CN103470504A - Energy and internal volume ratio unified regulating mechanism of screw compressor - Google Patents
Energy and internal volume ratio unified regulating mechanism of screw compressor Download PDFInfo
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- CN103470504A CN103470504A CN2013103829661A CN201310382966A CN103470504A CN 103470504 A CN103470504 A CN 103470504A CN 2013103829661 A CN2013103829661 A CN 2013103829661A CN 201310382966 A CN201310382966 A CN 201310382966A CN 103470504 A CN103470504 A CN 103470504A
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Abstract
The invention belongs to an energy and internal volume ratio unified regulating mechanism of a screw compressor. The regulating mechanism aims at solving the problems that energy and internal volume ratio regulation of the screw compressor is performed by two mechanisms, the structure and the control are complicated, and the reliability is poor in the background technology. The regulating mechanism adopts the technical scheme that one end of an oil piston body is connected with an oil piston cover; the other end of the oil piston body is connected with a machine body; the oil piston body is internally provided with an oil piston; the oil piston is connected with one end of a guide rod; the other end of the guide rod is connected with an energy and internal volume ratio regulating slide valve; a spring is arranged on the guide rod in a sleeving manner; the energy and internal volume ratio regulating slide valve is located in a cavity formed by the machine body and a rotor, and is axially overlapped with the rotor to different extents; the cavity of the machine body is provided with a stop shoulder; a radial exhaust port is formed at the rear upper part of the energy and internal volume ratio regulating slide valve; the size of the radial exhaust port can be regulated by the rotor and the energy and internal volume ratio regulating slide valve when the valve moves left and right; and an oil inlet and outlet port A and an oil inlet and outlet port B are formed in the oil piston body. The regulating mechanism is applied to the screw compressor for the energy and internal volume ratio regulation.
Description
Technical field: the invention belongs to helical-lobe compressor subsidiary body, particularly the controlling mechanism of a kind of helical-lobe compressor energy and interior volume specific ratio unification.
Background technique: the operating end load of helical-lobe compressor can change, and need to carry out energy adjustment to helical-lobe compressor, to reduce the power consumpiton of compressor.On the other hand, the variation of extraneous weather conditions or the variation of operating conditions, the outer pressure ratio of helical-lobe compressor also can change in a larger scope, causes compressor under-voltage contracting or overcompression in various degree, cause additional power consumption, need to carry out the interior volume specific ratio adjusting to helical-lobe compressor.Current capacity controlling gear mainly is comprised of energy adjustment guiding valve and oily piston thereof, and the length that enters rotor by adjusting the energy guiding valve is carried out energy adjustment.Current internal volume rate regulating mechanism mainly is comprised of interior volume specific ratio regulating slide valve and oily piston thereof, by the size of adjusting energy guiding valve relief opening, carries out the interior volume specific ratio adjusting.That is to say, the energy of helical-lobe compressor and interior volume specific ratio are regulated and are regulated respectively by two cover mechanisms, cause complex structure, and component are many, and dimensional fits is many, control complexity, and reliability is poor, and energy adjustment is discontinuous.
Summary of the invention: purpose of the present invention is exactly the technological scheme that proposes the controlling mechanism of a kind of helical-lobe compressor energy and interior volume specific ratio unification, with the solution background technique, exist: the energy of helical-lobe compressor and interior volume specific ratio are regulated and are regulated respectively by two cover mechanisms, cause complex structure, component are many, dimensional fits is many, control complexity, reliability is poor, and energy adjustment is discontinuous.Solving this technical problem adopted technological scheme is: the controlling mechanism of a kind of helical-lobe compressor energy and interior volume specific ratio unification, an end that it is characterized in that oily piston body connects oily piston cap, the oil piston body the other end connects body, in the oil piston body, oily piston is set, the oil piston connects an end of guide rod, the other end of guide rod connects energy and interior volume specific ratio regulating slide valve through body, on guide rod between energy and interior volume specific ratio regulating slide valve and body, cover has spring, energy and interior volume specific ratio regulating slide valve are positioned at body and the formed cavity of rotor, when moving left and right, energy and interior volume specific ratio regulating slide valve form and in various degree overlapping of rotor axial, energy is set in the front portion of cavity that body forms and the interior volume specific ratio regulating slide valve stops into shoulder, energy and interior volume specific ratio regulating slide valve superior posterior are offered while moving left and right and rotor forms a radially relief opening of regulating the mouth size, on the oil piston body, A oil inlet and outlet and B oil inlet and outlet are set.Wherein, some oil inlet and outlets are set on oily piston body, make energy and interior volume specific ratio regulating slide valve on the axial direction of rotor, have level interrupted mobile.
The beneficial effect that the present invention had compared with the prior art is: adopt technique scheme, adjusting to interior volume specific ratio is: the oil-feed of control oil inlet and outlet and fuel-displaced, drive oily piston to be moved to the left, and drive energy and interior volume specific ratio regulating slide valve by guide rod and enter to end shoulder position (referring to Fig. 1) to mobile, now the relief opening of energy and interior volume specific ratio regulating slide valve enters the lengthwise dimension maximum of rotor, forms the fully loaded position of the minimum interior volume specific ratio of helical-lobe compressor; Oppositely control again the oil-feed of oil inlet and outlet and fuel-displaced, drive oily piston to move right, and drive energy and interior volume specific ratio regulating slide valve by guide rod and move right to its front-end face and flush (referring to Fig. 2) with the rotor front-end face, now the vent ports of energy and interior volume specific ratio regulating slide valve enters the lengthwise dimension minimum of rotor, forms the fully loaded position of the highest interior volume specific ratio of helical-lobe compressor; The helical-lobe compressor interior volume specific ratio is regulated, and is exactly regulating mechanism position between above-mentioned two states, and this adjusting is continuous.Adjusting to energy is: control the fuel-displaced and oil-feed of oil inlet and outlet, drive oily piston to move right, and drive energy and interior volume specific ratio regulating slide valve to the right to the position (referring to Fig. 3) overlapping with rotor portion by guide rod, now form the sub load position of helical-lobe compressor, when energy and interior volume specific ratio regulating slide valve leave fully loaded position, the active length of rotor is continually varying, and the energy adjustment of helical-lobe compressor is continuous like this, there is no kick; Continue to control the fuel-displaced and oil-feed of oil inlet and outlet; drive oily piston to continue to move right; and drive energy and the interior volume specific ratio regulating slide valve limit position (referring to Fig. 4) that moves right by guide rod; energy and interior volume specific ratio regulating slide valve position are limit by oily piston body; now form the position, minimum year position of helical-lobe compressor, while being the helical-lobe compressor startup and the position in while shutdown.In addition, offer some oil inlet and outlets (referring to Fig. 5) on oily piston body, but driving-energy and interior volume specific ratio regulating slide valve there is on the axial direction of rotor level interrupted mobile, realize that the level that has of energy and interior volume specific ratio is regulated.In sum, the present invention has realized using a set of mechanism adjusting screw rod compressor energy and interior volume specific ratio, and simple in structure, component are few, and fit dimension is few, controls simply, and reliability is high.Also there is the stepless continuous of energy adjustment simultaneously, avoided the energy adjustment saltation electrophoresis of existing mechanism, make the load coupling more accurate, more energy-conservation.
The accompanying drawing explanation:
Fig. 1 is the structural representation of the fully loaded location status of the minimum interior volume specific ratio of helical-lobe compressor of the present invention.Fig. 2 is the structural representation of the fully loaded location status of the highest interior volume specific ratio of helical-lobe compressor of the present invention.Fig. 3 is the structural representation of the sub load location status of helical-lobe compressor of the present invention.Fig. 4 is the structural representation of minimum year position location status of helical-lobe compressor of the present invention.Fig. 5 offers the structural representation that some oil inlet and outlets have grade adjustment state on the present invention's oil piston body.
Embodiment:
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the controlling mechanism of a kind of helical-lobe compressor energy and interior volume specific ratio unification, an end that it is characterized in that oily piston body 3 connects oily piston cap 1, oil piston body 3 the other ends connect body 5, oil piston body 3 is interior arranges oily piston 2, oil piston 2 connects an end of guide rod 4, the other end of guide rod 4 connects energy and interior volume specific ratio regulating slide valve 7 through body 5, on guide rod 4 between energy and interior volume specific ratio regulating slide valve 7 and body 5, cover has spring 10, energy and interior volume specific ratio regulating slide valve 7 are positioned at body 5 and the formed cavity of rotor 6, when moving left and right, energy and interior volume specific ratio regulating slide valve 7 form and axial in various degree overlapping of rotor 6, energy is set in the front portion of body 5 cavity that forms and interior volume specific ratio regulating slide valve 7 stops into shoulder 11, energy and interior volume specific ratio regulating slide valve 7 superior posteriors are offered while moving left and right and rotor 6 forms a radially relief opening 12 of regulating the mouth size, on oil piston body 3, A oil inlet and outlet 9 and B oil inlet and outlet 8 are set, on oil piston body 3, some oil inlet and outlets 13 are set, make energy and interior volume specific ratio regulating slide valve 7 on the axial direction of rotor 6, have level interrupted mobile.
Claims (2)
1. the controlling mechanism of a helical-lobe compressor energy and interior volume specific ratio unification, an end that it is characterized in that oily piston body (3) connects oily piston cap (1), oil piston body (3) the other end connects body (5), in oil piston body (3), oily piston (2) is set, oil piston (2) connects an end of guide rod (4), the other end of guide rod (4) connects energy and interior volume specific ratio regulating slide valve (7) through body (5), the upper cover of guide rod (4) between energy and interior volume specific ratio regulating slide valve (7) and body (5) has spring (10), energy and interior volume specific ratio regulating slide valve (7) are positioned at body (5) and the formed cavity of rotor (6), energy and interior volume specific ratio regulating slide valve (7) form while moving left and right and axial in various degree overlapping of rotor (6), energy is set in the front portion of body (5) cavity that forms and interior volume specific ratio regulating slide valve (7) stops into shoulder (11), energy and interior volume specific ratio regulating slide valve (7) superior posterior are offered while moving left and right and rotor (6) forms a radially relief opening (12) of regulating the mouth size, on oil piston body (3), A oil inlet and outlet (9) and B oil inlet and outlet (8) are set.
2. the controlling mechanism that a kind of helical-lobe compressor energy according to claim 1 and interior volume specific ratio are unified, it is characterized in that on oily piston body (3) arranging some oil inlet and outlets (13), make energy and interior volume specific ratio regulating slide valve (7) on the axial direction of rotor (6), have level interrupted mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103829661A CN103470504A (en) | 2013-08-29 | 2013-08-29 | Energy and internal volume ratio unified regulating mechanism of screw compressor |
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| CN2013103829661A CN103470504A (en) | 2013-08-29 | 2013-08-29 | Energy and internal volume ratio unified regulating mechanism of screw compressor |
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| CN103470504A true CN103470504A (en) | 2013-12-25 |
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| CN2013103829661A Pending CN103470504A (en) | 2013-08-29 | 2013-08-29 | Energy and internal volume ratio unified regulating mechanism of screw compressor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468262A (en) * | 2016-08-25 | 2017-03-01 | 北京工业大学 | Single screw compressor is combined slide valve system |
| CN108661906A (en) * | 2018-08-13 | 2018-10-16 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjusting mechanism and screw compressor |
| CN110821829A (en) * | 2019-09-23 | 2020-02-21 | 无锡压缩机股份有限公司 | Design method of slide valve of screw compressor |
| CN111022325A (en) * | 2018-10-09 | 2020-04-17 | 程士坚 | Multi-stage slide valve and screw compressor with same |
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
| WO2021047247A1 (en) * | 2019-09-11 | 2021-03-18 | 珠海格力电器股份有限公司 | Two-stage compressor and control method of two-stage compressor, and air conditioning unit |
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| JPH04342891A (en) * | 1991-05-20 | 1992-11-30 | Kobe Steel Ltd | Screw compressor |
| CN200940571Y (en) * | 2006-07-28 | 2007-08-29 | 复盛股份有限公司 | Volume automatic regulator of screw compressor |
| CN101761479A (en) * | 2008-12-24 | 2010-06-30 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
| CN203430782U (en) * | 2013-08-29 | 2014-02-12 | 吴家伟 | Regulating mechanism for integrating energy and inner volume ratio of screw compressor |
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- 2013-08-29 CN CN2013103829661A patent/CN103470504A/en active Pending
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| US4575323A (en) * | 1984-05-23 | 1986-03-11 | Kabushiki Kaisha Kobe Seiko Sho | Slide valve type screw compressor |
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| CN101761479A (en) * | 2008-12-24 | 2010-06-30 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
| CN203430782U (en) * | 2013-08-29 | 2014-02-12 | 吴家伟 | Regulating mechanism for integrating energy and inner volume ratio of screw compressor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468262A (en) * | 2016-08-25 | 2017-03-01 | 北京工业大学 | Single screw compressor is combined slide valve system |
| CN108661906A (en) * | 2018-08-13 | 2018-10-16 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjusting mechanism and screw compressor |
| WO2020034520A1 (en) * | 2018-08-13 | 2020-02-20 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjustment mechanism and screw compressor |
| US11365736B2 (en) | 2018-08-13 | 2022-06-21 | Gree Electric Appliances, Inc. Of Zhuhai | Slide valve, slide valve adjustment mechanism and screw compressor |
| CN111022325A (en) * | 2018-10-09 | 2020-04-17 | 程士坚 | Multi-stage slide valve and screw compressor with same |
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
| WO2021047247A1 (en) * | 2019-09-11 | 2021-03-18 | 珠海格力电器股份有限公司 | Two-stage compressor and control method of two-stage compressor, and air conditioning unit |
| CN110821829A (en) * | 2019-09-23 | 2020-02-21 | 无锡压缩机股份有限公司 | Design method of slide valve of screw compressor |
| CN110821829B (en) * | 2019-09-23 | 2023-11-14 | 神钢无锡压缩机股份有限公司 | Screw compressor slide valve design method |
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Application publication date: 20131225 |