CN210321326U - Sleeve type channel heat exchanger - Google Patents
Sleeve type channel heat exchanger Download PDFInfo
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- CN210321326U CN210321326U CN201920922951.2U CN201920922951U CN210321326U CN 210321326 U CN210321326 U CN 210321326U CN 201920922951 U CN201920922951 U CN 201920922951U CN 210321326 U CN210321326 U CN 210321326U
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Abstract
The utility model discloses a sleeve-type passageway heat exchanger, include: the outer cylinder body is hollow and cylindrical, the top of the outer cylinder body is provided with a first opening, the bottom of the outer cylinder body is provided with a second opening, the upper part of the side wall is provided with a first water outlet, and the lower part of the side wall is provided with a water inlet; the inner cylinder body is hollow and in a round table shape with a small top and a large bottom, the top end is an exhaust port, the bottom end is an air inlet, and the air inlet and the exhaust port are respectively superposed with the second opening and the first opening to form a hollow interlayer; the annular fins are arranged at intervals from top to bottom along the inner wall of the inner cylinder; the high-temperature anti-corrosion heat-conducting coating is arranged on the inner wall of the inner cylinder and the surface of the annular fin; the M annular partition plates are arranged between the inner cylinder and the outer cylinder and are divided into M +1 layers of heat exchange areas, second water outlets are formed in the annular partition plates, the first water outlets are communicated with the uppermost heat exchange area, and water inlets are communicated with the lowermost heat exchange area; and the connecting assemblies are arranged at two ends of the outer cylinder body. The utility model discloses a sleeve-type passageway heat exchanger heat exchange efficiency is high, can not emit black cigarette, long service life.
Description
Technical Field
The utility model relates to a passageway heat transfer technical field. More specifically, the present invention relates to a sleeve channel heat exchanger.
Background
The traditional flue is a heat-insulating gas channel, the temperature of the flue gas at the outlet is between 700-: firstly, the heat exchanger is unreasonable in structure arrangement, so that the heat exchange efficiency is low; secondly, the edge temperature of the flue gas channel of the heat exchanger is low, so that easily-condensed components in the flue gas are condensed, and the easily-condensed components are secondarily evaporated after the flue gas reaches high temperature to generate a large amount of black smoke, so that the problems of environmental pollution, carbon deposition on the inner wall of the flue gas channel of the heat exchanger and reduction of heat exchange efficiency are caused; thirdly, the flue gas is generally corrosive, the inner wall of the heat exchanger is corroded, and the heat exchanger is damaged to cause leakage of heat exchange liquid after a long time; fourthly, the heat exchange medium may generate steam after heat exchange, which generates larger pressure to the heat exchanger and has high requirement on the pressure resistance of the heat exchanger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is an object to provide a telescope-feed passageway heat exchanger to solve the interior flue gas condensation of heat exchanger and produce black cigarette, flue gas corrosion heat exchanger and the problem that the heat exchanger is inefficiency.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a shell and tube heat exchanger including:
the outer cylinder body is vertically arranged, the outer cylinder body is hollow and cylindrical, a first opening is formed in the top of the outer cylinder body, a second opening is formed in the bottom of the outer cylinder body, a first water outlet is formed in the upper portion of the side wall of the outer cylinder body, and a water inlet is formed in the lower portion of the side wall of the outer cylinder body;
the inner cylinder is vertically arranged inside the outer cylinder, the inner cylinder is in a round table shape with a hollow interior and a small top and a big bottom, the top end of the inner cylinder is provided with an air outlet, the bottom end of the inner cylinder is provided with an air inlet, and the air inlet and the air outlet are respectively superposed with the second opening and the first opening so as to form a hollow interlayer between the inner wall of the outer cylinder and the outer wall of the inner cylinder;
the annular fins are arranged at equal intervals from top to bottom along the inner wall of the inner cylinder body, and the difference value between the outer circle radius and the inner circle radius of the annular fins is equal;
the high-temperature anti-corrosion heat-conducting coating is arranged on the inner wall of the inner cylinder and the surface of the annular fin;
the M annular partition plates are arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the hollow interlayer is divided into M +1 layers of heat exchange areas from top to bottom, a second water outlet is formed in each annular partition plate and is used for communicating two adjacent heat exchange areas, the first water outlet is communicated with the uppermost heat exchange area, and the water inlet is communicated with the lowermost heat exchange area;
and the connecting assembly is arranged at two ends of the outer cylinder body and is used for installing the outer cylinder body and the inner cylinder body in the channel.
Preferably, in the sleeve-type channel heat exchanger, the projection of the second water outlets on two adjacent annular partition plates at the bottom of the outer cylinder body is radially and symmetrically arranged relative to the outer cylinder body.
Preferably, the sleeve type channel heat exchanger is characterized in that the wall surface of the inner cylinder body is provided with annular grooves which are arranged at intervals along the axial direction of the inner cylinder body, and each annular groove is sunken towards the inside of the inner cylinder body along the circumferential direction of the inner cylinder body to form an arc shape.
Preferably, M of the sleeve channel heat exchanger is 6.
Preferably, the sleeve type channel heat exchanger is provided with a rock wool layer outside the outer cylinder body.
Preferably, the sleeve-type channel heat exchanger is characterized in that the second water outlet is arranged on one side close to the outer wall of the inner cylinder, and the second water outlet is fan-shaped.
Preferably, in the sleeve-type channel heat exchanger, the distance between two adjacent annular partition plates from bottom to top of the M annular partition plates is gradually reduced.
The utility model discloses a sleeve-type passageway heat exchanger simple structure, easily production and installation, the heat transfer is effectual, can not produce the problem of black cigarette polluted environment, includes following beneficial effect at least:
(1) the high-temperature anti-corrosion heat-conducting coating is arranged on the inner wall of the inner cylinder and the annular fins, so that not only can the wall surface of the heat exchanger be prevented from being corroded by acid gas in flue gas, the service life of the heat exchanger be prolonged, but also the heat conductivity coefficient of the wall surface of the inner wall can be adjusted, the temperature of the wall surface of the inner cylinder is increased, the temperature of the wall surface is higher than the condensation temperature of easily-condensed components in the flue gas, secondary evaporation after condensation in the heat exchange process is prevented, and; in addition, the high-temperature anticorrosion heat-conducting coating can also isolate the action of high-temperature gas and flame on the metal wall surface of the inner cylinder body directly, and can also protect the metal wall surface from overheating under the condition of water (steam) shortage, so that the safety of the heat exchanger is greatly improved;
(2) the hollow interlayer of the heat exchanger is provided with a plurality of annular clapboards, so that the temperature of the fluid inside the heat exchanger (generally water) is distributed in the flowing process from bottom to top, the heat transfer temperature difference is increased, and meanwhile, the second water outlets are arranged in a staggered manner, so that the fluid fluidity is enhanced, and the heat exchange capacity is improved;
(3) the wall surface of the inner cylinder body is provided with annular grooves which are arranged at intervals along the axial direction of the inner cylinder body, each annular groove is sunken towards the inside of the inner cylinder body along the circumferential direction of the inner cylinder body and is arc-shaped, so that the heat exchange area of the inner cylinder body can be increased, the disturbance of gas is enhanced, and the heat transfer coefficient is improved;
(4) the heat exchanger flue gas passageway is the round platform shape promptly for the barrel, big-end-up, advances from top to bottom, makes flue gas velocity of flow even on the flue gas circulation direction to near the velocity of flow increase of interior barrel wall has strengthened the convection heat transfer coefficient of flue gas and cavity intermediate layer well liquid, has improved heat exchange efficiency, has solved traditional cylindrical interior barrel flue gas passageway, and the lower part flue gas temperature high velocity of flow is fast, the upper portion flue gas temperature low velocity of flow causes the problem that convection heat transfer efficiency is low slowly.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic sectional structure view of a sleeve channel heat exchanger according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an inner cylinder according to a technical aspect of the present invention;
fig. 3 is a schematic structural view of the annular partition plate and the second water outlet according to a technical scheme of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model provides a sleeve-type channel heat exchanger, include:
the device comprises an outer cylinder body 1 which is vertically arranged, wherein the outer cylinder body 1 is hollow and cylindrical, the top of the outer cylinder body 1 is provided with a first opening, the bottom of the outer cylinder body 1 is provided with a second opening, the upper part of the side wall of the outer cylinder body 1 is provided with a first water outlet 12, and the lower part of the side wall of the outer cylinder body is provided with a water inlet 11;
the inner cylinder body 2 is vertically arranged inside the outer cylinder body 1, the inner cylinder body 2 is in a round table shape with a hollow interior and a small top and a big bottom, the top end of the inner cylinder body 2 is provided with an exhaust port 22, the bottom end of the inner cylinder body 2 is provided with an air inlet 21, and the air inlet 21 and the exhaust port 22 are respectively superposed with the second opening and the first opening so as to form a hollow interlayer between the inner wall of the outer cylinder body 1 and the outer wall of the inner cylinder body 2;
the annular fins 3 are arranged at equal intervals from top to bottom along the inner wall of the inner cylinder 2 (namely the vertical heights of two adjacent annular fins are equal, the outer edges of the annular fins are connected with the inner wall of the inner cylinder), and the difference between the outer circle radius and the inner circle radius of the annular fins 3 is equal, namely the radial widths of the annular fins are equal;
the high-temperature anticorrosion heat-conducting coating 4 is arranged on the inner wall of the inner cylinder 2 and the surface of the annular fin 3, the high-temperature anticorrosion heat-conducting coating coated on the inner wall of the inner cylinder is marked in the figure 1, and the annular fin is not marked;
the M annular partition plates 5 are arranged between the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1, the hollow interlayer is divided into M +1 layers of heat exchange areas from top to bottom, a second water outlet 51 is arranged on each annular partition plate 5, two adjacent heat exchange areas are communicated, the first water outlet 12 is communicated with the uppermost heat exchange area, and the water inlet 11 is communicated with the lowermost heat exchange area;
and the connecting assemblies 6 are arranged at two ends of the outer cylinder body 1 and are used for installing the outer cylinder body 1 and the inner cylinder body 2 in the channel.
In this technical scheme, the high temperature flue gas gets into from interior barrel lower part, the upper portion is discharged, because interior barrel is from supreme round platform form that the internal diameter reduces gradually down, the flue gas upward flow in-process, the velocity of flow is more even, near the velocity of flow increase of barrel inner wall including the flue gas, the heat transfer coefficient of convection current has been increased, the heat exchange medium (need to explain, the heat exchanger of this application, heat exchange medium in the cavity intermediate layer can be liquid also can be gas, generally use more for water, and do not limit for water because of the description of water inlet and first delivery port) in flue gas and the cavity intermediate layer heat exchange efficiency.
The inner wall of the inner cylinder is provided with the annular fins, so that the heat exchange area is increased, the disturbance of gas in the cylinder can be increased, the heat exchange is enhanced, the high-temperature anti-corrosion heat-conducting coating is arranged on the inner wall of the inner cylinder and the annular fins, the wall surface of the heat exchanger can be prevented from being corroded by acid gas in flue gas, the heat conductivity coefficient of the wall surface of the inner wall can be adjusted, the temperature of the wall surface of the inner cylinder is increased, the temperature of the wall surface is higher than the condensation temperature of easily-condensed components in the flue gas, the secondary evaporation of the easily-condensed; in addition, the high-temperature anti-corrosion heat-conducting coating can also isolate the effect of high-temperature gas and flame on the metal wall surface of the inner cylinder body directly, and can protect the metal wall surface from overheating under the condition of water (steam) shortage, so that the safety of the heat exchanger is greatly improved. The high-temperature anti-corrosion heat-conducting coating in the technical scheme has the advantages that the material components of the high-temperature anti-corrosion heat-conducting coating are in the prior art, the coating can be purchased, and in practical application, the thickness of the high-temperature anti-corrosion heat-conducting coating on the inner wall of the inner cylinder body can be adjusted by technical personnel in the field according to the temperature of flue gas and the required heat exchange effect to ensure the heat exchange efficiency and prevent the condensation of flue gas condensation components.
The annular partition plate divides the hollow interlayer into an upper heat exchange area and a lower heat exchange area, and when heat exchange media enter the hollow interlayer from the water inlet, the annular partition plate enables the temperature of the fluid to be distributed, the heat transfer temperature difference is increased, and the heat exchange effect is improved.
In addition, it should be noted that, the connecting assembly in this technical scheme, its structure can be as shown in fig. 1, connect interior barrel and outer barrel from top to bottom, the structure of fixing the flue, also can be other structures, only need satisfy with the heat exchanger of this application install in the flue that needs the heat transfer can.
In another technical scheme, in the sleeve-type channel heat exchanger, the projections of the second water outlets 51 on two adjacent annular partition plates 5 at the bottom of the outer cylinder 1 are radially and symmetrically arranged relative to the outer cylinder 1.
Fig. 1 is a cross-sectional view, from which it can be seen that the second water outlets of the upper and lower adjacent annular partition plates are arranged left and right (with the direction in the plane of fig. 1 as a reference), and fig. 3 is a top view, from which it can be seen that the second water outlet of one of the annular partition plates is located on the right, so that the second water outlets are relatively staggered on the upper and lower adjacent partition plates, in order to enhance the mobility of water flow in the hollow interlayer when the water flow continuously flows out from the second water outlet of the next annular partition plate in the process of liquid entering the hollow interlayer from the water inlet, thereby improving the heat exchange efficiency.
In another technical solution, as shown in fig. 2, the wall surface of the inner cylinder 2 of the sleeve-type channel heat exchanger is provided with annular grooves 23 arranged at intervals along the axial direction of the inner cylinder, and each annular groove 23 is recessed towards the inside of the inner cylinder along the circumferential direction of the inner cylinder to form an arc shape. The interval of two adjacent annular grooves can be arranged at equal intervals and can also be adjusted according to actual conditions.
The wall of barrel sets up the level to annular groove among this technical scheme, annular groove and interior barrel coaxial line, and the annular groove is sunken to interior barrel inside, and its purpose is for the heat transfer area of barrel in increasing, more importantly because the liquid in the heat exchanger cavity intermediate layer produces steam because of the heat transfer, to the barrel pressure, and the annular groove of this indent can improve the bearing capacity of interior barrel.
In another technical scheme, the sleeve-type channel heat exchanger M is 6. The value of M, the size of the heat exchanger, the capacity required by heat exchange, the flue gas temperature and the like are set according to actual requirements.
In another technical scheme, the sleeve type channel heat exchanger is provided with a rock wool layer 7 outside the outer cylinder body. The rock wool layer has a good heat preservation effect, and heat loss of heat exchange liquid in the hollow interlayer can be reduced, so that the heat exchange efficiency is improved.
In another technical scheme, in the sleeve-type channel heat exchanger, the second water outlet 51 is arranged at one side close to the outer wall of the inner cylinder 2, the second water outlet 51 is fan-shaped, as shown in fig. 3, the second water outlet is the inner side of the annular partition plate, high-temperature flue gas is arranged in the inner cylinder, and the second water outlet is arranged close to the inner cylinder, so that when water flow is accelerated, the heat exchange efficiency of liquid is also improved.
In another technical scheme, in the sleeve-type channel heat exchanger, the distance between two adjacent annular partition plates of the M annular partition plates from bottom to top is gradually reduced. Because the water in the cavity intermediate layer can form saturated water and superheated steam after the heat exchange, so the first delivery port setting of cavity intermediate layer is on upper portion, and the water inlet setting is in the lower part, but because the flue gas also from down toward the circulation in this application, the high temperature flue gas is located the lower part, consequently, restricts the lower part in a period with more flowing water, more does benefit to the heat transfer of water.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. A shell and tube heat exchanger, comprising:
the outer cylinder body is vertically arranged, the outer cylinder body is hollow and cylindrical, a first opening is formed in the top of the outer cylinder body, a second opening is formed in the bottom of the outer cylinder body, a first water outlet is formed in the upper portion of the side wall of the outer cylinder body, and a water inlet is formed in the lower portion of the side wall of the outer cylinder body;
the inner cylinder is vertically arranged inside the outer cylinder, the inner cylinder is in a round table shape with a hollow interior and a small top and a big bottom, the top end of the inner cylinder is provided with an air outlet, the bottom end of the inner cylinder is provided with an air inlet, and the air inlet and the air outlet are respectively superposed with the second opening and the first opening so as to form a hollow interlayer between the inner wall of the outer cylinder and the outer wall of the inner cylinder;
the annular fins are arranged at equal intervals from top to bottom along the inner wall of the inner cylinder body, and the difference value between the outer circle radius and the inner circle radius of the annular fins is equal;
the high-temperature anti-corrosion heat-conducting coating is arranged on the inner wall of the inner cylinder and the surface of the annular fin;
the M annular partition plates are arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the hollow interlayer is divided into M +1 layers of heat exchange areas from top to bottom, a second water outlet is formed in each annular partition plate and is used for communicating two adjacent heat exchange areas, the first water outlet is communicated with the uppermost heat exchange area, and the water inlet is communicated with the lowermost heat exchange area;
and the connecting assembly is arranged at two ends of the outer cylinder body and is used for installing the outer cylinder body and the inner cylinder body in the channel.
2. The tube-in-tube heat exchanger according to claim 1, wherein the second water outlets of adjacent two annular partition plates are arranged radially symmetrically with respect to the outer cylinder in a projection onto the bottom of the outer cylinder.
3. The tube-in-tube heat exchanger according to claim 1, wherein the wall surface of the inner cylinder is provided with annular grooves provided at intervals in the axial direction of the inner cylinder, each of the annular grooves being curved in a manner recessed toward the inside of the inner cylinder in the circumferential direction of the inner cylinder.
4. The tube-in-tube heat exchanger according to claim 1, wherein M is 6.
5. The tube-in-tube heat exchanger according to claim 1, wherein the exterior of the outer cylinder is provided with a rock wool layer.
6. The tube-in-tube heat exchanger according to claim 2, wherein the second water outlet is provided at a side close to the outer wall of the inner cylinder, and the second water outlet is fan-shaped.
7. The tube-in-tube heat exchanger according to claim 2, wherein the M annular partition plates are gradually decreased in the interval between two adjacent annular partition plates from the bottom to the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922951.2U CN210321326U (en) | 2019-06-19 | 2019-06-19 | Sleeve type channel heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922951.2U CN210321326U (en) | 2019-06-19 | 2019-06-19 | Sleeve type channel heat exchanger |
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| Publication Number | Publication Date |
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| CN210321326U true CN210321326U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920922951.2U Active CN210321326U (en) | 2019-06-19 | 2019-06-19 | Sleeve type channel heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285695A (en) * | 2019-06-19 | 2019-09-27 | 武汉方特工业设备技术有限公司 | Telescopic channel heat exchanger |
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2019
- 2019-06-19 CN CN201920922951.2U patent/CN210321326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285695A (en) * | 2019-06-19 | 2019-09-27 | 武汉方特工业设备技术有限公司 | Telescopic channel heat exchanger |
| CN110285695B (en) * | 2019-06-19 | 2024-03-12 | 武汉方特工业设备技术有限公司 | Sleeve type channel heat exchanger |
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