CN221055593U - Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery - Google Patents

Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery Download PDF

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Publication number
CN221055593U
CN221055593U CN202322625901.7U CN202322625901U CN221055593U CN 221055593 U CN221055593 U CN 221055593U CN 202322625901 U CN202322625901 U CN 202322625901U CN 221055593 U CN221055593 U CN 221055593U
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heat exchanger
fresh air
temperature
carbon fiber
heat exchange
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CN202322625901.7U
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李晨曦
胡国军
张钦雷
丁泽坤
姜志平
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Zhejiang Jinggong New Material Technology Co ltd
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Zhejiang Jinggong New Material Technology Co ltd
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Abstract

The utility model discloses an outdoor vertical high-temperature heat exchanger for recovering carbon fiber waste heat, and aims to solve the problem that the vertical high-temperature heat exchanger is inconvenient to install due to limited hanging height of a factory building when the vertical high-temperature heat exchanger is installed in the factory building in the prior art. The utility model solves the technical problems by the following technical proposal: comprising the following steps: the heat exchanger comprises a heat exchanger body which is vertically arranged, wherein a supporting base is arranged at the bottom of the heat exchanger body, and an overhaul platform is arranged on the side wall of the heat exchanger; the top of maintenance platform is provided with the canopy that keeps off, and the vertical cat ladder that is provided with of lateral wall of heat exchanger and connects ground and maintenance platform. The device is provided with maintenance platform, access door, solves the maintenance of high maintenance difficulty, and this device is provided with the weather shed, and outer finish uses weather paint to prevent the ageing problem that the ultraviolet shines for a long time, is applicable to the outdoor installation of high temperature heat exchanger and uses.

Description

Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to an outdoor vertical high-temperature heat exchanger for recovering waste heat of carbon fibers.
Background
Carbon Fiber (CF) is a novel fiber material of high strength and high modulus fiber with carbon content more than 95%. The polyacrylonitrile is prepared by a plurality of working procedures such as sizing, oxidation, low-temperature carbonization, high-temperature carbonization and the like. Carbon fiber is "soft outside and rigid inside", and is lighter in mass than metal aluminum, but higher in strength than steel, and has the characteristics of corrosion resistance and high modulus. It not only has the inherent intrinsic characteristics of carbon materials, but also has the soft processability of textile fibers, and is a new generation of reinforcing fibers. The carbon fiber has many excellent performances, high axial strength and modulus, low density, high specific performance, no creep deformation, ultrahigh temperature resistance under non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, small thermal expansion coefficient, anisotropy, good corrosion resistance and good X-ray permeability. Good electric and heat conductivity, good electromagnetic shielding performance, etc.
In the carbonization process of carbon fiber production, the waste gas from the carbonization furnace directly enters a direct-fired incinerator (TO) treatment system through a pipeline, and the waste gas is directly led into a combustion chamber without preheating. In the combustion chamber of the incinerator, waste gas is combusted, and waste gas after TO treatment is recycled by a high-temperature heat exchanger. With the development of carbon fiber production technology, larger tows and carbon fiber production lines with wider breadth are put into production, the amount of waste gas generated in the production process is more, more heat is generated for recycling, the heat exchange amount of the corresponding high-temperature heat exchanger is also larger, the appearance volume is also larger, the high-temperature heat exchanger for recycling the waste heat of the carbon fiber is of a horizontal installation structure, the waste gas enters and exits from left and right waste gas ports, the horizontal structure occupies large factory building space, and the space utilization rate is low. In order to improve the space utilization, the heat exchanger is arranged into a vertical installation structure, so that the space utilization is improved, but due to the high vertical structure, the lifting in a factory building cannot meet the lifting installation of the high-temperature heat exchanger, so that the installation is inconvenient. Therefore, a high-temperature heat exchanger with large heat exchange amount, high heat exchange efficiency and small space occupation is needed to be applied outdoors.
Disclosure of utility model
The outdoor vertical high-temperature heat exchanger for recovering the carbon fiber waste heat is provided with a rain shed and an overhaul platform, so that the outdoor vertical high-temperature heat exchanger can be suitable for outdoor installation and use.
In order to solve the technical problems, the utility model adopts the following technical scheme: an outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery, comprising: the heat exchanger comprises a heat exchanger body which is vertically arranged, wherein a supporting base is arranged at the bottom of the heat exchanger body, and an overhaul platform is arranged on the side wall of the heat exchanger; the top of maintenance platform is provided with the canopy that keeps off, and the vertical cat ladder that is provided with of lateral wall of heat exchanger and connects ground and maintenance platform.
The device is provided with maintenance platform, access door, solves the maintenance of high maintenance difficulty, and this device is provided with the weather shed, and outer finish uses weather paint to prevent the ageing problem that the ultraviolet shines for a long time, is applicable to the outdoor installation of high temperature heat exchanger and uses.
Preferably, the overhaul platform comprises a first overhaul platform and a second overhaul platform which are sequentially arranged from bottom to top, and a first overhaul door and a second overhaul door which are sequentially arranged from bottom to top are arranged on the side wall of the heat exchanger body; the first access door corresponds to the first access platform, the second access door corresponds to the second access cover platform, and the cat ladder is connected with the first access platform and the second access platform.
The overhaul platform enables equipment in the fresh air inlet area and the fresh air outlet area to be overhauled conveniently.
Preferably, the bottom end of the heat exchanger body is provided with a high-temperature flue gas outlet, and the top end of the heat exchanger body is provided with a high-temperature flue gas inlet; the side wall of the heat exchanger is provided with a fresh air inlet and a fresh air outlet from bottom to top.
The high-temperature waste gas at 920 ℃ flows out of the heat exchanger body from the high-temperature flue gas outlet after heat exchange between the high-temperature gas and the fresh air heat exchange pipe; fresh air enters the fresh air heat exchange tube bundle from the fresh air inlet, and flows out from the fresh air outlet after heat exchange is carried out on the fresh air in the fresh air heat exchange tube bundle through the heat exchange tubes, and the flowing direction of the fresh air in the fresh air heat exchange tube bundle is opposite to the flowing direction of high-temperature flue gas in the heat exchanger body, so that the heat exchange efficiency of the fresh air and the high-temperature flue gas is higher.
Preferably, a fresh air heat exchange tube bundle is arranged in the heat exchanger body, an inlet of the fresh air heat exchange tube bundle corresponds to the fresh air inlet, and an outlet of the fresh air heat exchange tube bundle corresponds to the fresh air outlet.
The heat exchange tube bundle can improve the heat exchange efficiency and the heat utilization rate of high-temperature waste gas.
Preferably, the end part of the fresh air heat exchange tube bundle is provided with a nitrogen heat exchange tube bundle, and the two ends of the nitrogen heat exchange tube bundle are respectively provided with a high-temperature nitrogen outlet and a normal-temperature nitrogen inlet.
The nitrogen heat exchange tube bundle and the fresh air heat exchange tube bundle are integrated, so that part of the high-temperature flue gas is used for heating fresh air, and the other part of the high-temperature flue gas is used for heating nitrogen, and the multiple utilization of waste gas heat is realized.
Preferably, side wall partition plates are arranged at two ends of the fresh air heat exchange tube in the length direction.
The side wall partition plate can block high-temperature flue gas from being discharged from the fresh air outlet or the fresh air inlet.
Preferably, a first partition plate is arranged between the fresh air inlet and the fresh air outlet.
The first baffle is mutually perpendicular with the lateral wall baffle for form certain interval between the shell of heat exchanger body and the lateral wall baffle, make things convenient for the staff to overhaul the inner structure of heat exchanger body.
Preferably, a second baffle is arranged between the fresh air heat exchange tube bundle and the nitrogen heat exchange tube bundle.
The second separator separates the fresh air heat exchange tube bundle from the nitrogen heat exchange tube bundle so as to be mutually independent.
Preferably, an online soot blower is arranged in the heat exchanger body.
The online soot blower can realize the soot cleaning of the heat exchange tube in the running process of the equipment, prolong the maintenance period and improve the heat exchange efficiency.
Preferably, a protective cage is arranged on the periphery of the crawling ladder.
The setting of protecting the cage makes the maintainer maintain more safely through the cat ladder.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The device is of a vertical structure, and is convenient for outdoor installation;
(2) The device is provided with an overhaul platform, a cat ladder, a protection cage and a rain shed and is used for overhaul and maintenance of equipment;
(3) The device is provided with an online ash removing device for online ash removal, so that the heat exchanger is improved, the overhaul period is prolonged, and the equipment utilization rate is improved;
(4) In the heat exchange process, the flowing direction of the fresh air in the fresh air heat exchange tube bundle is opposite to the flowing direction of the high-temperature flue gas in the heat exchanger body, so that the heat exchange efficiency of the fresh air and the high-temperature flue gas is higher;
(6) The high-temperature flue gas inlet is arranged at the top of the equipment, the high-temperature flue gas outlet is arranged at the bottom of the equipment, and the fresh air inlet and the fresh air outlet are arranged at the side edges of the equipment; the vertical design not only effectively utilizes the vertical space and saves the transverse space, but also is beneficial to the reduction of smoke dust in waste gas, reduces the smoke dust accumulation on the heat exchange tube and prolongs the maintenance period.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a perspective view of the heat exchanger body of the present utility model;
Fig. 4 is a front perspective view of the heat exchanger body of the present utility model;
FIG. 5 is an internal structural view of the heat exchanger body of the present utility model;
In the figure: 1. the heat exchanger comprises a heat exchanger body, 11, a fresh air outlet, 12, a fresh air inlet, 13, a high-temperature flue gas inlet, 14, a high-temperature flue gas outlet, 15, a first access door, 16 and a second access door;
2. a support base;
3. An overhaul platform 31, a first overhaul platform 32 and a second overhaul platform;
4. A rain shed;
5. Ladder, 51, cage;
6. The fresh air heat exchange tube bundle 61, the side wall partition plates 62, the first partition plates 63 and the second partition plates;
7. A nitrogen heat exchange tube bundle, 71, a high-temperature nitrogen outlet, 72 and a normal-temperature nitrogen inlet;
8. An on-line soot blower.
Detailed Description
The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:
Example 1: referring to fig. 1 to 5, an outdoor vertical high temperature heat exchanger for recovering waste heat of carbon fiber, comprising: the heat exchanger comprises a heat exchanger body 1 which is vertically arranged, wherein a supporting base 2 is arranged at the bottom of the heat exchanger body 1, and an overhaul platform 3 is arranged on the side wall of the heat exchanger; the top of overhauling platform 3 is provided with weather shed 4, and the vertical cat ladder 5 that is provided with of lateral wall of heat exchanger and connects ground and overhauling platform 3.
The heat exchanger body 1 mainly comprises two areas, namely a fresh air inlet area and a fresh air outlet area, wherein the fresh air inlet area is arranged at the lower half part of the heat exchanger, and the fresh air outlet area is arranged at the upper half part of the heat exchanger, so that a fresh air outlet 11 is arranged at the upper half part of the side wall of the heat exchanger, and a fresh air inlet 12 is arranged at the lower half part of the side wall of the heat exchanger; the heat exchanger body 1 is internally provided with a fresh air heat exchange tube bundle 6, an inlet of the fresh air heat exchange tube bundle 6 corresponds to a fresh air inlet 12, an outlet of the fresh air heat exchange tube bundle 6 corresponds to a fresh air outlet 11, and the fresh air heat exchange tube bundle 6 is arranged between a fresh air inlet area and a fresh air outlet area in a penetrating mode.
In addition, two ends of the fresh air heat exchange tube in the length direction are provided with side wall partition plates 61, and the side wall partition plates 61 can block high-temperature flue gas from being discharged from the fresh air outlet 11 or the fresh air inlet 12; be provided with first baffle 62 between fresh air inlet 12 and the fresh air outlet 11, first baffle 62 is mutually perpendicular with lateral wall baffle 61 for form certain interval between the shell of heat exchanger body 1 and the lateral wall baffle 61, make things convenient for the staff to overhaul.
In order to improve the heat exchange efficiency of the heat exchanger, the top end of the heat exchanger body 1 is provided with a high-temperature flue gas inlet 13, and the bottom end of the heat exchanger body 1 is provided with a high-temperature flue gas outlet 14; the flow direction of the high-temperature flue gas is from top to bottom, and the flow direction of the fresh air is from bottom to top when the flow direction of the fresh air is the opposite direction of the flow direction of the high-temperature flue gas, so that the heat exchange efficiency is higher.
The high-temperature flue gas inlet 13 is arranged at the top of the equipment, and the fresh air inlet 12 and the fresh air outlet 11 are arranged at the side edges of the equipment; the vertical design not only effectively utilizes the vertical space and saves the transverse space, but also is beneficial to the reduction of smoke dust in waste gas, reduces the smoke dust accumulation on the heat exchange tube and prolongs the maintenance period.
The overhaul platform 3 comprises a first overhaul platform 31 and a second overhaul platform 32 which are sequentially arranged from bottom to top, and a first overhaul door 15 and a second overhaul door 16 which are sequentially arranged from bottom to top on the side wall of the heat exchanger body 1; the first access door 15 is arranged in a fresh air inlet area, the second access door 16 is arranged in a fresh air outlet area, the first access door 15 corresponds to the first access platform 31, the second access door 16 corresponds to the second access cover platform, and the cat ladder 5 is connected with the first access platform 31 and the second access platform 32. So that equipment in the fresh air inlet area and the fresh air outlet area can be overhauled conveniently.
In order to make the maintenance personnel more safe when overhauling through the cat ladder 5, a protection cage 51 is arranged on the periphery of the cat ladder 5.
The side wall of the heat exchanger body 1 is also provided with an on-line soot blower 8, so that the soot cleaning of the heat exchange tube can be realized in the running process of equipment, the maintenance period is prolonged, and the heat exchange efficiency is improved. The outer layer finishing coat of the heat exchanger uses weather-proof paint to prevent the aging problem of ultraviolet long-term irradiation.
The utility model aims to overcome the defects of the prior art, and provides the high-temperature heat exchanger which has the advantages of large heat exchange capacity, outdoor vertical installation and convenient maintenance, and has reasonable design and simple structure. The high-temperature waste gas at 920 ℃ flows out of the heat exchanger body 1 from the high-temperature flue gas outlet 14 after heat exchange of the high-temperature gas and the fresh air heat exchange pipe from the high-temperature flue gas inlet 13 in the heat exchanger body 1; fresh air enters the fresh air heat exchange tube bundle 6 from the fresh air inlet 12, flows out from the fresh air outlet 11 after heat exchange is carried out on the fresh air in the fresh air heat exchange tube bundle 6 through the heat exchange tubes, and the flowing direction of the fresh air in the fresh air heat exchange tube bundle 6 is opposite to the flowing direction of high-temperature flue gas in the heat exchanger body 1, so that the heat exchange efficiency of the fresh air and the high-temperature flue gas is higher. The high-temperature flue gas inlet 13 is arranged at the top of the equipment, the high-temperature flue gas outlet 14 is arranged at the bottom of the equipment, and the fresh air inlet 12 and the fresh air outlet 11 are arranged at the side edges of the equipment; the vertical design not only effectively utilizes the vertical space and saves the transverse space, but also is beneficial to the reduction of smoke dust in waste gas, reduces the smoke dust accumulation on the heat exchange tube and prolongs the maintenance period. In addition, the device is provided with the online soot blower 8, so that the soot collection cleaning of the heat exchange tube can be realized in the running process of the equipment, the maintenance period is prolonged, and the heat exchange efficiency is improved. The device is provided with an overhaul platform 3 and an overhaul door, and solves the problem of difficult overhaul in height. The device is provided with the rain shed 4, and the outer layer finish paint is used for preventing the aging problem of ultraviolet radiation for a long time, so that the device is suitable for outdoor installation and use of a high-temperature heat exchanger.
Example 2: referring to fig. 1 to 5, the present embodiment is similar to embodiment 1 in structure except that the end of the fresh air heat exchange tube bundle 6 is provided with a nitrogen heat exchange tube bundle 7, and both ends of the nitrogen heat exchange tube bundle 7 are provided with a high temperature nitrogen outlet 71 and a normal temperature nitrogen inlet 72, respectively. A second baffle 63 is arranged between the fresh air heat exchange tube bundle 6 and the nitrogen heat exchange tube bundle 7.
In this embodiment, the nitrogen heat exchange tube bundle 7 and the fresh air heat exchange tube bundle 6 are integrated, so that a part of the high-temperature flue gas is used for heating fresh air, and the other part of the high-temperature flue gas is used for heating nitrogen, thereby realizing multiple utilization of waste gas heat.
The above-described embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.

Claims (10)

1. An outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery, which is characterized by comprising: the heat exchanger comprises a heat exchanger body which is vertically arranged, wherein a supporting base is arranged at the bottom of the heat exchanger body, and an overhaul platform is arranged on the side wall of the heat exchanger; the top of maintenance platform is provided with the canopy that keeps off, and the vertical cat ladder that is provided with of lateral wall of heat exchanger and connects ground and maintenance platform.
2. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to claim 1, wherein the overhaul platform comprises a first overhaul platform and a second overhaul platform which are sequentially arranged from bottom to top, and a first overhaul door and a second overhaul door which are sequentially arranged from bottom to top are arranged on the side wall of the heat exchanger body; the first access door corresponds to the first access platform, the second access door corresponds to the second access cover platform, and the cat ladder is connected with the first access platform and the second access platform.
3. The outdoor vertical high-temperature heat exchanger for recovering the residual heat of the carbon fiber according to claim 1, wherein the bottom end of the heat exchanger body is provided with a high-temperature flue gas outlet, and the top end of the heat exchanger body is provided with a high-temperature flue gas inlet; the side wall of the heat exchanger is provided with a fresh air inlet and a fresh air outlet from bottom to top.
4. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to claim 3, wherein a fresh air heat exchange tube bundle is arranged in the heat exchanger body, an inlet of the fresh air heat exchange tube bundle corresponds to the fresh air inlet, and an outlet of the fresh air heat exchange tube bundle corresponds to the fresh air outlet.
5. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to claim 4, wherein a nitrogen heat exchange tube bundle is arranged at the end part of the fresh air heat exchange tube bundle, and a high-temperature nitrogen outlet and a normal-temperature nitrogen inlet are respectively arranged at the two ends of the nitrogen heat exchange tube bundle.
6. The outdoor vertical high-temperature heat exchanger for recovering waste heat of carbon fiber as claimed in claim 4, wherein side wall baffles are arranged at two ends of the fresh air heat exchange tube in the length direction.
7. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to claim 4, wherein a first partition plate is provided between the fresh air inlet and the fresh air outlet.
8. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to claim 5, wherein a second separator is provided between the fresh air heat exchange tube bundle and the nitrogen heat exchange tube bundle.
9. The outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery according to any one of claims 1 to 8, wherein an on-line soot blower is provided in the heat exchanger body.
10. The outdoor vertical type high-temperature heat exchanger for recovering carbon fiber waste heat according to any one of claims 1 to 8, wherein a protective cage is arranged on the periphery of the ladder stand.
CN202322625901.7U 2023-09-26 2023-09-26 Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery Active CN221055593U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322625901.7U CN221055593U (en) 2023-09-26 2023-09-26 Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322625901.7U CN221055593U (en) 2023-09-26 2023-09-26 Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery

Publications (1)

Publication Number Publication Date
CN221055593U true CN221055593U (en) 2024-05-31

Family

ID=91223942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322625901.7U Active CN221055593U (en) 2023-09-26 2023-09-26 Outdoor vertical high-temperature heat exchanger for carbon fiber waste heat recovery

Country Status (1)

Country Link
CN (1) CN221055593U (en)

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