CN220370772U - Washing device - Google Patents

Abstract

The present utility model provides a washing device, comprising: the washing tower is provided with a first gas inlet, a gas outlet, a first washing inlet, a second washing inlet and a washing outlet, the gas outlet is arranged at the top of the washing tower, the first washing inlet and the second washing inlet are arranged above the first gas inlet, the washing outlet is arranged below the first gas inlet, and the first gas is introduced into the washing tower through the first gas inlet; the washing pipeline is provided with a washing liquid outlet which is communicated with the first washing inlet; the circulating pipeline is provided with a circulating inlet and a circulating outlet, the circulating inlet is communicated with the washing outlet, the circulating outlet is communicated with the second washing inlet, and the circulating pipeline is provided with an analyzer for detecting washing liquid in the circulating pipeline. Through the technical scheme that this application provided, can solve the washing device among the prior art washing effect relatively poor, the higher problem of washing liquid quantity.

Description

Washing device

Technical Field

The utility model relates to the technical field of washing devices, in particular to a washing device.

Background

At present, the carbon dioxide tail gas in the low-temperature methanol washing device generally removes methanol contained in the carbon dioxide tail gas through the washing device so as to reduce the methanol content in the tail gas, thereby enabling the tail gas to meet environmental protection indexes for emission. However, in the prior art, the environmental protection requirement is more strict, the washing effect of the washing device is poorer, the emission standard of the carbon dioxide tail gas cannot be ensured, and in order to ensure the emission standard of the carbon dioxide tail gas, part of the washing devices adopt a method for increasing the consumption of the washing liquid to wash, so that the consumption of the washing liquid is caused, and the energy consumption is improved.

Disclosure of Invention

The utility model provides a washing device, which solves the problems of poor washing effect and high consumption of washing liquid in the washing device in the prior art.

The present utility model provides a washing device, comprising: the washing tower is provided with a first gas inlet, a gas outlet, a first washing inlet, a second washing inlet and a washing outlet, the gas outlet is arranged at the top of the washing tower, the first washing inlet and the second washing inlet are arranged above the first gas inlet, the washing outlet is arranged below the first gas inlet, and the first gas is introduced into the washing tower through the first gas inlet; the washing pipeline is provided with a washing liquid outlet which is communicated with the first washing inlet; the circulating pipeline is provided with a circulating inlet and a circulating outlet, the circulating inlet is communicated with the washing outlet, the circulating outlet is communicated with the second washing inlet, and the circulating pipeline is provided with an analyzer for detecting washing liquid in the circulating pipeline.

Further, the washing apparatus further includes: and the output pipeline is communicated with the circulating pipeline, and the connection point of the output pipeline and the circulating pipeline is positioned at the downstream of the analyzer.

Further, a packing region is arranged in the washing tower to absorb impurities in the first gas.

Further, the first wash inlet is disposed above the second wash inlet, the packing region includes a first packing portion disposed between the first wash inlet and the second wash inlet, and a second packing portion disposed below the second wash inlet.

Further, the scrubber has a second gas inlet through which the second gas is introduced into the scrubber, the second gas inlet being arranged below the first gas inlet, the packing zone comprising a third packing section arranged between the first gas inlet and the second gas inlet.

Further, the circulating pipeline is also provided with a circulating pump so as to drive the washing liquid to flow in the circulating pipeline, the washing device further comprises a return pipeline, one end of the return pipeline is communicated with the washing tower, the other end of the return pipeline is communicated with the circulating pipeline, and a connecting point of the return pipeline and the circulating pipeline is positioned at the downstream of the circulating pump.

Further, a first regulating valve is arranged on the washing pipeline to regulate the flow in the washing pipeline; the circulating pipeline is provided with a second regulating valve for regulating the flow in the circulating pipeline; the output pipeline is provided with a third regulating valve to regulate the flow in the output pipeline.

Further, the washing device further comprises a first side branch, a second side branch, a third side branch and a fourth side branch, wherein the first side branch is communicated with the washing pipeline and is provided with a first end and a second end which are oppositely arranged, the first end of the first side branch is arranged at the upstream of the first regulating valve, and the second end of the first side branch is arranged at the downstream of the first regulating valve; the second side branch is communicated with the circulating pipeline, and is provided with a first end and a second end which are oppositely arranged, the first end of the second side branch is arranged at the upstream of the second regulating valve, and the second end of the second side branch is arranged at the downstream of the second regulating valve; the third side branch is communicated with the output pipeline, and is provided with a first end and a second end which are oppositely arranged, the first end of the third side branch is arranged at the upstream of the third regulating valve, and the second end of the third side branch is arranged at the downstream of the third regulating valve; the fourth side branch is communicated with the circulating pipeline, the fourth side branch is provided with a first end and a second end which are oppositely arranged, the first end of the fourth side branch is arranged at the upstream of the analyzer, and the second end of the fourth side branch is arranged at the downstream of the analyzer.

Further, the washing device further comprises a first discharge pipeline, a second discharge pipeline, a third discharge pipeline and a fourth discharge pipeline, the first discharge pipeline is communicated with the washing pipeline, and a connection point of the first discharge pipeline and the washing pipeline is arranged between the first end and the second end of the first side branch; the second discharge pipeline is communicated with the circulating pipeline, and a connection point of the second discharge pipeline and the circulating pipeline is arranged between the first end and the second end of the second side branch; the third discharge pipeline is communicated with the output pipeline, and a connection point of the third discharge pipeline and the output pipeline is arranged between the first end and the second end of the third side branch; the fourth relief line is in communication with the circulation line, and a connection point of the fourth relief line to the circulation line is disposed between the first end and the second end of the fourth side branch.

Further, the inside of the washing tower is provided with a filtering part, and the filtering part is arranged close to the gas outlet.

By applying the technical scheme of the utility model, the first gas enters the washing tower through the first gas inlet, the washing liquid enters the washing tower through the washing liquid outlet and the first washing inlet, the first gas is washed, the washing liquid in the washing tower is circulated to the upper part of the first gas inlet through the circulating pipeline again to wash the first gas, the analyzer can detect the washing liquid in the circulating pipeline, when the detection does not reach the standard, part of the washing liquid in the washing tower is discharged to the outside of the washing tower, and the washing pipeline supplements new washing liquid into the washing tower to wash the first gas. By the arrangement, the washing effect of the washing tower can be improved, the washing liquid can be recycled, the consumption of the washing liquid is reduced, and accordingly energy consumption can be reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 illustrates a schematic structural view of a washing apparatus provided according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a washing tower; 11. a first gas inlet; 12. a gas outlet; 13. a second gas inlet;

20. a washing pipeline; 21. a first regulating valve;

30. a circulation line; 31. an analyzer; 32. a circulation pump; 33. a second regulating valve;

40. an output line; 41. a third regulating valve;

51. a first filler portion; 52. a second filler portion; 53. a third filler portion;

60. a return line;

71. a first side branch; 72. a second side branch; 73. a third side branch; 74. a fourth side branch; 75. a first bleed line; 76. a second bleed line; 77. a third bleed line; 78. a fourth bleed line;

81. a first air intake line; 82. and a second air inlet pipeline.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the present application provides a washing apparatus comprising a washing tower 10, a washing line 20, and a circulation line 30. The scrubber 10 has a first gas inlet 11, a gas outlet 12, a first scrubber inlet, a second scrubber inlet, and a scrubber outlet, the gas outlet 12 being provided at the top of the scrubber 10, the first scrubber inlet and the second scrubber inlet being provided above the first gas inlet 11, the scrubber outlet being provided below the first gas inlet 11, the first gas being introduced into the scrubber 10 through the first gas inlet 11. The wash line 20 has a wash liquid outlet in communication with the first wash inlet. The circulation line 30 has a circulation inlet and a circulation outlet, the circulation inlet is communicated with the washing outlet, the circulation outlet is communicated with the second washing inlet, and an analyzer 31 is arranged on the circulation line 30 to detect the washing liquid in the circulation line 30.

According to the technical scheme, first gas enters the washing tower 10 through the first gas inlet 11, washing liquid enters the washing tower 10 through the washing liquid outlet and the first washing inlet, the first gas is washed, the washing liquid in the washing tower 10 is recycled to the upper side of the first gas inlet 11 through the circulating pipeline 30 to wash the first gas, the analyzer 31 can detect the washing liquid in the circulating pipeline 30, when the detection does not reach the standard, part of the washing liquid in the washing tower 10 is discharged to the outside of the washing tower 10, and the washing pipeline 20 supplements new washing liquid in the washing tower 10 so as to wash the first gas. By this arrangement, the washing effect of the washing tower 10 can be improved, the washing liquid can be recycled, the amount of the washing liquid can be reduced, and the energy loss can be reduced.

In the application, the first gas inlet 11 is communicated with the first gas inlet pipeline 81, the first gas is carbon dioxide tail gas in the low-temperature methanol washing device, the first gas enters the washing tower 10 from the first gas inlet 11 through the first gas inlet pipeline 81, and the analyzer 31 is a tower bottom COD online analyzer 31.

Wherein, in this application, still be provided with first spray line and second spray line in the scrubbing tower 10, first spray line and first washing entry intercommunication, second spray line and second washing entry intercommunication are provided with a plurality of first nozzles on the first spray line, are provided with a plurality of second nozzles on the second spray line, so set up, can guarantee the washing effect of washing liquid to first gas further.

Further, the washing apparatus further includes an output line 40, the output line 40 being in communication with the circulation line 30, the junction of the output line 40 and the circulation line 30 being located downstream of the analyzer 31. So configured, when the methanol content in the washing liquid is too high, i.e., the analyzer 31 detects that the washing liquid in the circulation line 30 does not reach the standard, the washing liquid is discharged to the outside through the output line 40. Wherein, in this application, the output pipeline 40 is communicated with the methanol-water separation tower, and the discharged washing liquid is discharged after reaching the standard through the methanol-water separation tower.

Wherein a packing region is provided in the scrubber 10 to absorb impurities in the first gas. By the arrangement, impurities in the first gas can be further removed, and the first gas can be further cleaned, so that the cleanliness of the first gas can be improved.

Specifically, the first washing inlet is disposed above the second washing inlet, and the packing region includes a first packing portion 51 and a second packing portion 52, the first packing portion 51 being disposed between the first washing inlet and the second washing inlet, and the second packing portion 52 being disposed below the second washing inlet. Because the cleanliness of the washing liquid in the washing pipeline 20 is higher than that of the washing liquid in the circulating pipeline 30, the arrangement can avoid the pollution of the washing liquid in the circulating pipeline 30 to the first filler part 51, thereby reducing the cleaning times of the first filler part 51 and reducing the labor intensity of workers. And, the first packing portion 51 and the second packing portion 52 can both adsorb impurities in the first gas, so that the first gas can reach the emission standard.

Further, the scrubber 10 has a second gas inlet 13 through which second gas is introduced into the inside of the scrubber 10, the second gas inlet 13 being arranged below the first gas inlet, the packing region comprising a third packing 53, the third packing 53 being arranged between the first gas inlet and the second gas inlet 13. Wherein the second gas inlet 13 is in communication with the second gas inlet line 82, and the second gas enters the scrubber through the second gas inlet line 82 and the second gas inlet 13.

Wherein, in this application, the staff can let in the gasifier with the partial carbon dioxide that low temperature methanol washing device discharged, and carbon dioxide can blow the fly ash and get into the gasifier to the methyl alcohol in the carbon dioxide is not got rid of completely, can contain fly ash and methyl alcohol impurity in the carbon dioxide this moment, contains fly ash and the carbon dioxide of methyl alcohol impurity and is the second gas. With this arrangement, the third packing 53 can adsorb impurities in the second gas, and can reduce contamination of the first packing 51 and the second packing 52 by impurities in the second gas.

The circulating pipeline 30 is further provided with a circulating pump 32 to drive the washing liquid to flow in the circulating pipeline 30, the washing device further comprises a return pipeline 60, one end of the return pipeline 60 is communicated with the washing tower 10, the other end of the return pipeline 60 is communicated with the circulating pipeline 30, and a connection point of the return pipeline 60 and the circulating pipeline 30 is located at the downstream of the circulating pump 32. By the arrangement, the return pipeline 60 can protect the circulating pump 32 from cavitation of the pump, and meanwhile, the return pipeline 60 can throttle to ensure the flow of the washing liquid discharged from the circulating outlet.

Specifically, a first regulating valve 21 is provided on the washing line 20 to regulate the flow rate in the washing line 20. A second regulating valve 33 is provided on the circulation line 30 to regulate the flow rate in the circulation line 30. A third regulating valve 41 is provided on the output line 40 to regulate the flow rate in the output line 40. The arrangement is convenient for adjusting the flow in the washing pipeline 20, the circulating pipeline 30 and the output pipeline 40, and ensures the washing effect of the washing liquid on the first gas and the second gas.

Further, the washing device further comprises a first side branch 71, a second side branch 72, a third side branch 73 and a fourth side branch 74.

The first side branch 71 communicates with the wash line 20, the first side branch 71 having oppositely disposed first and second ends, the first end of the first side branch 71 being disposed upstream of the first regulator valve 21, the second end of the first side branch 71 being disposed downstream of the first regulator valve 21. So configured, when the first regulating valve 21 fails, the flow rate in the wash pipe 20 can be regulated by the first bypass 71. Wherein the first side branch 71 is provided with a first side valve.

The second bypass branch 72 communicates with the circulation line 30, the second bypass branch 72 having oppositely disposed first and second ends, the first end of the second bypass branch 72 being disposed upstream of the second regulator valve 33, the second end of the second bypass branch 72 being disposed downstream of the second regulator valve 33. So configured, when the second regulating valve 33 fails, the flow rate in the circulation line 30 can be regulated by the second bypass branch 72. Wherein the second bypass branch 72 is provided with a second bypass valve.

The third side branch 73 communicates with the output line 40, the third side branch 73 having oppositely disposed first and second ends, the first end of the third side branch 73 being disposed upstream of the third regulator valve 41, the second end of the third side branch 73 being disposed downstream of the third regulator valve 41. So configured, when the third regulating valve 41 fails, the flow rate in the output line 40 can be regulated by the third bypass 73. Wherein the third side branch 73 is provided with a third side valve.

A fourth side branch 74 communicates with the circulation line 30, the fourth side branch 74 having oppositely disposed first and second ends, the first end of the fourth side branch 74 being disposed upstream of the analyzer 31 and the second end of the fourth side branch 74 being disposed downstream of the analyzer 31. So configured, the wash liquid passing through the analyzer 31 can be regulated by the fourth side branch 74. Wherein a fourth side valve is provided on the fourth side branch 74.

Specifically, the washing apparatus further comprises a first bleed line 75, a second bleed line 76, a third bleed line 77 and a fourth bleed line 78.

The first bleed line 75 communicates with the wash line 20, the connection point of the first bleed line 75 to the wash line 20 being provided between the first and second ends of the first side branch 71. So set up, when first governing valve 21 breaks down, the washing liquid in the first governing valve 21 can be discharged to the external world through first bleeder line 75, is convenient for maintain first governing valve 21.

A second bleed line 76 communicates with the circulation line 30, and a junction of the second bleed line 76 with the circulation line 30 is disposed between the first and second ends of the second side branch 72. So set up, when second governing valve 33 breaks down, the washing liquid in the second governing valve 33 can be discharged to the external world through second relief line 76, is convenient for maintain second governing valve 33.

The third bleed line 77 communicates with the output line 40, the connection point of the third bleed line 77 to the output line 40 being provided between the first and second ends of the third side branch 73. So set up, when third governing valve 41 breaks down, the washing liquid in the third governing valve 41 can be discharged to the outside through third bleeder line 77, is convenient for maintain third governing valve 41.

The fourth bleed line 78 communicates with the circulation line 30, and a junction of the fourth bleed line 78 with the circulation line 30 is disposed between the first and second ends of the fourth side branch 74. So set up, when fourth governing valve breaks down, the washing liquid in the fourth governing valve can be discharged to the external world through fourth bleeder line 78, is convenient for maintain the fourth governing valve.

Wherein the inside of the scrubber 10 has a filtering part, and the filtering part is disposed near the gas outlet 12. The filter part can further clean the first gas and the second gas, so that the clean part of the first gas and the second gas can be further ensured, and the first gas and the second gas are ensured to reach the emission standard.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A washing apparatus, the washing apparatus comprising:

a washing tower (10), wherein the washing tower (10) is provided with a first gas inlet (11), a gas outlet (12), a first washing inlet, a second washing inlet and a washing outlet, the gas outlet (12) is arranged at the top of the washing tower (10), the first washing inlet and the second washing inlet are arranged above the first gas inlet (11), the washing outlet is arranged below the first gas inlet (11), and the first gas is introduced into the washing tower (10) through the first gas inlet (11);

a wash line (20), the wash line (20) having a wash liquid outlet in communication with the first wash inlet;

the circulating pipeline (30), circulating pipeline (30) have circulation entry and circulation export, circulation entry with wash the export intercommunication, circulation export with second wash entry intercommunication, be provided with on circulating pipeline (30) analysis appearance (31) to detect the washing liquid in circulating pipeline (30).

2. The washing apparatus of claim 1, further comprising:

and an output pipeline (40) communicated with the circulating pipeline (30), wherein a connection point of the output pipeline (40) and the circulating pipeline (30) is positioned at the downstream of the analyzer (31).

3. A washing device according to claim 1, characterized in that a packing zone is provided in the washing column (10) to absorb impurities in the first gas.

4. A washing device according to claim 3, wherein the first washing inlet is arranged above the second washing inlet, the packing zone comprises a first packing portion (51) and a second packing portion (52), the first packing portion (51) being arranged between the first washing inlet and the second washing inlet, the second packing portion (52) being arranged below the second washing inlet.

5. The scrubbing apparatus as claimed in claim 4, wherein the scrubbing tower (10) has a second gas inlet (13) through which second gas is introduced into the scrubbing tower (10), the second gas inlet (13) being arranged below the first gas inlet, the packing region comprising a third packing (53), the third packing (53) being arranged between the first gas inlet and the second gas inlet (13).

6. The washing device according to claim 1, characterized in that a circulation pump (32) is further provided on the circulation line (30) to drive the washing liquid to flow in the circulation line (30), the washing device further comprises a return line (60), one end of the return line (60) is communicated with the washing tower (10), the other end of the return line (60) is communicated with the circulation line (30), and a connection point of the return line (60) and the circulation line (30) is located downstream of the circulation pump (32).

7. A washing apparatus according to claim 2, wherein,

a first regulating valve (21) is arranged on the washing pipeline (20) to regulate the flow in the washing pipeline (20);

a second regulating valve (33) is arranged on the circulating pipeline (30) so as to regulate the flow in the circulating pipeline (30);

the output pipeline (40) is provided with a third regulating valve (41) so as to regulate the flow in the output pipeline (40).

8. The washing device according to claim 7, further comprising a first side branch (71), a second side branch (72), a third side branch (73) and a fourth side branch (74),

the first side branch (71) is communicated with the washing pipeline (20), the first side branch (71) is provided with a first end and a second end which are oppositely arranged, the first end of the first side branch (71) is arranged at the upstream of the first regulating valve (21), and the second end of the first side branch (71) is arranged at the downstream of the first regulating valve (21);

the second side branch (72) is communicated with the circulating pipeline (30), the second side branch (72) is provided with a first end and a second end which are oppositely arranged, the first end of the second side branch (72) is arranged at the upstream of the second regulating valve (33), and the second end of the second side branch (72) is arranged at the downstream of the second regulating valve (33);

the third side branch (73) is communicated with the output pipeline (40), the third side branch (73) is provided with a first end and a second end which are oppositely arranged, the first end of the third side branch (73) is arranged at the upstream of the third regulating valve (41), and the second end of the third side branch (73) is arranged at the downstream of the third regulating valve (41);

the fourth side branch (74) is communicated with the circulation pipeline (30), the fourth side branch (74) is provided with a first end and a second end which are oppositely arranged, the first end of the fourth side branch (74) is arranged at the upstream of the analyzer (31), and the second end of the fourth side branch (74) is arranged at the downstream of the analyzer (31).

9. The washing device according to claim 8, characterized in that it further comprises a first bleed line (75), a second bleed line (76), a third bleed line (77) and a fourth bleed line (78),

the first relief line (75) is in communication with the washing line (20), the connection point of the first relief line (75) to the washing line (20) being arranged between a first end and a second end of the first lateral branch (71);

the second relief line (76) is in communication with the circulation line (30), and a connection point of the second relief line (76) to the circulation line (30) is arranged between a first end and a second end of the second side branch (72);

the third relief pipeline (77) is communicated with the output pipeline (40), and a connection point of the third relief pipeline (77) and the output pipeline (40) is arranged between a first end and a second end of the third side branch (73);

the fourth bleed line (78) is in communication with the circulation line (30), and a connection point of the fourth bleed line (78) to the circulation line (30) is provided between the first end and the second end of the fourth side branch (74).

10. The scrubbing apparatus of claim 1, wherein said scrubbing tower (10) has a filtering portion inside and said filtering portion is disposed proximate said gas outlet (12).