CN218721531U - Nitrogen heat exchanger for carbon fiber waste heat recovery - Google Patents
Nitrogen heat exchanger for carbon fiber waste heat recovery Download PDFInfo
- Publication number
- CN218721531U CN218721531U CN202222884403.XU CN202222884403U CN218721531U CN 218721531 U CN218721531 U CN 218721531U CN 202222884403 U CN202222884403 U CN 202222884403U CN 218721531 U CN218721531 U CN 218721531U
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- Prior art keywords
- heat exchange
- nitrogen gas
- nitrogen
- heating section
- exchange tube
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 20
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 58
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 7
- 238000003763 carbonization Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of the carbon fiber waste heat recovery technique and specifically relates to a nitrogen gas heat exchanger for carbon fiber waste heat recovery, including the nitrogen gas heat exchange tube, the upper left side position of nitrogen gas heat exchange tube is equipped with the heat transfer export, and the right side below position of nitrogen gas heat exchange tube is equipped with the heat transfer import, the utility model discloses in, through nitrogen gas house steward, thermometer, high temperature heating section, middle temperature heating section and the low temperature heating section that set up, at the in-process that carries out circulation heat transfer from carbon fiber height retort tail gas exhaust pipeline exhaust nitrogen gas, the usable high temperature heating section of this nitrogen gas heat exchanger, middle temperature heating section and low temperature heating section come to rationally regulate and control the institute to the required temperature of corresponding branch road heat transfer to the nitrogen gas that conveniently corresponds required heat transfer all can be by quick heat transfer to the temperature of ideal in the branch road, more and heat transfer power is higher for a whole heat recovery, and need not the later stage carry out electrical heating once more and handle.
Description
Technical Field
The utility model relates to a carbon fiber waste heat recovery technical field specifically is a nitrogen gas heat exchanger for carbon fiber waste heat recovery.
Background
Because the outlet of the direct-fired incinerator for treating the tail gas of the carbon fiber high-low carbonization furnace has 920 ℃ high temperature, the heat exchange treatment of nitrogen is carried out by means of a nitrogen heat exchanger in the process of heat treatment, but the high-low carbonization furnace is divided into 14 different areas, the temperature to be controlled in each area is different and is different from 150 ℃ to 700 ℃, the tube layers of the traditional heat exchangers are communicated, so that the nitrogen can only exchange heat to one temperature, but at present, in order to prevent the nitrogen with higher temperature from entering the area with low required temperature, the temperature after the heat exchange of the nitrogen is generally controlled to be the temperature required by the lowest area, and therefore, the heat exchange temperature of the nitrogen is low in the heat exchange process, the heat recovery is less, and the defects and defects of large quantity of electric heating are further needed subsequently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nitrogen gas heat exchanger for carbon fiber waste heat recovery to it is low to provide the heating of nitrogen gas temperature in solving above-mentioned background art, and heat recovery power is little problem.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a nitrogen gas heat exchanger for carbon fiber waste heat recovery, includes the nitrogen gas heat exchange tube, the upper left side position of nitrogen gas heat exchange tube is equipped with the heat transfer export, and the right side below position of nitrogen gas heat exchange tube is equipped with the heat transfer import, the upper, middle and lower region of nitrogen gas heat exchange tube is equipped with high temperature heating section, medium temperature heating section and low temperature heating section respectively.
Preferably, the nitrogen heat exchange tube is formed by arranging 14 layers of heat exchange tubes up and down at 90 degrees, and the distance between 14 layers of heat exchange tubes in the nitrogen heat exchange tube is not less than 100mm.
Preferably, the number of the heat exchange outlets and the number of the heat exchange inlets are 14, and the heat exchange outlets and the heat exchange inlets are communicated with the nitrogen heat exchange tubes respectively.
Preferably, the number of folds of the heat exchange tubes of the high-temperature heating section is greater than that of the heat exchange tubes of the medium-temperature heating section, and the number of folds of the heat exchange tubes of the medium-temperature heating section is greater than that of the low-temperature heating section.
Preferably, be located first layer heat exchange tube inlet end in the nitrogen gas heat exchange tube is led to and is had the nitrogen gas main road, and the one end switch-on of nitrogen gas main road has tee bend temperature regulating valve, a side end position sealing connection of tee bend temperature regulating valve has the flowmeter, and the flowmeter keeps away from tee bend temperature regulating valve's a side end switch-on has the nitrogen gas house steward, the inside of nitrogen gas house steward is led to each other through flowmeter, tee bend temperature regulating valve, nitrogen gas main road and nitrogen gas heat exchange tube.
Preferably, the other side end of the three-way temperature regulating valve is communicated with a nitrogen branch, a thermometer is arranged at one end of the three-way temperature regulating valve, an exhaust short pipe is communicated with one side end of the nitrogen branch far away from the three-way temperature regulating valve, and 14 exhaust short pipes, the three-way temperature regulating valve and the flowmeter are arranged.
Preferably, the outlet end of the first layer of heat exchange tube in the nitrogen heat exchange tube is communicated with a nitrogen exchange branch, one end of the nitrogen exchange branch is communicated with a branch arranged at the lowest position of the nitrogen header pipe, and the nitrogen header pipe is provided with 14 branches.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the nitrogen gas house steward that sets up, the thermometer, the high temperature heating section, middle temperature heating section and low temperature heating section, in the process of carrying out circulation heat transfer from carbon fiber high-low retort exhaust emission pipeline exhaust nitrogen gas, this nitrogen gas heat exchanger can utilize the high temperature heating section, middle temperature heating section and low temperature heating section, come to carry out reasonable regulation and control to the required temperature of corresponding branch road heat transfer and formulate, thereby make things convenient for the nitrogen gas of required heat transfer in the corresponding branch road all can be by the ideal temperature of quick heat transfer, for the heat transfer operation of single temperature formula in the past, the heat transfer heat of this nitrogen gas heat exchanger is 3 times of the heat transfer heat of conventional nitrogen gas heat exchanger, the heat recovery of whole is more and heat transfer power is higher, need not the later stage to carry out electrical heating again and handle;
2. the utility model discloses in, through flowmeter and the nitrogen gas house steward that sets up, when accompanying nitrogen gas to carrying out heat transfer operation in circulating to every branch road from the inside branch of nitrogen gas house steward, the in-process of heat transfer operation can circulate to nitrogen gas, plays the effect of carrying out the flow monitoring that corresponds to every branch road, and the reposition of redundant personnel after avoiding nitrogen gas heat transfer is selected more strictly to high temperature nitrogen gas flowmeter, and the cost also sharply increases.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the nitrogen header pipe connection structure of the present invention;
figure 3 is the utility model discloses nitrogen gas heat transfer control flow path schematic diagram.
In the figure: the system comprises a 1-nitrogen heat exchange pipe, a 2-heat exchange outlet, a 3-heat exchange inlet, a 4-high temperature heating section, a 5-medium temperature heating section, a 6-low temperature heating section, a 7-nitrogen header pipe, an 8-flowmeter, a 9-three-way temperature regulating valve, a 10-nitrogen branch, a 11-nitrogen main path, a 12-nitrogen exchange branch, a 13-thermometer and a 14-exhaust short pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a nitrogen gas heat exchanger for carbon fiber waste heat recovery, includes nitrogen gas heat exchange tube 1, and the upper left side position of nitrogen gas heat exchange tube 1 is equipped with heat transfer export 2, and the right side below position of nitrogen gas heat exchange tube 1 is equipped with heat transfer import 3, and the upper, middle, lower region of nitrogen gas heat exchange tube 1 is equipped with high temperature heating section 4, middle temperature heating section 5 and low temperature heating section 6 respectively.
As shown in fig. 1, the nitrogen heat exchange tube 1 is formed by arranging 14 layers of heat exchange tubes in an up-down arrangement at 90 degrees, the spacing between 14 layers of heat exchange tubes in the nitrogen heat exchange tube 1 is not less than 100mm, and under the cooperation of the up-down arrangement, the adjacent spacing is less than 100mm, so that each layer of heat exchange tubes can be ensured to be in a non-interference state; the number of the heat exchange outlets 2 and the number of the heat exchange inlets 3 are 14, the heat exchange outlets 2 and the heat exchange inlets 3 are communicated with the nitrogen heat exchange tube 1, the heat exchange tubes of the nitrogen heat exchanger are provided with the independent heat exchange outlets 2 and the independent heat exchange inlets 3 on each layer, and each layer of heat exchange tubes can circulate independently.
As shown in fig. 1, 2 and 3, the fold number of the heat exchange tubes of the high-temperature heating section 4 is greater than that of the heat exchange tubes of the medium-temperature heating section 5, and the fold number of the heat exchange tubes of the medium-temperature heating section 5 is greater than that of the low-temperature heating section 6, under the automatic control cooperation of the thermometer 13, the nitrogen heat exchanger can reasonably regulate and control the temperature required by the heat exchange of the corresponding branch by using the high-temperature heating section 4, the medium-temperature heating section 5 and the low-temperature heating section 6 with different length fold numbers of the heat exchange tubes according to the different temperatures of each path of waste gas after the heat exchange; the inlet end of a first layer of heat exchange tube positioned in the nitrogen heat exchange tube 1 is communicated with a nitrogen main tube 11, one end of the nitrogen main tube 11 is communicated with a three-way temperature adjusting valve 9, one side end of the three-way temperature adjusting valve 9 is connected with a flowmeter 8 in a sealing manner, one side end of the flowmeter 8, far away from the three-way temperature adjusting valve 9, is communicated with a nitrogen main tube 7, the interior of the nitrogen main tube 7 is communicated with the interior of the nitrogen heat exchange tube 1 through the flowmeter 8, the three-way temperature adjusting valve 9, the nitrogen main tube 11 and the interior of the nitrogen heat exchange tube 1, and the plurality of flowmeters 8 are arranged, so that the corresponding flow monitoring effect on each branch can be realized in the process of conducting circulation heat exchange operation on nitrogen; the other end of the three-way temperature regulating valve 9 is communicated with a nitrogen branch 10, one end of the three-way temperature regulating valve 9 is provided with a thermometer 13, one end of the nitrogen branch 10, which is far away from the three-way temperature regulating valve 9, is communicated with an exhaust short pipe 14, 14 exhaust short pipes 14, the three-way temperature regulating valve 9 and a flowmeter 8 are arranged, the nitrogen is divided into the branch 10 and a main path 11 through the three-way temperature regulating valve 9, and the nitrogen can be converged with a nitrogen exchange branch 12 and the branch 10 after heat exchange in the main path 11; the outlet end of the first layer of heat exchange tube positioned in the nitrogen heat exchange tube 1 is communicated with a nitrogen exchange branch 12, one end of the nitrogen exchange branch 12 and the branch arranged at the lowest position of the nitrogen header pipe 7 are communicated with each other, the nitrogen header pipe 7 is provided with 14 branches, and the number of the branches and the number of heat exchange tube layers of the heat exchanger can be set according to the area where nitrogen of the high-low carbonization furnace enters.
The working process is as follows: when the nitrogen gas from carbon fiber height retort tail gas exhaust pipeline exhaust, many branch roads that the quick 7 side of following nitrogen gas house steward were equipped with, realize the in-process of circulation, under the automated control cooperation of thermometer 13, this nitrogen gas heat exchanger can be according to the difference of the temperature behind each way waste gas heat transfer, utilize the length fold number of heat exchange tube high temperature heating section 4 of the homogeneous difference, medium temperature heating section 5 and low temperature heating section 6, come to carry out reasonable regulation and control to the required temperature of corresponding branch road heat transfer and formulate, until after the inside of branch road 10 is taken back again in the inside of main road 11 from the nitrogen gas that many branch roads heat transfer shunted, thereby obtain the nitrogen gas accessible after the high-efficient heat transfer and conveniently correspond the required heat transfer in the branch road nitrogen gas all can let in the different regions of high low carbon furnace through exhaust nozzle 14.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a nitrogen gas heat exchanger for carbon fiber waste heat recovery, includes nitrogen gas heat exchange tube (1), its characterized in that: the nitrogen gas heat exchange tube is characterized in that a heat exchange outlet (2) is arranged at the upper left position of the nitrogen gas heat exchange tube (1), a heat exchange inlet (3) is arranged at the lower right position of the nitrogen gas heat exchange tube (1), and a high-temperature heating section (4), a medium-temperature heating section (5) and a low-temperature heating section (6) are respectively arranged in the upper, middle and lower regions of the nitrogen gas heat exchange tube (1).
2. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 1, wherein: the nitrogen heat exchange tube (1) is formed by arranging 14 layers of heat exchange tubes up and down at 90 degrees, and the distance between 14 layers of heat exchange tubes in the nitrogen heat exchange tube (1) is not less than 100mm.
3. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 2, wherein: the number of the heat exchange outlets (2) and the number of the heat exchange inlets (3) are 14, and the heat exchange outlets (2) and the heat exchange inlets (3) are communicated with the nitrogen heat exchange tubes (1) respectively.
4. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 1, characterized in that: the number of folds of the heat exchange tubes of the high-temperature heating section (4) is larger than that of the heat exchange tubes of the medium-temperature heating section (5), and the number of folds of the heat exchange tubes of the medium-temperature heating section (5) is larger than that of the low-temperature heating section (6).
5. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 1, wherein: be located first layer heat exchange tube inlet end in nitrogen gas heat exchange tube (1) switches on and has nitrogen gas main way (11), and the one end switch-on of nitrogen gas main way (11) has three-way temperature regulating valve (9), one side end position sealing connection of three-way temperature regulating valve (9) has flowmeter (8), and flowmeter (8) keep away from one side end switch-on of three-way temperature regulating valve (9) has nitrogen gas house steward (7), the inside of nitrogen gas house steward (7) is passed through flowmeter (8), three-way temperature regulating valve (9), nitrogen gas main way (11) and nitrogen gas heat exchange tube (1) and is switched on each other.
6. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 5, wherein: the other side end of tee bend temperature regulation valve (9) is switched on and is had nitrogen gas branch road (10), and the one end position of tee bend temperature regulation valve (9) is equipped with thermometer (13), one side end switch-on that tee bend temperature regulation valve (9) were kept away from in nitrogen gas branch road (10) has exhaust nozzle stub (14), and exhaust nozzle stub (14), tee bend temperature regulation valve (9) and flowmeter (8) all are equipped with 14 altogether.
7. The nitrogen heat exchanger for carbon fiber waste heat recovery according to claim 5, wherein: be located first layer heat exchange tube exit end among nitrogen gas heat exchange tube (1) leads to and trades nitrogen gas branch road (12), and trades the branch road intercommunication that the one end of nitrogen gas branch road (12) and nitrogen gas house steward (7) the below position was equipped with, nitrogen gas house steward (7) are equipped with 14 branch roads altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884403.XU CN218721531U (en) | 2022-10-31 | 2022-10-31 | Nitrogen heat exchanger for carbon fiber waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222884403.XU CN218721531U (en) | 2022-10-31 | 2022-10-31 | Nitrogen heat exchanger for carbon fiber waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218721531U true CN218721531U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222884403.XU Active CN218721531U (en) | 2022-10-31 | 2022-10-31 | Nitrogen heat exchanger for carbon fiber waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218721531U (en) |
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2022
- 2022-10-31 CN CN202222884403.XU patent/CN218721531U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 4, No. 9, 17th Street, Baiyang Street, Qiantang District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Zhejiang Jinggong New Material Technology Co.,Ltd. Address before: Building 4, No. 9, 17th Street, Economic and Technological Development Zone, Hangzhou City, Zhejiang Province, 310018 Patentee before: ZHEJIANG JINGGONG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |