CN111457762A - Heat exchanger with double tube boxes and double tube diameters - Google Patents
Heat exchanger with double tube boxes and double tube diameters Download PDFInfo
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- CN111457762A CN111457762A CN202010277681.1A CN202010277681A CN111457762A CN 111457762 A CN111457762 A CN 111457762A CN 202010277681 A CN202010277681 A CN 202010277681A CN 111457762 A CN111457762 A CN 111457762A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a thick and thin double-tube-diameter double-tube-box heat exchanger which can comprise a thin tube first tube box, a thin tube first tube plate, a thick tube first tube box, a thick tube first tube plate, a cylinder body, a pull rod, a distance tube, a baffle plate, a thick tube heat exchange tube, a thin tube heat exchange tube, a public tube box, a public tube plate, a thick tube second tube box, a thin tube second tube box, a thick tube second tube plate and a thin tube second tube plate. The heat exchange tube bundle is characterized in that the thick tube heat exchange tube is provided with a thin tube heat exchange tube, the thin tube heat exchange tube is inserted in the thick tube heat exchange tube, the turbulence degree of shell side medium scouring the tube bundle is increased, and the heat transfer effect of the heat exchange tube bundle is further improved.
Description
Technical Field
The invention relates to a heat exchanger, in particular to a thick-thin double-tube-diameter double-tube-box heat exchanger.
Background
In various industrial departments of national economy, such as petroleum, chemical industry, power, metallurgy, electronics, aerospace, light industry, transportation and the like, various heat transfer processes such as heating, cooling, distillation, heating and the like widely exist, and in petrochemical enterprises, the investment of a heat exchanger accounts for 35-50% of the total investment. For the heat exchanger, the heat exchange tube bundle is a core element of the heat exchanger and determines the heat exchange effect of the heat exchanger. Traditional heat exchange tube bank is shell and tube bank, in order to increase shell side heat transfer effect, adopts bow-shaped baffling board to change the flow direction of shell side medium, makes the fluid transversely erode shell and tube bank to reach high-efficient heat transfer effect.
In order to improve the shell pass heat exchange effect of the heat exchanger and improve the strength of a transverse scouring tube bundle, four tube distribution modes of regular triangle arrangement (30 degrees), corner regular triangle arrangement (60 degrees), square arrangement (90 degrees) and corner square arrangement (45 degrees) are adopted for the heat exchange tubes.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a thick-thin double-tube-diameter double-tube-box heat exchanger which can improve the heat transfer effect, increase the heat exchange area per unit volume, has small volume and can save the installation space.
According to the technical scheme provided by the invention, the thick-thin double-tube-diameter double-tube-box heat exchanger can comprise a thin-tube first tube box, a thin-tube first tube plate, a thick-tube first tube box, a thick-tube first tube plate, a cylinder body, a pull rod, a distance tube, a baffle plate, a thick-tube heat exchange tube, a thin-tube heat exchange tube, a public tube box and a public tube plate;
a thick tube first tube plate and a thick tube first tube box are fixed at one end of the barrel, a thin tube first tube box and a thin tube first tube plate are fixed on the thick tube first tube box, a common tube box and a common tube plate are fixed at the other end of the barrel, thick tube heat exchange tubes are arranged on the common tube plate and the thick tube first tube plate, thin tube heat exchange tubes are arranged on the common tube plate and the thin tube first tube plate, the thin tube heat exchange tubes penetrate through the thick tube first tube plate to be sealed and fixed, and the thin tube heat exchange tubes are inserted between the adjacent thick tube heat exchange tubes;
the cylinder body is internally provided with a pull rod, a distance tube and a baffle plate, the side walls of two end parts of the cylinder body are respectively fixed with a first shell pass medium inlet and outlet and a second shell pass medium inlet and outlet, the side wall of a first tube box of a thick tube is fixed with a first tube pass medium inlet and outlet, and the side wall of the first tube box of a thin tube is fixed with a first tube pass medium inlet and outlet.
Preferably, the thick tube heat exchange tubes are arranged in a regular triangle, and the thin tube heat exchange tubes are inserted in the center of the regular triangle.
Preferably, the thick tube heat exchange tubes are arranged in a square shape, and the thin tube heat exchange tubes are inserted in the center of the square shape.
Preferably, the cylinder is arranged vertically or horizontally.
According to the technical scheme provided by the invention, the thick-thin double-tube-diameter double-tube-box heat exchanger can further comprise a thin-tube first tube box, a thin-tube first tube plate, a thick-tube first tube box, a thick-tube first tube plate, a cylinder body, a pull rod, a distance tube, a baffle plate, a thick-tube heat exchange tube, a thin-tube heat exchange tube, a thick-tube second tube box, a thin-tube second tube box, a thick-tube second tube plate and a thin-tube second tube plate;
a thick tube first tube plate and a thick tube first tube box are fixed at one end of the barrel, a thin tube first tube box and a thin tube first tube plate are fixed on the thick tube first tube box, a thick tube second tube box and a thick tube second tube plate are fixed at the other end of the barrel, a thin tube second tube box and a thin tube second tube plate are fixed on the thick tube second tube box, thick tube heat exchange tubes are installed on the thick tube second tube plate and the thick tube first tube plate, thin tube heat exchange tubes are installed on the thin tube second tube plate and the thin tube first tube plate, the heat exchange tubes penetrate through the thick tube first tube plate and are fixed in a sealing manner, the thin tube heat exchange tubes penetrate through the thick tube second tube plate and are fixed in a sealing manner, and the thin tubes penetrate between the adjacent thick tube heat exchange tubes;
the side walls of two end parts of the cylinder body are respectively fixed with a first shell pass medium inlet and outlet and a second shell pass medium inlet and outlet, the side wall of the first thick tube box is fixed with a first thick tube pass medium inlet and outlet, the side wall of the second thick tube box is fixed with a second thick tube pass medium inlet and outlet, the side wall of the first thin tube box is fixed with a first thin tube pass medium inlet and outlet, and the side wall of the second thin tube box is fixed with a second thin tube pass medium inlet and outlet.
Preferably, the thick tube heat exchange tubes are arranged in a regular triangle, and the thin tube heat exchange tubes are inserted in the center of the regular triangle.
Preferably, the thick tube heat exchange tubes are arranged in a square shape, and the thin tube heat exchange tubes are inserted in the center of the square shape.
Preferably, the cylinder is arranged vertically or horizontally.
The heat exchange tube bundle is characterized in that the thick tube heat exchange tube is provided with a thin tube heat exchange tube, the thin tube heat exchange tube is inserted in the thick tube heat exchange tube, the turbulence degree of shell side medium scouring the tube bundle is increased, and the heat transfer effect of the heat exchange tube bundle is further improved.
Compared with the traditional heat exchanger, the heat exchange tube is divided into a thick tube heat exchange tube and a thin tube heat exchange tube, the thick tube heat exchange tube and the thin tube heat exchange tube are respectively provided with the tube box, the condition that fluid in the heat exchange tube is unevenly distributed due to different tube diameters of the heat exchange tube is effectively avoided, meanwhile, the thick tube heat exchange tube and the thin tube heat exchange tube can flow different media, and further the medium and the shell side medium in the thick tube heat exchange tube and the medium and the shell side medium in the thin tube heat exchange tube are simultaneously subjected to heat exchange.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a layout view of a thick tube heat exchange tube and a thin tube heat exchange tube in example 1.
Fig. 3 is a layout diagram of example 1 at a tubule chamber.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 5 is a layout view of a thick tube heat exchange tube and a thin tube heat exchange tube in example 2.
Fig. 6 is a layout view at a tubule chamber box according to example 2.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
A double-tube box heat exchanger with thick and thin double tube diameters is shown in figures 1, 2 and 3 and is arranged vertically and comprises a first thin tube box 1, a first thin tube plate 2, a first thick tube box 3, a first thick tube plate 4, a cylinder body 5, a pull rod 6, a distance tube 7, a baffle plate 8, a heat exchange tube 9 with thick tubes, a heat exchange tube 10 with thin tubes, a common tube box 15 and a common tube plate 16;
a thick tube first tube plate 4 and a thick tube first tube box 3 are fixed at one end of a cylinder 5, a thin tube first tube box 1 and a thin tube first tube plate 2 are fixed on the thick tube first tube box 3, a common tube box 15 and a common tube plate 16 are fixed at the other end of the cylinder 5, thick tube heat exchange tubes 9 are installed on the common tube plate 16 and the thick tube first tube plate 4, thin tube heat exchange tubes 10 are installed on the common tube plate 16 and the thin tube first tube plate 2, the thin tube heat exchange tubes 10 penetrate through the thick tube first tube plate 4 to be sealed and fixed, and the thin tube heat exchange tubes 10 penetrate between the adjacent thick tube heat exchange tubes 9;
the cylinder 5 is internally provided with a pull rod 6, a distance tube 7 and a baffle plate 8, the side walls of two end parts of the cylinder 5 are respectively fixed with a first shell pass medium inlet/outlet N1 and a second shell pass medium inlet/outlet N2, the side wall of the first thick tube box 3 is fixed with a first thick tube pass medium inlet/outlet N3, and the side wall of the first thin tube box 1 is fixed with a first thin tube pass medium inlet/outlet N5.
The thick tube heat exchange tubes 9 are arranged in a square shape, and the thin tube heat exchange tubes 10 are inserted in the center of the square shape.
When the heat exchanger works, a tube pass medium flows into the first thick tube box 3 from the N3 tube orifice, is distributed into the thick tube heat exchange tubes 9 through the tube box for heat exchange, flows into the common tube box 15 and then is redistributed and flows into the thin tube heat exchange tubes 10 for heat exchange again, and the medium flows into the first thin tube box 1 and then flows out of the heat exchanger through the N4.
During specific implementation, the thick-tube heat exchange tube 9 with the size of phi 19 × 2mm is inserted into the thick-tube heat exchange tube 9 bundle, the thin-tube heat exchange tube 10 with the size of phi 12 × 1.5.5 mm is inserted into the thick-tube heat exchange tube 9 bundle, the shell pass inner diameter (namely the inner diameter of the cylinder 5) is phi 500mm, the shell pass length is 3000mm, and the heat exchange area of the heat exchanger is 62.9m2Shell side mediumThe tube pass media of the thick tube heat exchange tube 9 and the thin tube heat exchange tube 10 are all hydrogen chloride gas with inlet and outlet temperatures of-52/-15 ℃, and the tube pass fluid performs countercurrent heat exchange. Engineering results show that the shell-side medium of the tube is gas, the gas medium forms a gas film shape in a laminar flow state at the edge of the metal wall, heat transfer convection is poor, and large thermal resistance is generated, but the flow channel of the heat exchanger disclosed by the invention is complex and changeable, so that the shell-side gas scours the tube bundle more violently, the requirement of heat exchange can be realized, the heat exchange area is 29.8% more than that of a traditional heat exchanger with the same volume, and the heat exchange amount is about 33% higher than that of the traditional heat exchanger with the same volume.
Example 2
A double-tube box heat exchanger with thick and thin double tube diameters is shown in figures 4, 5 and 6 and is arranged vertically and comprises a thin tube first tube box 1, a thin tube first tube plate 2, a thick tube first tube box 3, a thick tube first tube plate 4, a cylinder body 5, a pull rod 6, a distance tube 7, a baffle plate 8, a thick tube heat exchange tube 9, a thin tube heat exchange tube 10, a thick tube second tube box 11, a thin tube second tube box 12, a thick tube second tube plate 13 and a thin tube second tube plate 14;
a thick tube first tube plate 4 and a thick tube first tube plate 3 are fixed at one end of a cylinder 5, a thin tube first tube plate 1 and a thin tube first tube plate 2 are fixed on the thick tube first tube plate 3, a thick tube second tube plate 11 and a thick tube second tube plate 13 are fixed at the other end of the cylinder 5, a thin tube second tube plate 12 and a thin tube second tube plate 14 are fixed on the thick tube second tube plate 11, a thick tube heat exchange tube 9 is installed on the thick tube second tube plate 13 and the thick tube first tube plate 4, a thin tube heat exchange tube 10 is installed on the thin tube second tube plate 14 and the thin tube first tube plate 2, the thin tube heat exchange tube 10 passes through the thick tube first tube plate 4 and is fixed in a sealing manner, the thin tube heat exchange tube 10 passes through the thick tube second tube plate 13 and is fixed in a sealing manner, and the thin tube heat exchange tube 10 is inserted between the adjacent thick tube heat exchange;
the pull rod 6, the distance tube 7 and the baffle plate 8 are arranged in the cylinder 5, a first shell pass medium inlet and outlet N1 and a second shell pass medium inlet and outlet N2 are respectively fixed on the side walls of two end parts of the cylinder 5, a first thick tube pass medium inlet and outlet N3 is fixed on the side wall of the thick tube first tube box 3, a second thick tube pass medium inlet and outlet N4 is fixed on the side wall of the thick tube second tube box 11, a first thin tube pass medium inlet and outlet N5 is fixed on the side wall of the thin tube first tube box 1, and a second thin tube pass medium inlet and outlet N6 is fixed on the side wall of the thin tube second tube box 12.
The thick tube heat exchange tubes 9 are arranged in a regular triangle, and the thin tube heat exchange tubes 10 are inserted in the center of the regular triangle.
The medium on the tube side of the thick tube flows into the lower tube box 3 of the thick tube from the N3 tube orifice, is distributed into the heat exchange tube 9 of the thick tube through the tube box for heat exchange, flows into the upper tube box 11 of the thick tube and then flows out of the heat exchanger through N4; the medium on the thin tube side flows into the thin tube lower tube box 1 from the N5 tube orifice, is distributed into the thin tube heat exchange tube 10 through the tube box for heat exchange, flows into the thin tube upper tube box 12 and then flows out of the heat exchanger through N6; the medium of the thick tube pass and the medium of the thin tube pass can be the same or different according to the process requirements.
During specific implementation, the size of the thick-tube heat exchange tube 9 is phi 19 × 2mm, the thin-tube heat exchange tube 10 is inserted into the tube bundle of the thick-tube heat exchange tube 9, the size of the thin-tube heat exchange tube 10 is phi 12 × 1.5.5 mm, the shell pass inner diameter (namely the inner diameter of the cylinder 5) is phi 500mm, the shell pass length is 3000mm, and the heat exchange area of the heat exchanger is 77.9m2(ii) a The shell pass medium is ethylene glycol with inlet and outlet temperatures of-71.3/-90 ℃, the tube pass medium of the thick tube heat exchange tube 9 and the thin tube heat exchange tube 10 is liquid nitrogen with inlet and outlet temperatures of-170/-85 ℃, and the shell pass fluid performs countercurrent heat exchange. The engineering result shows that the glycol of the heat exchanger of the embodiment can be fully cooled, the heat exchange area is 41.9 percent more than that of the traditional heat exchanger with the same volume, and the heat exchange amount is about 48.3 percent higher than that of the traditional heat exchanger with the same volume.
Example 3
The heat exchanger structure of the present embodiment is the same as that of embodiment 2, except that: the heat exchanger of this embodiment is in a horizontal arrangement.
During specific implementation, the size of the thick-tube heat exchange tube 9 is phi 19 × 2mm, the thin-tube heat exchange tube 10 is inserted into the tube bundle of the thick-tube heat exchange tube 9, the size of the thin-tube heat exchange tube 10 is phi 12 × 1.5.5 mm, the shell pass inner diameter (namely the inner diameter of the cylinder 5) is phi 400mm, the shell pass length is 2500mm, and the heat exchange surface of the heat exchanger isProduct of 37.1m2The shell pass medium is steam with the temperature of 100 ℃, the tube pass media of the thick tube heat exchange tube 9 and the thin tube heat exchange tube 10 are nitrogen with the inlet and outlet temperature of-80/150 ℃, and the shell pass fluid performs countercurrent heat exchange. Engineering results show that shell-side steam passes through the shell-side complex flow channel, so that shell-side fluid transversely scours the tube bundle for multiple times, the turbulence degree of the shell-side fluid is improved, the area of the tube-side flow channel is increased, and nitrogen is fully heated. The heat exchange area is 28.9 percent more than that of the traditional heat exchanger with the same volume, and the heat exchange quantity is about 31.5 percent more than that of the traditional heat exchanger with the same volume.
In the invention, if regular triangles or corner regular triangles are adopted for arrangement, the tube pitch of the thick tube heat exchange tubes 9 is more than 1.6 times of the outer tube diameter of the thick tube heat exchange tubes 9, and if square or corner square arrangement is adopted, the tube pitch of the thick tube heat exchange tubes 9 is more than 1.4 times of the outer tube diameter of the thick tube heat exchange tubes 9. The external diameter of the thick tube heat exchange tube 9 has the following series: 10mm, 12mm, 14mm, 16 mm, 19mm, 20 mm, 22 mm, 25 mm, 30 mm, 32mm, 35 mm, 38 mm, 45 mm, 50 mm, 55 mm, 57mm, the thin tube heat exchange tube 10 selects the heat exchange tube which is smaller than the thick tube heat exchange tube 9 by three grades to be inserted into the thick tube heat exchange tube 9.
As shown in fig. 2 and 3, if the thick-tube heat exchange tubes 9 are arranged in a square shape, the thick-tube heat exchange tubes 9 are heat exchange tubes with an outer diameter of 19mm, the thin-tube heat exchange tubes 10 are heat exchange tubes with an outer diameter of 12mm, and the tube spacing is set to be 28 mm.
As shown in fig. 5 and 6, if the thick tube heat exchange tubes 9 are arranged in a regular triangle, the thick tube heat exchange tubes 9 are heat exchange tubes with an outer diameter of 19mm, the thin tube heat exchange tubes 10 are heat exchange tubes with an outer diameter of 12mm, and the tube spacing is set to be 32 mm.
The invention belongs to a shell-and-tube heat exchanger, a tube pass heat exchange tube and a tube plate are connected, a shell pass shell and the tube plate are the same as the traditional shell-and-tube heat exchanger, and the shell-and-tube heat exchanger can be designed according to the GB/T151-2014 heat exchanger specification.
Claims (5)
1. A double-tube-box heat exchanger with a thick tube and a thin tube comprises a thin tube first tube box (1), a thin tube first tube plate (2), a thick tube first tube box (3), a thick tube first tube plate (4), a cylinder body (5), a pull rod (6), a distance tube (7), a baffle plate (8), a thick tube heat exchange tube (9), a thin tube heat exchange tube (10), a public tube box (15) and a public tube plate (16); the method is characterized in that:
a thick tube first tube plate (4) and a thick tube first tube plate (3) are fixed at one end of a cylinder body (5), a thin tube first tube plate (1) and a thin tube first tube plate (2) are fixed on the thick tube first tube plate (3), a common tube box (15) and a common tube plate (16) are fixed at the other end of the cylinder body (5), thick tube heat exchange tubes (9) are installed on the common tube plate (16) and the thick tube first tube plate (4), thin tube heat exchange tubes (10) are installed on the common tube plate (16) and the thin tube first tube plate (2), the thin tube heat exchange tubes (10) penetrate through the thick tube first tube plate (4) to be sealed and fixed, and the thin tube heat exchange tubes (10) penetrate between the adjacent thick tube heat exchange tubes (9);
the novel thin tube type gas-liquid separator is characterized in that a pull rod (6), a distance tube (7) and a baffle plate (8) are installed in a cylinder body (5), a first shell pass medium inlet and outlet (N1) and a second shell pass medium inlet and outlet (N2) are respectively fixed on the side walls of two end portions of the cylinder body (5), a first thick tube pass medium inlet and outlet (N3) is fixed on the side wall of a thick tube first tube box (3), and a first thin tube pass medium inlet and outlet (N5) is fixed on the side wall of a thin tube first tube box (1).
2. A double-tube-box heat exchanger with a thick tube and a thin tube comprises a thin tube first tube box (1), a thin tube first tube plate (2), a thick tube first tube box (3), a thick tube first tube plate (4), a cylinder body (5), a pull rod (6), a distance tube (7), a baffle plate (8), a thick tube heat exchange tube (9), a thin tube heat exchange tube (10), a thick tube second tube box (11), a thin tube second tube box (12), a thick tube second tube plate (13) and a thin tube second tube plate (14); the method is characterized in that:
a first tube plate (4) of a thick tube and a first tube box (3) of the thick tube are fixed at one end part of the cylinder body (5), a first tube box (1) of a thin tube and a first tube plate (2) of the thin tube are fixed on the first tube box (3) of the thick tube, a second tube box (11) of a thick tube and a second tube plate (13) of the thick tube are fixed at the other end of the cylinder body (5), a second tube box (12) of a thin tube and a second tube plate (14) of the thin tube are fixed on the second tube box (11) of the thick tube, a thick tube heat exchange tube (9) is arranged on the thick tube second tube plate (13) and the thick tube first tube plate (4), the second tube plate (14) and the first tube plate (2) are provided with the thin tube heat exchange tube (10), the thin tube heat exchange tube (10) penetrates through the first tube plate (4) of the thick tube to be sealed and fixed, the thin tube heat exchange tube (10) penetrates through the second tube plate (13) of the thick tube to be sealed and fixed, the thin tube heat exchange tubes (10) are inserted between the adjacent thick tube heat exchange tubes (9);
the novel tube bundle filter is characterized in that a pull rod (6), a distance tube (7) and a baffle plate (8) are installed in a tube body (5), a first shell pass medium inlet and outlet (N1) and a second shell pass medium inlet and outlet (N2) are fixed on the side walls of two end portions of the tube body (5) respectively, a first thick tube pass medium inlet and outlet (N3) is fixed on the side wall of a thick tube first tube box (3), a second thick tube pass medium inlet and outlet (N4) is fixed on the side wall of a thick tube second tube box (11), a first thin tube pass medium inlet and outlet (N5) is fixed on the side wall of a thin tube first tube box (1), and a second thin tube pass medium inlet and outlet (N6) is fixed on the side wall of a thin tube second tube box (12).
3. The double tube box heat exchanger of thick and thin double tube diameters as claimed in claim 1 or 2, wherein: the thick-tube heat exchange tubes (9) are arranged in a regular triangle or corner regular triangle, and the thin-tube heat exchange tubes (10) are inserted in the center of the regular triangle.
4. The double tube box heat exchanger of thick and thin double tube diameters as claimed in claim 1 or 2, wherein: the thick tube heat exchange tubes (9) are arranged in a square or corner square mode, and the thin tube heat exchange tubes (10) are inserted in the center of the square.
5. The double tube box heat exchanger of thick and thin double tube diameters as claimed in claim 1 or 2, wherein: the cylinder body (5) is arranged vertically or horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277681.1A CN111457762A (en) | 2020-04-08 | 2020-04-08 | Heat exchanger with double tube boxes and double tube diameters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277681.1A CN111457762A (en) | 2020-04-08 | 2020-04-08 | Heat exchanger with double tube boxes and double tube diameters |
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| CN111457762A true CN111457762A (en) | 2020-07-28 |
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| CN202010277681.1A Pending CN111457762A (en) | 2020-04-08 | 2020-04-08 | Heat exchanger with double tube boxes and double tube diameters |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964489A (en) * | 2020-08-17 | 2020-11-20 | 肖美占 | High-efficiency heat exchanger capable of improving differentiation of cross sectional areas among different heat exchange tubes |
| CN114608357A (en) * | 2022-02-25 | 2022-06-10 | 胡开艳 | Unequal-diameter connecting pipe type shell-and-tube heat exchanger |
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| US6113782A (en) * | 1998-07-28 | 2000-09-05 | Terumo Cardiovascular Systems Corporation | Potting of tubular bundles in housing |
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| US20190154343A1 (en) * | 2017-11-21 | 2019-05-23 | Valor Services Llc | Multiple pass or multiple fluid heat exchange apparatus and method for using same |
| CN110514031A (en) * | 2019-07-15 | 2019-11-29 | 合肥通用机械研究院有限公司 | A kind of compound tube formula deep cooling working medium gasification heat exchange equipment |
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| CN114608357B (en) * | 2022-02-25 | 2024-01-09 | 深圳市新昌晶鑫金属制品有限公司 | Unequal diameter connecting tube type shell-and-tube heat exchanger |
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