CN105351288A - Heat exchanger for hydraulic oil - Google Patents
Heat exchanger for hydraulic oil Download PDFInfo
- Publication number
- CN105351288A CN105351288A CN201510878769.8A CN201510878769A CN105351288A CN 105351288 A CN105351288 A CN 105351288A CN 201510878769 A CN201510878769 A CN 201510878769A CN 105351288 A CN105351288 A CN 105351288A
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- CN
- China
- Prior art keywords
- hydraulic oil
- heat exchanging
- exchanging tube
- heat exchange
- heat exchanger
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger for hydraulic oil. The heat exchanger comprises a shell and a heat exchange pipe placed in the shell in a bent and folded mode. A liquid inlet and a liquid outlet are formed in the same side of the shell and communicated with the two ends of the heat exchange pipe respectively. A cooling liquid inlet and a cooling liquid outlet are formed in the other side of the shell and communicated with the interior of the shell. An annular protruding part is arranged on the inner wall of the end, close to the liquid outlet, of the heat exchange pipe, and the two ends of the protruding part are each provided with a transition segment with an arc-shaped section. The heat exchanger further comprises a plurality of separation plates arranged on the two side walls of the shell. The separation plates are located in a U-shaped area formed by bending the heat exchange pipe. The two ends of the protruding part are each provided with the corresponding transition segment with the arc-shaped section, so that the hydraulic oil gently flows into the protruding part after being decelerated suddenly; meanwhile, the transition segments play a role in guiding the hydraulic oil, namely the hydraulic oil is guided to directly enter the protruding part from the heat exchange pipe, and the situation that an eddy is formed by the hydraulic oil in the heat exchange pipe and consequently normal circulation of the hydraulic oil is hindered is prevented.
Description
Technical field
The present invention relates to a kind of hydraulic equipment, specifically refer to hydraulic oil heat exchanger.
Background technique
Be provided with oil cooler in automatic speed changing vehicle, for cooling the engine motor oil in torque-converters or power transmission system, carry out heat exchange with the engine cooling water in cooler after high temperature oil enters cooler, and then machine oil is cooled.During traditional radiator work, can be excessive thus damage is caused to radiator due to the instantaneous pressure of the machine oil flowed out in closed type hydraulic system, affect the normal work of radiator.
Send out
summary of the invention
The object of the present invention is to provide hydraulic oil heat exchanger, avoid the instantaneous pressure of the machine oil flowed out in closed type hydraulic system excessive thus damage is caused to radiator.
Object of the present invention is achieved through the following technical solutions:
Hydraulic oil heat exchanger, comprise housing and bending fold and be placed on heat exchanging tube in housing, the liquid entering hole be communicated with heat exchanging tube two ends is respectively provided with in the same side of housing, liquid outlet, the cold liquid import that be communicated with inner with it is provided with at the opposite side of described housing, cold liquid outlet, on one end inwall in liquid outlet direction, the protuberance of annular is provided with at described heat exchanging tube, and be provided with at the two ends of described protuberance the changeover portion that cross section is arc-shaped, also comprise multiple isolating plate be arranged on housing two side, described isolating plate is positioned at the U-shaped region that described heat exchanging tube is bent to form.When the present invention uses, cooling liquid is led to supercooled liquid import and is entered into enclosure interior, when filling cooling liquid in housing, hydraulic oil flows in heat exchanging tube by liquid entering hole, by the heat exchange operation of cooling liquid in heat exchanging tube and housing, the temperature of hydraulic oil is reduced fast, then discharged by liquid outlet, use with the cool cycles that this completes hydraulic oil.When hydraulic oil cooling closes to an end, hydraulic oil flows fast in heat exchanging tube, when being flowed out by liquid outlet, swiftly flowing hydraulic oil can cause larger impact to hydraulic oil delivery pipe, and then causes occurring in whole cool cycles pipeline that local pressure is concentrated and occurs breaking, and namely occurs oil leakage phenomenon; In the present invention, before hydraulic oil flows out liquid outlet, the inwall of heat exchanging tube is provided with the protuberance of annular, the circulation path size of hydraulic oil is diminished, and the hydraulic oil of high-speed motion is subject to certain obstruction, and its flowing velocity is slowed down suddenly, and by protuberance slow down effect after, hydraulic oil then flows out liquid outlet with a relative flow velocity slowly, and namely realize reducing hydraulic oil to the impact of cool cycles pipeline, to prevent, cool cycles pipeline is impaired to break.And, being provided with a cross section at the two ends of protuberance is the changeover portion of arc-shaped, hydraulic oil is gently flowed in protuberance after abrupt deceleration, a guide function is played to hydraulic oil simultaneously, namely guide hydraulic oil directly to be entered in protuberance by heat exchanging tube, avoid hydraulic oil form eddy current at heat exchanging tube and hinder it normally to circulate.
Wherein, heat exchanging tube bending fold forms multiple flat segments and bending section, and the multiple thermal baffles arranged make mutually isolated between multiple flat segments of heat exchanging tube and bending section opening, cooling liquid it is carried out cold go cooling time can carry out gravity cascade system, namely the high-temperature liquid force feed be introduced in heat exchanging tube carries out cooling to a certain degree in its independently cooled region, and this cooled region is just to cold liquid import, and then realize the maximum heat exchange efficiency of this cooled region, hydraulic oil continues circulation and enters next bending section or flat segments, hydraulic fluid temperature now tapers off state, and corresponding coolant temperature is in increasing progressively state, until the end that hydraulic oil moves to heat exchanging tube is discharged by liquid outlet, increase in temperature cooling liquid to a certain extent is then exported by cold liquid and discharges, namely the cooling step by step of hydraulic oil is realized, heat simultaneously in each cooled region can not seal in mutually, realize the best heat exchange efficiency of hydraulic oil in housing.
Described heat exchanging tube is fin tube.As preferably, select fin tube as heat exchanging tube, utilize outstanding multiple fins on fin tube to increase the area of contact of cooling liquid in heat exchanging tube and housing, realize the maximal efficiency of heat exchange between hydraulic oil and cooling liquid, the cool time of shortening hydraulic oil.
The internal diameter of described protuberance is 1/3rd of described heat exchanging tube internal diameter.The internal diameter of protuberance is less than the internal diameter of heat exchanging tube, ensureing the normal circulation of hydraulic oil under being unlikely to the prerequisite forming blocking, the internal diameter size of protuberance is set to 1/3rd of heat exchanging tube internal diameter size, makes the reduced velocity flow of hydraulic oil and the impact that can not be formed cool cycles pipeline.
Described isolating plate is XPS extruded sheet.As preferably, XPS extruded sheet has high thermal resistance, low linear, feature that expansion ratio is low, the rate of closed hole of its structure reaches more than 99%, form vacuum layer, avoid air to flow to dispel the heat, the lasting and stable of its thermal insulation property can be guaranteed, therefore, in the process that hydraulic oil is lowered the temperature step by step, improve heat insulation effect and the heat isolation effect of isolating plate further.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention is provided with a cross section at the two ends of protuberance is the changeover portion of arc-shaped, hydraulic oil is gently flowed in protuberance after abrupt deceleration, a guide function is played to hydraulic oil simultaneously, namely guide hydraulic oil directly to be entered in protuberance by heat exchanging tube, avoid hydraulic oil form eddy current at heat exchanging tube and hinder it normally to circulate;
2, the present invention selects fin tube as heat exchanging tube, utilizes outstanding multiple fins on fin tube to increase the area of contact of cooling liquid in heat exchanging tube and housing, realizes the maximal efficiency of heat exchange between hydraulic oil and cooling liquid, the cool time of shortening hydraulic oil;
3, in the present invention, the internal diameter of protuberance is less than the internal diameter of heat exchanging tube, ensureing the normal circulation of hydraulic oil under being unlikely to the prerequisite forming blocking, the internal diameter size of protuberance is set to 1/3rd of heat exchanging tube internal diameter size, makes the reduced velocity flow of hydraulic oil and the impact that can not be formed cool cycles pipeline.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged view at A place in Fig. 1;
Mark and corresponding component title in accompanying drawing:
1-liquid entering hole, 2-liquid outlet, 3-heat exchanging tube, 31-changeover portion, 32-protuberance, 4-housing, the import of 5-cold liquid, the cold liquid outlet of 6-, 7-isolating plate.
Embodiment
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment comprises housing 4 and bending fold and is placed on heat exchanging tube 3 in housing 4, the liquid entering hole 1 be communicated with heat exchanging tube 3 two ends is respectively provided with in the same side of housing 4, liquid outlet 2, the cold liquid import 5 that be communicated with inner with it is provided with at the opposite side of described housing 4, cold liquid outlet 6, on one end inwall in liquid outlet 2 direction, the protuberance 32 of annular is provided with at described heat exchanging tube 3, and be provided with at the two ends of described protuberance 32 changeover portion 31 that cross section is arc-shaped, also comprise multiple isolating plate 7 be arranged on housing 4 two side, described isolating plate 7 is positioned at the U-shaped region that described heat exchanging tube 3 is bent to form.
During use, cooling liquid is led to supercooled liquid import 5 and is entered into housing 4 inside, when filling cooling liquid in housing, hydraulic oil flows in heat exchanging tube 3 by liquid entering hole 1, by the heat exchange operation of heat exchanging tube 3 with cooling liquid in housing, the temperature of hydraulic oil is reduced fast, then discharged by liquid outlet 2, use with the cool cycles that this completes hydraulic oil.When hydraulic oil cooling closes to an end, hydraulic oil is flowing fast in heat exchanging tube 3, when being flowed out by liquid outlet 2, swiftly flowing hydraulic oil can cause larger impact to hydraulic oil delivery pipe, and then cause in whole cool cycles pipeline, occurring that local pressure is concentrated and occurs breaking, namely there is oil leakage phenomenon; In the present invention, before hydraulic oil flows out liquid outlet 2, the inwall of heat exchanging tube 3 is provided with the protuberance 32 of annular, the circulation path size of hydraulic oil is diminished, and the hydraulic oil of high-speed motion is subject to certain obstruction, and its flowing velocity is slowed down suddenly, and by protuberance 32 slow down effect after, hydraulic oil then flows out liquid outlet 2 with a relative flow velocity slowly, and namely realize reducing hydraulic oil to the impact of cool cycles pipeline, to prevent, cool cycles pipeline is impaired to break.And, the changeover portion 31 that a cross section is arc-shaped is provided with at the two ends of protuberance 32, hydraulic oil is gently flowed in protuberance 32 after abrupt deceleration, a guide function is played to hydraulic oil simultaneously, namely guide hydraulic oil directly to be entered in protuberance 32 by heat exchanging tube 3, avoid hydraulic oil form eddy current at heat exchanging tube 3 and hinder it normally to circulate.
Wherein, heat exchanging tube 3 bending fold forms multiple flat segments and bending section, and the multiple thermal baffles 7 arranged make mutually isolated between multiple flat segments of heat exchanging tube 3 and bending section opening, cooling liquid it is carried out cold go cooling time can carry out gravity cascade system, namely the high-temperature liquid force feed be introduced in heat exchanging tube 3 carries out cooling to a certain degree in its independently cooled region, and this cooled region is just to cold liquid import 5, and then realize the maximum heat exchange efficiency of this cooled region, hydraulic oil continues circulation and enters next bending section or flat segments, hydraulic fluid temperature now tapers off state, and corresponding coolant temperature is in increasing progressively state, until the end that hydraulic oil moves to heat exchanging tube 3 is discharged by liquid outlet 2, increase in temperature cooling liquid to a certain extent then exports 6 by cold liquid and discharges, namely the cooling step by step of hydraulic oil is realized, heat simultaneously in each cooled region can not seal in mutually, realize the best heat exchange efficiency of hydraulic oil in housing 4.
As preferably, select fin tube as heat exchanging tube 3, utilize the multiple fins given prominence on fin tube to increase heat exchanging tube 3 and the area of contact of cooling liquid in housing, realize the maximal efficiency of heat exchange between hydraulic oil and cooling liquid, shorten the cool time of hydraulic oil.
The internal diameter of protuberance 32 is less than the internal diameter of heat exchanging tube 3, ensureing the normal circulation of hydraulic oil under being unlikely to the prerequisite forming blocking, the internal diameter size of protuberance 32 is set to 1/3rd of heat exchanging tube 3 internal diameter size, makes the reduced velocity flow of hydraulic oil and the impact that can not be formed cool cycles pipeline.
As preferably, XPS extruded sheet has high thermal resistance, low linear, feature that expansion ratio is low, the rate of closed hole of its structure reaches more than 99%, form vacuum layer, avoid air to flow to dispel the heat, the lasting and stable of its thermal insulation property can be guaranteed, therefore, in the process that hydraulic oil is lowered the temperature step by step, improve heat insulation effect and the heat isolation effect of isolating plate 7 further.
Above-described embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. hydraulic oil heat exchanger, comprise housing (4) and bending fold and be placed on heat exchanging tube (3) in housing (4), the liquid entering hole (1) be communicated with heat exchanging tube (3) two ends is respectively provided with in the same side of housing (4), liquid outlet (2), it is characterized in that: be provided with the cold liquid import (5) that be communicated with inner with it at the opposite side of described housing (4), cold liquid outlet (6), on one end inwall in liquid outlet (2) direction, the protuberance (32) of annular is provided with at described heat exchanging tube (3), and the changeover portion (31) that cross section is arc-shaped is provided with at the two ends of described protuberance (32), also comprise multiple isolating plate (7) be arranged on housing (4) two side, described isolating plate (7) is positioned at the U-shaped region that described heat exchanging tube (3) is bent to form.
2. hydraulic oil heat exchanger according to claim 1, is characterized in that: described heat exchanging tube (3) is fin tube.
3. hydraulic oil heat exchanger according to claim 1, is characterized in that: the internal diameter of described protuberance (32) is 1/3rd of described heat exchanging tube (3) internal diameter.
4. hydraulic oil heat exchanger according to claim 1, is characterized in that: described isolating plate (7) is XPS extruded sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878769.8A CN105351288A (en) | 2015-12-04 | 2015-12-04 | Heat exchanger for hydraulic oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878769.8A CN105351288A (en) | 2015-12-04 | 2015-12-04 | Heat exchanger for hydraulic oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351288A true CN105351288A (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510878769.8A Pending CN105351288A (en) | 2015-12-04 | 2015-12-04 | Heat exchanger for hydraulic oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667672A (en) * | 2018-12-06 | 2019-04-23 | 芜湖市努尔航空信息科技有限公司 | A kind of aero-engine cooling down management system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202811665U (en) * | 2012-09-26 | 2013-03-20 | 汝州市小屯新升陶瓷原料有限公司 | Water-cooled cooling mechanism for hydraulic molding machine |
| CN203453198U (en) * | 2013-07-10 | 2014-02-26 | 天津市裕盛液压机械有限公司 | A hydraulic apparatus cooling device |
| JP2015175574A (en) * | 2014-03-17 | 2015-10-05 | 株式会社コベルコ マテリアル銅管 | Return bend pipe for heat exchanger, heat transfer tube for heat exchanger, heat exchanger and process of manufacturing heat exchanger |
| CN204716672U (en) * | 2015-04-07 | 2015-10-21 | 天津市裕泰机械有限责任公司 | A kind of hydraulic pressure cooling defoaming device |
| CN205154815U (en) * | 2015-12-04 | 2016-04-13 | 四川海搏液压机械有限公司 | Hydraulic oil heat transfer structure |
-
2015
- 2015-12-04 CN CN201510878769.8A patent/CN105351288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202811665U (en) * | 2012-09-26 | 2013-03-20 | 汝州市小屯新升陶瓷原料有限公司 | Water-cooled cooling mechanism for hydraulic molding machine |
| CN203453198U (en) * | 2013-07-10 | 2014-02-26 | 天津市裕盛液压机械有限公司 | A hydraulic apparatus cooling device |
| JP2015175574A (en) * | 2014-03-17 | 2015-10-05 | 株式会社コベルコ マテリアル銅管 | Return bend pipe for heat exchanger, heat transfer tube for heat exchanger, heat exchanger and process of manufacturing heat exchanger |
| CN204716672U (en) * | 2015-04-07 | 2015-10-21 | 天津市裕泰机械有限责任公司 | A kind of hydraulic pressure cooling defoaming device |
| CN205154815U (en) * | 2015-12-04 | 2016-04-13 | 四川海搏液压机械有限公司 | Hydraulic oil heat transfer structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667672A (en) * | 2018-12-06 | 2019-04-23 | 芜湖市努尔航空信息科技有限公司 | A kind of aero-engine cooling down management system |
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| PB01 | Publication | ||
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Application publication date: 20160224 |