CN201281018Y - Vapour injecting and sealing device and rotary compressor - Google Patents
Vapour injecting and sealing device and rotary compressor Download PDFInfo
- Publication number
- CN201281018Y CN201281018Y CNU2008202003663U CN200820200366U CN201281018Y CN 201281018 Y CN201281018 Y CN 201281018Y CN U2008202003663 U CNU2008202003663 U CN U2008202003663U CN 200820200366 U CN200820200366 U CN 200820200366U CN 201281018 Y CN201281018 Y CN 201281018Y
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- sealing
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- cylinder
- fumarole
- seal arrangement
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Abstract
The utility model relates to a vapor injection sealing device, comprising a sealing cylinder, a piston, a first sealing mechanism and a second sealing mechanism; the sealing cylinder is provided with an opening part, and the opening of which is matched with a gas injecting hole on the compressor flange, a medium-pressure port and an injecting hole are arranged on the sealing cylinder, the piston and the outer edge thereof are provided with the first sealing mechanism which separates the sealing cylinder into a medium-pressure cavity and an injecting cavity, the second sealing mechanism is arranged at the end part of the piston, the second sealing mechanism plugs the gas injecting hole which is opened on the compressor flange when the piston is arranged in a first position in the sealing cylinder, and when the piston is arranged in a second position, the gas injecting hole which is opened on the compressor flange is communicated with the injecting hole; the vapor injection sealing device has compact structure and good sealing effect, and can be used as an independent component for being arranged on the various rotary compressors. The utility model provides a rotary compressor which is provided with the vapor injection sealing device, by arranging the corresponding pipeline and a control valve, enthalpy control can be more reasonable and reliable.
Description
Technical field
The utility model relates to rotary compressor, relates in particular to a kind of vapour injection seal arrangement and has the rotary compressor of this vapour injection seal arrangement.
Background technique
Common rotary compressor is made up of major parts such as shell, motor, bent axle, cylinder, roller, slide plate, upper flange, lower flanges.Shown in Figure 1 is roller, the schematic representation that slide plate cooperates with cylinder etc., offer intakeport 121 and relief opening 122 on the cylinder 12, on the assembling rear cylinder 12, following two ends are by last, lower flange sealing (not shown), constituted the active chamber of compressor, roller 17 is arranged in the active chamber, and be contained on the eccentric crankshaft 15 by driven by motor, roller 17 rolls along cylinder 12 inwalls, form a meniscate active chamber with cylinder 12, slide plate 16 makes its end closely contact with roller 17 by the active force of spring, the crescent shape active chamber is divided into two-part, its volume size is along with the corner of roller changes, the pressure of gas then changes along with the size of volume in the volume, thereby finishes the working procedure of compressor.
In order to reach higher heating capacity, the air supply that increases in the compression chamber is very important.This just needs an energy reclaiming system waste heat and supplies with the vapour injecton arrangement that compression chamber carries out loop compression.
The applicant discloses a kind of rotary compressor with air injection enthalpy-increasing function for No. 200720050796.7 at Chinese patent, offer one or more fumaroles on upper bearing (metal) in rotary compressor (upper flange) or the lower bearing (lower flange), these one or more fumaroles cooperate with a pipeline, make that cylinder of compressor can be by described fumarole and pipeline and compressor external communications, the fumarole place is provided with an one-way valve, make external fluid to enter in the cylinder, and the fluid in the cylinder can not be discharged through described fumarole and pipeline through described pipeline and fumarole.Above-mentioned patented technology has been improved the structure of traditional rotary compressor, makes the refrigeration agent of gaseous form to be ejected in the compresser cylinder by a pipeline, has improved the inhalation temperature of rotary compressor, has improved compression efficiency, and has had energy-saving advantages.What but the fumarole place was provided with in the above-mentioned patented technology be one-way valve, and disclosed one-way valve is the form that steel ball cooperates circular hole, and its structure and control mode are simple, and reliability is still waiting reinforcement.
The model utility content
The purpose of this utility model is to use for reference existing rotary compressor, provide a kind of through improved, reliable in structure, installation and inspection easily, can effectively reach the vapour injection seal arrangement that increases the enthalpy effect, and the rotary compressor of using this vapour injection seal arrangement.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of vapour injection seal arrangement, be used for compressor upper flange or lower flange on the fumarole offered cooperate, to realize the enthalpy that increases, it is characterized in that compressor, comprising:
One sealing cylinder has the opening portion that cooperates with described fumarole and reaches middle pressure mouth and the jetburner that different heights is also offered on cylinder body;
One piston is arranged in the sealing cylinder;
One places first sealing mechanism of described piston outer rim, and itself and described piston are pressed chamber and spray chamber in isolating in the sealing cylinder;
One places described pistons end and is used for second sealing mechanism of the described fumarole of shutoff;
Described piston sealing in the cylinder primary importance and the second place between slide, when primary importance, the described fumarole of the described second sealing mechanism shutoff, when the second place, described fumarole is communicated with described jetburner.
A kind of rotary compressor with above-mentioned vapour injection seal arrangement comprises shell, motor, bent axle, cylinder, upper flange, lower flange, roller, slide plate, offers fumarole on described upper flange or the lower flange, it is characterized in that, also comprises:
Pressure pipe in one first is connected the middle pressure mouth of offering on the sealing cylinder with the compressor air suction mouth;
One is arranged on first valve on the pressure pipe in first;
Pressure pipe in one second is connected the middle pressure mouth of offering on the sealing cylinder with exhaust outlet of compressor;
One is arranged on second valve on the pressure pipe in second;
One injection pipe is connected jetburner with the gas jet source;
Described vapour injection seal arrangement sealing cylinder opening portion and described upper flange or lower flange on the fumarole offered be communicated with cooperation.
The vapour injection seal arrangement that the utility model provides adopts the form of sealing cylinder fitting piston, and compact structure has good sealing effect simultaneously, can be used as stand-alone assembly and is installed on easily on the existing all kinds of rotary compressors; Rotary compressor with above-mentioned vapour injection seal arrangement, and then by corresponding pipeline and control valve are set, utilize the motion of the pressure control piston of the external gas pressure of middle pressure chamber gas pressure in the vapour injection seal arrangement, jetburner and compresser cylinder internal gas, increase enthalpy or do not increase switching between the enthalpy thereby be implemented in, make control mode more rationally, reliable.
Description of drawings
Fig. 1 is the schematic representation that roller in the common rotary compressor, slide plate cooperate with cylinder etc.;
The sectional view of the vapour injection seal arrangement that Fig. 2 provides for embodiment one, wherein piston is in primary importance;
The sectional view of the vapour injection seal arrangement that Fig. 3 provides for embodiment one, wherein piston is in the second place;
The sectional view of the vapour injection seal arrangement that Fig. 4 provides for embodiment two;
The sectional view of lower flange and vapour injection seal arrangement mating part in the rotary compressor that Fig. 5 provides for the utility model;
The partial cross section figure of the another kind of fit system of lower flange and vapour injection seal arrangement in the rotary compressor that Fig. 6 provides for the utility model;
Fig. 7 is that rotary compressor that the utility model provides is applied in the schematic representation in the refrigeration system.
Description of reference numerals is as follows: housing 11, cylinder 12, upper flange 13, lower flange 14, bent axle 15, slide plate 16, roller 17, intakeport 121, relief opening 122, fumarole 141, sealing cylinder 21, piston 22, seal ring 231, seal ring 232, seal ring 233, sealing gasket 24, spring 28, bulge loop 291, bulge loop 292, opening portion 211, the middle mouth 213 of pressing, the middle chamber 230 of pressing, jetburner 214, pressure pipe 251 in the spray chamber 240, the first, pressure pipe 252 in second, injection pipe 26, first valve 31, second valve 32, the 3rd valve 33, first throttle device 34, liquid-storage container 35, second throttling arrangement 36.
Embodiment
Embodiment one
As shown in Figure 2, the vapour injection seal arrangement that embodiment one provides comprises sealing cylinder 21 and piston 22, sealing cylinder 21 is cylindric, one end is to be used for the opening portion 211 that cooperates with compressor lower flange 14, this opening portion 211 embeds in the mounting groove that centers on its fumarole 141 settings on the lower flange 14 during assembling, and seal ring 231 is set in opening portion 211 peripheries, realization is tightly connected with lower flange 14, the fumarole of offering on the opening of opening portion 211 and the lower flange 14 141 is communicated with cooperation, presses mouthfuls 213 and jetburner 214 during different heights also offers on the sealing cylinder 21.Described piston 22 is roughly cylindrical, be arranged in the sealing cylinder 21, piston 22 outer rims are provided with first sealing mechanism, this first sealing mechanism is for being provided with around piston 22 peripheries, and in described, press mouthfuls 213 and jetburner 214 between seal ring 232 and seal ring 233, by piston 22 and seal ring 232,233 sealing isolate in the cylinder 21 one with middle pressure mouth 213 middle pressure chambeies 230 that are communicated with and a spray chamber 240 that is communicated with jetburner 214, piston 22 ends also are provided with one second sealing mechanism, this second sealing mechanism is to be arranged on the sealing gasket 24 of piston towards lower flange 14 fumaroles 141 1 ends, piston 22 sealing in the cylinder 21 primary importance (as Fig. 2) and the second place (as Fig. 3) between slip, the fumarole of offering on the sealing gasket 24 shutoff lower flanges 14 when primary importance 141, the fumarole of offering on the lower flange 14 when the second place 141 is communicated with described jetburner 214.
Embodiment two
As shown in Figure 4, vapour injection seal arrangement that embodiment two provides and embodiment one difference are: (1) increases by a spring 28, presses in the chamber 230 in being arranged on, and an end cooperates with piston 22, the other end cooperates with sealing cylinder 21 inwalls, is used for the stressed of regulating piston 22; (2) described first sealing mechanism is for being provided with and pressing two bulge loops 291,292 between mouth and the jetburner around piston 22 is peripheral in described.
The utility model also provides a kind of rotary compressor, comprises shell, motor, bent axle, cylinder, upper flange, lower flange, roller, slide plate, and it is that prior art repeats no more herein that above-mentioned each parts and installation thereof are closed.The innovation part of this rotary compressor is described below in conjunction with Fig. 5 and Fig. 7, it also comprises embodiment one or embodiment's two described vapour injection seal arrangements, pressure pipe 251 in first, pressure pipe 252 in second, injection pipe 26, first valve 31 and second valve 32, wherein the middle pressure of vapour injection seal arrangement mouthfuls 213 is connected with the compressor air suction mouth by pressure pipe 251 in first, first valve 31 is set on the pressure pipe 251 in first, in press mouthfuls 213 also to be connected with exhaust outlet of compressor by pressure pipe 252 in second, second valve 32 is set on the pressure pipe 252 in second, jetburner 214 is connected with the gas jet source by injection pipe 26, and injection pipe is provided with the 3rd valve 33.
In the foregoing description, fumarole 141 is opened on the lower flange 14, and described vapour injection seal arrangement is installed the lower end of lower flange 14.But, to those skilled in the art, fumarole can be opened on the upper flange 13 fully, and the mounting groove that is used to install described vapour injection seal arrangement opening portion 211 this moment just is opened in the upper end of upper flange 13, and described vapour injection seal arrangement just is positioned at the upper end of upper flange 13.In addition, its leading portion part of the fumarole of offering on upper flange 13 or the lower flange 14 can be a cross setting, as shown in Figure 6, during this kind situation, the mounting groove that is used to install described vapour injection seal arrangement opening portion 211 just is opened in the side of lower flange 14 (can certainly be upper flange 13), and described vapour injection seal arrangement correspondence is positioned at the side of upper flange 13 or lower flange 14.
The following describes the working principle of the compressor with rolling rotor that the utility model provides: the middle pressure pressure Pd that presses during piston 22 suffered active forces comprise in the vapour injection seal arrangement mouthful, the external gas pressure Ps of jetburner and the compressed-air actuated pressure P t of cylinder interior, when increasing enthalpy (heating process), first valve 31 is opened and second valve 32 is closed (see figure 7), the middle mouthful intakeport of 213 connection compressors of pressing of vapour injection this moment seal arrangement, jetburner 214 connects the outer jet gas source, Pd＜Ps+Pt, press the pressure reduction between mouth 213 and the jetburner 214 upwards to push away (as Fig. 2) in piston 22 processes, make extraneous gas enter compresser cylinder inside, realize increasing the purpose of enthalpy by the fumarole of offering on the lower flange 14 141.When not increasing enthalpy (process of refrigerastion), second valve 32 is opened and first valve 31 is closed, the middle mouthful 213 connection Compressor Discharge Pressures of pressing, Pd〉Ps+Pt, piston 22 through in press mouthfuls 213 pressure upwards reset (as Fig. 3), sealing gasket 24 shutoff fumaroles 141, thus stop extraneous gas to enter compresser cylinder inside by fumarole 141, realize good sealing effect.
Claims (10)
1. vapour injection seal arrangement, be used for compressor upper flange or lower flange on the fumarole offered cooperate, to realize the enthalpy that increases, it is characterized in that compressor, comprising:
One sealing cylinder has the opening portion that cooperates with described fumarole and reaches middle pressure mouth and the jetburner that different heights is also offered on cylinder body;
One piston is arranged in the sealing cylinder;
One places first sealing mechanism of described piston outer rim, and itself and described piston are pressed chamber and spray chamber in isolating in the sealing cylinder;
One places described pistons end and is used for second sealing mechanism of the described fumarole of shutoff;
Described piston sealing in the cylinder primary importance and the second place between slide, when primary importance, the described fumarole of the described second sealing mechanism shutoff, when the second place, described fumarole is communicated with described jetburner.
2. vapour injection seal arrangement according to claim 1 is characterized in that, described first sealing mechanism is for being provided with and pressing seal ring between mouth and the jetburner around piston is peripheral in described.
3. vapour injection seal arrangement according to claim 1 is characterized in that, described first sealing mechanism is for being provided with and pressing bulge loop between mouth and the jetburner around piston is peripheral in described.
4. vapour injection seal arrangement according to claim 1 is characterized in that, also comprises spring, is arranged on described middle the pressure in the chamber, and this spring one end cooperates with piston, and the other end cooperates with the sealing inside wall of cylinder.
5. vapour injection seal arrangement according to claim 1 is characterized in that, the sealing gasket that described second sealing mechanism is provided with for fumarole one end of offering on upper flange or lower flange at piston.
6. rotary compressor with any described vapour injection seal arrangement of claim 1 to 5, comprise shell, motor, bent axle, cylinder, upper flange, lower flange, roller, slide plate, offer fumarole on described upper flange or the lower flange, it is characterized in that, also comprise:
Pressure pipe in one first is connected the middle pressure mouth of offering on the sealing cylinder with the compressor air suction mouth;
One is arranged on first valve on the pressure pipe in first;
Pressure pipe in one second is connected the middle pressure mouth of offering on the sealing cylinder with exhaust outlet of compressor;
One is arranged on second valve on the pressure pipe in second;
One injection pipe is connected jetburner with the gas jet source;
Described vapour injection seal arrangement sealing cylinder opening portion and described upper flange or lower flange on the fumarole offered be communicated with cooperation.
7. rotary compressor according to claim 6, it is characterized in that, be provided with mounting groove around its fumarole on compressor upper flange or the lower flange, the opening portion of described vapour injection seal arrangement sealing cylinder embeds in this mounting groove, and in described opening portion periphery seal ring is set.
8. rotary compressor according to claim 7 is characterized in that, described mounting groove is opened in the upper end of upper flange or the lower end of lower flange, and described vapour injection seal arrangement correspondence is positioned at the upper end of upper flange or the lower end of lower flange.
9. rotary compressor according to claim 7 is characterized in that described mounting groove is opened in the side of upper flange or lower flange, and described vapour injection seal arrangement correspondence is positioned at the side of upper flange or lower flange.
10. rotary compressor according to claim 6 is characterized in that, also is provided with the 3rd valve on the described injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202003663U CN201281018Y (en) | 2008-09-10 | 2008-09-10 | Vapour injecting and sealing device and rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202003663U CN201281018Y (en) | 2008-09-10 | 2008-09-10 | Vapour injecting and sealing device and rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281018Y true CN201281018Y (en) | 2009-07-29 |
Family
ID=40927892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202003663U Expired - Lifetime CN201281018Y (en) | 2008-09-10 | 2008-09-10 | Vapour injecting and sealing device and rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281018Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041653A (en) * | 2015-08-06 | 2015-11-11 | 广东美芝制冷设备有限公司 | Rotary type enhanced vapor injection compressor |
| CN115038869A (en) * | 2020-01-10 | 2022-09-09 | 江森自控泰科知识产权控股有限责任合伙公司 | Economizer control system and method |
-
2008
- 2008-09-10 CN CNU2008202003663U patent/CN201281018Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041653A (en) * | 2015-08-06 | 2015-11-11 | 广东美芝制冷设备有限公司 | Rotary type enhanced vapor injection compressor |
| CN105041653B (en) * | 2015-08-06 | 2017-08-29 | 广东美芝制冷设备有限公司 | Rotary jet enthalpy-increasing compressor |
| CN115038869A (en) * | 2020-01-10 | 2022-09-09 | 江森自控泰科知识产权控股有限责任合伙公司 | Economizer control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |