WO2016106469A1 - Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe - Google Patents

Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe Download PDF

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Publication number
WO2016106469A1
WO2016106469A1 PCT/CN2014/001186 CN2014001186W WO2016106469A1 WO 2016106469 A1 WO2016106469 A1 WO 2016106469A1 CN 2014001186 W CN2014001186 W CN 2014001186W WO 2016106469 A1 WO2016106469 A1 WO 2016106469A1
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WO
WIPO (PCT)
Prior art keywords
compressor
volute
direct
cooling fan
cooling
Prior art date
Application number
PCT/CN2014/001186
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English (en)
Chinese (zh)
Inventor
陈君立
阮勤江
耿爱农
Original Assignee
浙江鸿友压缩机制造有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 浙江鸿友压缩机制造有限公司 filed Critical 浙江鸿友压缩机制造有限公司
Priority to PCT/CN2014/001186 priority Critical patent/WO2016106469A1/fr
Publication of WO2016106469A1 publication Critical patent/WO2016106469A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing

Definitions

  • the invention belongs to the technical field of compressors, and relates to a cooling system of a compressor, in particular to a cooling layout structure of an oil-free compressor, and more particularly to a cooling layout structure of a direct-connected oil-free compressor.
  • the existing oil-free compressor is equipped with a cooling system based on a cooling fan without exception, thereby dissipating the compression heat of the compressor, the frictional heat and the heat generated by the motor, thereby achieving Reduce the heat load of the compressor to ensure the reliability of the compressor.
  • compression heat and friction heat are the main heat sources of the compressor, mainly concentrated at the cylinder head; while the direct-coupled motors that drive the compressors run, the heat generated is mostly concentrated at the stator and the rotor.
  • the cooling system layout of the current direct-connected oil-free compressor has two forms: 1) The cooling fan is arranged at the tailstock of the motor and driven by the motor shaft, and the cooling air generated by the cooling air first cools the motor. Then, under the guidance of the shroud casing, the cylinder head of the compressor is blown and cooled; 2) the cooling fan is arranged in the crankcase of the compressor and driven by the crank or the crankshaft, and the cooling air generated by the cooling fan is directly blown toward The cylinder liner, piston, connecting rod and other components are then led to the cylinder head of the compressor and the cylinder head is cooled.
  • the cooling layout scheme of the above-mentioned conventional direct-connected oil-free compressor has the advantages of compact structure, but its disadvantages are also obvious: in the first scheme, the cooling fan is arranged at the tailstock of the motor, due to the cylinder of the distance compressor The head is far away, so the cooling effect on the cylinder head of the compressor is poor. In the second scheme, although the fan is closer to the main heat source of the cylinder head, the cooling air is restrained and blocked by the cylinder and the crankcase, causing the blowing direction. The airflow in the cylinder head often presents a cooling dead zone, which affects the heat dissipation effect of the compressor.
  • the present invention provides a cooling layout structure of a direct-coupled oil-free compressor, which aims to effectively cool the cylinder head of the compressor, thereby reducing the heat of the compressor. load.
  • the present invention provides a cooling layout structure of a direct-coupled oil-free compressor, including a cooling fan, a cylinder, and a cylinder head, and is provided with a volute and a shroud, the volute and the fan of the cooling fan
  • the cooling fan is coupled to the compressor motor shaft
  • the shroud is disposed at a side of the compressor
  • the air passage of the shroud and the exhaust runner of the volute are butted against each other
  • the shroud is at least
  • An air passage is provided to the cylinder head of the compressor; part or all of the airflow generated by the cooling fan is guided by the volute and the shroud to the cylinder head of the compressor, and is swept by the flow across the cylinder head The outer surface of the cylinder head.
  • the cooling fan is a centrifugal fan structure, and the cooling fan and the volute are arranged next to the compressor crankcase.
  • the cylinder head is provided with a directional rib structure in a layout direction that is consistent with the flow direction of the air flowing over the outer surface of the cylinder head.
  • the cylinder is provided with a forward rib structure in which the layout direction is consistent with the flow direction of the airflow passing over the outer surface of the cylinder.
  • the cooling fan of the compressor adopts a front end axial air intake mode, and an axial air inlet is provided at a central portion of the front end of the volute, and the axial air inlet introduces the outside air into a central low pressure region of the cooling fan.
  • the cooling fan of the above compressor adopts an axial air intake mode from a radial inlet of one side of the crankcase to a central portion of the rear end of the volute, and is opened on one side or both sides of the motor casing or/and the crankcase. There is a radial air inlet opening that directs the outside atmosphere into the central low pressure region of the cooling fan.
  • the cooling fan of the above compressor adopts the rear end of the volute from the radial intake of one side of the crankcase and then the central portion of the rear end of the volute.
  • the axial intake and the central portion of the front end of the volute are axially assisted.
  • an axial air inlet is provided in the central portion of the volute, and at the same time in the motor casing or/and
  • a radial air inlet hole is defined in one side or both sides of the crankcase, and the axial air inlet and the radial air inlet hole can introduce the outside atmosphere into the central low pressure region of the cooling fan.
  • the centrifugally pressurized airflow is guided to the shroud through the volute air outlet, and then enters through the side of the compressor cylinder head in the axial direction of the motor, and is discharged to the other side of the compressor cylinder cover, and at the same time, a part of the centrifugal increase
  • the compressed airflow is guided to the shroud through the volute air outlet, it enters from the cylinder cooling hole of one side of the crankcase, flows through the outer surface of the cylinder and is discharged from the cooling hole of the other cylinder.
  • At least one intake passage is connected to the direct-coupled motor of the compressor via a direct-coupled motor to the intake port of the cooling fan or an exhaust passage of the shroud, and is cooled by a portion of the airflow generated by the guide cooling fan Directly connected motor.
  • the above cooling fan, cylinder, cylinder head, volute and shroud can be arranged in multiple groups at the same time and share a direct-coupled motor.
  • the cooling layout structure of the direct-coupled oil-free compressor of the present invention is that the airflow generated by the centrifugal cooling fan is guided to the main heat dissipating cylinder head and the cylinder of the compressor by using a volute and a shroud structure, and The cooling wind crosses the layout of the cylinder head, whereby the compressor can be effectively cooled, thereby reducing the heat load of the compressor.
  • FIG. 1 is a perspective sectional view showing a cooling arrangement of a direct-connected oil-free compressor of the present invention using a side-side radial air intake scheme
  • Figure 2 is a schematic view showing the gas flow path of the cooling layout configuration of the direct-connected oil-free compressor of the present invention shown in Figure 1;
  • FIG. 3 is a schematic view showing the axial measurement of a front-end axial air intake scheme of a direct-connected oil-free compressor cooling layout structure according to the present invention
  • Figure 4 is a perspective view showing another direction of the cooling layout configuration of the direct-connected oil-free compressor of the present invention shown in Figure 3;
  • Figure 5 is a longitudinal sectional view showing a cooling layout configuration of a direct-connected oil-free compressor of the present invention shown in Figure 3;
  • Figure 6 is a cross-sectional view showing a cooling layout configuration of a direct-connected oil-free compressor of the present invention shown in Figure 3;
  • FIG. 7 is a schematic view showing the axial layout of a direct-connected oil-free compressor cooling layout structure using both front-end axial intake and side-side radial intake;
  • FIG. 8 is a schematic view showing the axial flow of a gas flow path of a front-end axial air intake scheme of a direct-connected oil-free compressor cooling layout structure according to the present invention
  • FIG. 9 is a second axial view of a gas flow path of a front-end axial air intake scheme embodiment of a direct-connected oil-free compressor cooling layout structure according to the present invention.
  • Figure 10 is a schematic diagram of a direct-connected oil-free compressor cooling layout structure of the present invention using a compressor cooling fan while using a volute rear end from a side of the crankcase and then to the center of the volute Schematic diagram of the axially auxiliary intake two intake schemes of the central portion of the intake and volute front ends.
  • FIG. 11 is a cooling arrangement of a direct-connected oil-free compressor according to the present invention, which uses a cooling fan of a compressor and simultaneously adopts a volute rear end from a side of the crankcase to the central portion of the rear end of the volute.
  • a cooling layout structure of a direct-connected oil-free compressor includes a cooling fan 11, a cylinder 2 and a cylinder head 3.
  • the compressor of the present invention is directly connected to the motor 4, wherein the motor 4 is composed of a rotor 4a and a stator 4b, and a motor 4, the rotating shaft 5 is fastened to the crank 6 of the compressor or the rotating shaft 5 is integrally formed with the crank 6 of the compressor (as shown in FIG.
  • the motor 4 directly drives the connecting rod 7 and the piston 8 of the compressor to operate;
  • the number of the cylinders 2 of the present invention may be one or two, and correspondingly there are also the connecting rods 7 and the pistons 8 corresponding to the number, and when the type of the double cylinders 2 is adopted, an optimal layout is adopted.
  • the two cylinders 2 are placed at the two axial ends of the motor 4 (as shown in FIG. 5); in order to obtain a better cooling effect, the present invention is characterized in that a volute 9 and a shroud 10 are provided.
  • the volute 9 is disposed in response to the fan blade of the cooling fan 11 of the compressor (see FIG. 1, FIG. 2, FIG. 5 and FIG.
  • the volute 9 is contained or the semi-contained cooling fan 11 is disposed, on the other hand
  • the airflow generated by the cooling fan 11 is mainly guided by the volute 9, and the shroud 10 can receive cold guide
  • the body portion is disposed further from the motor 4 than the main body portion of the crankcase 12 but in close proximity to the crankcase 12, and further includes a side portion of the crankcase 12 disposed adjacent to the compressor, that is, disposed adjacent to the crankcase 12 but
  • the main body portion of the shroud 10 is closer to the rotation axis of the rotating shaft 5 than the main portion of the crankcase 12 in the direction of the radius of gyration of the rotating shaft 5 or the crank 6, as shown in Figs.
  • the shroud 10 is guided to the cylinder head 3 of the compressor and swept across the outer surface of the cylinder head 3 in a manner of flowing across the cylinder head 3;
  • the volute 9 and the shroud 10 of the present invention may Made for one-piece construction, or they can be individually made and then fastened Together, further, the crankcase 12 can even participate / or constitute a part of the volute 9 and shroud 10; in addition
  • the airflow referred to in the present invention sweeps across the outer surface of the cylinder head 3 in a manner of flowing across the cylinder head 3, meaning that the airflow is from one or several edges of the cylinder head 3 (including straight edges, folds Edges, arc edges)
  • the cooling fan 11 can be constructed with a centrifugal fan, in which case the cooling fan 11 and the volute 9 are arranged next to the compressor crankcase 12, and the optimal layout scheme is to cool the fan 11 and the volute 9
  • the main body portion of the volute 9 is disposed sideways of the front end portion of the crankcase 12 of the compressor, that is, in the axial direction of the rotating shaft 5, and is disposed farther from the motor 4 than the main portion of the crankcase 12 but is disposed adjacent to the crankcase 12 ( As shown in Figure 5).
  • the cylinder head 3 is provided with a configuration of a forward rib 13 which is aligned with the flow direction of the airflow passing over the outer surface of the cylinder head 3 (see, for example, 2).
  • the strip-shaped ridge portion of the rib 13 has a strip-like direction which is substantially consistent with the flow direction of the airflow (the optimal layout is arranged in parallel with the flow direction of the airflow), so that the gas flow resistance can be greatly reduced, thereby enhancing the heat exchange effect.
  • the cylinder 2 may be provided with a rib structure (not shown) in which the layout direction is consistent with the flow direction of the air flowing over the outer surface of the cylinder 2, the so-called forward direction is
  • the strip-shaped ridges of the ribs have a strip-like trend that is substantially consistent with the flow direction of the airflow (the optimal layout is arranged parallel to the flow direction of the airflow), which can greatly reduce the gas flow resistance, thereby enhancing the heat exchange effect.
  • the cooling fan of the compressor of the present invention may adopt a front end axial air intake mode, in which the air outlet 9b of the volute 9 is located at the lower right side of the volute 9 (see Figs. 8 and 9), that is, The central portion of the front end of the volute 9 is provided with an axial air inlet 14 (see FIGS. 3 to 5, 8, and 9) that introduces the outside air into the central low pressure region of the cooling fan 11. Then, one airflow E of the airflow C flowing in the exhaust flow path formed by the shroud 10 is traversed to the other side of the compressor cylinder head 3 through one side of the compressor cylinder head 3, and the other airflow K passes through the crankcase. One side of the heat dissipation vent 16 of the 12 is circulated to the other side of the crankcase 12 to be discharged.
  • the cooling fan of the compressor of the present invention may also adopt a side-side radial intake mode, that is, an axial intake mode of the central portion of the rear end of the volute 9 from the radial intake of the crankcase 12 to the rear end of the volute 9
  • Radial intake holes 15 are provided on one or both sides of the motor casing or/and the crankcase 12, and the radial intake holes 15 introduce the outside atmosphere into the cooling fan 11.
  • the central low pressure zone it should be noted that the optimum flow path from the radial air inlet 15 is through the partition 16a supporting the main bearing 16, and then guided into the central low pressure zone of the cooling fan 11, centrifugally pressurized The subsequent airflow is guided to the shroud 10 through the air outlet of the volute 9, and then discharged to the other side of the compressor cylinder head 3 through the side of the compressor cylinder head 3.
  • the cooling fan of the compressor of the present invention can also adopt both the front axial suction and the side radial intake (in Figure 1, Figure 2, Figure 6, Figure 7, Figure 10, Figure 11). That is, the rear end of the volute 9 is radially inflated from one side of the crankcase 12 and then turned to the central portion of the rear end of the volute 9; the axial intake and the central portion of the front end of the volute 9 are axially assisted.
  • Intake mode in the case of the intake mode: the air outlet 9c of the volute 9 is located on the upper side of the volute 9 (see Fig.
  • an axial intake port 14 is provided in the central portion of the volute 9, and at the same time in the motor Radial intake is provided on one or both sides of the casing or/and the crankcase 12.
  • the hole 15, the axial air inlet 14 and the radial air inlet 15 can introduce the outside atmosphere into the central low pressure region of the cooling fan 11, and the centrifugally pressurized air flow is guided to the airflow guide 10 through the air outlet of the volute 9. Then, it enters through the side of the compressor cylinder head 3 in the axial direction of the motor, and is discharged to the other side of the compressor cylinder head 3, and at the same time, a part of the centrifugally pressurized airflow is guided to the diversion through the air outlet of the volute 9. After the cover 10, it enters from the cylinder heat dissipation hole 18 of the crankcase, flows through the outer surface of the cylinder, and is discharged from the other cylinder heat dissipation hole 19.
  • At least one intake passage passes through the direct connection motor to the intake port of the cooling fan or an exhaust passage of the shroud 10 to the direct-coupled motor 4 of the compressor, and passes through A part of the air flow generated by the guide cooling fan 11 is blown to cool the direct-coupled motor 4 (not shown).
  • the cooling layout structure of the direct-coupled oil-free compressor of the present invention is directed to the main heat dissipating member cylinder head 3 and the cylinder 2 of the compressor by using the volute casing 9 and the shroud 10 structure to construct the airflow generated by the centrifugal cooling fan 11 At the same time, the layout structure in which the cooling air crosses the cylinder head 3 is adopted, whereby the compressor can be effectively cooled, thereby reducing the heat load of the compressor.
  • the cooling layout structure of the direct-connected oil-free compressor of the present invention, the cooling fan 11, the cylinder 2, the cylinder head 3, the volute 9 and the shroud 10 can be arranged in multiple groups at the same time and share a direct-coupled motor 4 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une structure d'agencement de refroidissement pour un compresseur sans huile du type à liaison directe comprenant un ventilateur de refroidissement (11), un cylindre à air (2), une culasse (3), une volute (9) et un déflecteur d'air (10). La volute (9) est agencée de manière à correspondre à des pales du ventilateur de refroidissement (11). Le déflecteur d'air (10) est agencé à côté du compresseur. Un canal d'air du déflecteur d'air (10) est relié à un canal d'écoulement de la volute (9) dans un mode contigu. Le déflecteur d'air (10) est doté d'au moins un canal d'air menant à la culasse (3) du compresseur. Une partie ou la totalité de l'écoulement d'air généré par le ventilateur de refroidissement (11) est guidée vers la culasse (3) du compresseur par la volute (9) et le déflecteur d'air (10) et balaie la surface externe de la culasse (3) de manière à s'écouler sur l'ensemble de la culasse (3). La structure d'agencement de refroidissement permet de refroidir efficacement le compresseur, et la charge thermique du compresseur est par conséquent réduite.
PCT/CN2014/001186 2014-12-29 2014-12-29 Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe WO2016106469A1 (fr)

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PCT/CN2014/001186 WO2016106469A1 (fr) 2014-12-29 2014-12-29 Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe

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Application Number Priority Date Filing Date Title
PCT/CN2014/001186 WO2016106469A1 (fr) 2014-12-29 2014-12-29 Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108412737A (zh) * 2018-05-10 2018-08-17 厦门闳图盛道科技有限公司 一种自带散热风扇的无油空压机
CN110242534A (zh) * 2019-07-08 2019-09-17 耐力股份有限公司 一种新能源有油二级活塞式空压机
IT201800003733A1 (it) * 2018-03-19 2019-09-19 Fiac S R L Compressore d’aria alternativo bicilindrico
US20190368502A1 (en) * 2018-05-31 2019-12-05 Abb Schweiz Ag System having machine and fan
CN113653564A (zh) * 2021-09-17 2021-11-16 浙江派尼尔科技股份有限公司 一种单缸风冷柴油机

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US4065233A (en) * 1974-07-16 1977-12-27 Matsushita Electric Industrial Co., Ltd. Electric blower assembly having volute passages to direct air into motor housing
US4773829A (en) * 1986-09-10 1988-09-27 Etudes Techniques Et Representations Industrielles E.T.R.I. Centrifugal fan driven by an electronic-commutation direct-current motor
CN1402815A (zh) * 1999-11-29 2003-03-12 托马斯工业股份有限公司 泵壳
CN2644702Y (zh) * 2003-09-26 2004-09-29 河北科技大学 一种大功率风冷全无油压缩机
CN2799896Y (zh) * 2005-04-01 2006-07-26 吕军 有轴流风机的全无油空压机
CN202483839U (zh) * 2011-12-28 2012-10-10 浙江鸿友压缩机制造有限公司 带顶置风扇的斜盘式往复活塞压缩机
CN103994053A (zh) * 2014-04-16 2014-08-20 浙江鸿友压缩机制造有限公司 一种直联式无油压缩机的冷却布局构造
CN203796526U (zh) * 2014-04-16 2014-08-27 浙江鸿友压缩机制造有限公司 一种直联式无油压缩机的冷却布局构造

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065233A (en) * 1974-07-16 1977-12-27 Matsushita Electric Industrial Co., Ltd. Electric blower assembly having volute passages to direct air into motor housing
US4773829A (en) * 1986-09-10 1988-09-27 Etudes Techniques Et Representations Industrielles E.T.R.I. Centrifugal fan driven by an electronic-commutation direct-current motor
CN1402815A (zh) * 1999-11-29 2003-03-12 托马斯工业股份有限公司 泵壳
CN2644702Y (zh) * 2003-09-26 2004-09-29 河北科技大学 一种大功率风冷全无油压缩机
CN2799896Y (zh) * 2005-04-01 2006-07-26 吕军 有轴流风机的全无油空压机
CN202483839U (zh) * 2011-12-28 2012-10-10 浙江鸿友压缩机制造有限公司 带顶置风扇的斜盘式往复活塞压缩机
CN103994053A (zh) * 2014-04-16 2014-08-20 浙江鸿友压缩机制造有限公司 一种直联式无油压缩机的冷却布局构造
CN203796526U (zh) * 2014-04-16 2014-08-27 浙江鸿友压缩机制造有限公司 一种直联式无油压缩机的冷却布局构造

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800003733A1 (it) * 2018-03-19 2019-09-19 Fiac S R L Compressore d’aria alternativo bicilindrico
EP3543528A1 (fr) * 2018-03-19 2019-09-25 Fiac S.P.A. Compresseur d'air alternatif à deux cylindres
CN108412737A (zh) * 2018-05-10 2018-08-17 厦门闳图盛道科技有限公司 一种自带散热风扇的无油空压机
US20190368502A1 (en) * 2018-05-31 2019-12-05 Abb Schweiz Ag System having machine and fan
US10859091B2 (en) * 2018-05-31 2020-12-08 Abb Schweiz Ag System having machine and fan with an axial flow inducer
CN110242534A (zh) * 2019-07-08 2019-09-17 耐力股份有限公司 一种新能源有油二级活塞式空压机
CN110242534B (zh) * 2019-07-08 2024-01-26 耐力股份有限公司 一种新能源有油二级活塞式空压机
CN113653564A (zh) * 2021-09-17 2021-11-16 浙江派尼尔科技股份有限公司 一种单缸风冷柴油机

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