CN116929115A - Efficient heat exchange system and oil injection screw air compressor - Google Patents
Efficient heat exchange system and oil injection screw air compressor Download PDFInfo
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- CN116929115A CN116929115A CN202311136779.5A CN202311136779A CN116929115A CN 116929115 A CN116929115 A CN 116929115A CN 202311136779 A CN202311136779 A CN 202311136779A CN 116929115 A CN116929115 A CN 116929115A
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- oil
- air
- heat exchange
- collecting pipe
- plate body
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- 238000002347 injection Methods 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 192
- 239000010687 lubricating oil Substances 0.000 claims description 39
- 238000000926 separation method Methods 0.000 claims description 31
- 238000005192 partition Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 40
- 230000000694 effects Effects 0.000 description 19
- 230000002035 prolonged effect Effects 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The application belongs to the field of air compressors, and provides a high-efficiency heat exchange system and an oil injection screw air compressor, wherein the high-efficiency heat exchange system comprises a heat exchanger, the heat exchanger comprises a plate body, a first oil collecting pipe and a second oil collecting pipe which are respectively arranged at two ends of the plate body, a plurality of oil channels and a plurality of air channels are alternately arranged in the plate body at intervals, the first oil collecting pipe and the second oil collecting pipe are communicated with the oil channels, an oil inlet joint is arranged on the first oil collecting pipe, an oil outlet joint is arranged on the first oil collecting pipe or the second oil collecting pipe, an air inlet and an air outlet which are communicated with the air channels are arranged on the side surface of the plate body, the air inlet is opposite to the oil inlet joint, and the oil outlet joint is opposite to the air outlet; the oil injection screw air compressor comprises a main machine and the efficient heat exchange system, wherein an oil delivery port of the main machine is communicated with an oil outlet joint, and an oil discharge port of the main machine is communicated with an oil inlet joint. This high-efficient heat transfer system and have its oil injection screw air compressor machine have heat exchange efficiency high, the advantage that the noise is low.
Description
Technical Field
The application relates to the field of air compressors, in particular to a high-efficiency heat exchange system and an oil injection screw air compressor.
Background
At present, an aluminum fin type heat exchanger is commonly adopted as a cooler of an air-cooled oil injection screw compressor in the market, lubricating oil flows in an inner channel of the aluminum fin type heat exchanger, an air guide cover is designed on the side face of the aluminum fin type heat exchanger, an axial-flow cooling fan is installed at the air inlet end of the air guide cover and rotates under the driving of a motor, the cooling fan rotates to drive cooling air to enter the air guide cover from the outside, and then flows through an outer channel (air channel) of the aluminum fin type heat exchanger, and lubricating oil in the inner channel (oil channel) transfers heat to the outer fin of the outer channel through an inner fin and then transfers heat to cooling air through a convection surface, so that the heat of the lubricating oil is taken away.
Because the wind pressure provided by the axial flow fan is usually lower, the thickness of the cooler is usually not more than 120mm, the length distance of the surface of the fin through which cooling wind passes is only 120mm, the time for the cooling wind to pass through the fin is short, the heat transfer efficiency is low, the surface of the outer fin of the cooler is separated from the surface of the outer fin of the cooler after heat exchange, in addition, due to the consideration of the height dimension (reducing cost) of the screw compressor unit, the height distance is limited when the air guide cover is designed, the distance between the fan blades and the aluminum fin type cooler core is limited when the axial flow cooling fan is arranged at the bottom of the air guide cover, the air quantity around the fan blades is large when the axial flow fan is operated, the air quantity in the middle area is small, the air quantity passing through the middle part of the cooler is almost not caused by the existence of the resistance of the cooler, the fin in the middle part of the cooler almost has the heat exchange effect, and in order to achieve the desired heat exchange effect, the heat exchange area of the cooler needs to be further increased, and the cost of the machine is increased.
In addition, the fins of the outer channel through which cooling air flows are of an open structure which is in direct contact with the external environment, so that noise of the machine is high, a large amount of dust is easily accumulated on the surfaces of the fins of the outer channel of the cooler along with the increase of service time, heat resistance is increased, heat exchange coefficient is reduced, heat exchange effect is further deteriorated, lubricating oil is coked when serious, and the machine cannot normally operate due to high temperature.
The technical problems to be solved by the application are as follows: how to improve the efficiency of lubricating oil heat exchange of the oil injection screw air compressor.
Disclosure of Invention
In order to overcome the defects of the prior art, the application aims to provide the efficient heat exchange system with high heat exchange efficiency and low noise and the oil injection screw air compressor.
The technical scheme adopted by the application is as follows: the utility model provides a high-efficient heat transfer system, including the heat exchanger, the heat exchanger includes the plate body, and set up first collection oil pipe and the second collection oil pipe at the plate body both ends respectively, the plate body is provided with a plurality of oil ducts and a plurality of wind channels in turn at the interval, first collection oil pipe and second collection oil pipe all communicate with the oil duct, be provided with the oil feed on the first collection oil pipe and connect, be provided with out the oil joint on first collection oil pipe or the second collection oil pipe, the plate body side is equipped with air intake and the air outlet with the wind channel intercommunication, the air intake sets up relatively with the oil feed joint, it sets up relatively with the air outlet to go out the oil joint.
According to the efficient heat exchange system, the plurality of oil ducts and the air duct are alternately arranged in the plate body, and the air duct is of the semi-closed structure, namely, cooling air can only enter the air duct from the air inlet of the air duct and then is discharged to the outside from the air outlet, so that the cooling air is more concentrated, the contact time of the cooling air and the oil ducts is prolonged as much as possible in a limited space, the contact area is increased, the loss of wind power is reduced, the energy is saved, the heat exchange effect is prevented from being influenced due to the fact that external dust is accumulated on the surface of the heat exchanger, and the whole structure of the heat exchange system is compact.
In addition, the heat exchange system can reduce the noise generated by the operation of the main engine and the fan in the machine, and the air outlet is greatly reduced compared with the fully-opened air duct due to the semi-closed structure of the air duct, so that the noise escaping from the plate body through the air duct is greatly reduced.
In some embodiments, a first oil separator is disposed within the first oil collection pipe, the first oil separator dividing the first oil collection pipe into a plurality of independent chambers. Through setting up first oil removal piece, become a plurality of cavities with first oil collecting pipe internal partition, change the flow direction of the interior lubricating oil of some oil ducts to the extension lubricating oil is at the internal route of flowing of board, is favorable to improving the heat transfer effect.
In some embodiments, the number of the first oil separation sheets is one, the first oil separation sheets divide the interior of the first oil collecting pipe into two independent chambers, the flowing directions of lubricating oil in the oil channels corresponding to the two chambers are opposite, and the two chambers are respectively communicated with the oil inlet joint and the oil outlet joint. Through set up a first oil separation piece in first oil collecting pipe inside, become two independent cavities with first oil collecting pipe internal partition, be about to a plurality of oil ducts divide into two parts, and the flow direction of the lubricating oil of two part oil ducts is opposite moreover to prolonged the route that lubricating oil flowed in the plate body, be favorable to lubricating oil to carry out abundant heat transfer, improved heat transfer effect.
In some embodiments, the heat exchanger further comprises an air collecting pipe, the air collecting pipe is arranged on the side face of the plate body, the air collecting pipe is arranged at one end, far away from the air inlet, of the plate body, the air inlet is communicated with one part of the air channel, the other part of the air channel is communicated with the air outlet, and the air collecting pipe is communicated with the two parts of the air channels. Through setting up the air-collecting duct, correspond the different wind channel of intercommunication two parts cooling air circulation direction, prolonged the route that the cooling air circulated in the plate body for cooling air and lubricating oil can fully carry out the heat exchange, promote the heat transfer effect.
In some embodiments, when the number of the first oil separation sheets is two or more, the second oil separation sheets are arranged inside the second oil collection pipe, the second oil separation sheets divide the interior of the second oil collection pipe into a plurality of independent oil collection cavities, the two ends of the side face of the plate body are respectively provided with an air collection pipe, the air collection pipes are communicated with the air flue, and wind shields are arranged in the air collection pipes and divide the air collection pipes into a plurality of independent air collection cavities. When the quantity of first oil removal piece is two or more, set up the second oil removal piece in second oil collecting pipe correspondingly, be favorable to prolonging the route that lubricating oil circulated in the plate body, in order to make cooling air and lubricating oil can fully carry out the heat exchange, through setting up the air collecting pipe at plate body side both ends to set up the weather shield in the air collecting pipe, can make the cooling air keep unanimous at the route that the plate body circulated and lubricating oil circulation path's length, ensure the heat transfer effect.
In some embodiments, the filter further comprises a centrifugal fan, wherein the air outlet end of the centrifugal fan is communicated with the air inlet, and the air inlet end of the centrifugal fan is covered with the filter. Compared with an axial flow fan, the centrifugal fan has the advantages that the generated air flow wind pressure is larger, the air flow is more concentrated, the centrifugal fan supplies air to the air channel, the heat exchange effect can be improved, the filter element is arranged at the air inlet end, the entering air is purified, the air channel is prevented from being blocked by external sundries, and the service life of the heat exchanger is prolonged.
In some embodiments, the air outlet end of the centrifugal fan is connected with a connecting cover, and the connecting cover is communicated with the air outlet end of the centrifugal fan and the air outlet. The centrifugal fan can be conveniently installed by arranging the connecting cover, and the air flow from the air outlet end of the centrifugal fan can directly enter the air duct, so that the loss of the air flow is reduced.
In some embodiments, the air outlet and the air inlet are respectively arranged on two opposite sides of the plate body. Through setting up air outlet and air intake respectively in the opposite both sides of plate body, can avoid the air current that blows out from the air outlet to be sent to the air intake again directly, influence heat transfer effect.
In some embodiments, the cross section of the oil passage is one of rectangular, oblong or elliptical, and the long side of the oil passage is disposed on the side that meets the air passage. The long side of the oil duct is arranged on the side surface connected with the air duct, so that the contact area between the air duct and the oil duct can be increased, and the heat exchange efficiency is improved.
The utility model provides an oil injection screw air compressor machine, includes host computer, oil-gas separation jar and above-mentioned high-efficient heat transfer system, and the oil delivery port and the play oil joint intercommunication of host computer, the gas vent of host computer and the input port intercommunication of oil-gas separation jar, the oil discharge port and the oil feed joint intercommunication of oil-gas separation jar.
Drawings
FIG. 1 is a schematic view of the overall structure of a high efficiency heat exchange system according to a preferred embodiment of the present application;
FIG. 2 is a schematic view of another view of the high efficiency heat exchange system of FIG. 1;
FIG. 3 is a schematic view of a heat exchanger in the high-efficiency heat exchange system shown in FIG. 2, wherein the air collecting pipe is not shown;
FIG. 4 is a schematic view of a heat exchanger in the high efficiency heat exchange system shown in FIG. 3, wherein a first oil collecting pipe and an air collecting pipe are partially cut away;
fig. 5 is a transverse cross-sectional view of a heat exchanger in the high efficiency heat exchange system shown in fig. 3.
In the figure: 100. an efficient heat exchange system; 10. a heat exchanger; 11. a plate body; 111. an oil passage; 112. an air duct; 113. an air inlet; 114. an air outlet; 12. a first oil collecting pipe; 121. a first oil separation sheet; 13. a second oil collecting pipe; 14. an oil inlet joint; 15. an oil outlet joint; 16. an air collecting pipe; 20. a centrifugal fan; 21. and a connecting cover.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of one element is referred to as being "plural," it may be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, a high efficiency heat exchange system 100 according to a preferred embodiment of the present application includes a heat exchanger 10, the heat exchanger 10 is preferably made of aluminum alloy, the heat exchanger 10 includes a plate 11, a first oil collecting pipe 12 and a second oil collecting pipe 13 respectively disposed at two ends of the plate 11, a plurality of oil channels 111 and a plurality of air channels 112 are alternately disposed in the plate 11, the first oil collecting pipe 12 and the second oil collecting pipe 13 are both communicated with the oil channels 111, an oil inlet joint 14 is disposed on the first oil collecting pipe 12, an oil outlet joint 15 is disposed on the first oil collecting pipe 12 or the second oil collecting pipe 13, an air inlet 113 and an air outlet 114 are disposed on a side surface of the plate and are communicated with the air channels 112, the air inlet 113 is disposed opposite to the oil inlet joint 14, and the oil outlet joint 15 is disposed opposite to the air outlet 114. According to the efficient heat exchange system 100, the plurality of oil channels 111 and the air channels 112 are alternately arranged in the plate body 11, and the air channels 112 are of a closed structure, namely, cooling air can only enter the air channels 112 from the air inlets 113 of the air channels 112 and then is discharged out of the plate body 11 from the air outlets 114, so that the cooling air is more concentrated, the loss of wind power and noise caused by air flow impact can be reduced, and liquid lubricating oil circulates in the adjacent oil channels 111 of the air channels 112, so that vibration caused by cooling air flow can be absorbed to a certain extent, and the noise generated in the heat exchange process is further reduced; in addition, the air inlet 113 of the air duct 112 is opposite to the oil inlet joint 14 of the oil duct 111, so that the direction of the flow of the lubricating oil in the adjacent oil duct 111 is opposite to the direction of the flow of cooling air in the air duct 112, and heat exchange is more efficient.
In one embodiment, the oil duct 111 and the air duct 112 are in a straight-through structure, i.e. cooling air is input from one end of the air duct 112 and output from the other end, lubricating oil is input from one end of the oil duct 111 and output from the other end, and the direction of cooling air flowing in the adjacent air duct 112 is opposite to that of lubricating oil flowing in the oil duct 111, the oil inlet joint 14 is communicated with the first oil collecting pipe 12, and the oil outlet joint 15 is communicated with the second oil collecting pipe 13.
In order to extend the path of the circulation of the lubricating oil as much as possible in the limited space so that the lubricating oil may be sufficiently cooled, the first oil collecting pipe 12 is internally provided with a first oil separating sheet 121, and the first oil separating sheet 121 partitions the first oil collecting pipe 12 into a plurality of independent chambers. By providing the first oil separation sheet 121, the interior of the first oil collection pipe 12 is divided into a plurality of chambers, and the flow direction of the lubricating oil in a part of the oil passage 111 is changed, so that the flow path of the lubricating oil in the plate body 11 is prolonged, and the heat exchange effect is improved.
As shown in fig. 4, in this embodiment, the number of the first oil separation sheets 121 is one, the first oil separation sheets 121 divide the interior of the first oil collecting pipe 12 into two independent chambers, and the flow directions of the lubricating oil in the oil passage 111 corresponding to the two chambers are opposite, and the two chambers are respectively communicated with the oil inlet joint 14 and the oil outlet joint 15. Through set up a first oil removal piece 121 in first oil collecting pipe 12 inside, separate into two independent cavities with first oil collecting pipe 12 inside, be a plurality of oil ducts 111 divide into two parts, and the flow direction of the lubricating oil of two part oil ducts 111 is opposite moreover to prolonged the route that lubricating oil flowed in plate 11, be favorable to lubricating oil to carry out abundant heat transfer, improved the heat transfer effect. Correspondingly, the heat exchanger 10 further comprises an air collecting pipe 16, the air collecting pipe 16 is arranged on the side face of the plate body, the air collecting pipe 16 is arranged at one end, far away from the air inlet 113, of the plate body, the air inlet 113 is communicated with one part of the air duct 112, the other part of the air duct 112 is communicated with the air outlet 114, and the air collecting pipe 16 is communicated with the two parts of the air duct 112. Through setting up the collection tuber pipe 16, correspond the different wind channel 112 of intercommunication two parts cooling air circulation direction, prolonged the route that the cooling air circulated in plate body 11 for cooling air and lubricating oil can fully carry out the heat exchange, promote the heat transfer effect.
Referring to fig. 1 to 3, in the present embodiment, the efficient heat exchange system 100 further includes a centrifugal fan 20, an air outlet end of the centrifugal fan 20 is communicated with the air inlet 113, and an air inlet end of the centrifugal fan 20 is covered with a filter (not shown). Compared with an axial flow fan, the centrifugal fan 20 has larger air pressure of generated air flow, more concentrated air flow, air supply in the air channel 112 through the centrifugal fan 20, heat exchange effect can be improved, and the inlet air is purified by arranging a filter element at the inlet end, so that the air channel 112 is prevented from being blocked by external sundries, and the service life of the heat exchanger is prolonged. Preferably, the centrifugal fan 20 is a forward-inclined centrifugal fan 20 with a volute. Further, the air outlet end of the centrifugal fan 20 is connected with a connecting cover 21, and the connecting cover 21 communicates the air outlet end of the centrifugal fan 20 with the air outlet 114. The centrifugal fan 20 can be conveniently installed by arranging the connecting cover 21, the air flow from the air outlet end of the centrifugal fan 20 can directly enter the air duct 112, the loss of the air flow is reduced, and in addition, the cooling air can be conveniently and simultaneously input into a plurality of air ducts 112.
Preferably, the air outlet 114 and the air inlet 113 are respectively disposed on two opposite sides of the plate 11. By arranging the air outlet 114 and the air inlet 113 on opposite sides of the plate 11, the air flow blown out from the air outlet 114 can be prevented from being directly sent to the air inlet 113 again, and the heat exchange effect is prevented from being affected.
Preferably, the cross section of the oil passage 111 is one of rectangular, oblong or elliptical, and the long side of the oil passage 111 is disposed on the side that meets the air duct 112. The long side of the oil duct 111 is arranged on the side surface connected with the air duct 112, so that the contact area between the air duct 112 and the oil duct 111 can be increased, and the heat exchange efficiency is improved. Of course, in other embodiments, the cross-sectional shape of the oil passage 111 may be circular or other polygonal, although the heat exchanging effect is slightly inferior to that of a rectangle, an oblong or an oval.
As shown in fig. 5, a schematic diagram of the flow of the lubricating oil and the cooling air in the plate in the efficient heat exchange system 100 according to the present embodiment is shown, wherein the solid arrows indicate the flow direction of the lubricating oil, and the dotted arrows indicate the flow direction of the cooling air. The high-temperature lubricating oil conveyed from the main engine of the oil injection screw air compressor enters one of the chambers (hereinafter referred to as an oil inlet chamber and the other chamber hereinafter referred to as an oil outlet chamber) of the first oil collecting pipe 12 through the oil inlet joint 14, enters one of the oil channels 111 (hereinafter referred to as an input oil channel 111 and the other oil channel 111 hereinafter referred to as an output oil channel 111) from the oil inlet chamber, flows through the input oil channel 111 and enters the second oil collecting pipe 13, the second oil collecting pipe 13 serves as a channel for connecting the input oil channel 111 and the output oil channel 111, the lubricating oil in the second oil collecting pipe 13 is converted into the output oil channel 111 in the flowing direction, and is conveyed into the oil outlet chamber in the first oil collecting pipe 12 through the output oil channel 111, and finally is conveyed into the main engine of the air compressor through a pipeline through the oil outlet joint 15. Meanwhile, the cooling air flow generated by the centrifugal fan 20 enters a part of air channels 112 (hereinafter referred to as an input air channel 112 and another part of air channels 112 are hereinafter referred to as output air channels 112) in the plate body through the connecting cover 21, the input air channels 112 and the input air channels 111 are arranged at intervals, the flowing direction of the cooling air flow in the input air channels 112 is opposite to the flowing direction of lubricating oil in the input air channels 111, the cooling air flow enters the air collecting pipe 16 through the input air channels 112 to finish the conversion of the air flow direction and then is output into the output air channels 112, the output air channels 112 and the output air channels 111 are arranged at intervals, the flowing direction of the cooling air in the output air channels 112 is opposite to the flowing direction of the lubricating oil in the output air channels 111, and finally, the cooling air flow leaves the plate body 11 through the air outlet 114.
In other embodiments, when the number of the first oil separation sheets 121 is two or more, the second oil separation sheets (not shown) are disposed inside the second oil collection tube 13, the second oil separation sheets divide the interior of the second oil collection tube 13 into a plurality of independent oil collection chambers, the two ends of the side surface of the plate body 11 are respectively provided with an air collection tube 16, the air collection tube 16 is communicated with the air duct 112, and a wind shield is disposed in the air collection tube 16, and the wind shield divides the interior of the air collection tube 16 into a plurality of independent air collection chambers. When the number of the first oil separation sheets 121 is two or more, the second oil separation sheets are correspondingly arranged in the second oil collecting pipe 13, which is favorable for prolonging the circulation path of lubricating oil in the plate body, and in order to ensure that cooling air and lubricating oil can fully exchange heat, the air collecting pipes 16 are arranged at two ends of the side face of the plate body 11, and the wind shielding sheets are arranged in the air collecting pipes 16, so that the circulation path of the cooling air in the plate body 11 is consistent with the circulation path length of the lubricating oil, and the heat exchange effect is ensured. Further, whether the oil outlet joint 15 is provided in the first oil collecting pipe 12 or the second oil collecting pipe 13 may be adjusted according to the path of the oil passage 111, and it is not limited that the oil outlet joint 15 is provided in the first oil collecting pipe 12 or the second oil collecting pipe 13.
The application also provides an application example of the efficient heat exchange system 100, namely an oil injection screw air compressor, wherein the oil injection screw air compressor comprises a host (not shown), an oil-gas separation tank (not shown) and the efficient heat exchange system 100, an oil delivery port of the host is communicated with an oil outlet joint 15 through a pipeline, an exhaust port of the host is communicated with an input port of the oil-gas separation tank, and an oil discharge port of the oil-gas separation tank is communicated with an oil inlet joint 14 through a pipeline. The oil injection screw air compressor with the high-efficiency heat exchange system 100 has the advantages of high heat exchange efficiency and low noise.
According to the application, through optimizing the structural design of the original aluminum fin type heat exchanger 10, the open air duct 112 is optimized to be the semi-closed air duct 112 with openings at two ends, so that the circulation time of cooling air in the heat exchanger and the contact area with the heat exchanger 10 are prolonged as much as possible in a limited space, the heat exchange efficiency is improved, and in addition, the circulation direction of the cooling air in the heat exchanger 10 is opposite to the circulation direction of lubricating oil, and the heat exchange is more efficient. Compared with the traditional open air duct, when cooling air flows through the heat exchanger 10, the cooling air does not need to be cut with fins to generate vibration, and the air noise is reduced. In addition, the heat exchange system adopts the semi-closed air duct 112, reduces the contact area of the air duct and the outside, and does not greatly influence the heat exchange effect even if dust accumulation occurs on the surface of the cooler 10.
The forward-inclined centrifugal fan 20 with the volute is adopted as a cooling air generation source, the air outlet 114 of the centrifugal fan 20 is directly arranged at the air inlet 113 of the optimally designed heat exchanger 10, the air guide cover of the original axial flow fan is omitted, the installation space is saved, the cost is reduced, and the size of the centrifugal fan 20 adopted with high heat exchange efficiency can be reduced, so that the machine cost is further reduced; meanwhile, the wind scooper is omitted, so that the installation time is shortened, and the production cost is reduced. The air inlet end of the centrifugal fan 20 is covered with a filter element to purify the air entering the air duct 112, so that the air duct 112 is prevented from being blocked by external sundries, the heat exchange effect is ensured, and the service life of the heat exchanger 10 is prolonged.
In addition, the heat exchange system can reduce the noise generated by the operation of the host and the fan in the machine, and the air outlet is greatly reduced compared with the fully-opened air duct because the air duct 112 is of a semi-closed structure, so that the noise escaping from the plate 11 through the air duct 112 can be greatly reduced.
Finally, it should be noted that the foregoing description is only a preferred embodiment of the present application, and the present application is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a high-efficient heat transfer system (100), includes heat exchanger (10), its characterized in that, heat exchanger (10) include plate body (11), and set up first collection oil pipe (12) and second collection oil pipe (13) at plate body (11) both ends respectively, inside interval of plate body (11) is provided with a plurality of oil ducts (111) and a plurality of wind channel (112) in turn, first collection oil pipe (12) and second collection oil pipe (13) all communicate with oil duct (111), be provided with oil feed joint (14) on first collection oil pipe (12), be provided with oil outlet joint (15) on first collection oil pipe (12) or second collection oil pipe (13), the plate body side is equipped with air intake (113) and air outlet (114) with wind channel (112) intercommunication, air intake (113) set up with oil feed joint (14) relatively, oil outlet joint (15) set up with air outlet (114) relatively.
2. The efficient heat exchange system (100) of claim 1, wherein the first oil collecting pipe (12) is internally provided with a first oil separation sheet (121), and the first oil separation sheet (121) partitions the first oil collecting pipe (12) into a plurality of independent chambers.
3. The efficient heat exchange system (100) according to claim 2, wherein the number of the first oil separation sheets (121) is one, the first oil separation sheets (121) divide the interior of the first oil collecting pipe (12) into two independent chambers, the flow directions of lubricating oil in the oil channels (111) corresponding to the two chambers are opposite, and the two chambers are respectively communicated with the oil inlet joint (14) and the oil outlet joint (15).
4. A high efficiency heat exchange system (100) according to claim 3, wherein the heat exchanger (10) further comprises a wind collecting pipe (16), the wind collecting pipe (16) is arranged on the side surface of the plate body, the wind collecting pipe (16) is arranged at one end of the plate body far away from the wind inlet (113), the wind inlet (113) is communicated with one part of the wind channel (112), the other part of the wind channel (112) is communicated with the wind outlet (114), and the wind collecting pipe (16) is communicated with two parts of the wind channels (112).
5. The efficient heat exchange system (100) according to claim 2, wherein when the number of the first oil separation sheets (121) is two or more, the second oil separation sheets are arranged inside the second oil collection tube (13), the second oil separation sheets divide the interior of the second oil collection tube (13) into a plurality of independent oil collection chambers, the two ends of the side surface of the plate body (11) are respectively provided with an air collection tube (16), the air collection tube (16) is communicated with the air duct (112), and a wind shielding sheet is arranged in the air collection tube (16) and divides the interior of the air collection tube (16) into a plurality of independent air collection chambers.
6. The efficient heat exchange system (100) of claim 1, further comprising a centrifugal fan (20), wherein an air outlet end of the centrifugal fan (20) is in communication with the air inlet (113), and an air inlet end of the centrifugal fan is covered with a filter.
7. The efficient heat exchange system (100) of claim 6, wherein the air outlet end of the centrifugal fan (20) is connected with a connecting cover (21), and the connecting cover (21) communicates the air outlet end of the centrifugal fan (20) with the air outlet (114).
8. The efficient heat exchange system (100) of claim 7, wherein the air outlet (114) and the air inlet (113) are respectively disposed on opposite sides of the plate body (11).
9. The efficient heat exchange system (100) of claim 1, wherein the oil passage (111) has a cross-section of one of rectangular, oblong, or elliptical, and the long side of the oil passage (111) is disposed on a side that interfaces with the air passage (112).
10. An oil injection screw air compressor, characterized by, including host computer, oil-gas separation jar and high-efficient heat transfer system (100) of any one of claims 1 to 9, the defeated oil port and the play oil joint (15) intercommunication of host computer, the gas vent of host computer communicates with the input port of oil-gas separation jar, the oil drain port and the oil feed joint (14) intercommunication of oil-gas separation jar.
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| CN202311136779.5A CN116929115B (en) | 2023-09-05 | 2023-09-05 | Efficient heat exchange system and oil injection screw air compressor |
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| CN116929115B CN116929115B (en) | 2024-03-19 |
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| JPS58148390A (en) * | 1982-03-01 | 1983-09-03 | Fuji Heavy Ind Ltd | Manufacture of heat exchanger |
| CN203165622U (en) * | 2013-03-29 | 2013-08-28 | 中国西电电气股份有限公司 | Finned radiator for soaking type transformer cooling |
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| JP2016044936A (en) * | 2014-08-26 | 2016-04-04 | 日軽熱交株式会社 | Parallel flow type heat exchanger |
| CN105658454A (en) * | 2013-10-23 | 2016-06-08 | 摩丁制造公司 | Heat exchanger and side plate |
| CN206225128U (en) * | 2016-10-24 | 2017-06-06 | 门科电力设备(昆山)有限公司 | A kind of oil-filled transformer cooling radiator |
| CN116136376A (en) * | 2021-11-17 | 2023-05-19 | 华为技术有限公司 | Heat exchanger, vehicle-mounted heat management system and electric automobile |
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2023
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148390A (en) * | 1982-03-01 | 1983-09-03 | Fuji Heavy Ind Ltd | Manufacture of heat exchanger |
| CN203165622U (en) * | 2013-03-29 | 2013-08-28 | 中国西电电气股份有限公司 | Finned radiator for soaking type transformer cooling |
| CN105658454A (en) * | 2013-10-23 | 2016-06-08 | 摩丁制造公司 | Heat exchanger and side plate |
| JP2016044936A (en) * | 2014-08-26 | 2016-04-04 | 日軽熱交株式会社 | Parallel flow type heat exchanger |
| CN204497012U (en) * | 2015-02-15 | 2015-07-22 | 王天林 | A kind of transformer perpendicular type panel radiator |
| CN204632512U (en) * | 2015-05-26 | 2015-09-09 | 莱芜市昊晟电力设备有限公司 | A kind of fin type heat radiator for transformer |
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| CN116136376A (en) * | 2021-11-17 | 2023-05-19 | 华为技术有限公司 | Heat exchanger, vehicle-mounted heat management system and electric automobile |
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| CN116929115B (en) | 2024-03-19 |
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