CN217236543U - Heat exchange system with double cold sources for heat exchange in parallel - Google Patents
Heat exchange system with double cold sources for heat exchange in parallel Download PDFInfo
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- CN217236543U CN217236543U CN202220170385.6U CN202220170385U CN217236543U CN 217236543 U CN217236543 U CN 217236543U CN 202220170385 U CN202220170385 U CN 202220170385U CN 217236543 U CN217236543 U CN 217236543U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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Abstract
The utility model provides a heat exchange system with double cold sources for heat exchange in parallel, which comprises a shell barrel, two heat exchange tube bundles, 6 inlets and outlets and a plurality of tube box flanges, wherein the 6 inlets and outlets are an air inlet, an air outlet, a cooling water inlet, a cooling water outlet, a water inlet and a water outlet, are all arranged on the shell barrel and are respectively connected with an outer tube through the tube box flanges; the two heat exchange tube bundles are arranged in the shell barrel in parallel, the inlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water inlet and a water inlet, the outlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water outlet and a water outlet, the cooling water inlet and the cooling water outlet are connected with an external circulating cooling water supply device, and the water inlet and the water outlet are connected with an external low-temperature cooling water supply device; the inner space between the heat exchange tube bundle and the inner wall of the shell cylinder is a high-temperature compressed air circulation area. The utility model can effectively reduce the cooling water consumption in the oil refining chemical process; the cold source side adopts a double-system parallel operation mode; the heat exchange temperature difference is reduced, and the energy consumption is reduced.
Description
Technical Field
The utility model relates to a heat transfer technical field especially relates to a heat exchange system of parallelly connected heat transfer of two cold sources.
Background
At present, a large amount of heat is needed in petrochemical industry, and the heat is cooled through a circulating water heat exchanger, so that the requirements of production and operation processes are met. The cold end of the heat exchanger consumes a large amount of circulating water, so that the energy consumption is high; based on the background, a heat exchanger with a cold source for heat exchange in parallel is developed, wherein the cold source of the heat exchanger adopts cooling media with different temperatures, and cooling conditions are matched according to different temperature positions of materials on a process side, so that heat loss is reduced to the greatest extent.
SUMMERY OF THE UTILITY MODEL
In light of the above-mentioned technical problems, a heat exchange system with two cold sources connected in parallel for heat exchange is provided. The utility model discloses mainly through the material temperature of technology, match suitable cold source, the cold source side adopts dual system parallel operation mode to reduce the heat transfer difference in temperature, reduce the energy consumption, the cooling water consumption in the effectual reduction oil refining chemical industry technology.
The utility model discloses a technical means as follows:
a heat exchange system for parallel heat exchange of double cold sources comprises: the heat exchanger comprises a shell cylinder, two heat exchange tube bundles, 6 inlets and outlets and a plurality of tube box flanges, wherein the 6 inlets and outlets are an air inlet, an air outlet, a cooling water inlet, a cooling water outlet, a water inlet and a water outlet, are all arranged on the shell cylinder and are respectively connected with an outer tube through the tube box flanges; the two heat exchange tube bundles are arranged in the shell barrel in parallel, the inlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water inlet and a water inlet, the outlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water outlet and a water outlet, the cooling water inlet and the cooling water outlet are connected with an external circulating cooling water supply device, the water inlet and the water outlet are connected with an external low-temperature cooling water supply device, circulating cooling water and low-temperature cooling water are respectively introduced into the two heat exchange tube bundles through the cooling water inlet and the water inlet, and after circulating circulation of the circulating cooling water and the low-temperature cooling water in the two heat exchange tube bundles, the circulating cooling water and the low-temperature cooling water respectively flow back to the external circulating cooling water supply device and the external low-temperature cooling water supply device through the cooling water outlet and the water outlet; the inner space between the heat exchange tube bundle and the inner wall of the shell cylinder is a high-temperature compressed air circulation area, and high-temperature compressed air is introduced into the inner space through an air inlet and flows out through an air outlet after heat exchange.
Furthermore, cooling water inlet, cooling water outlet, water inlet and water outlet set up in same one side, all install on same fixed block, and the fixed block is fixed at the one end tip of casing barrel.
Further, the cooling water outlet and the water outlet are located obliquely above the cooling water inlet and the water inlet.
Furthermore, a discharge port I and a discharge port II are arranged above the fixed block, a discharge port III and a discharge port IV are arranged below the fixed block, the discharge port I and the discharge port II are respectively communicated with the water outlet and the cooling water outlet, and the discharge port III and the discharge port IV are respectively communicated with the water inlet and the cooling water inlet.
Further, the air inlet is arranged on one side close to the fixed block, and the air outlet is arranged on one side far away from the fixed block.
Furthermore, the air inlet is obliquely arranged on the shell barrel, and the included angle theta between the central axis of the air inlet and the horizontal plane is 30 degrees; the air outlet is vertically arranged at the top of the shell cylinder.
Further, the heat exchange tube bundle is of a U-shaped structure.
Furthermore, the bottom of the shell cylinder body is also provided with a water outlet which is positioned at the air outlet side.
Further, the temperature of the circulating cooling water is 33 ℃; the temperature of the low-temperature cooling water is 5 ℃.
Further, before heat exchange, the temperature of the high-temperature compressed air is 100 ℃; after heat exchange, the temperature of the high-temperature compressed air is 45 ℃.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a heat exchange system of parallelly connected heat transfer of two cold sources can the effectual cooling water consumption that reduces in the oil refining chemical industry technology.
2. The heat exchange system for the double-cold-source parallel heat exchange provided by the utility model matches a proper cold source through the material temperature of the process, and the cold source side adopts a double-system parallel operation mode; the heat exchange temperature difference is reduced, and the energy consumption is reduced.
Based on the reason, the utility model discloses can extensively promote in fields such as petrochemical heat exchanger system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
In the figure: 1. a pipe box flange; 2. a heat exchange tube bundle; 3. a housing cylinder; 4. an air inlet; 5. an air outlet; 6. a cooling water inlet; 7. a cooling water outlet; 8. a water inlet; 9. a water outlet; 10. a water outlet; 11. a discharge port I; 12. a discharge outlet II; 13. a discharge port III; 14. and a discharge port IV.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model provides a heat exchange system of parallelly connected heat transfer of two cold sources, constitute through the installation of welding form, include: the heat exchanger comprises a shell cylinder 3, two heat exchange tube bundles 2, 6 inlets and outlets, a plurality of tube box flanges 1 and the like. The 6 inlets and outlets are an air inlet 4, an air outlet 5, a cooling water inlet 6, a cooling water outlet 7, a water inlet 8 and a water outlet 9 which are all arranged on the shell cylinder 3 and are respectively connected with the outer pipe through the pipe box flange 1; the two heat exchange tube bundles 2 are arranged in the shell barrel 3 in parallel, the inlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water inlet 6 and a water inlet 8, the outlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water outlet 7 and a water outlet 9, the cooling water inlet 6 and the cooling water outlet 7 are connected with an external circulating cooling water supply device, the water inlet 8 and the water outlet 9 are connected with an external low-temperature cooling water supply device, circulating cooling water and low-temperature cooling water are respectively introduced into the two heat exchange tube bundles 2 through the cooling water inlet 6 and the water inlet 8, and the circulating cooling water and the low-temperature cooling water respectively flow back to the external circulating cooling water supply device and the external low-temperature cooling water supply device through the cooling water outlet 7 and the water outlet 9 after circulating in the two heat exchange tube bundles 2; the inner space between the heat exchange tube bundle 2 and the inner wall of the shell barrel 3 is a high-temperature compressed air circulation area, and high-temperature compressed air is introduced into the inner space through an air inlet 4 and flows out through an air outlet 5 after heat exchange.
In a preferred embodiment, the cooling water inlet 6, the cooling water outlet 7, the water inlet 8 and the water outlet 9 are disposed on the same side (disposed on the left side in fig. 1), and are all mounted on the same fixed block, and the fixed block is fixed to one end (the left end) of the housing cylinder 3.
In a preferred embodiment, the cooling water outlet 7 and the water outlet 9 are located obliquely above the cooling water inlet 6 and the water inlet 8.
In a preferred embodiment, a discharge port I11 and a discharge port II 12 are arranged above the fixed block, a discharge port III 13 and a discharge port IV 14 are arranged below the fixed block, the discharge port I11 and the discharge port II 12 are respectively communicated with the water outlet 9 and the cooling water outlet 7, and the discharge port III 13 and the discharge port IV 14 are respectively communicated with the water inlet 8 and the cooling water inlet 6.
As a preferred embodiment, the air inlet 4 is provided at a side (left side) close to the fixed block, and the air outlet 5 is provided at a side (right side) far from the fixed block.
As a preferred embodiment, the air inlet 4 is obliquely installed on the shell cylinder 3, and an included angle θ between a central axis of the air inlet and a horizontal plane is 30 degrees; the air outlet 5 is vertically installed at the top of the housing cylinder 3.
In a preferred embodiment, the heat exchange tube bundle 2 has a U-shaped configuration.
In a preferred embodiment, the bottom of the housing cylinder 3 is further provided with a water outlet 10, and the water outlet 10 is located on the air outlet 5 side.
In a preferred embodiment, the temperature of the circulating cooling water is 33 ℃; the temperature of the low-temperature cooling water is 5 ℃.
As a preferred embodiment, the temperature of the high-temperature compressed air is 100 ℃ before heat exchange; after heat exchange, the temperature of the high-temperature compressed air is 45 ℃.
The utility model discloses two cold source heat exchangers are through two kinds of different coolant, cool off the refrigerated heat exchanger of technology side.
The utility model discloses a heat transfer process:
the tube bundle is divided into two parts for independent heat exchange, wherein a medium on one side is circulating cooling water (water enters at 33 degrees), a medium on the other side is low-temperature cooling water (water enters at 5 degrees), and the two parts respectively flow through the inner flow of the heat exchange tube bundle; compressed air is introduced between the outside of the heat exchange tube bundle and the inner wall of the shell cylinder, and the temperature of the high-temperature compressed air is adjusted from 100 ℃ to 45 ℃ after heat exchange. Because the outlet temperature of the air compressor is high, the heat exchanger (heat exchange system) can be designed to reduce the air temperature by adjusting the amount of circulating water, two sets of heat exchange tube bundles are designed to exchange heat together, the heat exchange process with small heat can be only carried out by cooling the circulating water, and when the heat exchange amount is large, the heat exchanger is completely put into operation, so that the use amount of low-temperature cooling water is reduced; the cost of the low-temperature cooling water is 0.4 yuan/t, and the cost of the circulating cooling water is 0.08 yuan/t, so that the operating cost is greatly reduced.
The utility model discloses the technique can extensively be promoted in design lectotype and application from now on, provides new theory for petrochemical heat exchanger lectotype, from energy saving and consumption reduction angle, can practice thrift the consumption of low temperature cold source.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (10)
1. A heat exchange system for double cold sources parallel heat exchange is characterized by comprising: the heat exchanger comprises a shell cylinder (3), two heat exchange tube bundles (2), 6 inlets and outlets and a plurality of tube box flanges (1), wherein the 6 inlets and outlets are an air inlet (4), an air outlet (5), a cooling water inlet (6), a cooling water outlet (7), a water inlet (8) and a water outlet (9) which are all arranged on the shell cylinder (3) and are respectively connected with an outer tube through the tube box flanges (1); the two heat exchange tube bundles (2) are arranged in the shell barrel (3) in parallel, inlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water inlet (6) and a water inlet (8), outlet ends of the two heat exchange tube bundles are respectively communicated with a cooling water outlet (7) and a water outlet (9), the cooling water inlet (6) and the cooling water outlet (7) are connected with an external circulating cooling water supply device, the water inlet (8) and the water outlet (9) are connected with an external low-temperature cooling water supply device, circulating cooling water and low-temperature cooling water are respectively introduced into the two heat exchange tube bundles (2) through the cooling water inlet (6) and the water inlet (8), and after circulating circulation in the two heat exchange tube bundles (2), the circulating cooling water and the low-temperature cooling water respectively flow back to the external circulating cooling water supply device and the external low-temperature cooling water supply device through the cooling water outlet (7) and the water outlet (9); the internal space between the heat exchange tube bundle (2) and the inner wall of the shell barrel (3) is a high-temperature compressed air circulation area, and high-temperature compressed air is introduced into the internal space through an air inlet (4) and flows out through an air outlet (5) after heat exchange.
2. The heat exchange system with the double cold sources for the parallel heat exchange according to claim 1, wherein the cooling water inlet (6), the cooling water outlet (7), the water inlet (8) and the water outlet (9) are arranged on the same side and are all mounted on the same fixed block, and the fixed block is fixed at one end of the shell barrel (3).
3. The heat exchange system with double cold sources and heat exchange in parallel as recited in claim 2, wherein the cooling water outlet (7) and the water outlet (9) are located obliquely above the cooling water inlet (6) and the water inlet (8).
4. The heat exchange system with the double cold sources connected in parallel for heat exchange according to claim 2, wherein a discharge port I (11) and a discharge port II (12) are arranged above the fixed block, a discharge port III (13) and a discharge port IV (14) are arranged below the fixed block, the discharge port I (11) and the discharge port II (12) are respectively communicated with the water outlet (9) and the cooling water outlet (7), and the discharge port III (13) and the discharge port IV (14) are respectively communicated with the water inlet (8) and the cooling water inlet (6).
5. The heat exchange system with double cold sources for heat exchange in parallel according to claim 2, wherein the air inlet (4) is arranged at one side close to the fixed block, and the air outlet (5) is arranged at one side far from the fixed block.
6. The heat exchange system with the double cold sources for the parallel heat exchange according to claim 5, wherein the air inlet (4) is obliquely arranged on the shell cylinder (3), and the included angle theta between the central axis and the horizontal plane is 30 degrees; the air outlet (5) is vertically arranged at the top of the shell cylinder (3).
7. The heat exchange system with double cold sources for parallel heat exchange according to claim 1, characterized in that the heat exchange tube bundle (2) is in a U-shaped structure.
8. The heat exchange system with double cold sources and heat exchange in parallel as recited in claim 1, wherein the bottom of the shell cylinder (3) is further provided with a water outlet (10), and the water outlet (10) is located at the side of the air outlet (5).
9. The heat exchange system with double cold sources for heat exchange in parallel according to claim 1, wherein the temperature of the circulating cooling water is 33 degrees; the temperature of the low-temperature cooling water is 5 ℃.
10. The heat exchange system with double cold sources for heat exchange in parallel according to claim 1, wherein the temperature of the high-temperature compressed air is 100 degrees before heat exchange; after heat exchange, the temperature of the high-temperature compressed air is 45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170385.6U CN217236543U (en) | 2022-01-21 | 2022-01-21 | Heat exchange system with double cold sources for heat exchange in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170385.6U CN217236543U (en) | 2022-01-21 | 2022-01-21 | Heat exchange system with double cold sources for heat exchange in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217236543U true CN217236543U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220170385.6U Active CN217236543U (en) | 2022-01-21 | 2022-01-21 | Heat exchange system with double cold sources for heat exchange in parallel |
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| CN (1) | CN217236543U (en) |
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- 2022-01-21 CN CN202220170385.6U patent/CN217236543U/en active Active
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