CN212468042U

CN212468042U - Synthetic ammonia bypass adjusting device

Info

Publication number: CN212468042U
Application number: CN202020699062.7U
Authority: CN
Inventors: 王启明; 杨波; 李微; 张明; 李强; 桑健; 胡萌
Original assignee: Shanxi Lubao Xinghai New Material Co ltd
Current assignee: Shanxi Lubao Xinghai New Material Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-05
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a synthetic ammonia bypass adjusting device relates to synthetic ammonia technical field, including the retort, the side fixedly connected with air conditioning air supply pipe of retort, a side lower part fixedly connected with atmospheric pressure test tube of retort. The utility model discloses a set up the air conditioning air supply pipe, can let in the cooling chamber with outside air conditioning, can carry out rapid cooling to the retort when the inside high temperature of retort, can also be according to thermodetector control air valve adjustment admission time, the trouble of having avoided manual control to bring, the automatic purpose of cooling down to the retort has been reached, through setting up the atmospheric pressure detection pipe, can utilize inside and outside atmospheric pressure difference change removal sealing gasket of retort to detect the inside position of pipe at the atmospheric pressure, make the electric current change through resistance pole and electrically conductive clamp, thereby control three-way solenoid valve aerifys and exhausts the retort, reach the purpose of adjusting the inside pressure of retort.

Description

Synthetic ammonia bypass adjusting device

Technical Field

The utility model relates to the technical field of synthetic ammonia, in particular to a synthetic ammonia bypass adjusting device.

Background

Ammonia is one of important inorganic chemical products and plays an important role in national economy, wherein about 80 percent of ammonia is used for producing chemical fertilizers, and 20 percent of ammonia is used as a raw material of other chemical products. Ammonia is mainly used for manufacturing nitrogen fertilizers and compound fertilizers, such as urea, ammonium nitrate, ammonium phosphate, ammonium chloride and various nitrogen-containing compound fertilizers, and is prepared by taking ammonia as a raw material, wherein synthetic ammonia refers to ammonia directly synthesized from nitrogen and hydrogen at high temperature and high pressure in the presence of a catalyst, and is a basic inorganic chemical process. Thermodynamic calculations show that low temperature, high pressure are favorable for the synthesis of ammonia reaction, but without a catalyst, the activation energy of the reaction is very high and the reaction hardly occurs. When an iron catalyst is used, the activation energy of the reaction is lowered due to the change of the reaction history, so that the reaction proceeds at a significant rate. The mechanism of the ammonia synthesis reaction is that firstly, nitrogen molecules are chemically adsorbed on the surface of an iron catalyst, so that chemical bonds among nitrogen atoms are weakened. Then the chemical adsorbed hydrogen atoms continuously react with the nitrogen molecules on the surface to gradually generate ammonia molecules on the surface of the catalyst, and finally the ammonia molecules are desorbed on the surface to generate gaseous ammonia. The synthesis ammonia process is very complicated in actual operation, and because the hydrogen and the nitrogen are greatly influenced by temperature and pressure in the reaction process, the stability of the catalyst is ensured in the reaction of the hydrogen and the nitrogen, the heat inside the reaction tank body can be changed due to the reaction of the hydrogen and the nitrogen, the molar quantity of the gas inside the tank body can be changed when the ammonia is generated, and therefore the gas pressure and the temperature inside the reaction tank body are continuously regulated, so that the maximum rate of the chemical reaction can be ensured.

At present, current synthetic ammonia retort need pass through manual control internal pressure and temperature, let in gas to jar internal portion by the manual operation pneumatic valve in hydrogen and nitrogen gas constantly react, thereby guarantee that jar internal portion can not cause temperature and atmospheric pressure to change because the chemical is turned over to economize, this kind of mode troublesome poeration through manual control needs the continuous regulation of staff, and it is great to adjust the scope that temperature and pressure control can be made through manual regulation temperature and pressure, can not make numerical value stop less scope around the peak value.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a synthetic ammonia bypass adjusting device, which solves the problems provided in the background technology.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including draw together the retort, the lateral wall of retort includes outer wall and inner wall, be equipped with the cooling chamber between outer wall and the inner wall, the side fixedly connected with air conditioning air supply pipe of retort, the middle part fixedly connected with pneumatic valve of air conditioning air supply pipe, the side middle part fixedly connected with pressure regulating trachea of retort, the tracheal one end of pressure regulating is linked together with the retort inner chamber, the tracheal other end fixedly connected with three way solenoid valve of pressure regulating, a side lower part fixedly connected with atmospheric pressure detection pipe of retort, the inside seal of atmospheric pressure detection pipe is provided with the removal and seals up, the one end fixedly connected with resistance lever that the removal was sealed fills up, the tracheal diapire fixedly connected with of pressure regulating electrically conducts the clamp.

Optionally, the side fixedly connected with air conditioning recovery tube of retort, air conditioning recovery tube and air conditioning gas supply pipe all communicate with the cooling chamber.

Optionally, the inner wall of the reaction tank is fixedly connected with a temperature detector, and the temperature detector is electrically connected with the gas valve through a lead.

Optionally, the pressure regulating trachea runs through the lateral wall of retort, tracheal other end fixedly connected with three way solenoid valve of pressure regulating, three way solenoid valve's T mouth fixedly connected with blast pipe, three way solenoid valve's P mouth fixedly connected with gas tube, three way solenoid valve passes through the wire and is connected with the electrically conductive clamp electricity with resistance pole.

Optionally, the through-hole with resistance bar looks adaptation is seted up to the diapire of atmospheric pressure detection pipe, a side fixedly connected with spring of sealed pad of removal, the one end of spring and the diapire fixed connection of atmospheric pressure detection pipe.

Optionally, the top fixedly connected with inlet pipe of retort, the side lower part fixedly connected with discharging pipe of retort, the bottom fixedly connected with foot support of retort, the foot support has a plurality of, a plurality of the foot support is the annular array and distributes in the bottom of blast pipe.

Three beneficial effects

The utility model provides a synthetic ammonia bypass adjusting device possesses following beneficial effect:

1. this synthetic ammonia bypass adjusting device through setting up the air conditioning air supply pipe, can let in the cooling chamber with the air conditioning of outside, can carry out rapid cooling to the retort when the inside high temperature of retort, can also adjust the time of admitting air according to thermodetector control air valve, has avoided the trouble that manual control brought, has reached the automatic mesh of cooling down to the retort.

2. This synthetic ammonia bypass adjusting device through setting up the atmospheric pressure test tube, can utilize inside and outside atmospheric pressure difference change of retort to remove sealed the inside position of filling up at the atmospheric pressure test tube, makes the electric current through resistance pole and electrically conductive clamp change to control three-way solenoid valve aerifys and exhausts the retort, reaches the purpose of adjusting retort internal pressure.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the cross-sectional structure of the air pressure detecting tube of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the air pressure detecting tube of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the air pressure detecting tube of the present invention.

In the figure: 1. a feed pipe; 2. a reaction tank; 3. an exhaust pipe; 4. an inflation tube; 5. a three-way electromagnetic valve; 6. a pressure regulating air pipe; 7. an air pressure detecting tube; 8. a foot support; 9. a discharge pipe; 10. a cold air recovery pipe; 11. a cold air supply pipe; 12. an air valve; 13. a temperature detector; 14. an outer wall; 15. a cooling chamber; 16. an inner wall; 17. moving the gasket; 18. a spring; 19. a resistance rod; 20. a conductive clip; 21. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 6, the present invention provides a technical solution: a synthetic ammonia bypass adjusting device comprises a reaction tank 2, the top of the reaction tank 2 is fixedly connected with a feeding pipe 1, the lower part of the side surface of the reaction tank 2 is fixedly connected with a discharging pipe 9, the bottom of the reaction tank 2 is fixedly connected with a foot support 8, the foot supports 8 are provided with a plurality of numbers, the foot supports 8 are distributed at the bottom of the discharging pipe 3 in an annular array manner, the side wall of the reaction tank 2 comprises an outer wall 14 and an inner wall 16, a cooling cavity 15 is arranged between the outer wall 14 and the inner wall 16, the side surface of the reaction tank 2 is fixedly connected with a cold air supply pipe 11, the side surface of the reaction tank 2 is fixedly connected with a cold air recovery pipe 10, the cold air recovery pipe 10 and the cold air supply pipe 11 are both communicated with the cooling cavity 15, the middle part of the cold air supply pipe 11 is fixedly connected with an air valve 12, the inner wall of the reaction tank 2 is fixedly connected with a, one end of the pressure regulating air pipe 6 is communicated with the inner cavity of the reaction tank 2, the other end of the pressure regulating air pipe 6 is fixedly connected with a three-way electromagnetic valve 5, the lower part of one side surface of the reaction tank 2 is fixedly connected with an air pressure detecting pipe 7, the inner part of the air pressure detecting pipe 7 is hermetically provided with a movable sealing gasket 17, one end of the movable sealing gasket 17 is fixedly connected with a resistance rod 19, the bottom wall of the air pressure detecting pipe 7 is provided with a through hole 21 matched with the resistance rod 19, one side surface of the movable sealing gasket 17 is fixedly connected with a spring 18, one end of the spring 18 is fixedly connected with the bottom wall of the air pressure detecting pipe 7, the bottom wall of the pressure regulating air pipe 6 is fixedly connected with a conductive clamp 20, the pressure regulating air pipe 6 penetrates through the side wall of the reaction tank 2, the other end of the, the three-way electromagnetic valve 5 is electrically connected with the resistance rod 19 and the conductive clip 20 through leads.

When the device is used, firstly, a gas mixture to be reacted enters the reaction tank 2 from the feeding pipe 1, then hydrogen and nitrogen in the reaction tank 2 react, the mole number of the gas in the reaction tank 2 is reduced while heat is released, the pressure in the reaction tank 2 is reduced, when the temperature in the reaction tank 2 rises, the temperature detector 13 controls the air valve 12 to be opened, cold air in the cold air supply pipe 11 enters the cooling cavity 15, meanwhile, the air in the cooling cavity 15 is discharged from the cold air recovery pipe 10, the air in the cooling cavity 15 is cooled, the inner wall of the reaction tank 2 is cooled, so that the purpose of cooling the reaction gas in the reaction tank 2 is achieved, when the gas pressure in the reaction tank 2 changes, because the external atmospheric pressure cannot change, the two sides of the movable sealing gasket 17 in the air pressure detection pipe 7 have a gas pressure difference, the movable sealing gasket 17 is moved in the air pressure detection tube 7, the length of the spring 18 is changed in the air pressure detection tube 7, the resistance rod 19 is also moved on the conductive clamp 20 due to the displacement of the movable sealing gasket 17 in the air pressure detection tube 7, and the resistance in the circuit is changed, so that the three-way electromagnetic valve 5 is controlled to connect the pressure regulating air tube 6 with the exhaust tube 3 or the inflation tube 4, the gas to be reacted which is connected with the inflation tube 4 enters the reaction tank 2, or the gas in the reaction tank 2 is recovered through the exhaust tube 3, the purpose of regulating the pressure in the reaction tank 2 is achieved, and the temperature and the pressure in the reaction tank 2 are stabilized near the reaction peak value.

In conclusion, this device is through setting up air conditioning air supply pipe 11, can let in the cooling chamber 15 with the outside air conditioning, can carry out rapid cooling to retort 2 when retort 2 inside high temperature, can also adjust the time of admitting air according to thermodetector 13 control air valve 12, the trouble that manual control brought has been avoided, the automatic mesh of cooling to retort 2 has been reached, through setting up atmospheric pressure detection pipe 7, can utilize retort 2 inside and outside atmospheric pressure difference change removal sealing gasket 17 in the inside position of atmospheric pressure detection pipe 7, make the electric current change through resistance pole 19 and conductive clamp 20, thereby control three-way solenoid valve 5 aerifys and exhausts retort 2, reach the mesh of adjusting retort 2 internal pressure.

The above, 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. A synthesis ammonia bypass adjusting device comprises a reaction tank (2), and is characterized in that: the side wall of the reaction tank (2) comprises an outer wall (14) and an inner wall (16), a cooling cavity (15) is arranged between the outer wall (14) and the inner wall (16), a cold air supply pipe (11) is fixedly connected with the side surface of the reaction tank (2), an air valve (12) is fixedly connected with the middle part of the cold air supply pipe (11), a pressure regulating air pipe (6) is fixedly connected with the middle part of the side surface of the reaction tank (2), one end of the pressure regulating air pipe (6) is communicated with the inner cavity of the reaction tank (2), the other end of the pressure regulating air pipe (6) is fixedly connected with a three-way electromagnetic valve (5), the lower part of one side surface of the reaction tank (2) is fixedly connected with an air pressure detection tube (7), the inner part of the air pressure detecting tube (7) is hermetically provided with a movable sealing gasket (17), one end of the movable sealing gasket (17) is fixedly connected with a resistance rod (19), the bottom wall of the pressure regulating air pipe (6) is fixedly connected with a conductive clamp (20).

2. The ammonia synthesis bypass regulating device according to claim 1, wherein: the side fixedly connected with air conditioning recovery tube (10) of retort (2), air conditioning recovery tube (10) and air conditioning gas supply pipe (11) all communicate with cooling chamber (15).

3. The ammonia synthesis bypass regulating device according to claim 1, wherein: the inner wall of the reaction tank (2) is fixedly connected with a temperature detector (13), and the temperature detector (13) is electrically connected with the air valve (12) through a lead.

4. The ammonia synthesis bypass regulating device according to claim 1, wherein: the lateral wall of retort (2) is run through in pressure regulating trachea (6), T mouth fixedly connected with blast pipe (3) of three way solenoid valve (5), P mouth fixedly connected with gas tube (4) of three way solenoid valve (5), three way solenoid valve (5) are connected through wire and resistance pole (19) and electrically conductive clamp (20) electricity.

5. The ammonia synthesis bypass regulating device according to claim 1, wherein: the bottom wall of the air pressure detection tube (7) is provided with a through hole (21) matched with the resistance rod (19), one side face of the movable sealing gasket (17) is fixedly connected with a spring (18), and one end of the spring (18) is fixedly connected with the bottom wall of the air pressure detection tube (7).

6. The ammonia synthesis bypass regulating device according to claim 1, wherein: the top fixedly connected with inlet pipe (1) of retort (2), the side lower part fixedly connected with discharging pipe (9) of retort (2), the bottom fixedly connected with foot support (8) of retort (2), foot support (8) have a plurality of, a plurality of foot support (8) are the annular array and distribute in the bottom of blast pipe (3).