CN210400078U - High-pressure resistant capillary heat exchanger for cooling high-temperature and high-pressure air - Google Patents
High-pressure resistant capillary heat exchanger for cooling high-temperature and high-pressure air Download PDFInfo
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- CN210400078U CN210400078U CN201921217016.2U CN201921217016U CN210400078U CN 210400078 U CN210400078 U CN 210400078U CN 201921217016 U CN201921217016 U CN 201921217016U CN 210400078 U CN210400078 U CN 210400078U
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Abstract
The utility model discloses a high pressure resistant capillary heat exchanger of cooling high temperature highly-compressed air, including supporting the catch tray, end album of liquid ring, the top of supporting the catch tray is equipped with shell side fluid entry, the top of end album of liquid ring is provided with import collecting liquid chamber and export collecting liquid chamber, the top in import collecting liquid chamber is equipped with tube side fluid entry, the top in export collecting liquid chamber is equipped with tube side fluid outlet, this heat exchanger still includes two sets of heat transfer capillary group, every group heat transfer capillary group includes a plurality of precooling pieces, every precooling piece is including the capillary that divides liquid pipe, collecting pipe and multirow parallel arrangement. Through the improvement, the heat exchanger is compact in structure, the size of equipment is greatly reduced, the occupied area of the equipment is reduced, the heat exchange efficiency of the equipment is greatly improved through the thin capillary tube, and the same heat can be exchanged by needing a small heat exchange area.
Description
Technical Field
The utility model relates to a heat exchanger technical field especially relates to a high pressure resistant capillary heat exchanger of cooling high temperature high pressure air.
Background
Tubular heat exchangers are typical of the dividing wall type heat exchangers, have a long history of industrial application, and have been dominant in all heat exchangers to date. Traditional heat exchanger includes many parallel arrangement's heat exchange tube and collecting tube, and the pipe diameter of heat exchange tube is general all bigger, and this tendency has certainly caused the high cost of heat exchanger, the heat exchanger area increase that is simultaneously also, and heat exchange efficiency is also not good simultaneously. If the diameter of the heat exchange tube is reduced, the heat exchange tube is deformed if the diameter of the heat exchange tube is small because the fins are required to be installed in a mode of expanding the tube and penetrating the tube during production, so that the production obstacle of the heat exchange tube is caused, and the diameter of the heat exchange tube of the heat exchanger is always kept in a larger numerical range.
At present, capillary tube technology has been gradually applied in the technical field of chemical industry, but the capillary tube is still arranged in the traditional tube heat exchanger in a tube arrangement mode, the overall pressure drop of the heat exchanger is too large due to the small diameter of the capillary tube, so that the standard is exceeded, the normal use of the heat exchanger is influenced, and the heat exchanger with the structure has the defects of not compact structure and low heat exchange efficiency.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a high pressure resistant capillary heat exchanger of cooling high temperature high pressure air, includes support set, end liquid collecting ring, its characterized in that: the top end of the supporting collecting disc is provided with a shell pass fluid inlet, the bottom end of the supporting collecting disc is respectively provided with a plurality of first connecting grooves and second connecting grooves, the first connecting grooves and the second connecting grooves are respectively positioned on two sides of the shell pass fluid inlet and are arranged in two rows in parallel, the top end of the end liquid collecting ring is provided with two cavities which are respectively marked as an inlet liquid collecting cavity and an outlet liquid collecting cavity, the top of the inlet liquid collecting cavity is provided with a tube pass fluid inlet, the top of the outlet liquid collecting cavity is provided with a tube pass fluid outlet, the bottom end of the end liquid collecting ring is respectively provided with a plurality of first connecting holes and second connecting holes, the first connecting holes are communicated with the inlet liquid collecting cavity, the second connecting holes are communicated with the outlet liquid collecting cavity, and the first connecting holes and the second connecting holes are arranged in; this heat exchanger still includes two sets of heat transfer capillary group, and every heat transfer capillary group of group includes a plurality of precooling pieces, and every precooling piece is including dividing liquid pipe, collecting pipe and multirow parallel arrangement's capillary, divides the one end and the first connecting hole through connection of liquid pipe, divides the other end of liquid pipe for the blind end and with first connecting groove connection, the one end and the second connecting hole through connection of collecting pipe, the other end of collecting pipe for the blind end and with second connecting groove connection.
Preferably, all the pre-cooling plates are in a semi-circular arc shape, and the circle centers of all the pre-cooling plates are in the same position.
Preferably, the first connecting grooves and the second connecting grooves are respectively arranged in a one-to-one symmetrical manner with respect to the circle center of the supporting collecting tray, and the first connecting holes and the second connecting holes are respectively arranged in a one-to-one symmetrical manner with respect to the circle center of the end collecting ring.
Preferably, the first connecting holes are in one-to-one correspondence with the first connecting grooves, and the second connecting holes are in one-to-one correspondence with the second connecting grooves.
Preferably, a plurality of capillary connecting holes are formed in the side walls of the liquid separating pipe and the liquid collecting pipe, one end of each capillary is connected with the capillary connecting hole in the side wall of the liquid separating pipe, and the other end of each capillary is connected with the capillary connecting hole in the side wall of the liquid collecting pipe.
Preferably, the capillary tube is connected with the capillary tube connecting hole on the side wall of the liquid distribution pipe in a welding mode, and the capillary tube is connected with the capillary tube connecting hole on the side wall of the liquid collecting pipe in a welding mode.
Preferably, the diameter of the liquid distribution pipe and the liquid collecting pipe is 8mm, the thickness of the pipe wall is 1mm, the diameter of the capillary is 1.2mm, the thickness of the pipe wall is 0.15mm, and the material of the liquid distribution pipe, the material of the liquid collecting pipe and the material of the capillary are all 304 stainless steel.
Preferably, the number of the first connecting grooves, the second connecting grooves, the first connecting holes and the second connecting holes is 12, and the first connecting holes, the second connecting holes and the first connecting holes are arranged in two rows, and each row is 6.
The utility model discloses the beneficial effect who has does:
the invention provides a high-pressure resistant capillary tube heat exchanger for cooling high-temperature and high-pressure air, which has a compact and simple structure, greatly reduces the volume of equipment, and reduces the occupied area of the equipment. The equipment adopts the capillary tube to replace the heat exchange tube of the traditional tube heat exchanger, reduces the diameter of the pipeline, has good turbulent flow effect of fluid in the capillary tube, is not easy to cause scaling and other phenomena in the tube, also greatly improves the heat exchange efficiency of the equipment, and can exchange the same heat by needing smaller heat exchange area. Meanwhile, the invention solves the problem of overhigh pressure drop caused by over-small diameter of the capillary tube by a semi-arc tube distribution mode of distributing liquid and the pre-cooling plate by the end liquid collecting ring.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the supporting plate of the present invention;
FIG. 3 is a rear view of FIG. 2;
fig. 4 is a front view of the support ring of the present invention;
FIG. 5 is a rear view of FIG. 4;
FIG. 6 is a schematic structural view of the pre-cooling sheet of the present invention;
fig. 7 is a piping diagram of the pre-cooling sheet of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The invention provides a high-pressure resistant capillary tube heat exchanger for cooling high-temperature and high-pressure air, which comprises a supporting collecting disc 1 and an end liquid collecting ring 4, wherein the supporting collecting disc 1 is annular, the hollow round part of the supporting collecting disc is used as a shell-side fluid inlet 3, the bottom end of the supporting collecting disc 1 is respectively provided with a plurality of first connecting grooves 9 and second connecting grooves 10, the first connecting grooves 9 and the second connecting grooves 10 are arranged in two parallel rows, the number of each row is 6, and the first connecting grooves 9 and the second connecting grooves 10 are respectively arranged in a one-to-one symmetrical mode relative to the circle center of the supporting collecting disc 1. The top end of the end liquid collecting ring 4 is provided with two cavities which are respectively marked as an inlet liquid collecting cavity 5 and an outlet liquid collecting cavity 6, the top of the inlet liquid collecting cavity 5 is provided with a tube side fluid inlet 7, the top of the outlet liquid collecting cavity 6 is provided with a tube side fluid outlet 8, the bottom end of the end liquid collecting ring 4 is respectively provided with a plurality of first connecting holes 11 and second connecting holes 12, the first connecting holes 11 are communicated with the inlet liquid collecting cavity 5, the second connecting holes 12 are communicated with the outlet liquid collecting cavity 6, and the first connecting holes 11 and the second connecting holes 12 are arranged in two rows in parallel; the positions of the first connecting holes 11 and the first connecting grooves 9 are in one-to-one correspondence, and the positions of the second connecting holes 12 and the second connecting grooves 10 are in one-to-one correspondence; the first connecting holes 11 and the second connecting holes 12 are respectively arranged in one-to-one symmetry with respect to the circle center of the end liquid collecting ring 4, the first connecting holes 11 and the second connecting holes 12 are arranged in two parallel rows, and the number of each row is 6.
As shown in fig. 6 and 7, the heat exchanger further includes two sets of heat exchange capillary tube groups 2, each set of heat exchange capillary tube group 2 includes a plurality of precooling sheets, each precooling sheet includes a liquid distribution tube 202, a liquid collection tube 203 and 80 capillary tubes 201 arranged in parallel, gaps between the capillary tubes 201 form a shell-side fluid outlet, and cooled air flows out from the shell-side fluid outlet. Wherein the diameter of the liquid separating pipe 202 and the liquid collecting pipe 203 is 8mm, the thickness of the pipe is 1mm, the diameter of the capillary 201 is 1.2mm, the thickness of the capillary is 0.15mm, and the material of the liquid separating pipe 202, the material of the liquid collecting pipe 203 and the material of the capillary 201 are all 304 stainless steel. A plurality of capillary connection holes are formed in the side walls of the liquid separating pipe 202 and the liquid collecting pipe 203, and the holes are machined by a CNC (computer numerical control) drilling and milling machining center by a customized special cutter. One end of the capillary 201 is connected with a capillary connecting hole on the side wall of the liquid distribution pipe 202 in a welding mode, and the other end of the capillary 201 is connected with a capillary connecting hole on the side wall of the liquid collection pipe 203 in a welding mode. The welding mode of the capillary 201, the liquid distributing pipe 202 and the liquid collecting pipe 203 adopts brazing, nickel-based powder solder is selected to be coated on a brazing seam during welding, the amount and the temperature of the brazing solder are controlled, the capillary is prevented from corrosion, the welding strength is ensured, the welding position of the pre-cooling sheet manufactured by the mode has no deformation and leakage, the surface is smooth and clean, and the product percent of pass can reach 100%. Divide the one end of liquid pipe 202 and pass through cutting ferrule through connection with first connecting hole 11, divide the other end of liquid pipe 202 to be the blind end, and divide the blind end and the first connecting groove 9 through connection of liquid pipe 202, the one end and the second connecting hole 12 of collecting main 203 pass through cutting ferrule through connection, and the other end of collecting main 203 is the blind end and the blind end of collecting main 203 passes through the cutting ferrule and is connected with second connecting groove 10.
As shown in fig. 7, all the pre-cooling fins are in a semi-circular arc shape, and the circle centers of all the pre-cooling fins are the same and are the circle centers of the end liquid collecting ring 4 or the supporting disc 1.
The working process of the invention is as follows:
and a shell-side fluid, namely high-temperature and high-pressure air passes through the shell-side fluid inlet 3, is subjected to heat exchange with the tube-side fluid in the pre-cooling sheet through the heat exchange capillary group 2, and flows out through the shell-side fluid outlet after the heat exchange. The tube side fluid, i.e. the low temperature medium, such as liquid helium, enters the inlet header 5 from the tube side fluid inlet 7, further distributes to each first connection hole 11, enters the liquid distribution tube 202 of each pre-cooling fin, the liquid distribution tube 202 distributes the tube side fluid to each capillary 201, exchanges heat with the high temperature and high pressure air, flows into the outlet header 6 through the liquid collection tube 203 and the second connection hole 12, and flows out through the tube side fluid outlet 8. The tube side fluid and the shell side fluid are integrally arranged in an inverse differential flow mode.
Claims (8)
1. The utility model provides a high pressure resistant capillary heat exchanger of cooling high temperature high pressure air, includes support set, end liquid collecting ring, its characterized in that: the top end of the supporting collecting disc is provided with a shell pass fluid inlet, the bottom end of the supporting collecting disc is respectively provided with a plurality of first connecting grooves and second connecting grooves, the first connecting grooves and the second connecting grooves are respectively positioned on two sides of the shell pass fluid inlet and are arranged in two rows in parallel, the top end of the end liquid collecting ring is provided with two cavities which are respectively marked as an inlet liquid collecting cavity and an outlet liquid collecting cavity, the top of the inlet liquid collecting cavity is provided with a tube pass fluid inlet, the top of the outlet liquid collecting cavity is provided with a tube pass fluid outlet, the bottom end of the end liquid collecting ring is respectively provided with a plurality of first connecting holes and second connecting holes, the first connecting holes are communicated with the inlet liquid collecting cavity, the second connecting holes are communicated with the outlet liquid collecting cavity, and the first connecting holes and the second connecting holes are arranged in; this heat exchanger still includes two sets of heat transfer capillary group, and every heat transfer capillary group of group includes a plurality of precooling pieces, and every precooling piece is including dividing liquid pipe, collecting pipe and multirow parallel arrangement's capillary, divides the one end and the first connecting hole through connection of liquid pipe, divides the other end of liquid pipe for the blind end and with first connecting groove connection, the one end and the second connecting hole through connection of collecting pipe, the other end of collecting pipe for the blind end and with second connecting groove connection.
2. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 1, wherein: the precooling plates are all in a semi-circular arc shape, and the circle center positions of all the precooling plates are the same.
3. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 2, wherein: the first connecting grooves and the second connecting grooves are respectively arranged in a one-to-one symmetrical mode with respect to the circle center of the supporting collecting disc, and the first connecting holes and the second connecting holes are respectively arranged in a one-to-one symmetrical mode with respect to the circle center of the end liquid collecting ring.
4. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 3, wherein: the first connecting holes are in one-to-one correspondence with the first connecting grooves, and the second connecting holes are in one-to-one correspondence with the second connecting grooves.
5. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 4, wherein: a plurality of capillary connecting holes are formed in the side wall of the liquid dividing pipe and the side wall of the liquid collecting pipe, one end of each capillary is connected with the capillary connecting hole in the side wall of the liquid dividing pipe, and the other end of each capillary is connected with the capillary connecting hole in the side wall of the liquid collecting pipe.
6. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 5, wherein: the capillary tube is connected with the capillary tube connecting hole in the side wall of the liquid distribution pipe in a welding mode, and the capillary tube is connected with the capillary tube connecting hole in the side wall of the liquid collecting pipe in a welding mode.
7. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 6, wherein: the diameter of the liquid distribution pipe and the liquid collecting pipe is 8mm, the thickness of the pipe wall is 1mm, the diameter of the capillary is 1.2mm, the thickness of the pipe wall is 0.15mm, and the liquid distribution pipe, the liquid collecting pipe and the capillary are all made of 304 stainless steel.
8. A high pressure resistant capillary heat exchanger for cooling high temperature and high pressure air according to claim 7, wherein: the number of the first connecting grooves, the second connecting grooves, the first connecting holes and the second connecting holes is 12, and the first connecting grooves, the second connecting holes, the first connecting holes and the second connecting holes are arranged in two rows, and each row is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217016.2U CN210400078U (en) | 2019-07-31 | 2019-07-31 | High-pressure resistant capillary heat exchanger for cooling high-temperature and high-pressure air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217016.2U CN210400078U (en) | 2019-07-31 | 2019-07-31 | High-pressure resistant capillary heat exchanger for cooling high-temperature and high-pressure air |
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| CN210400078U true CN210400078U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921217016.2U Active CN210400078U (en) | 2019-07-31 | 2019-07-31 | High-pressure resistant capillary heat exchanger for cooling high-temperature and high-pressure air |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551443A (en) * | 2021-08-25 | 2021-10-26 | 沈阳宏程世纪制冷设备有限公司 | Ring heat exchanger for water source heat pump and use method |
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2019
- 2019-07-31 CN CN201921217016.2U patent/CN210400078U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551443A (en) * | 2021-08-25 | 2021-10-26 | 沈阳宏程世纪制冷设备有限公司 | Ring heat exchanger for water source heat pump and use method |
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