CN219730851U - Natural gas desulfurization device - Google Patents
Natural gas desulfurization device Download PDFInfo
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- CN219730851U CN219730851U CN202320500573.5U CN202320500573U CN219730851U CN 219730851 U CN219730851 U CN 219730851U CN 202320500573 U CN202320500573 U CN 202320500573U CN 219730851 U CN219730851 U CN 219730851U
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- Prior art keywords
- natural gas
- gas desulfurization
- air
- communicated
- pipe
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 258
- 239000003345 natural gas Substances 0.000 title claims abstract description 132
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 90
- 230000023556 desulfurization Effects 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 230000003009 desulfurizing effect Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of desulfurization equipment, and discloses a natural gas desulfurization device, which comprises two natural gas desulfurization towers, wherein the lower parts of the two natural gas desulfurization towers are communicated with branch air inlet pipes, the air inlet ends of the two branch air inlet pipes are communicated with a main air inlet pipe, the upper ends of the two natural gas desulfurization towers are communicated with a discharge air pipe, the air outlet ends of the two discharge air pipes are communicated with a main air outlet pipe, the two branch air outlet pipes are communicated with branch air exhaust pipes, the air outlet ends of the branch air exhaust pipes are communicated with a main air exhaust pipe, the air inlet side of the main air exhaust pipe is provided with a natural gas air pump, the upper, middle and lower positions of the two natural gas desulfurization towers are provided with natural gas concentration sensors through flange connecting seats, the natural gas concentration sensors are electrically connected with a PLC (programmable logic controller), the PLC is electrically connected with a data display, the structure can be used for detecting the air discharge condition of the natural gas desulfurization towers, and accordingly, the thorough air discharge of the natural gas desulfurization towers is ensured, and the later maintenance safety is ensured.
Description
Technical Field
The utility model belongs to the technical field of desulfurization equipment, and particularly relates to a natural gas desulfurization device.
Background
Natural gas is clean, efficient and economical energy and chemical raw materials, is the best alternative energy for petroleum and coal, and is increasingly valued for development and utilization along with the development of the natural gas industry. Sulfur-containing natural gas can cause corrosion to equipment and pipelines in the process of gathering, transportation and transportation, personal safety accidents can be caused once leakage occurs, sulfide in the natural gas is converted into sulfur oxide to be discharged into the atmosphere when the natural gas is used as fuel for combustion, acid rain is formed, the atmosphere is polluted, and the ecological environment is destroyed, so that desulfurization is necessary in the process of gathering, transportation and transportation. In the prior natural gas desulfurization, a desulfurizing tower is generally adopted for spray desulfurization, and alkali spray liquid is mainly adopted for desulfurization.
In the existing desulfurization equipment, in the application structure in the publication number CN 209816051U, a plurality of desulfurization towers are adopted to be connected with a desulfurization system in parallel, then when the desulfurization towers are required to be maintained, the connection between the desulfurization towers and the desulfurization system is required to be cut off, and then natural gas in the desulfurization towers is required to be emptied, so that the desulfurization can be maintained, the maintenance can be realized one by one without stopping the line in sequence, but in the structure disclosed in the application, when the natural gas is emptied, a safety detection device is absent, an operator cannot determine the specific condition of natural gas emptying, the natural gas is easy to enter the desulfurization towers for maintenance without emptying, and thus safety accidents are easy to occur.
Disclosure of Invention
The utility model aims at: in order to solve the above-mentioned problems, a natural gas desulfurization apparatus is provided.
The technical scheme adopted by the utility model is as follows: the natural gas desulfurization device comprises two natural gas desulfurization towers, wherein the lower parts of the two natural gas desulfurization towers are communicated with branch air inlet pipes, the air inlet ends of the two branch air inlet pipes are communicated with a main air inlet pipe, the upper ends of the two natural gas desulfurization towers are communicated with a expenditure air pipe, and the air outlet ends of the two expenditure air pipes are communicated with a main air outlet pipe;
the two branch exhaust pipes are communicated with each other, the air outlet end of each branch exhaust pipe is communicated with a main exhaust pipe, the air outlet end of each main exhaust pipe is communicated with the main air outlet pipe, and the air inlet side of each main exhaust pipe is provided with a natural gas exhaust pump;
the upper, middle and lower positions of the two natural gas desulfurization towers are welded with flange connecting seats, natural gas concentration sensors are hermetically arranged on the flange connecting seats, the natural gas concentration sensors are electrically connected with a PLC (programmable logic controller), and the PLC is electrically connected with a data display.
In a preferred embodiment, a spray pipe is arranged in the middle of the natural gas desulfurization tower and is communicated with an external liquid supply mechanism, a gas distribution plate is arranged at the lower part of the natural gas desulfurization tower, and a water removal mechanism is arranged at the upper part of the natural gas desulfurization tower.
In a preferred embodiment, the water removal mechanism comprises a mist eliminator and an activated carbon adsorption tank.
In a preferred embodiment, a valve one is arranged on both of the branch air inlet pipes.
In a preferred embodiment, a valve two is arranged on both of the outlet air pipes.
In a preferred embodiment, the valve three is arranged on both branch exhaust pipes.
In a preferred embodiment, the outlet side of the main exhaust pipe is provided with a one-way valve.
In a preferred embodiment, a pressure relief valve is provided on the outlet air line.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: according to the utility model, the natural gas concentration of the natural gas desulfurization towers is detected by utilizing the natural gas, the PLC can analyze and process the data in the natural gas concentration sensor, and then the data are transmitted to the data display, so that personnel can conveniently control the natural gas concentration in the natural gas desulfurization towers in real time, whether the inside of the natural gas desulfurization towers is empty or not is conveniently determined, the natural gas in the natural gas desulfurization towers is thoroughly emptied to the standard that the personnel can open the natural gas desulfurization towers for maintenance, the personnel can maintain the natural gas desulfurization towers more safely, and the natural gas concentration sensors are arranged at the upper, middle and lower positions of the natural gas desulfurization towers in the structure, so that the natural gas concentration of each position of the natural gas desulfurization towers is ensured, the detection is more three-dimensional, and the detection accuracy is ensured.
Drawings
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic and schematic illustration of the internal structure of the natural gas desulfurization tower according to the present utility model.
The marks in the figure: 1-natural gas desulfurizing tower, 2-main intake pipe, 3-air outlet pipe, 4-main outlet pipe, 5-branch exhaust pipe, 6-main exhaust pipe, 7-natural gas exhaust pump, 8-flange connecting seat, 9-natural gas concentration sensor, 10-PLC controller, 11-data display, 12-shower, 13-gas distribution plate, 14-dewatering mechanism, 15-defroster, 16-activated carbon adsorption tank, 17-valve I, 18-valve II, 19-valve III, 20-check valve, 21-relief valve, 22-intake pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A natural gas desulfurization apparatus according to an embodiment of the present utility model will be described in detail with reference to fig. 1 to 3.
Examples:
the embodiment of the utility model provides a natural gas desulfurization device, which is shown by referring to fig. 1 and 2, and comprises two natural gas desulfurization towers 1, wherein the lower parts of the two natural gas desulfurization towers 1 are communicated with branch air inlet pipes 22, the air inlet ends of the two branch air inlet pipes 22 are communicated with a main air inlet pipe 2, the upper ends of the two natural gas desulfurization towers 1 are communicated with a discharge air pipe 3, the air outlet ends of the two discharge air pipes 3 are communicated with a main air outlet pipe 4, the structure utilizes the main air inlet pipe 2 to split natural gas into the branch air inlet pipes 22 and then enters the desulfurization towers 1 to further desulfurize the natural gas, and the desulfurized natural gas enters the main air outlet pipe 4 through the discharge air pipe 4 and is conveyed to the next process.
The design of the two desulfurizing towers 1 with the structure can be used simultaneously to improve the processing capacity of natural gas, and meanwhile, when any desulfurizing tower 1 is to be maintained, the desulfurizing tower 1 can be closed, and the other desulfurizing tower 1 can continue to work, so that the desulfurizing tower 1 can be maintained without stopping the line, and the production cannot be influenced.
Referring to fig. 3, a spray pipe 12 is arranged in the middle of the natural gas desulfurization tower 1, the spray pipe 12 is communicated with an external liquid supply mechanism, a water removal mechanism 14 is arranged at the upper part of the natural gas desulfurization tower 1, and alkali liquid is sprayed by the spray pipe 12, so that the natural gas desulfurization tower contacts with the natural gas for desulfurization, and sulfide in the natural gas is removed.
Referring to fig. 3, a gas distribution plate 13 is provided at the lower part of the natural gas desulfurization tower 1, and the natural gas is uniformly and upwardly flowed by the gas distribution plate 13, thereby sufficiently contacting the natural gas with the alkali liquor.
Referring to fig. 3, the water removal mechanism 14 includes a mist eliminator 15 and an activated carbon adsorption tank 16, and the mist eliminator 15 of this structure removes mist from natural gas, and then adsorbs remaining moisture by the activated carbon adsorption tank 16, thereby removing moisture from the desulfurized natural gas.
Referring to fig. 1, the first valves 17 are arranged on the two branch air inlet pipes 22, the first valves 17 are used for controlling the opening and closing of the branch air inlet pipes 22, the second valves 18 are arranged on the two branch air pipes 3, the second valves 18 are used for controlling the opening and closing of the branch air inlet pipes 22, and when the first valves 17 on the corresponding branch air inlet pipes 22 and the second valves 18 on the branch air pipes 3 are closed, the natural gas desulfurization tower 1 to be maintained is disconnected from the desulfurization system, and further the maintenance is convenient.
Referring to fig. 1 and 2, two air outlet pipes 3 are respectively connected with an air outlet pipe 5, an air outlet end of each air outlet pipe 5 is connected with a main air outlet pipe 6, an air outlet end of each main air outlet pipe 6 is connected with a main air outlet pipe 4, and a natural gas air pump 7 is arranged on the air inlet side of each main air outlet pipe 6.
Referring to fig. 1, the three valves 19 are arranged on the two branch air extraction pipes 5, and the three valves 19 are used for controlling the opening and closing of the branch air extraction pipes 5.
Referring to fig. 1, flange connecting seats 8 are welded at the upper, middle and lower positions of two natural gas desulfurization towers 1, natural gas concentration sensors 9 are mounted on the flange connecting seats 8 in a sealing manner, the types of the natural gas concentration sensors 9 are ZP14, the natural gas concentration sensors 9 are electrically connected with a PLC controller 10, the PLC controller 10 is electrically connected with a data display 11, the structure detects the concentration of the natural gas at the upper part, the middle part and the lower part of the natural gas desulfurization tower 1 by using the natural gas detection 9, and accordingly, the natural gas in the natural gas desulfurization tower 1 is thoroughly exhausted to the standard that personnel open the natural gas desulfurization tower 1 for maintenance, and the personnel maintain the natural gas desulfurization tower 1 more safely.
The PLC 10 can analyze and process the data in the natural gas concentration sensor 9, and then transmit the data to the data display 11, so that personnel can conveniently control the natural gas concentration in the natural gas desulfurization tower 1 in real time, and whether the inside is empty or not can be conveniently determined.
It should be noted that: the connection circuit and control system between the PLC controller and the natural gas concentration sensor 9 and the data display 11 are all conventional circuits and systems, which are not described too much herein.
Referring to fig. 1, the air outlet side of the main air extraction pipe 6 is provided with a check valve 20, and this structure prevents the natural gas in the main air outlet pipe 4 from flowing back by using the check valve 20.
Referring to fig. 1, a relief valve 21 is provided on a gas outlet pipe, after the natural gas desulfurization tower 1 is emptied, an operator can open the relief valve 21, so that external air enters the natural gas desulfurization tower 1, the internal pressure and the external pressure of the natural gas desulfurization tower 1 are balanced, and the natural gas desulfurization tower 1 is conveniently opened for maintenance by the operator.
The implementation principle of the natural gas desulfurization device of the embodiment of the utility model is as follows: when the natural gas desulfurization tower 1 is required to be maintained, only the valve I17 on the corresponding branch air inlet pipe 22 and the valve II 18 on the outlet air pipe 3 are required to be closed at the moment, so that the natural gas desulfurization tower 1 to be maintained is disconnected from a desulfurization system, then the natural gas suction pump 7 is started to pump out the natural gas in the natural gas desulfurization tower 1 and send the natural gas into the main air outlet pipe 4 for discharging, at the moment, the natural gas concentration of the upper part, the middle part and the lower part of the natural gas desulfurization tower 1 is detected by using the natural gas detection 9, the PLC controller 10 can analyze and process the data in the natural gas concentration sensor 9, and then the data is transmitted to the data display 11, thereby facilitating personnel to control the natural gas concentration in the natural gas desulfurization tower 1 in real time, when the natural gas desulfurization tower 1 to be maintained reaches the standard of the accessible concentration, then the suction of the natural gas desulfurization tower 1 is stopped, then the pressure relief valve 21 is opened by an operator, so that the external air enters the natural gas desulfurization tower 1, and the internal and external balance of the natural gas desulfurization tower 1 is further, and the maintainer can open the natural gas pressure to maintain the natural gas desulfurization tower 1.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (8)
1. A natural gas desulfurization device comprising two natural gas desulfurization towers (1), characterized in that: the lower parts of the two natural gas desulfurization towers (1) are communicated with a branch air inlet pipe (22), the air inlet ends of the two branch air inlet pipes (22) are communicated with a main air inlet pipe (2), the upper ends of the two natural gas desulfurization towers (1) are communicated with a expenditure air pipe (3), and the air outlet ends of the two expenditure air pipes (3) are communicated with a main air outlet pipe (4);
two branch exhaust pipes (5) are communicated with the two branch exhaust pipes (3), the air outlet ends of the branch exhaust pipes (5) are communicated with a main exhaust pipe (6), the air outlet ends of the main exhaust pipe (6) are communicated with the main air outlet pipe (4), and the air inlet side of the main exhaust pipe (6) is provided with a natural gas exhaust pump (7);
the upper, middle and lower positions of the two natural gas desulfurization towers (1) are welded with flange connecting seats (8), natural gas concentration sensors (9) are mounted on the flange connecting seats (8) in a sealing mode, the natural gas concentration sensors (9) are electrically connected with PLC controllers (10), and the PLC controllers (10) are electrically connected with data displays (11).
2. A natural gas desulfurization apparatus as defined in claim 1, wherein: the middle part of natural gas desulfurizing tower (1) is provided with shower (12), shower (12) and outside feed liquid mechanism intercommunication, the lower part of natural gas desulfurizing tower (1) is provided with gas distribution board (13), the upper portion of natural gas desulfurizing tower (1) is provided with dewatering mechanism (14).
3. A natural gas desulfurization apparatus as defined in claim 2, wherein: the water removing mechanism (14) comprises a demister (15) and an activated carbon adsorption box (16).
4. A natural gas desulfurization apparatus as defined in claim 1, wherein: the two air inlet pipes (22) are provided with a valve I (17).
5. A natural gas desulfurization apparatus as defined in claim 1, wherein: and two valves II (18) are arranged on the two expenditure air pipes (3).
6. A natural gas desulfurization apparatus as defined in claim 1, wherein: and the two branch exhaust pipes (5) are provided with a valve III (19).
7. A natural gas desulfurization apparatus as defined in claim 1, wherein: the air outlet side of the main air exhaust pipe (6) is provided with a one-way valve (20).
8. A natural gas desulfurization apparatus as defined in claim 1, wherein: the discharge air pipe is provided with a pressure relief valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500573.5U CN219730851U (en) | 2023-03-15 | 2023-03-15 | Natural gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500573.5U CN219730851U (en) | 2023-03-15 | 2023-03-15 | Natural gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219730851U true CN219730851U (en) | 2023-09-22 |
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ID=88064525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320500573.5U Active CN219730851U (en) | 2023-03-15 | 2023-03-15 | Natural gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219730851U (en) |
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2023
- 2023-03-15 CN CN202320500573.5U patent/CN219730851U/en active Active
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