CN220685030U - Gas horizontal pipe primary cooler with three-section structure - Google Patents
Gas horizontal pipe primary cooler with three-section structure Download PDFInfo
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- CN220685030U CN220685030U CN202321775844.4U CN202321775844U CN220685030U CN 220685030 U CN220685030 U CN 220685030U CN 202321775844 U CN202321775844 U CN 202321775844U CN 220685030 U CN220685030 U CN 220685030U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 45
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 45
- 238000011010 flushing procedure Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000003034 coal gas Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract description 12
- 238000012546 transfer Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 58
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 24
- 239000000571 coke Substances 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application provides a coal gas horizontal pipe primary cooler with a three-section structure, which comprises an inlet section pipe fitting, a rectangular tubular main body part and an outlet section pipe fitting, wherein the main body part comprises a hot water section pipe fitting, a circulating water section pipe fitting and a refrigerating water section pipe fitting from top to bottom; the top of the inlet section pipe fitting is provided with a gas inlet; the hot water section pipe fitting is provided with a first heat exchange pipe, the circulating water section pipe fitting is provided with a second heat exchange pipe, the refrigerating water section pipe fitting is internally provided with a third heat exchange pipe, and the outlet section pipe fitting is provided with a coal gas outlet, a mixed liquid outlet and a manhole; the hot ammonia water flushing assembly is arranged in the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting. The utility model organically combines the technologies of gas-liquid two-phase heat transfer mechanism, equipment structure optimization and the like, realizes the gas-liquid two-phase heat transfer of liquid and gas in a limited equipment space, ensures the removal of tar and naphthalene in gas, and has simple structure, economy, rationality, safety, stability and excellent performance.
Description
Technical Field
The application relates to the technical field of coke oven gas purification treatment, in particular to a gas transverse tube primary cooler with a three-section structure.
Background
Raw gas from the coke oven enters a gas purifying system through a gas collecting pipe and a gas sucking pipe bridge. The temperature of the gas is 80-85 ℃, a large amount of Jiao Youqi and ammonia-containing water vapor are also contained in the gas, and in order to further cool the gas, the gas needs to be further cooled in a primary cooler, and most of the tar vapor and the ammonia-containing water vapor are condensed. If the temperature of the gas outlet of the primary cooler, naphthalene, tar, dust and the like do not meet the process requirements, equipment and pipelines such as a tower, a heat exchanger and the like in the subsequent process are blocked, the unit operation efficiency of desulfurization, ammonia washing and benzene washing is obviously reduced, the quality of the factory gas can not reach the standard, the normal operation of the gas purification system and clean gas delivery is seriously influenced, the operation of a gas blower is endangered, and the corrosion of equipment and a pipe network is caused. Therefore, the primary cooling process of the coal gas is an important ring of coal gas purification. The prior gas primary cooling process adopts a transverse tube type primary cooler, the equipment currently has the problems of leakage, blockage, corrosion and the like of a heat exchange tube, a coking enterprise needs to replace the heat exchange tube in a large quantity for about 3 years at most, continuous and stable operation of production is ensured in actual design, the primary cooler equipment is generally considered to be increased for standby, and project construction investment is increased intangibly.
Therefore, the utility model discloses a gas transverse tube primary cooler with a three-section structure (also called a three-section pipe fitting structure) so as to solve the problems of leakage, blockage, corrosion and the like of equipment, and better realize the cascade utilization of gas waste heat, energy conservation and emission reduction.
Disclosure of Invention
The embodiment of the application provides a gas horizontal pipe primary cooler with a three-section structure, which organically combines the technologies of gas-liquid two-phase heat transfer mechanism, equipment structure optimization and the like, realizes the gas-liquid two-phase heat transfer of liquid and gas in a limited primary cooler equipment space, ensures the removal of tar and naphthalene in gas, and further realizes the simple structure, economy, rationality, safety and stability and excellent performance of the primary cooler.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
According to one aspect of the embodiment of the application, a gas horizontal pipe primary cooler with a three-section structure is provided, and the gas horizontal pipe primary cooler comprises an inlet section pipe fitting, a rectangular tubular main body part and an outlet section pipe fitting, wherein the main body part comprises a hot water section pipe fitting, a circulating water section pipe fitting and a refrigerating water section pipe fitting from top to bottom;
the top of the inlet section pipe fitting is provided with a gas inlet;
a first heat exchange tube is arranged in the hot water section tube fitting, a hot water inlet is formed in the side wall of the hot water section tube fitting, which extends out of the inlet end of the first heat exchange tube, and a hot water outlet is formed in the side wall of the hot water section tube fitting, which extends out of the outlet end of the first heat exchange tube;
the circulating water section pipe fitting is internally provided with a second heat exchange pipe, the side wall of the circulating water section pipe fitting, extending out of the inlet end of the second heat exchange pipe, is provided with a circulating water inlet, and the side wall of the circulating water section pipe fitting, extending out of the outlet end of the second heat exchange pipe, is provided with a circulating water outlet;
a third heat exchange tube is arranged in the refrigerating water section tube fitting, a refrigerating water inlet is formed in the side wall of the refrigerating water section tube fitting, extending out of the inlet end of the third heat exchange tube, and a refrigerating water outlet is formed in the side wall of the refrigerating water section tube fitting, extending out of the outlet end of the third heat exchange tube;
the outlet section pipe fitting is provided with a gas outlet, a mixed liquid outlet and a manhole;
the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting are integrally formed, and a hot ammonia water flushing assembly is arranged in the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting and used for flushing coal gas in the coal gas heat exchange process to remove impurities.
In some embodiments of the present application, the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are all corrugated tubes, and the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are connected with the wall plate of the main body portion by expansion.
In some embodiments of the present application, the hot aqueous ammonia flushing assembly includes a first hot aqueous ammonia flushing device, a second hot aqueous ammonia flushing device, a third hot aqueous ammonia flushing device, and a fourth hot aqueous ammonia flushing device, the first hot aqueous ammonia flushing device set up in between the inlet section pipe fitting and the hot water section pipe fitting, the second hot aqueous ammonia flushing device set up in between the circulating water section pipe fitting, the third hot aqueous ammonia flushing device set up in between the circulating water section pipe fitting with between the cooling water section pipe fitting, the fourth hot aqueous ammonia flushing device set up in between the cooling water section pipe fitting with between the outlet section pipe fitting.
In some embodiments of the present application, the top of the inlet section pipe fitting is provided with a spare ammonia water spray port.
In some embodiments of the present application, the heat exchange tube is a bellows for increasing the unit heat exchange inside and outside the tube.
In some embodiments of the present application, the heat exchange tube is a corrugated tube and the heat exchange tube and the scaling layer of the inner wall of the heat exchange tube have different linear expansion coefficients, and are used for being affected by the temperature difference and the pressure difference outside the tube, and the corrugated tube deforms along the axial direction, so that the scaling layer inside the corrugated tube and outside the corrugated tube is peeled off.
In some embodiments of the present application, the heat exchange tube is a bellows, and the flow direction and flow speed of the liquid in the heat exchange tube are changed.
In some embodiments of the present application, the outlet section pipe fitting comprises a rectangular shell and a conical shell with a rectangular bottom surface as a round top, the rectangular shell bottom and the conical shell top are integrally formed, the gas outlet is arranged on the side wall of the rectangular shell, the mixed liquid outlet is arranged on the bottom of the conical shell, and the manhole is positioned on the side wall of the rectangular shell.
In some embodiments of the present application, the body portion is coupled to the heat exchange tube assembly using flanges and fasteners.
In some embodiments of the present application, the inlet section pipe, the hot water section pipe, the circulating water section pipe, the cooling water section pipe, and the outlet section pipe are all welded and sealed.
The beneficial effects of this application: the coke oven gas enters the inlet section pipe fitting through the gas inlet, then enters the hot water section pipe fitting, then is cooled through heat exchange with hot water, circulating water and refrigerating water respectively through the circulating water section pipe fitting and the refrigerating water section pipe fitting, the three sections of cooling water are subjected to heat exchange with the coke oven gas outside the pipes through the first heat exchange pipe, the second heat exchange pipe and the third heat exchange pipe, the cooled coke oven gas finally passes through the outlet section pipe fitting, and meanwhile, the gas is subjected to heat exchange through the hot ammonia water flushing component arranged in the main body part, so that the gas-liquid two-phase heat transfer mechanism, the equipment structure optimization and other technologies are organically combined, the two heat transfer of liquid and gas in the limited equipment space is realized, the removal of tar and naphthalene in the gas is ensured, the requirement of the subsequent gas purification procedure can be met, and the heat exchange effect in the primary cooler is greatly improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 shows a schematic diagram of a gas cross tube primary cooler of a three-stage structure in an embodiment of the present application;
fig. 2 is a schematic cross-sectional view showing a heat exchange tube according to an embodiment of the present application.
Reference numerals: 1. an inlet section tube; 11. a gas inlet; 2. a main body portion; 21. a hot water section pipe fitting; 211. a first heat exchange tube; 22. a circulating water section pipe fitting; 221. a second heat exchange tube; 23. manufacturing a cold water section pipe fitting; 231. a third heat exchange tube; 3. an outlet section tube; 31. a gas outlet; 32. a mixed liquid outlet; 33. a manhole; 4. a hot ammonia water flushing assembly; 41. a first hot ammonia water flushing device; 42. a second hot ammonia water flushing device; 43. a third hot ammonia water flushing device; 44. a fourth hot ammonia water flushing device; 5. and (5) a spare ammonia water spraying port.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The following is a specific description of embodiments of the present application:
referring to fig. 1, a schematic structural diagram of a gas horizontal tube primary cooler with a three-stage structure in an embodiment of the present application is shown, and the embodiment of the present application provides a gas horizontal tube primary cooler with a three-stage structure, which includes an inlet section tube 1, a rectangular tubular main body portion 2, and an outlet section tube 3, wherein the main body portion 2 includes a hot water section tube 21, a circulating water section tube 22, and a refrigerating water section tube 23 from top to bottom;
the top of the inlet section pipe fitting 1 is provided with a gas inlet 11;
the inside of the hot water section pipe fitting 21 is provided with a first heat exchange pipe 211, the side wall of the hot water section pipe fitting 21 extending out of the inlet end of the first heat exchange pipe 211 is provided with a hot water inlet, and the side wall of the hot water section pipe fitting 21 extending out of the outlet end of the first heat exchange pipe 211 is provided with a hot water outlet;
the inside of the circulating water section pipe fitting 22 is provided with a second heat exchange pipe 221, the side wall of the circulating water section pipe fitting 22 extending out of the inlet end of the second heat exchange pipe 221 is provided with a circulating water inlet, and the side wall of the circulating water section pipe fitting 22 extending out of the outlet end of the second heat exchange pipe 221 is provided with a circulating water outlet;
the inside of the refrigeration water section pipe fitting 23 is provided with a third heat exchange pipe 231, the side wall of the refrigeration water section pipe fitting 23 extending out of the inlet end of the third heat exchange pipe 231 is provided with a refrigeration water inlet, and the side wall of the refrigeration water section pipe fitting 23 extending out of the outlet end of the third heat exchange pipe 231 is provided with a refrigeration water outlet;
the outlet section pipe fitting 3 is provided with a gas outlet 31, a mixed liquid outlet 32 and a manhole 33;
the gas heat exchange device comprises an inlet section pipe fitting 1, a hot water section pipe fitting 21, a circulating water section pipe fitting 22, a refrigerating water section pipe fitting 23 and an outlet section pipe fitting 3 which are integrally formed, wherein a hot ammonia water flushing assembly 4 is arranged in the inlet section pipe fitting 1, the hot water section pipe fitting 21, the circulating water section pipe fitting 22, the refrigerating water section pipe fitting 23 and the outlet section pipe fitting 3 and used for flushing gas in the gas heat exchange process so as to remove impurities.
The utility model has the beneficial effects that: the coke oven gas enters the inlet section pipe fitting 1 through the gas inlet 11, then enters the hot water section pipe fitting 21, then is subjected to heat exchange with hot water, circulating water and refrigerating water respectively through the circulating water section pipe fitting 22 and the refrigerating water section pipe fitting 23 for cooling, and three sections of cooling water are subjected to heat exchange with coke oven gas outside the pipes through the first heat exchange pipe 211, the second heat exchange pipe 221 and the third heat exchange pipe 231, and finally the cooled coke oven gas is subjected to heat exchange with the gas through the outlet section pipe fitting, and meanwhile, the hot ammonia water flushing assembly 4 is arranged in the main body part 2, so that the gas-liquid two-phase heat transfer mechanism, equipment structure optimization and other technologies are organically combined, the two heat transfer of liquid and gas in a limited equipment space is realized, the removal of tar and naphthalene in the gas is ensured, the requirements of a subsequent gas purification process can be met, and the heat exchange effect in the primary cooler is greatly improved.
In some embodiments of the present application, the first heat exchange tube 211, the second heat exchange tube 221 and the third heat exchange tube 231 are all corrugated tubes, and the first heat exchange tube 211, the second heat exchange tube 221 and the third heat exchange tube 231 are connected with the wall plate of the main body portion 2 by expansion.
It should be understood that the first heat exchange tube 211, the second heat exchange tube 221, and the third heat exchange tube 231 are respectively connected with the wall plate of the main portion by adopting strength expansion, so that the first heat exchange tube 211, the second heat exchange tube 221, and the third heat exchange tube 231 are more waterproof with the main portion 2.
In some embodiments of the present application, the hot aqueous ammonia flushing assembly 4 includes a first hot aqueous ammonia flushing device 41, a second hot aqueous ammonia flushing device 42, a third hot aqueous ammonia flushing device 43, and a fourth hot aqueous ammonia flushing device 44, the first hot aqueous ammonia flushing device 41 being disposed between the inlet section pipe 1 and the hot water section pipe 21, the second hot aqueous ammonia flushing device 42 being disposed between the circulating water section pipe 22, the third hot aqueous ammonia flushing device 43 being disposed between the circulating water section pipe 22 and the chilled water section pipe 23, the fourth hot aqueous ammonia flushing device 44 being disposed between the chilled water section pipe 23 and the outlet section pipe 3.
It is to be understood that by arrangingThe first, second, third and fourth hot ammonia water flushing devices 41, 42, 43 and 44 can flush the coke oven gas through four hot ammonia water spraying layers in the heat exchange process, thereby removing tar, naphthalene and other impurities in the coke oven gas 。
In some embodiments of the present application, the top of the inlet section tube 1 is provided with a spare ammonia water spray 5.
It should be understood that the standby ammonia water spraying port 5 is arranged at the key top of the inlet section, so that the gas can be cooled when the temperature exceeds the standard in the gas inlet process, and the temperature in the main body part 2 is kept in the normal operation range.
In some embodiments of the present application, referring to fig. 2, a schematic cross-sectional structure of a heat exchange tube in an embodiment of the present application is shown, where the heat exchange tube is a bellows for increasing the unit heat exchange in the tube.
It is understood that the heat exchange efficiency is higher, the equipment size is reduced, and the equipment investment is saved due to the increase of the unit heat exchange area in the pipe and outside the pipe.
In some embodiments of the present application, the heat exchange tube is a bellows and the coefficients of linear expansion of the scale layer of the heat exchange tube and the inner wall of the heat exchange tube are different for being affected by the temperature difference and the pressure difference inside and outside the tube, and the bellows deforms along the axial direction to enable the scale layer inside and outside the bellows to fall off.
It is to be understood that, because the corrugated pipe is affected by the temperature difference and the pressure difference between the inside and the outside of the pipe, the corrugated pipe can generate tiny telescopic deformation in the axial direction, the curvature of the inside and the outside of the pipe can change frequently, and because the linear expansion coefficients of the scaling layer and the corrugated pipe are very different, larger tensile stress is generated between the deposited scale and the corrugated pipe, the scale can be promoted to fall off, the automatic cleaning is realized, the scaling speed of liquid in the pipe can be greatly delayed, and the maintenance and replacement time of the heat exchange pipe is effectively prolonged.
In some embodiments of the present application, the heat exchange tube is a bellows for changing the direction and speed of flow of the liquid within the heat exchange tube.
It is to be understood that the heat exchange tube is a corrugated tube, the flow direction and the flow speed of the liquid in the heat exchange tube can be changed, the flow speed and the flow direction of the fluid in the corrugated tube are continuously changed due to the continuous abrupt change of the cross section of the flow channel of the corrugated tube, the turbulence intensity of the fluid in the corrugated tube is greatly improved, the laminar flow of the bottom layer is destroyed, the flow state of the fluid boundary layer is changed, and therefore the convection heat transfer coefficient inside and outside the corrugated tube is improved, the turbulence speed can be achieved under the condition that the flow speed of the fluid in the corrugated tube is lower, the heat exchange effect of unit volume is increased, the equipment size is reduced, the equipment investment is saved, and the solid impurities in the fluid are not easy to deposit and scale due to the increase of the turbulence degree of the liquid in the heat exchange tube.
In some embodiments of the present application, the outlet section pipe fitting includes a rectangular housing and a conical housing with a rectangular bottom surface on the top, the rectangular housing bottom and the conical housing top are integrally formed, the gas outlet 31 is disposed on the side wall of the rectangular housing, the mixed liquor outlet 32 is disposed on the bottom of the conical housing, and the manhole 33 is disposed on the side wall of the rectangular housing.
It is to be understood that, among the prior art, the conical shell adopts the swash plate, and conical shell compares the swash plate under the prerequisite of same height, and its inclination is bigger, consequently self-cleaning ability is higher, more makes things convenient for the discharge of mixed solution to be difficult to produce clean dead angle, do benefit to the manhole more and advance the people to go to clean.
In some embodiments of the present application, the body portion 2 is coupled to the heat exchange tube assembly using flanges and fasteners.
It will be appreciated that the use of flanges and fasteners to connect the main body portion 2 to the heat exchange tube assembly prevents the heat exchange tube assembly from sliding relative to the main body portion 2 more difficult and thus more difficult to leak.
In some embodiments of the present application, the inlet section pipe fitting 1, the hot water section pipe fitting 21, the circulating water section pipe fitting 22, the refrigerating water section pipe fitting 23 and the outlet section pipe fitting 3 are all connected by welding and sealing.
It should be understood that the inlet section pipe fitting 1, the hot water section pipe fitting 21, the circulating water section pipe fitting 22, the refrigerating water section pipe fitting 23 and the outlet section pipe fitting 3 are all connected in a welding sealing manner, so that the connection among the inlet section pipe fitting 1, the hot water section pipe fitting 21, the circulating water section pipe fitting 22, the refrigerating water section pipe fitting 23 and the outlet section pipe fitting 3 is firmer and sealed.
It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a coal gas cross tube primary cooler of three-section structure which is characterized in that the primary cooler comprises an inlet section pipe fitting, a rectangular tubular main body part and an outlet section pipe fitting, wherein the main body part comprises a hot water section pipe fitting, a circulating water section pipe fitting and a refrigerating water section pipe fitting from top to bottom;
the top of the inlet section pipe fitting is provided with a gas inlet;
a first heat exchange tube is arranged in the hot water section tube fitting, a hot water inlet is formed in the side wall of the hot water section tube fitting, which extends out of the inlet end of the first heat exchange tube, and a hot water outlet is formed in the side wall of the hot water section tube fitting, which extends out of the outlet end of the first heat exchange tube;
the circulating water section pipe fitting is internally provided with a second heat exchange pipe, the side wall of the circulating water section pipe fitting, extending out of the inlet end of the second heat exchange pipe, is provided with a circulating water inlet, and the side wall of the circulating water section pipe fitting, extending out of the outlet end of the second heat exchange pipe, is provided with a circulating water outlet;
a third heat exchange tube is arranged in the refrigerating water section tube fitting, a refrigerating water inlet is formed in the side wall of the refrigerating water section tube fitting, extending out of the inlet end of the third heat exchange tube, and a refrigerating water outlet is formed in the side wall of the refrigerating water section tube fitting, extending out of the outlet end of the third heat exchange tube;
the outlet section pipe fitting is provided with a gas outlet, a mixed liquid outlet and a manhole;
the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting are integrally formed, and a hot ammonia water flushing assembly is arranged in the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting and used for flushing coal gas in the coal gas heat exchange process to remove impurities.
2. The gas cross tube primary cooler of claim 1, wherein the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are all corrugated tubes, and the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are connected with the wall plate of the main body part in an expansion manner.
3. The gas cross pipe primary cooler of claim 2, wherein the hot ammonia water flushing assembly comprises a first hot ammonia water flushing device, a second hot ammonia water flushing device, a third hot ammonia water flushing device and a fourth hot ammonia water flushing device, wherein the first hot ammonia water flushing device is arranged between the inlet section pipe fitting and the hot water section pipe fitting, the second hot ammonia water flushing device is arranged in the middle of the circulating water section pipe fitting, the third hot ammonia water flushing device is arranged between the circulating water section pipe fitting and the refrigerating water section pipe fitting, and the fourth hot ammonia water flushing device is arranged between the refrigerating water section pipe fitting and the outlet section pipe fitting.
4. The gas cross pipe primary cooler according to claim 3, wherein a spare ammonia water spraying port is arranged at the top of the inlet section pipe fitting.
5. The gas cross-pipe primary cooler of claim 4, wherein the heat exchange pipe is a corrugated pipe for increasing the unit heat exchange inside and outside the pipe.
6. The gas cross tube primary cooler according to claim 4, wherein the heat exchange tube is a corrugated tube, and the heat exchange tube and the scaling layer on the inner wall of the heat exchange tube have different linear expansion coefficients, and are affected by the temperature difference and the pressure difference between the inside and the outside of the tube, and the corrugated tube is deformed along the axial direction so that the scaling layer in the corrugated tube and the scaling layer outside the corrugated tube are separated.
7. The gas cross tube primary cooler of claim 4, wherein the heat exchange tube is a corrugated tube for changing the flow direction and flow speed of the liquid in the heat exchange tube.
8. The gas cross pipe primary cooler of claim 5, wherein the outlet section pipe fitting comprises a rectangular shell and a conical shell with a rectangular bottom surface as a round top, the bottom of the rectangular shell and the top of the conical shell are integrally formed, the gas outlet is arranged on the side wall of the rectangular shell, the mixed liquid outlet is arranged at the bottom of the conical shell, and the manhole is positioned on the side wall of the rectangular shell.
9. The gas cross-tube primary cooler of claim 6, wherein the main body portion is connected to the heat exchange tube assembly using flanges and fasteners.
10. The gas cross pipe primary cooler of claim 6, wherein the inlet section pipe fitting, the hot water section pipe fitting, the circulating water section pipe fitting, the refrigerating water section pipe fitting and the outlet section pipe fitting are all connected in a welded and sealed manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321775844.4U CN220685030U (en) | 2023-07-07 | 2023-07-07 | Gas horizontal pipe primary cooler with three-section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321775844.4U CN220685030U (en) | 2023-07-07 | 2023-07-07 | Gas horizontal pipe primary cooler with three-section structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220685030U true CN220685030U (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321775844.4U Active CN220685030U (en) | 2023-07-07 | 2023-07-07 | Gas horizontal pipe primary cooler with three-section structure |
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| Country | Link |
|---|---|
| CN (1) | CN220685030U (en) |
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2023
- 2023-07-07 CN CN202321775844.4U patent/CN220685030U/en active Active
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