultraviolet lamp 34 located inside the box body. The two ends of the ultraviolet lamp 34 are installed with mounting brackets 32; the opposite sides of the box body are provided with an air inlet for docking with the one-way check valve 2 and an air outlet for docking with the pipeline; a support frame arranged left and right is installed inside the box body. The support cross beams 31 arranged left and right and arranged from top to bottom are longitudinally slidably connected to at least two. The support cross beam 31 on the left side and the support cross beam 31 on the right side are slidably connected to the mounting brackets 32 at both ends of the same ultraviolet lamp 34 in the front-rear direction, and the mounting brackets 32 and the support cross beams 31 are relatively fixed through a locking mechanism. Through the exhaust gas purification device of the present utility model, the exhausted gas after the treatment of the volatile exhaust gas of the solvent cleaning machine is realized. Through the one-way check valve 2, the escape of the residual exhaust gas inside is prevented when the equipment stops working. Through the adjustment of the position of the ultraviolet lamp 34 in the ultraviolet treatment box 3, different installation requirements are met. Through the ultraviolet treatment box 3, the exhaust gas of the volatile solvent is irradiated by the ultraviolet lamp, the long-chain organic compounds are cracked into short-chain organic compounds (photolysis), and ozone is formed through ultraviolet radiation. The short-chain organic compounds are oxidized and decomposed into carbon dioxide and water. The ozone in the residual gas is treated by the ozone catalyst box body 4, and other harmless gases are discharged through the exhaust fan 5.

[0045] The pipeline includes a first elbow, an ozone catalyst box body 4, a second elbow in the shape of an inverted U, another ozone catalyst box body 4, and a third elbow connected in sequence.

[0046] The support cross beam 31 is provided with a slide rail arranged front and rear; a slider is slidably connected inside the slide rail, and the slider is connected to the mounting bracket 32 through a locking mechanism.

[0047] The mounting bracket 32 includes an L-shaped bent plate 321. One end of the L-shaped bent plate 321 is connected to the slider through a locking mechanism; the other end of the L-shaped bent plate is detachably connected with a pipe clamp; a sleeve 33 is clamped between the pipe clamp and the ultraviolet lamp 34. This avoids the pipe clamp directly clamping and acting on the ultraviolet lamp 34.

[0048] The ozone catalyst box body includes a cylindrical body 41 with openings at both the upper and lower ends; the ozone catalyst box body also includes an upper hole plate 42 and a lower hole plate which are arranged up and down. The upper hole plate 42 and the lower hole plate are connected by a screw; the upper hole plate 42 is installed on the upper side of the cylindrical body 41, the lower hole plate is installed on the lower side of the cylindrical body, and catalyst fillers are placed between the upper hole plate and the lower hole plate. The catalyst fillers are prior art and are ozone catalysts. The ozone catalyst reacts with ozone to generate a series of active species (such as hydroxyl radicals), and at the same time produces oxidation by-products, so as to achieve the purpose of purifying the environment and improving air quality.

[0049] An upper flange is welded and fixed on the outside of the upper hole plate; a lower flange is welded and fixed on the outside of the lower hole plate; the upper flange and the lower flange overlap on the upper and lower sides of the cylindrical body; a handle is installed on the outside of the cylindrical body.

[0050] A pressure sensor is installed at the inlet of the exhaust fan 5, and a flow sensor is installed at the outlet of the exhaust fan 5. Through the pressure sensor, the wind pressure during operation is detected. Through the flow sensor, the flow rate at the outlet of the fan is detected. When the flow rate decreases abnormally, it is used to control the ultraviolet lamp 34 to turn off to prevent excessive ozone from being generated inside the equipment.

[0051] It also includes a frame. A pipeline is installed on the frame, and an ozone sensor is installed on the frame. When the ozone sensor detects that the ozone concentration in the environment is too high, it will trigger the equipment alarm, which is convenient to control and turn off all the ultraviolet lamps 34 to prevent the leaked ozone from causing harm to the on-site personnel. The frame is installed above the solvent cleaning machine.

[0052] The front end of the box body is open, and a cover plate is detachably connected to the front end opening of the box body. This is convenient for opening the cover plate to adjust the position of the ultraviolet lamp 34.

[0053] It also includes a sub-channel; the sub-channel includes an inlet pipeline 6 and an exhaust pipeline 7. The inlet pipeline 6 is switched and docked through a three-way valve 8 to the connection of the exhaust pipeline 7 and the one-way check valve 2 to the box body. This is convenient for when the ultraviolet lamp 34 is turned on, the sub-channel can pass through the ultraviolet box for ultraviolet light treatment, or when the ultraviolet lamp 34 is not turned on, it can be directly discharged through the exhaust pipeline 7 to meet different treatment requirements. The sub-channel is connected and conducted to the exhaust port of the vacuum pump in the inner cavity of the solvent cleaning machine.

[0054] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An exhaust gas purification device for a solvent cleaning machine, characterized in that: It includes an exhaust gas introduction pipe for connecting to the exhaust gas outlet of the solvent cleaning machine, the exhaust gas introduction pipe is connected to a UV treatment box through a one-way check valve, and the air outlet of the UV treatment box is connected to an exhaust fan through a circuitous pipeline; At least one ozone catalyst housing is installed on the pipeline; The ultraviolet treatment box includes a box body and an ultraviolet lamp located in the box body, and mounting frames are installed at both ends of the ultraviolet lamp; An air inlet for connecting to a one-way check valve and an air outlet for connecting to the pipeline are provided on opposite sides of the box; The box body is installed with left and right support frames, each of which is longitudinally slidably connected to at least two support beams arranged from top to bottom, and the support beam on the left and the support beam on the right are both slidably connected to mounting frames at both ends of the same ultraviolet lamp in the forward and backward directions, and the mounting frames and the support beams are relatively fixed by a locking mechanism.

2. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: The pipeline comprises a first curved pipe, an ozone catalyst housing, a second curved pipe in a U-shape with an opening facing downward, another ozone catalyst housing and a third curved pipe which are connected in sequence.

3. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: The supporting crossbeam is provided with front and rear sliding rails; A sliding block is slidably connected in the slide rail, and the sliding block is connected to the mounting frame through the locking mechanism.

4. The exhaust gas purification device of a solvent cleaning machine according to claim 3, characterized in that: The mounting frame comprises an L-shaped bent plate, one end of which is connected to the slider via a locking mechanism; The other end of the L-shaped bent plate is detachably connected to a pipe hoop; A sleeve is sandwiched between the pipe clamp and the ultraviolet lamp.

5. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: The ozone catalyst housing comprises a cylinder with openings at upper and lower ends; The ozone catalyst housing further comprises an upper orifice plate and a lower orifice plate arranged above and below, and the upper orifice plate and the lower orifice plate are connected by a screw; The upper perforated plate is installed on the upper side of the cylinder, the lower perforated plate is installed on the lower side of the cylinder, and catalyst fillers are placed between the upper perforated plate and the lower perforated plate.

6. The exhaust gas purification device of a solvent cleaning machine according to claim 5, characterized in that: An upper flange is welded and fixed on the outer side of the upper orifice plate; A lower flange is welded and fixed on the outer side of the lower orifice plate; The upper flange and the lower flange are overlapped on the upper and lower sides of the cylinder; A handle is installed on the outer side of the cylinder.

7. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: A pressure sensor is installed at the inlet of the exhaust fan, and a flow sensor is installed at the outlet of the exhaust fan.

8. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: It also includes a frame, on which the pipeline is installed, and on which an ozone sensor is installed.

9. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: The front end of the box body is open, and a cover plate is detachably connected to the front end opening of the box body.

10. The exhaust gas purification device of a solvent cleaning machine according to claim 1, characterized in that: Also includes a sub-channel; The sub-channel includes an air intake pipeline and an exhaust pipeline, and the air intake pipeline is switched to connect with the exhaust pipeline and the connection between the one-way check valve and the box body through a three-way valve.

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