CN209069064U - A kind of gas-gas heat exchanger - Google Patents
A kind of gas-gas heat exchanger Download PDFInfo
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- CN209069064U CN209069064U CN201821786749.3U CN201821786749U CN209069064U CN 209069064 U CN209069064 U CN 209069064U CN 201821786749 U CN201821786749 U CN 201821786749U CN 209069064 U CN209069064 U CN 209069064U
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Abstract
A kind of gas-gas heat exchanger, heat-exchanging component including shell and inside, the upper end of shell is equipped with the entrance sleeve and discharge connection of tube side gas, the left and right ends of shell are equipped with the inlet interface and discharge coupling of shell side gas, shell is pressure-bearing horizontal type structure, heat-exchanging component includes the heat-exchanging tube bundle of cuboid, the upper end of heat-exchanging tube bundle is equipped with the import bobbin carriage being correspondingly connected with the entrance sleeve and discharge connection of tube side gas and outlet bobbin carriage, heat-exchanging tube bundle is connected by entrance sleeve and discharge connection with shell, the left and right ends periphery of heat-exchanging tube bundle and the gap of outer casing inner wall are blocked using sealing plate, the bottom of shell is equipped with shell side sewage pipe and tube side sewage pipe.The utility model is structurally reasonable, and heat exchange efficiency is high, and drag losses are smaller, no thermal (temperature difference) stress, and adaptation pressure limit is wide while safe and reliable, and the service life is long, material province, energy conservation and environmental protection.
Description
Technical field
The utility model relates to a kind of heat exchanger more particularly to a kind of smaller gas-gas heat exchanger of pressure loss, tube sides
It is the gas of homologous or approximate equipressure with shell side heat transferring medium.
Background technique
The most mainstream of heat exchanger currently on the market is tubular heat exchanger, including fixed tube sheet type and floating head type, other
Such as board-like, spiral plate type, plate-fin compact heat exchanger are also relatively common.These heat exchangers are suitble between liquid phase or liquid
Phase and the heat exchange between gas phase, gas phase and gas phase, and the purposes not stringent to resistance.General hydrodynamic is from centrifugation
Pump, the resistance for flowing through heat exchanger are relatively common between 0.05~0.2MPa.And gas is since pressure gap is larger, such as common pressure
Contracting air pressure 0.8MPa, ammonia synthesis process gas pressure 32MPa, the air resistance range for flowing through heat exchanger is also very big, common
Between 0.02~0.6MPa.
In fermentation industry, compressed air is the base stock that bacterium metabolism is produced in aerobic fermentation, has that flow is big, pressure is low
The characteristics of.Traditional equipment is using fixed tube-sheet exchanger, and general compressed air walks shell side, and cooling water or steam walk tube side.
Single device air drag is between 0.01~0.02MPa, and entire air treatment system, at least three, heat exchanger, disregards gas
The resistances such as liquid/gas separator, filter, only heat exchanger resistance is just up between 0.03~0.06MPa.With gradually mentioning for power conservation requirement
Height, fixed tube-sheet exchanger have been unable to meet the production requirement of fermentation air processing.
Through looking into, existing patent publication No. is a kind of Chinese patent " heat exchanger " of CN201000285Y comprising has shell
Connecting interface between the tubulation being distributed in shell and each phase, it is characterised in that using the vertical structure of monoshell journey, two-tube-pass；
Two-tube-pass structure is that the inlet and outlet of tube side are all disposed within to the top of shell, is distributed in shell from top to bottom, again from bottom to top
Tubulation group, be provided with sewage draining exit on outer casing underpart tubulation group connector；Single shell side structure is to be all disposed within the inlet and outlet of shell side
The left and right part of shell, in a straight line, a phase to be cooled such as high temperature walks tube side to inlet and outlet, and uplink after first downlink is conducive to discharge
The Xiang Zhongke condensation component；Another phase to be heated such as low temperature walks shell side, wherein no baffle plate, linearly passes through finned tube outer room
Gap, drag losses are minimum, and heat-transfer effect is good.This heat exchanger is suitble to normal pressure gas-gas heat exchange, but pressure vessel is not met in structure
Regulatory requirements, and air drag can still improve.
Summary of the invention
Technical problem to be solved in the utility model is provided a kind of structurally reasonable, suitable for the above-mentioned state of the art
Answer the gas-gas heat exchanger that pressure limit is wide.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of gas-gas heat exchanger, including shell
And internal heat-exchanging component, the upper end of shell are equipped with the entrance sleeve and discharge connection of tube side gas, the left and right ends of shell
Inlet interface and discharge coupling equipped with shell side gas, it is characterised in that: the shell is pressure-bearing horizontal type structure, heat-exchanging component packet
Heat-exchanging tube bundle is included, the upper end of heat-exchanging tube bundle is equipped with the import bobbin carriage being correspondingly connected with the entrance sleeve and discharge connection of tube side gas
With outlet bobbin carriage, heat-exchanging tube bundle is connected by entrance sleeve and discharge connection with shell, the left and right ends periphery of heat-exchanging tube bundle
Block to form tube side and shell side be isolated using sealing plate with the gap of outer casing inner wall, the bottom of shell be equipped with shell side sewage pipe with
Tube side sewage pipe.
As an improvement, the shell is welded by columnar cylinder and left and right end socket, the import of shell side gas is connect
Mouth and discharge coupling are separately positioned on the front center position of left and right end socket, entrance sleeve and the discharge connection difference of tube side gas
The upper center left-right position of cylinder is set.
As an improvement, the import bobbin carriage and outlet bobbin carriage be separated by bobbin carriage top plate and bobbin carriage side plate two solely
Vertical enclosure space, import bobbin carriage and outlet bobbin carriage inwardly communicated with space in heat-exchanging tube bundle, import bobbin carriage and outlet bobbin carriage to
It is outer to be connected respectively with entrance sleeve and discharge connection.
Further, the heat-exchanging tube bundle is by front and back side plate, upper lower perforated plate and several set of heat exchange tubes connected between the two
At rectangular parallelepiped structure, the quantity of heat exchanger tube divides equally two halves, and gas is downward from import in half heat exchanger tube, in the other half heat exchanger tube
Gas is upwardly into outlet, respectively corresponds import bobbin carriage and outlet bobbin carriage.
Further, the sealing plate uses thin-wall construction made of the sheet metal with certain elasticity, and sealing plate passes through weldering
The mode and cylinder connect seals, and shell side and tube side are separated by sealing plate.
Further, the bottom of the shell is equipped with the saddle for being used to support shell, and tube side sewage pipe is one, and setting exists
The bottom middle position of shell, shell side sewage pipe are left and right two, are arranged at left and right sides of the bottom of shell.
Finally, the heat exchanger tube uses the augmentation of heat transfer pipe such as light pipe or finned tube, bellows tube, screwed pipe.
Compared with the prior art, the advantages of the utility model are: heat-exchanging tube bundle is not rigidly connected with shell, but it is logical
Import and export adapter tube and cage connection are crossed, there is sealing plate connection in the gap between heat-exchanging tube bundle shell side disengaging both ends and shell, seals
Plate material uses sheet metal, has certain elasticity, with traditional tube plate of tube-column heat exchanger compared with the direct rigid solder of cylinder,
For the heat exchanger of the utility model when cylinder is heated temperature difference difference with heat exchanger tube, respective retractable eliminates heat exchanger tube
Thermal (temperature difference) stress；Bobbin carriage is arranged in the top of heat-exchanging tube bundle, and lower part is not provided with bobbin carriage, so that tube side fluid was turned round from bottom to top
In the process, space increases, and fluid is buffered, rectifies, and flow velocity reduces, and resistance reduces, while fluid distrbution is more in each heat exchanger tube
Uniformly.The utility model is structurally reasonable, and heat exchange efficiency is high, and drag losses are smaller, no thermal (temperature difference) stress, and adaptation pressure limit is wide, together
When it is safe and reliable, the service life is long, material save, energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the left side cross-sectional view of Fig. 1；
Fig. 3 is the schematic diagram of internal structure of the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figures 1 to 3, a kind of gas-gas heat exchanger, the heat-exchanging component including shell 1 and inside, shell 1 is by cylinder
The cylinder 11 and left and right end socket 12 of shape are welded pressure-bearing horizontal cylindrical structure, and the bottom of shell 1, which is equipped with, is used to support shell 1
Saddle 6, the upper center left-right position of cylinder 11 is equipped with the entrance sleeve 4 and discharge connection 5 of tube side gas, left and right end socket 12
Outer end in the middle part of be equipped with shell side gas inlet interface 13 and discharge coupling 14, heat-exchanging component includes the heat-exchanging tube bundle of cuboid
2 and tube side gas import bobbin carriage 4a and outlet bobbin carriage 5a, import bobbin carriage 4a and outlet bobbin carriage 5a the upper of heat-exchanging tube bundle 2 is set
End is two independent enclosure spaces being separated by bobbin carriage top plate and bobbin carriage side plate, import bobbin carriage 4a and outlet bobbin carriage 5a
Be correspondingly connected with respectively with the entrance sleeve 4 of tube side gas and discharge connection 5, import bobbin carriage 4a and outlet bobbin carriage 5a inwardly with heat exchange
Space communicates in tube bank 2, and heat-exchanging tube bundle 2 is by front and back side plate 23, upper lower perforated plate 22 and several heat exchanger tubes connected between the two
21 compositions, the quantity of heat exchanger tube 21 divide equally two halves, and gas is downward from import in half heat exchanger tube 21, gas in the other half heat exchanger tube 21
Body is upwardly into outlet, respectively corresponds import bobbin carriage 4a and outlet bobbin carriage 5a；In the left and right ends periphery of heat-exchanging tube bundle 2 and cylinder 11
The gap of wall is blocked using four pieces of sealing plates 7, and sealing plate 7 uses thin-wall construction made of the sheet metal with certain elasticity,
Sheet metal thickness is usually in 2~5mm, and sealing plate 7 is sealed with cylinder by welding, plays what shell side separated with tube side
Effect, since sealing plate 7 exists, can only enter the heat exchange of heat-exchanging tube bundle 2 so that shell side cryogenic gas enters from inlet interface 13
21 external series gap of pipe, in pipe high-temperature gas occur partition heat exchange, thus temperature increase, the shell side gas being heated, equally by
In the presence of outlet end seal plate 7, can only go out from discharge coupling 14.Shell side sewage pipe 16 and pipe are equipped in the bottom of shell 1
Journey sewage pipe 15, wherein tube side sewage pipe 15 is one, and the bottom middle position of shell 1 is arranged in, and shell side sewage pipe 16 is a left side
It is two right, it is arranged at left and right sides of the bottom of shell 1；It is strong that light pipe or finned tube, bellows tube, screwed pipe etc. can be used in heat exchanger tube 21
Change heat-transfer pipe.
Concrete operating principle are as follows:
Tube side high-temperature gas enters import bobbin carriage 4a from entrance sleeve 4, and flow velocity reduces gas wherein, and air-flow is buffered,
21 inside (half for accounting for a total of tubes) of each heat exchanger tube of inflow can be evenly distributed, since heat-exchanging tube bundle 2 is not closed below
Bobbin carriage, from heat exchanger tube 21 come out gas by be full of tube bank cylinder between space, but the outlet of tube side air-flow only one go out
Mouth adapter tube 5 and it is necessary to first pass through inside the other half heat exchanger tube 21, this semi-open space structure design is not only saved
Material is more advantageous to air-flow being uniformly distributed in heat exchanger tube 21, reduces resistance.If 2 lower part of heat-exchanging tube bundle is also made into top
The same bobbin carriage, then fluid will turn round 180 ° in this narrow space, resistance is very big, and proximal end, distal end heat exchanger tube 21
Interior air-flow distribution is simultaneously uneven.
Shell side cryogenic gas enters from inlet interface 13, since sealing plate 7 exists, can only enter the heat exchange of heat-exchanging tube bundle 2
21 external series gap of pipe, in pipe high-temperature gas occur partition heat exchange, thus temperature increase, the shell side gas being heated, equally by
In the presence of outlet end seal plate 7, can only go out from discharge coupling 14.
It is directly rigid with cylinder with tube plate of tube-column heat exchanger since heat-exchanging tube bundle 2 and cylindrical housing 1 are not rigidly connected
Welding is compared, and the heat exchanger of the utility model is heated temperature difference difference when cylinder 11 and heat exchanger tube 21, and respective retractable is eliminated
The thermal (temperature difference) stress of heat exchanger tube 21.
The necessary pressure testing of pressure vessel, the gas-gas heat exchanger pressure testing of the present embodiment are carried out in three steps:
For the first time, heat-exchanging tube bundle 2 checks the welding of each heat exchanger tube 21 individually in external pressure testing, and specific steps are omited.
Second, after the 11 all heat-exchanging components in inside of cylinder all assemble, before welding end socket 12, for inner seal plate
7 do low pressure air seal test, and step main points are as follows: entrance sleeve 4, the discharge connection 5 of capping tube side gas, from 11 lower tube of cylinder
Journey blowdown interface 16 is passed through compressed air, keeps low pressure (such as 0.05MPa), then from 11 both ends of cylinder sealing plate 7 weldering
Seam, can be toward foam liquid be sprayed above, and the bubble not increased such as it is qualified to illustrate that shell side and tube side separation block, in other words shell side, pipe
Two kinds of fluids of journey will not be interpenetrated or be leaked when pressure difference is less than test pressure.Specific test pressure is according to each
The requirement of cases of design determines again.
For the third time, after the completion of all erection weldings, nondestructive testing all, equipment Hydrostatic test is done, step main points are as follows:
Entrance sleeve 4, discharge connection 5, the inlet interface 13 of shell side gas or the discharge coupling 14 of tube side gas are intake simultaneously, in addition into
The mouth of a river, other total interface cappings；Due to the semi-open structure of internal heat component, internal all structural member and heat exchanger tube 21
Inside and outside or pressure at both sides it is balanced, will not be because of compressive deformation or impaired leakage even if thin-walled high pressure.The purpose of this pressure testing is
Check the 1 all visible weld seams in outside of shell, it is unrelated with internal heat component.
The gas-gas heat exchanger of the utility model, can be applicable in fermentation air pretreatment system, use as heater.Pipe
Journey air is the high temperature air of air compressor machine outlet, and shell side air is humid air after cooling.The two air is all from air compressor machine, only
It is that process is successively different.Its tube side, shell side air add up to resistance about 1500~4000Pa, are approximately the 1/5 of traditional tubular heat exchanger
~1/10.
Spatial design inside the utility model gas-gas heat exchanger is original creation, mating manufacturing process, pressure testing mode
It is such.Especially heat exchanger tube will not because design pressure improve and increase wall thickness, this conform exactly to thin-wall tube low thermal resistance, efficiently
Thermal transmission requirement, high pressure and thin-walled meet simultaneously.This is of great significance to manufacturing cost is reduced.
The utility model gas-gas heat exchanger tube side, two kinds of gases of shell side, one cold one heat, can specifically claim cooler, can also claim
Heater, depending on whichever in concrete technology depending on major function.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (7)
1. a kind of gas-gas heat exchanger, the heat-exchanging component including shell and inside, the upper end of shell are equipped with the import of tube side gas
Adapter tube and discharge connection, the left and right ends of shell are equipped with the inlet interface and discharge coupling of shell side gas, it is characterised in that: described
Shell is pressure-bearing horizontal type structure, and heat-exchanging component includes heat-exchanging tube bundle, and the import that the upper end of heat-exchanging tube bundle is equipped with tube side gas connects
The import bobbin carriage and outlet bobbin carriage, heat-exchanging tube bundle that pipe and discharge connection are correspondingly connected with pass through entrance sleeve and discharge connection and shell
Be connected, the gap of the left and right ends periphery of heat-exchanging tube bundle and outer casing inner wall blocked using sealing plate to be formed tube side and shell side every
From the bottom of shell is equipped with shell side sewage pipe and tube side sewage pipe.
2. gas-gas heat exchanger according to claim 1, it is characterised in that: the shell is by columnar cylinder and left and right
End socket is welded, and the inlet interface and discharge coupling of shell side gas are separately positioned on the front center position of left and right end socket, pipe
The entrance sleeve and discharge connection of journey gas are separately positioned on the upper center left-right position of cylinder.
3. gas-gas heat exchanger according to claim 2, it is characterised in that: the import bobbin carriage is by bobbin carriage with outlet bobbin carriage
Two independent enclosure spaces that top plate and bobbin carriage side plate are separated, import bobbin carriage and outlet bobbin carriage are inwardly and in heat-exchanging tube bundle
Space communicates, and import bobbin carriage and outlet bobbin carriage are connected with entrance sleeve and discharge connection respectively outward.
4. gas-gas heat exchanger according to claim 3, it is characterised in that: the heat-exchanging tube bundle is by front and back side plate, up and down
Tube sheet and several set of heat exchange tubes connected between the two at rectangular parallelepiped structure, the quantity of heat exchanger tube divides equally two halves, half heat exchange
Gas is downward from import in managing, and gas is upwardly into outlet in the other half heat exchanger tube, respectively corresponds import bobbin carriage and outlet bobbin carriage.
5. gas-gas heat exchanger according to claim 4, it is characterised in that: the sealing plate is used with the thin of certain elasticity
Thin-wall construction made of steel plate, sealing plate are sealed with cylinder by welding, and shell side and tube side are separated by sealing plate.
6. gas-gas heat exchanger according to any one of claims 1 to 5, it is characterised in that: the bottom of the shell
Equipped with the saddle for being used to support shell, tube side sewage pipe is one, the bottom middle position of shell is arranged in, shell side sewage pipe is
Left and right two, is arranged at left and right sides of the bottom of shell.
7. gas-gas heat exchanger according to claim 4 or 5, it is characterised in that: the heat exchanger tube using light pipe or finned tube,
Bellows tube, screwed pipe augmentation of heat transfer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786749.3U CN209069064U (en) | 2018-10-31 | 2018-10-31 | A kind of gas-gas heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786749.3U CN209069064U (en) | 2018-10-31 | 2018-10-31 | A kind of gas-gas heat exchanger |
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| Publication Number | Publication Date |
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| CN209069064U true CN209069064U (en) | 2019-07-05 |
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| CN201821786749.3U Active CN209069064U (en) | 2018-10-31 | 2018-10-31 | A kind of gas-gas heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184170A (en) * | 2019-06-28 | 2019-08-30 | 陆飞浩 | A kind of fermentation air pretreatment system using plate wing heat transfer technology |
| CN111854498A (en) * | 2020-06-02 | 2020-10-30 | 合肥通用机械研究院有限公司 | High-temperature gas cooler |
-
2018
- 2018-10-31 CN CN201821786749.3U patent/CN209069064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184170A (en) * | 2019-06-28 | 2019-08-30 | 陆飞浩 | A kind of fermentation air pretreatment system using plate wing heat transfer technology |
| CN111854498A (en) * | 2020-06-02 | 2020-10-30 | 合肥通用机械研究院有限公司 | High-temperature gas cooler |
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