Recycling device for decarburization flash steam of synthetic ammonia

Abstract

The utility model belongs to the technical field of synthesis ammonia production, and particularly relates to a synthesis ammonia decarburization flash steam recovery device which comprises a recovery machine body, a discharge pipe fixedly connected to the surface of the recovery machine body, a connecting pipe in threaded connection with the surface of the discharge pipe, a fixing pipe in threaded connection with the surface of the connecting pipe, and a waste gas barrel transversely connected to the surface of the fixing pipe in a penetrating mode. The surface of the inner wall of the waste gas barrel is fixedly connected with a limiting block, the surface of the limiting block is connected with an activated carbon plate in a clamped mode, the surface of the clamping block is connected with a molecular sieve plate in a clamped mode, and one side of the top surface of the waste gas barrel is transversely connected with a rotating shaft in a penetrating mode; according to the utility model, through the activated carbon plate and the molecular sieve plate which are connected in the waste gas barrel at one side of the discharge pipe, discharged gas is filtered, so that pollutants carried by the gas are adsorbed and removed, and the pollutants are prevented from being directly discharged into the air to pollute the environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of synthetic ammonia production, and in particular relates to a synthetic ammonia decarbonization flash steam recovery device. Background Art

[0002] Synthetic ammonia refers to ammonia directly synthesized from nitrogen and hydrogen under high temperature, high pressure and in the presence of a catalyst. It is a basic inorganic chemical process. Therefore, a large amount of condensate will be discharged in the production of synthetic ammonia. After the condensate is discharged from the production equipment, a large amount of flash gas will be generated due to the pressure difference between the inside and outside of the equipment. Flash gas is the steam formed by the re-evaporation of hot condensed water due to the pressure difference. Since flash gas is often directly discharged into the atmosphere, this part of energy is wasted. Therefore, in order to avoid energy waste, it is necessary to use corresponding recovery devices to recycle flash gas, so as to improve factory efficiency and reduce energy loss. The application number is "CN The "synthetic ammonia decarbonization flash vapor recovery device" disclosed in "201120023210.4" is also an increasingly mature technology. In the synthetic ammonia production process, the synthetic ammonia decarbonization flash vapor recovery device is used to achieve effective utilization of the decarbonization flash vapor through efficient flash evaporation, separation and recovery processes. However, the device still has the following defects: However, when the above-mentioned equipment is in use, the existing synthetic ammonia decarbonization flash vapor recovery device needs to discharge waste gas when in use. The discharged waste gas carries unreacted gas and inert gas, which will pollute the environment. In addition, after the existing gas is discharged, the air quality in the environment can only be tested regularly to monitor whether the gas emission meets the standard. The operation is cumbersome and problems cannot be discovered in time. Utility Model Content

[0003] The utility model aims to provide a flash vapor recovery device for decarbonizing ammonia, aiming to solve the problem that the above-mentioned equipment in the prior art needs to discharge waste gas when in use, and the discharged waste gas carries unreacted gas and inert gas, which will pollute the environment, and the existing gas can only be regularly tested for air quality in the environment after discharge to monitor whether the gas emission meets the standard, the operation is cumbersome and problems cannot be discovered in time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synthetic ammonia decarbonization flash gas recovery device, comprising: a recovery machine body, the surface of the recovery machine body is fixedly connected to a discharge pipe, the surface of the discharge pipe is threadedly connected to a connecting pipe, the surface of the connecting pipe is threadedly connected to a fixed pipe, the surface of the fixed pipe is transversely penetrated and connected to a waste gas barrel, the inner wall surface of the waste gas barrel is fixedly connected to a limit block, the surface of the limit block is snap-fitted and connected to an activated carbon plate, the inner wall surface of the waste gas barrel is fixedly connected to a clamping block, the surface of the clamping block is snap-fitted and connected to a molecular sieve plate, one side of the top surface of the waste gas barrel is transversely penetrated and connected to a rotating shaft, the surface of the rotating shaft is transversely penetrated and connected to a top cover, the top surface of the top cover is connected to a buckle, and the surface of the buckle is snap-fitted and connected to the top surface of the waste gas barrel.

[0005] In order to facilitate the use of limit blocks to fix the position of the activated carbon plate, as a preferred synthetic ammonia decarbonization flash gas recovery device of the utility model, the waste gas barrel, the limit block and the activated carbon plate form a snap-fit ​​connection structure, the inner wall of the limit block is provided with a rectangular groove whose shape and size are consistent with the protrusions on the surface of the activated carbon plate, and the waste gas barrel, the block and the molecular sieve plate form a snap-fit ​​connection structure.

[0006] In order to facilitate opening of the top cover fixed by the buckle by utilizing the rotating shaft, as a preferred embodiment of a synthetic ammonia decarbonization flash vapor recovery device of the utility model, the waste gas barrel, the rotating shaft and the top cover form a rotating connection structure, the waste gas barrel, the top cover and the buckle form a snap connection structure, and the top surface of the waste gas barrel is provided with a groove whose shape and size match the buckle.

[0007] In order to monitor and alarm the exhausted gas by means of a gas monitoring alarm fixed on the surface of the fuselage, as a preferred synthetic ammonia decarbonization flash gas recovery device of the utility model, the top surface of the top cover is longitudinally penetrated by an exhaust pipe, the inner wall surface of the exhaust pipe is fixedly connected to a supporting block, the surface of the supporting block abuts against a probe, the top surface of the probe is connected to a gas monitoring alarm, the surface of the gas monitoring alarm is snap-connected to a limit box, and the surface of the limit box is connected to the recovery machine body.

[0008] In order to utilize the support block to fix the position of the probe, as a preferred embodiment of the utility model of a synthetic ammonia decarbonization flash vapor recovery device, the exhaust pipe, the support block and the probe form an abutment connection structure, and two support blocks are relatively arranged on the inner wall surface of the exhaust pipe and the spacing distance is consistent with that of the probe.

[0009] In order to facilitate the fixing of the gas monitoring alarm by using a limit box, as a preferred embodiment of a synthetic ammonia decarbonization flash vapor recovery device of the utility model, the recovery machine body, the gas monitoring alarm and the limit box form a snap-fit ​​connection structure, and the inner wall surface of the limit box has a slot whose shape and size match the gas monitoring alarm.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The activated carbon plate and molecular sieve plate in the waste gas barrel connected to one side of the discharge pipe are used to filter the discharged gas so that the pollutants it carries are adsorbed and removed, thus avoiding direct discharge into the air and polluting the environment.

[0012] The exhaust gas is monitored by a probe abutting against the exhaust pipe and an alarm is sounded through the connected gas monitoring alarm, so that the excessive pollutants in the exhaust gas can be discovered at the first time so as to facilitate the replacement of the filtering and adsorption media. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0017] Figure 4 For the utility model Figure 2 The enlarged cross-sectional structure diagram of part A in the middle;

[0018] Figure 5 It is a partially enlarged structural schematic diagram of the limit box of the utility model.

[0019] In the figure: 1. Recovery machine body; 2. Discharge pipe; 3. Connecting pipe; 4. Fixed pipe; 5. Waste gas barrel; 6. Limit block; 7. Activated carbon plate; 8. Block; 9. Molecular sieve plate; 10. Rotating shaft; 11. Top cover; 12. Buckle; 13. Exhaust pipe; 14. Support block; 15. Probe; 16. Gas monitoring alarm; 17. Limit box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5The utility model provides the following technical solutions: a synthetic ammonia decarbonization flash gas recovery device, comprising: a recovery machine body 1, the surface of the recovery machine body 1 is fixedly connected to the discharge pipe 2, the surface of the discharge pipe 2 is threadedly connected to the connecting pipe 3, the surface of the connecting pipe 3 is threadedly connected to the fixed pipe 4, the surface of the fixed pipe 4 is transversely penetrated and connected to the waste gas barrel 5, the inner wall surface of the waste gas barrel 5 is fixedly connected to the limit block 6, the surface of the limit block 6 is snap-connected to the activated carbon plate 7, the inner wall surface of the waste gas barrel 5 is fixedly connected to the clamping block 8, the surface of the clamping block 8 is snap-connected to the molecular sieve plate 9, one side of the top surface of the waste gas barrel 5 is transversely penetrated and connected to the rotating shaft 10, the surface of the rotating shaft 10 is transversely penetrated and connected to the top cover 11, the top surface of the top cover 11 is connected to the buckle 12, and the surface of the buckle 12 is snap-connected to the top surface of the waste gas barrel 5.

[0022] Preferably: the waste gas barrel 5, the limit block 6 and the activated carbon plate 7 form a snap-fit ​​connection structure, the inner wall of the limit block 6 is provided with a rectangular groove whose shape and size are consistent with the protrusions on the surface of the activated carbon plate 7, and the waste gas barrel 5, the block 8 and the molecular sieve plate 9 form a snap-fit ​​connection structure.

[0023] During specific use, pull the handle above the activated carbon plate 7 and lift it upward to separate the fixed limit block 6 to replace the activated carbon plate 7. At the same time, pull the handle on the molecular sieve plate 9 to take out the molecular sieve plate 9 fixed on the block 8 to replace it.

[0024] Preferably: the waste gas barrel 5, the rotating shaft 10 and the top cover 11 form a rotating connection structure, the waste gas barrel 5, the top cover 11 and the buckle 12 form a snap connection structure, and the top surface of the waste gas barrel 5 is provided with a groove whose shape and size match the buckle 12.

[0025] When in use, pull the handle on the top of the top cover 11 and use the connected rotating shaft 10 to rotate on the top of the waste gas barrel 5. At the same time, the buckle 12 connected to the bottom of the top cover 11 is separated from the waste gas barrel 5 that is snap-connected.

[0026] Preferably: the top surface of the top cover 11 is longitudinally penetrated and connected to the exhaust pipe 13, the inner wall surface of the exhaust pipe 13 is fixedly connected to the supporting block 14, the surface of the supporting block 14 abuts the probe 15, the top surface of the probe 15 is connected to the gas monitoring alarm 16, the surface of the gas monitoring alarm 16 is snap-connected to the limit box 17, and the surface of the limit box 17 is connected to the recycling machine body 1.

[0027] During specific use, the adsorbed exhaust gas is discharged into the environment through the connected exhaust pipe 13. At the same time, the probe 15 abutting against the supporting block 14 on the inner wall of the exhaust pipe 13 monitors the pollutant content in the exhausted exhaust gas. When the content exceeds the standard, an alarm is sounded through the connected gas monitoring alarm 16.

[0028] Preferably, the exhaust pipe 13 , the supporting block 14 and the probe 15 form an abutting connection structure, and two supporting blocks 14 are arranged opposite to each other on the inner wall surface of the exhaust pipe 13 and the spacing distance is consistent with that of the probe 15 .

[0029] During specific use, two supporting blocks 14 provided on the inner wall of the exhaust pipe 13 are used to conveniently fix the position of the probe 15 therein, and also to facilitate taking out the probe 15 for inspection and cleaning.

[0030] Preferably, the recycling machine body 1 , the gas monitoring alarm 16 and the limit box 17 form a snap-fit ​​connection structure, and the inner wall surface of the limit box 17 is provided with a slot whose shape and size are consistent with the gas monitoring alarm 16 .

[0031] During specific use, it is convenient to take out the limit box 17 fixed in the gas monitoring alarm 16 for inspection and maintenance.

[0032] Working principle: In the process of synthetic ammonia production, the gas is processed by using the synthetic ammonia decarbonization flash gas recovery device. The waste gas generated after the processing is discharged through the discharge pipe 2, and the waste gas enters the waste gas barrel 5 through the connected connecting pipe 3 and the fixed pipe 4. The activated carbon plate 7 and the molecular sieve plate 9 fixed in the waste gas barrel 5 adsorb and filter the pollutants carried in the waste gas, and then the adsorbed waste gas is discharged into the environment through the connected exhaust pipe 13. At the same time, the probe 15 abutting on the supporting block 14 on the inner wall of the exhaust pipe 13 monitors the pollutant content in the discharged waste gas. When the content exceeds the standard, the connected gas monitoring alarm 1 is used. 6 gives an alarm, prompting the staff to replace the activated carbon plate 7 and the molecular sieve plate 9 in the waste gas barrel 5. When replacing, pull the handle on the top of the top cover 11 and use the connected rotating shaft 10 to rotate on the top of the waste gas barrel 5. At the same time, the buckle 12 connected to the bottom of the top cover 11 is separated from the waste gas barrel 5 connected thereto, so as to open the top cover 11 to replace the molecular sieve plate 9 engaged on the block 8 and the activated carbon plate 7 on the limit block 6 inside it. Regularly take out the gas monitoring alarm 16 engaged and fixed on the surface of the limit box 17 for maintenance to avoid its damage affecting the monitoring work. This is the characteristic of a synthetic ammonia decarbonization flash gas recovery device.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A synthetic ammonia decarbonization flash steam recovery device, comprising: A recycling machine body (1) is characterized in that: the surface of the recycling machine body (1) is fixedly connected to a discharge pipe (2), the surface of the discharge pipe (2) is threadedly connected to a connecting pipe (3), the surface of the connecting pipe (3) is threadedly connected to a fixed pipe (4), the surface of the fixed pipe (4) is transversely penetrated and connected to a waste gas barrel (5), the inner wall surface of the waste gas barrel (5) is fixedly connected to a limit block (6), the surface of the limit block (6) is snap-fitted and connected to an activated carbon plate (7), the inner wall surface of the waste gas barrel (5) is fixedly connected to a clamping block (8), the surface of the clamping block (8) is snap-fitted and connected to a molecular sieve plate (9), one side of the top surface of the waste gas barrel (5) is transversely penetrated and connected to a rotating shaft (10), the surface of the rotating shaft (10) is transversely penetrated and connected to a top cover (11), the top surface of the top cover (11) is connected to a buckle (12), and the surface of the buckle (12) is snap-fitted and connected to the top surface of the waste gas barrel (5).

2. A synthetic ammonia decarbonization flash vapor recovery device according to claim 1, characterized in that: The waste gas barrel (5), the stopper (6) and the activated carbon plate (7) form a snap-fit ​​connection structure; the inner wall of the stopper (6) is provided with a rectangular groove whose shape and size are consistent with the protrusions on the surface of the activated carbon plate (7); and the waste gas barrel (5), the stopper (8) and the molecular sieve plate (9) form a snap-fit ​​connection structure.

3. A synthetic ammonia decarbonization flash vapor recovery device according to claim 1, characterized in that: The waste gas barrel (5), the rotating shaft (10) and the top cover (11) form a rotating connection structure, and the waste gas barrel (5), the top cover (11) and the buckle (12) form a snap connection structure. The shape and size of the groove formed on the top surface of the waste gas barrel (5) are consistent with those of the buckle (12).

4. A synthetic ammonia decarbonization flash vapor recovery device according to claim 1, characterized in that: The top surface of the top cover (11) is longitudinally penetrated and connected to the exhaust pipe (13); the inner wall surface of the exhaust pipe (13) is fixedly connected to the support block (14); the surface of the support block (14) abuts against the probe (15); the top surface of the probe (15) is connected to the gas monitoring alarm (16); the surface of the gas monitoring alarm (16) is snap-fitted and connected to the limit box (17); and the surface of the limit box (17) is connected to the recycling machine body (1).

5. A synthetic ammonia decarbonization flash vapor recovery device according to claim 4, characterized in that: The exhaust pipe (13), the supporting block (14) and the probe (15) form an abutting connection structure; two supporting blocks (14) are arranged opposite to each other on the inner wall surface of the exhaust pipe (13) and the spacing distance thereof matches that of the probe (15).

6. A synthetic ammonia decarbonization flash vapor recovery device according to claim 4, characterized in that: The recycling machine body (1), the gas monitoring alarm (16) and the limit box (17) form a snap-fit ​​connection structure; the inner wall surface of the limit box (17) is provided with a slot whose shape and size are consistent with those of the gas monitoring alarm (16).

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