CN112610890A - Explosion-proof safety protection device for tail gas in urea production system - Google Patents
Explosion-proof safety protection device for tail gas in urea production system Download PDFInfo
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- CN112610890A CN112610890A CN202011476807.4A CN202011476807A CN112610890A CN 112610890 A CN112610890 A CN 112610890A CN 202011476807 A CN202011476807 A CN 202011476807A CN 112610890 A CN112610890 A CN 112610890A
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- pipe
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- flue gas
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- fixedly connected
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/08—Protection of installations or persons from the effects of high voltage induced in the pipe-line
Abstract
The invention discloses an explosion-proof safety protection device for tail gas in a urea production system, which comprises a base, wherein a U-shaped support is fixed at the top end of the base, a high-pressure fan is fixed on the inner top surface of the U-shaped support, an air inlet of the high-pressure fan is communicated with a connecting pipe, one end of the connecting pipe is fixedly connected with a cooling box, an air outlet of the high-pressure fan is communicated with an exhaust pipe, one end of the exhaust pipe penetrates through the U-shaped support and is fixedly connected with the U-shaped support, and a cooling liquid box is fixed on one side of the inner top surface of the U-shaped support. This be used for explosion-proof safety device of tail gas in the urea production system has the pressure release function, avoids the too big danger that takes place to explode of pressure, even if having started a fire, also can take out gas fast and isolated other pipelines, the condition of stopping burning explosion to fine protection the safety of device, and operating personnel's security on every side.
Description
Technical Field
The invention relates to the technical field of urea production, in particular to an explosion-proof safety protection device for tail gas in a urea production system.
Background
In the industrial production process of the urea, the treatment of tail gas is very important, and an explosion-proof protection device of the urea is an important device for treating the tail gas.
The existing explosion-proof device is provided with an air pressure sensor inside, and achieves normal emission and safety of tail gas by observing the internal air pressure and controlling the stability of the internal air pressure, but has some defects, when the air pressure is increased, the purpose of reducing the air pressure is achieved only by controlling the air input at an air inlet pipe, and in order to meet the aim, an independent air storage tank or a transit tank is necessarily arranged, so that the economic cost is increased, the storage of the air in the tank body is dangerous to a certain extent, in addition, if an explosion occurs, the explosion immediately before the explosion does not have an emergency treatment measure, the explosion strength cannot be restrained or prevented, and therefore, the tail gas treatment explosion-proof device which is good in explosion-proof performance and can reduce the economic cost is needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an explosion-proof safety protection device for tail gas in a urea production system.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an explosion-proof safety device who is used for tail gas in the urea production system, one side fixedly connected with dead lever of cooler bin to the one end of dead lever is fixed in the inner wall of U type support, the cooler bin is the cylinder type box to the inner wall of cooler bin is fixed with annular tank, annular tank's top and bottom all are provided with vaporific shower nozzle, one side intercommunication of annular tank has the coolant liquid pipe, the other end of coolant liquid pipe runs through the cooler bin and is linked together with the coolant liquid case.
Preferably: the top of the base is fixedly provided with a first purifying box, the first purifying box is arranged in the U-shaped bracket, the top of the first purifying box is fixedly provided with a flue gas box, the bottom end of one side of the first purifying box is communicated with a circulating refrigeration device, two first baffles are fixed in the first purifying box, a partition plate is arranged between the two first baffles, the partition plate is fixedly connected with the inner wall of the first purifying box, the top end of the first purifying box is fixedly connected with a first gas pipe, a second gas pipe, a third gas pipe and a fourth gas pipe, the first gas pipe, the second gas pipe, the third gas pipe and the fourth gas pipe are communicated with the flue gas box, the inner wall of the flue gas box is fixedly provided with the U-shaped partition plate, the first gas pipe is arranged in the U-shaped partition plate, the fourth gas pipe is arranged in the U-shaped partition plate at the other side, and the second gas pipe and the third gas pipe are arranged between the two U-shaped partition plates, the middle part of the top of the flue gas box is communicated with an air suction pipe, and one end of the air suction pipe is communicated with the bottom end of the cooling box.
Preferably: the base top is fixed with two second purifying boxes to two second purifying boxes set up respectively in the both sides of first purifying box, the top of second purifying box and the bottom fixed connection of flue gas case, the lateral wall of second purifying box all is fixed with U type pipeline, and the one end and the flue gas case of type pipeline communicate mutually, the inner wall of second purifying box is fixed with the second baffle, second baffle surface embedding has L type pipe, the lateral wall intercommunication of second purifying box has the second blast pipe, the inner wall sliding connection of flue gas case has two sealed piston boards, and the relative one side of two sealed piston boards all is fixed with the baroceptor.
Preferably: a smoke inlet pipe is fixed on one side of the smoke box and is arranged between two sealing piston plates and communicated with one U-shaped partition plate, a first exhaust pipe is communicated with the other end of the smoke box and arranged between the two sealing piston plates and communicated with the other U-shaped partition plate, two positioning rods are fixedly connected on one side of each sealing piston plate, one ends of the two positioning rods penetrate through the side wall of the smoke box and are in fit sealing sliding connection with the side wall, a sliding rod is arranged between the two positioning rods, one end of the sliding rod penetrates through the side wall of the smoke box and is in fit sealing sliding connection with the side wall, a transverse plate is fixed at one end of the sliding rod, hydraulic cylinders are fixed on two sides of the smoke box, the output ends of the hydraulic cylinders are fixedly connected with the side wall of the transverse plate, and fixing plates are respectively fit on the inner top surface and the inner bottom surface of the smoke box, and all the embedding has fixed pipe on the fixed plate, the fixed pipe other end runs through sealed piston board and rather than laminating sliding connection, and fixed outside of tubes all cup joints sealed sliding connection's sealing sleeve, sealing sleeve one end and sealed piston board one side fixed connection, evenly be provided with a plurality of through-holes on the outer wall of fixed pipe one side, be provided with the check valve in the fixed pipe, two slide bars of one side fixedly connected with of fixed plate to the one end of slide bar is provided with the spring section of thick bamboo.
Preferably: spring cylinder one side and flue gas incasement wall fixed connection, sliding connection has the slider in the spring cylinder, the one end and the slider one side fixed connection of slide bar, the inner wall of spring cylinder is fixed with the spring to the one end and the slider fixed connection of spring, one side fixedly connected with spare pipe of pipe is advanced to the flue gas, spare pipe and flue gas are advanced and are all fixed with the valve on the pipe, the reserve purifying box of one end fixedly connected with of spare pipe, one side fixedly connected with third blast pipe of reserve purifying box.
Preferably: high pressure positive blower and circulating refrigeration device pass through circuit and external power electric connection, the atmospheric pressure inductor passes through circuit and external controller electric connection, the pneumatic cylinder passes through the pipeline and is connected with the hydraulic pressure station, sealed piston plate adopts carbide material to make, the fixed sealing washer that is provided with in locating lever and flue gas case junction.
Advantageous effects
The invention provides an explosion-proof safety protection device for tail gas in a urea production system. The method has the following beneficial effects:
(1) this be used for explosion-proof safety device of tail gas in the urea production system, this device is through sealed piston board, the setting of pneumatic cylinder isotructure, make the device have the pressure release function, avoid the too big danger that explodes of pressure, after atmospheric pressure resumes to stabilize, start two sets of pneumatic cylinders and reset, make the device resume normal operating, make tail gas get into the emergency treatment incasement along the breathing pipe through being provided with high-pressure positive blower, make the inside pressure of flue gas case reduce rapidly, even if fire has been started, also can take out gas fast and completely cut off other pipelines like this, absolutely the burning explosion condition, thereby fine protection the safety of device, and operating personnel's security on every side.
(2) The explosion-proof safety protection device for tail gas in the urea production system can increase the stress intensity of the sealing piston plate by being provided with the spring cylinders, so that the device can normally complete pressure relief work, and the safety of the device is improved.
Drawings
FIG. 1 is a top cross-sectional view of a structural flue gas box according to the present invention;
FIG. 2 is a front view of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure A of the present invention;
FIG. 4 is a structural view of a first purification tank of the structure according to the present invention;
fig. 5 is a structural view of a second purification tank of the structure of the present invention.
In the figure: 1 base, 2U-shaped bracket, 3 high pressure fan, 4 connecting pipe, 5 cooling liquid tank, 6 exhaust pipe, 7 cooling tank, 8 fixing rod, 9 cooling liquid pipe, 10 fixing frame, 11 annular water tank, 12 mist spray nozzle, 13 first purifying tank, 14 flue gas tank, 15 circulating refrigerating device, 16 first baffle, 17 baffle, 18 first air pipe, 19 second air pipe, 20 third air pipe, 21 fourth air pipe, 22U-shaped baffle, 23 air suction pipe, 24U-shaped pipeline, 25 second purifying tank, 26 second exhaust pipe, 27 sealing piston plate, 28 positioning rod, 29 transverse plate, 30 hydraulic cylinder, 31 sealing sleeve, 32 fixing pipe, 33 one-way valve, 34 through hole, 35 fixing plate, 36 sliding rod, 37 spring cylinder, 38 sliding block, 39 spring, 40 air pressure sensor, 41 flue gas inlet pipe, 42 first exhaust pipe, 43 sliding rod, 44 standby pipeline, 45 standby purifying tank, 46 third exhaust pipe, 43 third exhaust pipe, 47 second baffle, 48L type pipe.
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. 1-5, the present invention provides a technical solution: the utility model provides an explosion-proof safety device that is used for tail gas in production urea system, includes base 1, its characterized in that: a U-shaped bracket 2 is fixed at the top end of a base 1, a high pressure fan 3 is fixed on the inner top surface of the U-shaped bracket 2, an air inlet of the high pressure fan 3 is communicated with a connecting pipe 4, one end of the connecting pipe 4 is fixedly connected with a cooling tank 7, an air outlet of the high pressure fan 3 is communicated with an exhaust pipe 6, one end of the exhaust pipe 6 penetrates through the U-shaped bracket 2 and is fixedly connected with the U-shaped bracket 2, a cooling liquid tank 5 is fixed on one side of the inner top surface of the U-shaped bracket 2, a fixing frame 10 is fixed at the bottom of the cooling liquid tank 5, the fixing frame 10 is fixed on the inner wall of the U-shaped bracket 2, a fixing rod 8 is fixedly connected with one side of the cooling tank 7, one end of the fixing rod 8 is fixed on the inner wall of the U-shaped bracket 2, the cooling tank 7 is a cylindrical box body, an annular water tank 11 is fixed on, the other end of the cooling liquid pipe 9 penetrates through the cooling tank 7 and is communicated with the cooling liquid tank 5.
Further: the top of the base 1 is fixed with a first purifying box 13, the first purifying box 13 is arranged inside the U-shaped bracket 2, the top of the first purifying box 13 is fixed with a flue gas box 14, the bottom end of one side of the first purifying box 13 is communicated with a circulating refrigeration device 15, two first baffles 16 are fixed inside the first purifying box 13, a partition 17 is arranged between the two first baffles 16, the partition 17 is fixedly connected with the inner wall of the first purifying box 13, the top end of the first purifying box 13 is fixedly connected with a first gas pipe 18, a second gas pipe 19, a third gas pipe 20 and a fourth gas pipe 21, the first gas pipe 18, the second gas pipe 19, the third gas pipe 20 and the fourth gas pipe 21 are all communicated with the flue gas box 14, the inner wall of the flue gas box 14 is fixed with a U-shaped partition 22, the first gas pipe 18 is arranged inside the U-shaped partition 22, the fourth gas pipe 21 is arranged inside the U-shaped partition 22 at the other side, the second gas pipe 19 and the third gas pipe 20 are arranged between the two U-shaped partitions 22, the middle part of the top of the flue gas box 14 is communicated with an air suction pipe 23, and one end of the air suction pipe 23 is communicated with the bottom end of the cooling box 7.
Further: base 1 top is fixed with two second purifying tanks 25, and two second purifying tanks 25 set up respectively in the both sides of first purifying tank 13, the top of second purifying tank 25 and the bottom fixed connection of flue gas case 14, the lateral wall of second purifying tank 25 all is fixed with U type pipeline 24, the one end and the flue gas case 14 of pipeline 24 are linked together, the inner wall of second purifying tank 25 is fixed with second baffle 47, second baffle 47 surface embedding has L type pipe 48, the lateral wall intercommunication of second purifying tank 25 has second blast pipe 26, the inner wall sliding connection of flue gas case 14 has two sealed piston boards 27, the relative one side of two sealed piston boards 27 all is fixed with atmospheric pressure inductor 40.
Further: a smoke inlet pipe 41 is fixed on one side of the smoke box 14, the smoke inlet pipe 41 is arranged between two sealing piston plates 27, the smoke inlet pipe 41 is communicated with one U-shaped partition plate 22, the other end of the smoke box 14 is communicated with a first exhaust pipe 42, the first exhaust pipe 42 is arranged between the two sealing piston plates 27, the first exhaust pipe 42 is communicated with the other U-shaped partition plate 22, one side of the sealing piston plate 27 is fixedly connected with two positioning rods 28, one end of each positioning rod 28 penetrates through the side wall of the smoke box 14 and is jointed, sealed and slidably connected with the side wall, a sliding rod 43 is arranged between the two positioning rods 28, one end of the sliding rod 43 penetrates through the side wall of the smoke box 14 and is jointed, sealed and slidably connected with the side wall, a transverse plate 29 is fixed on one end of the sliding rod 43, hydraulic cylinders 30 are fixed on both sides of the smoke box 14, the output ends of the hydraulic cylinders 30 are fixedly connected with the side wall of the transverse plate 29, a fixing plate 35, and all the embedding has fixed pipe 32 on the fixed plate 35, the fixed pipe 32 other end runs through sealed piston plate 27 and rather than laminating sliding connection, fixed pipe 32 all cup joints sealed sliding connection's sealing sleeve 31 outward, sealing sleeve 31 one end and sealed piston plate 27 one side fixed connection, evenly be provided with a plurality of through-holes 34 on the outer wall of fixed pipe 32 one side, be provided with check valve 33 in the fixed pipe 32, two slide bars 36 of one side fixed connection of fixed plate 35, and the one end of slide bar 36 is provided with spring cartridge 37.
Further: spring case 37 one side and flue gas case 14 inner wall fixed connection, sliding connection has slider 38 in the spring case 37, the one end and the slider 38 one side fixed connection of slide bar 36, the inner wall of spring case 37 is fixed with spring 39, and the one end and the slider 38 fixed connection of spring 39, one side fixedly connected with spare pipe 44 of pipe 41 is advanced to the flue gas, all be fixed with the valve on spare pipe 44 and the flue gas advance pipe 41, the spare purge bin 45 of one end fixedly connected with of spare pipe 44, one side fixedly connected with third blast pipe 46 of spare purge bin 45.
Further: high pressure positive blower 3 and circulating refrigeration device 15 pass through circuit and external power electric connection, and atmospheric pressure inductor 40 passes through circuit and external controller electric connection, and pneumatic cylinder 30 is connected with the hydraulic pressure station through the pipeline, and sealed piston plate 27 adopts carbide material to make, and locating lever 28 and flue gas box 14 junction are fixed and are provided with the sealing washer.
When the device is used, firstly the device is arranged in a working area, each driving power supply is connected to enable the device to be in a standby state, when tail gas is purified, the valve on the standby pipeline 44 is closed, the valve on the flue gas inlet pipe 41 is opened, the tail gas enters the flue gas box 14 along the flue gas inlet pipe 41, the tail gas is purified after entering the flue gas box 14 due to the arrangement of the two U-shaped partition plates 22, the tail gas can only enter the U-shaped partition plate 22 on the left side, then enters the first purification box 13 along the plurality of first air pipes 18, a reaction solution is added into the first purification box 13, the tail gas is purified, the arrangement of the first baffle plate 16 enables the tail gas to fully react with the solution, then the gas enters the space between the two U-shaped partition plates 22 along the second air pipes 19, then enters the first purification box 13 along the plurality of third air pipes 20 again to react with the reaction solution, and finally enters the other U-shaped partition plate 22 through the plurality of fourth air pipes 21, and is discharged to the desulfurization tower through the first exhaust pipe 42 to be purified in the next step, thereby completing the tail gas purification work.
When the pressure between the two U-shaped partition plates 22 increases, the air pressure sensor 40 will transmit a signal to an external controller, the controller will start the two sets of hydraulic cylinders 30 according to the pressure, so that the two sets of hydraulic cylinders 30 extend, the two transverse plates 29 start to move, and thus the two sealing piston plates 27 are driven by the two sliding rods 43 to move, so that the space between the two U-shaped partition plates 22 is enlarged, and the sealing piston plates 27 move, so that the sealing sleeve 31 and the fixed pipe 32 slide, so that the fixed pipes 32 can be communicated with the space between the two U-shaped partition plates 22, so that the air has holes for pressure relief, and the air enters the area between one side of the sealing piston plate 27 and the flue gas box 14, so that the air enters the second purification box 25 through the U-shaped pipeline 24 and enters the purification liquid through the L-shaped pipe 48, thereby purify, discharge along second blast pipe 26, use through above structure cooperation like this for the device has the pressure release function, thereby the danger of the too big explosion of pressure, and after atmospheric pressure resumes to stabilize, start two sets of pneumatic cylinders 30 and reset, make the device resume normal operating.
When the internal pressure is too high and explosion is about to occur, the valve on the air suction pipe 23 is opened at the moment, the valves on the smoke inlet pipe 41, the first exhaust pipe 42 and the two second exhaust pipes 26 are closed through the controller, the oxygen in the smoke box 14 is cut off, meanwhile, the high-pressure fan 3 is started, the high-pressure fan 3 generates suction force in the cooling box 7 after being started, so that gas can rapidly enter the cooling box 7 along the air suction pipe 23, then is cooled through the mist spray head 12 on the annular water box 11 and then enters the emergency treatment box along the air suction pipe 23, the internal pressure of the smoke box 14 is rapidly reduced, the fire is started in time, the gas can be rapidly sucked and cut off other pipelines, the combustion and explosion conditions are cut off, the safety of the device and the safety of surrounding operators are well protected, and a plurality of spring cylinders 37 are arranged, through a plurality of springs 39 that set up in the spring case 37, can increase the atress intensity of sealed piston plate 27 to guarantee that the device can normally accomplish the pressure release work, thereby improve this device's security.
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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an explosion-proof safety device that is used for tail gas in production urea system, includes base (1), its characterized in that: the top end of the base (1) is fixed with a U-shaped support (2), the inner top surface of the U-shaped support (2) is fixed with a high-pressure fan (3), an air inlet of the high-pressure fan (3) is communicated with a connecting pipe (4), one end of the connecting pipe (4) is fixedly connected with a cooling tank (7), an air outlet of the high-pressure fan (3) is communicated with an exhaust pipe (6), one end of the exhaust pipe (6) penetrates through the U-shaped support (2) and is fixedly connected with the U-shaped support, one side of the inner top surface of the U-shaped support (2) is fixed with a cooling liquid tank (5), the bottom of the cooling liquid tank (5) is fixed with a fixing frame (10), the fixing frame (10) is fixed on the inner wall of the U-shaped support (2), one side of the cooling tank (7) is fixedly connected with a fixing rod (8), and one end of the fixing, cooler bin (7) are the cylinder type box to the inner wall of cooler bin (7) is fixed with annular tank (11), the top and the bottom of annular tank (11) all are provided with vaporific shower nozzle (12), one side intercommunication of annular tank (11) has coolant liquid pipe (9), the other end of coolant liquid pipe (9) runs through cooler bin (7) and is linked together with coolant liquid case (5).
2. An explosion-proof safety device for tail gas in a urea production system according to claim 1, characterized in that: the top of the base (1) is fixed with a first purifying box (13), the first purifying box (13) is arranged inside the U-shaped support (2), the top of the first purifying box (13) is fixed with a flue gas box (14), the bottom end of one side of the first purifying box (13) is communicated with a circulating refrigeration device (15), two first baffles (16) are fixed inside the first purifying box (13), a partition plate (17) is arranged between the two first baffles (16), the partition plate (17) is fixedly connected with the inner wall of the first purifying box (13), the top end of the first purifying box (13) is fixedly connected with a first gas pipe (18), a second gas pipe (19), a third gas pipe (20) and a fourth gas pipe (21), and the first gas pipe (18), the second gas pipe (19), the third gas pipe (20) and the fourth gas pipe (21) are all communicated with the flue gas box (14), the flue gas box (14) inner wall all is fixed with U type baffle (22), first trachea (18) set up inside U type baffle (22), and fourth trachea (21) set up in U type baffle (22) of opposite side, and second trachea (19) and third trachea (20) set up between two U type baffles (22), the middle part intercommunication at flue gas box (14) top has breathing pipe (23), the one end of breathing pipe (23) is linked together with the bottom of cooler bin (7).
3. An explosion-proof safety device for tail gas in a urea production system according to claim 2, characterized in that: the base (1) top is fixed with two second purifying tanks (25), and two second purifying tanks (25) set up respectively in the both sides of first purifying tank (13), the top of second purifying tank (25) and the bottom fixed connection of flue gas case (14), the lateral wall of second purifying tank (25) all is fixed with U type pipeline (24), the one end and the flue gas case (14) of type pipeline (24) are linked together, the inner wall of second purifying tank (25) is fixed with second baffle (47), second baffle (47) surface embedding has L type pipe (48), the lateral wall intercommunication of second purifying tank (25) has second blast pipe (26), the inner wall sliding connection of flue gas case (14) has two sealed piston boards (27), and the relative one side of two sealed piston boards (27) all is fixed with atmospheric pressure inductor (40).
4. An explosion-proof safety device for tail gas in a urea production system according to claim 3, characterized in that: one side of the flue gas box (14) is fixed with a flue gas inlet pipe (41), the flue gas inlet pipe (41) is arranged between two sealing piston plates (27), the flue gas inlet pipe (41) is communicated with one U-shaped partition plate (22), the other end of the flue gas box (14) is communicated with a first exhaust pipe (42), the first exhaust pipe (42) is arranged between the two sealing piston plates (27), the first exhaust pipe (42) is communicated with the other U-shaped partition plate (22), one side of each sealing piston plate (27) is fixedly connected with two positioning rods (28), one end of each positioning rod (28) penetrates through the side wall of the flue gas box (14) and is in fit sealing sliding connection with the side wall, a sliding rod (43) is arranged between the two positioning rods (28), one end of the sliding rod (43) penetrates through the side wall of the flue gas box (14) and is in fit sealing sliding connection with the side wall, one end of the sliding rod (43) is fixed with a transverse plate (29), both sides of the flue gas box (14) are fixed with hydraulic cylinders (30), the output ends of the hydraulic cylinders (30) are fixedly connected with the side walls of the transverse plates (29), the inner top surface and the inner bottom surface of the smoke box (14) are both attached with a fixed plate (35), and the fixed plate (35) is embedded with a fixed pipe (32), the other end of the fixed pipe (32) penetrates through the sealing piston plate (27) and is jointed with the sealing piston plate in a sliding manner, the fixed pipe (32) is sleeved with a sealing sleeve (31) in a sealing sliding manner, one end of the sealing sleeve (31) is fixedly connected with one side of the sealing piston plate (27), a plurality of through holes (34) are uniformly arranged on the outer wall of one side of the fixed pipe (32), be provided with check valve (33) in fixed pipe (32), one side fixedly connected with two slide bars (36) of fixed plate (35) to the one end of slide bar (36) is provided with spring cartridge (37).
5. An explosion-proof safety device for tail gas in a urea production system according to claim 4, characterized in that: spring cylinder (37) one side and flue gas case (14) inner wall fixed connection, sliding connection has slider (38) in spring cylinder (37), the one end and slider (38) one side fixed connection of slide bar (36), the inner wall of spring cylinder (37) is fixed with spring (39) to the one end and slider (38) fixed connection of spring (39), one side fixedly connected with spare pipe (44) of pipe (41) are advanced to the flue gas, all be fixed with the valve on spare pipe (44) and flue gas advance pipe (41), the reserve purifying box (45) of one end fixedly connected with of spare pipe (44), one side fixedly connected with third blast pipe (46) of reserve purifying box (45).
6. An explosion-proof safety device for tail gas in a urea production system according to claim 4, characterized in that: high pressure positive blower (3) and circulating refrigeration device (15) are through circuit and external power electric connection, atmospheric pressure inductor (40) are through circuit and external controller electric connection, pneumatic cylinder (30) are connected through pipeline and hydraulic pressure station, sealed piston plate (27) adopt carbide material to make, locating lever (28) and fixed the sealing washer that is provided with in flue gas case (14) junction.
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| CN202011476807.4A CN112610890B (en) | 2020-12-15 | 2020-12-15 | Explosion-proof safety protection device for tail gas in urea production system |
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| CN202011476807.4A CN112610890B (en) | 2020-12-15 | 2020-12-15 | Explosion-proof safety protection device for tail gas in urea production system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341326A (en) * | 2021-08-04 | 2021-09-03 | 河南工学院 | Protective device for lithium ion battery detection |
| CN113617204A (en) * | 2021-09-01 | 2021-11-09 | 东营益美得化工有限公司 | Methyl isobutyl ketone tail gas absorber |
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| CN113341326B (en) * | 2021-08-04 | 2021-10-08 | 河南工学院 | Protective device for lithium ion battery detection |
| CN113617204A (en) * | 2021-09-01 | 2021-11-09 | 东营益美得化工有限公司 | Methyl isobutyl ketone tail gas absorber |
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|---|---|
| CN112610890B (en) | 2022-09-27 |
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