CN106523360A - 一种可快速卸压的涡旋压缩机 - Google Patents

一种可快速卸压的涡旋压缩机 Download PDF

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CN106523360A
CN106523360A CN201611150248.1A CN201611150248A CN106523360A CN 106523360 A CN106523360 A CN 106523360A CN 201611150248 A CN201611150248 A CN 201611150248A CN 106523360 A CN106523360 A CN 106523360A
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screw compressor
pressure
support
orbiting scroll
movable orbiting
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CN106523360B (zh
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梁东
田青
扈志伟
曹彪
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Ningbo Hui Feng Wai Polytron Technologies Inc
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Ningbo Hui Feng Wai Polytron Technologies Inc
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0269Details concerning the involute wraps
    • F04C18/0292Ports or channels located in the wrap
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021Systems for the equilibration of forces acting on the pump

Abstract

本发明公开了一种可快速卸压的涡旋压缩机,支架(4)端面开设有回气槽(4a),静涡盘(1)开设有回气孔(1a),耐磨垫片(3)设置在支架(4)与动涡盘(2)之间,并与支架(4)端面抵接,从而使回气槽(4a)形成密封通道;所述耐磨垫片(3)上设有通气孔(3a)和卸压孔(3b),回气孔(1a)一端经通气孔(3a)与回气槽(4a)相通,另一端与涡旋压缩机高压腔室相通,所述回气槽(4a)通过卸压孔(3b)与涡旋压缩机低压腔室相通。所述涡旋压缩机停机时,动涡盘(2)远离耐磨垫片(3),卸压孔(3b)开启,高压腔室与低压腔室连通,系统压差平衡。本发明解决了涡旋压缩机停机立刻再启动,因扭矩过大导致启动失败的问题,可以使整个系统压力平衡的时间缩短为原来的10%左右。

Description

一种可快速卸压的涡旋压缩机
技术领域
[0001] 本发明属于涡旋压缩机领域,具体涉及一种可快速卸压的涡旋压缩机。背景技术
[0002] 涡旋压缩机是由两个双函数方程型线的动、静涡旋相互啮合而成。在吸气、压缩、 排气工作过程中,静涡盘固定在机架上,动涡盘由曲轴驱动并由防自转机构制约,围绕静涡盘基圆中心做很小半径的平面转动,气体吸入静涡盘的外围,随着偏心轴的旋转,气体在动静盘啮合合所组成的若干个月牙形压缩腔内被逐步压缩,然后由静涡盘中心部件的排气孔连续排出。
[0002] 涡旋压缩机工作时,使系统节流阀一侧形成低压,另一侧形成高压。当涡旋压缩机停机后,高压管路中的气体一部分通过压缩机的内泄漏流向低压管路,另一部分则通过节流阀流向低压管路,最终系统管路压力达到平衡。系统压力达到平衡大约需要几分钟时间, 如涡旋压缩机停机后立刻启动,涡旋压缩机将带载启动。此时涡旋压缩机的启动扭矩可能大于动力系统提供的扭矩,导致启动失败。发明内容
[0003] 鉴于上述原因,本发明旨在提供一种可快速卸压的涡旋压缩机。
[0004] 为了实现上述目的,本发明采用以下技术方案:
[0005] —种可快速卸压的涡旋压缩机,包括壳体10、静涡盘1、动涡盘2及支架4,所述静涡盘1及支架4固定在所述壳体10上,所述动祸盘2通过传动机构与支架4连接;所述支架4端面开设有回气槽4a,所述静涡盘1开设有回气孔la;所述涡旋压缩机还包括耐磨垫片3,所述耐磨垫片3设置在支架4与动涡盘2之间,并与支架4端面抵接,从而使所述回气槽4a形成密封通道;所述耐磨垫片3上设有通气孔3a和卸压孔3b,所述回气孔la—端经所述通气孔3a与所述回气槽4a相通,另一端与涡旋压缩机高压腔室相通,所述回气槽4a通过所述卸压孔3b与涡旋压缩机低压腔室相通。
[0006] 优选的,所述涡旋压缩机工作时,所述动涡盘2紧靠所述耐磨垫片3,使所述卸压孔 3b闭合;所述涡旋压缩机停机时,所述动涡盘2远离所述耐磨垫片3,所述卸压孔3b开启,高压腔室与低压腔室连通,系统压差平衡。
[0007] 优选的,所述传动机构包括支架轴承5、主轴6、轴套7和动涡盘轴承8,所述主轴6通过所述支架轴承5与所述支架4转动连接,所述轴套7套设在所述主轴6上,所述动涡盘2通过所述动涡盘轴承8与所述主轴6连接。
[0008] 本发明的有益效果是:采用耐磨垫片上的通气孔和卸压孔连通涡旋压缩机高压腔室和低压腔室,并通过动涡盘与耐磨垫片的远离和紧靠控制卸压孔开闭,实现了涡旋压缩机停机时的快速卸压,解决了涡旋压缩机停机立刻再启动,因扭矩过大导致启动失败的问题,可以使整个系统压力平衡的时间缩短为原来的10%左右,具有结构简单巧妙、稳定性强、可靠性尚的特点。附图说明
[0009]图1是本发明涡旋压缩机局部示意图;[〇〇1〇]图2是本发明耐磨垫片结构示意图。
[0011] 附图标记说明:静涡盘1、回气孔la、排气口 lb、动涡盘2、耐磨垫片3、通气孔3a、卸压孔3b、支架4、回气槽4a、支架轴承5、主轴6、轴套7、动涡盘轴承8、防自转机构9、壳体10、单向阀11。具体实施方式
[0012] 以下结合附图和具体实施方式对本发明做进一步的描述,但是本实施方式并不限定于以下的内容,在无损本发明的主旨的范围内可任意地进行变更并实施。
[0013] 如图1所示,涡旋压缩机壳体10内从左至右依次设置有支架4、动涡盘2及静涡盘1, 所述支架4及静涡盘1固定设置在壳体10内壁,所述动涡盘2通过传动机构与支架4连接;所述动涡盘2左侧为吸气腔,所述静涡盘1右侧为排气腔,所述吸气腔为涡旋压缩机的低压腔室,所述排气腔为涡旋压缩机的高压腔室。
[0014] 所述静涡盘1开设有回气孔la和排气口 lb,所述回气孔la右端与排气腔连通,所述排气口 lb通过静涡盘1上的单向阀11将静涡盘1与动涡盘2啮合压缩的高压气体排向排气腔;[〇〇15] 所述支架4端面开设有回气槽4a,所述涡旋压缩机还包括耐磨垫片3,所述耐磨垫片3设置在支架4与动涡盘2之间,并与支架4端面抵接,从而使所述回气槽4a形成密封通道。 所述耐磨垫片3上设有通气孔3a和卸压孔3b,所述回气孔la左端经所述通气孔3a与所述回气槽4a相通,所述回气槽4a通过所述卸压孔3b与吸气腔相通。
[0016] 所述传动机构包括支架轴承5、主轴6、轴套7和动涡盘轴承8,所述主轴6通过所述支架轴承5与所述支架4转动连接,所述轴套7套设在所述主轴6上,所述动涡盘2通过所述动涡盘轴承8与所述主轴6连接。[〇〇17] 所述涡旋压缩机还包括防自转机构9,所述防自转机构9保证动涡盘2与静涡盘1的正确啮合,使涡旋压缩机工作稳定可靠。所述防自转机构9可采用十字联轴节、球形联轴节、 柱销与孔联轴节、钢球与环槽组合联轴节、曲柄销等本领域公知的防自转机构,其与涡旋压缩机的连接方式采用本领域的现有技术,此处不进行详细描述。
[0018] 所述涡旋压缩机工作时,由于气体力的作用,所述动涡盘2紧靠所述耐磨垫片3,使所述卸压孔3b闭合,此时涡旋压缩机的吸气腔与排气腔隔离;所述涡旋压缩机停机时,单向阀11闭合,由于气体力消失,所述动涡盘2远离所述耐磨垫片3,所述卸压孔3b开启,吸气腔与排气腔连通,系统压差迅速平衡,从而减少再启动时的扭矩。
[0019] 以上对本发明做了详尽的描述,其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明的精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。

Claims (3)

1.一种可快速卸压的涡旋压缩机,包括壳体(10)、静涡盘(1)、动涡盘(2)及支架⑷,所 述静涡盘⑴及支架⑷固定在所述壳体(10)上,所述动涡盘⑵通过传动机构与支架⑷连 接,其特征在于:所述支架⑷端面开设有回气槽(4a),所述静涡盘⑴开设有回气孔(la); 所述涡旋压缩机还包括耐磨垫片(3),所述耐磨垫片(3)设置在支架⑷与动涡盘(2)之间, 并与支架(4)端面抵接,从而使所述回气槽(4a)形成密封通道;所述耐磨垫片(3)上设有通 气孔(3a)和卸压孔(3b),所述回气孔(la) —端经所述通气孔(3a)与所述回气槽(4a)相通, 另一端与涡旋压缩机高压腔室相通,所述回气槽(4a)通过所述卸压孔(3b)与涡旋压缩机低 压腔室相通。
2.根据权利要求1所述的涡旋压缩机,其特征在于:所述涡旋压缩机工作时,所述动涡 盘⑴紧靠所述耐磨垫片(3),使所述卸压孔(3b)闭合;所述涡旋压缩机停机时,所述动涡盘 (2)远离所述耐磨垫片(3),所述卸压孔(3b)开启,高压腔室与低压腔室连通,系统压差平衡。
3.根据权利要求1所述的涡旋压缩机,其特征在于:所述传动机构包括支架轴承(5)、主 轴(6)、轴套⑵和动涡盘轴承⑶,所述主轴(6)通过所述支架轴承⑶与所述支架⑷转动 连接,所述轴套⑵套设在所述主轴(6)上,所述动涡盘(2)通过所述动涡盘轴承⑶与所述 主轴(6)连接。
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CN107575385A (zh) * 2017-09-04 2018-01-12 江苏成科新能源有限公司 一种汽车空调涡旋压缩机
CN107781161A (zh) * 2017-09-04 2018-03-09 江苏成科新能源有限公司 一种汽车空调压缩机的定涡旋盘
CN107829930A (zh) * 2017-09-04 2018-03-23 江苏成科新能源有限公司 一种汽车空调压缩机

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Publication number Priority date Publication date Assignee Title
CN107575385A (zh) * 2017-09-04 2018-01-12 江苏成科新能源有限公司 一种汽车空调涡旋压缩机
CN107781161A (zh) * 2017-09-04 2018-03-09 江苏成科新能源有限公司 一种汽车空调压缩机的定涡旋盘
CN107829930A (zh) * 2017-09-04 2018-03-23 江苏成科新能源有限公司 一种汽车空调压缩机
CN107781161B (zh) * 2017-09-04 2020-02-07 江苏成科新能源有限公司 一种汽车空调压缩机的定涡旋盘

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