Oil injection waste gas treatment system

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to an oil injection waste gas treatment system which comprises a spray tower and a dry type filter box, a bent pipe is arranged between the spray tower and the dry type filter box, the spray tower and the dry type filter box are communicated through the bent pipe, one end of the bent pipe is provided with a drainage assembly, and the other end of the bent pipe is provided with a water outlet. The bottom end of the drainage assembly is in threaded connection with a water storage assembly, one end of the dry type filter box fixedly communicates with a UV photolysis air purifier through a pipeline, one end of the UV photolysis air purifier fixedly communicates with an activated carbon filter box through a pipeline, and one end of the activated carbon filter box fixedly communicates with a centrifugal fan through a pipeline. And the output end of the centrifugal fan fixedly communicates with an exhaust funnel. According to the utility model, water flowing down along the side wall of the bent pipe can enter the interior of the drainage assembly and finally flow into the interior of the water storage assembly, so that the situation that the service life of a filter element in the dry type filter box is shortened due to the fact that the water flows into the dry type filter box is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and in particular relates to an oil injection waste gas treatment system. Background Art

[0002] Spray painting is a commonly used process for corrosion protection of mechanical parts. A large amount of oily waste gas will be generated during spraying. These oily waste gases contain a large amount of oil droplets and paint components. Direct discharge will pollute the environment and need to undergo a series of treatments before being discharged into the atmosphere. When treating the waste gas, it is usually necessary to go through spraying, filtering, photolysis and other procedures.

[0003] After the exhaust gas is sprayed through the spray tower, it will contain more water. The water is mixed in the exhaust gas in the form of micro-droplets and steam. The exhaust gas needs to be filtered after spraying. When the water passes through the pipe, part of the water will condense inside the pipe and flow into the filter box through the pipe. After the water flows into the filter box, it will be absorbed by the filter layer inside the filter box, affecting the service life of the filter layer. Utility Model Content

[0004] The utility model aims to provide an injection exhaust gas treatment system, which can prevent water from flowing into the interior of a dry filter box and reduce the service life of the filter element inside the dry filter box, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil injection exhaust gas treatment system, comprising a spray tower and a dry filter box, a bend pipe is arranged between the spray tower and the dry filter box, the spray tower and the dry filter box are connected through the bend pipe, a drainage assembly is arranged at one end of the bend pipe, a water storage assembly is threadedly connected to the bottom end of the drainage assembly, one end of the dry filter box is fixedly connected to a UV photolysis air purifier through a pipeline, one end of the UV photolysis air purifier is fixedly connected to an activated carbon filter box through a pipeline, one end of the activated carbon filter box is fixedly connected to a centrifugal fan through a pipeline, and the output end of the centrifugal fan is fixedly connected to an exhaust pipe.

[0006] Furthermore, the drainage assembly includes an intermediate cylinder, both ends of which are fixedly connected with connecting sleeves, and one end of the two connecting sleeves is respectively connected with one end of the elbow and one end of the dry filter box.

[0007] Furthermore, a conduit is fixedly connected to the bottom of the side wall of the intermediate tube, and a core structure is arranged inside the conduit.

[0008] Furthermore, a limiting ring is fixedly connected to the middle portion of the side wall of the conduit.

[0009] Furthermore, the core structure includes a first support frame fixedly connected to the inside of the catheter and a conical head slidably connected to the top of the catheter, the bottom end of the middle part of the first support frame is fixedly connected to the outer cylinder, the bottom end of the conical head is fixedly connected to a connecting rod, the connecting rod is slidably connected to the inside of the outer cylinder, the bottom end of the connecting rod is fixedly connected to a bottom plate, the side wall of the connecting rod is provided with a spring, and the two ends of the spring are respectively fixedly connected to the top end of the bottom plate and the bottom end of the first support frame.

[0010] Furthermore, the water storage assembly includes a water storage cylinder, the top of which is threadedly connected to the bottom of the conduit, the top of the inner side of the water storage cylinder is fixedly connected to a second support frame, and the middle of the second support frame is fixedly connected to a push rod for pushing the bottom plate upward.

[0011] Furthermore, the first support frame and the second support frame have the same structure, and the second support frame includes an outer ring and an inner ring, the outer ring and the inner ring are concentrically arranged, and the outer ring and the inner ring are fixedly connected with connecting rods equidistantly distributed around the axis of the inner ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects: water flowing down the side wall of the curved pipe will enter the interior of the drainage component and eventually flow into the interior of the water storage component, thereby preventing the water from flowing into the interior of the dry filter box and reducing the service life of the filter element inside the dry filter box; when the water storage cylinder is removed to drain water, the conical head automatically moves downward under the pull of the spring to close the top of the conduit, thereby preventing water from leaking out through the conduit and also preventing exhaust gas from overflowing through the conduit and polluting the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the drainage component of the utility model;

[0015] Figure 3 It is a front cross-sectional view of the drainage assembly of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the water storage component of the utility model.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Spray tower; 2. Dry filter box; 3. UV photolysis air purifier; 4. Activated carbon filter box; 5. Centrifugal fan; 6. Exhaust pipe; 7. Elbow pipe; 8. Drainage assembly; 81. Intermediate cylinder; 82. Connecting sleeve; 83. Cone; 84. Limiting ring; 85. Core structure; 851. First support frame; 852. Conical head; 853. Connecting rod; 854. Bottom plate; 855. Outer cylinder; 856. Spring; 9. Water storage assembly; 91. Water storage cylinder; 92. Top rod; 93. Second support frame; 931. Outer ring; 932. Inner ring; 933. Connecting rod. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0020] like Figure 1 As shown, an oil injection exhaust gas treatment system includes a spray tower 1 and a dry filter box 2, a bend pipe 7 is arranged between the spray tower 1 and the dry filter box 2, the spray tower 1 and the dry filter box 2 are connected through the bend pipe 7, a drainage component 8 is arranged at one end of the bend pipe 7, the bottom end of the drainage component 8 is threadedly connected with a water storage component 9, one end of the dry filter box 2 is fixedly connected to a UV photolysis air purifier 3 through a pipeline, one end of the UV photolysis air purifier 3 is fixedly connected to an activated carbon filter box 4 through a pipeline, one end of the activated carbon filter box 4 is fixedly connected to a centrifugal fan 5 through a pipeline, and the output end of the centrifugal fan 5 is fixedly connected to an exhaust pipe 6.

[0021] According to the above structure, when in use, the oil spray exhaust gas is passed into the interior of the spray tower 1, and the waste oil droplets and paint contained in the exhaust gas are settled after being sprayed by the spray tower 1, and then the exhaust gas passes through the dry filter box 2, UV photolysis air purifier 3 and activated carbon filter box 4 in turn, and the dry filter box 2, UV photolysis air purifier 3 and activated carbon filter box 4 adsorb the polluted gas in the exhaust gas, so that the exhaust gas reaches the emission standard, and the centrifugal fan 5 plays the role of exhaust. The gas after spraying contains a large amount of water. After the water hits the side wall of the elbow 7, it will gather on the side wall of the elbow 7. The water flowing down the side wall of the elbow 7 enters the interior of the drainage component 8 and finally flows to the interior of the water storage component 9, thereby preventing the water from flowing into the interior of the dry filter box 2 and reducing the service life of the filter element inside the dry filter box 2.

[0022] like Figure 2 and 3As shown, the drainage assembly 8 includes an intermediate cylinder 81, both ends of the intermediate cylinder 81 are fixedly connected with connecting sleeves 82, one end of the two connecting sleeves 82 is respectively connected with one end of the elbow 7 and one end of the dry filter box 2, the bottom of the side wall of the intermediate cylinder 81 is fixedly connected with a conduit 83, the interior of the conduit 83 is provided with a core structure 85, the middle part of the side wall of the conduit 83 is fixedly connected with a limiting ring 84, the core structure 85 includes a first support frame 851 fixedly connected to the interior of the conduit 83 and a conical head 852 slidably connected to the top of the conduit 83, the bottom end of the middle part of the first support frame 851 is fixedly connected to the outer cylinder 855, the bottom end of the conical head 852 is fixedly connected to the connecting rod 853, the connecting rod 853 is slidably connected to the interior of the outer cylinder 855, the bottom end of the connecting rod 853 is fixedly connected to the bottom plate 854, the side wall of the connecting rod 853 is sleeved with a spring 856, and the two ends of the spring 856 are respectively fixedly connected to the top of the bottom plate 854 and the bottom end of the first support frame 851.

[0023] According to the above structure, when the condensed water flows down along the inside of the curved pipe 7 during use, the condensed water will first flow into the inside of the intermediate tube 81 and then flow into the inside of the water storage assembly 9 along the conduit 83 .

[0024] like Figure 3 and 4 As shown, the water storage assembly 9 includes a water storage cylinder 91, the top of the water storage cylinder 91 is threadedly connected to the bottom of the conduit 83, the top of the inner side of the water storage cylinder 91 is fixedly connected to a second support frame 93, the middle part of the second support frame 93 is fixedly connected to a push rod 92 for pushing the bottom plate 854 upward, the first support frame 851 and the second support frame 93 have the same structure, the second support frame 93 includes an outer ring 931 and an inner ring 932, the outer ring 931 and the inner ring 932 are concentrically arranged, and the outer ring 931 and the inner ring 932 are fixedly connected with connecting rods 933 equidistantly distributed around the axis of the inner ring 932.

[0025] According to the above structure, when the water storage cylinder 91 is installed at the bottom of the conduit 83, the push rod 92 will push the bottom plate 854 upward. After the transmission of the connecting rod 853, the conical head 852 moves upward, so that the top of the conduit 83 is opened, and water can flow into the inside of the water storage cylinder 91 through the conduit 83. When the water in the water storage cylinder 91 needs to be discharged, the water storage cylinder 91 is unscrewed, and the conical head 852 moves downward under the pull of the spring 856 to prevent water from leaking through the conduit 83 and also to prevent exhaust gas from overflowing through the conduit 83.

[0026] The working principle of the utility model is as follows: the oil spray exhaust gas is introduced into the interior of the spray tower 1, and the waste oil droplets and paint contained in the exhaust gas are settled after being sprayed by the spray tower 1, and then the exhaust gas passes through the dry filter box 2, the UV photolysis air purifier 3 and the activated carbon filter box 4 in sequence, and the dry filter box 2, the UV photolysis air purifier 3 and the activated carbon filter box 4 adsorb the polluted gas in the exhaust gas, so that the exhaust gas reaches the emission standard, and the centrifugal fan 5 plays the role of exhaust. The gas after spraying contains a large amount of water, and the water will gather on the side wall of the elbow 7 after hitting the side wall of the elbow 7. The water flowing down the side wall of the elbow 7 enters the interior of the drainage component 8, and finally flows to the interior of the water storage component 9, so as to prevent these water from flowing to the dry filter box 2, the UV photolysis air purifier 3 and the activated carbon filter box 4. The interior of the filter box 2 reduces the service life of the filter element inside the dry filter box 2. When the condensed water flows down along the inside of the curved pipe 7, the condensed water will first flow to the inside of the intermediate cylinder 81, and then flow along the conduit 83 to the inside of the water storage assembly 9. When the water storage cylinder 91 is installed at the bottom of the conduit 83, the push rod 92 will push the bottom plate 854 upward. After the transmission of the connecting rod 853, the conical head 852 moves upward, so that the top of the conduit 83 is opened, and water can flow to the inside of the water storage cylinder 91 through the conduit 83. When the water inside the water storage cylinder 91 needs to be discharged, the water storage cylinder 91 is unscrewed, and the conical head 852 moves downward under the pull of the spring 856 to prevent water from leaking through the conduit 83, and also to prevent exhaust gas from overflowing through the conduit 83.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A fuel injection waste gas treatment system, comprising a spray tower (1) and a dry filter box (2), characterized in that: A curved pipe (7) is provided between the spray tower (1) and the dry filter box (2); the spray tower (1) and the dry filter box (2) are connected via the curved pipe (7); a drainage component (8) is provided at one end of the curved pipe (7); a water storage component (9) is threadedly connected to the bottom end of the drainage component (8); one end of the dry filter box (2) is fixedly connected to a UV photolysis air purifier (3) via a pipeline; one end of the UV photolysis air purifier (3) is fixedly connected to an activated carbon filter box (4) via a pipeline; one end of the activated carbon filter box (4) is fixedly connected to a centrifugal fan (5) via a pipeline; and an output end of the centrifugal fan (5) is fixedly connected to an exhaust pipe (6).

2. The fuel injection exhaust gas treatment system according to claim 1, characterized in that: The drainage assembly (8) comprises an intermediate cylinder (81), both ends of which are fixedly connected with connecting sleeves (82), and one end of the two connecting sleeves (82) is respectively connected with one end of the elbow (7) and one end of the dry filter box (2).

3. The fuel injection exhaust gas treatment system according to claim 2, characterized in that: The bottom of the side wall of the intermediate tube (81) is fixedly connected with a conduit (83), and a core structure (85) is arranged inside the conduit (83).

4. The fuel injection exhaust gas treatment system according to claim 3, characterized in that: A limiting ring (84) is fixedly connected to the middle portion of the side wall of the conduit (83).

5. The fuel injection exhaust gas treatment system according to claim 4, characterized in that: The core structure (85) comprises a first support frame (851) fixedly connected to the inside of the conduit (83) and a conical head (852) slidably connected to the top of the conduit (83); the bottom end of the middle part of the first support frame (851) is fixedly connected to an outer cylinder (855); the bottom end of the conical head (852) is fixedly connected to a connecting rod (853); the connecting rod (853) is slidably connected to the inside of the outer cylinder (855); the bottom end of the connecting rod (853) is fixedly connected to a bottom plate (854); the side wall of the connecting rod (853) is provided with a spring (856); the two ends of the spring (856) are respectively fixedly connected to the top of the bottom plate (854) and the bottom end of the first support frame (851).

6. The fuel injection exhaust gas treatment system according to claim 5, characterized in that: The water storage assembly (9) comprises a water storage cylinder (91), the top of the water storage cylinder (91) being threadedly connected to the bottom of the conduit (83), the top of the inner side of the water storage cylinder (91) being fixedly connected to a second support frame (93), and the middle part of the second support frame (93) being fixedly connected to a push rod (92) for pushing the bottom plate (854) upwards.

7. The fuel injection exhaust gas treatment system according to claim 6, characterized in that: The first support frame (851) and the second support frame (93) have the same structure. The second support frame (93) includes an outer ring (931) and an inner ring (932). The outer ring (931) and the inner ring (932) are concentrically arranged. The outer ring (931) and the inner ring (932) are fixedly connected by connecting rods (933) equidistantly distributed around the axis of the inner ring (932).

Images