CN109870046B - Ascending pipe heat exchanger - Google Patents
Ascending pipe heat exchanger Download PDFInfo
- Publication number
- CN109870046B CN109870046B CN201810147779.8A CN201810147779A CN109870046B CN 109870046 B CN109870046 B CN 109870046B CN 201810147779 A CN201810147779 A CN 201810147779A CN 109870046 B CN109870046 B CN 109870046B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- heat exchanger
- radial
- heat exchange
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001174 ascending effect Effects 0.000 title claims description 4
- 230000000630 rising effect Effects 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 40
- 230000005489 elastic deformation Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000571 coke Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009834 vaporization Methods 0.000 abstract description 4
- 230000008016 vaporization Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 15
- 238000004939 coking Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000002918 waste heat Substances 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000452 restraining effect Effects 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- -1 zirconia refractory ceramic fibers Chemical class 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to a rising pipe heat exchanger, which comprises a heat exchange coil, an inner pipe, a first sleeve, a second sleeve, an upper flange and a lower flange, wherein the inner pipe is connected with the heat exchange coil; the heat exchange coil is spirally wound on the outer side of the inner tube, a gas channel is arranged in the inner tube, the first sleeve is sleeved on the outer part of the heat exchange coil, and the second sleeve is sleeved on the outer part of the first sleeve; the inner tube, the first sleeve, the upper flange and the lower flange jointly enclose a first annular space for accommodating the heat exchange coil; the first sleeve, the second sleeve, the upper flange and the lower flange jointly enclose to form a heat insulation space. The utility model can effectively prevent the rising pipe heat exchanger from internal leakage, avoid the problem of heat exchange equipment damage caused by vaporization of water and incandescent coke due to the internal leakage, prolong the service life of the rising pipe heat exchanger and reduce the maintenance cost.
Description
Technical Field
The utility model relates to the technical field of waste heat recovery devices, in particular to a rising pipe heat exchanger.
Background
Coking production is a widely used method for reprocessing energy and recycling heat energy at present, and coke and coking gas are main energy products. The efficient recovery of waste heat resources generated in the coking process is one of the main ways of reducing the energy consumption of the coke ovens, and is also the main direction of establishing a green coking plant with resource conservation and environmental friendliness. The medium temperature waste heat of the coke oven raw gas accounts for about 36% of the whole coking process, and has a large utilization space. Therefore, the recovery and utilization of the waste heat of the high-temperature raw gas generated in the carbonization process of coal are the focus and hot spot of research in the coking field.
The rising pipe heat exchanger is main equipment for recovering waste heat in coking production, can be used for conveying raw gas and exchanging heat, and is used for recovering and utilizing the waste heat by absorbing the waste heat of the raw gas in the rising pipe. The common rising pipe heat exchanger in the prior art is a water jacket heat exchanger, and specifically comprises an inner pipe, an inner pipe sleeve, an upper flange, a lower flange and a heat exchange coil. The inner tube sleeve is sleeved outside the inner tube, the upper flange is fixed at the top ends of the inner tube and the inner tube sleeve, and the lower flange is fixed at the bottom ends of the inner tube and the inner tube sleeve. Raw gas flows in the inner pipe, and water is filled in an annular space formed by the inner pipe, the inner pipe sleeve, the upper flange and the lower flange to exchange heat with the raw gas flowing in the inner pipe.
In the prior art, the water jacket heat exchanger generally has only one jacket structure and lacks heat preservation components, so that the heat loss is more and the heat preservation effect is poor. And the steam can be generated in the heat exchange process, when the steam pressure of the steam reaches or exceeds 1.0MPa, the inner pipe is extremely easy to collapse and deform under the action of the steam, and even the inner pipe can be caused to leak water when serious. In addition, the coke oven raw gas contains corrosive gas such as hydrogen sulfide, has strong corrosiveness to the heat exchanger, and once the heat exchanger is corroded and perforated, water leakage is easily caused. The water and the incandescent coke are vaporized, the pressure in the coking furnace can be rapidly increased, and the coking furnace body is damaged. In the water jacket heat exchanger in the prior art, as the rising pipe heat exchanger flows in the inner pipe of the rising pipe heat exchanger in the operation process, water is filled in an annular space formed by the inner pipe, the inner pipe sleeve, the upper flange and the lower flange, and the rising pipe heat exchanger is used for exchanging heat of the raw gas flowing in the inner pipe. Therefore, the inner tube sleeve is easy to stretch and deform in the axial direction under a high-temperature environment, and the stretching and deformation are extremely easy to cause the problems of weld joint damage, heat exchange working medium internal leakage and the like of the inner tube sleeve. Finally, for the heat exchange coil in the rising pipe heat exchanger, the heat exchange coil works and operates for a long time under the high temperature condition, and the irregular vibration of vaporization of the heat exchange working medium is extremely easy to cause deformation of the heat exchange coil, so that equipment is damaged, and the service life is shortened.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art and solve the problems that a heat-exchange working medium leaks in a heat-exchange working medium easily, equipment is easy to damage, and the maintenance rate and the maintenance cost are high, the utility model discloses a rising pipe heat exchanger.
The utility model is realized by the following technical scheme:
a rising pipe heat exchanger comprises a heat exchange coil, an inner pipe, a first sleeve, a second sleeve, an upper flange and a lower flange; the heat exchange coil is spirally wound on the outer side of the inner tube, a gas channel is arranged in the inner tube, the first sleeve is sleeved on the outer part of the heat exchange coil, and the second sleeve is sleeved on the outer part of the first sleeve; the inner tube, the first sleeve, the upper flange and the lower flange jointly enclose a first annular space for accommodating the heat exchange coil; the first sleeve, the second sleeve, the upper flange and the lower flange jointly enclose to form a heat insulation space.
Further, the top ends of the inner tube, the first sleeve and the second sleeve are fixedly connected with the upper flange in a overlaying mode respectively, and the bottom ends of the inner tube, the first sleeve and the second sleeve are fixedly connected with the lower flange in a overlaying mode respectively.
Further, the bottom surfaces of the upper flange and the lower flange, which face one end of the heat exchange coil, are respectively provided with a first welding groove, a second welding groove and a third welding groove.
Further, the upper end and the lower end of the inner tube respectively extend into the first welding groove and are fixedly connected with the first welding groove to form a first annular gap; the upper end and the lower end of the first sleeve pipe extend into the second welding groove respectively and are fixedly connected with the second welding groove to form a second annular gap; the upper end and the lower end of the second sleeve pipe respectively extend into the third welding groove and are fixedly connected with the third welding groove to form a third annular gap.
Further, the sealing device also comprises a first leakage-proof device which is positioned at the joint of the inner pipe and the upper flange and is arranged around the outer periphery of the inner pipe, and a second leakage-proof device which is positioned at the joint of the inner pipe and the lower flange and is arranged around the outer periphery of the inner pipe.
Further, the first leakage preventing device and the second leakage preventing device respectively form a first leakage preventing space and a second leakage preventing space with the first annular gap in a surrounding mode.
Further, the rising pipe heat exchanger further comprises a leakage-proof layer arranged on the inner wall of the inner pipe.
Further, the first sleeve and/or the second sleeve are/is provided with a micro-deformation device with arc-shaped joints.
Further, the number of the arc-shaped sections is multiple, and two adjacent arc-shaped sections are connected with each other through a connecting section.
Further, at least one of an axial restraint assembly and/or a radial restraint assembly is disposed in the first annular space.
Further, the axial restraint assembly comprises a fixed frame and an axial wrap plate; one end of the fixing frame is fixedly connected with the flange, and the other end of the fixing frame is fixedly connected with the axial wrapping plate; the axial wrap plates are fixedly connected with the outer wall of the heat exchange coil.
Further, the device also comprises annular leakage-proof devices which respectively encircle the upper end and the lower end of the inner tube; the axial restraint assembly comprises a fixed frame and an axial wrapping plate; one end of the fixing frame is fixedly connected with the annular leakage-proof device, and the other end of the fixing frame is fixedly connected with the axial wrapping plate; the axial wrap plates are fixedly connected with the outer wall of the heat exchange coil.
Further, the radial constraint assembly comprises a radial constraint part and a radial wrapping plate which are fixedly connected with each other; the radial wrap plates are fixedly connected with the outer wall of the heat exchange coil.
Further, the radial constraint part is a hollow rectangular frame, and the number of the radial wrapping plates is two and the radial wrapping plates are respectively arranged on the inner side walls of the two opposite sides of the radial constraint part.
Further, the heat exchange coil comprises a restraint element coil and a limited elastic deformation coil which are arranged at intervals, and the radial wrap plate is only fixedly connected with the outer wall of the restraint element coil.
Further, a radial constraint assembly is arranged in the first annular space, and a circular hoop is arranged on the outer side wall of the radial constraint assembly.
Further, the heat-insulating heat exchanger further comprises at least one safety pipe, the safety pipe sequentially penetrates through the first sleeve, the heat-insulating space and the second sleeve, one end of the safety pipe stretches into the first annular space, and the other end of the safety pipe stretches out of the ascending pipe heat exchanger.
Further, the outer wall of the first sleeve is provided with a heat insulation part.
Compared with the prior art, the utility model has the advantages that:
the utility model can effectively prevent heat loss and waste and improve the heat preservation effect and heat exchange efficiency of the rising pipe heat exchanger;
the utility model can effectively prevent the rising pipe heat exchanger from internal leakage, and avoid the damage of heat exchange equipment caused by vaporization of water and incandescent coke due to the internal leakage;
the utility model can avoid the welding seam damage caused by the stretching and deformation of the sleeve in the axial direction under the high-temperature environment;
the utility model can avoid the deformation of the heat exchange coil caused by irregular vibration caused by vaporization of the heat exchange working medium;
the utility model improves the service life of the riser heat exchanger and reduces the maintenance cost.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the following brief description will be given to the accompanying drawings, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: a schematic cross-sectional view of example 1 of the present utility model;
fig. 2: a schematic cross-sectional view of embodiment 2 of the present utility model;
fig. 3: the cross-section schematic diagrams of the upper flange and the lower flange are provided;
fig. 4: a schematic cross-sectional view of embodiment 3 of the present utility model;
fig. 5: a schematic enlarged view of a micro-deformation device according to embodiment 3 of the present utility model
Fig. 6: the axial restraint assembly and the radial restraint assembly of embodiment 4 of the present utility model are schematic cross-sectional views;
fig. 7: a top view schematic of the axial restraint assembly and the radial restraint assembly of embodiment 4 of the present utility model;
fig. 8: a schematic cross-sectional view of a radial restraint assembly of embodiment 5 of the present utility model;
fig. 9: a schematic top view of the radial restraint assembly of embodiment 5 of the present utility model;
fig. 10: a schematic cross-sectional view of a radial restraint assembly of embodiment 6 of the present utility model;
fig. 11: a schematic cross-sectional view of a radial restraint assembly of embodiment 7 of the present utility model.
In order to further clarify the structure of the present utility model and the connection between the components, the following reference numerals are given and are illustrated:
the heat exchange coil 1, the inner tube 2, the first sleeve 3, the second sleeve 4, the upper flange 5, the lower flange 6, the first leakage preventing device 7, the first side plate 71, the first partition plate 72, the first leakage preventing space 73, the second leakage preventing device 8, the second side plate 81, the second partition plate 82, the second leakage preventing space 83, the first annular space 9, the leakage preventing layer 10, the welding groove 11, the first welding groove 111, the second welding groove 112, the third welding groove 113, the first annular gap (114), the second annular gap (115), the third annular gap (116), the heat insulating part 12, the heat preserving space 13, the micro deformation device 14, the arc-shaped joint 141, the connecting joint 142, the safety tube 15, the axial restraint assembly 16, the fixing frame 161, the axial wrapping plate 163, the radial restraint assembly 17, the circular hoop 171, the radial restraint part 172, the radial wrapping plate 173, the gas passage 19.
The technical scheme of the utility model can be more clearly understood and described by the description of the reference numerals in combination with the embodiment of the utility model.
Detailed Description
The rising pipe heat exchanger can be arranged between the root of the rising pipe and the bridge pipe tee joint and used as a straight pipe section of the rising pipe, wherein the usable part of the straight pipe section of the bridge pipe tee joint can also be designed into the structure of the rising pipe heat exchanger.
In order to make the technical means of the present utility model achieve the objects and effects easily understood, the following describes embodiments of the present utility model in detail with reference to the specific drawings.
It is to be noted that all terms used for directional and positional indication in the present utility model, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc. are merely used to explain the relative positional relationship, connection, etc. between the components in a particular state (as shown in the drawings), and are merely for convenience of description of the present utility model, and do not require that the present utility model must be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
As shown in fig. 1, the present embodiment provides a rising pipe heat exchanger, which comprises a heat exchange coil 1, an inner pipe 2, a first sleeve 3, a second sleeve 4, an upper flange 5 and a lower flange 6. The heat exchange coil 1 is spirally wound on the inner tube 2, and the heat exchange coil 1 adopts a high-pressure-resistant seamless alloy steel tube. In practical application, the heat exchange coil 1 with a proper pressure bearing level can be selected according to the steam pressure level required by a user, so that the pressure of the rising pipe heat exchanger can be regulated. The inside of the inner tube 2 is a gas channel 19, the first sleeve 3 is sleeved outside the heat exchange coil 1, the top ends of the inner tube 2 and the first sleeve 3 are fixed at the upper flange 5, the bottom ends are fixed at the lower flange 6, and the inner tube 2, the first sleeve 3, the upper flange 5 and the lower flange 6 jointly surround to form a first annular space 9 for accommodating the heat exchange coil 1. The material of the second sleeve 4 may be stainless steel, preventing mechanical shock. The second sleeve 4 is sleeved outside the first sleeve 3, the top end of the second sleeve is fixed at the upper flange 5, and the bottom end of the second sleeve is fixed at the lower flange 6; the second sleeve 4, the first sleeve 3, the upper flange 5 and the lower flange 6 together enclose a heat-insulating space 13. The top of inner tube 2, first sleeve pipe 3 and second sleeve pipe 4 respectively through the mode of build-up welding with go up flange 5 fixed connection, the bottom of inner tube 2, first sleeve pipe 3 and second sleeve pipe 4 respectively through the mode of build-up welding with lower flange 6 fixed connection. The heat insulation space 13 is filled with heat insulation materials, the heat insulation space 13 can prevent heat loss, the materials of the heat insulation space 13 can be zirconia refractory ceramic fibers for compaction and filling, and the thickness of the heat insulation space 13 is greater than or equal to 35mm. The inner wall of the inner tube 2 is provided with a leakage-proof layer 10. The leakage-proof layer 10 is a glass-phase ceramic coating and can play roles of high temperature resistance, corrosion resistance and coking resistance. The heat-insulating space 13 is filled with heat-insulating material, and the heat-insulating material is zirconia refractory ceramic fiber. The first annular space 9 is filled with a thermally conductive filler, which is a mixture of ceramic particles and/or stainless steel particles. The mixture of ceramic particles and stainless steel particles is selected as the heat-conducting filler, on one hand, because the mixture has high heat conductivity and is not easy to deteriorate, the heat of raw gas can be transmitted to the water in the heat exchange coil 1 through the heat-conducting filler, the heat transfer rate is improved, the heat exchange efficiency is improved, and on the other hand, the mixture is not easy to sinter into blocks under the high temperature condition, and a certain movable space is provided for the heat exchange coil 1
Because the raw gas temperature is higher, before water is introduced into the heat exchange coil 1, the rising pipe heat exchanger is in a dry burning state, and if water is introduced into the heat exchange coil 1 suddenly, the flange and the inner pipe can be cracked due to rapid cooling of welding seams. Thus, the rising pipe heat exchanger of the present embodiment further comprises annular leakage preventing means surrounding said inner pipe 2 and capable of sealing the first annular gap 114, the annular leakage preventing means comprising a first leakage preventing means 7 and a second leakage preventing means 8 arranged around the top and bottom ends of the inner pipe 2, respectively. The first leakage preventing means 7 and the second leakage preventing means 8 are of stainless steel material. The first leakage preventing means 7 includes a circular ring-shaped first partition plate 72 extending from the outer wall of the inner tube 2 in the radial direction and extending toward the first sleeve 3, and a cylindrical first side plate 71 surrounding the inner tube 2 in the axial direction and connecting the outer periphery of the first partition plate 72 with the upper flange 5, the first partition plate 72, the first side plate 71 and the upper flange 5 enclosing together a first leakage preventing space 73; the second leakage preventing means 8 includes a circular ring-shaped second partition 82 extending from the outer wall of the inner tube 2 in the radial direction and toward the first sleeve 3, and a cylindrical second side plate 81 surrounding the inner tube 2 in the axial direction and connecting the outer periphery of the second partition 82 with the lower flange 6, the second partition 82, the second side plate 81 and the lower flange 6 enclosing together a second leakage preventing space 83. The first and second leakage preventing spaces 73 and 83 are filled with a leakage preventing material. The leakproof material is silicate. Therefore, the welding seam can be protected, and the phenomenon that the welding seam cracks due to quenching is prevented.
The rising pipe heat exchanger of this embodiment further includes two safety pipes 15 respectively provided at one end close to the upper flange 5 and one end close to the lower flange 6, the safety pipes 15 being provided in a radial direction, penetrating the first sleeve 3, the heat-retaining space 10 and the second sleeve 4, one end extending into the first annular space 9, and the other end extending out of the rising pipe heat exchanger. The safety tube 15 is internally filled with a flexible fibrous material. When the coil pipe is damaged, working medium flows out through the safety pipe orifice and cannot be accumulated in the jacket, so that the safety of the jacket is ensured.
The rising pipe heat exchanger of the present embodiment is provided with an axial restraint assembly 16 and a radial restraint assembly 17 in the first annular space 9. The axial restraint assembly 16 includes a mount 161 and an axial wrap 163; one end of the fixing frame 161 is fixedly connected with the first leakage preventing device 7 or the second leakage preventing device 8, the other end of the fixing frame 161 is fixedly connected with the axial wrapping plate 163, and the fixing frame 161 is fixed in a pipe clamp mode and a welding mode; the axial wrap 163 is fixedly connected to the outer wall of the heat exchange coil 1. The radial restraint assembly 17 includes a radial restraint 172 and a radial wrap 173 fixedly coupled to one another. The radial wrapping plate 173 is disposed at one end of the radial constraint portion 172 near the inner tube 2 and is fixedly connected to the outer wall of the heat exchange coil 1, and the radial wrapping plate 173 partially wraps the outer periphery of the heat exchange coil 1. The heat exchange coil 1 comprises a restraint element coil and a limited elastic deformation coil, the restraint element coil and the limited elastic deformation coil are mutually spaced, a layer of limited elastic deformation coil is spaced between two layers of restraint element coils, the radial wrapping plate 173 is only fixedly connected with the outer wall of the restraint element coil, and the radial wrapping plate 173 is not arranged on the outer wall of the limited elastic deformation coil. A gap exists between the top end of the radial restraining part 172 and the upper flange 5; a gap exists between the bottom end of the radial constraint 172 and the lower flange 6. By the design, on one hand, the heat exchange coil 1 can be prevented from moving, the structural stability of the heat exchange coil 1 is guaranteed, and on the other hand, when water is just introduced into the heat exchange coil 1, the heat exchange coil 1 can be subjected to limited elastic deformation in a certain movable space when subjected to huge stress exerted by water, and the heat exchange coil 1 is more beneficial to being protected.
Example 2
As shown in fig. 2, the present embodiment provides a rising pipe heat exchanger. This embodiment differs from embodiment 1 in that:
the first and second leakage preventing spaces 73 and 83 are filled with ceramic particles.
The outer wall of the first sleeve 3 is provided with a heat insulation part 12, and the heat insulation part 12 is a heat radiation shielding coating applied by adopting a high-temperature spraying mode.
As shown in fig. 2 and 3, the upper flange 5 and the lower flange 6 are provided with welding grooves 11, respectively, and the welding grooves 11 include a first welding groove 111, a second welding groove 112, and a third welding groove 113 having a trapezoid shape. The upper and lower ends of the inner tube 2 form a first annular gap 114 with the first welding groove 111; the upper and lower ends of the first sleeve 3 and the second welding groove 112 form a second annular gap 115; the upper and lower ends of the second sleeve 4 form a third annular gap 116 with the third welding groove 113. During assembly, the first annular gap 114, the second annular gap 115 and the third annular gap 116 are filled with solder by means of build-up welding, so that a seamless connection of the inner tube 2 with the flange 5 and the flange 6 is ensured.
The first sleeve 3 and the second sleeve 4 are provided with micro-deformation devices 14, the micro-deformation devices 14 comprise arc-shaped sections 141, and the arc-shaped sections 141 are protruded in the circumferential direction far away from the central shaft of the riser heat exchanger along the radial direction. The micro-deformation device 14 is a heat resistant alloy steel material. The micro-deformation device 14 avoids the problems of weld joint damage and heat exchange working medium internal leakage caused by the stretching and deformation of the sleeve in the axial direction under the high-temperature environment, prolongs the service life of the riser heat exchanger, and reduces the maintenance cost.
The outer periphery of the radial restraint assembly 17 is provided with a circular hoop 171, and the circular hoop 171 surrounds the radial restraint assembly 17 and is fixedly connected with the side wall of one end of the radial restraint assembly 17 away from the central shaft of the riser heat exchanger.
Example 3
As shown in fig. 4, the present embodiment provides a rising pipe heat exchanger. This embodiment differs from embodiment 2 in that:
the first and second leakage preventing spaces 73 and 83 are filled with a ceramic particle and stainless steel particle mixture.
The first sleeve 3 and the second sleeve 4 have a plurality of arc-shaped sections 141, and as shown in fig. 5, two adjacent arc-shaped sections 141 are connected to each other by a connecting section 142.
The present embodiment is provided with only radial restraint assemblies 17 and no axial restraint assemblies 16. The top end of the radial constraint part 172 is fixedly connected with the first leakage preventing device 7; the bottom end of the radial restraining part 172 is fixedly connected with the second leakage preventing device 8.
Example 4
As shown in fig. 6, the present embodiment provides an axial restraint assembly 16 and a radial restraint assembly 17 disposed about the heat exchange coil 1 of the riser heat exchanger.
The axial restraint assembly 16 includes a mount 161 and an axial wrap 163; one end of the fixing frame 161 may be directly fixedly connected to the flange, or may be connected to any one of the first leakage preventing device 7 and the second leakage preventing device 8. The other end of the fixing frame 161 is fixedly connected with an axial wrapping plate 163; the axial wrap 163 is fixedly connected to the outer wall of the heat exchange coil 1. The top end and the bottom end of the rising pipe heat exchanger are respectively provided with an axial restraint assembly 16, and an axial wrap plate 163 of the axial restraint assembly 16 close to the top end of the rising pipe heat exchanger is fixedly connected with the outer wall of the heat exchange coil 1 positioned on the top layer; the axial wrap plates 163 of the axial restraint assembly 16 near the bottom end of the riser heat exchanger are fixedly connected to the outer wall of the underlying heat exchange coil 1.
The radial restraint assembly 17 includes a radial restraint portion 172 and a radial wrap plate 173 fixedly connected to each other; the radial constraint part 172 is arranged along the axial direction, and the radial wrapping plate 173 is arranged at one end of the radial constraint part 172 close to the inner tube 2 and is fixedly connected with the outer wall of the heat exchange coil 1, and the radial wrapping plate 173 partially wraps the outer periphery of the heat exchange coil 1. As shown in fig. 7, the number of radial restraint assemblies 17 is two, and the radial restraint assemblies are arranged oppositely and are respectively arranged at two ends of the central shaft of the riser heat exchanger. The radial constraint 172 is shaped as a long plate with an arc that curves in a radial direction up to the central axis of the riser heat exchanger.
A gap exists between the top end of the radial restraining part 172 and the upper flange 5; a gap exists between the bottom end of the radial constraint 172 and the lower flange 6. The number of the radial restraining portions 172 is three, and the three radial restraining portions 172 are arranged in sequence in the axial direction with a gap therebetween. The outer periphery of the radial restraint assembly 17 is provided with a circular hoop 171, and the circular hoop 171 surrounds the radial restraint assembly 17 and is fixedly connected with the side wall of one end of the radial restraint assembly 17 away from the central shaft of the riser heat exchanger.
Example 5
As shown in fig. 8, the present embodiment provides an embodiment in which only the radial restraint assembly 17 is provided around the heat exchange coil 1, and no axial restraint assembly 16 is provided.
The radial restraint assembly 17 includes a radial restraint portion 172 and a radial wrap plate 173 fixedly connected to each other; the radial constraint part 172 is arranged along the axial direction, and the radial wrapping plate 173 is arranged at one end of the radial constraint part 172 close to the inner tube 2 and is fixedly connected with the outer wall of the heat exchange coil 1, and the radial wrapping plate 173 partially wraps the outer periphery of the heat exchange coil 1. As shown in fig. 9, the number of radial restraint assemblies 17 is two, and the radial restraint assemblies are arranged oppositely and are respectively arranged at two ends of the central shaft of the riser heat exchanger. The radial constraint 172 is circular in shape. The outer periphery of the radial restraint assembly 17 is provided with a circular hoop 171, and the circular hoop 171 surrounds the radial restraint assembly 17 and is fixedly connected with the side wall of one end of the radial restraint assembly 17 away from the central shaft of the riser heat exchanger.
Example 6
As shown in fig. 10, this embodiment provides a radial restraint assembly 17 disposed about the heat exchange coil 1 of the riser heat exchanger.
The radial restraint assembly 17 includes a radial restraint 172 and a radial wrap 173 fixedly coupled to one another. The radial constraint part 172 is arranged along the axial direction, and the radial wrapping plate 173 is arranged at one end of the radial constraint part 172 close to the inner tube 2 and is fixedly connected with the outer wall of the heat exchange coil 1, and the radial wrapping plate 173 wraps and surrounds the outer periphery of the heat exchange coil 1. The radial restraint assembly 17 may extend in the axial direction directly to the upper flange 5 and the lower flange 6 or directly to the first leakage prevention device 7 and the second leakage prevention device 8. The outer periphery of the radial restraint assembly 17 is provided with a circular hoop 171, and the circular hoop 171 surrounds the radial restraint assembly 17 and is fixedly connected with the side wall of one end of the radial restraint assembly 17 away from the central shaft of the riser heat exchanger.
Example 7
As shown in fig. 11, this embodiment provides a radial restraint assembly 17 disposed about the heat exchange coil 1 of the riser heat exchanger.
The radial restraint assembly 17 includes a radial restraint 172 and a radial wrap 173 fixedly coupled to one another. The radial constraint part 172 is a rectangular frame arranged along the axial direction, and the number of the radial wrapping plates 173 is two, and the radial wrapping plates 173 are respectively arranged on the inner walls of the two sides of the radial constraint part 172 along the axial direction and are fixedly connected with the outer wall of the heat exchange coil 1. The heat exchange coil 1 comprises a restraint element coil and a limited elastic deformation coil, and two layers of limited elastic deformation coils are arranged between two layers of restraint element coils at intervals. The radial wrap 173 is fixedly attached to the outer wall of the restraint unit coil.
It should be apparent that the above-described embodiments are only some, but not all, embodiments of the present utility model. Based on the embodiments of the present utility model, various changes, modifications, substitutions and improvements can be made by those skilled in the art without making any inventive effort, and are intended to be included in the scope of the present utility model.
Claims (15)
1. A riser heat exchanger, characterized in that: the heat exchange device comprises a heat exchange coil (1), an inner pipe (2), a first sleeve (3), a second sleeve (4), an upper flange (5) and a lower flange (6); the heat exchange coil (1) is spirally wound on the outer side of the inner tube (2), a gas channel (19) is arranged in the inner tube (2), the first sleeve (3) is sleeved on the outer portion of the heat exchange coil (1), and the second sleeve (4) is sleeved on the outer portion of the first sleeve (3); the inner tube (2), the first sleeve (3), the upper flange (5) and the lower flange (6) jointly enclose a first annular space (9) for accommodating the heat exchange coil (1); the first sleeve (3), the second sleeve (4), the upper flange (5) and the lower flange (6) jointly surround to form a heat insulation space (13); the first sleeve (3) and/or the second sleeve (4) are/is provided with a micro-deformation device (14) with an arc-shaped section (141); -an axial constraint assembly (16) is provided in said first annular space (9); the rising pipe heat exchanger also comprises annular leakage-proof devices which respectively encircle the upper end and the lower end of the inner pipe (2); the axial restraint assembly (16) comprises a fixed frame (161) and an axial wrap plate (163); one end of the fixing frame (161) is fixedly connected with the annular leakage-proof device, and the other end of the fixing frame is fixedly connected with the axial wrapping plate (163); the axial wrap plates (163) are fixedly connected with the outer wall of the heat exchange coil (1).
2. A riser heat exchanger according to claim 1, wherein: the top of inner tube (2), first sleeve pipe (3) and second sleeve pipe (4) respectively through the mode of build-up welding with go up flange (5) fixed connection, the bottom of inner tube (2), first sleeve pipe (3) and second sleeve pipe (4) respectively through the mode of build-up welding with lower flange (6) fixed connection.
3. A riser heat exchanger according to claim 2, wherein: the bottom surfaces of the upper flange (5) and the lower flange (6) facing one end of the heat exchange coil (1) are respectively provided with a first welding groove (111), a second welding groove (112) and a third welding groove (113).
4. A riser heat exchanger according to claim 3, wherein: the upper end and the lower end of the inner tube (2) respectively extend into the first welding groove (111) and are fixedly connected with the first welding groove (111) to form a first annular gap (114); the upper end and the lower end of the first sleeve (3) respectively extend into the second welding groove (112) and are fixedly connected with the second welding groove (112) to form a second annular gap (115); the upper end and the lower end of the second sleeve (4) respectively extend into the third welding groove (113) and are fixedly connected with the third welding groove (113) to form a third annular gap (116).
5. The riser heat exchanger of claim 4 wherein: the sealing device further comprises a first leakage preventing device (7) which is positioned at the joint of the inner tube (2) and the upper flange (5) and surrounds the outer periphery of the inner tube (2), and a second leakage preventing device (8) which is positioned at the joint of the inner tube (2) and the lower flange (6) and surrounds the outer periphery of the inner tube (2).
6. A riser heat exchanger according to claim 5, wherein: the first leakage preventing device (7) and the second leakage preventing device (8) respectively form a first leakage preventing space (73) and a second leakage preventing space (83) by surrounding with the first annular gap (114).
7. A riser heat exchanger according to claim 1, wherein: the rising pipe heat exchanger further comprises a leakage-proof layer (10) arranged on the inner wall of the inner pipe (2).
8. A riser heat exchanger according to claim 1, wherein: the number of the arc-shaped sections (141) is a plurality, and two adjacent arc-shaped sections (141) are connected with each other through a connecting section (142).
9. A riser heat exchanger according to claim 1, wherein: the axial restraint assembly (16) comprises a fixed frame (161) and an axial wrap plate (163); one end of the fixing frame (161) is fixedly connected with the flange, and the other end of the fixing frame is fixedly connected with the axial wrapping plate (163); the axial wrap plates (163) are fixedly connected with the outer wall of the heat exchange coil (1).
10. A riser heat exchanger according to claim 1, wherein: a radial constraint assembly (17) is arranged in the first annular space (9), and the radial constraint assembly (17) comprises a radial constraint part (172) and a radial wrapping plate (173) which are fixedly connected with each other; the radial wrap plates (173) are fixedly connected with the outer wall of the heat exchange coil (1).
11. The riser heat exchanger of claim 10, wherein: the radial constraint part (172) is a hollow rectangular frame, and the number of the radial wrapping plates (173) is two, and the radial wrapping plates are respectively arranged on the inner side walls of the two opposite sides of the radial constraint part (172).
12. A riser heat exchanger according to claim 11, wherein: the heat exchange coil (1) comprises a restraint element coil and a limited elastic deformation coil which are arranged at intervals, and the radial wrap plate (173) is only fixedly connected with the outer wall of the restraint element coil.
13. A riser heat exchanger according to claim 1, wherein: a radial restraint assembly (17) is arranged in the first annular space (9), and a circular hoop (171) is arranged on the outer side wall of the radial restraint assembly (17).
14. A riser heat exchanger according to claim 1, wherein: the heat-insulating heat exchanger further comprises at least one safety tube (15), the safety tube (15) sequentially penetrates through the first sleeve (3), the heat-insulating space (13) and the second sleeve (4), one end of the safety tube extends into the first annular space (9), and the other end of the safety tube extends out of the ascending tube heat exchanger.
15. A riser heat exchanger according to claim 1, wherein: the outer wall of the first sleeve (3) is provided with a heat insulation part (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251291 | 2017-12-01 | ||
| CN2017112512911 | 2017-12-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109870046A CN109870046A (en) | 2019-06-11 |
| CN109870046B true CN109870046B (en) | 2024-01-19 |
Family
ID=63767686
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254089.8U Active CN207991325U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
| CN201810147779.8A Active CN109870046B (en) | 2017-12-01 | 2018-02-12 | Ascending pipe heat exchanger |
| CN201820254817.5U Active CN207976018U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
| CN201820252171.7U Active CN207991326U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254089.8U Active CN207991325U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254817.5U Active CN207976018U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
| CN201820252171.7U Active CN207991326U (en) | 2017-12-01 | 2018-02-12 | A kind of rising heat exchange of heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN207991325U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207991325U (en) * | 2017-12-01 | 2018-10-19 | 赫普科技发展（北京）有限公司 | A kind of rising heat exchange of heat pipe |
| CN109539217A (en) * | 2018-12-19 | 2019-03-29 | 临涣焦化股份有限公司 | A kind of Riser waste heat recovery device for coke oven |
| FR3101402B1 (en) * | 2019-09-26 | 2022-05-13 | Sermeta | Condensing heat exchanger |
| CN111964484B (en) * | 2020-08-27 | 2021-10-22 | 中国平煤神马能源化工集团有限责任公司 | Laminar flow eddy current type ascension pipe raw coke oven gas heat exchanger sprayed with ceramic black materials |
| CN113790625B (en) * | 2021-09-06 | 2024-02-13 | 无锡米尔环保科技有限公司 | Stable heat exchange system of chlorine dioxide generator and substrate preparation method thereof |
| CN114837616B (en) * | 2022-06-10 | 2023-11-03 | 西南石油大学 | Heating device for prevent oil pipe wax deposition of oil production well |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613993A (en) * | 1984-06-15 | 1986-01-09 | Tokyo Electric Power Co Inc:The | Ice making type heat exchanger for heat accumulating tank for room cooling and heating |
| CN1215468A (en) * | 1996-03-29 | 1999-04-28 | 三井造船株式会社 | High temp. air heater and waste treatment equipment |
| US6076597A (en) * | 1997-12-31 | 2000-06-20 | Flowserve Management Company | Helical coil heat exchanger with removable end plates |
| CN201100834Y (en) * | 2007-07-31 | 2008-08-13 | 邹德升 | A confused flow heat exchanger |
| CN101240989A (en) * | 2007-02-09 | 2008-08-13 | 宋小平 | Novel pipe shell type double shell pass spiral baffle heat exchanger |
| WO2011083911A2 (en) * | 2010-01-07 | 2011-07-14 | 주식회사 경동나비엔 | Heat exchanger |
| CN103436272A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | Ascending pipe heat exchange device for raw gas of coke oven |
| CN105043117A (en) * | 2015-07-13 | 2015-11-11 | 武汉钢铁(集团)公司 | Coke oven ascension pipe raw gas evaporative cooling device and preparation method thereof |
| CN105135398A (en) * | 2015-09-30 | 2015-12-09 | 上海宝钢节能环保技术有限公司 | Cokery corrosion-resistant anti-coking raw gas sensible heat recovery device and system |
| CN205024154U (en) * | 2015-09-30 | 2016-02-10 | 上海宝钢节能环保技术有限公司 | Telescopic coke oven crude gas sensible heat recovery device of spiral coil |
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN106244173A (en) * | 2016-08-31 | 2016-12-21 | 马庆磊 | Coke oven tedge heat exchanger |
| CN106767021A (en) * | 2017-02-28 | 2017-05-31 | 中冶华天工程技术有限公司 | Raw coke over gas riser heat exchanger |
| CN107236553A (en) * | 2017-07-21 | 2017-10-10 | 中冶华天工程技术有限公司 | Raw coke over gas riser evaporator |
| CN207976018U (en) * | 2017-12-01 | 2018-10-16 | 赫普科技发展（北京）有限公司 | A kind of rising heat exchange of heat pipe |
-
2018
- 2018-02-12 CN CN201820254089.8U patent/CN207991325U/en active Active
- 2018-02-12 CN CN201810147779.8A patent/CN109870046B/en active Active
- 2018-02-12 CN CN201820254817.5U patent/CN207976018U/en active Active
- 2018-02-12 CN CN201820252171.7U patent/CN207991326U/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613993A (en) * | 1984-06-15 | 1986-01-09 | Tokyo Electric Power Co Inc:The | Ice making type heat exchanger for heat accumulating tank for room cooling and heating |
| CN1215468A (en) * | 1996-03-29 | 1999-04-28 | 三井造船株式会社 | High temp. air heater and waste treatment equipment |
| US6076597A (en) * | 1997-12-31 | 2000-06-20 | Flowserve Management Company | Helical coil heat exchanger with removable end plates |
| CN101240989A (en) * | 2007-02-09 | 2008-08-13 | 宋小平 | Novel pipe shell type double shell pass spiral baffle heat exchanger |
| CN201100834Y (en) * | 2007-07-31 | 2008-08-13 | 邹德升 | A confused flow heat exchanger |
| WO2011083911A2 (en) * | 2010-01-07 | 2011-07-14 | 주식회사 경동나비엔 | Heat exchanger |
| CN103436272A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | Ascending pipe heat exchange device for raw gas of coke oven |
| CN105043117A (en) * | 2015-07-13 | 2015-11-11 | 武汉钢铁(集团)公司 | Coke oven ascension pipe raw gas evaporative cooling device and preparation method thereof |
| CN105135398A (en) * | 2015-09-30 | 2015-12-09 | 上海宝钢节能环保技术有限公司 | Cokery corrosion-resistant anti-coking raw gas sensible heat recovery device and system |
| CN205024154U (en) * | 2015-09-30 | 2016-02-10 | 上海宝钢节能环保技术有限公司 | Telescopic coke oven crude gas sensible heat recovery device of spiral coil |
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN106244173A (en) * | 2016-08-31 | 2016-12-21 | 马庆磊 | Coke oven tedge heat exchanger |
| CN106767021A (en) * | 2017-02-28 | 2017-05-31 | 中冶华天工程技术有限公司 | Raw coke over gas riser heat exchanger |
| CN107236553A (en) * | 2017-07-21 | 2017-10-10 | 中冶华天工程技术有限公司 | Raw coke over gas riser evaporator |
| CN207976018U (en) * | 2017-12-01 | 2018-10-16 | 赫普科技发展（北京）有限公司 | A kind of rising heat exchange of heat pipe |
| CN207991325U (en) * | 2017-12-01 | 2018-10-19 | 赫普科技发展（北京）有限公司 | A kind of rising heat exchange of heat pipe |
| CN207991326U (en) * | 2017-12-01 | 2018-10-19 | 赫普科技发展（北京）有限公司 | A kind of rising heat exchange of heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207991326U (en) | 2018-10-19 |
| CN109870046A (en) | 2019-06-11 |
| CN207976018U (en) | 2018-10-16 |
| CN207991325U (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109870046B (en) | Ascending pipe heat exchanger | |
| CN103557514B (en) | Box type high-voltage heater | |
| CN105043117A (en) | Coke oven ascension pipe raw gas evaporative cooling device and preparation method thereof | |
| CN102976312B (en) | Heat exchanger structure capable of prolonging service life of calcined coke heat exchanger | |
| CN112533311B (en) | Electromagnetic induction heating device for obtaining high-temperature rare gas | |
| CN206637838U (en) | A kind of electric-heating container for being used to obtain HTHP air | |
| CN213208719U (en) | Sleeve type heat exchanger for recovering waste heat of ascending pipe of coke oven | |
| CN107702340B (en) | Method for supplying hot water and/or steam by double-layer spiral coil heating device | |
| CN103148731B (en) | Improved tube type heat exchanger tube box | |
| CN108467737A (en) | A kind of spiral coil conduction-type raw coke oven gas waste heat recovery apparatus | |
| CN106057257A (en) | Nuclear power plant containment cooling system | |
| CN108796154B (en) | Blast furnace ironmaking equipment with high-sealing furnace bottom | |
| CN107400523B (en) | Efficient heat conduction waste heat recovery system for coke oven ascending pipe | |
| CN207047151U (en) | A kind of coke oven coke oven uprising tube high-efficiency heat conduction residual neat recovering system | |
| CN208671732U (en) | A kind of band fin coal oven dithio-gas heat recovering device | |
| CN208169709U (en) | A kind of cannula structure that can reduce the temperature difference | |
| CN206054983U (en) | Self-cooled high temperature high voltage resistant flexible pipe | |
| CN206109435U (en) | Zero clearance cooling structure | |
| CN202708446U (en) | Externally water-cooled and internally insulated high-pressure high-temperature expansion joint | |
| CN207763540U (en) | A kind of heat exchanger of good effect of heat exchange | |
| CN101943298A (en) | Vacuum composite delivery pipe and connecting structure | |
| CN219606279U (en) | High-temperature-resistant stainless steel welded pipe for fluid pipeline | |
| CN216479474U (en) | High-temperature-resistant jacket flange | |
| CN215337765U (en) | Casting buried pipe type low-stress high-efficiency heat exchange device | |
| CN117450499B (en) | Composite riser superheater and application method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |