A primary cooler spraying device

Abstract

The present invention relates to the field of coking pre-cooler cleaning technology, and in particular to a pre-cooler spraying device. It includes a spraying pipe, a filter and an ultrasonic anti-scaling and anti-scaling device; the spraying pipe is horizontally fixed to the inside of the pre-cooler through a flange, and both ends of the spraying pipe extend out of the pre-cooler, and the ultrasonic anti-scaling and anti-scaling device is fixed to the spraying pipe extending out of the pre-cooler; one end of the spraying pipe is connected to the filter, and the filter is connected to the spraying liquid main pipe through a connecting pipe, and a valve is provided on the connecting pipe, and the other end of the spraying pipe is connected to the flange cover. The present invention is convenient and quick to install and disassemble, and the washing liquid is sprayed evenly, which can effectively prevent scaling in the spraying pipe and avoid the particles carried by the washing liquid from clogging the spraying pipe.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning a coking primary cooler, and in particular to a primary cooler spraying device. Background Art

[0002] The coking chemical industry is an important part of the coal chemical industry, and has made outstanding contributions to my country's economic development. However, with the gradual deepening of environmental protection concepts, the absorption of toxic and harmful gases by coking plants has attracted more and more attention from the outside world. The primary cooler is a key equipment in the coking plant. The primary cooler is used to cool the raw coal gas. During use, impurities such as coal powder, tar, and naphthalene in the raw coal gas are deposited on the heat exchange tubes of the primary cooler, causing the resistance of the primary cooler to increase.

[0003] At present, impurities on the heat exchange tubes are usually washed by spraying washing liquid. However, the existing cooler spraying device sprays the washing liquid unevenly, scaling in the spray tube or the washing liquid contains particles that block the spray tube, which can easily cause the pre-cooler heat exchange tubes to not be washed in time, thereby affecting the operation of the gas purification system. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a pre-cooler spraying device. The washing liquid is sprayed evenly, which can effectively prevent scaling in the spraying pipe and avoid the particles carried by the washing liquid from clogging the spraying pipe.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pre-cooler spraying device comprises a spraying pipe, a filter and an ultrasonic anti-scaling and anti-scaling device; the spraying pipe is horizontally fixed to the inside of the pre-cooler through a flange, and the ultrasonic anti-scaling and anti-scaling device is fixed to the outer wall of the spraying pipe; one end of the spraying pipe is connected to the filter, and the filter is connected to the spraying liquid main pipe through a connecting pipe, a valve is provided on the connecting pipe, and the other end of the spraying pipe is connected to the flange cover.

[0007] The bottom of the spray pipe is provided with a plurality of spray holes, and the spacing between the plurality of spray holes gradually decreases from the flange cover end to the filter end, or the area of ​​the plurality of spray holes gradually increases from the flange cover end to the filter end.

[0008] The plurality of spray holes are circular holes, elliptical holes, polygonal holes or irregularly shaped holes.

[0009] The top of the spray pipe flange cover end has an opening.

[0010] It also includes a short pipe which is fixedly connected to the flange cover.

[0011] It also includes a first plate flange, a second plate flange, a third plate flange and a flange; the flange is fixed to the pre-cooler, the third plate flange is fixed to the side wall of the spray pipe, and the flange and the third plate flange are connected by bolts; the first plate flange and the second plate flange are fixed to the end faces at both ends of the spray pipe, one end of the spray pipe is connected to the flange cover through the first plate flange, and the other end of the spray pipe is connected to the filter through the second flange.

[0012] The ultrasonic anti-scaling device comprises an ultrasonic transducer and a waveguide. The waveguide is fixedly connected to a spray pipe extending out of a pre-cooler, and the ultrasonic transducer is fixedly connected to the waveguide.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1) The spray pipe of the present invention is horizontally fixed to the interior of the pre-cooler through a flange, and a plurality of spray holes are provided at the bottom of the middle part of the spray pipe. The spacing between the plurality of spray holes gradually decreases from the flange cover end to the filter end, or the area of ​​the plurality of spray holes gradually increases from the flange cover end to the filter end. Since the washing liquid entering the spray pipe has different resistances along the length direction of the spray pipe, the same size of openings and the equal spacing of openings cause uneven distribution of the washing liquid. The present invention forms uniform distribution of the washing liquid by opening holes of different sizes or adjusting the hole spacing in combination with a horizontally placed spray pipe.

[0015] 2) The present invention is equipped with an ultrasonic anti-scaling device, which utilizes ultrasonic oscillation to remove scale, high-speed micro-vortex effect, and shear force effect, and the equipment removes scale and prevents scale simultaneously.

[0016] 3) The present invention provides a filter at the inlet of the washing liquid, and the filter can filter particles in the washing liquid to reduce the blockage of the spray pipe.

[0017] 4) The flange cover of the present invention is welded with a short pipe on the outside, which is convenient for installation and disassembly of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure and process principle of the present invention.

[0019] In the figure: 1-spray pipe 2-filter 3-valve 4-first plate flange 5-second plate flange 6-third plate flange 7-flange 8-short pipe 9-small hole 10-primary cooler cylinder 11-spray hole 12-flange cover 13-connecting pipe 14-spray liquid main pipe 15-ultrasonic transducer 16-waveguide DETAILED DESCRIPTION

[0020] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0021] Example:

[0022] like Figure 1 As shown, a pre-cooler spraying device includes a spraying pipe 1, a filter 2, an ultrasonic anti-scaling and anti-scaling device, a valve 3, a first plate flange 4, a second plate flange 5, a third plate flange 6, a flange 7, a flange cover 12 and a short pipe 8.

[0023] A plurality of spray holes 11 are provided at the bottom of the spray pipe 1. The spray holes 11 are circular holes, elliptical holes, polygonal holes or irregular holes. The spacing between the plurality of spray holes 11 decreases gradually from left to right, or the area of ​​the plurality of spray holes increases gradually from left to right. A small hole 9 is opened at the top of the left end of the spray pipe 1. The two flanges 7 are fixedly connected to the cylinder of the pre-cooler symmetrically, and the third plate flange 6 is fixedly connected to the right end of the spray pipe 1. The third plate flange 6 is connected to the right end flange 7 by bolts, and then the spray pipe 1 is fixedly connected horizontally to the inside of the cylinder 10 of the pre-cooler.

[0024] The right end of the spray pipe 1 extends out of the primary cooler cylinder 10, the first plate flange 4 is fixedly connected to the left end face of the spray pipe 1, the first plate flange 4 is connected to the flange cover 12 by bolts, and the short pipe 8 is fixed to the flange cover 12. The second plate flange 5 is fixedly connected to the right end face of the spray pipe 1, the second plate flange 5 is connected to the filter 2, the filter 2 is connected to the valve 3, and the valve 3 is connected to the spray liquid main pipe 14 through the connecting pipe 13.

[0025] The ultrasonic anti-scaling device comprises an ultrasonic transducer 15 and a waveguide 16 . The ultrasonic transducer 15 and the waveguide 16 are existing products. The waveguide 16 is fixedly connected to the spray pipe 1 of the pre-cooler cylinder 10 , and the ultrasonic transducer 15 is fixedly connected to the waveguide 16 .

[0026] The spray pipe 1 of the present invention is horizontally fixed in the pre-cooler barrel 10. Since the washing liquid entering the spray pipe 1 has different resistances in different parts along the length direction of the spray pipe 1, the same size and equal spacing of the openings cause uneven distribution of the washing liquid. The present invention gradually reduces the spacing between the multiple spray holes 11 from left to right, or gradually increases the area of ​​the multiple spray holes from left to right, in conjunction with the horizontally placed spray pipe 1, thereby forming a uniform distribution of the washing liquid.

[0027] The invention is provided with an ultrasonic anti-scaling and anti-scaling device, which utilizes ultrasonic vibration to remove scale, high-speed micro-vortex effect and shear force effect, and the equipment removes scale and prevents scale simultaneously.

[0028] The present invention provides a filter 2 at the inlet of the washing liquid, and the filter 2 can filter particles in the washing liquid to reduce the blockage of the spray pipe 1.

[0029] The flange cover 12 of the present invention is externally welded with a short pipe 8, which facilitates installation and disassembly of the device.

[0030] The present invention is quick and easy to install and disassemble, and the washing liquid is sprayed evenly, which can effectively prevent scaling in the spray pipe 1 and prevent the particles in the washing liquid from clogging the spray pipe 1.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A primary cooler spraying device, characterized in that: It includes a spray pipe, a filter and an ultrasonic anti-scaling device; the spray pipe is horizontally fixed to the inside of the pre-cooler through a flange, and the ultrasonic anti-scaling device is fixed to the outer wall of the spray pipe; one end of the spray pipe is connected to the filter, and the filter is connected to the spray liquid main pipe through a connecting pipe, a valve is provided on the connecting pipe, and the other end of the spray pipe is connected to the flange cover; The bottom of the spray pipe is provided with a plurality of spray holes, and the spacing between the plurality of spray holes gradually decreases from the flange cover end to the filter end, or the area of ​​the plurality of spray holes gradually increases from the flange cover end to the filter end.

2. A primary cooler spraying device according to claim 1, characterized in that: The plurality of spray holes are circular holes, elliptical holes or polygonal holes.

3. A primary cooler spraying device according to claim 1, characterized in that: The top of the spray pipe flange cover end has an opening.

4. A primary cooler spraying device according to claim 1, characterized in that: It also includes a short pipe which is fixedly connected to the flange cover.

5. A primary cooler spraying device according to claim 1, characterized in that: It also includes a first plate flange, a second plate flange, a third plate flange and a flange; the flange is fixed to the pre-cooler, the third plate flange is fixed to the side wall of the spray pipe, and the flange and the third plate flange are connected by bolts; the first plate flange and the second plate flange are fixed to the end faces at both ends of the spray pipe, one end of the spray pipe is connected to the flange cover through the first plate flange, and the other end of the spray pipe is connected to the filter through the second flange.

6. A primary cooler spraying device according to claim 1, characterized in that: The ultrasonic anti-scaling device comprises an ultrasonic transducer and a waveguide. The waveguide is fixedly connected to a spray pipe extending out of a pre-cooler, and the ultrasonic transducer is fixedly connected to the waveguide.

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