CN201517504U - Controllable structure of back pressure gas quality exchange - Google Patents
Controllable structure of back pressure gas quality exchange Download PDFInfo
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- CN201517504U CN201517504U CN2009200783330U CN200920078333U CN201517504U CN 201517504 U CN201517504 U CN 201517504U CN 2009200783330 U CN2009200783330 U CN 2009200783330U CN 200920078333 U CN200920078333 U CN 200920078333U CN 201517504 U CN201517504 U CN 201517504U
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- back pressure
- pressure gas
- gas flow
- vortex
- flow control
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Abstract
The utility model relates to a controllable structure of back pressure gas quality exchange. The controllable structure comprises a controllable room, a spring, a back pressure gas flow control piston, a seal ring, a static vortex back pressure channel and a dynamic vortex back pressure channel, wherein the control room is arranged on a static vortex, and the spring, the back pressure cavity gas flow control piston and the seal ring are arranged in the control room, the spring is arranged on the upper portion of the control room, and is arranged on the back pressure gas flow control piston, the back pressure gas flow control piston is arranged on he lower portion of the controllable room, and a back pressure gas communicating hole is arranged on the back pressure gas flow control piston, the seal ring is arranged on the back pressure gas flow control piston, the static vortex back pressure channel is arranged on the static vortex, and the dynamic vortex back pressure channel is arranged on the dynamic vortex. Compared with the prior art, the controllable structure has the advantages of lowering the fluctuation of gas pressure in the back pressure cavity, and improves the running reliability of a compressor and the like.
Description
Technical field
The utility model relates to a kind of scroll compressor of axial elasticity structure, especially relates to a kind of controlled architecture of back pressure gaseous mass exchange of the scroll compressor that is applicable to the axial elasticity structure.
Background technique
Scroll compressor for the axial elasticity structure, gas pressure in the back pressure cavity is provided by the gas pressure of compression chamber, because the gas of back pressure cavity and the compression chamber gas that pressure is changing constantly constantly carry out mass exchange, and the gas pressure change scope of compression chamber is bigger, this just causes the gas pressure wave properties in the back pressure cavity bigger, thereby the whirlpool dish is played pendulum, directly have influence on the reliability of compressor.As shown in Figure 1, be the measured drawing of back pressure cavity gas pressure change under certain operating mode.
For reducing the wave properties of gas pressure in the back pressure cavity, existing solution: 1) on back pressure cavity, open, increase the back pressure cavity volume, make the volume of back pressure cavity volume much larger than compression chamber with deep trouth; 2) open the groove of small size in the static vortex tooth bottom surface, open back pressure hole on the tooth of moving vortex whirlpool, make the gas pressure impulse scope of back pressure cavity narrow.First method, because structural restriction, the area of back pressure cavity and the degree of depth of back pressure cavity are limited, make the volume of back pressure cavity can not accomplish very big; Second method is processed very little back pressure hole and is had difficulty of processing because the scroll wrap wall is relatively thinner and high.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of wave properties that reduces the gas pressure of back pressure cavity, the controlled architecture of the back pressure gaseous mass exchange of the reliability of raising compressor operation for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of controlled architecture of back pressure gaseous mass exchange, it is characterized in that, this controlled architecture comprises controlled chamber, spring, back pressure gas flow control valve plug, seal ring, quiet vortex back pressure passage and moving vortex back pressure passage, described controlled chamber is arranged on the quiet vortex, hold described spring, the controlled plug of back pressure cavity gas flow, behind the seal ring, form certain plenum chamber on top, described spring is positioned at the top of controlled chamber, be arranged on the back pressure gas flow control valve plug, described back pressure gas flow control valve plug is positioned at the bottom of controlled chamber, which is provided with back pressure gas communication hole, described seal ring is arranged on the back pressure gas flow control valve plug, and described quiet vortex back pressure passage is arranged on the quiet vortex, and described moving vortex back pressure passage is arranged on the moving vortex.
Described controlled architecture is arranged on the quiet vortex, and the back pressure gas flow control valve plug of controlled architecture is close on the plate top surface of moving vortex.
Described back pressure gas communication hole one end is communicated to the plenum chamber on top, controlled chamber, and the other end is communicated to the interface of back pressure gas flow control valve plug and moving vortex.
Described back pressure gas communication hole is provided with more than 1 or 1, and its shape can be circular, ellipse, or other non-regular shapes.
Described quiet vortex back pressure passage one end is communicated to the plenum chamber on top, controlled chamber, and the other end is communicated to compression chamber.
Described moving vortex back pressure passage passage one end is communicated to the back pressure gas flow control valve plug of controlled architecture, and the other end is communicated to back pressure cavity.
Compared with prior art, the utility model back pressure gaseous mass exchange controlled architecture, be installed on the quiet vortex, have back pressure gas communication hole on the back pressure gas flow control valve plug of this controlled architecture, rotation by moving vortex back pressure passage servo-actuated vortex, control back pressure cavity gas communication hole can be in two states of connected sum sealing, size by control back pressure cavity gas communication hole, shape, make gas in the back pressure cavity in very narrow zone optionally with compression chamber in gas carry out mass exchange, thereby the wave properties of gas in the reduction back pressure cavity, the reliability of raising compressor operation.
Description of drawings
Fig. 1 is the measured drawing of back pressure cavity gas pressure change under existing certain operating mode;
Fig. 2 always schemes for structural representation of the present utility model;
Fig. 3 is the A portion enlarged view of Fig. 2;
Fig. 4 is a back pressure gas flow control valve plug sectional view;
Fig. 5 is arranged in the structural representation that is communicated with back pressure cavity of the position of Fig. 4 I for back pressure gas communication hole;
Fig. 6 is arranged in the structural representation that is communicated with back pressure cavity of the position of Fig. 4 II for back pressure gas communication hole;
Fig. 7 is arranged in the structural representation that is communicated with back pressure cavity of the position of Fig. 4 III for back pressure gas communication hole;
The pressure schematic representation that Fig. 8 is communicated with for back pressure cavity.
Among the figure: the quiet vortex of 1-, 2-moves vortex, the 3-upper bracket, the quiet vortex back pressure of 4-passage, 5-moves vortex back pressure passage, the 6-spring, the 7-seal ring, 8-back pressure gas flow control valve plug, the controlled chamber of 9-, the 10-main shaft, 11-back pressure cavity Sealing A, 12-back pressure cavity Sealing B, the quiet vortex back pressure of 13-passage one end A, the quiet vortex back pressure of 14-passage one end B, 15-moves vortex back pressure passage one end A, 16-moves vortex back pressure passage one end B, the movement locus in the moving vortex upper surface back pressure hole center of circle of 17-, 18-back pressure gas communication hole, the 19-back pressure cavity is communicated with exhaust cavity, 20-presses the chamber to be communicated with second compression chamber.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Shown in Fig. 2-8, a kind of controlled architecture of back pressure gaseous mass exchange, this controlled architecture comprises controlled chamber 9, spring 6, back pressure gas flow control valve plug 8, seal ring 7, quiet vortex back pressure passage 4 and moving vortex back pressure passage 5, described spring 6 is arranged on the back pressure gas flow control valve plug 8, described back pressure gas flow control valve plug 8 is provided with two back pressure gas communication holes 18, described back pressure gas communication hole 18 1 ends are communicated to the plenum chamber on 9 tops, controlled chamber, the other end is communicated to the interface of back pressure gas flow control valve plug 8 and moving vortex, described seal ring 7 is arranged on the back pressure gas flow control valve plug 8, described quiet vortex back pressure passage 4 is located at and is arranged on the quiet vortex 1, quiet vortex back pressure passage 4 one ends 13 are communicated to compression chamber, the other end 14 is communicated to the plenum chamber on 9 tops, controlled chamber, described moving vortex back pressure passage 5 is located on the moving vortex 2, moving vortex back pressure passage passage 5 one ends 15 are communicated to the back pressure gas flow control valve plug 8 of controlled architecture, the other end 16 is communicated to back pressure cavity, is provided with back pressure cavity Sealing A11 and back pressure cavity Sealing B12 in the back pressure cavity.
Above-mentioned controlled architecture is arranged on the quiet vortex 1, and the back pressure gas flow control valve plug 8 of controlled architecture is close on the plate top surface of moving vortex 2.Moving vortex 2 is arranged between upper bracket 3 and the quiet vortex 1.
When compressor has just started, the pretightening force of back pressure gas flow control valve plug 8 by spring 6 is close on the plate top surface of moving vortex 2 and forms metallic seal, along with the gas of compression chamber by quiet vortex back pressure passage 4, the back pressure of flowing through gas communication hole 18, moving vortex back pressure passage 5, flow into back pressure cavity, counterpressure forms, and moving vortex 2 floats, axial seal between dynamic and static vortex forms, and moving, whirlpool dish enters normal working state.Owing on the back pressure gas flow control valve plug 8 two back pressure gas communication holes 18 are arranged, so when having only an end 15 of the back pressure passage 5 of moving vortex to move to 18 places, two back pressure gas communication holes, can realize the gaseous mass exchange of back pressure cavity and compression chamber, the gaseous mass exchange can not be carried out in other positions.Be that there are two working staties in back pressure gas communication hole 18: connected state and closed state.When two back pressure gas communication hole 18 1 ends are communicated with the upper cavity chamber of controlled chamber 9, when the other end is communicated with an end 15 of the back pressure passage 5 of moving vortex, form gas flow channel, compression chamber and back pressure cavity are carried out the gaseous mass exchange, and described back pressure gas communication hole 18 is in connected state; When two back pressure gas communication holes 18, one end still is communicated with the upper cavity chamber of controlled chamber 9, and the other end only is attached on the plate top surface of moving vortex, the gas flow channel passage that compression chamber gas enters back pressure cavity is closed, the gaseous mass exchange of compression chamber and back pressure cavity stops, and described back pressure gas communication hole is in closed state.
Be illustrated in figure 4 as the movement locus 17 that a end that an end 15 of the back pressure passage 5 of moving vortex 1 is communicated with in back pressure gas flow control valve plug 8 slips over, be illustrated in figure 5 as, the position of I shown in Figure 4 is arrived in the end motion that one end 15 of the back pressure passage 5 of moving vortex 1 is communicated with in back pressure gas flow control valve plug 8, back pressure gas communication hole 18 is in connected state, the gas of compression chamber enters controlled architecture by quiet vortex back pressure passage 4, pass controlled chamber 9 and back pressure gas communication hole 18, driven vortex back pressure passage 5 enters back pressure cavity, make gas and the gas in the compression chamber in the back pressure cavity carry out mass exchange, as shown in Figure 6, when the position of II shown in Figure 4 is arrived in the end motion that one end 15 of the back pressure passage 5 of moving vortex 1 is communicated with in back pressure gas flow control valve plug 8, back pressure gas communication hole 18 is in closed state, compression chamber is not communicated with back pressure cavity, the gaseous mass exchange stops, as shown in Figure 7, when the position of III shown in Figure 4 is arrived in the end motion that one end 15 of the back pressure passage 5 of moving vortex 1 is communicated with in back pressure gas flow control valve plug 8, back pressure gas communication hole 18 is in connected state once more, carries out the gaseous mass exchange.Corresponding pressure span is as shown in Figure 8: 19 is that back pressure cavity is communicated with exhaust cavity, 16 for pressing the chamber to be communicated with second compression chamber, and an end 15 of the back pressure passage 5 of moving vortex 1 is when other positions are arrived in an end motion of back pressure gas flow control valve plug 8 connections, back pressure gas communication hole 18 is that the end face of passive vortex base plate is sealed, by adjusting the position and the shape in back pressure gas communication hole 18, the gas pressure that reaches back pressure cavity is impulse in narrow scope selectively, thereby reduce the wave properties of the gas pressure of back pressure cavity, improve the purpose of the reliability of compressor operation.
Can be provided with 1-6 according to the size of back pressure gas flow control valve plug 8 and the needs back pressure gas communication hole 18 of compressor, its shape can be circular, ellipse, or other non-regular shapes.
Claims (6)
1. the controlled architecture of back pressure gaseous mass exchange, it is characterized in that, this controlled architecture comprises controlled chamber, spring, back pressure gas flow control valve plug, seal ring, quiet vortex back pressure passage and moving vortex back pressure passage, described controlled chamber is arranged on the quiet vortex, described spring, the controlled plug of back pressure cavity gas flow, seal ring is arranged at controlled indoor, described spring is positioned at the top of controlled chamber, be arranged on the back pressure gas flow control valve plug, described back pressure gas flow control valve plug is positioned at the bottom of controlled chamber, which is provided with back pressure gas communication hole, described seal ring is arranged on the back pressure gas flow control valve plug, described quiet vortex back pressure passage is arranged on the quiet vortex, one end is communicated to the plenum chamber on top, controlled chamber, and the other end is communicated to compression chamber, and described moving vortex back pressure passage is arranged on the moving vortex, one end is communicated to the back pressure gas flow control valve plug of controlled architecture, and the other end is communicated to back pressure cavity.
2. the controlled architecture of a kind of back pressure gaseous mass exchange according to claim 1 is characterized in that described controlled architecture is arranged on the quiet vortex, and the back pressure gas flow control valve plug of controlled architecture is close on the plate top surface of moving vortex.
3. the controlled architecture of a kind of back pressure gaseous mass exchange according to claim 1, it is characterized in that, described back pressure gas communication hole one end is communicated to the plenum chamber on top, controlled chamber, and the other end is communicated to the interface of back pressure gas flow control valve plug and moving vortex.
4. the controlled architecture of a kind of back pressure gaseous mass exchange according to claim 3 is characterized in that described back pressure gas communication hole is provided with more than 1 or 1, and its shape can be circular or oval.
5. the controlled architecture of a kind of back pressure gaseous mass exchange according to claim 1 is characterized in that described quiet vortex back pressure passage one end is communicated to the plenum chamber on top, controlled chamber, and the other end is communicated to compression chamber.
6. the controlled architecture of a kind of back pressure gaseous mass exchange according to claim 1 is characterized in that described moving vortex back pressure passage passage one end is communicated to the back pressure gas flow control valve plug of controlled architecture, and the other end is communicated to back pressure cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200783330U CN201517504U (en) | 2009-07-16 | 2009-07-16 | Controllable structure of back pressure gas quality exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200783330U CN201517504U (en) | 2009-07-16 | 2009-07-16 | Controllable structure of back pressure gas quality exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517504U true CN201517504U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200783330U Expired - Lifetime CN201517504U (en) | 2009-07-16 | 2009-07-16 | Controllable structure of back pressure gas quality exchange |
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| Country | Link |
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| CN (1) | CN201517504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649992A (en) * | 2016-01-18 | 2016-06-08 | 广东美的暖通设备有限公司 | Method for reducing backpressure fluctuation of scroll compressor and scroll compressor |
| CN106351830A (en) * | 2016-11-08 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor |
| CN107893758A (en) * | 2017-11-06 | 2018-04-10 | 珠海格力电器股份有限公司 | Screw compressor and there is its air conditioner |
-
2009
- 2009-07-16 CN CN2009200783330U patent/CN201517504U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649992A (en) * | 2016-01-18 | 2016-06-08 | 广东美的暖通设备有限公司 | Method for reducing backpressure fluctuation of scroll compressor and scroll compressor |
| CN106351830A (en) * | 2016-11-08 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor |
| CN107893758A (en) * | 2017-11-06 | 2018-04-10 | 珠海格力电器股份有限公司 | Screw compressor and there is its air conditioner |
| CN107893758B (en) * | 2017-11-06 | 2024-04-16 | 珠海格力电器股份有限公司 | Scroll compressor and air conditioner with same |
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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 |
Granted publication date: 20100630 |
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| CX01 | Expiry of patent term |