Recycling device

Abstract

The recovery device comprises a recovery box and a heat exchange pipe, a top cover is fixed to the upper end of the recovery box, an air inlet pipe is arranged at one end of the recovery box, an exhaust pipe is arranged at the other end of the recovery box, a filter screen is fixed to the end, close to the air inlet pipe, of the interior of the recovery box, and an exhaust pipe is arranged at the other end of the recovery box. A first cleaning assembly is installed on the side, located on the filter screen, of the recycling box, a heat exchange pipe is installed at the end, close to the exhaust pipe, of the interior of the recycling box, a water inlet is formed in the position, penetrating through the outer side of the recycling box, of one end of the heat exchange pipe, and a water outlet is formed in the position, penetrating through the outer side of the recycling box, of the other end of the heat exchange pipe. And a second cleaning assembly is mounted at the position, above the heat exchange pipe, in the recycling box. According to the recovery device, the two faces of the filter screen can be brushed up and down through the use of the first cleaning assembly, it is avoided that smoke soot in exhausted waste gas is accumulated to block the filter screen and affect use of the filter screen, and the use effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to power plants, in particular to a recovery device. Background Art

[0002] A power plant is a place where heat energy is generated by burning fuel (coal, petroleum and its products, natural gas, etc.) to generate electricity. In the process of power generation, burning fuel will produce a large amount of exhaust gas, which also contains a large amount of heat. Therefore, the heat in the exhaust gas is usually recovered and reused through a recovery device.

[0003] The waste heat recovery device of a power plant disclosed in the existing publication number CN 215638925U comprises a base, and a waste heat recovery structure is installed on the top of the base; the waste heat recovery structure comprises: an air intake pipe, a filter bin, a plurality of filter screen components, a conveying pipe, a recovery bin, a nozzle, a heat exchange coil, a spray component, a demisting layer, a material guide trough and a sewage pipe. The above document solves the problem that a thermal power plant generates a large amount of high-temperature flue gas during power generation in the prior art. If it is directly discharged, it will cause a huge heat energy loss, and the high-temperature flue gas contains a large amount of harmful substances. If it is directly discharged, it is easy to pollute the atmosphere. In addition, the existing waste heat recovery device of the power plant is separated from the flue gas treatment device, which occupies a large area. When in use, the flue gas needs to be continuously transferred. During the transfer process, the heat contained in the flue gas is easily leaked, which will further cause heat energy loss.

[0004] However, when the above device filters the exhaust gas, the soot in the exhaust gas will accumulate and block the filter, which is likely to affect the flow of the exhaust gas. At the same time, during the flow of the exhaust gas, the exhaust gas will also contain soot, which is easy to adhere to the heat exchange coil in the device. Over time, it will affect the heat recovery effect. Therefore, we propose a recovery device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a recovery device to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a recovery device, comprising a recovery box and a heat exchange tube, a top cover is fixed on the upper end of the recovery box, an air inlet pipe is arranged at one end of the recovery box, and an exhaust pipe is arranged at the other end of the recovery box, a filter is fixed at one end of the interior of the recovery box close to the air inlet pipe, and two groups of filter screens are arranged, a first cleaning component is installed on the recovery box at one side of the filter screen, a heat exchange tube is installed at one end of the interior of the recovery box close to the exhaust pipe, one end of the heat exchange tube passes through the outside of the recovery box and is provided with a water inlet, and the other end of the heat exchange tube passes through the outside of the recovery box and is provided with a water outlet, a second cleaning component is installed inside the recovery box above the heat exchange tube, and a descaling component is provided at the end of the second cleaning component at the lower part of the interior of the recovery box.

[0007] Preferably, the first cleaning component includes a servo motor, which is fixed above the top cover, and a rotating screw is fixed to the output end of the servo motor, a connecting block is threadedly connected to the middle of the rotating screw, and movable plates are fixed at both ends of the connecting block, and a first opening corresponding to the filter is opened on the lower surface of the recovery box.

[0008] By adopting the above technical solution, the screw rod can be threadedly connected with the connecting block by rotating the screw rod, so that the connecting block can drive the movable plate to perform lifting movement.

[0009] Preferably, the movable plate is arranged in a "concave" shape, and cleaning brushes are fixed to both ends of the inner part of the "concave" shape on the movable plate, and the inner surface of the cleaning brush is arranged to fit the surface of the filter screen.

[0010] By adopting the above technical solution, it is convenient to brush both sides of the filter screen through the cleaning brush at the inner end of the movable plate, so as to increase the service life of the filter screen.

[0011] Preferably, a first collection frame is provided below the first opening, and both ends of the upper part of the first collection frame are provided in a "convex" shape. First clamping blocks are fixed at both ends of the first opening below the recycling box, and the first collection frame and the first clamping block form a snap-fit ​​sliding connection.

[0012] By adopting the above technical solution, the soot that falls off the filter net after being brushed can be collected by the first collecting frame.

[0013] Preferably, the second cleaning component includes a water collecting plate, which is fixed on the lower surface of the top cover, and one side of the water collecting plate is connected to an external pipe that passes through the surface of the recovery box, and a drainage pipe is evenly connected below the water collecting plate, and water spray heads are evenly installed on the surface of the drainage pipe, and the water spray heads on the surface of the drainage pipe are staggered with the heat exchange tubes.

[0014] By adopting the above technical solution, the water spray head on the surface of the water pipe can wash the surface of the heat exchange tube to prevent the soot from adhering to the heat exchange tube.

[0015] Preferably, a drainage block is provided below the drainage pipe, and the upper end surface of the drainage block is inclined, a water supply pipe is fixed to the upper end surface of one side of the drainage block, and a flushing head parallel to the inclined surface of the drainage block is provided on the surface of the water supply pipe, and the water supply pipe is connected to the water collecting plate through a connecting pipe.

[0016] By adopting the above technical solution, the flushing head on the surface of the water supply pipe can be used so that the water and soot dropped onto the drainage block can slide onto the second collection frame along the inclined surface of the drainage block.

[0017] Preferably, the scale removal assembly includes a second opening, which is opened on one side of the end of the drainage block on the recovery box, and second clamping blocks are fixed at both ends of the second opening below the recovery box, and a second collection frame is slidably connected to the second clamping block, and a dirt-isolating filter is detachably provided inside the second collection frame, and a drain outlet is installed on the side of the second collection frame.

[0018] By adopting the above technical solution, the washed-down soot can be collected by using the second collecting frame, and the drainage port on the side of the second collecting frame can be used to collect the water for discharge.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the recycling device,

[0020] By using the first cleaning component, both sides of the filter can be brushed up and down to avoid the accumulation of soot in the exhaust gas and clogging the filter, which affects the use of the filter and improves the use effect of the device;

[0021] The second cleaning component can be used in conjunction with the descaling component to flush the ash adhered to the heat exchange tube, and the ash and moisture can be discharged into the second collecting frame on the descaling component through the use of an inclined drainage block, and the ash and moisture can be separated by using a dirt-isolating filter and a drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a rear view structural diagram of the utility model;

[0024] Figure 3 This is a rear cross-sectional structural schematic diagram of the utility model;

[0025] Figure 4 This is a schematic diagram of the top cross-sectional structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the second cleaning component of the utility model.

[0027] In the figure: 1. recycling box; 2. top cover; 3. air inlet pipe; 4. exhaust pipe; 5. filter; 6. first cleaning component; 601. servo motor; 602. rotating screw; 603. connecting block; 604. movable plate; 605. cleaning brush; 606. first opening; 607. first collecting frame; 608. first clamping block; 7. heat exchange tube; 8. water inlet; 9. water outlet; 10. second cleaning component; 1001. water collecting plate; 1002. external pipe; 1003. drain pipe; 1004. water spray head; 1005. drain block; 1006. water supply pipe; 1007. flushing head; 1008. connecting pipe; 11. descaling component; 1101. second opening; 1102. second clamping block; 1103. second collecting frame; 1104. dirty filter; 1105. drain. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] See also Figure 1-5The utility model provides a technical solution: a recycling device, including a recycling box 1 and a heat exchange tube 7, a top cover 2 is fixed on the upper end of the recycling box 1, an air intake pipe 3 is arranged at one end of the recycling box 1, and an exhaust pipe 4 is arranged at the other end of the recycling box 1, a filter screen 5 is fixed at one end of the interior of the recycling box 1 close to the air intake pipe 3, and the filter screen 5 is provided with two groups, a first cleaning component 6 is installed on one side of the filter screen 5 on the recycling box 1, and the first cleaning component 6 includes a servo motor 601, the servo motor 601 is fixed above the top cover 2, and a rotating screw rod 602 is fixed at the output end of the servo motor 601, a connecting block 603 is threadedly connected to the middle part of the rotating screw rod 602, and movable plates 604 are fixed at both ends of the connecting block 603, and a first opening 606 corresponding to the filter screen 5 is opened on the lower surface of the recycling box 1, which can be connected to the connecting block 603 by rotating the screw rod 602. The connecting block 603 is threadedly connected so that the connecting block 603 drives the movable plate 604 to move up and down. The movable plate 604 is arranged in a "concave" shape, and cleaning brushes 605 are fixed at both ends of the inner part of the "concave" shape on the movable plate 604. The inner surface of the cleaning brush 605 is arranged in contact with the surface of the filter 5, so that the cleaning brush 605 at the inner end of the movable plate 604 can be used to brush both sides of the filter 5 to improve the service life of the filter 5. A first collecting frame 607 is arranged below the first opening 606. Both ends of the upper part of the first collecting frame 607 are arranged in a "convex" shape. First clamping blocks 608 are fixed at both ends of the first opening 606 below the recovery box 1. The first collecting frame 607 and the first clamping block 608 form a snap-fit ​​sliding connection, and the smoke stains dropped by brushing on the filter 5 can be collected by the first collecting frame 607.

[0030] See also Figure 1-5A heat exchange tube 7 is installed at one end of the interior of the recovery box 1 near the exhaust pipe 4, one end of the heat exchange tube 7 passes through the outside of the recovery box 1 and is provided with a water inlet 8, and the other end of the heat exchange tube 7 passes through the outside of the recovery box 1 and is provided with a water outlet 9, and a second cleaning component 10 is installed above the heat exchange tube 7 inside the recovery box 1, and the second cleaning component 10 includes a water collecting plate 1001, the water collecting plate 1001 is fixed to the lower surface of the top cover 2, one side of the water collecting plate 1001 is connected to an external pipe 1002 that passes through the surface of the recovery box 1, and a drain pipe 1003 is evenly connected below the water collecting plate 1001, and a water spray head 1004 is evenly installed on the surface of the drain pipe 1003, and the water spray head 1004 on the surface of the drain pipe 1003 is staggered with the heat exchange tube 7, which can The water spray head 1004 on the surface of the drain pipe 1003 can wash the surface of the heat exchange tube 7 to prevent the soot from adhering to the heat exchange tube 7. A drain block 1005 is arranged below the drain pipe 1003, and the upper end surface of the drain block 1005 is arranged in an inclined shape. A water supply pipe 1006 is fixed to the upper end surface of one side of the drain block 1005, and a flushing head 1007 parallel to the inclined surface of the drain block 1005 is opened on the surface of the water supply pipe 1006. The water supply pipe 1006 is connected to the water collecting plate 1001 through a connecting pipe 1008. The flushing head 1007 on the surface of the water supply pipe 1006 can be used so that the water and soot falling on the drain block 1005 can slide along the inclined surface of the drain block 1005 into the second collection frame 1103;

[0031] See also Figure 1-5 A scale removal component 11 is provided at the end of the second cleaning component 10 at the lower part of the interior of the recycling box 1, and the scale removal component 11 includes a second opening 1101, and the second opening 1101 is opened on one side of the end of the drainage block 1005 on the recycling box 1, and second clamping blocks 1102 are fixed at both ends of the second opening 1101 at the lower part of the recycling box 1, and a second collection frame 1103 is slidably connected to the second clamping block 1102, and a dirt-isolating filter 1104 is detachably provided inside the second collection frame 1103, and a drain port 1105 is installed on the side of the second collection frame 1103, which can be used to collect the flushed smoke scale, and at the same time cooperate with the use of the drain port 1105 on the side of the second collection frame 1103 to collect the discharge of moisture.

[0032] Working principle: First, when in use, the exhaust gas is discharged into the device through the air inlet pipe 3, and the exhaust gas will be initially filtered by the filter 5 so that the gas can pass through the heat exchange tube 7, which is convenient for heat exchange and recovery of the heat in the exhaust gas;

[0033] During maintenance, the surface of the filter 5 is provided with a first cleaning assembly 6, which can drive the rotating screw 602 to rotate through the servo motor 601, so that the rotating screw 602 and the connecting block 603 can move in a threaded manner, so that the connecting block 603 can drive the movable plates 604 at both ends to move up and down. When the movable plate 604 is lifted or lowered, the surface of the filter 5 is brushed by a cleaning brush 605 made of a steel ball on the inner surface of the movable plate 604, so that the smoke stains adhering to the surface of the filter 5 can be brushed off. The brushed off smoke stains will fall into the first collection frame 607 through the first opening 606 for the collection of the smoke stains. At the same time, the first collection frame 607 and the first clamping block 608 below the recycling box 1 constitute a snap-fit ​​disassembly and installation structure, so as to clean the smoke stains inside the first collection frame 607.

[0034] When cleaning the soot on the surface of the heat exchange tube 7, the external pipe 1002 at the end of the water collecting plate 1001 on the second cleaning component 10 can be connected to the external water pipe, so that the water spray head 1004 on the surface of the drainage pipe 1003 evenly distributed below the water collecting plate 1001 can flush the surface of the heat exchange tube 7, so that the soot can be flushed down. After the soot falls, it will flow into the descaling component 11 through the inclined drainage block 1005. At the same time, the surface of the water supply pipe 1006 at the upper end of the drainage block 1005 is provided with a flushing head 1004 parallel to the inclined surface of the drainage block 1005. 007, it is convenient to flush the fallen cigarette ash and drop it into the second collecting frame 1103 on the descaling component 11. The second collecting frame 1103 is provided with a dirty filter 1104 inside to isolate the cigarette ash. At the same time, the side drain port 1105 of the second collecting frame 1103 is used to discharge water and collect the cigarette ash. At the same time, the second collecting frame 1103 and the second block 1102 under the recycling box 1 form a snap-fit ​​sliding connection to facilitate the disassembly and cleaning of the dirty filter 1104 inside the second collecting frame 1103. This is the operating principle of the recycling device.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A recovery device, comprising a recovery box (1) and a heat exchange tube (7), characterized in that: A top cover (2) is fixed to the upper end of the recovery box (1); an air inlet pipe (3) is provided at one end of the recovery box (1), and an exhaust pipe (4) is provided at the other end of the recovery box (1); a filter screen (5) is fixed to one end of the recovery box (1) near the air inlet pipe (3), and two groups of filter screens (5) are provided; a first cleaning component (6) is installed on the recovery box (1) at one side of the filter screen (5); a heat exchange tube (7) is installed at one end of the recovery box (1) near the exhaust pipe (4); one end of the heat exchange tube (7) passes through the outside of the recovery box (1) and is provided with a water inlet (8); and the other end of the heat exchange tube (7) passes through the outside of the recovery box (1) and is provided with a water outlet (9); a second cleaning component (10) is installed above the heat exchange tube (7) inside the recovery box (1); and a descaling component (11) is provided at the end of the second cleaning component (10) below the inside of the recovery box (1).

2. A recovery device according to claim 1, characterized in that: The first cleaning component (6) comprises a servo motor (601), the servo motor (601) being fixed above the top cover (2), and a rotating screw (602) being fixed to the output end of the servo motor (601), a connecting block (603) being threadedly connected to the middle portion of the rotating screw (602), and movable plates (604) being fixed to both ends of the connecting block (603), and a first opening (606) corresponding to the filter screen (5) being provided on the lower surface of the recovery box (1).

3. A recovery device according to claim 2, characterized in that: The movable plate (604) is arranged in a "concave" shape, and cleaning brushes (605) are fixed to both ends of the inner part of the "concave" shape on the movable plate (604), and the inner surface of the cleaning brush (605) is arranged to fit the surface of the filter screen (5).

4. A recovery device according to claim 2, characterized in that: A first collecting frame (607) is arranged below the first opening (606), and both ends of the upper part of the first collecting frame (607) are arranged in a "convex" shape. First clamping blocks (608) are fixed at both ends of the first opening (606) below the recycling box (1), and the first collecting frame (607) and the first clamping block (608) form a snap-fit ​​sliding connection.

5. A recovery device according to any one of claims 1 to 4, characterized in that: The second cleaning component (10) comprises a water collecting plate (1001), the water collecting plate (1001) being fixed on the lower surface of the top cover (2), one side of the water collecting plate (1001) being connected to an external pipe (1002) penetrating the surface of the recovery box (1), a drainage pipe (1003) being evenly connected below the water collecting plate (1001), and water spray heads (1004) being evenly installed on the surface of the drainage pipe (1003), the water spray heads (1004) on the surface of the drainage pipe (1003) being arranged in an alternating manner with the heat exchange pipe (7).

6. A recovery device according to claim 5, characterized in that: A drainage block (1005) is arranged below the drainage pipe (1003), and the upper end surface of the drainage block (1005) is arranged in an inclined shape. A water supply pipe (1006) is fixed to the upper end surface of one side of the drainage block (1005), and a flushing head (1007) parallel to the inclined surface of the drainage block (1005) is provided on the surface of the water supply pipe (1006). The water supply pipe (1006) is connected to the water collecting plate (1001) via a connecting pipe (1008).

7. A recovery device according to any one of claims 1 to 4, characterized in that: The descaling assembly (11) comprises a second opening (1101), the second opening (1101) being opened on one side of the end of the drainage block (1005) on the recovery box (1), and second clamping blocks (1102) being fixed at both ends of the second opening (1101) below the recovery box (1), a second collection frame (1103) being slidably engaged with the second clamping block (1102), and a dirt-isolating filter (1104) being detachably provided inside the second collection frame (1103), and a drainage outlet (1105) being installed on the side of the second collection frame (1103).

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