CN215411886U - Low-temperature denitration system applied to thermal oxidation environment-friendly device - Google Patents

Abstract

The utility model discloses a low-temperature denitration system applied to a thermal oxidation environment-friendly device, which comprises a first pressure gauge, a second pressure gauge, a first flowmeter, an analysis transmitter, a first pressure transmitter, a second pressure transmitter, a first temperature transmitter, a second temperature transmitter, a seventh temperature transmitter, a second flowmeter, a first regulating valve, a second regulating valve, a quick cut-off valve, a first check valve, a second check valve, a first oxygen content analyzer, a second oxygen content analyzer, a first filter, a second filter, a burner, an incinerator, an evaporator, a smoke exhaust fan, a chimney, an SCR (selective catalytic reduction) denitration device, an economizer, a smoke recirculation fan, an ammonia water tank, a first ammonia water pump, a second ammonia water pump, a first connecting pipe and a second connecting pipe, wherein the system recycles the heat exhausted in tail gas as much as possible while denitration; thereby realize the biggest resource utilization of environmental protection device exhaust tail gas heat, realize the high-efficient environmental protection denitration of tail gas simultaneously.

Description

Low-temperature denitration system applied to thermal oxidation environment-friendly device

Technical Field

The utility model relates to the technical field of thermal oxidation environment-friendly devices, in particular to a low-temperature denitration system applied to a thermal oxidation environment-friendly device.

Background

With the progress of society and the development of economy, various environmental protection devices including RTO, TO, CO and RCO are increasingly applied. Accordingly, the burden on the environment is increased so that the atmospheric pollution is becoming serious. Therefore, various environmental laws and regulations are gradually coming out and show a trend of becoming severer to meet the increasingly severe environmental control requirements. At present, according to national and local standard specifications and policy documents, NOx (nitrogen oxide) is used as an important pollutant emission index to be monitored. It can not only destroy ecological environment, but also form photochemical smog, which is harmful to human health. At present, a denitration device of an environment-friendly device is researched at home and abroad to a certain extent, but the denitration problem is not thoroughly solved as the existing equipment has the conditions of complex processing, limited application working conditions, poor denitration comprehensive efficiency and the like.

In practical application, the temperature of the tail gas discharged by the environmental protection device is low under some working conditions, and typical denitration reaction cannot be carried out, so that it is necessary to design a low-temperature denitration system applied to a thermal oxidation environmental protection device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-temperature denitration system applied to a thermal oxidation environment-friendly device, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: a low-temperature denitration system applied to a thermal oxidation environment-friendly device comprises a first pressure gauge, a second pressure gauge, a third pressure gauge, a fourth pressure gauge, a fifth pressure gauge, a sixth pressure gauge, a seventh pressure gauge, an eighth pressure gauge, a ninth pressure gauge, a first flowmeter, an analysis transmitter, a first pressure transmitter, a second pressure transmitter, a third pressure transmitter, a first temperature transmitter, a second temperature transmitter, a third temperature transmitter, a fourth temperature transmitter, a fifth temperature transmitter, a sixth temperature transmitter, a seventh temperature transmitter, a second flowmeter, a first regulating valve, a second regulating valve, a third regulating valve, a fourth regulating valve, a quick cut-off valve, a first check valve, a second check valve, a third check valve, a first oxygen content analyzer, a second oxygen content analyzer, a first filter, a second filter, a first manual ball valve, A second manual ball valve, a third manual ball valve, a fourth manual ball valve, a fifth manual ball valve, a sixth manual ball valve, a seventh manual ball valve, an eighth manual ball valve, a first manual butterfly valve, a second manual butterfly valve, a burner, an incinerator, an evaporator, a smoke exhaust fan, a chimney, an SCR denitrator, an economizer, a smoke recirculation fan, an ammonia tank, a first ammonia pump, a second ammonia pump, a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe, a sixth connecting pipe, a seventh connecting pipe, an eighth connecting pipe, a ninth connecting pipe, a tenth connecting pipe, an eleventh connecting pipe, a twelfth connecting pipe, a thirteenth connecting pipe, a fourteenth connecting pipe, a fifteenth connecting pipe, a sixteenth connecting pipe, a seventeenth connecting pipe and an eighteenth connecting pipe, wherein the incinerator is provided with a second temperature transmitter, a second pressure transmitter and a third temperature transmitter, the incinerator is fixedly connected with the input end of a fourth connecting pipe, the output end of the fourth connecting pipe is fixedly connected with the evaporator, the evaporator is respectively fixedly connected with the input ends of the first connecting pipe, the sixth connecting pipe and the seventh connecting pipe, the evaporator is fixedly connected with the input end of the fifth connecting pipe, a fourth temperature transmitter and a ninth pressure gauge are arranged on the seventh connecting pipe, the fourth temperature transmitter is close to one side of the evaporator, an eighth connecting pipe is arranged between the economizer and the SCR denitrator, an eighth pressure gauge and a fifth temperature transmitter are arranged on the eighth connecting pipe, the fifth temperature transmitter is positioned on one side close to the SCR denitrator, a sixth temperature transmitter, a seventh temperature transmitter and a seventh pressure gauge are respectively arranged on the SCR denitrator, a ninth connecting pipe is fixedly connected between the SCR denitrator and a chimney, and a sixth pressure gauge and a smoke exhaust fan are arranged on the ninth connecting pipe, the smoke exhaust fan is positioned at one side close to the chimney, the chimney is fixedly connected with the input end of a second connecting pipe, the second connecting pipe is fixedly connected with the output end of a sixth connecting pipe, a second manual ball valve is arranged on the second connecting pipe, the second manual ball valve is positioned between the chimney and the output end of the sixth connecting pipe, an eighth manual ball valve is arranged on the sixth connecting pipe, a ninth connecting pipe is fixedly connected with one end of a tenth connecting pipe, the joint of the tenth connecting pipe and the ninth connecting pipe is positioned between the smoke exhaust fan and the chimney, a second manual butterfly valve is arranged on the tenth connecting pipe, the other end of the tenth connecting pipe is fixedly connected with a twelfth connecting pipe, a first manual butterfly valve, a smoke recirculation fan, a first temperature transmitter, a first pressure transmitter, an analysis transmitter, a first flowmeter, a first regulating valve and a second pressure meter are sequentially arranged on the twelfth connecting pipe, the second pressure gauge is positioned at one side close to the burner, the burner is fixedly connected with the incinerator, the burner is fixedly connected with the input end of a twelfth connecting pipe, the incinerator is fixedly connected with the output end of a third connecting pipe, the output end of the third connecting pipe is fixedly connected with an ammonia water tank, the third connecting pipe is sequentially provided with the third pressure gauge, the quick cut-off valve, a fourth manual ball valve, a second oxygen content analyzer, a third check valve, a second ammonia water pump, a second filter and a seventh manual ball valve, the seventh manual ball valve is positioned at one side close to the ammonia water tank, the ammonia water tank is fixedly connected with the output end of a fourteenth connecting pipe, the input end of the fourteenth connecting pipe is fixed on the third connecting pipe, the input end of the fourteenth connecting pipe is positioned between the quick cut-off valve and the fourth manual ball valve, the fourteenth connecting pipe is sequentially provided with the first check valve, the second regulating valve and the fourth pressure gauge, the fourth pressure gauge is positioned at one side close to the ammonia water tank, the fourteenth connecting pipe is fixedly connected with one end of a sixteenth connecting pipe, the joint of the sixteenth connecting pipe and the fourteenth connecting pipe is positioned between the seventh pressure gauge and the fourth pressure gauge, the other end of the sixteenth connecting pipe is fixed on the third connecting pipe, the joint of the sixteenth connecting pipe and the third connecting pipe is positioned between a fourth manual ball valve and a third check valve, the sixteenth connecting pipe is provided with a second oxygen content analyzer, a seventeenth connecting pipe is arranged between the fourteenth connecting pipe and the thirteenth connecting pipe, the joints of the seventeenth connecting pipe, the fourteenth connecting pipe and the thirteenth connecting pipe are respectively positioned between a second regulating valve and the fourth pressure gauge and between a fifth manual ball valve and a second check valve, the seventeenth connecting pipe is provided with a first oxygen content analyzer, and the ammonia water tank is fixedly connected with the output end of the eleventh connecting pipe, a fifth pressure gauge and a third manual ball valve are arranged on the eleventh connecting pipe, and the fifth pressure gauge is close to one side of the ammonia water tank.

Furthermore, the output ends of the seventh connecting pipe and the eighteenth connecting pipe and the input end of the fifth connecting pipe are respectively and fixedly connected with the economizer, a first manual ball valve, a third pressure transmitter, a second flow meter and a fourth regulating valve are sequentially arranged on the eighteenth connecting pipe, and the fourth regulating valve is positioned on one side close to the economizer.

Furthermore, burn burning furnace and the output fixed connection of fifteenth connecting pipe, the input and the twelfth connecting pipe fixed connection of fifteenth connecting pipe, and the input of fifteenth connecting pipe is located between first flowmeter and the analysis changer, has set gradually first manometer and third governing valve on the fifteenth connecting pipe, and first manometer is located the one side that is close to burning furnace.

Furthermore, the third connecting pipe is fixed with a thirteenth connecting pipe in a parallel connection mode, the joint of the thirteenth connecting pipe and the third connecting pipe is respectively positioned between the ammonia tank and the seventh manual ball valve and between the input ends of the fourth manual ball valve and the fourteenth connecting pipe, a fifth manual ball valve, a second check valve, a first ammonia pump, a first filter and a sixth manual ball valve are sequentially arranged on the thirteenth connecting pipe, and the fifth manual ball valve is close to the output end of the fourteenth connecting pipe.

Further, the first pressure gauge, the second pressure gauge, the third pressure gauge, the fourth pressure gauge, the fifth pressure gauge, the sixth pressure gauge, the seventh pressure gauge, the eighth pressure gauge and the ninth pressure gauge form a pressure gauge assembly, the first flow gauge and the second flow gauge form a flow meter assembly, the first pressure transmitter, the second pressure transmitter and the third pressure transmitter form a pressure transmitter assembly, the first temperature transmitter, the second temperature transmitter, the third temperature transmitter, the fourth temperature transmitter, the fifth temperature transmitter, the sixth temperature transmitter and the seventh temperature transmitter form a temperature transmitter assembly, the first regulating valve, the second regulating valve, the third regulating valve and the fourth regulating valve form a regulating valve assembly, and the first check valve, the second check valve and the third check valve form a check valve assembly, the first oxygen content analyzer and the second oxygen content analyzer constitute an oxygen content analysis assembly, the first filter and the second filter constitute a filter assembly, the first manual ball valve, the second manual ball valve, the third manual ball valve, the fourth manual ball valve, the fifth manual ball valve, the sixth manual ball valve, the seventh manual ball valve and the eighth manual ball valve constitute a manual ball valve assembly, the first manual butterfly valve and the second manual butterfly valve constitute a manual butterfly valve assembly, the first ammonia pump and the second ammonia pump constitute an ammonia pump assembly, the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe, the sixth connecting pipe, the seventh connecting pipe, the eighth connecting pipe, the ninth connecting pipe, the tenth connecting pipe, the eleventh connecting pipe, the twelfth connecting pipe, the thirteenth connecting pipe, the fourteenth connecting pipe, the fifteenth connecting pipe, The sixteenth connecting pipe, the seventeenth connecting pipe and the eighteenth connecting pipe form a connecting pipe assembly.

Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses, through the manometer subassembly that sets up, flowmeter subassembly, pressure transmitter subassembly, temperature transmitter subassembly, regulating valve subassembly, check valve subassembly, oxygen content analysis subassembly, filter subassembly, manual ball valve subassembly, manual butterfly valve subassembly, aqueous ammonia pump subassembly, combustor, burn burning furnace, evaporimeter, smoke exhaust fan, chimney, SCR denitrator, economizer, flue gas recirculation fan and aqueous ammonia jar collocation use, be favorable to while denitrating, reuse discharged heat byproduct steam in the tail gas as far as possible; thereby realize the biggest resource utilization of environmental protection device exhaust tail gas heat, realize the high-efficient environmental protection denitration of tail gas simultaneously.

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 principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an enlarged view of area B of FIG. 1;

FIG. 4 is an enlarged view of area C of FIG. 1;

FIG. 5 is an installation view of a third connection pipe in the present invention;

FIG. 6 is an installation view of a thirteenth connection pipe in the present invention;

in the figure: 1. a first pressure gauge; 2. a second pressure gauge; 3. a third pressure gauge; 4. a fourth pressure gauge; 5. a fifth pressure gauge; 6. a sixth pressure gauge; 7. a seventh pressure gauge; 8. an eighth pressure gauge; 9. a ninth pressure gauge; 10. a first flow meter; 11. an analytical transmitter; 12. a first pressure transmitter; 13. a second pressure transmitter; 14. a third pressure transmitter; 15. a first temperature transmitter; 16. a second temperature transmitter; 17. a third temperature transmitter; 18. a fourth temperature transmitter; 19. a fifth temperature transmitter; 20. a sixth temperature transmitter; 21. a seventh temperature transmitter; 22. a second flow meter; 23. a first regulating valve; 24. a second regulating valve; 25. a third regulating valve; 26. a fourth regulating valve; 27. a quick cut-off valve; 28. a first check valve; 29. a second check valve; 30. a third check valve; 31. a first oxygen content analyzer; 32. a second oxygen content analyzer; 33. a first filter; 34. a second filter; 35. a first manual ball valve; 36. a second manual ball valve; 37. a third manual ball valve; 38. a fourth manual ball valve; 39. a fifth manual ball valve; 40. a sixth manual ball valve; 41. a seventh manual ball valve; 42. an eighth manual ball valve; 43. a first manual butterfly valve; 44. a second manual butterfly valve; 45. a burner; 46. an incinerator; 47. an evaporator; 48. a smoke exhaust fan; 49. a chimney; 50. an SCR denitrator; 51. a coal economizer; 52. a flue gas recirculation fan; 53. an ammonia tank; 54. a first ammonia pump; 55. a second ammonia pump; 56. a first connecting pipe; 57. a second connecting pipe; 58. a third connecting pipe; 59. a fourth connecting pipe; 60. a fifth connecting pipe; 61. a sixth connecting pipe; 62. a seventh connecting pipe; 63. an eighth connecting pipe; 64. a ninth connecting pipe; 65. a tenth connection pipe; 66. an eleventh connecting pipe; 67. a twelfth connecting tube; 68. a thirteenth connecting tube; 69. a fourteenth connection tube; 70. a fifteenth connecting tube; 71. a sixteenth connecting pipe; 72. a seventeenth connecting pipe; 73. an eighteenth connecting tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a low-temperature denitration system applied to a thermal oxidation environment-friendly device comprises a first pressure gauge 1, a second pressure gauge 2, a third pressure gauge 3, a fourth pressure gauge 4, a fifth pressure gauge 5, a sixth pressure gauge 6, a seventh pressure gauge 7, an eighth pressure gauge 8, a ninth pressure gauge 9, a first flowmeter 10, an analysis transmitter 11, a first pressure transmitter 12, a second pressure transmitter 13, a third pressure transmitter 14, a first temperature transmitter 15, a second temperature transmitter 16, a third temperature transmitter 17, a fourth temperature transmitter 18, a fifth temperature transmitter 19, a sixth temperature transmitter 20, a seventh temperature transmitter 21, a second flowmeter 22, a first regulating valve 23, a second regulating valve 24, a third regulating valve 25, a fourth regulating valve 26, a quick cut-off valve 27, a first check valve 28, a second check valve 29, a third check valve 30, a first oxygen content analyzer 31, a second flow meter, a third pressure transmitter 12, a third pressure transmitter 13, a third temperature transmitter 14, a third temperature transmitter 16, a fourth temperature transmitter 18, a fifth temperature transmitter 19, a third temperature transmitter, a fourth temperature transmitter, a third temperature transmitter, a fourth flow meter, a second flow meter, a third flow meter, a fourth flow meter, a third flow meter, a fourth flow meter, a third flow meter, a fourth flow meter, a third flow meter, a fourth flow meter, a third flow meter, a quick cut-off valve, a third flow meter, a quick cut-off valve, a, A second oxygen content analyzer 32, a first filter 33, a second filter 34, a first manual ball valve 35, a second manual ball valve 36, a third manual ball valve 37, a fourth manual ball valve 38, a fifth manual ball valve 39, a sixth manual ball valve 40, a seventh manual ball valve 41, an eighth manual ball valve 42, a first manual butterfly valve 43, a second manual butterfly valve 44, a burner 45, an incinerator 46, an evaporator 47, a smoke exhaust fan 48, a chimney 49, an SCR denitration device 50, an economizer 51, a smoke recirculation fan 52, an ammonia tank 53, a first ammonia pump 54, a second ammonia pump 55, a first connection pipe 56, a second connection pipe 57, a third connection pipe 58, a fourth connection pipe 59, a fifth connection pipe 60, a sixth connection pipe 61, a seventh connection pipe 62, an eighth connection pipe 63, a ninth connection pipe 64, a tenth connection pipe 65, an eleventh connection pipe 66, a twelfth connection pipe 67, a thirteenth connection pipe 68, a tenth connection pipe 65, a tenth connection pipe 66, A fourteenth connecting pipe 69, a fifteenth connecting pipe 70, a sixteenth connecting pipe 71, a seventeenth connecting pipe 72 and an eighteenth connecting pipe 73, wherein the second temperature transmitter 16, the second pressure transmitter 13 and the third temperature transmitter 17 are respectively arranged on the incinerator 46, the incinerator 46 is fixedly connected with the input end of the fourth connecting pipe 59, the output end of the fourth connecting pipe 59 is fixedly connected with the evaporator 47, the evaporator 47 is fixedly connected with the input ends of the first connecting pipe 56, the sixth connecting pipe 61 and the seventh connecting pipe 62, the evaporator 47 is fixedly connected with the input end of the fifth connecting pipe 60, the seventh connecting pipe 62 is provided with the fourth temperature transmitter 18 and the ninth pressure gauge 9, the fourth temperature transmitter 18 is close to one side of the evaporator 47, the output ends of the seventh connecting pipe 62 and the eighteenth connecting pipe 73 and the input end of the fifth connecting pipe 60 are respectively fixedly connected with the economizer 51, the eighteenth connecting pipe 73 is sequentially provided with a first manual ball valve 35, a third pressure transmitter 14, a second flow meter 22 and a fourth regulating valve 26, the fourth regulating valve 26 is positioned at one side close to the economizer 51, an eighth connecting pipe 63 is installed between the economizer 51 and the SCR denitration device 50, an eighth pressure gauge 8 and a fifth temperature transmitter 19 are arranged on the eighth connecting pipe 63, the fifth temperature transmitter 19 is positioned at one side close to the SCR denitration device 50, the SCR denitration device 50 is respectively provided with a sixth temperature transmitter 20, a seventh temperature transmitter 21 and a seventh pressure gauge 7, a ninth connecting pipe 64 is fixedly connected between the SCR denitration device 50 and the chimney 49, the ninth connecting pipe 64 is provided with a sixth pressure gauge 6 and a smoke exhaust fan 48, the smoke exhaust fan 48 is positioned at one side close to the chimney 49, the chimney 49 is fixedly connected with the input end of the second connecting pipe 57, and the output end of the second connecting pipe 57 is fixedly connected with the output end of the sixth connecting pipe 61, the second connecting pipe 57 is provided with a second manual ball valve 36, the second manual ball valve 36 is positioned between the output ends of the chimney 49 and the sixth connecting pipe 61, the sixth connecting pipe 61 is provided with an eighth manual ball valve 42, the ninth connecting pipe 64 is fixedly connected with one end of a tenth connecting pipe 65, the connection position of the tenth connecting pipe 65 and the ninth connecting pipe 64 is positioned between the smoke exhaust fan 48 and the chimney 49, the tenth connecting pipe 65 is provided with a second manual butterfly valve 44, the other end of the tenth connecting pipe 65 is fixedly connected with a twelfth connecting pipe 67, the twelfth connecting pipe 67 is sequentially provided with a first manual butterfly valve 43, a smoke recirculation fan 52, a first temperature transmitter 15, a first pressure transmitter 12, an analysis transmitter 11, a first flowmeter 10, a first regulating valve 23 and a second pressure gauge 2, the second pressure gauge 2 is positioned at one side close to the combustor 45, the combustor 45 is fixedly connected with the incinerator 46, meanwhile, the burner 45 is fixedly connected with the input end of a twelfth connecting pipe 67, the incinerator 46 is fixedly connected with the output end of a fifteenth connecting pipe 70, the input end of the fifteenth connecting pipe 70 is fixedly connected with the twelfth connecting pipe 67, the input end of the fifteenth connecting pipe 70 is positioned between the first flowmeter 10 and the analysis transmitter 11, the fifteenth connecting pipe 70 is sequentially provided with a first pressure gauge 1 and a third regulating valve 25, the first pressure gauge 1 is positioned at one side close to the incinerator 46, the incinerator 46 is fixedly connected with the output end of a third connecting pipe 58, the output end of the third connecting pipe 58 is fixedly connected with an ammonia water tank 53, the third connecting pipe 58 is sequentially provided with a third pressure gauge 3, a quick cut-off valve 27, a fourth manual ball valve 38, a second oxygen content analyzer 32, a third check valve 30, a second ammonia water pump 55, a second filter 34 and a seventh manual ball valve 41, the seventh manual ball valve 41 is located at one side close to the ammonia tank 53, the ammonia tank 53 is fixedly connected with an output end of a fourteenth connection pipe 69, an input end of the fourteenth connection pipe 69 is fixed on the third connection pipe 58, an input end of the fourteenth connection pipe 69 is located between the quick cut-off valve 27 and the fourth manual ball valve 38, a first check valve 28, a second regulating valve 24 and a fourth pressure gauge 4 are sequentially arranged on the fourteenth connection pipe 69, the fourth pressure gauge 4 is located at one side close to the ammonia tank 53, the fourteenth connection pipe 69 is fixedly connected with one end of a sixteenth connection pipe 71, a connection position of the sixteenth connection pipe 71 and the fourteenth connection pipe 69 is located between the seventh pressure gauge 7 and the fourth pressure gauge 4, the other end of the sixteenth connection pipe 71 is fixed on the third connection pipe 58, and a connection position of the sixteenth connection pipe 71 and the third connection pipe 58 is located between the fourth manual ball valve 38 and the third check valve 30, the sixteenth connecting pipe 71 is provided with a second oxygen content analyzer 32, the third connecting pipe 58 is fixed with a thirteenth connecting pipe 68 in a parallel connection mode, the joints of the thirteenth connecting pipe 68 and the third connecting pipe 58 are respectively positioned between the ammonia water tank 53 and the seventh manual ball valve 41 and between the input ends of the fourth manual ball valve 38 and the fourteenth connecting pipe 69, the thirteenth connecting pipe 68 is sequentially provided with a fifth manual ball valve 39, a second check valve 29, a first ammonia water pump 54, a first filter 33 and a sixth manual ball valve 40, the fifth manual ball valve 39 is close to the output end of the fourteenth connecting pipe 69, a seventeenth connecting pipe 72 is arranged between the fourteenth connecting pipe 69 and the thirteenth connecting pipe 68, the joints of the seventeenth connecting pipe 72 and the fourteenth connecting pipe 69 and the thirteenth connecting pipe 68 are respectively positioned between the second regulating valve 24 and the fourth pressure gauge 4 and between the fifth manual ball valve 39 and the second check valve 29, a first oxygen content analyzer 31 is arranged on the seventeenth connecting pipe 72, the ammonia water tank 53 is fixedly connected with the output end of the eleventh connecting pipe 66, a fifth pressure gauge 5 and a third manual ball valve 37 are arranged on the eleventh connecting pipe 66, the fifth pressure gauge 5 is close to one side of the ammonia water tank 53, the first pressure gauge 1, the second pressure gauge 2, the third pressure gauge 3, the fourth pressure gauge 4, the fifth pressure gauge 5, the sixth pressure gauge 6, the seventh pressure gauge 7, the eighth pressure gauge 8 and the ninth pressure gauge 9 form a pressure gauge assembly, the first flowmeter 10 and the second flowmeter 22 form a flowmeter assembly, the first pressure transmitter 12, the second pressure transmitter 13 and the third pressure transmitter 14 form a pressure transmitter assembly, the first temperature transmitter 15, the second temperature transmitter 16, the third temperature transmitter 17, the fourth temperature transmitter 18, the fifth temperature transmitter 19, The sixth temperature transmitter 20 and the seventh temperature transmitter 21 constitute a temperature transmitter assembly, the first regulating valve 23, the second regulating valve 24, the third regulating valve 25 and the fourth regulating valve 26 constitute a regulating valve assembly, the first check valve 28, the second check valve 29 and the third check valve 30 constitute a check valve assembly, the first oxygen content analyzer 31 and the second oxygen content analyzer 32 constitute an oxygen content analyzing assembly, the first filter 33 and the second filter 34 constitute a filter assembly, the first manual ball valve 35, the second manual ball valve 36, the third manual ball valve 37, the fourth manual ball valve 38, the fifth manual ball valve 39, the sixth manual ball valve 40, the seventh manual ball valve 41 and the eighth manual ball valve 42 constitute a manual ball valve assembly, the first manual butterfly valve 43 and the second manual butterfly valve 44 constitute a manual butterfly valve assembly, the first ammonia pump 54 and the second ammonia pump 55 constitute an ammonia pump assembly, the first connecting pipe 56, the second connecting pipe 57, the third connecting pipe 58, the fourth connecting pipe 59, the fifth connecting pipe 60, the sixth connecting pipe 61, the seventh connecting pipe 62, the eighth connecting pipe 63, the ninth connecting pipe 64, the tenth connecting pipe 65, the eleventh connecting pipe 66, the twelfth connecting pipe 67, the thirteenth connecting pipe 68, the fourteenth connecting pipe 69, the fifteenth connecting pipe 70, the sixteenth connecting pipe 71, the seventeenth connecting pipe 72 and the eighteenth connecting pipe 73 form a connecting pipe assembly, which is beneficial to the normal operation of the system; when the system is used, after high temperature firstly passes through an SNCR ammonia spraying device, ammonia water is sprayed into an incinerator 46, the ammonia water reacts with NOx at the temperature of 900 ℃ to generate nitrogen and water, about 50% of NOx in flue gas can be removed in the process, the high-temperature flue gas after SNCR denitration passes through an evaporator 47 to generate steam, the steam is cooled to 200-400 ℃, heat generated in the process of burning waste gas can be recovered in a large amount, a large amount of medium-pressure steam is generated for use, the flue gas after evaporation enters an economizer 51 to be cooled to 0-200 ℃, then the flue gas can enter an SCR denitration device 50 to remove most of NOx, and finally the flue gas is introduced into a chimney 49 through a smoke exhaust fan 48 to reach the standard and be discharged, in the process, more heat can be recovered for use compared with the prior SCR denitration process with 200-400 ℃, deoxygenated water at the temperature of 104 ℃ firstly enters the economizer 51, is heated to 0-220 ℃ after exchanging heat with the flue gas, and then enters the evaporator 47 to generate 4.2MPaG saturated steam, and finally, saturated steam enters a superheater to exchange heat with high-temperature flue gas, then is superheated to 320 ℃ and enters a steam pipe network, salt-containing sewage generated by an evaporator 47 enters a flash tank to recover low-pressure vacuum gas, the salt-containing sewage is cooled by circulating water and then is discharged into a sewage pipe network, and before the flue gas finally reaches the standard, a flue gas is led out and is led into a combustor 45 through a flue gas recirculation fan 52 to be combusted, so that the thermal NOx generated by the system can be further reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a low temperature deNOx systems for thermal oxidation environment-friendly device, including first manometer (1), second manometer (2), third manometer (3), fourth manometer (4), fifth manometer (5), sixth manometer (6), seventh manometer (7), eighth manometer (8), ninth manometer (9), first flowmeter (10), analysis transmitter (11), first pressure transmitter (12), second pressure transmitter (13), third pressure transmitter (14), first temperature transmitter (15), second temperature transmitter (16), third temperature transmitter (17), fourth temperature transmitter (18), fifth temperature transmitter (19), sixth temperature transmitter (20), seventh temperature transmitter (21), second flowmeter (22), first governing valve (23), second governing valve (24), A third regulating valve (25), a fourth regulating valve (26), a quick cut-off valve (27), a first check valve (28), a second check valve (29), a third check valve (30), a first oxygen content analyzer (31), a second oxygen content analyzer (32), a first filter (33), a second filter (34), a first manual ball valve (35), a second manual ball valve (36), a third manual ball valve (37), a fourth manual ball valve (38), a fifth manual ball valve (39), a sixth manual ball valve (40), a seventh manual ball valve (41), an eighth manual ball valve (42), a first manual butterfly valve (43), a second manual butterfly valve (44), a burner (45), an incinerator (46), an evaporator (47), a smoke exhaust fan (48), a chimney (49), an SCR (50), an economizer (51), a smoke recirculation fan (52), Ammonia tank (53), first ammonia pump (54), second ammonia pump (55), first connecting pipe (56), second connecting pipe (57), third connecting pipe (58), fourth connecting pipe (59), fifth connecting pipe (60), sixth connecting pipe (61), seventh connecting pipe (62), eighth connecting pipe (63), ninth connecting pipe (64), tenth connecting pipe (65), eleventh connecting pipe (66), twelfth connecting pipe (67), thirteenth connecting pipe (68), fourteenth connecting pipe (69), fifteenth connecting pipe (70), sixteenth connecting pipe (71), seventeenth connecting pipe (72) and eighteenth connecting pipe (73), its characterized in that: a second temperature transmitter (16), a second pressure transmitter (13) and a third temperature transmitter (17) are respectively arranged on the incinerator (46), the incinerator (46) is fixedly connected with the input end of a fourth connecting pipe (59), the output end of the fourth connecting pipe (59) is fixedly connected with an evaporator (47), the evaporator (47) is respectively fixedly connected with the input ends of a first connecting pipe (56), a sixth connecting pipe (61) and a seventh connecting pipe (62), the evaporator (47) is fixedly connected with the input end of a fifth connecting pipe (60), a fourth temperature transmitter (18) and a ninth pressure gauge (9) are arranged on the seventh connecting pipe (62), the fourth temperature transmitter (18) is close to one side of the evaporator (47), an eighth connecting pipe (63) is arranged between the economizer (51) and the SCR denitration device (50), an eighth pressure gauge (8) and a fifth temperature transmitter (19) are arranged on the eighth connecting pipe (63), and the fifth temperature transmitter (19) is positioned at one side close to the SCR denitrator (50), the SCR denitrator (50) is respectively provided with a sixth temperature transmitter (20), a seventh temperature transmitter (21) and a seventh pressure gauge (7), a ninth connecting pipe (64) is fixedly connected between the SCR denitrator (50) and the chimney (49), the ninth connecting pipe (64) is provided with a sixth pressure gauge (6) and a smoke exhaust fan (48), the smoke exhaust fan (48) is positioned at one side close to the chimney (49), the chimney (49) is fixedly connected with the input end of the second connecting pipe (57), the second connecting pipe (57) is fixedly connected with the output end of the sixth connecting pipe (61), the second connecting pipe (57) is provided with a second manual ball valve (36), and the second manual ball valve (36) is positioned between the output ends of the chimney (49) and the sixth connecting pipe (61), an eighth manual ball valve (42) is arranged on the sixth connecting pipe (61), the ninth connecting pipe (64) is fixedly connected with one end of a tenth connecting pipe (65), the joint of the tenth connecting pipe (65) and the ninth connecting pipe (64) is positioned between a smoke exhaust fan (48) and a chimney (49), a second manual butterfly valve (44) is arranged on the tenth connecting pipe (65), the other end of the tenth connecting pipe (65) is fixedly connected with a twelfth connecting pipe (67), a first manual butterfly valve (43), a smoke recirculation fan (52), a first temperature transmitter (15), a first pressure transmitter (12), an analysis transmitter (11), a first flowmeter (10), a first regulating valve (23) and a second pressure gauge (2) are sequentially arranged on the twelfth connecting pipe (67), the second pressure gauge (2) is positioned on one side close to the combustor (45), and the combustor (45) is fixedly connected with the incinerator (46), meanwhile, the burner (45) is fixedly connected with the input end of a twelfth connecting pipe (67), the incinerator (46) is fixedly connected with the output end of a third connecting pipe (58), the output end of the third connecting pipe (58) is fixedly connected with the ammonia tank (53), a third pressure gauge (3), a quick cut-off valve (27), a fourth manual ball valve (38), a second oxygen content analyzer (32), a third check valve (30), a second ammonia pump (55), a second filter (34) and a seventh manual ball valve (41) are sequentially arranged on the third connecting pipe (58), the seventh manual ball valve (41) is positioned on one side close to the ammonia tank (53), the ammonia tank (53) is fixedly connected with the output end of a fourteenth connecting pipe (69), the input end of the fourteenth connecting pipe (69) is fixed on the third connecting pipe (58), and the input end of the fourteenth connecting pipe (69) is positioned between the quick cut-off valve (27) and the fourth manual ball valve (38), a first check valve (28), a second regulating valve (24) and a fourth pressure gauge (4) are sequentially arranged on the fourteenth connecting pipe (69), the fourth pressure gauge (4) is positioned on one side close to the ammonia water tank (53), the fourteenth connecting pipe (69) is fixedly connected with one end of a sixteenth connecting pipe (71), the joint of the sixteenth connecting pipe (71) and the fourteenth connecting pipe (69) is positioned between a seventh pressure gauge (7) and the fourth pressure gauge (4), the other end of the sixteenth connecting pipe (71) is fixed on the third connecting pipe (58), the joint of the sixteenth connecting pipe (71) and the third connecting pipe (58) is positioned between a fourth manual ball valve (38) and a third check valve (30), a second oxygen content analyzer (32) is arranged on the sixteenth connecting pipe (71), a seventeenth connecting pipe (72) is arranged between the fourteenth connecting pipe (69) and a thirteenth connecting pipe (68), and the connection parts of the seventeenth connecting pipe (72), the fourteenth connecting pipe (69) and the thirteenth connecting pipe (68) are respectively positioned between the second regulating valve (24) and the fourth pressure gauge (4) and between the fifth manual ball valve (39) and the second check valve (29), the seventeenth connecting pipe (72) is provided with a first oxygen content analyzer (31), the ammonia water tank (53) is fixedly connected with the output end of the eleventh connecting pipe (66), the eleventh connecting pipe (66) is provided with a fifth pressure gauge (5) and a third manual ball valve (37), and the fifth pressure gauge (5) is close to one side of the ammonia water tank (53).

2. The low-temperature denitration system applied to the thermal oxidation environment-friendly device according to claim 1, characterized in that: the output ends of the seventh connecting pipe (62) and the eighteenth connecting pipe (73) and the input end of the fifth connecting pipe (60) are respectively fixedly connected with the economizer (51), the eighteenth connecting pipe (73) is sequentially provided with a first manual ball valve (35), a third pressure transmitter (14), a second flowmeter (22) and a fourth regulating valve (26), and the fourth regulating valve (26) is positioned on one side close to the economizer (51).

3. The low-temperature denitration system applied to the thermal oxidation environment-friendly device according to claim 1, characterized in that: the incinerator (46) is fixedly connected with the output end of a fifteenth connecting pipe (70), the input end of the fifteenth connecting pipe (70) is fixedly connected with a twelfth connecting pipe (67), the input end of the fifteenth connecting pipe (70) is located between a first flowmeter (10) and an analysis transmitter (11), a first pressure gauge (1) and a third regulating valve (25) are sequentially arranged on the fifteenth connecting pipe (70), and the first pressure gauge (1) is located on one side close to the incinerator (46).

4. The low-temperature denitration system applied to the thermal oxidation environment-friendly device according to claim 1, characterized in that: the third connecting pipe (58) is fixed with a thirteenth connecting pipe (68) in a parallel connection mode, the connecting position of the thirteenth connecting pipe (68) and the third connecting pipe (58) is respectively located between the ammonia water tank (53) and the seventh manual ball valve (41) and between the input ends of the fourth manual ball valve (38) and the fourteenth connecting pipe (69), a fifth manual ball valve (39), a second check valve (29), a first ammonia water pump (54), a first filter (33) and a sixth manual ball valve (40) are sequentially arranged on the thirteenth connecting pipe (68), and the fifth manual ball valve (39) is close to the output end of the fourteenth connecting pipe (69).

5. The low-temperature denitration system applied to the thermal oxidation environment-friendly device according to claim 1, characterized in that: first manometer (1), second manometer (2), third manometer (3), fourth manometer (4), fifth manometer (5), sixth manometer (6), seventh manometer (7), eighth manometer (8) and ninth manometer (9) constitute and are the manometer subassembly, first flowmeter (10) and second flowmeter (22) constitute and are the flowmeter subassembly, first pressure transmitter (12), second pressure transmitter (13) and third pressure transmitter (14) constitute and are the pressure transmitter subassembly, first temperature transmitter (15), second temperature transmitter (16), third temperature transmitter (17), fourth temperature transmitter (18), fifth temperature transmitter (19), sixth temperature transmitter (20) and seventh temperature transmitter (21) constitute and are the temperature transmitter subassembly, first governing valve (23), A regulating valve component is formed by a second regulating valve (24), a third regulating valve (25) and a fourth regulating valve (26), a check valve component is formed by a first check valve (28), a second check valve (29) and a third check valve (30), an oxygen content analysis component is formed by a first oxygen content analyzer (31) and a second oxygen content analyzer (32), a filter component is formed by a first filter (33) and a second filter (34), a manual ball valve component is formed by a first manual ball valve (35), a second manual ball valve (36), a third manual ball valve (37), a fourth manual ball valve (38), a fifth manual ball valve (39), a sixth manual ball valve (40), a seventh manual ball valve (41) and an eighth manual ball valve (42), a manual butterfly valve component is formed by a first manual butterfly valve (43) and a second manual butterfly valve (44), the ammonia water pump is characterized in that an ammonia water pump assembly is composed of a first ammonia water pump (54) and a second ammonia water pump (55), and a connecting pipe assembly is composed of a first connecting pipe (56), a second connecting pipe (57), a third connecting pipe (58), a fourth connecting pipe (59), a fifth connecting pipe (60), a sixth connecting pipe (61), a seventh connecting pipe (62), an eighth connecting pipe (63), a ninth connecting pipe (64), a tenth connecting pipe (65), an eleventh connecting pipe (66), a twelfth connecting pipe (67), a thirteenth connecting pipe (68), a fourteenth connecting pipe (69), a fifteenth connecting pipe (70), a sixteenth connecting pipe (71), a seventeenth connecting pipe (72) and an eighteenth connecting pipe (73).

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