CN214065789U - Composite coil type ascending pipe heat exchange device - Google Patents
Composite coil type ascending pipe heat exchange device Download PDFInfo
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- CN214065789U CN214065789U CN202022395473.XU CN202022395473U CN214065789U CN 214065789 U CN214065789 U CN 214065789U CN 202022395473 U CN202022395473 U CN 202022395473U CN 214065789 U CN214065789 U CN 214065789U
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Abstract
The utility model belongs to the technical field of heat exchanger equipment, a compound coil type riser heat transfer device is related to. The composite coil pipe type ascending pipe heat exchange device comprises an inner cylinder, a clamping sleeve and an outer cylinder, and is characterized in that: an inner heat exchange tube is arranged in the inner tube, outer heat exchange tubes are arranged in the inner tube and the jacket tube, a heat insulation layer is arranged between the jacket sleeve and the outer tube, a lower connecting flange is arranged below the inner tube, the jacket sleeve and the outer tube, and an upper connecting flange is arranged above the inner tube, the jacket sleeve and the outer tube; the outer heat exchange pipe is provided with an outer water inlet penetrating through the outer cylinder and the lower part of the side of the jacket cylinder and an outer water outlet penetrating through the outer cylinder and the upper part of the side of the jacket cylinder, a first distributor is arranged on one side of the outer water inlet, a second distributor is arranged at one end of the outer water outlet, and the first distributor and the second distributor are arranged between the jacket cylinder and the inner cylinder; a third distributor and a fourth distributor are also arranged between the clamping sleeve and the inner cylinder; the outer heat exchange tube is a coil tube and is spirally wound on the outer surface of the inner cylinder. The heat exchange tubes are arranged inside and outside the ascending tube of the device, the heat exchange efficiency is high, and the heat absorption is sufficient.
Description
Technical Field
The utility model belongs to the technical field of heat exchanger equipment, concretely relates to compound coil type riser heat transfer device.
Background
At present, the domestic coking process mainly comprises the steps of heating and dry distilling coking coal in a coke oven by isolated air to generate coke and simultaneously generating a large amount of volatilized raw coke gas. Wherein the temperature of red coke pushed out by the coke oven carbonization chamber is 950-1050 ℃, the temperature of coke oven raw gas is 650-800 ℃, and the temperature of coke oven flue gas is 180-230 ℃. For the treatment of high-temperature raw gas, heat exchangers are generally adopted for heat recovery, and the commonly used heat exchangers are jacket type ascending tube heat exchangers and coil type ascending tube heat exchangers.
The heat exchange spaces of the two heat exchangers are arranged outside the inner barrel of the ascending pipe and are not in direct contact with the raw coke oven gas, so that the heat exchange efficiency is low; superheated steam with higher temperature (more than or equal to 400 ℃) in the inner barrel of the riser cannot be obtained, and energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: to the above defect, the utility model provides a compound coil type riser heat transfer device, the inside and the outside of riser all have the heat exchange tube, and heat exchange tube efficiency is high, and the heat absorption is abundant.
The utility model provides a technical scheme that its technical problem adopted as follows: a composite coil pipe type ascending pipe heat exchange device comprises an inner cylinder, a clamping sleeve and an outer cylinder, wherein an inner heat exchange pipe is arranged in the inner cylinder, outer heat exchange pipes are arranged in the inner cylinder and the clamping sleeve, a heat insulation layer is arranged between the clamping sleeve and the outer cylinder, lower connecting flanges are arranged below the inner cylinder, the clamping sleeve and the outer cylinder, and upper connecting flanges are arranged above the inner cylinder, the clamping sleeve and the outer cylinder;
the outer heat exchange pipe is provided with an outer water inlet penetrating through the outer cylinder and the lower side of the jacket cylinder and an outer water outlet penetrating through the outer cylinder and the upper side of the jacket cylinder, a first distributor is arranged on one side of the outer water inlet, a second distributor is arranged at one end of the outer water outlet, and the first distributor and the second distributor are arranged between the clamping sleeve and the inner cylinder;
a third distributor and a fourth distributor are further arranged between the clamping sleeve and the inner cylinder, the third distributor is arranged on the same horizontal line with the first distributor and outside the inner cylinder, and the fourth distributor is arranged on the same horizontal line with the second distributor and outside the inner cylinder;
the outer heat exchange pipe is a coil pipe, and the outer heat exchange pipe is spirally wound on the outer surface of the inner cylinder.
According to the composite coil type ascending tube heat exchange device, the inner heat exchange tubes and the outer heat exchange tubes are arranged inside and outside the inner tube, steam exchanges heat with high-temperature raw coke oven gas through the inner heat exchange tubes and the outer heat exchange tubes in sequence, superheated steam with higher temperature is generated, the heat exchange tubes are high in efficiency, and heat absorption is sufficient; the inner heat exchange tube is a normal-pressure container, does not need regular annual inspection, and is long in service life, safe and reliable; the distributor is convenient to improve the distribution uniformity of the heat exchange medium in the outer heat exchange pipe, and the heat exchange speed is high.
Furthermore, the inner heat exchange tubes are connected by a plurality of heat exchange branch tubes with U-shaped structures, and the heat exchange branch tubes are communicated by connecting tubes; the inner heat exchange tube comprises an inner water inlet and an inner water outlet, the inner water inlet, the inner water outlet and the connecting tube are arranged between the upper top plate and the lower supporting plate, and the upper top plate is connected with the lower supporting plate through a pin. The inner heat exchange tube passes through the heat exchange branch tube with the U-shaped structure, the connecting tube is arranged between the upper top plate and the lower supporting plate, the inner heat exchange tube is not contacted with the raw coke oven gas, the heat exchange branch tube can freely expand along the axial direction when being heated, the safety and the reliability are realized, and the service life of the inner heat exchange tube is long; go up roof and bottom plate convenient to detach, interior heat exchange tube overhauls conveniently.
Furthermore, an inner anticorrosive layer is arranged on the outer surface of the heat exchange branch pipe, and an outer anticorrosive layer is arranged on the inner surface of the inner barrel. The contact part of the inner surface of the inner cylinder, which is in contact with the raw coke oven gas, in the ascending tube heat exchange device and the outer surface of the heat exchange branch tube is introduced with the outer anticorrosive layer and the inner anticorrosive layer, so that the corrosion of corrosive media in the raw coke oven gas can be effectively prevented, and the ascending tube heat exchange device has long service life.
Furthermore, a reinforcing plate is arranged in the middle of the heat exchange branch pipe. The introduced reinforcing plate can improve the connection tightness among the heat exchange branch pipes of the U-shaped structures, the integrity of the inner heat exchange pipe is ensured, and the stability of the inner heat exchange pipe during operation is good.
Further, a heat conduction layer is filled between the inner cylinder and the jacket cylinder, and the heat conduction layer is attached to the outer heat exchange tube. The filled heat conducting layer can effectively reduce the heat in the inner barrel from being diffused outwards, the heat loss is less, and the heat recovery utilization rate is high.
Furthermore, a plurality of L-shaped supports are arranged on the outer surface of the inner cylinder, and the distance between each L-shaped support and the inner cylinder is not larger than the diameter width of the outer heat exchange tube. The L-shaped support can improve the tightness of the outer heat exchange tube and the inner tube, the reduction of heat exchange efficiency caused by the looseness of the outer heat exchange tube is avoided, and the heat exchange stability of the ascending tube heat exchanger is good.
Furthermore, the L-shaped bracket and the inner barrel are integrally formed. The L-shaped support and the inner barrel are integrally formed, the danger of hidden raw coke oven gas leakage caused by welding is effectively avoided, the service life of the ascending tube heat exchange device is long, and the safety is high.
Furthermore, an expansion joint is arranged in the middle of the outer barrel. The introduced expansion joint can freely expand along the axial direction after the outer cylinder is heated, and the heat exchange device has long service life.
Further, interior heat exchange tube is made by the seamless steel pipe of heat-resisting alloy processing, the inner tube is made by the seamless steel pipe of heat-resisting alloy processing, outer anticorrosive coating is ceramic base nano-material, interior anticorrosive coating is ceramic base nano-material, the heat preservation is aerogel fibrofelt. The inner heat exchange tube and the inner tube which are made of seamless steel tubes have no welding seam at the contact part with the raw coke oven gas, so that the possibility of raw coke oven gas leakage is reduced; the ceramic-based nano material is used as the inner anticorrosive layer and the outer anticorrosive layer, so that the corrosion of corrosive media in raw coke oven gas can be prevented, the material has high heat conductivity coefficient and high temperature resistance, a smooth glaze surface is formed at high temperature, impurities are not easy to adhere, and the heat exchange efficiency is effectively guaranteed; adopt the heat preservation that aerogel fibrofelt made, multilayer structure makes ambient temperature effectively reduced on the one hand, the environmental protection, and on the other hand makes the heat not dispel outward, guarantees that inside carries out abundant heat exchange, safe and reliable.
The utility model has the advantages that:
1. according to the composite coil type ascending tube heat exchange device, the inner heat exchange tubes and the outer heat exchange tubes are arranged inside and outside the inner tube, steam exchanges heat with high-temperature raw coke oven gas through the inner heat exchange tubes and the outer heat exchange tubes in sequence, superheated steam with higher temperature is generated, the heat exchange tubes are high in efficiency, and heat absorption is sufficient; the inner heat exchange tube is a normal-pressure container, so that the regular annual inspection is not needed, and the service life is long; the distributor is introduced, so that the distribution uniformity of the heat exchange medium in the outer heat exchange pipe is improved, and the heat exchange speed is high; the inner heat exchange tube passes through the heat exchange branch tube with the U-shaped structure, the connecting tube is arranged between the upper top plate and the lower supporting plate, the inner heat exchange tube is not contacted with the raw coke oven gas, the heat exchange branch tube can freely expand along the axial direction when being heated, the safety and the reliability are realized, and the service life of the inner heat exchange tube is long; go up roof and bottom plate convenient to detach, interior heat exchange tube overhauls conveniently.
2. The contact part of the inner surface of the inner cylinder, which is in contact with the raw coke oven gas, in the ascending tube heat exchange device and the outer surface of the heat exchange branch tube is introduced with the outer anticorrosive layer and the inner anticorrosive layer, so that the corrosion of corrosive media in the raw coke oven gas can be effectively prevented, and the ascending tube heat exchange device has long service life; the introduced reinforcing plate can improve the connection tightness among the heat exchange branch pipes with the U-shaped structures, ensure the integrity of the inner heat exchange pipe and ensure the good stability of the inner heat exchange pipe during operation; the heat conducting layer filled between the inner cylinder and the jacket cylinder can effectively reduce the outward diffusion of heat in the inner cylinder, and has less heat loss and high heat recovery utilization rate; the introduced L-shaped support can improve the tightness between the outer heat exchange tube and the inner tube, thereby avoiding the reduction of heat exchange efficiency caused by the looseness of the outer heat exchange tube and ensuring good heat exchange stability of the ascending tube heat exchanger; the L-shaped bracket and the inner barrel are integrally formed, so that the risk of gas leakage of hidden raw coke oven gas caused by welding is effectively avoided, and the ascending pipe heat exchange device has long service life and high safety; the introduced expansion joint can freely expand along the axial direction after the outer cylinder is heated, and the heat exchange device has long service life.
3. The inner heat exchange tube and the inner tube which are made of seamless steel tubes have no welding seam at the contact part with the raw coke oven gas, so that the possibility of raw coke oven gas leakage is reduced; the ceramic-based nano material is used as the inner anticorrosive layer and the outer anticorrosive layer, so that the corrosion of corrosive media in raw coke oven gas can be prevented, the material has high heat conductivity coefficient and high temperature resistance, a smooth glaze surface is formed at high temperature, impurities are not easy to adhere, and the heat exchange efficiency is effectively guaranteed; adopt the heat preservation that aerogel fibrofelt made, multilayer structure makes ambient temperature effectively reduced on the one hand, the environmental protection, and on the other hand makes the heat not dispel outward, guarantees that inside carries out abundant heat exchange, safe and reliable.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic front view of embodiment 1 of the present invention;
FIG. 2 is a schematic top view of the ascending pipe assembly according to the present invention;
FIG. 3 is a schematic sectional view of the inner heat exchange tube of the present invention;
fig. 4 is a schematic front view of embodiment 2 of the present invention;
wherein: the heat exchanger comprises an inner barrel 1, an outer anticorrosive layer 11, a heat conducting layer 12, an L-shaped support 13, a clamping sleeve 2, an outer barrel 3, an expansion joint 31, an inner heat exchange pipe 4, a heat exchange branch pipe 41, an inner water inlet 42, an inner water outlet 43, an upper top plate 44, a lower supporting plate 45, a connecting pipe 46, an inner anticorrosive layer 47, a reinforcing plate 48, an outer heat exchange pipe 5, an outer water inlet 51, an outer water outlet 52, a first distributor 53, a second distributor 54, a third distributor 55, a fourth distributor 56, a heat insulating layer 6, a lower connecting flange 7 and an upper connecting flange 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, a composite coil type riser heat exchange device comprises an inner cylinder 1, a jacket cylinder 2 and an outer cylinder 3, wherein an inner heat exchange tube 4 is arranged in the inner cylinder 1, an outer heat exchange tube 5 is arranged in the inner cylinder 1 and the jacket cylinder 2, a heat conduction layer 12 is further filled between the inner cylinder 1 and the jacket cylinder 2, and the heat conduction layer 12 is attached to the outer heat exchange tube 5; the outer heat exchange tube 5 is a coil tube, and the outer heat exchange tube 5 is spirally wound on the outer surface of the inner tube 1; a heat insulation layer 6 is arranged between the clamping sleeve 2 and the outer cylinder 3, a lower connecting flange 7 is arranged below the inner cylinder 1, the clamping sleeve 2 and the outer cylinder 3, and an upper connecting flange 8 is arranged above the clamping sleeve 2; the middle part of the outer cylinder 3 is provided with an expansion joint 31;
the outer heat exchange pipe 5 is provided with an outer water inlet 51 passing through the lower sides of the outer cylinder 3 and the jacket cylinder 2 and an outer water outlet 52 passing through the upper sides of the outer cylinder 3 and the jacket cylinder 2, a first distributor 53 is arranged on one side of the outer water inlet 51, a second distributor 54 is arranged at one end of the outer water outlet 52, and the first distributor 53 and the second distributor 54 are arranged between the jacket cylinder 2 and the inner cylinder 1; a third distributor 55 and a fourth distributor 56 are further arranged between the clamping sleeve 2 and the inner barrel 1, the third distributor 55 is arranged outside the inner barrel 1 at the same level as the first distributor 53, and the fourth distributor 56 is arranged outside the inner barrel 1 at the same level as the second distributor 54;
the inner heat exchange tubes 4 are connected by a plurality of heat exchange branch tubes 41 with U-shaped structures, in the embodiment, 3 heat exchange branch tubes are selected, and the heat exchange branch tubes 41 are communicated by connecting tubes 46; the inner heat exchange tube 4 comprises an inner water inlet 42 and an inner water outlet 43, the inner water inlet 42, the inner water outlet 43 and a connecting tube 46 are arranged between an upper top plate 44 and a lower supporting plate 45, the upper top plate 44 is connected with the lower supporting plate 45 through a pin, an inner anticorrosive layer 47 is arranged on the outer surface of the heat exchange branch tube 41, an outer anticorrosive layer 11 is arranged on the inner surface of the inner tube 1, and a reinforcing plate 48 is further arranged in the middle of the heat exchange branch tube 41;
the inner heat exchange tube 4 is made of a seamless steel tube processed by heat-resistant alloy, the inner tube 1 is made of a seamless steel tube processed by heat-resistant alloy, the outer anticorrosive layer 11 is made of ceramic-based nano material, the inner anticorrosive layer 47 is made of ceramic-based nano material, and the heat preservation layer 6 is aerogel fibrofelt. The ascending tube heat exchanger adopts double heat exchange of the inner heat exchange tube and the outer heat exchange tube, and has high heat exchange efficiency; the inner heat exchange tube is made of heat-resistant alloy, and an inner anti-corrosion layer is coated outside the inner heat exchange tube, so that the heat exchange tube is high-temperature resistant, corrosion resistant, safe and reliable; the inner cylinder is made of heat-resistant alloy, has a seamless structure, is internally coated with an outer anticorrosive coating, is high-temperature resistant and corrosion resistant, and is safe and reliable.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that a plurality of L-shaped brackets 13 are disposed on the outer surface of the inner cylinder 1, the distance between the L-shaped brackets 13 and the inner cylinder 1 is not greater than the diameter width of the outer heat exchange tube 5, and the L-shaped brackets 13 are integrally formed with the inner cylinder 1.
The L-shaped bracket introduced by the embodiment can improve the tightness between the outer heat exchange tube and the inner tube, avoids the reduction of heat exchange efficiency caused by the looseness of the outer heat exchange tube, and has good heat exchange stability; l shape support and inner tube integrated into one piece effectively avoid leading to the fact because of the welding hidden danger of raw coke oven gas leakage, and this tedge heat transfer device long service life further improves the security height.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a compound coil pipe formula tedge heat transfer device, includes inner tube, presss from both sides sleeve and urceolus, its characterized in that: an inner heat exchange tube is arranged in the inner tube, outer heat exchange tubes are arranged in the inner tube and the jacket tube, a heat insulation layer is arranged between the jacket sleeve and the outer tube, lower connecting flanges are arranged below the inner tube, the jacket sleeve and the outer tube, and upper connecting flanges are arranged above the inner tube, the jacket sleeve and the outer tube;
the outer heat exchange pipe is provided with an outer water inlet penetrating through the outer cylinder and the lower side of the jacket cylinder and an outer water outlet penetrating through the outer cylinder and the upper side of the jacket cylinder, a first distributor is arranged on one side of the outer water inlet, a second distributor is arranged at one end of the outer water outlet, and the first distributor and the second distributor are arranged between the clamping sleeve and the inner cylinder;
a third distributor and a fourth distributor are further arranged between the clamping sleeve and the inner cylinder, the third distributor is arranged on the same horizontal line with the first distributor and outside the inner cylinder, and the fourth distributor is arranged on the same horizontal line with the second distributor and outside the inner cylinder;
the outer heat exchange pipe is a coil pipe, and the outer heat exchange pipe is spirally wound on the outer surface of the inner cylinder.
2. The composite coil type riser heat exchange device according to claim 1, wherein: the inner heat exchange tubes are connected by a plurality of heat exchange branch tubes with U-shaped structures, and the heat exchange branch tubes are communicated by connecting tubes; the inner heat exchange tube comprises an inner water inlet and an inner water outlet, the inner water inlet, the inner water outlet and the connecting tube are arranged between the upper top plate and the lower supporting plate, and the upper top plate is connected with the lower supporting plate through a pin.
3. The composite coil type riser heat exchange device according to claim 2, wherein: the outer surface of the heat exchange branch pipe is provided with an inner anticorrosive layer, and the inner surface of the inner cylinder is provided with an outer anticorrosive layer.
4. The composite coil type riser heat exchange device according to claim 2, wherein: and a reinforcing plate is also arranged in the middle of the heat exchange branch pipe.
5. The composite coil type riser heat exchange device according to claim 1, wherein: and a heat conduction layer is also filled between the inner cylinder and the jacket cylinder, and the heat conduction layer is attached to the outer heat exchange tube.
6. The composite coil type riser heat exchange device according to claim 1, wherein: the outer surface of the inner cylinder is provided with a plurality of L-shaped supports, and the distance between each L-shaped support and the inner cylinder is not more than the radial width of the outer heat exchange tube.
7. The composite coil type riser heat exchange device according to claim 6, wherein: the L-shaped support and the inner barrel are integrally formed.
8. The composite coil type riser heat exchange device according to claim 1, wherein: and an expansion joint is arranged in the middle of the outer barrel.
9. The composite coil type riser heat exchange device according to claim 3, wherein: the inner heat exchange tube is made of a seamless steel tube processed by heat-resistant alloy, the inner tube is made of a seamless steel tube processed by heat-resistant alloy, the outer anticorrosive layer is made of ceramic-based nano material, the inner anticorrosive layer is made of ceramic-based nano material, and the heat preservation layer is made of aerogel fiber felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395473.XU CN214065789U (en) | 2020-10-26 | 2020-10-26 | Composite coil type ascending pipe heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395473.XU CN214065789U (en) | 2020-10-26 | 2020-10-26 | Composite coil type ascending pipe heat exchange device |
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| Publication Number | Publication Date |
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| CN214065789U true CN214065789U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022395473.XU Active CN214065789U (en) | 2020-10-26 | 2020-10-26 | Composite coil type ascending pipe heat exchange device |
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| CN (1) | CN214065789U (en) |
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- 2020-10-26 CN CN202022395473.XU patent/CN214065789U/en active Active
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