CN107764097A - Hydraulic oil heat exchanger - Google Patents
Hydraulic oil heat exchanger Download PDFInfo
- Publication number
- CN107764097A CN107764097A CN201610678881.1A CN201610678881A CN107764097A CN 107764097 A CN107764097 A CN 107764097A CN 201610678881 A CN201610678881 A CN 201610678881A CN 107764097 A CN107764097 A CN 107764097A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- hydraulic oil
- exchanger tube
- protuberance
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- 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
- F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses hydraulic oil heat exchanger, the heat exchanger tube being placed on including housing and bending fold in housing, the inlet connected respectively with heat exchanger tube both ends is provided with the same side of housing, liquid outlet, the cold liquid inlet connected with inside it is provided with the opposite side of the housing, cold liquid outlet, the protuberance of annular is provided with one end inwall of the heat exchanger tube close to liquid outlet direction, and the changeover portion that section is arc-shaped is provided with the both ends of the protuberance, also include multiple division boards being arranged on housing two side, the division board is located in the U-shaped region that the heat exchanger tube is bent to form.The changeover portion that a section is arc-shaped is provided at both ends with protuberance, hydraulic oil is set gently to be flowed into after abrupt deceleration in protuberance, a guide function is played to hydraulic oil simultaneously, that is guiding hydraulic oil is entered directly into protuberance by heat exchanger tube, avoids hydraulic oil from forming vortex in heat exchanger tube and hinder it normally to circulate.
Description
Technical field
The present invention relates to a kind of hydraulic test, in particular to hydraulic oil heat exchanger.
Background technology
Oil cooler is provided with fluid drive vehicle, for entering to the engine motor oil in torque-converters or power drive system
Row cooling, high temperature oil enters after cooler carries out heat exchange with the engine cooling water in cooler, and then machine oil is carried out
Cooling., can be excessive so as to dissipating due to the instantaneous pressure of the machine oil flowed out in closed type hydraulic system when traditional radiator works
Hot device causes to damage, and influences the normal work of radiator.
Send out the content of the invention
It is an object of the invention to provide hydraulic oil heat exchanger, avoids the instantaneous pressure mistake of machine oil flowed out in closed type hydraulic system
Greatly so as to cause to damage to radiator.
The purpose of the present invention is achieved through the following technical solutions：
Hydraulic oil heat exchanger, including housing and bending fold are placed on the heat exchanger tube in housing, are set in the same side of housing
There are the inlet connected respectively with heat exchanger tube both ends, liquid outlet, it is cold provided with being connected with inside it in the opposite side of the housing
Liquid import, cold liquid outlet, the protuberance of annular is provided with one end inwall of the heat exchanger tube close to liquid outlet direction, and in institute
The both ends for stating protuberance are provided with the changeover portion that section is arc-shaped, in addition to multiple division boards being arranged on housing two side,
The division board is located in the U-shaped region that the heat exchanger tube is bent to form.The present invention is in use, coolant is entered by cold liquid inlet
Enter to enclosure interior, when filling coolant in housing, hydraulic oil is flowed into heat exchanger tube by inlet, passes through heat exchanger tube and housing
The heat exchange process of interior coolant so that the temperature of hydraulic oil is quickly reduced, and is then discharged by liquid outlet, and hydraulic pressure is completed with this
The cooling of oil recycles.When hydraulic oil cooling closes to an end, hydraulic oil quickly flows in heat exchanger tube, is flowed out by liquid outlet
When swiftly flowing hydraulic oil larger impact can be caused to hydraulic oil delivery pipe, and then cause entirely to cool down to go out in circulation line
Existing local pressure is concentrated and ruptured, that is, oil leakage phenomenon occurs；In the present invention, before hydraulic oil flows out liquid outlet, changing
The protuberance of annular is installed so that the circulation path size of hydraulic oil diminishes, the hydraulic oil of high-speed motion on the inwall of heat pipe
Necessarily hindered, its flowing velocity is slowed down suddenly, and by protuberance slow down effect after, hydraulic oil is then relative with one
Slow flow velocity outflow liquid outlet, that is, the impact for reducing hydraulic oil to cooling down circulation line is realized, to prevent from cooling down circulation line
Impaired rupture.Also, the changeover portion that a section is arc-shaped is provided at both ends with protuberance, makes hydraulic oil in abrupt deceleration
Gently flow into afterwards in protuberance, while a guide function is played to hydraulic oil, that is, guide hydraulic oil directly to be entered by heat exchanger tube
Enter into protuberance, avoid hydraulic oil from forming vortex in heat exchanger tube and hinder it normally to circulate.
Wherein, heat exchanger tube bending fold forms multiple flat segments and bending section, and the multiple thermal insulation boards set to exchange heat
Be isolated from each other between the multiple flat segments and bending section of pipe, coolant it is carried out it is cold go cooling when can carry out at segmentation
Reason, that is, the high temperature hydraulic oil being introduced into heat exchanger tube carries out a certain degree of cooling in its independent cooled region, and this is cold
But region face cold liquid inlet, and then realize the maximum heat exchange efficiency of the cooled region, hydraulic oil continue to pass into next
Individual bending section or flat segments, hydraulic fluid temperature now taper off state, and corresponding coolant temperature is in be incremented by state, directly
The end that heat exchanger tube is moved to hydraulic oil is discharged by liquid outlet, and temperature is increased to a certain degree of coolant and then gone out by cold liquid
Mouth discharge, that is, realize the cooling step by step of hydraulic oil, while the heat in each cooled region will not be sealed in mutually, realize hydraulic pressure
Optimal heat exchange efficiency of the oil in housing.
The heat exchanger tube is finned tube.Preferably, utilize the protrusion on finned tube as heat exchanger tube from finned tube
Multiple fins increase the contact area of coolant in heat exchanger tube and housing, realize that heat exchange is most between hydraulic oil and coolant
Big efficiency, shorten the cool time of hydraulic oil.
The internal diameter of the protuberance is 1/3rd of the heat exchange bore.Internal diameter of the internal diameter of protuberance than heat exchanger tube
It is small, ensure hydraulic oil normal circulation without as formed block on the premise of, the internal diameter of protuberance is dimensioned to change
/ 3rd of heat pipe internal diameter size so that the reduced velocity flow of hydraulic oil is without forming the impact to cooling down circulation line.
The division board is XPS extruded sheets.Preferably, XPS extruded sheets have high thermal resistance, it is low it is linear, expansion ratio is low
Feature, the rate of closed hole of its structure have reached more than 99%, have formed vacuum layer, avoid air flow from radiating, it can be ensured that its heat insulating ability
Can it is lasting and stably, therefore, during hydraulic oil cool step by step, further improve division board heat insulation effect and
Heat isolation effect.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is provided at both ends with the changeover portion that a section is arc-shaped in protuberance, makes hydraulic oil after abrupt deceleration
Gently flow into protuberance, while a guide function is played to hydraulic oil, that is, guide hydraulic oil to be directly entered by heat exchanger tube
Into protuberance, hydraulic oil is avoided to form vortex in heat exchanger tube and hinder it normally to circulate；
2nd, the present invention increases heat exchanger tube and shell from finned tube as heat exchanger tube using multiple fins of the protrusion on finned tube
The contact area of internal coolant, realizes the maximal efficiency of heat exchange between hydraulic oil and coolant, shortens the cooling of hydraulic oil
Time；
3rd, the internal diameter of protuberance is smaller than the internal diameter of heat exchanger tube in the present invention, is ensureing the normal circulation of hydraulic oil without as formation
On the premise of blocking, the internal diameter of protuberance is dimensioned to 1/3rd of heat exchange bore size so that the stream of hydraulic oil
Speed slows down without forming the impact to cooling down circulation line.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Mark and corresponding parts title in accompanying drawing：
1- inlets, 2- liquid outlets, 3- heat exchanger tubes, 31- changeover portions, 32- protuberances, 4- housings, 5- cold liquid inlets, 6- are cold, and liquid goes out
Mouth, 7- division boards.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment is placed on the heat exchanger tube 3 in housing 4 including housing 4 and bending fold, in housing
4 the same side is provided with the inlet 1 connected respectively with the both ends of heat exchanger tube 3, liquid outlet 2, is provided with the opposite side of the housing 4
With its internal cold liquid inlet 5, cold liquid outlet 6 connected, set in the heat exchanger tube 3 on one end inwall in the direction of liquid outlet 2
There is the protuberance 32 of annular, and the changeover portion 31 that section is arc-shaped is provided with the both ends of the protuberance 32, in addition to it is multiple
The division board 7 being arranged on the two side of housing 4, the division board 7 are located in the U-shaped region that the heat exchanger tube 3 is bent to form.
In use, coolant is entered inside housing 4 by cold liquid inlet 5, the hydraulic oil when filling coolant in housing
Flowed into by inlet 1 in heat exchanger tube 3, pass through the heat exchange process of coolant in heat exchanger tube 3 and housing so that the temperature of hydraulic oil
It is quickly reduced, is then discharged by liquid outlet 2, the cooling that hydraulic oil is completed with this recycles.It will be tied in hydraulic oil cooling
Shu Shi, hydraulic oil quickly flow in heat exchanger tube 3, and swiftly flowing hydraulic oil can convey to hydraulic oil when being flowed out by liquid outlet 2
Pipe causes larger impact, and then causes entirely to cool down and occur local pressure concentration in circulation line and rupture, that is, occurs
Oil leakage phenomenon；In the present invention, before hydraulic oil flows out liquid outlet 2, the protuberance of annular is installed on the inwall of heat exchanger tube 3
32 so that the circulation path size of hydraulic oil diminishes, and the hydraulic oil of high-speed motion is necessarily hindered, and makes its flowing velocity suddenly
Slow down, and by protuberance 32 slow down effect after, hydraulic oil is then with a relatively slow flow velocity outflow liquid outlet 2, i.e. reality
Impact of the hydraulic oil to cooling circulation line is now reduced, to prevent from cooling down the impaired rupture of circulation line.Also, in protuberance 32
The changeover portion 31 that a section is arc-shaped is provided at both ends with, hydraulic oil is gently flowed into protuberance 32 after abrupt deceleration
It is interior, while a guide function is played to hydraulic oil, that is, guide hydraulic oil to be entered directly into by heat exchanger tube 3 in protuberance 32, keep away
Exempt from hydraulic oil to form vortex in heat exchanger tube 3 and hinder it normally to circulate.
Wherein, the bending fold of heat exchanger tube 3 forms multiple flat segments and bending section, and the multiple thermal insulation boards 7 set to change
Be isolated from each other between the multiple flat segments and bending section of heat pipe 3, coolant it is carried out it is cold go cooling when can be segmented
Processing, that is, the high temperature hydraulic oil being introduced into heat exchanger tube 3 carries out a certain degree of cooling in its independent cooled region, and is somebody's turn to do
Cooled region face cold liquid inlet 5, and then the maximum heat exchange efficiency of the cooled region is realized, hydraulic oil continues to pass into down
One bending section or flat segments, hydraulic fluid temperature now taper off state, and corresponding coolant temperature is in be incremented by state,
Until the end that hydraulic oil is moved to heat exchanger tube 3 is discharged by liquid outlet 2, and temperature is increased to a certain degree of coolant then by cold
The discharge of liquid outlet 6, that is, realize the cooling step by step of hydraulic oil, while the heat in each cooled region will not be sealed in mutually, real
Existing optimal heat exchange efficiency of the hydraulic oil in housing 4.
Preferably, increase heat exchange using multiple fins of the protrusion on finned tube as heat exchanger tube 3 from finned tube
Pipe 3 and the contact area of coolant in housing, the maximal efficiency of heat exchange between hydraulic oil and coolant is realized, shortens hydraulic oil
Cool time.
The internal diameter of protuberance 32 is smaller than the internal diameter of heat exchanger tube 3, is ensureing the normal circulation of hydraulic oil without stifled as being formed
On the premise of plug, the internal diameter of protuberance 32 is dimensioned to 1/3rd of the internal diameter size of heat exchanger tube 3 so that the stream of hydraulic oil
Speed slows down without forming the impact to cooling down circulation line.
Preferably, XPS extruded sheets have the characteristics of high thermal resistance, low linear, expansion ratio is low, the rate of closed hole of its structure reaches
More than 99%, vacuum layer is formed, avoids air flow from radiating, it can be ensured that its heat-insulating property lasting and stably, therefore,
Hydraulic oil is carried out during cooling step by step, further improves the heat insulation effect and heat isolation effect of division board 7.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (4)
1. hydraulic oil heat exchanger, including housing（4）And bending fold is placed on housing（4）Interior heat exchanger tube（3）, in housing
（4）The same side be provided with respectively with heat exchanger tube（3）The inlet of both ends connection（1）, liquid outlet（2）, it is characterised in that：Institute
State housing（4）Opposite side be provided with and its internal cold liquid inlet connected（5）, cold liquid outlet（6）, in the heat exchanger tube（3）Lean on
Nearly liquid outlet（2）One end inwall in direction is provided with the protuberance of annular（32）, and in the protuberance（32）Both ends be provided with
Section is the changeover portion of arc-shaped（31）, in addition to multiple it is arranged on housing（4）Division board on two side（7）, the isolation
Plate（7）Positioned at the heat exchanger tube（3）In the U-shaped region being bent to form.
2. hydraulic oil heat exchanger according to claim 1, it is characterised in that：The heat exchanger tube（3）For finned tube.
3. hydraulic oil heat exchanger according to claim 1, it is characterised in that：The protuberance（32）Internal diameter changed to be described
Heat pipe（3）/ 3rd of internal diameter.
4. hydraulic oil heat exchanger according to claim 1, it is characterised in that：The division board（7）For XPS extruded sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678881.1A CN107764097A (en) | 2016-08-17 | 2016-08-17 | Hydraulic oil heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678881.1A CN107764097A (en) | 2016-08-17 | 2016-08-17 | Hydraulic oil heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764097A true CN107764097A (en) | 2018-03-06 |
Family
ID=61261343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610678881.1A Withdrawn CN107764097A (en) | 2016-08-17 | 2016-08-17 | Hydraulic oil heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940219A (en) * | 2019-10-28 | 2020-03-31 | 大唐水电科学技术研究院有限公司 | Hydraulic and hydroelectric engineering circulation cooling system |
-
2016
- 2016-08-17 CN CN201610678881.1A patent/CN107764097A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940219A (en) * | 2019-10-28 | 2020-03-31 | 大唐水电科学技术研究院有限公司 | Hydraulic and hydroelectric engineering circulation cooling system |
| CN110940219B (en) * | 2019-10-28 | 2020-12-29 | 大唐水电科学技术研究院有限公司 | Hydraulic and hydroelectric engineering circulation cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |