CN109111959B - Coke oven raw gas ammonia water cooling system - Google Patents
Coke oven raw gas ammonia water cooling system Download PDFInfo
- Publication number
- CN109111959B CN109111959B CN201811240558.1A CN201811240558A CN109111959B CN 109111959 B CN109111959 B CN 109111959B CN 201811240558 A CN201811240558 A CN 201811240558A CN 109111959 B CN109111959 B CN 109111959B
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- Prior art keywords
- ammonia water
- pipe
- main
- electromagnetic valve
- water supply
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 330
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 330
- 239000000571 coke Substances 0.000 title claims abstract description 50
- 238000001816 cooling Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000005507 spraying Methods 0.000 claims description 32
- 238000000746 purification Methods 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 94
- 229910021529 ammonia Inorganic materials 0.000 description 44
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Industrial Gases (AREA)
- Coke Industry (AREA)
Abstract
The invention provides a coke oven raw gas ammonia water cooling system applied to the technical field of coke oven ammonia water cooling equipment, wherein one end of a main ammonia water supply pipe (4) of an ammonia water supply switching component (2) of the coke oven raw gas ammonia water cooling system is communicated with one end of a standby ammonia water supply pipe (5), the other end of the main ammonia water supply pipe (4) is communicated with the other end of the standby ammonia water supply pipe (5), the main ammonia water supply pipe (4) is communicated with an ammonia water conveying pipe (1) through an ammonia water main pipe (8), the ammonia water main pipe (8) is communicated with the standby ammonia water supply pipe (5) through a bypass pipe (9), an electromagnetic valve A (10) is arranged at one end of the main ammonia water supply pipe (4), an electromagnetic valve B (11) is arranged at the other end of the main ammonia water supply pipe (4), and an electromagnetic valve H (14) is arranged on the bypass pipe (9).
Description
Technical Field
The invention belongs to the technical field of coke oven ammonia water cooling equipment, and particularly relates to a coke oven raw gas ammonia water cooling system.
Background
The supply of ammonia water is a basic guarantee for maintaining the safe production of the coke oven, and the circulating ammonia water plays an important role in cooling raw coke oven gas in the coke oven production. Ammonia water is introduced into the bridge pipe for spraying, and the raw gas is directly cooled from about 850 ℃ to about 80 ℃. The coke oven has several ammonia water spraying pipes connected to each bridge pipe and the main ammonia pipe for spraying cooling raw gas and flushing cup valve, and the spraying of cooled ammonia water to raw gas may not be interrupted. At present, the coke oven cooling raw gas ammonia water circulation system in the industry has the problem of inconvenient maintenance, each ammonia water branch pipe is provided with a control valve, and when the branch pipe valve, the main pipe valve or a local pipeline needs to be maintained, the ammonia water supply is stopped in a whole section. After ammonia water supply is stopped, raw gas in the ascending pipe system cannot be cooled, so that the temperature of the bridge pipe and the gas collecting pipe is rapidly increased, and the safety production and equipment maintenance are greatly threatened, so that the actual requirements cannot be met.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the defects of the prior art, the coke oven raw gas ammonia water cooling system is simple in structure, and can overcome the difficulty that the ammonia water pipeline is damaged and the ammonia water is stopped to be supplied for overhauling through the annular circulating ammonia water supply switching part, so that when the coke oven raw gas ammonia water cooling system is overhauled, the ammonia water sprayed for cooling the raw gas can still be continuously supplied, the normal cooling of the coke oven raw gas is ensured, and the safe and reliable operation of the coke oven is realized.
The technical scheme adopted by the invention is as follows:
The invention relates to a coke oven raw gas ammonia water cooling system, which comprises an ammonia water conveying pipe and an ammonia water supply switching component, wherein one end of the ammonia water conveying pipe is connected with a purification An Shuicao, the other end of the ammonia water conveying pipe is of a closed structure, the ammonia water supply switching component comprises a main ammonia water supply pipe and a standby ammonia water supply pipe, one end of the main ammonia water supply pipe is communicated with one end of the standby ammonia water supply pipe through a communicating elbow I, the other end of the main ammonia water supply pipe is communicated with the other end of the standby ammonia water supply pipe through a communicating elbow II, the main ammonia water supply pipe is communicated with the ammonia water conveying pipe through an ammonia water main pipe, the ammonia water main pipe is communicated with the standby ammonia water supply pipe through a bypass pipe, one end of the main ammonia water supply pipe is provided with an electromagnetic valve A, the other end of the main ammonia water supply pipe is provided with an electromagnetic valve B, the position of the main ammonia water supply pipe at one side of a joint of the main ammonia water main pipe and the main ammonia water supply pipe is provided with the standby ammonia water supply pipe, the other side of the joint of the main ammonia water supply pipe is provided with an electromagnetic valve F, the bypass pipe is provided with an electromagnetic valve H, the main ammonia water supply pipe is provided with a plurality of main ammonia water supply branch pipes, the main ammonia water supply pipes are provided with a plurality of main ammonia water supply ammonia water branch pipes and standby ammonia water supply pipes are correspondingly provided with a plurality of main ammonia water.
An electromagnetic valve C is arranged at one end of a standby ammonia water supply pipe of the ammonia water supply switching component, an electromagnetic valve D is arranged at the other end of the standby ammonia water supply pipe, and a check valve I is arranged at the position, close to the ammonia water conveying pipe, of the ammonia water main pipe.
The ammonia water main pipe comprises a plurality of ammonia water main pipes, one end of each ammonia water main pipe is communicated with the ammonia water conveying pipe, the other end of each ammonia water main pipe is communicated with the main ammonia water supply pipe, one ammonia water main pipe is communicated with the standby ammonia water supply pipe through a bypass joint, the position of the main ammonia water supply pipe at one side of the joint part of the ammonia water main pipe communicated with the main ammonia water supply pipe is provided with an electromagnetic valve E, the position of the main ammonia water supply pipe at the other side of the joint part of the ammonia water main pipe communicated with the bypass pipe is provided with an electromagnetic valve F, one ammonia water main pipe communicated with the bypass pipe is provided with an electromagnetic valve I, and the other ammonia water main pipe is respectively provided with an electromagnetic valve G.
The coke oven raw gas ammonia water cooling system further comprises an emergency water pipe, the emergency water pipe comprises a plurality of emergency water branch pipes, each emergency water branch pipe is communicated with an ammonia water main pipe, an electromagnetic valve K is arranged on the emergency water pipe and close to one side of the ammonia water main pipe, a check valve II is arranged on the emergency water pipe and close to one side of the emergency water source, and a water pump is further arranged on the emergency water pipe.
The electromagnetic valve A, the electromagnetic valve B, the electromagnetic valve E, the electromagnetic valve F, the electromagnetic valve C, the electromagnetic valve D, the electromagnetic valve I and the electromagnetic valve G are respectively connected with the control component.
When the main ammonia water supply pipe of the ammonia water supply switching component is overhauled, the control component is arranged to be capable of controlling the electromagnetic valve E, the electromagnetic valve F, the electromagnetic valve C and the electromagnetic valve D to be in a disconnected state, and the control component is arranged to be capable of controlling the electromagnetic valve H and the electromagnetic valve I to be in an open state.
When the main ammonia water supply pipe of the ammonia water supply switching component is used, the control component is arranged to be capable of controlling the electromagnetic valve C, the electromagnetic valve D and the electromagnetic valve H to be in a disconnected state, and the control component is arranged to be capable of controlling the electromagnetic valve E, the electromagnetic valve F and the electromagnetic valve I to be in an opened state.
When one ammonia water main pipe communicated with the bypass pipe is overhauled, the control part is arranged to be capable of controlling the electromagnetic valve I to be in a disconnected state, and the control part is arranged to be capable of controlling the electromagnetic valve G on one ammonia water main pipe in the other ammonia water main pipe to be in an opened state.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
After the ammonia water supply switching component is arranged, the ammonia water supply switching component is of an annular structure, so that when the main ammonia water supply pipe is used, the standby ammonia water supply pipe is disconnected, the main ammonia water supply pipe is communicated, ammonia water can be supplied through the main ammonia water supply pipe, and the ammonia water is sprayed to a position to be sprayed from the main ammonia water spraying branch pipe. When the main ammonia water supply pipe needs to be overhauled or damaged, the main ammonia water supply pipe is disconnected, ammonia water can be supplied through the standby ammonia water supply pipe, the ammonia water is conveyed to the main ammonia water spraying branch pipe from the standby ammonia water spraying branch pipe, and then sprayed to a position needing to be sprayed from the main ammonia water spraying branch pipe. Like this, can ensure all the time that main aqueous ammonia blowout branch pipe is last to spray aqueous ammonia, can not appear supplying the disconnection problem, effectively ensure coke oven safe and reliable operation, improve operating efficiency and security, and equipment transformation is with low costs, and the input cost is limited. The ammonia water cooling system for the coke oven raw gas has a simple structure, and can overcome the difficulty of failure of damage of an ammonia water pipeline and maintenance of ammonia water supply stop through the annular circulating ammonia water supply switching part, so that when the ammonia water cooling system for the coke oven raw gas is maintained, the ammonia water sprayed for cooling the raw gas can be continuously supplied, normal cooling of the coke oven raw gas is ensured, and safe and reliable operation of the coke oven is realized.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic diagram of a coke oven raw gas ammonia water cooling system according to the invention;
Reference numerals: 1. ammonia water conveying pipe; 2. an ammonia water supply switching means; 3. purifying An Shuicao; 4. a main ammonia water supply pipe; 5. a standby ammonia water supply pipe; 6. a communicating elbow I; 7. a communicating elbow II; 8. an ammonia water main pipe; 9. a bypass pipe; 10. a solenoid valve A; 11. a solenoid valve B; 12. a solenoid valve E; 13. a solenoid valve F; 14. a solenoid valve H; 15. a main ammonia water spraying branch pipe; 16. spraying ammonia water out of the branch pipe for standby; 17. a solenoid valve C; 18. a solenoid valve D; 19. a check valve I; 20. an emergency water pipe; 21. an emergency water branch pipe; 22. an emergency water source; 23. a check valve II; 24. a water pump; 25. a control part; 26. a solenoid valve I; 27. and a solenoid valve G.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present invention by describing examples in further detail:
As shown in figure 1, the invention is a coke oven raw gas ammonia cooling system, the coke oven raw gas ammonia cooling system comprises an ammonia conveying pipe 1 and an ammonia supply switching component 2, one end of the ammonia conveying pipe 1 is connected with a purification water installation groove 3, the other end of the ammonia conveying pipe 1 is of a closed structure, the ammonia supply switching component 2 comprises a main ammonia supply pipe 4 and a standby ammonia supply pipe 5, one end of the main ammonia supply pipe 4 is communicated with one end of the standby ammonia supply pipe 5 through a communicating elbow I6, the other end of the main ammonia supply pipe 4 is communicated with the other end of the standby ammonia supply pipe 5 through a communicating elbow II7, the main ammonia supply pipe 4 is communicated with the ammonia conveying pipe 1 through a main ammonia pipe 8, the main ammonia pipe 8 is communicated with the standby ammonia supply pipe 5 through a bypass pipe 9, one end of the main ammonia supply pipe 4 is provided with an electromagnetic valve A10, the other end of the main ammonia supply pipe 4 is provided with an electromagnetic valve B11, the position of the main ammonia supply pipe 4 at one side of the joint of the main ammonia pipe 8 communicated with the main ammonia supply pipe 4 is provided with the standby ammonia supply pipe E12, one end of the main ammonia pipe 8 is provided with the main ammonia supply pipe 4 at one side of the other side of the joint part of the main ammonia supply pipe 4 communicated with the main ammonia supply pipe 4, the main ammonia pipe 4 is provided with the other end of the standby ammonia pipe 4 is provided with the standby ammonia pipe 4 corresponding to the electromagnetic valve F13, the main ammonia supply pipe 15 is provided with the standby ammonia supply branch pipe 15, and the main ammonia pipe is provided with the standby ammonia 15 is provided with the main ammonia supply branch pipe 15, and the main ammonia 15 is provided with the main ammonia 15 and the main ammonia supply pipe is provided with the main ammonia 15. In the above configuration, after the ammonia water supply switching member 2 is installed, the ammonia water supply switching member 2 has a ring-shaped structure, so that when the main ammonia water supply pipe 4 is used, the standby ammonia water supply pipe is disconnected, and at this time, the main ammonia water supply pipe is connected, and ammonia water can be supplied through the main ammonia water supply pipe, and the ammonia water is sprayed from the main ammonia water spraying branch pipe 15 to a position to be sprayed. When the main ammonia water supply pipe is required to be overhauled or damaged, the main ammonia water supply pipe is disconnected, ammonia water can be supplied through the standby ammonia water supply pipe, the ammonia water is conveyed to the main ammonia water spraying branch pipe 15 from the standby ammonia water spraying branch pipe 16, and then sprayed to a position required to be sprayed from the main ammonia water spraying branch pipe 15. Like this, can ensure all the time that main aqueous ammonia blowout branch pipe 15 is continuously sprayed aqueous ammonia, supply disconnection problem can not appear, effectively ensure coke oven safe and reliable operation, improve operating efficiency and security, and equipment transformation is with low costs, and the input cost is limited. The ammonia water cooling system for the coke oven raw gas has a simple structure, and can overcome the difficulty of maintenance of the ammonia water supply stopping by the failure of the ammonia water pipeline due to the annular circulating ammonia water supply switching part, so that the ammonia water sprayed to cool the raw gas can be continuously supplied when the ammonia water cooling system for the coke oven raw gas is maintained, the normal cooling of the coke oven raw gas is ensured, and the safe and reliable operation of the coke oven is realized.
An electromagnetic valve C17 is arranged at one end of a standby ammonia water supply pipe 5 of the ammonia water supply switching component 2, an electromagnetic valve D18 is arranged at the other end of the standby ammonia water supply pipe 5, and a check valve I19 is arranged at the position, close to the ammonia water conveying pipe 1, of the ammonia water main pipe 8. In the above structure, when the main ammonia water supply pipe 4 of the ammonia water supply switching component 2 is overhauled, the control component 25 can control the solenoid valve E12, the solenoid valve F13, the solenoid valve C17 and the solenoid valve D18 to be in the disconnected state, and the control component 25 can control the solenoid valve H14 and the solenoid valve I26 to be in the opened state at the same time, at the moment, ammonia water enters the ammonia water main pipe from the ammonia water conveying pipe, then enters the standby ammonia water supply pipe through the bypass switch, then ammonia water is conveyed to the main ammonia water spraying branch pipe 15 from the standby ammonia water spraying branch pipe 16, and then sprayed to the position to be sprayed from the main ammonia water spraying branch pipe 15, so that the continuous supply of ammonia water by the main ammonia water supply pipe is realized, and the overhauling of the main ammonia water supply pipe cannot be influenced. When the main ammonia water supply pipe 4 of the ammonia water supply switching unit 2 is used, the control unit 25 can control the solenoid valves C17, D18, H14 to be in the off state, and the control unit 25 can control the solenoid valves E12, F13, I26 to be in the on state. At this time, ammonia water enters the main ammonia water pipe from the ammonia water delivery pipe, then enters the main ammonia water supply pipe, and is sprayed from the main ammonia water spraying branch pipe 15 to a position where spraying is required, and at this time, the standby ammonia water supply pipe is in an off state. The invention provides an annular circulating ammonia water supply switching system, which solves the problem that an ammonia water pipeline is damaged and fails to stop supplying ammonia water for overhauling, and can continuously supply ammonia water sprayed for cooling raw coke oven gas when any valve or one section of pipeline leaks or the pipeline fails to need overhauling after the system is applied, so that the normal cooling of the raw coke oven gas can be ensured.
The ammonia water main pipes 8 comprise a plurality of ammonia water conveying pipes 1, one end of each ammonia water main pipe 8 is communicated with the ammonia water conveying pipe 1, the other end of each ammonia water main pipe 8 is communicated with the main ammonia water supply pipe 4, one ammonia water main pipe 8 is communicated with the standby ammonia water supply pipe 5 through the bypass pipe 9, the electromagnetic valve E12 is arranged at the position of the main ammonia water supply pipe 4 at one side of the joint of one ammonia water main pipe 8 communicated with the main ammonia water supply pipe 4, the electromagnetic valve F13 is arranged at the position of the main ammonia water supply pipe 4 at the other side of the joint of one ammonia water main pipe 8 communicated with the bypass pipe 9 and the main ammonia water supply pipe 4, the electromagnetic valve I26 is arranged on one ammonia water main pipe 8 communicated with the bypass pipe 9, and the electromagnetic valve G27 is respectively arranged on the other ammonia water main pipe 8. In the above-mentioned structure, the above-mentioned material,
The coke oven raw gas ammonia water cooling system further comprises an emergency water pipe 20, the emergency water pipe 20 comprises a plurality of emergency water branch pipes 21, each emergency water branch pipe 21 is communicated with one ammonia water main pipe 8, an electromagnetic valve K21 is arranged at a position, close to the ammonia water main pipe 8, on one side of the emergency water pipe 20, a check valve II23 is arranged at a position, close to an emergency water source 22, on the emergency water pipe 20, and a water pump 24 is further arranged on the emergency water pipe 20. According to the structure, when the purifying water tank 3 fails suddenly and ammonia water is stopped, in order to realize cooling so as to prevent the coke oven from running, after the purifying water tank 3 stops, the control part automatically controls the electromagnetic valve K21 on the emergency water pipe 20 to be automatically opened, and the emergency industrial water is started to be sprayed out from the main ammonia water spraying branch pipe 15, so that the raw gas is cooled by the temporary ammonia water.
The electromagnetic valve A10, the electromagnetic valve B11, the electromagnetic valve E12, the electromagnetic valve F13, the electromagnetic valve C17, the electromagnetic valve D18, the electromagnetic valve I26 and the electromagnetic valve G27 are respectively connected with the control part 25. In the coke oven raw gas ammonia water cooling system, each electromagnetic valve is respectively connected with the control part, and when the switching between the main ammonia water supply pipe and the standby ammonia water supply pipe is required, the corresponding electromagnetic valve is controlled to be opened only through the control part, and then the corresponding electromagnetic valve is controlled to be closed, so that the reliable switching can be realized, the uninterrupted supply of the ammonia water is ensured, and the requirements of the coke oven are met.
When the main ammonia water supply pipe 4 of the ammonia water supply switching part 2 is overhauled, the control part 25 is provided with a structure capable of controlling the solenoid valve E12, the solenoid valve F13, the solenoid valve C17 and the solenoid valve D18 to be in a disconnected state, and the control part 25 is provided with a structure capable of controlling the solenoid valve H14 and the solenoid valve I26 to be in an opened state. When the main ammonia water supply pipe 4 of the ammonia water supply switching means 2 is used, the control means 25 is configured to control the solenoid valves C17, D18, H14 to be in the off state, and the control means 25 is configured to control the solenoid valves E12, F13, I26 to be in the on state.
When one ammonia main pipe 8 communicated with the bypass pipe 9 is overhauled, the control part 25 is provided with a structure capable of controlling the electromagnetic valve I26 to be in a disconnected state, and the control part 25 is provided with a structure capable of controlling the electromagnetic valve G27 on one ammonia main pipe 8 in the other ammonia main pipe 8 to be in an opened state. According to the structure, when one ammonia water main pipe 8 communicated with the bypass pipe 9 is overhauled, the bypass pipe can be disconnected through the electromagnetic valve, then the electromagnetic switch on the other ammonia water main pipe is opened, normal supply of ammonia water is realized, and overhauling is not influenced.
In the coke oven raw gas ammonia water cooling system, a plurality of check valves are designed and installed on each pipeline along the flowing direction of ammonia water sources, and each check valve is used for preventing ammonia water from flowing backwards.
After the ammonia water supply switching component is arranged, the ammonia water supply switching component is of an annular structure, so that when the main ammonia water supply pipe is used, the standby ammonia water supply pipe is disconnected, the main ammonia water supply pipe is communicated, ammonia water can be supplied through the main ammonia water supply pipe, and the ammonia water is sprayed to a position to be sprayed from the main ammonia water spraying branch pipe. When the main ammonia water supply pipe needs to be overhauled or damaged, the main ammonia water supply pipe is disconnected, ammonia water can be supplied through the standby ammonia water supply pipe, the ammonia water is conveyed to the main ammonia water spraying branch pipe from the standby ammonia water spraying branch pipe, and then sprayed to a position needing to be sprayed from the main ammonia water spraying branch pipe. Like this, can ensure all the time that main aqueous ammonia blowout branch pipe is last to spray aqueous ammonia, can not appear supplying the disconnection problem, effectively ensure coke oven safe and reliable operation, improve operating efficiency and security, and equipment transformation is with low costs, and the input cost is limited. The ammonia water cooling system for the coke oven raw gas has a simple structure, and can overcome the difficulty of failure of damage of an ammonia water pipeline and maintenance of ammonia water supply stop through the annular circulating ammonia water supply switching part, so that when the ammonia water cooling system for the coke oven raw gas is maintained, the ammonia water sprayed for cooling the raw gas can be continuously supplied, normal cooling of the coke oven raw gas is ensured, and safe and reliable operation of the coke oven is realized.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the invention is not limited by the foregoing, but rather is within the scope of the invention as long as various modifications are made by the method concept and technical scheme of the invention, or the concept and technical scheme of the invention are directly applied to other occasions without modification.
Claims (5)
1. A coke oven raw gas ammonia water cooling system is characterized in that: the coke oven raw gas ammonia water cooling system comprises an ammonia water conveying pipe (1) and an ammonia water supply switching component (2), one end of the ammonia water conveying pipe (1) is connected with a purification An Shuicao (3), the other end of the ammonia water conveying pipe (1) is of a closed structure, the ammonia water supply switching component (2) comprises a main ammonia water supply pipe (4) and a standby ammonia water supply pipe (5), one end of the main ammonia water supply pipe (4) is communicated with one end of the standby ammonia water supply pipe (5) through a communication elbow I (6), the other end of the main ammonia water supply pipe (4) is communicated with the other end of the standby ammonia water supply pipe (5) through a communication elbow II (7), the main ammonia water supply pipe (4) is communicated with the ammonia water conveying pipe (1) through an ammonia water main pipe (8), the main ammonia water pipe (8) is communicated with the standby ammonia water supply pipe (5) through an ammonia water main pipe (9), one end of the main ammonia water supply pipe (4) is provided with an electromagnetic valve A (10), the other end of the main ammonia water supply pipe (4) is provided with an electromagnetic valve B (11), one end of the main ammonia water supply pipe (4) is provided with an electromagnetic valve B (8), one side of the main ammonia water supply pipe (4) is provided with a combination part (12) communicated with the main ammonia water supply pipe (4) through the other side of the main ammonia water pipe (4), the bypass pipe (9) is provided with an electromagnetic valve H (14), the main ammonia water supply pipe (4) is provided with a plurality of main ammonia water spraying branch pipes (15), the standby ammonia water supply pipe (5) is provided with a plurality of standby ammonia water spraying branch pipes (16), and each standby ammonia water spraying branch pipe (16) is communicated with a corresponding main ammonia water spraying branch pipe (15);
an electromagnetic valve C (17) is arranged at one end of a standby ammonia water supply pipe (5) of the ammonia water supply switching component (2), an electromagnetic valve D (18) is arranged at the other end of the standby ammonia water supply pipe (5), and a check valve I (19) is arranged at the position, close to the ammonia water conveying pipe (1), of the ammonia water main pipe (8);
When the main ammonia water supply pipe (4) of the ammonia water supply switching component (2) is overhauled, the control component (25) can control the electromagnetic valve E (12), the electromagnetic valve F (13), the electromagnetic valve C (17) and the electromagnetic valve D (18) to be in a disconnected state, the control component (25) can control the electromagnetic valve H (14) and the electromagnetic valve I (26) to be in an opened state at the same time, ammonia water enters the ammonia water main pipe from the ammonia water conveying pipe and then enters the standby ammonia water supply pipe through the bypass pipe, ammonia water is conveyed to the main ammonia water spraying branch pipe (15) from the standby ammonia water spraying branch pipe (16), and then sprayed to a position to be sprayed from the main ammonia water spraying branch pipe (15), so that continuous supply of the ammonia water by bypassing the main ammonia water supply pipe is realized, and overhauling of the main ammonia water supply pipe is not affected; when the main ammonia water supply pipe (4) of the ammonia water supply switching component (2) is used, the control component (25) can control the solenoid valve C (17), the solenoid valve D (18) and the solenoid valve H (14) to be in a disconnected state, the control component (25) can control the solenoid valve E (12), the solenoid valve F (13) and the solenoid valve I (26) to be in an opened state, ammonia water enters the ammonia water main pipe from the ammonia water conveying pipe and then enters the main ammonia water supply pipe, and then is sprayed to a position to be sprayed from the main ammonia water spraying branch pipe (15), and the standby ammonia water supply pipe is in a disconnected state;
The ammonia water main pipes (8) comprise a plurality of ammonia water main pipes (8), one end of each ammonia water main pipe (8) is communicated with the ammonia water conveying pipe (1), the other end of each ammonia water main pipe (8) is communicated with the main ammonia water supply pipe (4), one ammonia water main pipe (8) is communicated with the standby ammonia water supply pipe (5) through a bypass pipe (9), an electromagnetic valve E (12) is arranged at the position of the main ammonia water supply pipe (4) at one side of the joint part of the ammonia water main pipe (8) communicated with the main ammonia water supply pipe (4), an electromagnetic valve F (13) is arranged at the position of the main ammonia water supply pipe (4) at the other side of the joint part of the ammonia water main pipe (8) communicated with the bypass pipe (9), an electromagnetic valve I (26) is arranged on the ammonia water main pipe (8) communicated with the bypass pipe (9), and an electromagnetic valve G (27) is respectively arranged on the other ammonia water main pipes (8);
The coke oven raw gas ammonia water cooling system further comprises an emergency water pipe (20), the emergency water pipe (20) comprises a plurality of emergency water branch pipes (21), each emergency water branch pipe (21) is communicated with an ammonia water main pipe (8), an electromagnetic valve K (21) is arranged at a position, close to one side of the ammonia water main pipe (8), of the emergency water pipe (20), a check valve II (23) is arranged at a position, close to one side of an emergency water source (22), of the emergency water pipe (20), and a water pump (24) is further arranged on the emergency water pipe (20).
2. The coke oven raw gas ammonia water cooling system according to claim 1, wherein: the electromagnetic valve A (10), the electromagnetic valve B (11), the electromagnetic valve E (12), the electromagnetic valve F (13), the electromagnetic valve C (17), the electromagnetic valve D (18), the electromagnetic valve I (26) and the electromagnetic valve G (27) are respectively connected with the control component (25).
3. The coke oven raw gas ammonia water cooling system according to claim 1 or 2, characterized in that: when the main ammonia water supply pipe (4) of the ammonia water supply switching component (2) is overhauled, the control component (25) is arranged to be capable of controlling the electromagnetic valve E (12), the electromagnetic valve F (13), the electromagnetic valve C (17) and the electromagnetic valve D (18) to be in a disconnected state, and the control component (25) is arranged to be capable of controlling the electromagnetic valve H (14) and the electromagnetic valve I (26) to be in an opened state.
4. The coke oven raw gas ammonia water cooling system according to claim 1 or 2, characterized in that: when the main ammonia water supply pipe (4) of the ammonia water supply switching component (2) is used, the control component (25) is configured to control the electromagnetic valve C (17), the electromagnetic valve D (18) and the electromagnetic valve H (14) to be in a disconnected state, and the control component (25) is configured to control the electromagnetic valve E (12), the electromagnetic valve F (13) and the electromagnetic valve I (26) to be in an open state.
5. The coke oven raw gas ammonia water cooling system according to claim 1 or 2, characterized in that: when one ammonia water main pipe (8) communicated with the bypass pipe (9) is overhauled, the control component (25) is arranged to be capable of controlling the electromagnetic valve I (26) to be in a disconnected state, and the control component (25) is arranged to be capable of controlling the electromagnetic valve G (27) on one ammonia water main pipe (8) in the other ammonia water main pipes (8) to be in an opened state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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