CN214764132U

CN214764132U - Tubular furnace flue gas treatment system

Info

Publication number: CN214764132U
Application number: CN202120585568.XU
Authority: CN
Inventors: 刘新文; 郭珈全; 刘树兰; 包竹青; 李亚泽
Original assignee: Jinan Zhongjiao Xianke Environmental Protection Technology Co ltd
Current assignee: Jinan Zhongjiao Xianke Environmental Protection Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-19
Anticipated expiration: 2031-03-23

Abstract

The utility model relates to a technical field is administered to tube furnace flue gas, discloses a tube furnace flue gas treatment system, the outside from the top down of inlet pipe is provided with first local pressure gauge and first teletransmission manometer respectively, the exit end joint of draught fan has the mounting panel, the adapter sleeve is installed on the top of mounting panel, the upper end threaded connection of adapter sleeve has the second outlet pipe, one side from the top down of second outlet pipe is provided with second local pressure gauge, second teletransmission manometer, local thermometer and teletransmission thermometer respectively, the outside of first outlet pipe from left to right is provided with high temperature butterfly valve, first cut-off valve and combustible gas detector respectively. The existing flue gas desulfurization and denitrification device of the coke oven is utilized to remove nitrogen oxides and sulfur dioxide in flue gas, so that the standard emission of sulfur dioxide and nitrogen oxides is realized, the normal operation of the coke oven is not influenced, and the working efficiency of the coke oven can be effectively improved.

Description

Tubular furnace flue gas treatment system

Technical Field

The utility model relates to a tubular furnace flue gas administers technical field, specifically is a tubular furnace flue gas administers system.

Background

The tube furnace is an oil continuous heating device consisting of metal tubes. The method is used for processes such as washing oil debenzolization, coal tar distillation, naphthalene distillation, benzene hydrogenation, delayed coking and the like. The tubular furnace has various types, the outer shape of the tubular furnace is cylindrical and square box-shaped, metal furnace tubes can be vertically or horizontally arranged, a coking plant mainly adopts a cylindrical five-tube type heating furnace, and the furnace bodies of the tubular furnace have the same basic structure no matter what type of tubular furnace, and mainly comprise a radiation chamber, a convection chamber and a chimney. Along with the more and more strict environmental protection requirement, the direct emission of the flue gas of the tube furnace can not meet the environmental protection requirement, and therefore the flue gas of the tube furnace needs to be treated and then is emitted up to the standard.

However, when the flue gas is treated at present, the normal operation of the coke oven can be influenced, so that the work is inconvenient, and meanwhile, when the draught fan is connected with the outlet pipeline, the draught fan can be connected by adopting a plurality of bolts, so that the connection mode is troublesome, and meanwhile, the sealing performance is poor. Accordingly, one skilled in the art provides a flue gas treatment system for a tube furnace to solve the problems set forth in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tubular furnace flue gas treatment system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a tubular furnace flue gas treatment system, includes the draught fan, the entrance point of draught fan is connected with the inlet pipe way, the one end intercommunication of inlet pipe way has the tubular furnace, and the outside of inlet pipe way is close to the position department of tubular furnace and is provided with the second trip valve, one side of tubular furnace is provided with pneumatic actuator, the outside from the top down of inlet pipe way is provided with first in situ pressure gauge and first teletransmission manometer respectively, the exit end joint of draught fan has the mounting panel, the adapter sleeve is installed on the top of mounting panel, the upper end threaded connection of adapter sleeve has second outlet pipe, the top intercommunication of second outlet pipe has first outlet pipe way, and one side from the top down of second outlet pipe way is provided with second manometer on the spot, second teletransmission manometer, thermometer on the spot thermometer and teletransmission thermometer respectively, the outside of first outlet pipe way from left to right is provided with high temperature butterfly valve respectively, First shut-off valve and combustible gas detector, and the one end of first outlet pipeline is connected with connecting tube.

As a further aspect of the present invention: the pneumatic actuating mechanism, the second stop valve, the first stop valve and the draught fan are interlocked, and the draught fan is a variable frequency fan.

As a further aspect of the present invention: the first in-situ pressure gauge and the second in-situ pressure gauge are identical in structure, the first remote transmission pressure gauge and the second remote transmission pressure gauge are also identical in structure, and the second in-situ pressure gauge, the second remote transmission pressure gauge, the in-situ thermometer and the remote transmission thermometer are arranged on the same vertical line.

As a further aspect of the present invention: the first cut-off valve and the second cut-off valve are identical in structure, and the high-temperature-resistant resin material is coated outside the high-temperature butterfly valve.

As a further aspect of the present invention: the cardboard is installed to the upper surface symmetry of draught fan, the draw-in groove with the mutual adaptation of cardboard is seted up to the lower surface symmetry of mounting panel, and the front surface and the rear surface of mounting panel all are provided with fastening bolt, the inside of adapter sleeve is provided with the filter screen, the upper surface of draught fan is provided with sealed the pad.

As a further aspect of the present invention: the filter screen is provided with two sets ofly at the inside symmetry of adapter sleeve, the material of filter screen is the activated carbon material, the adapter sleeve is cylindrical and installs the intermediate position department at the mounting panel upper surface.

As a further aspect of the present invention: the cardboard is provided with two sets ofly for the rectangle upper surface symmetry at the draught fan, sealed the pad is the rubber material, the screw has been seted up to the outside of cardboard, fastening bolt's end runs through the outside of mounting panel and extends to the inside and the screw threaded connection of screw.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the tubular furnace flue gas of setting send coke oven flue house steward, it has flue gas desulfurization denitrification facility to utilize the coke oven, nitrogen oxide and sulfur dioxide in the desorption flue gas, realize the sulfur dioxide, nitrogen oxide discharge to reach standard, do not influence the normal operating of coke oven simultaneously, can its work efficiency of effectual improvement, simultaneously when being connected draught fan and second outlet pipeline, only need to pass through the block of cardboard and draw-in groove, thereby can be quick be connected mounting panel and draught fan, and through the setting of sealed pad, can the leakproofness of effectual increase junction, make the effect of administering to the flue gas better.

Drawings

FIG. 1 is a schematic structural view of a flue gas treatment system for a tube furnace;

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

FIG. 3 is a schematic structural diagram of a clamping plate in a flue gas treatment system of a tube furnace.

In the figure: 1. connecting a pipeline; 2. a butterfly valve; 3. a first shut-off valve; 4. a combustible gas detector; 5. a first outlet conduit; 6. a second shut-off valve; 7. a pneumatic actuator; 8. an inlet duct; 9. a tube furnace; 10. a first in-situ pressure gauge; 11. a first remote transmission pressure gauge; 12. a second in-situ pressure gauge; 13. a second remote transmission pressure gauge; 14. an in situ thermometer; 15. a second outlet conduit; 16. a remote thermometer; 17. connecting sleeves; 18. an induced draft fan; 19. fastening a bolt; 20. clamping a plate; 21. mounting a plate; 22. a filter screen; 23. a card slot; 24. and a gasket.

Detailed Description

Referring to fig. 1-3, in the embodiment of the present invention, a tubular furnace flue gas treatment system includes an induced draft fan 18, an inlet end of the induced draft fan 18 is connected to an inlet pipe 8, one end of the inlet pipe 8 is communicated with a tubular furnace 9, a second cut-off valve 6 is disposed at a position close to the tubular furnace 9 outside the inlet pipe 8, a pneumatic actuator 7 is disposed at one side of the tubular furnace 9, a first in-situ pressure gauge 10 and a first remote pressure gauge 11 are respectively disposed at an outer side of the inlet pipe 8 from top to bottom, an outlet end of the induced draft fan 18 is clamped with a mounting plate 21, a connecting sleeve 17 is mounted at a top end of the mounting plate 21, an upper end of the connecting sleeve 17 is in threaded connection with a second outlet pipe 15, clamping plates 20 are symmetrically mounted on an upper surface of the induced draft fan 18, clamping grooves 23 mutually adapted to the clamping plates 20 are symmetrically formed on a lower surface of the mounting plate 21, and fastening bolts 19 are disposed on a front surface and a rear surface of the mounting plate 21, the filter screen 22 is arranged inside the connecting sleeve 17, two groups of filter screens 22 are symmetrically arranged inside the connecting sleeve 17, the filter screens 22 are all made of activated carbon materials, the connecting sleeve 17 is cylindrically arranged at the middle position of the upper surface of the mounting plate 21, the upper surface of the draught fan 18 is provided with the sealing gasket 24, the clamping plate 20 is rectangular and is symmetrically arranged on the upper surface of the draught fan 18, the sealing gasket 24 is made of rubber, the outer part of the clamping plate 20 is provided with a screw hole, the tail end of the fastening bolt 19 penetrates through the outer part of the mounting plate 21 and extends to the inner part of the screw hole to be in threaded connection with the screw hole, the clamping plate 20 is clamped with the clamping groove 23 arranged on the lower surface of the mounting plate 21, the clamping plate 20 can be rapidly installed and fixed through the action of the fastening bolt 19, the mounting plate 21 can be rapidly connected with the draught fan 18, the sealing gasket 24 is arranged at the air outlet end of the draught fan 18, thereby can effectually increase the leakproofness of junction, and the upper surface intercommunication at mounting panel 21 has adapter sleeve 17, is provided with two sets of filter screens 22 in adapter sleeve 17's inside, utilizes filter screen 22 to filter the flue gas to the feasible effect of administering the flue gas is better.

In fig. 1: the top end of the second outlet pipeline 15 is communicated with a first outlet pipeline 5, one side of the second outlet pipeline 15 is respectively provided with a second local pressure gauge 12, a second remote pressure gauge 13, a local temperature gauge 14 and a remote temperature gauge 16 from top to bottom, the outside of the first outlet pipeline 5 is respectively provided with a high-temperature butterfly valve 2, a first cut-off valve 3 and a combustible gas detector 4 from left to right, one end of the first outlet pipeline 5 is connected with a connecting pipeline 1, a pneumatic actuator 7, a second cut-off valve 6, the first cut-off valve 3 and an induced draft fan 18 are interlocked, the induced draft fan 18 is a variable frequency fan, the first local pressure gauge 10 and the second local pressure gauge 12 have the same structure, the first remote pressure gauge 11 and the second remote pressure gauge 13 have the same structure, the second local pressure gauge 12, the second remote pressure gauge 13, the local temperature gauge 14 and the remote temperature gauge 16 are arranged on the same vertical line, first shut-off valve 3 and second trip valve 6's structure is the same, and the outside of high temperature butterfly valve 2 scribbles high temperature resistant resin material, detects that combustible gas exceeds standard (there is the possibility that exceeds standard under the condition of gas leakage) when combustible gas detector 4, and interlocking control tubular furnace 9 chimney baffle is opened, and first shut-off valve 3 of flue gas pipe and second trip valve 6 are closed around draught fan 18, and tubular furnace 9 flue gas stops to be sent to the coke oven, switches to directly discharging from tubular furnace 9 chimney neck, guarantees system safety operation, the utility model discloses the 9 flue gas of tubular furnace send coke oven flue house steward, utilize the coke oven to have flue gas desulfurization denitrification facility, nitrogen oxide and sulfur dioxide in the desorption flue gas, realize sulfur dioxide, nitrogen oxide discharge to reach standard, do not influence the normal operating of coke oven simultaneously, can its work efficiency of effectual improvement.

The utility model discloses a theory of operation is: during work, collected flue gas is sent to a connecting pipeline 1 through an induced draft fan 18, the connecting pipeline 1 is connected with a coke oven flue gas desulfurization and denitrification device, so that the flue gas can enter the interior of the coke oven flue gas desulfurization and denitrification device, a pneumatic actuating mechanism 7 is additionally arranged on one side of a tubular furnace 9, and an inlet pipeline 8 of the induced draft fan 18 is provided with a second cut-off valve 6, a first local pressure gauge 10 and a first remote pressure gauge 11; a second local pressure gauge 12, a second remote pressure gauge 13, a local thermometer 14 and a remote thermometer 16 are arranged on a second outlet pipeline 15 of the induced draft fan 18, meanwhile, a combustible gas detector 4, a first cut-off valve 3 and a high-temperature-resistant butterfly valve 2 are arranged outside a first outlet pipeline 5, the first outlet pipeline 5 is communicated with the second outlet pipeline 15, the combustible gas detector 4 is interlocked with a chimney baffle pneumatic actuating mechanism 7, a second cut-off valve 6, the induced draft fan 18 and the first cut-off valve 3, when the combustible gas exceeds the standard, the chimney baffle pneumatic actuating mechanism 7 is controlled to be opened in an interlocking manner, and a second cut-off valve 6 and the first cut-off valve 3 of a flue gas pipe in front of and behind the induced draft fan 18 are closed; when the induced draft fan 18 is in emergency stop, the automatic interlocking chimney baffle pneumatic actuating mechanism 7 is opened, and the second cut-off valve 6 and the first cut-off valve 3 of the front flue gas pipe and the rear flue gas pipe of the induced draft fan 18 are closed; the frequency of the induced draft fan 18 can be automatically controlled through the first remote pressure gauge 11 and the second remote pressure gauge 13, and the stability of the suction force in front of the induced draft fan 18 is kept; monitoring the temperature of the flue gas of the tubular furnace 9 sent to the coke oven in real time through a remote thermometer 16; when the system needs to be stopped and overhauled, the high-temperature butterfly valve 2 is closed, the cut-off between the high-temperature butterfly valve and a coke oven flue main pipe can be realized, namely, when a combustible gas detector 4 detects that combustible gas exceeds the standard (the possibility of exceeding the standard exists under the condition of gas leakage), a chimney baffle of the tubular oven 9 is controlled to be opened in an interlocking manner, a first cut-off valve 3 and a second cut-off valve 6 of flue gas pipes in front of and behind an induced draft fan 18 are closed, the flue gas of the tubular oven 9 stops being sent to the coke oven, the flue gas is switched to be directly discharged from a chimney port of the tubular oven 9, the safe operation of the system is ensured, the existing flue gas desulfurization and denitrification device of the coke oven is utilized to remove nitrogen oxide and sulfur dioxide in the flue gas, the standard emission of the sulfur dioxide and the nitrogen oxide is realized, the normal operation of the coke oven is not influenced, and meanwhile, when the induced draft fan 18 is connected with a second outlet pipeline 15, a connecting sleeve 17 communicated with the upper surface of a mounting plate 21 can be in threaded connection with the second outlet pipeline 15, and the clamping groove 23 arranged on the lower surface of the mounting plate 21 is mutually clamped with the clamping plate 20 arranged at the air outlet end of the induced draft fan 18, so that the mounting plate 21 can be quickly connected with the induced draft fan 18, and simultaneously, by rotating the fastening bolt 19 outside the mounting plate 21, so that the ends of the fastening bolts 19 extend through the outside of the mounting plate 21 to the inside of screw holes formed in the outside of the chucking plate 20 and are threadedly coupled with the screw holes, thereby fixing the clamping plate 20, namely rapidly communicating the induced draft fan 18 with the second outlet pipeline 15, and simultaneously arranging a sealing gasket 24 at the air outlet end of the induced draft fan 18, thereby effectively increasing the sealing performance of the connecting position, and the connecting sleeve 17 is communicated with the upper surface of the mounting plate 21, two groups of filter screens 22 are arranged in the connecting sleeve 17, and the flue gas can be filtered by the filter screens 22, so that the flue gas treatment effect is better.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tubular furnace flue gas treatment system, includes draught fan (18), its characterized in that, the entrance connection of draught fan (18) has inlet pipe way (8), the one end intercommunication of inlet pipe way (8) has tubular furnace (9), and the outside of inlet pipe way (8) is close to the position department of tubular furnace (9) and is provided with second trip valve (6), one side of tubular furnace (9) is provided with pneumatic actuator (7), the outside from the top down of inlet pipe way (8) is provided with first manometer (10) on the spot and first teletransmission manometer (11) respectively, the exit end joint of draught fan (18) has mounting panel (21), adapter sleeve (17) is installed on the top of mounting panel (21), the upper end threaded connection of adapter sleeve (17) has second outlet pipeline (15), the top intercommunication of second outlet pipeline (15) has first outlet pipeline (5), and one side of the second outlet pipeline (15) is respectively provided with a second local pressure gauge (12), a second remote pressure gauge (13), a local thermometer (14) and a remote thermometer (16) from top to bottom, the outside of the first outlet pipeline (5) is respectively provided with a high-temperature butterfly valve (2), a first cut-off valve (3) and a combustible gas detector (4) from left to right, and one end of the first outlet pipeline (5) is connected with a connecting pipeline (1).

2. The tubular furnace flue gas treatment system according to claim 1, wherein the pneumatic actuator (7), the second cut-off valve (6), the first cut-off valve (3) and the induced draft fan (18) are interlocked, and the induced draft fan (18) is a variable frequency fan.

3. The flue gas treatment system of the tube furnace of claim 1, wherein the first on-site pressure gauge (10) and the second on-site pressure gauge (12) have the same structure, the first remote pressure gauge (11) and the second remote pressure gauge (13) have the same structure, and the second on-site pressure gauge (12), the second remote pressure gauge (13), the on-site temperature gauge (14) and the remote temperature gauge (16) are arranged on the same vertical line.

4. The flue gas treatment system of the tubular furnace as claimed in claim 1, wherein the first cut-off valve (3) and the second cut-off valve (6) are identical in structure, and the high-temperature butterfly valve (2) is coated with a high-temperature resistant resin material on the outside.

5. The tubular furnace flue gas treatment system according to claim 1, wherein the clamping plates (20) are symmetrically installed on the upper surface of the induced draft fan (18), the clamping grooves (23) which are matched with the clamping plates (20) are symmetrically formed in the lower surface of the mounting plate (21), the front surface and the rear surface of the mounting plate (21) are provided with fastening bolts (19), the filter screen (22) is arranged inside the connecting sleeve (17), and the sealing gasket (24) is arranged on the upper surface of the induced draft fan (18).

6. The flue gas treatment system of the tube furnace as claimed in claim 5, wherein the filter screens (22) are symmetrically arranged in two groups in the connecting sleeve (17), the filter screens (22) are all made of activated carbon materials, and the connecting sleeve (17) is cylindrically arranged in the middle of the upper surface of the mounting plate (21).

7. The tubular furnace flue gas treatment system according to claim 5, wherein the clamping plates (20) are rectangular and are symmetrically arranged in two groups on the upper surface of the induced draft fan (18), the sealing gaskets (24) are made of rubber, screw holes are formed in the outer portions of the clamping plates (20), and the tail ends of the fastening bolts (19) penetrate through the outer portions of the mounting plates (21) and extend to the inner portions of the screw holes to be in threaded connection with the screw holes.