A detachable microchannel heat exchanger

Abstract

The present invention discloses a detachable microchannel heat exchanger, including a microchannel heat exchanger body, wherein the microchannel heat exchanger body is composed of a first body and a second body, wherein the first body is provided with a first insulation component, and the second body is provided with a second insulation component, and one end of the first insulation component is connected to one end of the second insulation component. The present invention realizes the rapid installation and disassembly of the microchannel heat exchanger by setting the first insulation component, the second insulation component and the locking mechanism through multiple clamping, so that damaged parts can be replaced accordingly, reducing production costs, and the entire microchannel heat exchanger can also be insulated, indirectly improving the heat exchange efficiency. The application of diffusion welding layered entity manufacturing technology makes the microchannel heat exchanger have a high-density inner cavity channel array and no contact thermal resistance, so that the heat transfer coefficient is high.

Description

Technical Field

[0001] The invention relates to the technical field of microchannel heat exchange, and in particular to a detachable microchannel heat exchanger. Background Art

[0002] With the development of aerospace, petrochemical and other industries, the demand for heat exchangers is becoming more and more extensive, involving oil and gas processing heat exchange units in the petrochemical industry, especially offshore floating production storage and offloading units, floating liquefied natural gas production storage and offloading units, floating liquefied natural gas storage and offloading units, floating liquefied natural gas production storage and offloading units, floating liquefied natural gas regasification units and other space-constrained occasions.

[0003] The existing traditional microchannel heat exchanger adopts a single-flow flow form, and the heat exchange efficiency is not very high. In addition, the existing microchannel heat exchanger is usually fixed. Once some components of the microchannel heat exchanger are damaged, they can only be replaced as a whole, resulting in increased costs. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of low heat exchange efficiency and the need for overall replacement when damaged in the prior art, and to propose a detachable microchannel heat exchanger, which uses multiple clamping joints to achieve rapid installation and disassembly of the microchannel heat exchanger, so that damaged parts can be replaced accordingly, reducing production costs, and the entire microchannel heat exchanger can also be insulated, indirectly improving the heat exchange efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A detachable microchannel heat exchanger includes a microchannel heat exchanger body, the microchannel heat exchanger body consists of a first body and a second body, the first body is provided with a first insulation component, the second body is provided with a second insulation component, one end of the first insulation component is connected to one end of the second insulation component, the first body and the second body are provided with the same locking mechanism, and multiple clamping is used to realize rapid installation and disassembly of the microchannel heat exchanger, so that damaged parts can be replaced accordingly, reducing production costs, and the entire microchannel heat exchanger can also be insulated, indirectly improving heat exchange efficiency.

[0007] Preferably, the first insulation component includes a plurality of first foils arranged in the first main body, and the plurality of first foils are all etched into an S-shaped first flow channel. A first insulation cavity is arranged in the inner wall of the first main body, and one end of the first flow channel is connected with a first medium delivery pipe. The first flow channel and the first insulation cavity are connected through a first conduit. The first insulation cavity is connected with a first connecting pipe. The first insulation cavity is connected with one end of the second insulation component. The setting of the first insulation component performs insulation treatment on the first main body, reduces the heat loss of the refrigerant, and thus indirectly improves the heat exchange efficiency.

[0008] Preferably, the second insulation component includes a plurality of second foils arranged in the second main body, and the plurality of second foils are etched into an S-shaped second flow channel. A second insulation cavity is arranged in the inner wall of the second main body. One end of the second flow channel is connected with a second medium delivery pipe. The second flow channel is connected with the second insulation cavity through a second conduit. The second insulation cavity is connected with a second connecting pipe. The first insulation cavity is connected with the second insulation cavity. The second insulation component is arranged to insulate the second main body, thereby reducing the heat loss of the refrigerant, thereby indirectly improving the heat exchange efficiency.

[0009] Preferably, the medium flow direction of the second flow channel is opposite to the medium flow direction of the first flow channel.

[0010] Preferably, the locking mechanism includes a trapezoidal card slot arranged on the left inner wall of the first body, a first installation slot is arranged in the left inner wall of the second body, a first telescopic rod is fixedly installed at the bottom of the first installation slot, a trapezoidal card block is fixedly installed at the upper end of the first telescopic rod, a second installation slot is arranged in the right inner wall of the first body, a second telescopic rod is fixedly installed in the second installation slot, a locking rod is fixedly installed at the lower end of the second telescopic rod, a locking slot is arranged in the right inner wall of the second body, and the setting of the locking mechanism utilizes multiple clamping to realize the rapid installation and disassembly of the microchannel heat exchanger.

[0011] Preferably, the trapezoidal card block is inserted into the trapezoidal card slot, and the locking rod is inserted into the locking slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention realizes the rapid installation and disassembly of the entire microchannel heat exchanger by setting a locking mechanism and utilizing multiple clamping connections, so that damaged parts can be replaced accordingly, thereby reducing production costs.

[0014] The present invention achieves thermal insulation treatment of the entire microchannel heat exchanger by arranging the first thermal insulation component and the second thermal insulation component, reduces the heat loss of the charged refrigerant, and thus indirectly improves the heat exchange efficiency.

[0015] The present invention adopts diffusion welding layered entity manufacturing technology to make a high-density inner cavity flow channel array in the microchannel heat exchanger without contact thermal resistance, thereby greatly improving the heat transfer coefficient. The discrete and etched foils are stacked in sequence to increase the surface area of ​​contact heat dissipation and improve the heat exchange effect. The flow directions of the two flow channels are opposite, and the multi-channel parallel countercurrent heat exchange makes the temperature difference obvious, further improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a detachable microchannel heat exchanger proposed by the present invention;

[0017] Figure 2 A schematic diagram of the rear end structure of a detachable microchannel heat exchanger proposed by the present invention;

[0018] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0019] Figure 4 for Figure 1 A magnified schematic diagram of point B in the middle.

[0020] In the figure: 1 microchannel heat exchanger body, 2 first body, 3 second body, 4 first foil, 5 first channel, 6 first insulation cavity, 7 first medium delivery pipe, 8 first conduit, 9 first connecting pipe, 10 second foil, 11 second channel, 12 second insulation cavity, 13 second medium delivery pipe, 14 second conduit, 15 second connecting pipe, 16 trapezoidal card slot, 17 first mounting slot, 18 first telescopic rod, 19 trapezoidal card block, 20 second mounting slot, 21 locking rod, 22 locking slot, 23 second telescopic rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Reference Figure 1-4A detachable microchannel heat exchanger includes a microchannel heat exchanger body 1, which is composed of a first body 2 and a second body 3. The first body 2 is provided with a first insulation component, and the second body 3 is provided with a second insulation component. One end of the first insulation component is connected to one end of the second insulation component, and the first body 2 and the second body 3 are provided with the same locking mechanism.

[0024] Among them, the first insulation component includes a plurality of first foils 4 arranged in the first main body 2, and the plurality of first foils 4 are all etched into an S-shaped first flow channel 5. The flow direction of the first flow channel 5 is an S-shaped flow direction from left to right. A first insulation cavity 6 is arranged in the inner wall of the first main body 2. One end of the first flow channel 5 is connected to a first medium delivery pipe 7. The first flow channel 5 is connected to the first insulation cavity 6 through a first conduit 8. The first insulation cavity 6 is connected to a first connecting pipe 9. The first insulation cavity 6 is connected to one end of the second insulation component.

[0025] The second heat preservation component includes a plurality of second foils 10 arranged in the second body 3, and the plurality of second foils 10 are all etched into an S-shaped second flow channel 11. The flow direction of the second flow channel 11 is an S-shaped flow direction from right to left. A second heat preservation cavity 12 is arranged in the inner wall of the second body 3. One end of the second flow channel 11 is connected with a second medium delivery pipe 13. The second flow channel 11 is connected with the second heat preservation cavity 12 through a second conduit 14. A second connecting pipe 15 is connected to the second heat preservation cavity 12. The first heat preservation cavity 6 is connected with the second heat preservation cavity 12. The medium of the second flow channel 11 The flow direction is opposite to the medium flow direction of the first flow channel 5. It should be noted that liquid control valves are installed in the liquid outlet ends of the first connecting pipe 9 and the second connecting pipe 15 to discharge the charged refrigerant, and the first foil 4 and the second foil 10 are both made of diffusion welding layered entity manufacturing technology, and the discrete and etched foils are stacked in sequence, so that the surface area of ​​contact heat dissipation is increased and the heat exchange effect is improved. The medium flow direction of the second flow channel 11 is opposite to the medium flow direction of the first flow channel 5, so that heat is exchanged in a countercurrent manner, and the temperature difference is large while further improving the heat exchange efficiency.

[0026] More specifically, the locking mechanism includes a trapezoidal card slot 16 provided on the left inner wall of the first body 2, a first mounting slot 17 provided in the left inner wall of the second body 3, a first telescopic rod 18 fixedly installed at the bottom of the first mounting slot 17, the bottom of the mounting slot 17 and the trapezoidal card block 19 are fixedly connected by two sets of constant force springs, and the trapezoidal card slot 16 and the trapezoidal card block 19 are completely matched and fit seamlessly, a trapezoidal card block 19 is fixedly installed at the upper end of the first telescopic rod 18, a second mounting slot 20 is provided in the right inner wall of the first body 2, a second telescopic rod 23 is fixedly installed in the second mounting slot 20, a locking rod 21 is fixedly installed at the lower end of the second telescopic rod 23, a locking slot 22 is provided in the right inner wall of the second body 3, the trapezoidal card block 19 is inserted in the trapezoidal card slot 16, the locking rod 21 is inserted in the locking slot 22, the length and width of the locking rod 21 are the same as the length and width of the locking slot 22, so that the first body 2 and the second body 3 are completely fitted and set without a gap.

[0027] In the present invention, the trapezoidal block 19 in the first installation groove 17 on the left side of the second body 3 is pressed, so that the two constant force springs and the first telescopic rod 18 are squeezed, and the locking rod 21 in the second installation groove 20 on the right side of the first body 2 is pressed at the same time, so that the locking rod 21 squeezes the second telescopic rod 23, and the trapezoidal block 19 is released at this time. Under the action of the elastic force of the constant force spring, the trapezoidal block 19 is inserted into the trapezoidal block 16 matched therewith, and the locking rod 21 is released. Under the action of the elastic force of the second telescopic rod 23, the locking rod 21 is inserted into the locking groove 22, and the length and width of the tightening rod 21 are the same as the length and width of the locking groove 22, so that there is no gap when the locking rod 21 is inserted into the locking groove 22, then the double clamping makes the first body 2 and the second body 3 completely fit together and the first insulation chamber 6 and the second insulation chamber 12 are seamlessly connected, and at this time, the refrigerant is filled into the first flow channel 5 through the first medium delivery pipe 7, After flowing from left to right, it enters the first insulation chamber 6, and the second medium delivery pipe 13 fills the second flow channel 11 with refrigerant. After flowing from right to left, it enters the second insulation chamber 12, where the refrigerant after heat exchange flows into the first insulation chamber 6 and the second insulation chamber 12, which has the effect of insulation and reduces the heat loss of the refrigerant in the first flow channel 5 and the second flow channel 11. The first foil 4 and the second foil 10 both adopt the diffusion welding layered entity manufacturing technology, and the discrete and etched first foil 4 and the second foil 10 are stacked in sequence, so that the surface area of ​​contact heat dissipation is increased, thereby improving the heat exchange effect. The medium flow direction of the second flow channel 11 is opposite to the medium flow direction of the first flow channel 5. In this way, heat is exchanged in a countercurrent manner, and the temperature difference is large while the heat exchange efficiency is improved. The microchannel heat exchanger body 1 can be quickly installed and disassembled, so that damaged parts can be replaced accordingly, reducing production costs.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A detachable microchannel heat exchanger, comprising a microchannel heat exchanger body (1), wherein the microchannel heat exchanger body (1) is composed of a first body (2) and a second body (3), and is characterized in that: The first body (2) is provided with a first heat-insulating component, the second body (3) is provided with a second heat-insulating component, one end of the first heat-insulating component is connected to one end of the second heat-insulating component, the first body (2) and the second body (3) are provided with a same locking mechanism, the first heat-insulating component comprises a plurality of first foils (4) arranged in the first body (2), the plurality of first foils (4) are all etched into S-shaped first flow channels (5), a first heat-insulating cavity (6) is provided in the inner wall of the first body (2), the first flow channels (5) are One end is connected to a first medium delivery pipe (7), the first flow channel (5) is connected to a first heat preservation chamber (6) via a first conduit (8), the first heat preservation chamber (6) is connected to a first connecting pipe (9), the first heat preservation chamber (6) is connected to one end of a second heat preservation component, the second heat preservation component comprises a plurality of second foils (10) arranged in a second body (3), the plurality of second foils (10) are all etched into S-shaped second flow channels (11), the second body (3) is provided with a second heat preservation chamber (12) in its inner wall, the One end of the second flow channel (11) is connected to a second medium delivery pipe (13); the second flow channel (11) is connected to the second heat preservation chamber (12) via a second conduit (14); the second heat preservation chamber (12) is connected to a second connecting pipe (15); the first heat preservation chamber (6) is connected to the second heat preservation chamber (12); the medium flow direction of the second flow channel (11) is opposite to the medium flow direction of the first flow channel (5); the locking mechanism comprises a trapezoidal slot (16) provided on the left inner wall of the first body (2); the second body (3 ) is provided with a first mounting groove (17) in the left inner wall thereof, a first telescopic rod (18) is fixedly mounted at the bottom of the first mounting groove (17), a trapezoidal clamping block (19) is fixedly mounted at the upper end of the first telescopic rod (18), a second mounting groove (20) is provided in the right inner wall of the first main body (2), a second telescopic rod (23) is fixedly mounted in the second mounting groove (20), a locking rod (21) is fixedly mounted at the lower end of the second telescopic rod (23), and a locking groove (22) is provided in the right inner wall of the second main body (3).

2. The detachable microchannel heat exchanger according to claim 1, characterized in that: The trapezoidal clamping block (19) is inserted into the trapezoidal clamping slot (16), and the locking rod (21) is inserted into the locking slot (22).

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