CN212119941U - Heat transfer system of shift converter - Google Patents
Heat transfer system of shift converter Download PDFInfo
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- CN212119941U CN212119941U CN202020371406.1U CN202020371406U CN212119941U CN 212119941 U CN212119941 U CN 212119941U CN 202020371406 U CN202020371406 U CN 202020371406U CN 212119941 U CN212119941 U CN 212119941U
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- shift converter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 abstract description 47
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model relates to a change stove heat transfer system, including setting up a large amount of heat exchange tubes between distributor and central discharge outside, a large amount of heat exchange tubes use central discharge to become concentric circles form and arrange as the center, form a plurality of heat transfer tube circles, each circle heat exchange tube periphery is provided with a plurality of holding rings of arranging from top to bottom, be connected with the sleeve on the inner wall of arbitrary holding ring, the sleeve sets up along the heat exchange tube axial, every heat exchange tube is pegged graft in corresponding the sleeve, through a plurality of connecting plate interconnect between the two adjacent rings, interval between the two adjacent heat exchange tubes of arbitrary circles of fixed, the upper end of all heat exchange tubes collects a plurality of and goes up the collection case, the lower extreme of all heat exchange tubes collects a plurality of and collects the case down, be provided with first interface on each collection case, be provided with the second interface on each collection case down. The utility model discloses the reaction temperature that enables whole catalyst bed is balanced, improves shift converter work efficiency, improves product gas quality.
Description
The technical field is as follows:
the utility model belongs to the technical field of the change over stove, concretely relates to change over stove moves thermal system.
Background art:
the conversion furnace is composed of a shell, an outer distributor positioned in the shell and a central gas collecting pipe positioned in the outer distributor, wherein a process gas buffer cavity is formed between the outer shell and the outer distributor, a catalysis cavity is formed between the outer distributor and the central gas collecting pipe, the shell is provided with a gas inlet communicated with the buffer cavity, a gas outlet communicated with the central gas collecting pipe, a feed inlet and a discharge outlet communicated with the catalysis cavity, a catalyst is filled in the catalysis cavity to form a catalyst layer, process gas enters the buffer cavity from the gas inlet and is diffused to the catalyst layer through the outer distributor to generate product gas through catalytic reaction, and the product gas flows into the central gas collecting pipe and is discharged and collected through the gas outlet.
The catalyst and the process gas can release a large amount of heat energy when reacting, so that the working temperature of the shift converter rises, and potential safety hazards of explosion or damage of equipment exist, therefore, the reaction temperature of the catalyst layer needs to be controlled, the temperature rise of the catalyst layer is avoided from being too high.
The invention discloses a double-ball cavity controllable heat transfer conversion reactor and a CO reaction method thereof (patent number: ZL 201610113609.9), which discloses a heat transfer system, wherein double-ball cavities arranged up and down are adopted for collecting water, heat exchange pipes distributed in a catalyst layer are adopted for communicating the double-ball cavities, so that cooling water flows between the catalyst layers to take away the heat of the catalyst layers, and the temperature of the catalyst layers is reduced. This structure has some problems in actual operation, discovery in actual operation, because the shift converter furnace body is high, after the heat exchange tube packed the catalyst under no support fixed state, the heat exchange tube appeared the biasing in the catalyst layer, the heat exchange tube distributes unevenly, it is inhomogeneous to lead to the cooling effect of heat transfer system to the catalyst layer, each region of catalyst layer has great difference in temperature, cause the heat transfer system energy consumption high, shift converter catalytic efficiency can not obtain full play, process gas proportion is high in the product gas, product gas quality is difficult to improve.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is: the utility model provides a shift converter moves heat system, this system stable in structure is reliable, the heat exchange tube distributes rationally, the clearance is clear, reduced effectively and moved the heat system and filled the unfavorable factor that causes to the catalyst, make the catalyst can fully, evenly fill whole catalyst layer, control the reaction temperature on whole catalyst layer simultaneously, make the reaction temperature on whole catalyst layer balanced, eliminate the problem that local high temperature leads to the whole catalytic efficiency of shift converter to reduce, improve shift converter work efficiency, improve product gas quality.
In order to solve the technical problem, the utility model discloses a technical scheme is: a heat transfer system of a shift converter comprises a plurality of heat exchange tubes arranged between an outer distributor and a central gas collecting tube, wherein the heat exchange tubes are all arranged in parallel to the axial direction of the central gas collecting tube and are arranged in a concentric circle shape by taking the central gas collecting tube as a center to form a plurality of heat exchange tube rings, a plurality of positioning rings which are sequentially arranged from top to bottom are arranged at the periphery of each heat exchange tube ring, a sleeve which corresponds to the heat exchange tube adjacent to the inner side of each positioning ring in a one-to-one correspondence mode is connected to the inner wall of any positioning ring, the sleeve is axially arranged along the heat exchange tubes, each heat exchange tube is inserted into the corresponding sleeve to realize transverse positioning, the two adjacent positioning rings are mutually connected through a plurality of connecting plates, two ends of any connecting plate are respectively connected with the sleeve positioned at an outer ring and the positioning ring positioned at an inner ring to fix the space between any two adjacent heat exchange tubes, each upper header is provided with a first interface, and each lower header is provided with a second interface.
As a preferred scheme, all the heat exchange tubes are divided into a plurality of concentric annular regions from the inner ring to the outer ring, the intervals among the heat exchange tubes in each region are equal, the intervals among the heat exchange tubes in the peripheral region are smaller than the intervals among the heat exchange tubes in the adjacent region at the inner side, and the distribution density of the heat exchange tubes is gradually increased from the inner region to the peripheral region.
As a preferable scheme, the distance between two adjacent circles of heat exchange tubes is gradually reduced from the inner circle to the outer circle.
As a preferred scheme, two ends of any heat exchange tube are bent, so that the whole heat exchange tube is in a [ -shape.
Preferably, the sleeve is a slotted tube.
Preferably, the connecting plate is vertically arranged.
As a preferred scheme, the number of the upper collecting box and the number of the lower collecting box are respectively one, the upper collecting box comprises a first straight cylinder body, a hemispherical lower end socket connected to the lower end of the first straight cylinder body and a conical cylinder connected to the upper end of the first straight cylinder body, the diameter of an upper opening of the conical cylinder is smaller than that of a lower opening, the upper opening of the conical cylinder is connected with a drain pipe, and the upper end of the drain pipe is provided with a first connector; the lower collection box comprises a second straight cylinder, a hemispherical upper end enclosure connected to the upper end of the second straight cylinder and a lower bottom cover connected to the lower end of the second straight cylinder, the second interface is arranged on the lower bottom cover and is connected with a water inlet joint; the upper end of each heat exchange tube is respectively communicated with the hemispherical lower end enclosure and the first straight barrel, and the lower end of each heat exchange tube is respectively communicated with the hemispherical upper end enclosure and the second straight barrel.
The utility model has the advantages that: the utility model discloses a carry out special mode of arranging and location structure to the heat transfer pipe, guaranteed the distribution rationality and the stability of heat exchange tube, eliminate the heat exchange tube and produce unordered deformation under the state of being heated, cause the inhomogeneous problem of cooling effect to the catalyst layer, simultaneously, reasonable location structure has ensured the clearance between the heat exchange tube, ensures that the catalyst loads the effect, promotes the promotion of transform stove catalytic effect, the improvement of product gas quality.
The utility model discloses it is regional further through falling into a plurality of annular with the heat exchange tube from inside to outside, interval distance to each circle heat exchange tube in the different regions optimizes the processing, according to the reaction rate curve of technology gas in the catalyst layer, calorific capacity curve, the heat exchange tube distribution of different density is carried out pertinence, the calorific capacity that makes the catalyst layer in each region corresponds with heat exchange tube quantity, thereby realize that each regional catalyst layer operating temperature tends to unanimity, can improve system gas efficiency like this furthest, also can improve product gas quality.
The utility model discloses further reduce the interval between the adjacent two rings of heat exchange tubes from the center to the periphery gradually to the change of the catalytic reaction efficiency of cooperation technology gas, thereby realize that whole catalyst bed operating temperature tends to unanimity, improve system gas efficiency, improve product gas quality.
The utility model discloses a special upper header and lower header make, upper header and lower header have more areas of connecting the heat exchange tube to can effectively increase heat exchange tube quantity, further realize high-efficient control shift converter catalyst layer operating temperature's technical target, improve shift converter's job stabilization nature and catalytic efficiency.
Description of the drawings:
the following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
fig. 4 is a cross-sectional view taken along line C-C in fig. 3.
In fig. 1 to 4: 1. the gas-liquid separator comprises an outer distributor, 2, a central gas collecting pipe, 3, a heat exchange pipe, 4, a positioning ring, 5, a sleeve, 6, a connecting plate, 7, an upper collecting box, 701, a first straight cylinder body, 702, a hemispherical lower end socket, 703, a conical cylinder, 704, a drain pipe, 8, a lower collecting box, 801, a second straight cylinder body, 802, a hemispherical upper end socket, 803, a lower bottom cover, 9, a first connector, 10, a second connector, 11 and a water inlet connector.
The specific implementation mode is as follows:
the following describes in detail a specific embodiment of the present invention with reference to the drawings.
The heat transfer system of the shift converter shown in fig. 1-4 comprises a plurality of heat exchange tubes 3 arranged between an outer distributor 1 and a central gas collecting tube 2, wherein the heat exchange tubes 3 are all arranged in parallel with the axial direction of the central gas collecting tube 2 and are concentrically arranged by taking the central gas collecting tube 2 as the center to form a plurality of heat exchange tube rings, a plurality of positioning rings 4 which are sequentially arranged up and down are arranged at the periphery of each heat exchange tube 3, sleeves 5 which correspond to the heat exchange tubes 3 adjacent to the inner side of each positioning ring 4 one by one are connected on the inner wall of any positioning ring 4, the sleeves 5 are axially arranged along the heat exchange tubes 3, each heat exchange tube 3 is inserted into the corresponding sleeve 5 to realize transverse positioning, the two adjacent positioning rings 4 are mutually connected through a plurality of connecting plates 6, the two ends of any connecting plate 6 are respectively connected with the sleeve 5 positioned on the outer ring and the positioning ring 4 positioned on the inner, the upper ends of all the heat exchange tubes 3 are converged to an upper header 7, the lower ends of all the heat exchange tubes 3 are converged to a lower header 8, a first connector 9 is arranged on the upper header 7, and a second connector 10 is arranged on the lower header 8.
In this embodiment, each sleeve 5 is correspondingly provided with one connecting plate 6, but in actual production, the number of the connecting plates 6 is completely determined according to the fixing effect of the heat exchange tube ring, and appropriate reduction can be made, for example, one sleeve 5 is selected from every three sleeves 5 to be provided with the connecting plate 6.
As shown in fig. 1, the upper header 7 includes a first straight cylinder 701, a hemispherical lower head 702 connected to the lower end of the first straight cylinder 701, and a cone 703 connected to the upper end of the first straight cylinder 701, the diameter of the upper opening of the cone 703 is smaller than that of the lower opening, the upper opening of the cone 703 is connected with a drain pipe 704, and the upper end of the drain pipe 704 is a first connector 9; the lower header 8 comprises a second straight cylinder 801, a hemispherical upper end enclosure 802 connected to the upper end of the second straight cylinder 801, and a lower bottom cover 803 connected to the lower end of the second straight cylinder 801, the second connector 10 is arranged on the lower bottom cover 803, and the second connector 10 is connected with the water inlet joint 11; the upper ends of the heat exchange tubes 3 are respectively communicated with the hemispherical lower end socket 702 and the first straight cylinder 701, and the lower ends of the heat exchange tubes 3 are respectively communicated with the hemispherical upper end socket 802 and the second straight cylinder 801.
In actual production, the number of the upper header 7 and the lower header 8 is not limited, and may be increased according to actual installation space.
As shown in fig. 2, all the heat exchange tubes 3 are divided into three concentric annular regions from the inner circumference to the outer circumference, namely, an X region located at the centermost, a Z region located at the outermost circumference, and a Y region located between the X region and the Z region, the intervals between the heat exchange tubes 3 of the respective circles in each region are equal, the interval D1 between any two adjacent heat exchange tubes 3 of the outer circumference Z region is smaller than the interval D2 between any two adjacent heat exchange tubes 3 of the inner circumference adjacent Y region, the interval D2 between any two adjacent heat exchange tubes 3 of the Y region is smaller than the interval D3 between any two adjacent heat exchange tubes 3 of the X region, and the distribution density of the heat exchange tubes 3 gradually increases from the inner region to the outer circumference region.
In actual production, when the number of the annular regions is equal to the number of turns of the heat exchange tubes 3, the distance between any two adjacent turns of the heat exchange tubes 3 is gradually reduced from the inner turn to the outer turn.
As shown in fig. 1, both ends of any heat exchange tube 3 are bent, so that the whole heat exchange tube is in a shape of [, and the heat exchange tube 3 can obtain the capability of absorbing stress, so that the heat exchange tube 3 can absorb the stress by itself when the temperature rises to generate internal stress, thereby reducing the loss of the stress to the heat exchange tube and prolonging the service life of the heat exchange tube.
In this embodiment, the sleeve 5 is a slotted tube, and in actual production, no requirement is imposed on the specific variety of the sleeve, as long as the radial displacement of the heat exchange tube 3 can be limited.
The connecting plate 6 is vertically arranged to fully enlarge the catalyst filling channel, so that the catalyst smoothly reaches each part of the catalyst layer.
The utility model discloses the working process is: as shown in fig. 1 to 4, the heat transfer system of the shift converter of the present invention is installed before use, and is installed from the inner ring to the outer ring one by one, and after the installation of the whole heat transfer system is completed, the whole heat transfer system is installed in the shift converter.
Before the shift converter is used, catalyst is filled into the catalyst layer through a catalyst inlet at the upper end of the outer distributor, a vibrating rod can be used for assisting in uniform and dead-angle-free catalyst filling, after the catalyst filling is completed, the shift converter can be started, meanwhile, the water inlet joint 11 is connected with a cooling water pump, the cooling water is pumped into the lower header 8 through the cooling water pump, is distributed into each heat exchange tube 3 through the lower header 8 and flows upwards into the upper header 7 along the heat exchange tubes 3, and after the upper header 7 is filled with the cooling water, the cooling water is discharged from the water discharge pipe 704.
When cooling water passes through the heat exchange tube 3, the cooling water takes away heat in a catalyst layer outside the heat exchange tube 3, the working temperature of the catalyst layer is reduced, continuous work of the shift converter is maintained, and the heat transfer system controls the temperature of the whole catalyst layer to be in a balanced level.
When the process gas diffuses into the catalyst layer from the outside of the outer distributor 1, the process gas starts to generate heat in the catalyst layer, the high-density process gas firstly contacts the outer-layer catalyst and reacts with the outer-layer catalyst violently, so that the heat productivity of the outer-layer catalyst is larger, the more the inner the process gas content is, the lower the heat productivity of the catalytic reaction is, the higher the density of the heat exchange tubes 3 positioned at the periphery is compared with that of the inner heat exchange tubes, so that the heat productivity of the peripheral catalyst is taken away, and the temperature of the whole catalyst layer is balanced.
In operation, the reaction temperature of the catalyst layer can be controlled by adjusting the flow of cooling water, so that the temperature is in a range beneficial to the catalytic efficiency, and the catalytic efficiency is improved.
The process gas reacts with the catalyst to generate product gas, the product gas is concentrated in the central gas collecting pipe 2, the central gas collecting pipe 2 is communicated with the outside, the product gas is sent out of the shift converter to be collected, and the way of communicating the central gas collecting pipe 2 with the outside is irrelevant to the scheme, so that the invention can refer to the invention patent 'a double-spherical-cavity controllable heat-transfer shift reactor and a CO reaction method thereof' in which the central gas collecting pipe 2 is communicated with the outside in the background technology without being described or limited.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (7)
1. The heat transfer system of the shift converter comprises a large number of heat exchange tubes (3) arranged between an outer distributor (1) and a central gas collecting tube (2), and is characterized in that the heat exchange tubes (3) are all arranged in parallel to the axial direction of the central gas collecting tube (2) and are arranged in a concentric circle shape by taking the central gas collecting tube (2) as the center to form a plurality of heat exchange tube rings, a plurality of positioning rings (4) which are sequentially arranged up and down are arranged on the periphery of each heat exchange tube (3), sleeves (5) which correspond to the heat exchange tubes (3) adjacent to the inner sides of any positioning ring (4) in a one-to-one manner are connected on the inner wall of any positioning ring (4), the sleeves (5) are axially arranged along the heat exchange tubes (3), each heat exchange tube (3) is inserted into the corresponding sleeve (5) to realize transverse positioning, the two adjacent positioning rings (4) are mutually connected through a plurality of connecting plates (6), two ends of any connecting plate (6) are respectively, the heat exchange tube heat exchanger is characterized in that the distance between any two circles of adjacent heat exchange tubes (3) is fixed, the upper ends of all the heat exchange tubes (3) are collected to a plurality of upper header tanks (7), the lower ends of all the heat exchange tubes (3) are collected to a plurality of lower header tanks (8), each upper header tank (7) is provided with a first interface (9), and each lower header tank (8) is provided with a second interface (10).
2. The shift converter heat transfer system according to claim 1, wherein all the heat exchange tubes (3) are divided into a plurality of concentric annular regions from the inner circumference to the outer circumference, the pitch between the heat exchange tubes (3) of each circle in each region is equal, the pitch between the heat exchange tubes (3) of each circle in the peripheral region is smaller than the pitch between the heat exchange tubes (3) of each circle in the inner adjacent region, and the distribution density of the heat exchange tubes (3) is gradually increased from the inner region to the peripheral region.
3. The shift converter heat removal system according to claim 1, wherein the spacing between adjacent turns of heat exchange tubes (3) is gradually reduced from the inner turn to the outer turn.
4. The shift converter heat removal system according to claim 1, wherein both ends of any one of the heat exchange tubes (3) are bent to make the entire heat exchange tube in a "[" shape.
5. The shift converter heat removal system of claim 1, wherein the sleeve (5) is a slotted tube.
6. The shift converter heat removal system of claim 1, wherein the connection plate (6) is vertically disposed.
7. The shift converter heat transfer system according to claim 1, wherein the number of the upper header (7) and the number of the lower header (8) are one, the upper header (7) comprises a first straight cylinder (701), a hemispherical lower end socket (702) connected to the lower end of the first straight cylinder (701), and a conical cylinder (703) connected to the upper end of the first straight cylinder (701), the diameter of the upper opening of the conical cylinder (703) is smaller than that of the lower opening, a drain pipe (704) is connected to the upper opening of the conical cylinder (703), and the upper end of the drain pipe (704) is provided with a first interface (9); the lower header (8) comprises a second straight cylinder body (801), a hemispherical upper end enclosure (802) connected to the upper end of the second straight cylinder body (801), and a lower bottom cover (803) connected to the lower end of the second straight cylinder body (801), wherein the second interface (10) is arranged on the lower bottom cover (803), and the second interface (10) is connected with a water inlet connector (11); the upper end of each heat exchange tube (3) is respectively communicated with the hemispherical lower end enclosure (702) and the first straight barrel (701), and the lower end of each heat exchange tube (3) is respectively communicated with the hemispherical upper end enclosure (802) and the second straight barrel (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371406.1U CN212119941U (en) | 2020-03-23 | 2020-03-23 | Heat transfer system of shift converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371406.1U CN212119941U (en) | 2020-03-23 | 2020-03-23 | Heat transfer system of shift converter |
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| CN212119941U true CN212119941U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020371406.1U Active CN212119941U (en) | 2020-03-23 | 2020-03-23 | Heat transfer system of shift converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250002A (en) * | 2020-03-23 | 2020-06-09 | 江苏普格机械有限公司 | Heat transfer system of shift converter |
| CN112923347A (en) * | 2021-01-20 | 2021-06-08 | 西安石油大学 | Novel annular array flow distribution device |
-
2020
- 2020-03-23 CN CN202020371406.1U patent/CN212119941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250002A (en) * | 2020-03-23 | 2020-06-09 | 江苏普格机械有限公司 | Heat transfer system of shift converter |
| CN112923347A (en) * | 2021-01-20 | 2021-06-08 | 西安石油大学 | Novel annular array flow distribution device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215600 HAIBA Road, Daxin Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: China National Chemical Equipment Technology (Suzhou) Co.,Ltd. Country or region after: China Address before: 215600 Jiangsu Puge Machinery Co., Ltd., HAIBA Road, Daxin Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: JIANGSU PUGE MACHINERY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |