CN109443072B - Floating raft vibration isolation device based on shell-and-tube heat exchanger structure - Google Patents
Floating raft vibration isolation device based on shell-and-tube heat exchanger structure Download PDFInfo
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- CN109443072B CN109443072B CN201811367553.5A CN201811367553A CN109443072B CN 109443072 B CN109443072 B CN 109443072B CN 201811367553 A CN201811367553 A CN 201811367553A CN 109443072 B CN109443072 B CN 109443072B
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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
- F28F9/007—Auxiliary supports for elements
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Abstract
The invention discloses a floating raft vibration isolation device based on a shell-and-tube heat exchanger structure, which comprises a plate structure, a shell structure, a heat exchange tube and a plurality of vibration isolators, wherein the shell structure is provided with a plurality of heat exchange tubes; the shell structure is arranged inside the plate structure, and the plate structure and the shell structure are welded to form a raft frame main structure of the floating raft; the heat exchange tubes are laid in the shell structure, and two ends of the heat exchange tubes are fixed on the plate structure; the two ends of the heat exchange tube are respectively provided with a tube pass inlet and a tube pass outlet; a shell pass inlet and an outlet are arranged at two ends of the shell structure; the vibration isolators are arranged at the bottom of the plate structure at intervals. The invention has the beneficial effects that: the design is fused with the raft frame structure of the floating raft to the structure of the shell-and-tube heat exchanger, the weight of the heat exchanger and the fluid in the heat exchanger is utilized, the weight of the middle mass body of the vibration isolation system is effectively increased on the premise of not increasing the total weight of the submarine, the vibration isolation effect of the floating raft vibration isolation system is improved, and meanwhile, the heat exchange efficiency of the heat exchanger is realized and enhanced on the premise of not occupying the internal space of the submarine by utilizing the large scale of the raft frame of the floating raft.
Description
Technical Field
The invention relates to the field of submarine vibration noise control, in particular to a floating raft vibration isolation device based on a shell-and-tube heat exchanger structure.
Background
The continuous development requirement of submarine sound-hiding performance puts higher and higher requirements on vibration noise of an auxiliary machine system and vibration isolation effect of a floating raft.
The flow of the auxiliary machine system is reduced, so that the vibration noise of the auxiliary machine system can be effectively reduced, and for a seawater cooling system, the efficiency of the seawater heat exchanger is improved, so that the flow of the seawater cooling system is further reduced. The direct means for improving the efficiency of the heat exchanger is to increase the heat exchange area, but the heat exchange area of the heat exchanger is difficult to further increase due to the restriction of comprehensive conditions such as weight, volume and the like.
Increasing the weight of the intermediate mass body of the floating raft is an effective measure for improving the vibration isolation effect of the floating raft, but under the background of the development requirements of light weight and miniaturization of the conventional submarine, the vibration isolation effect is difficult to improve by increasing the weight of the intermediate mass body of the floating raft.
Adopt raft frame structure and heat exchanger to fuse the thinking of design, utilize the weight of heat exchanger and the inside fluid of heat exchanger, can guarantee to promote the vibration isolation effect under the prerequisite that does not increase submarine total weight, the while is the big size of usable raft frame again, realizes and increases the heat exchange efficiency of heat exchanger under the prerequisite that does not occupy submarine inner space.
Disclosure of Invention
The invention aims to provide a buoyant raft vibration isolation device based on a shell-and-tube heat exchanger structure, aiming at overcoming the defects in the prior art, and improving both the heat exchange efficiency of the heat exchanger and the vibration isolation effect of the buoyant raft.
The technical scheme adopted by the invention is as follows: a buoyant raft vibration isolation device based on a shell-and-tube heat exchanger structure comprises a plate structure, a shell structure, a heat exchange tube and a plurality of vibration isolators; the shell structure is arranged inside the plate structure, and the plate structure and the shell structure are welded to form a raft frame main structure of the floating raft; the heat exchange tubes are laid in the shell structure, and two ends of the heat exchange tubes are fixed on the plate structure; the two ends of the heat exchange tube are respectively provided with a tube pass inlet and a tube pass outlet; a shell pass inlet and an outlet are arranged at two ends of the shell structure; the vibration isolators are arranged at the bottom of the plate structure at intervals.
According to the scheme, the floating raft vibration isolation device comprises a plurality of groups of shell structures, wherein the plurality of groups of shell structures are arranged inside a plate structure in parallel at intervals, and the plurality of groups of shell structures are sequentially connected in series end to end; the inner space of the heat exchange tube is a tube side fluid channel, and the inner space of the shell structure is a shell side fluid channel; two adjacent tube side fluid channels are communicated, and two adjacent shell side fluid channels are communicated.
According to the scheme, the overflowing holes are formed in the connecting surfaces of the two adjacent shell structures.
According to the scheme, the water outlet is formed in the bottom of each shell structure.
According to the scheme, the head end and the tail end of each shell structure are provided with the connecting pipelines A for communicating the two adjacent shell structures.
According to the scheme, the two ends of the shell structure 3 are respectively provided with the end sockets communicated with the heat exchange tube, and the connecting pipeline B is arranged between every two adjacent end sockets.
According to the scheme, the end sockets at the two ends of the heat exchange tube are provided with the tube side inlet flange and the tube side outlet flange, the two ends of the shell structure are provided with the shell side inlet flange and the shell side outlet flange, cold source fluid flows in from the shell side inlet flange and flows out from the shell side outlet flange, and heat source fluid flows in from the tube side inlet flange and flows out from the tube side outlet flange.
The invention has the beneficial effects that:
1. for the buoyant raft vibration isolation system, the weight of the middle mass body is increased, so that the buoyant raft vibration isolation effect is improved; the development requirements of light weight and miniaturization of the conventional submarine impose strict requirements on the weight of the floating raft vibration isolation system, and the weight of the intermediate mass body is difficult to further increase; therefore, the floating raft structure and the tubular heat exchanger are fused, the shell of the heat exchanger is designed as the floating raft frame structure of the floating raft, and the weight of the heat exchanger and the fluid in the heat exchanger is utilized to ensure that the weight of the intermediate mass body of the vibration isolation system is effectively increased on the premise of not increasing the total weight of the submarine, so that the 'mass effect' of the floating raft vibration isolation system is improved, and the aim of improving the vibration reduction and isolation effect of the floating raft is finally fulfilled;
2. the floating raft and the shell-and-tube heat exchanger are designed in a fusion mode, a heat exchange function is integrated in the floating raft, the length of the heat exchange tube and the length of the shell are prolonged by utilizing the size advantage of the internal space of the floating raft, the heat exchange area is increased, and the heat exchange efficiency is improved (the heat exchange efficiency can be improved by more than 2 times);
3. the invention has the advantages of reasonable design, good feasibility and high reliability.
Drawings
FIG. 1 is a front view of one embodiment of the present invention.
Fig. 2 is a left side view of the present embodiment.
FIG. 3 is a top view of the structure of the removed panel in this embodiment
Fig. 4 is a sectional view a-a in fig. 3.
Fig. 5 is a sectional view taken along line B-B in fig. 3.
In the figure: 1. a plate structure; 2. a heat exchange pipe; 3. a housing structure; 4. a spherical head; 5. connecting a pipeline A; 6. a connecting pipeline B; 7. a tube side inlet flange; 8. a tube side outlet flange; 9. a shell side inlet flange; 10. a shell-side outlet flange; 11. a water discharge outlet; 12. a vibration isolator; 13. an overflowing hole; 14. a panel.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
The buoyant raft vibration isolation device based on the shell-and-tube heat exchanger structure shown in fig. 1-3 comprises a plate structure 1, a shell structure 3, a heat exchange tube 2 and a plurality of vibration isolators 12; the shell structure 3 is arranged inside the plate structure 1, and the plate structure 1 and the shell structure 3 are welded to form a raft frame main structure of the floating raft; the heat exchange tubes 2 are laid in the shell structure 3, and two ends of the heat exchange tubes are fixed on the plate structure 1; two ends of the heat exchange tube 2 are respectively provided with a tube pass inlet and a tube pass outlet; a shell pass inlet and an outlet are arranged at two ends of the shell structure 3; the vibration isolators 12 are arranged at intervals at the bottom of the panel structure 1.
Preferably, the buoyant raft vibration isolation device comprises a plurality of groups of shell structures 3, the plurality of groups of shell structures 3 are arranged in the plate structure 1 in parallel at intervals, and the plurality of groups of shell structures 3 are sequentially connected in series end to end; the inner space of the heat exchange tube 2 is a tube side fluid channel, and the inner space of the shell structure 3 is a shell side fluid channel; two adjacent tube side fluid channels are communicated, and two adjacent shell side fluid channels are communicated.
Preferably, the connecting surface of two adjacent shell structures 3 is provided with an overflowing hole 13 to realize shell-side fluid overflowing and turbulent flow; the bottom of each shell structure 3 is provided with a water outlet 11; the head end and the tail end of each shell structure 3 are provided with a connecting pipeline A6, so that the shell structures 3 are sequentially connected in series.
Preferably, the two ends of the shell structure 3 are respectively provided with a seal head 4 (which can be a spherical seal head) communicated with the heat exchange tubes 2, and the fluid in the single group of heat exchange tubes 2 is collected in the seal head 4; the end sockets 4 of two adjacent shell structures 3 are connected through a connecting pipeline B5, so that the series connection of a plurality of groups of heat exchange tubes 2 is realized.
Preferably, the end sockets 4 at two ends of the heat exchange tube 2 are provided with a tube side inlet flange 7 and a tube side outlet flange 8, the two ends of the shell structure 3 are provided with a shell side inlet flange 9 and a shell side outlet flange 10, cold source fluid flows in from the shell side inlet flange 9 and flows out from the shell side outlet flange 10, and heat source fluid flows in from the tube side inlet flange 7 and flows out from the tube side outlet flange 8.
In this embodiment, the plate structure 1 should have sufficient strength and tightness to isolate the fluid in the head 4 from the fluid in the shell side. A plurality of plate structure 1 splice to constitute the main part of buoyant raft frame with shell structure 3, make the raft frame satisfy intensity and rigidity requirement. The vibration isolator 12 is arranged at the bottom of the raft frame, the mounting position is positioned on the plate structure 1, and the vibration equipment can be elastically mounted or rigidly mounted on a panel 14 of the raft frame shown in fig. 5, so that the vibration of the vibration equipment is reduced. The weight of raft frame can be increased by the fluid in the raft frame, the mass effect of the floating raft vibration isolation system is improved, and the purpose of improving the floating raft vibration isolation efficiency is achieved.
In this embodiment, shell and tube heat exchanger structure includes the parallel spaced heat exchange tube 2 of multiunit and the parallel spaced shell structure 3 of multiunit, and single group heat exchange tube 2 comprises many parallel heat exchange tubes 2, and the end to end welding of a plurality of shell structure 3 is on plate structure 1. As shown in FIG. 5, holes are formed in the plate structure 1 between the two sections of shell structural members 3, so that the heat exchange tubes 2 are laid along the shell, and the plate structure 1 is provided with through holes 13 to realize circulation and turbulence of tube side fluid. Holes are arranged on the plate structure 1 at the end of a single group of heat exchange tubes 2 as shown in fig. 4 to allow the ends of the heat exchange tubes 2 to penetrate and be reliably welded. A seal head 4 (which can be a spherical seal head) is arranged on the plate structure 1 shown in fig. 4, the tail end of the heat exchange tube 2 is collected in a cavity formed by the seal head 4 and the plate structure 1, and the cavity has enough strength and tightness to isolate the shell-side fluid and the tube-side fluid; and a connecting pipeline B5 is arranged on the adjacent end sockets 4 to realize the series connection of a plurality of groups of heat exchange tubes 2, so that the tube pass of the shell-and-tube heat exchanger is formed. The end of the single group of shell structures 3 is provided with a connecting pipeline A6 to realize the series connection of the multiple groups of shell structures 3 to form the shell side of the shell-and-tube heat exchanger. A tube pass inlet flange 7 is arranged on the end socket 4 at the beginning end of the tube pass, and a tube pass outlet flange 8 is arranged on the end socket 4 at the tail end of the tube pass; a shell side inlet flange 9 is arranged on the shell side starting end shell structure 3, and a shell side outlet flange 10 is arranged on the shell side tail end shell structure 3. A discharge outlet 11 is provided at the bottom of each segment 3 shown in fig. 5.
In this embodiment, a tube-side fluid is connected in series to a tube-side inlet flange 7 and a tube-side outlet flange 8 in fig. 1 to 3, a shell-side fluid is connected in series to a shell-side inlet flange 9 and a shell-side outlet flange 10 in fig. 1 to 3, the tube-side fluid and the shell-side fluid flow in opposite directions, and the principle of achieving and improving the heat exchange efficiency is as follows: (1) tube pass fluid enters the tube pass initial end sealing head 4 from the tube pass inlet flange 7, dispersedly enters the heat exchange tube 2, flows through the tube pass, finally converges to the sealing head 4 at the tube pass tail end position, and then flows out from the tube pass outlet flange 8, and the flow velocity of the fluid in the tube pass is not more than 2 m/s. And the shell pass fluid enters the shell pass from a shell pass inlet flange 9 and then flows out from a shell pass outlet flange 10, and the flow velocity of the shell pass fluid is not more than 2 m/s. The heat exchange is realized in the process that the tube side fluid and the shell side fluid flow oppositely. (2) The connection pipeline B5 and the connection pipeline A6 can realize the series connection of a plurality of groups of heat exchange tubes 2 and the shell structure 3, and the heat exchange area is effectively increased. (3) The shell pass flow holes 13 shown in the view B-B in FIG. 5 can realize turbulent flow of the shell pass fluid, so that the temperature of the shell pass fluid is homogenized, and heat exchange between the shell pass fluid and the heat exchange tubes 2 is facilitated. (4) When the shell pass channel of the heat exchanger needs to be cleaned, the water outlet 11 is opened, and clean water is introduced into the shell structure 3 to wash impurities.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (6)
1. A buoyant raft vibration isolation device based on a shell-and-tube heat exchanger structure is characterized by comprising a plate structure, a shell structure, a heat exchange tube and a plurality of vibration isolators; the shell structure is arranged inside the plate structure, and the plate structure and the shell structure are welded to form a raft frame main structure of the floating raft; the heat exchange tubes are laid in the shell structure, and two ends of the heat exchange tubes are fixed on the plate structure; the two ends of the heat exchange tube are respectively provided with a tube pass inlet and a tube pass outlet; a shell pass inlet and an outlet are arranged at two ends of the shell structure; the vibration isolators are arranged at the bottom of the plate structure at intervals; the floating raft vibration isolation device comprises a plurality of groups of shell structures, wherein the plurality of groups of shell structures are arranged inside the plate structure in parallel at intervals, and the plurality of groups of shell structures are sequentially connected in series end to end; the inner space of the heat exchange tube is a tube side fluid channel, and the inner space of the shell structure is a shell side fluid channel; two adjacent tube side fluid channels are communicated, and two adjacent shell side fluid channels are communicated.
2. The tube and shell heat exchanger structure based buoyant raft vibration isolation mounting of claim 1, wherein the joint face of two adjacent shell structures is provided with an overflowing hole.
3. The tube and shell heat exchanger structure-based buoyant raft vibration isolation mounting of claim 1, wherein a water outlet is provided at the bottom of each shell structure.
4. The tube and shell heat exchanger structure-based buoyant raft vibration isolation mounting of claim 1, wherein the head end and the tail end of each shell structure are provided with a connecting pipe A for communicating two adjacent shell structures.
5. The tube and shell heat exchanger structure-based buoyant raft vibration isolation device of claim 1, wherein two ends of the shell structure are respectively provided with an end socket communicated with the heat exchange tube, and a connecting pipeline B communicated with the two end sockets is arranged between the two adjacent end sockets.
6. The tube and shell heat exchanger structure-based buoyant raft vibration isolation device of claim 1, wherein the end sockets at the two ends of the heat exchange tube are provided with a tube side inlet flange and a tube side outlet flange, the two ends of the shell structure are provided with a shell side inlet flange and a shell side outlet flange, the cold source fluid flows in from the shell side inlet flange and flows out from the shell side outlet flange, and the heat source fluid flows in from the tube side inlet flange and flows out from the tube side outlet flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367553.5A CN109443072B (en) | 2018-11-16 | 2018-11-16 | Floating raft vibration isolation device based on shell-and-tube heat exchanger structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367553.5A CN109443072B (en) | 2018-11-16 | 2018-11-16 | Floating raft vibration isolation device based on shell-and-tube heat exchanger structure |
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| Publication Number | Publication Date |
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| CN109443072A CN109443072A (en) | 2019-03-08 |
| CN109443072B true CN109443072B (en) | 2020-08-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814165U (en) * | 2012-09-03 | 2013-03-20 | 神华集团有限责任公司 | Gasified black water heat exchanger and heat exchanger unit |
| CN102979995A (en) * | 2012-11-30 | 2013-03-20 | 中国船舶重工集团公司第七一一研究所 | Design method for reducing impedance of equipment under-chassis in vibration isolation system |
| CN107169189A (en) * | 2017-05-10 | 2017-09-15 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of determination method of the effective mechanical impedance of Buoyant Raft Shock-resistant System raft frame structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874572B2 (en) * | 2002-03-22 | 2005-04-05 | Exxonmobil Research And Engineering Company | Heat exchanger flow-through tube supports |
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- 2018-11-16 CN CN201811367553.5A patent/CN109443072B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814165U (en) * | 2012-09-03 | 2013-03-20 | 神华集团有限责任公司 | Gasified black water heat exchanger and heat exchanger unit |
| CN102979995A (en) * | 2012-11-30 | 2013-03-20 | 中国船舶重工集团公司第七一一研究所 | Design method for reducing impedance of equipment under-chassis in vibration isolation system |
| CN107169189A (en) * | 2017-05-10 | 2017-09-15 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of determination method of the effective mechanical impedance of Buoyant Raft Shock-resistant System raft frame structure |
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